[thirdparty/gcc.git] / gcc / c / ChangeLog

2025-07-01  Qing Zhao  <qing.zhao@oracle.com>

        * c-decl.cc (verify_counted_by_attribute): Change the 2nd argument
        to a vector of fields with counted_by attribute. Verify all fields
        in this vector.
        (finish_struct): Collect all the fields with counted_by attribute
        to a vector and pass this vector to verify_counted_by_attribute.
        * c-typeck.cc (build_counted_by_ref): Handle pointers with counted_by.
        Add one more argument, issue error when the pointee type is a structure
        or union including a flexible array member.
        (build_access_with_size_for_counted_by): Handle pointers with counted_by.
        (handle_counted_by_for_component_ref): Call build_counted_by_ref
        with the new prototype.

2025-06-23  Tobias Burnus  <tburnus@baylibre.com>

        * c-parser.cc (OACC_WAIT_CLAUSE_MASK): Add if clause.

2025-06-12  Jakub Jelinek  <jakub@redhat.com>

        * c-lang.h (union lang_type::maybe_objc_info): New type.
        (struct lang_type): Use union maybe_objc_info info member
        instead of tree objc_info.
        * c-decl.cc (finish_struct): Allocate struct lang_type using
        ggc_internal_cleared_alloc instead of ggc_cleared_alloc,
        and use sizeof (struct lang_type) for ObjC and otherwise
        offsetof (struct lang_type, info) as size.
        (finish_enum): Likewise.

2025-06-11  Martin Uecker  <uecker@tugraz.at>

        PR c/120510
        * c-typeck.cc (composite_type_internal): Activate checking
        assertions for all types and also inputs.
        (comptypes_for_composite_check): New helper function.
        (function_types_compatible_p): Add exception.

2025-06-11  Martin Uecker  <uecker@tugraz.at>

        * c-typeck.cc (function_types_compatible_p): Remove unused
        variables and return true/false instead of 1/0.
        (type_lists_compatible_p): Return false instead of 0.

2025-06-11  Martin Uecker  <uecker@tugraz.at>

        PR c/120303
        * c-parser.cc (c_parser_generic_selection): Handle error
        condition.

2025-06-09  Martin Uecker  <uecker@tugraz.at>

        PR c/120510
        * c-typeck.cc (remove_qualifiers): New function.
        (composite_type_internal): Use it.
        (comp_target_types): Use it.
        (type_lists_compatible_p): Use it.
        (find_anonymous_field_with_type): Use it.
        (convert_to_anonymous_field): Use it.
        (convert_for_assignment): Use it.

2025-06-09  Martin Uecker  <uecker@tugraz.at>

        PR c/120510
        * c-typeck.cc (composite_type_internal): Activate checking
        assertion for arrays.
        (common_pointer_type): Remove qualifiers also from arrays.

2025-06-09  Martin Uecker  <uecker@tugraz.at>

        PR c/120510
        * c-typeck.cc (composite_types_internal): Handle arrays
        declared with atomic for function arguments.

2025-06-03  Martin Uecker  <uecker@tugraz.at>

        * c-typeck.cc (composite_type_internal,composite_type): Move
        checking assertions.

2025-06-03  Martin Uecker  <uecker@tugraz.at>

        PR c/116892
        * c-decl.cc (finish_enum): Propagate TYPE_PACKED.

2025-06-02  Sandra Loosemore  <sloosemore@baylibre.com>

        * c-parser.cc (c_parser_omp_context_selector): Call
        convert_lvalue_to_rvalue and c_objc_common_truthvalue_conversion
        on the expression for OMP_TRAIT_PROPERTY_BOOL_EXPR.

2025-06-01  Martin Uecker  <uecker@tugraz.at>

        PR c/120380
        * c-objc-common.cc (get_aka_type): Ignore attributes for tagged types.

2025-05-30  Qing Zhao  <qing.zhao@oracle.com>

        PR c/120354
        * c-decl.cc (finish_struct): Or the results for TYPE_INCLUDES_FLEXARRAY.

2025-05-30  Qing Zhao  <qing.zhao@oracle.com>

        PR c/120353
        * c-decl.cc (finish_struct): Copy TYPE_INCLUDES_FLEXARRAY marking
        to all the variant types of the current structure type.

2025-05-30  Julian Brown  <julian@codesourcery.com>

        * c-decl.cc (c_omp_mapper_id, c_omp_mapper_decl, c_omp_mapper_lookup,
        c_omp_extract_mapper_directive, c_omp_map_array_section,
        c_omp_scan_mapper_bindings_r, c_omp_scan_mapper_bindings): New
        functions.
        * c-objc-common.h (LANG_HOOKS_OMP_FINISH_MAPPER_CLAUSES,
        LANG_HOOKS_OMP_MAPPER_LOOKUP, LANG_HOOKS_OMP_EXTRACT_MAPPER_DIRECTIVE,
        LANG_HOOKS_OMP_MAP_ARRAY_SECTION): Define langhooks for C.
        * c-parser.cc (c_parser_omp_clause_map): Add declare_mapper_p
        parameter; handle mapper modifier.
        (c_parser_omp_all_clauses): Update call to c_parser_omp_clause_map.
        (c_parser_omp_target): Instantiate explicit mappers and record bindings
        for implicit mappers.
        (c_parser_omp_declare_mapper): Parse "declare mapper" directives.
        (c_parser_omp_declare): Support "declare mapper".
        (c_parser_omp_declare_reduction): Use inform not error_at.
        * c-tree.h (c_omp_finish_mapper_clauses, c_omp_mapper_lookup,
        c_omp_extract_mapper_directive, c_omp_map_array_section,
        c_omp_mapper_id, c_omp_mapper_decl, c_omp_scan_mapper_bindings,
        c_omp_instantiate_mappers): Add prototypes.
        * c-typeck.cc (c_finish_omp_clauses): Handle GOMP_MAP_PUSH_MAPPER_NAME
        and GOMP_MAP_POP_MAPPER_NAME.
        (c_omp_finish_mapper_clauses): New function (langhook).

2025-05-30  Martin Uecker  <uecker@tugraz.at>

        PR c/120381
        * c-typeck.cc (composite_type_internal): Stop recursion for
        swapped pairs.

2025-05-29  Sandra Loosemore  <sloosemore@baylibre.com>

        * c-parser.cc (c_parser_skip_to_closing_brace): New, copied from
        the equivalent function in the C++ front end.
        (c_parser_skip_to_end_of_block_or_statement): Pass false to
        the error flag.
        (c_parser_omp_context_selector): Immediately return error_mark_node
        after giving an error that the integer trait property is invalid,
        similarly to C++ front end.
        (c_parser_omp_context_selector_specification): Likewise handle
        error return from c_parser_omp_context_selector similarly to C++.
        (c_parser_omp_metadirective): Do not call
        c_parser_skip_to_end_of_block_or_statement after an error.

2025-05-29  Sandra Loosemore  <sloosemore@baylibre.com>

        PR c/120180
        * c-parser.cc (c_parser_omp_metadirective): Only consume the
        token if it is the expected close paren.

2025-05-27  Jakub Jelinek  <jakub@redhat.com>

        PR c/117025
        * c-parser.cc (c_parser_sizeof_or_countof_expression): Use
        C2Y rather than C23 in pedwarn_c23.

2025-05-27  Alejandro Colomar  <alx@kernel.org>

        PR c/117025
        * c-parser.cc (c_parser_sizeof_or_countof_expression):
        Add -Wpedantic diagnostic for _Countof in <= C23 mode.

2025-05-27  Alejandro Colomar  <alx@kernel.org>
            Martin Uecker  <uecker@tugraz.at>

        PR c/117025
        * c-tree.h (in_countof): Add global variable declaration.
        (c_expr_countof_expr): Add function prototype.
        (c_expr_countof_type): Add function prototype.
        * c-decl.cc (start_struct, finish_struct): Add support for
        _Countof.
        (start_enum, finish_enum): Add support for _Countof.
        * c-parser.cc (c_parser_sizeof_expression): New macro.
        (c_parser_countof_expression): New macro.
        (c_parser_sizeof_or_countof_expression): Rename function and add
        support for _Countof.
        (c_parser_unary_expression): Add RID_COUNTOF entry.
        * c-typeck.cc (in_countof): Add global variable.
        (build_external_ref): Add support for _Countof.
        (record_maybe_used_decl): Add support for _Countof.
        (pop_maybe_used): Add support for _Countof.
        (is_top_array_vla): New function.
        (c_expr_countof_expr, c_expr_countof_type): New functions.

2025-05-02  Jakub Jelinek  <jakub@redhat.com>

        PR c/120057
        * c-typeck.cc (check_constexpr_init): Handle RAW_DATA_CST.

2025-05-02  Florian Weimer  <fweimer@redhat.com>

        PR c/120055
        * c-typeck.cc (convert_arguments): Check if fundecl is null
        before checking for builtin function declaration.

2025-05-01  Christopher Bazley  <chris.bazley@arm.com>

        PR c/119317
        * c-decl.cc (c_get_loop_names): Do not prematurely
        end the search for a label that names a loop or
        switch statement upon encountering a DEBUG_BEGIN_STMT.
        Instead, ignore any instances of DEBUG_BEGIN_STMT.

2025-05-01  Florian Weimer  <fweimer@redhat.com>

        PR c/119950
        * c-typeck.cc (convert_arguments): Check for built-in
        function declaration before warning.

2025-04-28  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.cc: Drop include of "make-unique.h".
        Replace uses of ::make_unique with std::make_unique.
        * c-objc-common.cc: Likewise.
        * c-parser.cc: Likewise.

2025-04-28  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.cc: Include "make-unique.h".
        (lookup_name_fuzzy): Use ::make_unique rather than "new" when
        making suggest_missing_header and suggest_missing_option.
        * c-parser.cc: Include "make-unique.h"
        (c_parser_error_richloc): Use ::make_unique rather than "new" when
        making suggest_missing_header.

2025-04-28  Andrew Pinski  <quic_apinski@quicinc.com>

        PR c/119432
        * gimple-parser.cc (gimple_binary_identifier_code): Add
        __ROTATE_LEFT and __ROTATE_RIGHT.

2025-04-28  Andrew Pinski  <quic_apinski@quicinc.com>

        * gimple-parser.cc (gimple_binary_identifier_code): New variable.
        (c_parser_gimple_binary_expression): Use gimple_binary_identifier_code
        instead of doing if statements on the strings.

2025-04-27  H.J. Lu  <hjl.tools@gmail.com>

        PR c/48274
        PR middle-end/112877
        PR middle-end/118288
        * c-decl.cc (start_decl): Remove the
        targetm.calls.promote_prototypes call.
        (store_parm_decls_oldstyle): Likewise.
        (finish_function): Likewise.
        * c-typeck.cc (convert_argument): Likewise.
        (c_safe_arg_type_equiv_p): Likewise.

2025-04-15  Qing Zhao  <qing.zhao@oracle.com>

        PR c/119717
        * c-typeck.cc (build_access_with_size_for_counted_by): Fully fold the
        parameters for call to .ACCESS_WITH_SIZE.

2025-04-08  Martin Uecker  <uecker@tugraz.at>

        PR c/119612
        * c-tree.h (c_type_tag): Add prototype.
        * c-typeck.cc (c_type_tag): New function.
        (tagged_types_tu_compatible_p, composite_type_internal): Use
        c_type_tag.
        * c-decl.cc (c_struct_hasher::hash, previous_tag): Use c_type_tag.

2025-04-02  Jakub Jelinek  <jakub@redhat.com>

        PR c/119582
        * c-typeck.cc (pointer_diff, build_binary_op): Call c_fully_fold on
        __sanitizer_ptr_sub or __sanitizer_ptr_cmp arguments.

2025-04-02  Sandra Loosemore  <sloosemore@baylibre.com>

        PR middle-end/118965
        * c-parser.cc (c_parser_omp_clause_init_modifiers): Adjust
        error message.
        (c_parser_omp_clause_init): Remove code for recognizing clauses
        without modifiers.  Diagnose missing target/targetsync modifier.
        (c_finish_omp_declare_variant): Diagnose missing target/targetsync
        modifier.

2025-03-28  Jakub Jelinek  <jakub@redhat.com>

        * Make-lang.in (c.srcextra): Don't depend on anything and don't copy
        anything.

2025-03-27  Martin Uecker  <uecker@tugraz.at>

        PR c/118765
        * c-decl.cc (merge_decls): For TYPE_DECLS copy
        DECL_ORIGINAL_TYPE from the old declaration.
        * c-typeck.cc (tagged_types_tu_compatible_p): Add
        checking assertions.

2025-03-21  Paul-Antoine Arras  <parras@baylibre.com>
            Tobias Burnus  <tburnus@baylibre.com>

        * c-parser.cc (c_parser_omp_clause_destroy): Make addressable.
        (c_parser_omp_clause_init): Make addressable.

2025-03-19  Jakub Jelinek  <jakub@redhat.com>

        PR c/119350
        * c-typeck.cc (pop_init_level): Don't ignore empty brackets for
        flag_isoc23, still set constructor_type to NULL in that case but
        emit a pedwarn_init in that case.

2025-03-19  Martin Uecker  <uecker@tugraz.at>

        PR c/118765
        * c-decl.cc (finish_struct,finish_enum): Swap direction when
        copying TYPE_STRUB_DECL in redefinitions.

2025-03-19  Martin Uecker  <uecker@tugraz.at>

        PR c/118061
        * c-typeck.cc (tagged_types_tu_compatible_p): Handle
        errors in types of struct members.

2025-03-18  Jakub Jelinek  <jakub@redhat.com>

        PR c/119311
        * c-parser.cc (c_parser_if_body): Pass result of c_parser_all_labels
        as last argument to c_parser_statement_after_labels.
        (c_parser_else_body): Likewise.

2025-03-18  Jakub Jelinek  <jakub@redhat.com>

        PR c/116545
        * c-parser.cc (c_parser_declaration_or_fndef): Parse
        __attribute__((musttail)) return.
        (c_parser_handle_musttail): Diagnose attribute arguments.
        (c_parser_statement_after_labels): Parse
        __attribute__((musttail)) return.

2025-03-11  Jakub Jelinek  <jakub@redhat.com>

        PR c/117178
        * c-typeck.cc (output_init_element): Pass field to digest_init
        only for record/union types, otherwise pass constructor_fields
        if non-NULL and constructor_decl if constructor_fields is NULL.

2025-03-11  Sandra Loosemore  <sloosemore@baylibre.com>

        PR c/118579
        * c-parser.cc (c_parser_omp_variable_list): Capture location
        information when KIND is OMP_CLAUSE_ERROR.
        (c_parser_oacc_data_clause_deviceptr): Use the improved location
        for diagnostics, and remove the FIXME.
        (c_finish_omp_declare_variant): Likewise.
        (c_parser_omp_threadprivate): Likewise.

2025-03-07  Kees Cook  <kees@kernel.org>
            Jakub Jelinek  <jakub@redhat.com>

        PR c/117178
        * c-typeck.cc (digest_init): Add DECL argument.  Adjust wording of
        pedwarn_init for too long strings and provide details on the lengths,
        for string literals where just the trailing NULL doesn't fit warn for
        warn_cxx_compat with OPT_Wc___compat, wording which mentions "for C++"
        and provides details on lengths, otherwise for
        warn_unterminated_string_initialization adjust the warning, provide
        details on lengths and don't warn if get_attr_nonstring_decl (decl).
        (build_c_cast, store_init_value, output_init_element): Adjust
        digest_init callers.

2025-03-07  Andrew Pinski  <quic_apinski@quicinc.com>

        PR c/60440
        * c-typeck.cc (c_finish_return): Mark the current function
        for supression of the -Wreturn-type if there was an error
        on the return statement.

2025-02-26  Jakub Jelinek  <jakub@redhat.com>

        PR c/119001
        * c-typeck.cc (pop_init_level): Don't clear constructor_type
        if DECL_CHAIN of constructor_fields is NULL but p->type is UNION_TYPE.
        Formatting fix.
        (process_init_element): Diagnose non-static initialization of flexible
        array member in union or FAM in union initialization in nested context.

2025-02-25  Jakub Jelinek  <jakub@redhat.com>

        PR c/119000
        * c-parser.cc (c_parser_omp_atomic): For omp write call
        default_function_array_read_conversion on the rhs expression.
        Merge the two adjacent if (code == NOP_EXPR) blocks.

2025-02-11  Sandra Loosemore  <sloosemore@baylibre.com>

        * c-parser.cc (c_finish_omp_declare_variant): Update call to
        omp_check_context_selector.
        (c_parser_omp_metadirective): Likewise.

2025-02-07  Jakub Jelinek  <jakub@redhat.com>
            Jason Merrill  <jason@redhat.com>

        PR c++/86769
        * c-parser.cc (c_parser_while_statement): Add 2 further NULL_TREE
        operands to build_stmt.
        (c_parser_for_statement): Likewise.

2025-02-04  Richard Biener  <rguenther@suse.de>

        PR c/118742
        * gimple-parser.cc (gimple_parser_build_unary_op): New
        wrapper around build_unary_op.
        (c_parser_gimple_unary_expression): Use it.

2025-01-30  Tobias Burnus  <tburnus@baylibre.com>

        * c-parser.cc (c_finish_omp_declare_variant): Modify how
        append_args is saved internally.

2025-01-28  Jakub Jelinek  <jakub@redhat.com>

        PR c/116357
        * c-decl.cc (grokdeclarator): Use c_build_qualified_type with
        TYPE_UNQUALIFIED instead of TYPE_MAIN_VARIANT.

2025-01-25  Jakub Jelinek  <jakub@redhat.com>

        PR c/118639
        * c-parser.cc (c_parser_omp_variable_list): Remove first variable
        and emit "expected identifier" error regardless of it.

2025-01-23  Jakub Jelinek  <jakub@redhat.com>

        PR c++/118604
        * c-parser.cc (c_parser_omp_metadirective): Rewrite
        condition for clauses other than when, default and otherwise.

2025-01-21  Jakub Jelinek  <jakub@redhat.com>

        * c-decl.cc (names_builtin_p): Return 1 for RID_C23_VA_START and
        RID_VA_ARG.

2025-01-16  Sandra Loosemore  <sloosemore@baylibre.com>

        * c-parser.cc (c_parser_omp_assumption_clauses): Give a more specific
        error message for invalid directives vs unknown names.

2025-01-16  Sandra Loosemore  <sloosemore@baylibre.com>

        * c-decl.cc (c_decl_attributes): Don't add "omp declare target
        block".

2025-01-16  Sandra Loosemore  <sloosemore@baylibre.com>
            Kwok Cheung Yeung  <kcy@codesourcery.com>
            Sandra Loosemore  <sandra@codesourcery.com>

        PR middle-end/112779
        PR middle-end/113904
        * c-parser.cc (struct c_parser): Add omp_metadirective_state field.
        (c_parser_skip_to_end_of_block_or_statement): Add metadirective_p
        parameter and handle skipping over the parentheses in a "for"
        statement.
        (struct omp_metadirective_parse_data): New.
        (mangle_metadirective_region_label): New.
        (c_parser_label): Mangle label names in a metadirective body.
        (c_parser_statement_after_labels): Likewise.
        (c_parser_pragma): Handle PRAGMA_OMP_METADIRECTIVE.
        (c_parser_omp_context_selector): Allow arbitrary expressions in
        device_num and condition properties.
        (c_parser_omp_assumption_clauses): Handle C_OMP_DIR_META.
        (analyze_metadirective_body): New.
        (c_parser_omp_metadirective): New.

2025-01-14  Sandra Loosemore  <sloosemore@baylibre.com>
            Kwok Cheung Yeung  <kcy@codesourcery.com>
            Sandra Loosemore  <sandra@codesourcery.com>
            Marcel Vollweiler  <marcel@codesourcery.com>

        PR middle-end/114596
        PR middle-end/112779
        PR middle-end/113904
        * c-parser.cc (c_finish_omp_declare_variant): Update for changes
        to omp-general.h interfaces.

2025-01-14  David Malcolm  <dmalcolm@redhat.com>

        PR c/116871
        * c-typeck.cc (pedwarn_permerror_init): Return bool for whether a
        warning was emitted.  Only call print_spelling if we warned.
        (pedwarn_init): Return bool for whether a warning was emitted.
        (permerror_init): Likewise.
        (warning_init): Return bool for whether a
        warning was emitted.  Only call print_spelling if we warned.
        (class pp_element_quoted_decl): New.
        (maybe_inform_typedef_location): New.
        (convert_for_assignment): For OPT_Wincompatible_pointer_types,
        move auto_diagnostic_group to cover all cases.  Use %e and
        pp_element rather than %qT and tree to colorize the types.
        Capture whether a warning was emitted, and, if it was,
        show various notes: for a pointer to a function, show the
        function decl, for typedef types, and show the decls.

2025-01-12  David Malcolm  <dmalcolm@redhat.com>

        PR c/118112
        * c-typeck.cc (inform_declaration): Add "function_expr" param and
        use it for cases where we couldn't show the function decl to show
        field decls for callbacks.
        (build_function_call_vec): Add missing auto_diagnostic_group.
        Update for new param of inform_declaration.
        (convert_arguments): Likewise.  For the "too many arguments" case
        add the expected vs actual counts to the message, and if we have
        it, add the location_t of the first surplus param as a secondary
        location within the diagnostic.  For the "too few arguments" case,
        determine the minimum number of arguments required and add the
        expected vs actual counts to the message, tweaking it to "at least"
        for variadic functions.

2025-01-10  Jakub Jelinek  <jakub@redhat.com>

        PR c/118376
        * c-parser.cc (c_parser_postfix_expression): Call
        set_c_expr_source_range before break in the __builtin_stdc_rotate_*
        case.

2025-01-09  Martin Uecker  <uecker@tugraz.at>

        PR c/117866
        * c-decl.cc (get_parm_info): Change condition for warning.

2025-01-09  Jason Merrill  <jason@redhat.com>
            Torbjörn SVENSSON  <torbjorn.svensson@foss.st.com>

        PR c/116060
        * c-typeck.cc (convert_for_assignment): Make sure left hand side and
        right hand side has identical named types to aid diagnostic output.

2025-01-03  Sandra Loosemore  <sloosemore@baylibre.com>

        * c-parser.cc (struct c_parser): Change in_omp_attribute_pragma
        field to be of type struct omp_attribute_pragma_state.
        (struct omp_attribute_pragma_state): New.
        (c_parser_skip_until_found): Use the new way to restore state
        on EOF.
        (c_parser_skip_to_pragma_eol): Likewise.
        (c_parser_handle_statement_omp_attributes): Create an
        omp_attribute_pragma_state to hold the restore state.  Do not
        store state in tok.flags.
        (omp_maybe_parse_omp_decl): Likewise.

2025-01-02  David Malcolm  <dmalcolm@redhat.com>

        PR c/117629
        * c-decl.cc (declspecs_add_type): Special-case attempts to use
        bool as a typedef name or declaration name.
        * c-errors.cc (get_std_for_keyword): New.
        (add_note_about_new_keyword): New.
        * c-parser.cc (report_bad_enum_name): New, split out from...
        (c_parser_enum_specifier): ...here, adding handling for RID_FALSE
        and RID_TRUE.
        * c-tree.h (add_note_about_new_keyword): New decl.

2024-12-18  Tobias Burnus  <tburnus@baylibre.com>

        * c-parser.cc (c_parser_omp_clause_init_modifiers): New;
        split of from ...
        (c_parser_omp_clause_init): ... here; call it.
        (c_finish_omp_declare_variant): Parse 'append_args' clause.
        (c_parser_omp_clause_interop): Set tree used/read.

2024-12-18  Jakub Jelinek  <jakub@redhat.com>

        PR c/41045
        * c-typeck.cc (build_asm_expr): Reject - constraint modifier inside
        of a function.

2024-12-18  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.cc (build_asm_expr): Diagnose invalid ":" constraint
        uses.

2024-12-12  Tobias Burnus  <tburnus@baylibre.com>

        * c-parser.cc (OMP_DISPATCH_CLAUSE_MASK): Add has_device_addr clause.
        (c_finish_omp_declare_variant): Add an 'inform' telling the user that
        'need_device_addr' is invalid for C.

2024-12-09  Heiko Eißfeldt  <heiko@hexco.de>

        PR c/114541
        * gimple-parser.cc (c_parser_gimple_parse_bb_spec):
        Use strtoul with ERANGE check instead of atoi to avoid UB
        and detect invalid __BB#.

2024-12-06  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.cc: Include "gcc-urlifier.h".
        (start_decl): Use auto_urlify_attributes with OPT_Wattributes.
        (start_function): Likewise.
        * c-parser.cc: Include "gcc-urlifier.h".
        (c_parser_statement_after_labels): Use auto_urlify_attributes with
        OPT_Wattributes.
        * c-typeck.cc: Include "gcc-urlifier.h".
        (maybe_warn_nodiscard): Use auto_urlify_attributes with
        OPT_Wunused_result.

2024-12-06  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_get_builtin_args, c_parser_expression,
        c_parser_expr_list): Use RAW_DATA_UCHAR_ELT macro.
        * c-typeck.cc (digest_init): Use RAW_DATA_UCHAR_ELT and
        RAW_DATA_SCHAR_ELT macros.
        (add_pending_init, maybe_split_raw_data): Use RAW_DATA_UCHAR_ELT
        macro.

2024-12-05  Jakub Jelinek  <jakub@redhat.com>

        PR c/107980
        * c-parser.cc (c_parser_postfix_expression): Handle RID_C23_VA_START.

2024-12-05  Jakub Jelinek  <jakub@redhat.com>

        PR c/41045
        * c-parser.cc (c_parser_asm_string_literal): Add forward declaration.
        (c_parser_asm_definition): Parse also extended asm without
        clobbers/labels.
        * c-typeck.cc (build_asm_expr): Allow extended asm outside of
        functions and check extra restrictions.

2024-12-03  Tobias Burnus  <tburnus@baylibre.com>

        * c-parser.cc (c_parser_omp_allocate): Only check scope if
        not in_omp_decl_attribute. Remove setting the alignment.

2024-11-30  Martin Uecker  <uecker@tugraz.at>

        PR c/117806
        * c-typeck.cc (composite_type_internal): Call decl_attributes.

2024-11-30  Andrew Pinski  <quic_apinski@quicinc.com>

        PR c/117749
        * gimple-parser.cc (c_parser_gimple_declaration): Check
        declarator to be non-null.

2024-11-29  Martin Uecker  <uecker@tugraz.at>

        PR c/117828
        * c-typeck.cc (tagged_types_tu_compatible_p): Add check.

2024-11-29  Tejas Belagod  <tejas.belagod@arm.com>

        * c-typeck.cc (process_init_element): Add check to restrict
        constructor length to the minimum vector length allowed.

2024-11-28  Jakub Jelinek  <jakub@redhat.com>

        PR c++/116416
        * c-parser.cc (c_parser_braced_init): Set CONSTRUCTOR_ZERO_PADDING_BITS
        for flag_isoc23 empty initializers.
        * c-typeck.cc (constructor_zero_padding_bits): New variable.
        (struct constructor_stack): Add zero_padding_bits member.
        (really_start_incremental_init): Save and clear
        constructor_zero_padding_bits.
        (push_init_level): Save constructor_zero_padding_bits.  Or into it
        CONSTRUCTOR_ZERO_PADDING_BITS from previous value if implicit.
        (pop_init_level): Set CONSTRUCTOR_ZERO_PADDING_BITS if
        constructor_zero_padding_bits and restore
        constructor_zero_padding_bits.

2024-11-28  David Malcolm  <dmalcolm@redhat.com>

        PR c/82892
        * c-decl.cc (lookup_name_fuzzy): Provide hints for missing
        command-line options.

2024-11-28  David Malcolm  <dmalcolm@redhat.com>

        PR c++/87850
        * c-typeck.cc (compatible_types_for_indirection_note_p): New
        function.
        (convert_for_assignment): Call maybe_emit_indirection_note for
        pointer vs non-pointer diagnostics.

2024-11-27  Joseph Myers  <josmyers@redhat.com>

        PR c/91193
        * c-parser.cc (c_parser_maybe_reclassify_token): Define earlier.
        (c_parser_declaration_or_fndef): Call
        c_parser_maybe_reclassify_token before parsing old-style parameter
        definitions.

2024-11-27  Jakub Jelinek  <jakub@redhat.com>

        PR c/117745
        * c-parser.cc (c_parser_sizeof_expression): If type_name is NULL,
        just expr.set_error () and goto sizeof_expr instead of doing error
        recovery manually.

2024-11-27  Joseph Myers  <josmyers@redhat.com>

        PR c/117781
        * c-parser.cc (c_parser_typeof_specifier): Do not remove _Atomic
        from array element type for typeof_unqual.

2024-11-27  Florian Weimer  <fweimer@redhat.com>

        * c-parser.cc (c_parser_compound_statement_nostart): Use
        OPT_Wfree_labels for warning about labels on declarations.
        (c_parser_compound_statement_nostart): Use OPT_Wfree_labels
        for warning about labels at end of compound statements.

2024-11-26  David Malcolm  <dmalcolm@redhat.com>

        PR c/94370
        * c-typeck.cc (c_build_functype_attribute_variant): Reword
        warning message to avoid double-negative.

2024-11-26  Joseph Myers  <josmyers@redhat.com>

        PR c/98195
        PR c/117755
        * c-typeck.cc (build_atomic_assign): Always create a TARGET_EXPR
        for newval even in case of error from binary operation.
        (build_modify_expr): Check early for incomplete type of rhs.

2024-11-24  Andrew Pinski  <quic_apinski@quicinc.com>

        PR c/117741
        * gimple-parser.cc (c_parser_gimple_compound_statement): Handle
        CPP_CLOSE_PAREN/CPP_CLOSE_SQUARE with an error and skipping the token.

2024-11-22  Andrew Pinski  <quic_apinski@quicinc.com>

        PR bootstrap/117737
        * c-aux-info.cc (INCLUDE_MEMORY): Remove.
        * c-convert.cc (INCLUDE_MEMORY): Remove.
        * c-decl.cc (INCLUDE_MEMORY): Remove.
        * c-errors.cc (INCLUDE_MEMORY): Remove.
        * c-fold.cc (INCLUDE_MEMORY): Remove.
        * c-lang.cc (INCLUDE_MEMORY): Remove.
        * c-objc-common.cc (INCLUDE_MEMORY): Remove.
        * c-parser.cc (INCLUDE_MEMORY): Remove.
        * c-typeck.cc (INCLUDE_MEMORY): Remove.
        * gimple-parser.cc (INCLUDE_MEMORY): Remove.

2024-11-22  Joseph Myers  <josmyers@redhat.com>

        PR c/112841
        * c-parser.cc (c_parser_typeof_specifier): Call strip_array_types
        when checking for type qualifiers for typeof_unqual.

2024-11-22  Tobias Burnus  <tburnus@baylibre.com>

        * c-parser.cc (c_parser_omp_clause_interop): New.
        (c_parser_omp_clause_name, c_parser_omp_all_clauses,
        c_parser_omp_dispatch_body): Handle 'interop' clause.
        * c-typeck.cc (c_finish_omp_clauses): Likewise.

2024-11-22  Tobias Burnus  <tburnus@baylibre.com>

        * c-parser.cc (INCLUDE_STRING): Define.
        (c_parser_pragma): Handle 'interop' directive.
        (c_parser_omp_clause_name): Handle init, use, and destroy clauses.
        (c_parser_omp_all_clauses): Likewise; use C_ORT_OMP_INTEROP, if
        'use' is permitted, for c_finish_omp_clauses.
        (c_parser_omp_clause_destroy, c_parser_omp_modifier_prefer_type,
        c_parser_omp_clause_init, c_parser_omp_clause_use,
        OMP_INTEROP_CLAUSE_MASK, c_parser_omp_interop): New.
        * c-typeck.cc (c_finish_omp_clauses): Add missing OPT_Wopenmp to
        a warning; handle new clauses.

2024-11-21  Joseph Myers  <josmyers@redhat.com>

        PR c/114816
        * c-decl.cc (grokparms): Do not warn for void parameter type here.
        (get_parm_info): Give errors for void parameters even when named.

2024-11-20  Joseph Myers  <josmyers@redhat.com>

        PR c/114266
        * c-decl.cc (build_compound_literal): Diagnose array of unknown
        size with empty initializer for C23.

2024-11-20  Paul-Antoine Arras  <parras@baylibre.com>

        * c-parser.cc (c_parser_omp_dispatch): New function.
        (c_parser_omp_clause_name): Handle nocontext and novariants clauses.
        (c_parser_omp_clause_novariants): New function.
        (c_parser_omp_clause_nocontext): Likewise.
        (c_parser_omp_all_clauses): Handle nocontext and novariants clauses.
        (c_parser_omp_dispatch_body): New function adapted from
        c_parser_expr_no_commas.
        (OMP_DISPATCH_CLAUSE_MASK): Define.
        (c_parser_omp_dispatch): New function.
        (c_finish_omp_declare_variant): Parse adjust_args.
        (c_parser_omp_construct): Handle PRAGMA_OMP_DISPATCH.
        * c-typeck.cc (c_finish_omp_clauses): Handle OMP_CLAUSE_NOVARIANTS and
        OMP_CLAUSE_NOCONTEXT.

2024-11-20  Joseph Myers  <josmyers@redhat.com>

        PR c/115515
        * c-typeck.cc (check_constexpr_init): Do not call int_fits_type_p
        for arguments that are not integer constant expressions.

2024-11-19  Joseph Myers  <josmyers@redhat.com>

        PR c/114869
        * c-decl.cc (c_init_decl_processing): Register nullptr_type_node
        as typeof (nullptr) not nullptr_t.

2024-11-19  Jakub Jelinek  <jakub@redhat.com>

        PR c/117456
        * c-parser.cc (c_parser_postfix_expression): Use LROTATE_EXPR
        or RROTATE_EXPR only if type_has_mode_precision_p or if arg1
        has BITINT_TYPE with precision larger than MAX_FIXED_MODE_SIZE.
        Otherwise build BIT_IOR_EXPR of LSHIFT_EXPR and RSHIFT_EXPR
        and wrap it into a COND_EXPR depending on if arg2 is 0 or not.
        * c-fold.cc (c_fully_fold_internal): Check for suppression of
        -Wshift-count-overflow warning.

2024-11-19  Martin Uecker  <uecker@tugraz.at>

        PR c/117490
        * c-typeck.cc (tagged_types_tu_compatible): Form equivalence
        classed for tagless types in C23.

2024-11-18  Joseph Myers  <josmyers@redhat.com>

        PR c/112556
        * c-typeck.cc (convert_for_assignment): Allow conversion of
        ENUMERAL_TYPE and BOOLEAN_TYPE null pointer constants to pointers.

2024-11-17  Florian Weimer  <fweimer@redhat.com>

        PR c/95445
        * c-decl.cc (start_function): Warn about parameters
        after parameter-less declaration.
        * c-typeck.cc (build_function_call_vec): Pass fntype
        to convert_arguments.
        (convert_arguments): Change argument to fntype and
        compute typelist.  Warn about parameter list mismatches
        on first parameter.

2024-11-16  Martin Uecker  <uecker@tugraz.at>

        PR c/117548
        * c-decl.cc (finish_struct): Add checking assertion.
        * c-typeck.cc (c_type_original): New function.
        (composite_types_internal): Get tag from original type.

2024-11-15  Florian Weimer  <fweimer@redhat.com>

        * c-decl.cc (store_parm_decls_newstyle): Use
        OPT_Wmissing_parameter_name for missing parameter name
        warning.
        * c-errors.cc (pedwarn_c11): Enable fine-grained warning
        control via the option_id argument.

2024-11-15  Jakub Jelinek  <jakub@redhat.com>

        * c-tree.h (enum c_typespec_keyword): Add cts_dfloat64x and adjust
        comment.
        * c-parser.cc (c_keyword_starts_typename, c_token_starts_declspecs,
        c_parser_declspecs, c_parser_gnu_attribute_any_word): Handle
        RID_DFLOAT64X.
        (c_parser_postfix_expression): Handle _Decimal64x arguments in
        __builtin_tgmath.
        (warn_for_abs): Handle BUILT_IN_FABSD64X.
        * c-decl.cc (declspecs_add_type): Handle cts_dfloat64x and
        RID_DFLOAT64X.
        (finish_declspecs): Handle cts_dfloat64x.
        * c-typeck.cc (c_common_type): Handle dfloat64x_type_node.

2024-11-13  Martin Uecker  <uecker@tugraz.at>

        PR c/117059
        * c-typeck.cc (parse_build_binary_op): Add warning.
        (build_conditional_expr): Add warning.
        (convert_for_assignment): Add warning.

2024-11-11  Jakub Jelinek  <jakub@redhat.com>

        * c-decl.cc (names_builtin_p): Change return type from
        bool to int, adjust return statments.

2024-11-09  Martin Uecker  <uecker@tugraz.at>

        PR c/116284
        PR c/117391
        * c-tree.h (c_type_unspecified_p): New inline function.
        * c-typeck.cc (c_build_array_type_unspecified): New function.
        (comptypes_interal): Remove useless code.
        (composite_type_internal): Update.
        * c-decl.cc (grokdeclarator): Revise.

2024-11-08  Marek Polacek  <polacek@redhat.com>

        PR c/117019
        * c-parser.cc (c_parser_declaration_or_fndef): Adjust declaration.
        (c_parser_external_declaration): Adjust a call to
        c_parser_declaration_or_fndef.
        (c_parser_declaration_or_fndef): New bool parameter.  Return a tree
        instead of void.  Adjust for N3356.  Adjust a call to
        c_parser_declaration_or_fndef.
        (c_parser_compound_statement_nostart): Adjust calls to
        c_parser_declaration_or_fndef.
        (c_parser_selection_header): New.
        (c_parser_paren_selection_header): New.
        (c_parser_if_statement): Call c_parser_paren_selection_header
        instead of c_parser_paren_condition.
        (c_parser_switch_statement): Call c_parser_selection_header instead of
        c_parser_expression.
        (c_parser_for_statement): Adjust calls to c_parser_declaration_or_fndef.
        (c_parser_objc_methodprotolist): Likewise.
        (c_parser_oacc_routine): Likewise.
        (c_parser_omp_loop_nest): Likewise.
        (c_parser_omp_declare_simd): Likewise.

2024-11-05  Andrew Pinski  <quic_apinski@quicinc.com>

        PR c/117445
        * gimple-parser.cc (c_parser_gimple_statement): Remove
        support for comparisons before the querry (`?`) token.

2024-11-01  David Malcolm  <dmalcolm@redhat.com>

        PR bootstrap/117361
        * Make-lang.in (s-selftest-c): Use GCC_FOR_SELFTESTS.
        (selftest-c-gdb): Likewise.
        (selftest-c-valgrind): Likewise.

2024-10-31  Martin Uecker  <uecker@tugraz.at>

        PR c/117145
        PR c/117245
        PR c/100420
        * c-decl.cc (c_build_pointer_type): Move to c-typeck.cc
        (grokdeclarator): Simplify logic.
        (match_builtin_function_types): Adapt.
        (push_decl): Adapt.
        (implicitly_declare): Adapt.
        (c_update_type_canonical): Adapt.
        (c_make_fname_decl): Adapt.
        (start_function): Adapt.
        * c-objc-common.h: Add LANG_HOOKS_RECONSTRUCT_COMPLEX_TYPE.
        * c-tree.h: Add prototypes.
        * c-typeck.cc (c_verify_type): New function.
        (c_set_type_bits). New function.
        (c_build_pointer_type): Moved from c-decl.cc.
        (c_build_pointer_type_for_mode): New function.
        (c_build_function_type): New function.
        (c_build_array_type): New function.
        (c_build_type_attribute_variant): New function.
        (c_reconstruct_complex_type): New function.
        (c_build_functype_attribute_variant): Renamed.
        (array_to_pointer_conversion): Simplify logic.
        (composite_type_internal): Simplify logic..
        (build_unary_op): Simplify logic..
        (comptypes_verify): Add checking assertions.
        (c_build_qualified_type): Add checking assertions.
        (c_build_function_call_vec): Adapt.
        (qualify_type): Adapt.
        (build_functype_attribute_variant): Adapt.
        (common_pointer_type): Adapt.
        (c_common_type): Adapt.
        (convert_for_assignment): Adapt.
        (type_or_builtin_type): Adapt.
        (build_access_with_size_for_counted_by): Adapt.
        (build_conditional_expr): Adapt.
        (build_modify_expr): Adapt.
        (build_binary_op): Adapt.
        (build_omp_array_section): Adapt.
        (handle_omp_array_sections): Adapt.
        (c_finish_omp_clauses): Adapt.
        * c-parser.cc (c_parser_typeof_specifier): Adapt.
        (c_parser_generic_selection): Adapt.

2024-10-30  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_postfix_expression): Diagnose if
        first __builtin_stdc_* argument has char type even when
        -funsigned-char.

2024-10-29  David Malcolm  <dmalcolm@redhat.com>

        PR other/116613
        * c-objc-common.cc: Include "make-unique.h".
        (c_initialize_diagnostics): Use unique_ptr for pretty_printer.
        Use context->set_format_decoder.

2024-10-29  Jakub Jelinek  <jakub@redhat.com>

        PR c/117030
        * c-parser.cc: Include asan.h and c-family/c-ubsan.h.
        (c_parser_postfix_expression): Handle __builtin_stdc_rotate_left
        and __builtin_stdc_rotate_right.
        * c-fold.cc (c_fully_fold_internal): Handle LROTATE_EXPR and
        RROTATE_EXPR.

2024-10-25  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.cc: Remove trailing whitespace.
        * gimple-parser.cc: Likewise.
        * c-parser.cc: Likewise.
        * c-decl.cc: Likewise.

2024-10-24  David Malcolm  <dmalcolm@redhat.com>
            Gaius Mulley  <gaiusmod2@gmail.com>

        PR other/116613
        * c-aux-info.cc: Add #define INCLUDE_MEMORY.
        * c-convert.cc: Likewise.
        * c-errors.cc: Likewise.
        * c-fold.cc: Likewise.
        * c-lang.cc: Likewise.
        * c-objc-common.cc: Likewise.
        (pp_markup::element_quoted_type::print_type): Use unique_ptr.
        * c-typeck.cc: Add #define INCLUDE_MEMORY.
        * gimple-parser.cc: Likewise.

2024-10-23  Joseph Myers  <josmyers@redhat.com>

        * c-decl.cc (c_struct_parse_info): Add member refloc.
        (start_struct): Store refloc in struct_parse_info.
        (finish_struct): Give "originally defined" message for C23 struct
        redefinition errors.

2024-10-22  Jakub Jelinek  <jakub@redhat.com>

        PR c/117190
        * c-parser.cc (c_parser_initval): Revert 2024-10-17 changes.
        Instead peek the 4th token and if it is not CPP_NUMBER,
        handle it like 3rd token CPP_CLOSE_BRACE for orig_len == INT_MAX.
        Also, check (2 + 2 * i)th raw token for the orig_len == INT_MAX
        case and punt if it is not CPP_NUMBER.

2024-10-19  Joseph Myers  <josmyers@redhat.com>

        * c-tree.h (c_arg_info): Add c23_empty_parens.
        * c-decl.cc (grokparms): Set c23_empty_parens.
        (build_arg_info): Clear c23_empty_parens.
        (store_parm_decls_newstyle): Do not give -Wtraditional warning for
        ISO C function definition if c23_empty_parens.

2024-10-18  Alejandro Colomar  <alx@kernel.org>

        * c-decl.cc (one_element_array_type_p, get_parm_array_spec)
        * c-fold.cc (c_fold_array_ref):
        Rename array_type_nelts => array_type_nelts_minus_one

2024-10-17  Jakub Jelinek  <jakub@redhat.com>

        PR c/117177
        * c-parser.cc (c_parser_initval): Instead of doing
        orig_len == INT_MAX checks before consuming tokens to set
        last = 1, check it after consuming it and if not followed
        by CPP_COMMA CPP_NUMBER, call process_init_element once
        more with the last CPP_NUMBER.

2024-10-16  Jakub Jelinek  <jakub@redhat.com>

        * c-decl.cc (c_get_loop_names): Add checking assert that
        c is non-NULL in the loop.
        (c_finish_bc_name): Likewise.

2024-10-16  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_expression): Initialize next.original_type
        to integer_type_node for the CPP_EMBED case.

2024-10-16  Jakub Jelinek  <jakub@redhat.com>

        * c-tree.h (c_maybe_optimize_large_byte_initializer): Declare.
        * c-parser.cc (c_parser_initval): Attempt to optimize large char array
        initializers into RAW_DATA_CST.
        * c-typeck.cc (c_maybe_optimize_large_byte_initializer): New function.

2024-10-16  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_braced_init): Handle CPP_EMBED.
        (c_parser_get_builtin_args): Likewise.
        (c_parser_expression): Likewise.
        (c_parser_expr_list): Likewise.
        * c-typeck.cc (digest_init): Handle RAW_DATA_CST.  Formatting fix.
        (init_node_successor): New function.
        (add_pending_init): Handle RAW_DATA_CST.
        (set_nonincremental_init): Formatting fix.
        (output_init_element): Handle RAW_DATA_CST.  Formatting fixes.
        (maybe_split_raw_data): New function.
        (process_init_element): Use maybe_split_raw_data.  Handle
        RAW_DATA_CST.

2024-10-15  Qing Zhao  <qing.zhao@oracle.com>

        PR c/116016
        * c-decl.cc (names_builtin_p): Add RID_BUILTIN_COUNTED_BY_REF.
        * c-parser.cc (has_counted_by_object): New routine.
        (get_counted_by_ref): New routine.
        (c_parser_postfix_expression): Handle New RID_BUILTIN_COUNTED_BY_REF.
        * c-tree.h: New routine handle_counted_by_for_component_ref.
        * c-typeck.cc (handle_counted_by_for_component_ref): New routine.
        (build_component_ref): Call the new routine.

2024-10-15  Jakub Jelinek  <jakub@redhat.com>

        PR c/117022
        * c-tree.h: Implement C2Y N3355 - Named loops.
        (C_DECL_LOOP_NAME, C_DECL_SWITCH_NAME, C_DECL_LOOP_SWITCH_NAME_VALID,
        C_DECL_LOOP_SWITCH_NAME_USED, IN_NAMED_STMT): Define.
        (c_get_loop_names, c_release_loop_names, c_finish_bc_name): Declare.
        (c_start_switch): Add NAME argument.
        (c_finish_bc_stmt): Likewise.
        * c-lang.h (struct language_function): Add loop_names and
        loop_names_hash members.
        * c-parser.cc (c_parser_external_declaration,
        c_parser_declaration_or_fndef, c_parser_struct_or_union_specifier,
        c_parser_parameter_declaration): Adjust c_parser_pragma caller.
        (get_before_labels): New function.
        (c_parser_compound_statement_nostart): Call get_before_labels when
        needed, adjust c_parser_pragma and c_parser_statement_after_labels
        callers.
        (c_parser_statement): Call get_before_labels first and pass it to
        c_parser_statement_after_labels.
        (c_parser_bc_name): New function.
        (c_parser_statement_after_labels): Add BEFORE_LABELS argument.  Pass
        it down to c_parser_switch_statement, c_parser_while_statement,
        c_parser_do_statement, c_parser_for_statement and c_parser_pragma.
        Call c_parser_bc_name for RID_BREAK and RID_CONTINUE and pass it as
        another argument to c_finish_bc_stmt.
        (c_parser_if_body, c_parser_else_body): Call get_before_labels
        early and pass it to c_parser_statement_after_labels.
        (c_parser_switch_statement): Add BEFORE_LABELS argument.  Call
        c_get_loop_names, if named, pass switch_name to c_start_switch,
        mark it valid and set IN_NAMED_STMT bit in in_statement before
        parsing body, otherwise clear IN_NAMED_STMT bit before that parsing.
        Run c_release_loop_names at the end.
        (c_parser_while_statement, c_parser_do_statement,
        c_parser_for_statement): Add BEFORE_LABELS argument.  Call
        c_get_loop_names, if named, mark it valid and set IN_NAMED_STMT bit
        in in_statement before parsing body, otherwise clear IN_NAMED_STMT
        before that parsing, arrange for the loop name if used to be
        another *_STMT argument.
        (c_parser_objc_class_instance_variables,
        c_parser_objc_methodprotolist): Adjust c_parser_pragma callers.
        (c_parser_pragma): Add BEFORE_LABELS argument.  Pass it down to
        c_parser_for_statement, c_parser_while_statement or
        c_parser_do_statement.
        (c_parser_omp_loop_nest, c_maybe_parse_omp_decl): Adjust
        c_parser_pragma callers.
        * c-decl.cc (loop_names, loop_names_hash): New static variables.
        (add_stmt): Set STATEMENT_LIST_HAS_LABEL after push_stmt_list rather
        than before it.
        (c_push_function_context): Save and clear loop_names and
        loop_names_hash.
        (c_pop_function_context): Release or delete, restore and clear
        loop_names and loop_names_hash.
        (c_get_loop_names, c_release_loop_names, c_finish_bc_name): New
        functions.
        * c-typeck.cc (c_start_switch): Add SWITCH_NAME argument, pass it down
        to build_stmt.
        (c_finish_bc_stmt): Add NAME argument.  Mark of IN_NAMED_STMT bit
        of in_statement in swtiches.  Use label for IN_OBJC_FOREACH only if
        name is NULL.  If name is non-NULL and C_DECL_LOOP_NAME and
        C_DECL_SWITCH_NAME are both set, assume outer ObjC foreach and
        dig labels from DECL_CHAIN of name.  Pass NAME to build_stmt
        otherwise.

2024-10-07  qing zhao  <qing.zhao@oracle.com>

        PR c/116735
        * c-decl.cc (verify_counted_by_attribute): Remove the attribute
        when error.

2024-10-07  Tobias Burnus  <tburnus@baylibre.com>

        * c-parser.cc (c_parser_omp_allocate): Set alignment for alignof;
        accept static variables and fix predef allocator check.

2024-09-25  Tobias Burnus  <tburnus@baylibre.com>

        * c-parser.cc (c_parser_omp_declare_target): Set target-used bit
        in omp_requires_mask.

2024-09-24  Tobias Burnus  <tburnus@baylibre.com>

        * c-parser.cc (c_parser_omp_requires): Handle self_maps clause.

2024-09-20  Martin Uecker  <uecker@tugraz.at>

        PR c/116726
        * c-typeck.cc (tagged_types_tu_compatible_p): Restore value
        of the cache after recursing into comptypes_internal.

2024-09-09  David Malcolm  <dmalcolm@redhat.com>

        * c-errors.cc (pedwarn_c23): Use "diagnostic_option_id option_id"
        rather than "int opt".  Update for renaming of diagnostic_info
        field.
        (pedwarn_c11): Likewise.
        (pedwarn_c99): Likewise.
        (pedwarn_c90): Likewise.
        * c-tree.h (pedwarn_c90): Likewise for decl.
        (pedwarn_c99): Likewise.
        (pedwarn_c11): Likewise.
        (pedwarn_c23): Likewise.

2024-09-09  David Malcolm  <dmalcolm@redhat.com>

        PR other/116613
        * c-objc-common.cc (c_initialize_diagnostics): Rename
        diagnostic_context's "printer" field to "m_printer".

2024-09-06  Jason Merrill  <jason@redhat.com>

        PR c++/46457
        PR c++/81665
        * c-objc-common.h (c_objc_attribute_table): Add
        c_common_clang_attribute_table.

2024-09-03  David Malcolm  <dmalcolm@redhat.com>

        * c-objc-common.cc (print_type): Prefix all output_buffer fields
        with "m_".

2024-09-02  Richard Sandiford  <richard.sandiford@arm.com>

        * c-typeck.cc (build_asm_expr): Rename ASM_INPUT_P to ASM_BASIC_P.

2024-08-31  Jakub Jelinek  <jakub@redhat.com>

        PR c/116130
        * c-decl.cc (handle_std_unsequenced_attribute): New function.
        (handle_std_reproducible_attribute): Likewise.
        (std_attributes): Add entries for "unsequenced" and "reproducible"
        attributes.
        (c_warn_type_attributes): Add TYPE argument.  Allow unsequenced
        or reproducible attributes if it is FUNCTION_TYPE.
        (groktypename): Adjust c_warn_type_attributes caller.
        (grokdeclarator): Likewise.
        (finish_declspecs): Likewise.
        * c-parser.cc (c_parser_declaration_or_fndef): Likewise.
        * c-tree.h (c_warn_type_attributes): Add TYPE argument.

2024-08-29  David Malcolm  <dmalcolm@redhat.com>

        * c-objc-common.cc (c_tree_printer): Convert final param from
        const char ** to pp_token_list &.

2024-08-02  Martin Uecker  <uecker@tugraz.at>

        * c-decl.cc (grokdeclarator, finish_struct): Set and
        propagate TYPE_TYPELESS_STORAGE.

2024-07-23  Andi Kleen  <ak@linux.intel.com>

        PR c/83324
        * c-parser.cc (struct attr_state): Define with musttail_p.
        (c_parser_statement_after_labels): Handle [[musttail]].
        (c_parser_std_attribute): Dito.
        (c_parser_handle_musttail): Dito.
        (c_parser_compound_statement_nostart): Dito.
        (c_parser_all_labels): Dito.
        (c_parser_statement): Dito.
        * c-tree.h (c_finish_return): Add musttail_p flag.
        * c-typeck.cc (c_finish_return): Handle musttail_p flag.

2024-07-20  Andi Kleen  <ak@gcc.gnu.org>

        Revert:
        2024-07-20  Andi Kleen  <ak@linux.intel.com>

        PR c/83324
        * c-parser.cc (struct attr_state): Define with musttail_p.
        (c_parser_statement_after_labels): Handle [[musttail]].
        (c_parser_std_attribute): Dito.
        (c_parser_handle_musttail): Dito.
        (c_parser_compound_statement_nostart): Dito.
        (c_parser_all_labels): Dito.
        (c_parser_statement): Dito.
        * c-tree.h (c_finish_return): Add musttail_p flag.
        * c-typeck.cc (c_finish_return): Handle musttail_p flag.

2024-07-20  Andi Kleen  <ak@linux.intel.com>

        PR c/83324
        * c-parser.cc (struct attr_state): Define with musttail_p.
        (c_parser_statement_after_labels): Handle [[musttail]].
        (c_parser_std_attribute): Dito.
        (c_parser_handle_musttail): Dito.
        (c_parser_compound_statement_nostart): Dito.
        (c_parser_all_labels): Dito.
        (c_parser_statement): Dito.
        * c-tree.h (c_finish_return): Add musttail_p flag.
        * c-typeck.cc (c_finish_return): Handle musttail_p flag.

2024-07-14  Alejandro Colomar  <alx@kernel.org>

        PR c/115185
        * c-typeck.cc (digest_init): Separate warnings about character
        arrays being initialized as unterminated character sequences
        with string literals, from -Wc++-compat, into a new warning,
        -Wunterminated-string-initialization.

2024-07-13  David Malcolm  <dmalcolm@redhat.com>

        * c-objc-common.cc: Include "tree-pretty-print-markup.h".
        (print_type): Add optional "highlight_color" param and use it
        to show highlight colors in "aka" text.
        (pp_markup::element_quoted_type::print_type): New.
        * c-typeck.cc: Include "tree-pretty-print-markup.h".
        (comp_parm_types): New.
        (build_function_call_vec): Pass it to check_function_arguments.
        (inform_for_arg): Use %e and highlight colors to contrast actual
        versus expected.
        (convert_for_assignment): Use highlight_colors::actual for the
        rhs_label.
        (build_binary_op): Use highlight_colors::lhs and highlight_colors::rhs
        for the ranges.

2024-07-10  Marek Polacek  <polacek@redhat.com>

        PR c/115642
        * c-typeck.cc (c_cast_expr): Return error_mark_node if build_c_cast
        failed.

2024-07-10  Marek Polacek  <polacek@redhat.com>

        PR c/115549
        * c-decl.cc (c_decl_attributes): If lookup_last_decl returns
        error_mark_node, use NULL_TREE as last_decl.

2024-07-09  Martin Uecker  <uecker@tugraz.at>

        PR c/114727
        * c-typeck.cc (tagged_types_tu_compatible): Add test.

2024-07-09  Martin Uecker  <uecker@tugraz.at>

        PR c/115696
        * c-typeck.cc (comptypes_verify): Bail out for
        identical, empty, and erroneous input types.

2024-07-09  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_omp_tile_sizes): Use c_parser_expr_list.

2024-06-27  Martin Uecker  <uecker@tugraz.at>

        * c-parser.cc (c_parser_direct_declarator_inner): Add
        error message.

2024-06-26  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.cc (c_parser_require): Pass *global_dc to
        gcc_rich_location::add_location_if_nearby.

2024-06-25  Sandra Loosemore  <sloosemore@baylibre.com>

        PR c/115587
        * c-parser.cc (c_parser_omp_loop_nest): Move initializations to
        point of declaration.

2024-06-25  Jakub Jelinek  <jakub@redhat.com>
            Martin Uecker  <uecker@tugraz.at>

        PR c/114930
        PR c/115502
        * c-decl.cc (c_update_type_canonical): Assert t is main variant
        with 0 TYPE_QUALS.  Simplify and don't use check_qualified_type.
        Deal with the case where build_qualified_type returns
        TYPE_STRUCTURAL_EQUALITY_P type.

2024-06-18  Martin Uecker  <uecker@tugraz.at>

        PR c/115109
        * c-decl.cc (build_enumerator): When redeclaring an
        enumerator convert value to previous type.  For redeclared
        enumerators use underlying type for computing the next value.

2024-06-13  Joseph Myers  <josmyers@redhat.com>

        * c-typeck.cc (build_unary_op): Use pedwarn_c23 for complex
        increment and decrement.

2024-06-12  David Malcolm  <dmalcolm@redhat.com>

        * c-objc-common.cc (print_type): Update for fields of
        pretty_printer becoming private.
        (c_tree_printer): Likewise.

2024-06-11  Joseph Myers  <josmyers@redhat.com>

        * c-errors.cc (pedwarn_c23): New.
        * c-parser.cc (disable_extension_diagnostics)
        (restore_extension_diagnostics): Save and restore
        warn_c23_c2y_compat.
        (c_parser_generic_selection): Handle type name as controlling
        operand.  Allow incomplete and function types subject to
        pedwarn_c23 calls.
        * c-tree.h (pedwarn_c23): New.

2024-06-06  Jakub Jelinek  <jakub@redhat.com>

        PR c/114493
        * c-decl.cc (c_fixup_may_alias): New function.
        (finish_struct): Call it if "may_alias" attribute is
        specified.

2024-06-05  Jakub Jelinek  <jakub@redhat.com>
            Frederik Harwath  <frederik@codesourcery.com>
            Sandra Loosemore  <sandra@codesourcery.com>

        * c-parser.cc (c_parser_skip_std_attribute_spec_seq): New function.
        (check_omp_intervening_code): Reject imperfectly nested tile.
        (c_parser_compound_statement_nostart): If want_nested_loop, use
        c_parser_omp_next_tokens_can_be_canon_loop instead of just checking
        for RID_FOR keyword.
        (c_parser_omp_clause_name): Handle full and partial clause names.
        (c_parser_omp_clause_allocate): Remove spurious semicolon.
        (c_parser_omp_clause_full, c_parser_omp_clause_partial): New
        functions.
        (c_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_FULL and
        PRAGMA_OMP_CLAUSE_PARTIAL.
        (c_parser_omp_next_tokens_can_be_canon_loop): New function.
        (c_parser_omp_loop_nest): Parse C23 attributes.  Handle tile/unroll
        constructs.  Use c_parser_omp_next_tokens_can_be_canon_loop instead
        of just checking for RID_FOR keyword.  Only add_stmt (body) if it is
        non-NULL.
        (c_parser_omp_for_loop): Rename tiling variable to oacc_tiling.  For
        OMP_CLAUSE_SIZES set collapse to list length of OMP_CLAUSE_SIZES_LIST.
        Use c_parser_omp_next_tokens_can_be_canon_loop instead of just
        checking for RID_FOR keyword.  Remove spurious semicolon.  Don't call
        c_omp_check_loop_binding_exprs if stmt is NULL.  Skip generated loops.
        (c_parser_omp_tile_sizes, c_parser_omp_tile): New functions.
        (OMP_UNROLL_CLAUSE_MASK): Define.
        (c_parser_omp_unroll): New function.
        (c_parser_omp_construct): Handle PRAGMA_OMP_TILE and
        PRAGMA_OMP_UNROLL.
        * c-typeck.cc (c_finish_omp_clauses): Adjust wording of some of the
        conflicting clause diagnostic messages to include word clause.
        Handle OMP_CLAUSE_{FULL,PARTIAL,SIZES} and diagnose full vs. partial
        conflict.

2024-05-31  Qing Zhao  <qing.zhao@oracle.com>

        * c-typeck.cc (build_access_with_size_for_counted_by): Add the 6th
        argument to .ACCESS_WITH_SIZE.

2024-05-31  Qing Zhao  <qing.zhao@oracle.com>

        * c-parser.cc (c_parser_postfix_expression): Ignore the counted-by
        attribute when build_component_ref inside offsetof operator.
        * c-tree.h (build_component_ref): Add one more parameter.
        * c-typeck.cc (build_counted_by_ref): New function.
        (build_access_with_size_for_counted_by): New function.
        (build_component_ref): Check the counted-by attribute and build
        call to .ACCESS_WITH_SIZE.
        (build_unary_op): When building ADDR_EXPR for
        .ACCESS_WITH_SIZE, use its first argument.
        (lvalue_p): Accept call to .ACCESS_WITH_SIZE.
        (digest_init): Fold call to .ACCESS_WITH_SIZE to its first
        argument when require_constant is TRUE.

2024-05-31  Qing Zhao  <qing.zhao@oracle.com>

        * c-decl.cc (flexible_array_member_type_p): Renamed and moved to...
        (add_flexible_array_elts_to_size): Use renamed function.
        (is_flexible_array_member_p): Use renamed function.
        (verify_counted_by_attribute): New function.
        (finish_struct): Use renamed function and verify counted_by
        attribute.
        * c-tree.h (lookup_field): New prototype.
        * c-typeck.cc (lookup_field): Expose as extern function.
        (tagged_types_tu_compatible_p): Check counted_by attribute for
        structure type.

2024-05-31  Martin Uecker  <uecker@tugraz.at>

        * c-decl.cc (finish_struct): Do not set TYPE_CANONICAL for
        structure or unions with variable size.
        * c-objc-common.cc (c_get_alias_set): Do not set alias set to zero.
        * c-typeck.cc (comptypes_verify): New function.
        (comptypes,comptypes_same_p,comptypes_check_enum_int): Add assertion.
        (comptypes_equiv_p): Add assertion that ensures that compatible
        types have the same equivalence class.
        (tagged_types_tu_compatible_p): Remove now unneeded special case.

2024-05-31  Martin Uecker  <uecker@tugraz.at>

        PR tree-optimization/115157
        PR tree-optimization/115177
        * c-decl.cc (shadow_tag-warned,parse_xref_tag,start_enum,
        finish_enum): Set SET_TYPE_STRUCTURAL_EQUALITY / TYPE_CANONICAL.
        * c-objc-common.cc (get_alias_set): Remove special case.
        (get_aka_type): Add special case.

2024-05-29  Martin Uecker  <uecker@tugraz.at>

        * c-typeck.cc (comptypes_internal): Add flag to track
        whether a struct is the target of a pointer.
        (tagged_types_tu_compatible): When forming equivalence
        classes, treat nested pointed-to structs as equivalent.

2024-05-28  David Malcolm  <dmalcolm@redhat.com>

        PR bootstrap/115167
        * c-objc-common.cc: Replace include of "gcc-rich-location.h" with
        "c-family/c-type-mismatch.h".
        * c-typeck.cc: Likewise.

2024-05-24  Martin Uecker  <uecker@tugraz.at>

        PR c/114831
        * c-typeck.cc (array_to_pointer_conversion, build_unary_op):
        Propagate flag to pointer target.

2024-05-15  Jakub Jelinek  <jakub@redhat.com>

        PR c/115103
        * c-typeck.cc (c_finish_omp_clauses): Diagnose grainsize
        used together with num_tasks.

2024-05-06  Qing Zhao  <qing.zhao@oracle.com>

        PR c/53548
        * c-decl.cc (add_flexible_array_elts_to_size): Handle the cases
        when the DECL is union.

2024-05-06  Qing Zhao  <qing.zhao@oracle.com>

        PR c/53548
        * c-decl.cc (finish_struct): Change errors to pedwarns for the cases
        flexible array members in union or alone in structures.

2024-04-30  Richard Biener  <rguenther@suse.de>

        * gimple-parser.cc (c_parser_gimple_binary_expression):
        Parse __{CEIL,FLOOR,ROUND}_{DIV,MOD} and __EXACT_DIV.

2024-04-19  Martin Uecker  <uecker@tugraz.at>
            Jakub Jelinek  <jakub@redhat.com>

        PR lto/114574
        PR c/114361
        * c-decl.cc (shadow_tag_warned): For flag_isoc23 and code not
        ENUMERAL_TYPE use SET_TYPE_STRUCTURAL_EQUALITY.
        (parser_xref_tag): Likewise.
        (start_struct): For flag_isoc23 use SET_TYPE_STRUCTURAL_EQUALITY.
        (c_update_type_canonical): New function.
        (finish_struct): Put NULL as second == operand rather than first.
        Assert TYPE_STRUCTURAL_EQUALITY_P.  Call c_update_type_canonical.
        * c-typeck.cc (composite_type_internal): Use
        SET_TYPE_STRUCTURAL_EQUALITY.  Formatting fix.

2024-04-09  Jakub Jelinek  <jakub@redhat.com>

        * c-decl.cc (previous_tag): Fix duplicated words in comment; the the
        -> the.
        (diagnose_mismatched_decls): Fix duplicated words in comment;
        about about -> about.

2024-04-05  Martin Uecker  <uecker@tugraz.at>

        Revert:
        2024-04-02  Martin Uecker  <uecker@tugraz.at>

        PR c/114361
        * c-decl.cc (finish_struct): Set TYPE_CANONICAL when completing
        strucute types.

2024-04-02  Martin Uecker  <uecker@tugraz.at>

        PR c/114361
        * c-decl.cc (finish_struct): Set TYPE_CANONICAL when completing
        strucute types.

2024-03-14  Chung-Lin Tang  <cltang@baylibre.com>

        * c-parser.cc (c_parser_oacc_data_clause): Add parsing support for
        'readonly' modifier, set OMP_CLAUSE_MAP_READONLY if readonly modifier
        found, update comments.
        (c_parser_oacc_cache): Add parsing support for 'readonly' modifier,
        set OMP_CLAUSE__CACHE__READONLY if readonly modifier found, update
        comments.

2024-03-08  Jakub Jelinek  <jakub@redhat.com>

        PR debug/113918
        * c-tree.h (c_type_dwarf_attribute): Declare.
        * c-objc-common.h (LANG_HOOKS_TYPE_DWARF_ATTRIBUTE): Redefine.
        * c-objc-common.cc: Include dwarf2.h.
        (c_type_dwarf_attribute): New function.

2024-02-26  Jakub Jelinek  <jakub@redhat.com>

        PR c/114042
        * c-parser.cc (c_parser_postfix_expression): Diagnose
        __builtin_stdc_bit_* argument with ENUMERAL_TYPE or BOOLEAN_TYPE
        type or if signed here rather than on the replacement builtins
        in check_builtin_function_arguments.

2024-02-22  Jakub Jelinek  <jakub@redhat.com>

        PR c/114007
        * c-parser.cc (c_parser_std_attribute): Remove loose_scope_p argument.
        Instead of checking it, parse 2 CPP_COLONs with the first one with
        COLON_SCOPE flag the same as CPP_SCOPE.
        (c_parser_std_attribute_list): Remove loose_scope_p argument, don't
        pass it to c_parser_std_attribute.
        (c_parser_std_attribute_specifier): Adjust c_parser_std_attribute_list
        caller.

2024-02-13  Tobias Burnus  <tburnus@baylibre.com>

        PR middle-end/113904
        * c-parser.cc (c_parser_omp_context_selector): Handle splitting of
        OMP_TRAIT_PROPERTY_EXPR into OMP_TRAIT_PROPERTY_{DEV_NUM,BOOL}_EXPR.

2024-02-10  Jakub Jelinek  <jakub@redhat.com>

        * c-decl.cc (get_parm_array_spec): Use HOST_WIDE_INT_PRINT_UNSIGNED
        instead of "%lu" and casts to unsigned long or unsigned long long.

2024-02-08  Joseph Myers  <josmyers@redhat.com>

        PR c/113776
        * c-typeck.cc (c_objc_common_truthvalue_conversion): Return an
        integer constant expression for boolean conversion of floating
        constant.

2024-02-05  Jakub Jelinek  <jakub@redhat.com>

        PR c/113740
        * c-decl.cc (finish_struct): Only use build_bitint_type if
        bit-field has width larger or equal to minimum _BitInt
        precision.

2024-01-31  Joseph Myers  <josmyers@redhat.com>

        PR c/112571
        * c-decl.cc (start_enum): Clear ENUM_FIXED_UNDERLYING_TYPE_P when
        defining without a fixed underlying type an enumeration previously
        declared with a fixed underlying type.

2024-01-31  Martin Uecker  <uecker@tugraz.at>

        PR c/113438
        * c-typeck.cc (composite_type_internal): Set TYPE_STUB_DECL.

2024-01-31  Joseph Myers  <josmyers@redhat.com>

        PR c/111059
        PR c/111911
        * c-tree.h (c_objc_common_truthvalue_conversion): Add third
        argument.
        * c-convert.cc (c_convert): For conversions to boolean, pass third
        argument to c_objc_common_truthvalue_conversion rather than
        converting here.
        * c-typeck.cc (build_c_cast): Ensure arguments with integer
        operands are marked as such for conversion to boolean.
        (c_objc_common_truthvalue_conversion): Add third argument TYPE.

2024-01-21  Martin Uecker  <uecker@tugraz.at>

        PR c/113492
        * c-decl.cc (grokdeclarator): Use c_common_unsigned_type instead of
        unsigned_type_for to create the unsigned type for bitfields declared
        with int when using -funsigned-bitfields.

2024-01-12  Jakub Jelinek  <jakub@redhat.com>

        PR c/113315
        * c-typeck.cc (build_array_ref): If index has BITINT_TYPE type with
        precision larger than sizetype precision, convert it to sizetype.

2024-01-11  Julian Brown  <julian@codesourcery.com>

        * c-parser.cc (c_parser_braced_init, c_parser_conditional_expression):
        Don't allow OpenMP array section.
        (c_parser_postfix_expression): Don't allow array section in statement
        expression.
        (c_parser_postfix_expression_after_primary): Add support for OpenMP
        array section parsing.
        (c_parser_expr_list): Don't allow OpenMP array section here.
        (c_parser_omp_variable_list): Change ALLOW_DEREF parameter to
        MAP_LVALUE.  Support parsing of general lvalues in "map", "to" and
        "from" clauses.
        (c_parser_omp_var_list_parens): Change ALLOW_DEREF parameter to
        MAP_LVALUE.  Update call to c_parser_omp_variable_list.
        (c_parser_oacc_data_clause): Update calls to
        c_parser_omp_var_list_parens.
        (c_parser_omp_clause_reduction): Use OMP_ARRAY_SECTION tree node
        instead of TREE_LIST for array sections.
        (c_parser_omp_target): Allow GOMP_MAP_ATTACH.
        * c-tree.h (c_omp_array_section_p): Add extern declaration.
        (build_omp_array_section): Add prototype.
        * c-typeck.cc (c_omp_array_section_p): Add flag.
        (mark_exp_read): Support OMP_ARRAY_SECTION.
        (build_omp_array_section): Add function.
        (build_external_ref): Tweak error path for OpenMP array sections.
        (handle_omp_array_sections_1): Use OMP_ARRAY_SECTION tree code instead
        of TREE_LIST.  Handle more kinds of expressions.
        (c_oacc_check_attachments): Use OMP_ARRAY_SECTION instead of TREE_LIST
        for array sections.
        (c_finish_omp_clauses): Use OMP_ARRAY_SECTION instead of TREE_LIST.
        Check for supported expression types.

2024-01-09  Tamar Christina  <tamar.christina@arm.com>

        PR c/113267
        * c-parser.cc (c_parser_for_statement): Skip the pragma is no cond.

2024-01-03  Kwok Cheung Yeung  <kcy@codesourcery.com>

        * c-parser.cc (c_parser_omp_clause_name): Move handling of indirect
        clause to correspond to alphabetical order.

2023-12-30  Martin Uecker  <uecker@tugraz.at>

        * c-typeck.cc (tagged_types_tu_compatible_p): Revise.

2023-12-22  Martin Uecker  <uecker@tugraz.at>

        * c-typeck.cc (composite_type_internal): Adapted from
        composite_type to support structs and unions.
        (composite_type): New wrapper function.
        (build_conditional_operator): Return composite type.
        * c-decl.cc (finish_struct): Allow NULL for
        enclosing_struct_parse_info.

2023-12-21  Martin Uecker  <uecker@tugraz.at>

        * c-decl.cc (c_struct_hasher): Hash stable for struct
        types.
        (c_struct_hasher::hash, c_struct_hasher::equal): New
        functions.
        (finish_struct): Set TYPE_CANONICAL to first struct in
        equivalence class.
        * c-objc-common.cc (c_get_alias_set): Let structs or
        unions with variable size alias anything.
        * c-tree.h (comptypes_equiv): New prototype.
        * c-typeck.cc (comptypes_equiv): New function.
        (comptypes_internal): Implement equivalence mode.
        (tagged_types_tu_compatible): Implement equivalence mode.

2023-12-21  Martin Uecker  <uecker@tugraz.at>

        * c-tree.h (c_parser_enum_specifier): Add parameter.
        * c-decl.cc (start_enum): Allow redefinition.
        (finish_enum): Diagnose conflicts.
        (build_enumerator): Set context.
        (diagnose_mismatched_decls): Diagnose conflicting enumerators.
        (push_decl): Preserve context for enumerators.
        * c-typeck.cc (tagged_types_tu_compatible_p): Adapt.
        * c-parser.cc (c_parser_enum_specifier): Remember when
        seen is from an enum type which is not yet defined.

2023-12-21  Martin Uecker  <uecker@tugraz.at>

        * c-decl.cc (previous_tag): New function.
        (parser_xref_tag): Find earlier definition.
        (get_parm_info): Turn off warning for C23.
        (start_struct): Allow redefinitons.
        (finish_struct): Diagnose conflicts.
        * c-tree.h (comptypes_same_p): Add prototype.
        * c-typeck.cc (comptypes_same_p): New function.
        (comptypes_internal): Activate comparison of tagged types.
        (convert_for_assignment): Ignore qualifiers.
        (digest_init): Add error.
        (initialized_elementwise_p): Allow compatible types.

2023-12-20  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_postfix_expression_after_primary): Grow
        sizeof_arg and sizeof_arg_loc arrays to 6 elements.  Call
        warn_for_calloc if warn_calloc_transposed_args for functions with
        alloc_size type attribute with 2 arguments.
        (c_parser_expr_list): Use 6 instead of 3.
        * c-typeck.cc (build_c_cast): Call warn_for_alloc_size for casts
        of calls to functions with alloc_size type attribute.
        (convert_for_assignment): Likewise.

2023-12-19  Sandra Loosemore  <sandra@codesourcery.com>

        * c-parser.cc (omp_construct_selectors): Delete.
        (omp_device_selectors): Delete.
        (omp_implementation_selectors): Delete.
        (omp_user_selectors): Delete.
        (c_parser_omp_context_selector): Adjust for new representations
        and simplify dispatch logic.  Uniformly warn instead of sometimes
        error when an unknown selector is found.  Adjust error messages
        for extraneous/incorrect score.
        (c_parser_omp_context_selector_specification): Likewise.
        (c_finish_omp_declare_variant): Adjust for new representations.

2023-12-19  Sandra Loosemore  <sandra@codesourcery.com>

        * c-parser.cc (c_parser_omp_context_selector): Adjust for new
        namelist property representation.

2023-12-19  Sandra Loosemore  <sandra@codesourcery.com>

        * c-parser.cc (c_parser_omp_context_selector): Use new constructors.

2023-12-18  Richard Biener  <rguenther@suse.de>

        PR c/111975
        * gimple-parser.cc (c_parser_gimple_postfix_expression):
        Parse TARGET_MEM_REF extended operands for __MEM.

2023-12-13  Jason Merrill  <jason@redhat.com>

        * c-typeck.cc (convert_for_assignment): Adjust call to
        warn_for_address_of_packed_member.

2023-12-13  Julian Brown  <julian@codesourcery.com>

        * c-parser.cc (c_parser_oacc_all_clauses): Add TARGET_P parameter. Use
        to select region type for c_finish_omp_clauses call.
        (c_parser_oacc_loop): Update calls to c_parser_oacc_all_clauses.
        (c_parser_oacc_compute): Likewise.
        (c_parser_omp_target_data, c_parser_omp_target_enter_data): Support
        ATTACH kind.
        (c_parser_omp_target_exit_data): Support DETACH kind.
        (check_clauses): Handle GOMP_MAP_POINTER and GOMP_MAP_ATTACH here.
        * c-typeck.cc (handle_omp_array_sections_1,
        handle_omp_array_sections, c_finish_omp_clauses): Use
        c_omp_address_inspector class and OMP address tokenizer to analyze and
        expand map clause expressions.  Fix some diagnostics.  Fix "is OpenACC"
        condition for C_ORT_ACC_TARGET addition.

2023-12-13  Julian Brown  <julian@codesourcery.com>

        * c-typeck.cc (c_finish_omp_clauses): Add braces and reindent
        OMP_CLAUSE_TO/OMP_CLAUSE_FROM/OMP_CLAUSE__CACHE_ stanza.

2023-12-11  Martin Uecker  <uecker@tugraz.at>

        PR c/112488
        * c-decl.cc (add_decl_expr): Revise.
        (finish_struct): Create DECL_EXPR.
        * c-parser.cc (c_parser_struct_or_union_specifier): Call
        finish_struct with expression for VLA sizes.
        * c-tree.h (finish_struct): Add argument.

2023-12-11  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.cc (c_parser_omp_requires): Handle acquires/release
        in atomic_default_mem_order clause.
        (c_parser_omp_atomic): Update.

2023-12-05  Richard Sandiford  <richard.sandiford@arm.com>

        * c-decl.cc (std_attribute_table): Add extra braces to work
        around PR 16333 in older compilers.

2023-12-05  Richard Biener  <rguenther@suse.de>

        PR c/86869
        * c-typeck.cc (c_build_qualified_type): Preserve address-space
        info for ARRAY_TYPE.

2023-12-02  Richard Sandiford  <richard.sandiford@arm.com>

        * c-tree.h (std_attribute_table): Declare.
        * c-decl.cc (std_attribute_table): Change type to
        scoped_attribute_specs, using...
        (std_attributes): ...this as the underlying array.
        (c_init_decl_processing): Remove call to register_scoped_attributes.
        * c-objc-common.h (c_objc_attribute_table): New global.
        (LANG_HOOKS_ATTRIBUTE_TABLE): Use it.
        (LANG_HOOKS_COMMON_ATTRIBUTE_TABLE): Delete.
        (LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE): Delete.

2023-12-01  Florian Weimer  <fweimer@redhat.com>

        PR other/44209
        * c-decl.cc (grokparms): Issue permerror for
        OPT_Wdeclaration_missing_parameter_type instead of a pedwarn.

2023-12-01  Florian Weimer  <fweimer@redhat.com>

        PR c/96284
        * c-typeck.cc (build_conditional_expr): Upgrade most pointer
        type mismatches to a permerror.
        (convert_for_assignment): Use permerror_opt and
        permerror_init for OPT_Wincompatible_pointer_types warnings.

2023-12-01  Florian Weimer  <fweimer@redhat.com>

        PR c/96284
        * c-typeck.cc (c_finish_return): Use permerrors
        for OPT_Wreturn_mismatch diagnostics.

2023-12-01  Florian Weimer  <fweimer@redhat.com>

        * c-decl.cc (grokdeclarator): Do not skip -Wimplicit-int
        warnings or errors in system headers.

2023-12-01  Florian Weimer  <fweimer@redhat.com>

        * c-decl.cc (warn_defaults_to): Remove.
        (grok_declarator, start_function): Call permerror_opt
        instead of warn_defaults_to.
        (store_parm_decls_oldstyle): Call permerror_opt for
        OPT_Wimplicit_int.

2023-12-01  Florian Weimer  <fweimer@redhat.com>

        PR c/91092
        PR c/96284
        * c-decl.cc (implicit_decl_permerror): Rename from
        implicit_decl_warning.  Call permerror_opt instead of
        pedwarn and warning_at.
        (implicitly_declare): Adjust callers.

2023-12-01  Florian Weimer  <fweimer@redhat.com>

        PR c/96284
        PR c/106416
        * c-typeck.cc (build_conditional_expr): Use permerror_opt for
        pointer/integer type mismatches, based on -Wint-conversion.
        (pedwarn_permerror_init, permerror_init): New function.
        (pedwarn_init): Call pedwarn_permerror_init.
        (convert_for_assignment): Use permerror_opt and
        permerror_init for -Wint-conversion warnings.

2023-11-29  Alexandre Oliva  <oliva@adacore.com>

        * c-typeck.cc (convert_lvalue_to_rvalue): Decay hardbools.
        * c-convert.cc (convert): Convert to hardbool through
        truthvalue.
        * c-decl.cc (check_bitfield_type_and_width): Skip enumeral
        truncation warnings for hardbool.
        (finish_struct): Propagate hardbool attribute to bitfield
        types.
        (digest_init): Convert to hardbool.

2023-11-28  Jason Merrill  <jason@redhat.com>

        PR c++/94264
        PR c++/53220
        * c-typeck.cc (array_to_pointer_conversion): Adjust -Wc++-compat
        diagnostic.

2023-11-28  Richard Biener  <rguenther@suse.de>

        PR middle-end/112741
        * gimple-parser.cc (c_parser_parse_gimple_body): Also
        set DECL_SEEN_IN_BIND_EXPR_Pfor locals.

2023-11-27  Alex Coplan  <alex.coplan@arm.com>
            Iain Sandoe  <iain@sandoe.co.uk>

        PR c++/60512
        * c-lang.cc (c_family_register_lang_features): New.
        * c-objc-common.cc (struct c_feature_info): New.
        (c_register_features): New.
        * c-objc-common.h (c_register_features): New.

2023-11-24  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.cc (c_parser_omp_clause_num_threads,
        c_parser_omp_clause_num_tasks, c_parser_omp_clause_grainsize,
        c_parser_omp_clause_priority, c_parser_omp_clause_schedule,
        c_parser_omp_clause_num_teams, c_parser_omp_clause_thread_limit,
        c_parser_omp_clause_dist_schedule, c_parser_omp_depobj,
        c_parser_omp_scan_loop_body, c_parser_omp_assumption_clauses):
        Add OPT_Wopenmp to warning_at.

2023-11-24  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.cc (c_parser_omp_depobj): Accept optionally an argument
        to the destroy clause.

2023-11-23  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_postfix_expression): Handle RID_BUILTIN_STDC.
        * c-decl.cc (names_builtin_p): Likewise.

2023-11-14  Jakub Jelinek  <jakub@redhat.com>

        PR c/111309
        * c-typeck.cc (convert_arguments): Don't promote first argument
        of BUILT_IN_{CLZ,CTZ,CLRSB,FFS,PARITY,POPCOUNT}G.

2023-11-10  Martin Uecker  <uecker@tugraz.at>

        * c-typeck.cc (struct comptypes_data): Add anon_field flag.
        (comptypes, comptypes_check_unum_int,
        comptypes_check_different_types): Remove old cache.
        (tagged_tu_types_compatible_p): Rewrite.

2023-11-09  Florian Weimer  <fweimer@redhat.com>

        * c-typeck.cc (c_finish_return): Use pedwarn with
        OPT_Wreturn_mismatch for missing/extra return expressions.

2023-11-07  Kwok Cheung Yeung  <kcy@codesourcery.com>

        * c-decl.cc (c_decl_attributes): Add attribute for indirect
        functions.
        * c-lang.h (c_omp_declare_target_attr): Add indirect field.
        * c-parser.cc (c_parser_omp_clause_name): Handle indirect clause.
        (c_parser_omp_clause_indirect): New.
        (c_parser_omp_all_clauses): Handle indirect clause.
        (OMP_DECLARE_TARGET_CLAUSE_MASK): Add indirect clause to mask.
        (c_parser_omp_declare_target): Handle indirect clause.  Emit error
        message if device_type or indirect clauses used alone.  Emit error
        if indirect clause used with device_type that is not 'any'.
        (OMP_BEGIN_DECLARE_TARGET_CLAUSE_MASK): Add indirect clause to mask.
        (c_parser_omp_begin): Handle indirect clause.
        * c-typeck.cc (c_finish_omp_clauses): Handle indirect clause.

2023-11-07  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.cc: Use flag_isoc23 instead of flag_isoc2x and c23_auto_p
        instead of c2x_auto_p.  Refer to C23 instead of C2X in diagnostics
        and comments.
        * c-errors.cc: Use flag_isoc23 instead of flag_isoc2x and
        warn_c11_c23_compat instead of warn_c11_c2x_compat.  Refer to C23
        instead of C2X in comments.
        * c-parser.cc: Use flag_isoc23 instead of flag_isoc2x,
        warn_c11_c23_compat instead of warn_c11_c2x_compat, c23_auto_p
        instead of c2x_auto_p and D_C23 instead of D_C2X.  Refer to C23
        instead of C2X in diagnostics and comments.
        * c-tree.h: Refer to C23 instead of C2X in comments.
        (struct c_declspecs): Rename c2x_auto_p to c23_auto_p.
        * c-typeck.cc: Use flag_isoc23 instead of flag_isoc2x and
        warn_c11_c23_compat instead of warn_c11_c2x_compat.  Refer to C23
        instead of C2X in diagnostics and comments.

2023-11-06  Joseph Myers  <joseph@codesourcery.com>

        PR c/107954
        * c-errors.cc (pedwarn_c11): Use OPT_Wc11_c23_compat instead of
        OPT_Wc11_c2x_compat.
        * c-typeck.cc (build_conditional_expr, convert_for_assignment):
        Use OPT_Wc11_c23_compat instead of OPT_Wc11_c2x_compat.

2023-11-04  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.h (c_maybe_parse_omp_decl): Declare.
        * c-parser.cc (struct c_parser): Add in_omp_decl_attribute member.
        (c_parser_std_attribute): Uncoment omp::decl handling.
        (c_parser_omp_var_list_parens): If parser->in_omp_decl_attribute
        don't expect any arguments, instead create clause or TREE_LIST for
        that decl.
        (c_maybe_parse_omp_decl): New function.
        (c_parser_omp_declare_target): If parser->in_omp_decl_attribute and
        first token isn't name or comma invoke c_parser_omp_var_list_parens.
        * c-decl.cc (c_decl_attributes): Uncomment omp::decl handling and
        use *node rather than non-existing *decl.

2023-11-04  Jakub Jelinek  <jakub@redhat.com>

        * c-tree.def: New file.
        * c-tree.h (struct c_tree_token_vec): Forward declare.
        (c_tree_size): Declare.
        * c-lang.h (struct c_omp_declare_target_attr): Add attr_syntax member.
        (struct c_omp_begin_assumes_data): New type.
        (current_omp_begin_assumes): Change type from int to
        vec<c_omp_begin_assumes_data, va_gc> *.
        * c-lang.cc: Include c-family/c-pragma.h and c-parser.h.
        * c-parser.h (struct c_tree_token_vec_struct): New type.
        (C_TOKEN_VEC_TOKENS): New macro.
        * c-parser.cc (struct c_parser): Add omp_attrs_forbidden_p and
        in_omp_attribute_pragma members.
        (c_parser_skip_until_found): Handle CPP_PRAGMA_EOL when
        parser->in_omp_attribute_pragma.
        (c_parser_skip_to_pragma_eol): Likewise.
        (c_parser_translation_unit): Adjust for current_omp_begin_assumes
        being a vector rather than counter.
        (c_parser_declaration_or_fndef): Handle omp::directive and
        omp::sequence attributes on attribute declaration and declare simd
        or declare variant directives in those on function declarations.
        (c_parser_check_balanced_raw_token_sequence): Forward declare.
        (c_parser_omp_directive_args, c_parser_omp_sequence_args): New
        functions.
        (c_parser_std_attribute): Handle omp::directive and omp::sequence
        attributes.
        (struct c_omp_attribute_data): New type.
        (c_parser_handle_statement_omp_attributes,
        c_parser_handle_directive_omp_attributes): New functions.
        (c_parser_compound_statement_nostart): Handle omp::directive and
        omp::sequence attributes on statements.  Formatting fix.
        (c_parser_all_labels): Handle omp::directive and omp::sequence
        attributes on statements.
        (c_parser_statement): Clear parser->omp_attrs_forbidden_p.
        (c_parser_omp_variable_list): Handle parser->tokens
        != &parser->tokens_buf[0] by saving/restoring it.
        (c_parser_omp_structured_block): Set parser->omp_attrs_forbidden_p.
        (c_parser_omp_section_scan): New function.
        (c_parser_omp_structured_block_sequence, c_parser_omp_sections_scope):
        Use it.
        (c_parser_omp_parallel): Set parser->omp_attrs_forbidden_p.
        (c_parser_omp_task): Likewise.
        (c_parser_omp_declare_simd): Handle function declaration after
        std attributes.
        (c_finish_omp_declare_simd): Don't assert all kinds are the same.
        (c_parser_omp_declare_target): Also push attr_syntax flag.
        (c_parser_omp_begin): Likewise.  Adjust for current_omp_begin_assumes
        type change.
        (c_parser_omp_end): Adjust for current_omp_begin_assumes type
        change.  Diagnose mixing of attribute vs. pragma syntax on end assumes
        or end declare target.
        (c_parser_omp_declare_reduction): Handle parser->tokens
        != &parser->tokens_buf[0] by saving/restoring it.
        * c-decl.cc: Include c-parser.h.
        (current_omp_begin_assumes): Change type from int to
        vec<c_omp_begin_assumes_data, va_gc> *.
        (struct c_tree_token_vec): New type.  Add static assertions
        for sizeof and offsetof.
        (union lang_tree_node): Add c_token_vec member and adjust GTY
        desc for it.
        (c_tree_size): New function.
        (c_decl_attributes): Diagnose invalid omp::directive attribute
        uses.
        * c-objc-common.h (LANG_HOOKS_TREE_SIZE): Redefine.

2023-11-02  Martin Uecker  <uecker@tugraz.at>

        PR c/112347
        * c-typeck.cc (convert_for_assignment): Add missing check.

2023-11-01  Martin Uecker  <uecker@tugraz.at>

        PR c/71219
        * c-typeck.cc (convert_for_assignment): Add warning.

2023-10-26  liuhongt  <hongtao.liu@intel.com>

        * c-typeck.cc (build_vec_cmp): Pass type of arg0 to
        truth_type_for.

2023-10-25  Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.cc (c_parser_omp_clause_name): Return
        'PRAGMA_OACC_CLAUSE_SELF' for "self".
        (c_parser_oacc_data_clause, OACC_UPDATE_CLAUSE_MASK): Adjust.
        (c_parser_oacc_all_clauses): Remove 'bool compute_p' formal
        parameter, and instead locally determine whether we're called for
        an OpenACC compute construct or OpenACC 'update' directive.
        (c_parser_oacc_compute): Adjust.

2023-10-25  Chung-Lin Tang  <cltang@codesourcery.com>

        * c-parser.cc (c_parser_oacc_compute_clause_self): New function.
        (c_parser_oacc_all_clauses): Add new 'bool compute_p = false'
        parameter, add parsing of self clause when compute_p is true.
        (OACC_KERNELS_CLAUSE_MASK): Add PRAGMA_OACC_CLAUSE_SELF.
        (OACC_PARALLEL_CLAUSE_MASK): Likewise,
        (OACC_SERIAL_CLAUSE_MASK): Likewise.
        (c_parser_oacc_compute): Adjust call to c_parser_oacc_all_clauses to
        set compute_p argument to true.
        * c-typeck.cc (c_finish_omp_clauses): Add OMP_CLAUSE_SELF case.

2023-10-20  Florian Weimer  <fweimer@redhat.com>

        PR c/109827
        PR other/44209
        * c-typeck.cc (build_conditional_expr): Use OPT_Wint_conversion
        for pointer/integer mismatch warnings.

2023-10-20  Florian Weimer  <fweimer@redhat.com>

        PR c/109826
        PR other/44209
        * c-typeck.cc (build_conditional_expr): Use
        OPT_Wincompatible_pointer_types for pointer mismatches.
        Emit location information for the operand.

2023-10-19  Andrew Pinski  <pinskia@gmail.com>

        PR c/100532
        * c-typeck.cc (convert_argument): After erroring out
        about an incomplete type return error_mark_node.

2023-10-19  Andrew Pinski  <pinskia@gmail.com>

        PR c/104822
        * c-typeck.cc (convert_for_assignment): Check for null pointer
        before warning about an incompatible scalar storage order.

2023-10-18  Andrew Pinski  <pinskia@gmail.com>

        PR c/101364
        * c-decl.cc (diagnose_arglist_conflict): Test for
        error mark before calling of c_type_promotes_to.

2023-10-18  Andrew Pinski  <pinskia@gmail.com>

        PR c/101285
        * c-typeck.cc (c_safe_arg_type_equiv_p): Return true for error
        operands early.

2023-10-17  Martin Uecker  <uecker@tugraz.at>

        PR c/111708
        * c-decl.cc (grokdeclarator): Add error.

2023-10-03  David Malcolm  <dmalcolm@redhat.com>

        * c-objc-common.cc (c_tree_printer): Update for "m_" prefixes to
        text_info fields.

2023-09-30  Eugene Rozenfeld  <erozen@microsoft.com>

        * Make-lang.in: Make create_fdas_for_cc1 target not .PHONY

2023-09-20  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_postfix_expression_after_primary): Parse
        __builtin_classify_type call with typename as argument.

2023-09-19  Richard Biener  <rguenther@suse.de>

        PR c/111468
        * gimple-parser.cc (c_parser_gimple_binary_expression): Handle __LTGT.

2023-09-19  Richard Biener  <rguenther@suse.de>

        PR c/111468
        * gimple-parser.cc (c_parser_gimple_binary_expression): Add
        return type argument.
        (c_parser_gimple_statement): Adjust.
        (c_parser_gimple_paren_condition): Likewise.
        (c_parser_gimple_binary_expression): Use passed in return type,
        add support for - as POINTER_DIFF_EXPR, __UN{LT,LE,GT,GE,EQ},
        __UNORDERED and __ORDERED.

2023-09-12  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.cc (struct c_omp_loc_tree): New.
        (c_check_omp_allocate_allocator_r): New; checking moved from ...
        (c_parser_omp_allocate): ... here. Call it via walk_tree. Avoid
        ICE with tree_to_shwi for invalid too-large value.

2023-09-12  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.cc (c_parser_omp_construct): Move call to
        c_parser_omp_allocate to ...
        (c_parser_pragma): ... here.
        (c_parser_omp_allocate): Avoid ICE is allocator could not be
        parsed; set 'omp allocate' attribute for stack/automatic variables
        and only reject static variables; add several additional
        restriction checks.
        * c-tree.h (c_mark_decl_jump_unsafe_in_current_scope): New prototype.
        * c-decl.cc (decl_jump_unsafe): Return true for omp-allocated decls.
        (c_mark_decl_jump_unsafe_in_current_scope): New.
        (warn_about_goto, c_check_switch_jump_warnings): Add error for
        omp-allocated decls.

2023-09-12  Martin Uecker  <uecker@tugraz.at>

        * c-typeck.cc (struct comptypes_data): Add structure.
        (tagged_types_tu_compatible_p,
        function_types_compatible_p, type_lists_compatible_p,
        comptypes_internal): Add structure to interface, change
        return type to bool, and adapt calls.
        (comptarget_types): Change return type too bool.
        (comptypes, comptypes_check_enum_int,
        comptypes_check_different_types): Adapt calls.

2023-09-06  Jakub Jelinek  <jakub@redhat.com>

        PR c/102989
        * c-decl.cc (finish_declspecs): Emit pedwarn_c11 on _BitInt.
        * c-typeck.cc (c_common_type): Emit sorry for common type between
        _Complex integer and larger _BitInt and return the _Complex integer.

2023-09-06  Jakub Jelinek  <jakub@redhat.com>

        PR c/102989
        * c-convert.cc (c_convert): Handle BITINT_TYPE like INTEGER_TYPE.
        * c-decl.cc (check_bitfield_type_and_width): Allow BITINT_TYPE
        bit-fields.
        (finish_struct): Prefer to use BITINT_TYPE for BITINT_TYPE bit-fields
        if possible.
        (declspecs_add_type): Formatting fixes.  Handle cts_bitint.  Adjust
        for added union in *specs.  Handle RID_BITINT.
        (finish_declspecs): Handle cts_bitint.  Adjust for added union
        in *specs.
        * c-parser.cc (c_keyword_starts_typename, c_token_starts_declspecs,
        c_parser_declspecs, c_parser_gnu_attribute_any_word): Handle
        RID_BITINT.
        (c_parser_omp_clause_schedule): Handle BITINT_TYPE like INTEGER_TYPE.
        * c-tree.h (enum c_typespec_keyword): Mention _BitInt in comment.
        Add cts_bitint enumerator.
        (struct c_declspecs): Move int_n_idx and floatn_nx_idx into a union
        and add bitint_prec there as well.
        * c-typeck.cc (c_common_type, comptypes_internal):
        Handle BITINT_TYPE.
        (perform_integral_promotions): Promote BITINT_TYPE bit-fields to
        their declared type.
        (build_array_ref, build_unary_op, build_conditional_expr,
        build_c_cast, convert_for_assignment, digest_init, build_binary_op):
        Handle BITINT_TYPE.
        * c-fold.cc (c_fully_fold_internal): Handle BITINT_TYPE like
        INTEGER_TYPE.
        * c-aux-info.cc (gen_type): Handle BITINT_TYPE.

2023-09-06  Jakub Jelinek  <jakub@redhat.com>

        * c-decl.cc (declspecs_add_type): Use pedwarn_c11 rather than pedwarn
        for _FloatN{,x} diagnostics and append " before C2X" to the diagnostic
        text.

2023-09-05  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.cc (c_parser_omp_clause_allocate): Handle
        error_mark_node.

2023-08-25  Sandra Loosemore  <sandra@codesourcery.com>

        * c-parser.cc (struct c_parser): Add omp_for_parse_state field.
        (struct omp_for_parse_data): New.
        (check_omp_intervening_code): New.
        (add_structured_block_stmt): New.
        (c_parser_compound_statement_nostart): Recognize intervening code,
        nested loops, and other things that need special handling in
        OpenMP loop constructs.
        (c_parser_while_statement): Error on loop in intervening code.
        (c_parser_do_statement): Likewise.
        (c_parser_for_statement): Likewise.
        (c_parser_postfix_expression_after_primary): Error on calls to
        the OpenMP runtime in intervening code.
        (c_parser_pragma): Error on OpenMP pragmas in intervening code.
        (c_parser_omp_loop_nest): New.
        (c_parser_omp_for_loop): Rewrite to use recursive descent, calling
        c_parser_omp_loop_nest to do the heavy lifting.

2023-08-24  Richard Sandiford  <richard.sandiford@arm.com>

        * c-parser.cc (c_parser_std_attribute): Conditionally allow
        two colons to be used in place of ::.
        (c_parser_std_attribute_list): New function, split out from...
        (c_parser_std_attribute_specifier): ...here.  Allow the attribute-list
        to start with __extension__.  When it does, also allow two colons
        to be used in place of ::.

2023-08-22  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.cc (c_parser_omp_clause_defaultmap): Parse
        'all' as category.

2023-08-17  Jose E. Marchesi  <jose.marchesi@oracle.com>

        PR c/106537
        * c-typeck.cc (build_binary_op): Warning on comparing distinct
        pointer types only when -Wcompare-distinct-pointer-types.

2023-08-15  Chung-Lin Tang  <cltang@codesourcery.com>
            Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.cc (OACC_DATA_CLAUSE_MASK): Add PRAGMA_OACC_CLAUSE_DEFAULT.

2023-08-11  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_typeof_specifier): Handle
        __typeof_unqual and __typeof_unqual__ as !is_std.

2023-08-11  Martin Uecker  <uecker@tugraz.at>

        PR c/84510
        * c-typeck.cc (build_c_cast): Add warning.

2023-08-05  Martin Uecker  <uecker@tugraz.at>

        * c-parser.cc (c_parser_generic_selection): Inhibit evaluation
        warnings branches that are known not be taken during parsing.

2023-08-04  Tamar Christina  <tamar.christina@arm.com>

        * c-parser.cc (c_parser_while_statement, c_parser_do_statement,
        c_parser_for_statement, c_parser_statement_after_labels,
        c_parse_pragma_novector, c_parser_pragma): Wire through novector and
        default to false.

2023-08-02  Eric Feng  <ef2648@columbia.edu>

        PR analyzer/107646
        * c-parser.cc: New functions on stashing values for the
        analyzer.

2023-08-01  Lewis Hyatt  <lhyatt@gmail.com>

        * c-parser.cc (pragma_lex_discard_to_eol): New function.
        (c_init_preprocess): New function.

2023-07-31  Hamza Mahfooz  <someguy@effective-light.com>

        PR c/65213
        * c-decl.cc (start_decl): Handle
        -Wmissing-variable-declarations.

2023-07-31  Chung-Lin Tang  <cltang@codesourcery.com>

        * c-parser.cc (c_parser_oacc_host_data): Add checking requiring OpenACC
        host_data construct to have an use_device clause.

2023-06-29  Qing Zhao  <qing.zhao@oracle.com>

        PR c/77650
        * c-decl.cc (finish_struct): Issue warnings for new option.

2023-06-29  Qing Zhao  <qing.zhao@oracle.com>

        * c-decl.cc (finish_struct): Set TYPE_INCLUDES_FLEXARRAY for
        struct/union type.

2023-06-29  Richard Biener  <rguenther@suse.de>

        PR c/110454
        * c-typeck.cc (convert_argument): Sink formal_prec compute
        to where TYPE_PRECISION is valid to use.

2023-06-29  Eugene Rozenfeld  <erozen@microsoft.com>

        * Make-lang.in: Pass correct stage cc1 when processing
        profile data collected while building target libraries

2023-06-16  David Malcolm  <dmalcolm@redhat.com>

        PR c/107583
        * c-parser.cc (c_parser_declspecs): Add hints to "unknown type
        name" error.

2023-06-12  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.cc (c_parser_omp_clause_map): Reword error message for
        clearness especially with 'omp target (enter/exit) data.'

2023-06-06  Kwok Cheung Yeung  <kcy@codesourcery.com>
            Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.cc (c_parser_omp_clause_defaultmap,
        c_parser_omp_clause_map): Parse 'present'.
        (c_parser_omp_clause_to, c_parser_omp_clause_from): Remove.
        (c_parser_omp_clause_from_to): New; parse to/from clauses with
        optional present modifer.
        (c_parser_omp_all_clauses): Update call.
        (c_parser_omp_target_data, c_parser_omp_target_enter_data,
        c_parser_omp_target_exit_data): Handle new map enum values
        for 'present' mapping.

2023-05-30  Tobias Burnus  <tobias@codesourcery.com>

        PR c/109999
        * c-parser.cc (c_parser_oacc_all_clauses,
        c_parser_omp_all_clauses): Improve error wording.

2023-05-23  Martin Uecker  <uecker@tugraz.at>

        PR c/109450
        * c-decl.cc (add_decl_expr): New function.
        (grokdeclarator): Add decl expr for size expression in
        types pointed to by parameters declared as arrays.

2023-05-23  Martin Uecker  <uecker@tugraz.at>

        PR c/70418
        PR c/106465
        PR c/107557
        PR c/108423
        * c-decl.cc (start_decl): Make sure size expression are
        evaluated only in correct context.
        (grokdeclarator): Size expression in fields may need a bind
        expression, make sure DECL_EXPR is always created.
        (grokfield, declspecs_add_type): Pass along size expressions.
        (finish_struct): Remove unneeded DECL_EXPR.
        (start_function): Evaluate size expressions for nested functions.
        * c-parser.cc (c_parser_struct_declarations,
        c_parser_struct_or_union_specifier): Pass along size expressions.
        (c_parser_declaration_or_fndef): Evaluate size expression.
        (c_parser_objc_at_property_declaration,
        c_parser_objc_class_instance_variables): Adapt.
        * c-tree.h (grokfield): Adapt declaration.

2023-05-19  Martin Uecker  <uecker@tugraz.at>

        * c-decl.cc (set_type_context): Remove.
        (pop_scope, diagnose_mismatched_decls, pushdecl):
        Remove dead code.
        * c-typeck.cc (comptypes_internal): Remove dead code.
        (same_translation_unit_p): Remove.
        (tagged_types_tu_compatible_p): Some fixes.

2023-05-19  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.cc (diagnose_mismatched_decls): Do not handle
        thread-local declarations as tentative definitions for C2x.
        (finish_decl): Do not allow thread-local definition with
        incomplete type for C2x.

2023-05-18  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * c-convert.cc (c_convert): Ditto.
        * c-decl.cc (merge_decls): Ditto.
        * c-parser.cc (c_parser_omp_clause_reduction): Ditto.
        (c_parser_omp_declare_reduction): Ditto.
        * c-typeck.cc (build_component_ref): Ditto.
        (convert_argument): Ditto.
        (pointer_diff): Ditto.
        (build_unary_op): Ditto.
        (build_c_cast): Ditto.
        (build_modify_expr): Ditto.
        (store_init_value): Ditto.
        (constexpr_init_fits_real_type): Ditto.
        (check_constexpr_init): Ditto.
        (c_finish_return): Ditto.
        (handle_omp_array_sections_1): Ditto.
        (c_finish_omp_clauses): Ditto.
        * gimple-parser.cc (c_finish_gimple_return): Ditto.

2023-05-16  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.cc (check_for_loop_decls): Use pedwarn_c11 for
        diagnostics.

2023-05-15  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.cc (grokdeclarator): Ignore _Atomic on function return
        type for C2x.

2023-04-30  Andrew Pinski  <apinski@marvell.com>

        * c-typeck.cc (process_init_element): Print out array type
        for excessive elements.

2023-04-30  Andrew Pinski  <apinski@marvell.com>

        PR c/107926
        * c-typeck.cc (process_init_element): Move the check
        for string cst until after the error message.

2023-04-28  Eugene Rozenfeld  <erozen@microsoft.com>

        * Make-lang.in: Merge perf data collected when compiling cc1 and runtime libraries

2023-04-27  Jakub Jelinek  <jakub@redhat.com>

        PR c/109409
        * c-parser.cc (c_parser_initializer): Move diagnostics about
        initialization of variable sized object with non-empty initializer
        after c_parser_expr_no_commas call and ret.set_error (); after it.

2023-04-27  Jakub Jelinek  <jakub@redhat.com>

        PR c/107682
        PR c/109412
        * c-typeck.cc (pop_init_level): If constructor_type is FUNCTION_TYPE,
        reject empty initializer as invalid.

2023-04-26  Richard Biener  <rguenther@suse.de>

        * gimple-parser.cc (c_parser_parse_gimple_body): Avoid
        last_stmt.

2023-04-25  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.cc (c_parser_omp_scan_loop_body): Handle
        zero exec statements before/after 'omp scan'.

2023-04-20  Jakub Jelinek  <jakub@redhat.com>

        PR c/107041
        * c-decl.cc (diagnose_mismatched_decls): Avoid -Wenum-int-mismatch
        warning on acc_on_device declaration.

2023-03-28  David Malcolm  <dmalcolm@redhat.com>

        PR c/107002
        * c-typeck.cc (parser_build_binary_op): Update for new param of
        check_for_xor_used_as_pow.

2023-03-10  Jakub Jelinek  <jakub@redhat.com>

        PR c/108079
        * c-decl.cc (pop_scope): Suppress OPT_Wunused_variable warning
        after diagnosing it.

2023-02-28  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/108894
        * c-decl.cc (strict_flex_array_level_of): Move to c-common.cc
        and rename to c_strict_flex_array_level_of.
        (is_flexible_array_member_p): Adjust caller.

2023-02-18  Martin Uecker  <uecker@tugraz.at>

        PR c/108375
        * c-decl.cc (decl_jump_unsafe): Use c_type_variably_modified_p.
        (diagnose_mismatched_decl): Dito.
        (warn_about_goto): Dito:
        (c_check_switch_jump_warnings): Dito.
        (finish_decl): Dito.
        (finish_struct): Dito.
        (grokdeclarator): Set C_TYPE_VARIABLY_MODIFIED.
        (finish_struct): Set C_TYPE_VARIABLY_MODIFIED.
        * c-objc-common.cc (c_var_mod_p): New function.
        (c_var_unspec_p): Remove.
        * c-objc-common.h: Set lang hook.
        * c-parser.cc (c_parser_declararion_or_fndef): Use c_type_variably_modified_p.
        (c_parser_typeof_specifier): Dito.
        (c_parser_has_attribute_expression): Dito.
        (c_parser_generic_selection): Dito.
        * c-tree.h: Define C_TYPE_VARIABLY_MODIFIED and define c_var_mode_p.
        * c-typeck.cc: Remove c_vla_mod_p and use C_TYPE_VARIABLY_MODIFIED.

2023-02-16  Patrick Palka  <ppalka@redhat.com>

        * c-parser.h: Mechanically drop static from static inline
        functions via s/^static inline/inline/g.

2023-02-10  Joseph Myers  <joseph@codesourcery.com>

        * c-convert.cc (c_convert): Allow conversion of a null pointer
        constant to nullptr_t.
        * c-typeck.cc (null_pointer_constant_p): Remove static.
        (convert_for_assignment): Allow conversion of a null pointer
        constant to nullptr_t.
        (digest_init): Handle NULLPTR_TYPE among scalar conversions.
        * c-tree.h (null_pointer_constant_p): Declare.

2023-02-09  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.cc (c_parser_omp_allocate): Parse align
        clause and check for restrictions.

2023-02-08  Joseph Myers  <joseph@codesourcery.com>

        * c-typeck.cc (check_constexpr_init): Remove argument
        null_pointer_constant.  Only check pointer initializers for being
        null.
        (digest_init): Update calls to check_constexpr_init.

2023-02-02  Joseph Myers  <joseph@codesourcery.com>

        * c-typeck.cc (build_binary_op): Allow comparisons between
        pointers and nullptr_t values that are not null pointer constants.

2023-02-02  Joseph Myers  <joseph@codesourcery.com>

        * c-typeck.cc: Include "realmpfr.h".
        (constexpr_init_fits_real_type): Do not allow signaling NaN
        conversions to different types with the same mode.  Handle
        conversions from binary to decimal types.
        (check_constexpr_init): Do not disallow real initializers for
        complex types.  Do not disallow binary initializers for decimal
        floating types.

2023-01-31  Marek Polacek  <polacek@redhat.com>

        PR c++/107593
        PR c++/108597
        * c-objc-common.cc (instantiation_dependent_expression_p): New.

2023-01-27  Joseph Myers  <joseph@codesourcery.com>

        * c-parser.cc (c_parser_declaration_or_fndef): Do not allow braces
        around auto initializer.

2023-01-16  Jakub Jelinek  <jakub@redhat.com>

        PR c++/105593
        * c-parser.cc (c_parser_initializer): Check warning_enabled_at
        at the DECL_SOURCE_LOCATION (decl) for OPT_Winit_self instead
        of warn_init_self.

2023-01-14  Jakub Jelinek  <jakub@redhat.com>

        PR c++/108365
        * c-typeck.cc (build_binary_op): Use may_shorten_divmod for integral
        division or modulo.

2023-01-13  Qing Zhao  <qing.zhao@oracle.com>

        * c-decl.cc (strict_flex_array_level_of): ... here.

2023-01-11  Jakub Jelinek  <jakub@redhat.com>

        PR c/105972
        * c-parser.cc (c_parser_declaration_or_fndef): Disable debug non-bind
        markers for K&R function parameter declarations of nested functions.

2023-01-09  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.cc (build_compound_literal): Call record_inline_static.

2023-01-06  Joseph Myers  <joseph@codesourcery.com>

        * c-parser.cc (c_parser_postfix_expression): Handle integer
        generic arguments to functions passed to __builtin_tgmath as
        _Float32x if any argument has _FloatNx or _Complex _FloatNx type.
        Do not handle integer arguments to some narrowing functions as
        _Float64.

2022-12-19  Jakub Jelinek  <jakub@redhat.com>

        PR c/108043
        * c-parser.cc (c_parser_postfix_expression_after_paren_type): Diagnose
        compound literals with function type.

2022-12-07  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.cc (declspecs_add_type, declspecs_add_scspec): Check for
        auto, constexpr and a type used together.

2022-12-06  Qing Zhao  <qing.zhao@oracle.com>

        * c-decl.cc (is_flexible_array_member_p): Call new function
        strict_flex_array_level_of.

2022-11-24  Florian Weimer  <fweimer@redhat.com>

        PR c/107805
        * c-decl.cc (declspecs_add_type): Propagate error_mark_bode
        from type to specs.

2022-11-17  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * c-decl.cc (start_function): Set the result decl source
        location to the location of the typespec.

2022-11-17  David Malcolm  <dmalcolm@redhat.com>

        PR analyzer/107711
        * c-parser.cc (ana::c_translation_unit::consider_macro): Pass NULL
        to cpp_create_reader, rather than ident_hash, so that the new
        reader gets its own hash table.

2022-11-15  David Malcolm  <dmalcolm@redhat.com>

        PR analyzer/106302
        * c-parser.cc: Include "analyzer/analyzer-language.h" and "toplev.h".
        (class ana::c_translation_unit): New.
        (c_parser_translation_unit): Call ana::on_finish_translation_unit.

2022-11-12  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.cc (start_underspecified_init)
        (finish_underspecified_init): Handle name == NULL_TREE for
        compound literals.
        (merge_decls): Merge C_DECL_DECLARED_CONSTEXPR.
        (shadow_tag_warned): Check for constexpr.
        (start_decl): Add parameter do_push.
        (build_compound_literal): Set C_DECL_DECLARED_CONSTEXPR.
        (grokdeclarator): Handle constexpr.
        (finish_struct): Set C_TYPE_FIELDS_NON_CONSTEXPR.
        (declspecs_add_scspec): Handle constexpr.
        * c-parser.cc (c_token_starts_compound_literal)
        (c_token_starts_declspecs, c_parser_declaration_or_fndef)
        (c_parser_declspecs, c_parser_gnu_attribute_any_word)
        (c_parser_compound_literal_scspecs)
        (c_parser_postfix_expression_after_paren_type): Handle constexpr.
        Update calls to start_init.
        (c_parser_declaration_or_fndef, c_parser_initializer)
        (c_parser_initval): Pass true for new argument of
        convert_lvalue_to_rvalue.  Call convert_lvalue_to_rvalue for
        constexpr compound literals.
        (c_parser_static_assert_declaration_no_semi)
        (c_parser_enum_specifier, c_parser_struct_declaration)
        (c_parser_alignas_specifier, c_parser_initelt, c_parser_label):
        Call convert_lvalue_to_rvalue on expressions required to be
        integer constant expressions.
        (c_parser_omp_declare_reduction): Update call to start_init.
        * c-tree.h (C_TYPE_FIELDS_NON_CONSTEXPR)
        (C_DECL_DECLARED_CONSTEXPR): New macros.
        (struct c_declspecs): Add constexpr_p.
        (start_decl, convert_lvalue_to_rvalue, start_init): Update
        prototypes.
        * c-typeck.cc (require_constant_value, require_constant_elements):
        Change to bool.
        (require_constexpr_value, maybe_get_constexpr_init)
        (constexpr_init_fits_real_type, check_constexpr_init): New.
        (convert_lvalue_to_rvalue): Add new parameter for_init.  Call
        maybe_get_constexpr_init.
        (store_init_value): Update call to digest_init.
        (digest_init): Add parameters int_const_expr, arith_const_expr and
        require_constexpr.  Check constexpr initializers.
        (constructor_top_level): Remove.
        (struct initializer_stack): Remove top_level.  Add
        require_constexpr_value.
        (start_init): Remove parameter top_level.  Add parameters
        init_require_constant and init_require_constexpr.  Save
        require_constexpr_value on stack.
        (pop_init_level): Use a null pointer constant for zero initializer
        of pointer initialized with {}.
        (output_init_element): Update call to digest_init.  Avoid passing
        null pointer constants of pointer type through digest_init a
        second time when initializing a constexpr object.

2022-11-03  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.cc (in_underspecified_init, start_underspecified_init)
        (finish_underspecified_init): New.
        (shadow_tag_warned, parser_xref_tag, start_struct, start_enum):
        Give errors inside initializers of underspecified declarations.
        (grokdeclarator): Handle (erroneous) case of C2X auto on a
        parameter.
        (declspecs_add_type): Handle c2x_auto_p case.
        (declspecs_add_scspec): Handle auto possibly setting c2x_auto_p in
        C2X mode.
        (finish_declspecs): Handle c2x_auto_p.
        * c-parser.cc (c_parser_declaration_or_fndef): Handle C2X auto.
        * c-tree.h (C_DECL_UNDERSPECIFIED): New macro.
        (struct c_declspecs): Add c2x_auto_p.
        (start_underspecified_init, finish_underspecified_init): New
        prototypes.
        * c-typeck.cc (build_external_ref): Give error for underspecified
        declaration referenced in its initializer.

2022-10-28  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.cc (grokdeclarator): Pass
        arg_info->no_named_args_stdarg_p to build_function_type.
        (grokparms): Check arg_info->no_named_args_stdarg_p before
        converting () to (void).
        (build_arg_info): Initialize no_named_args_stdarg_p.
        (get_parm_info): Set no_named_args_stdarg_p.
        (start_function): Pass TYPE_NO_NAMED_ARGS_STDARG_P to
        build_function_type.
        (store_parm_decls): Count (...) functions as prototyped.
        * c-parser.cc (c_parser_direct_declarator): Allow '...' after open
        parenthesis to start parameter list.
        (c_parser_parms_list_declarator): Always allow '...' with no
        arguments, call pedwarn_c11 and set no_named_args_stdarg_p.
        * c-tree.h (struct c_arg_info): Add field no_named_args_stdarg_p.
        * c-typeck.cc (composite_type): Handle
        TYPE_NO_NAMED_ARGS_STDARG_P.
        (function_types_compatible_p): Compare
        TYPE_NO_NAMED_ARGS_STDARG_P.

2022-10-28  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_omp_all_clauses): Allow optional
        comma before the first clause.
        (c_parser_omp_allocate, c_parser_omp_atomic, c_parser_omp_depobj,
        c_parser_omp_flush, c_parser_omp_scan_loop_body,
        c_parser_omp_ordered, c_finish_omp_declare_variant,
        c_parser_omp_declare_target, c_parser_omp_declare_reduction,
        c_parser_omp_requires, c_parser_omp_error,
        c_parser_omp_assumption_clauses): Likewise.

2022-10-28  Joseph Myers  <joseph@codesourcery.com>

        PR c/61469
        * c-convert.cc (c_convert): Handle enums with underlying boolean
        type like bool.
        * c-decl.cc (shadow_tag_warned): Allow shadowing declarations for
        enums with enum type specifier, but give errors for storage class
        specifiers, qualifiers or alignment specifiers in non-definition
        declarations of such enums.
        (grokdeclarator): Give error for non-definition use of type
        specifier with an enum type specifier.
        (parser_xref_tag): Add argument has_enum_type_specifier.  Pass it
        to lookup_tag and use it to set ENUM_FIXED_UNDERLYING_TYPE_P.
        (xref_tag): Update call to parser_xref_tag.
        (start_enum): Add argument fixed_underlying_type.  Complete enum
        type with a fixed underlying type given in the definition.  Give
        error for defining without a fixed underlying type in the
        definition if one was given in a prior declaration.  Do not mark
        enums with fixed underlying type as packed for -fshort-enums.
        Store the enum type in the_enum.
        (finish_enum): Do not adjust types of values or check their range
        for an enum with a fixed underlying type.  Set underlying type of
        enum and variants.
        (build_enumerator): Check enumeration constants for enum with
        fixed underlying type against that type and convert to that type.
        Increment in the underlying integer type, with handling for bool.
        (c_simulate_enum_decl): Update call to start_enum.
        (declspecs_add_type): Set specs->enum_type_specifier_ref_p.
        * c-objc-common.cc (c_get_alias_set): Use ENUM_UNDERLYING_TYPE
        rather than recomputing an underlying type based on size.
        * c-parser.cc (c_parser_declspecs)
        (c_parser_struct_or_union_specifier, c_parser_typeof_specifier):
        Set has_enum_type_specifier for type specifiers.
        (c_parser_enum_specifier): Handle enum type specifiers.
        (c_parser_struct_or_union_specifier): Update call to
        parser_xref_tag.
        (c_parser_omp_atomic): Check for boolean increment or decrement
        using C_BOOLEAN_TYPE_P.
        * c-tree.h (C_BOOLEAN_TYPE_P): New.
        (struct c_typespec): Add has_enum_type_specifier.
        (struct c_declspecs): Add enum_type_specifier_ref_p.
        (struct c_enum_contents): Add enum_type.
        (start_enum, parser_xref_tag): Update prototypes.
        * c-typeck.cc (composite_type): Allow for enumerated types
        compatible with bool.
        (common_type, comptypes_internal, perform_integral_promotions):
        Use ENUM_UNDERLYING_TYPE.
        (parser_build_binary_op, build_unary_op, convert_for_assignment)
        (c_finish_return, c_start_switch, build_binary_op): Check for
        boolean types using C_BOOLEAN_TYPE_P.

2022-10-24  Jakub Jelinek  <jakub@redhat.com>

        PR c++/107358
        * c-typeck.cc (build_binary_op): Pass operands before excess precision
        promotions to scalar_to_vector call.

2022-10-24  Arsen Arsenović  <arsen@aarsen.me>

        * c-decl.cc (finish_function): Ignore hosted when deciding
        whether to implicitly return zero, but check noreturn.
        * c-objc-common.cc (c_missing_noreturn_ok_p): Loosen the
        requirements to just MAIN_NAME_P when hosted, or `int main'
        otherwise.

2022-10-20  Richard Biener  <rguenther@suse.de>

        PR c/107305
        PR c/107306
        * gimple-parser.cc (c_parser_parse_gimple_body): Verify
        the parsed IL and zap the body on error.

2022-10-18  Joseph Myers  <joseph@codesourcery.com>

        PR c/107164
        * c-decl.cc (shadow_tag_warned): If pedantic, diagnose "enum tag;"
        with previous declaration visible.

2022-10-18  Joseph Myers  <joseph@codesourcery.com>

        PR c/36113
        * c-decl.cc (finish_enum): If any enumerators do not fit in int,
        convert all to the type of the enumeration.  pedwarn if no integer
        type fits all enumerators and default to
        widest_integer_literal_type_node in that case.  Otherwise pedwarn
        for type wider than intmax_t.
        (build_enumerator): pedwarn for enumerators outside the range of
        uintmax_t or intmax_t, and otherwise use pedwarn_c11 for
        enumerators outside the range of int.  On overflow, attempt to
        find a wider type that can hold the value of the next enumerator.
        Do not convert value to type determined with
        c_common_type_for_size.

2022-10-14  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.cc (convert_arguments): Don't promote __bf16 to
        double.

2022-10-14  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.cc (build_compound_literal): Add parameter scspecs.
        Handle storage class specifiers.
        * c-parser.cc (c_token_starts_compound_literal)
        (c_parser_compound_literal_scspecs): New.
        (c_parser_postfix_expression_after_paren_type): Add parameter
        scspecs.  Call pedwarn_c11 for use of storage class specifiers.
        Update call to build_compound_literal.
        (c_parser_cast_expression, c_parser_sizeof_expression)
        (c_parser_alignof_expression): Handle storage class specifiers for
        compound literals.  Update calls to
        c_parser_postfix_expression_after_paren_type.
        (c_parser_postfix_expression): Update syntax comment.
        * c-tree.h (build_compound_literal): Update prototype.
        * c-typeck.cc (c_mark_addressable): Diagnose taking address of
        register compound literal.

2022-10-07  Qing Zhao  <qing.zhao@oracle.com>

        * c-decl.cc (flexible_array_member_type_p): New function.
        (one_element_array_type_p): Likewise.
        (zero_length_array_type_p): Likewise.
        (add_flexible_array_elts_to_size): Call new utility
        routine flexible_array_member_type_p.
        (is_flexible_array_member_p): New function.
        (finish_struct): Set the new DECL_NOT_FLEXARRAY flag.

2022-10-06  Joseph Myers  <joseph@codesourcery.com>

        * c-parser.cc (c_parse_init): Add D_EXT11 to mask if flag_no_asm
        and not C2x.
        (c_keyword_starts_typename, c_token_starts_declspecs)
        (c_parser_declspecs, c_parser_objc_selector): Handle
        RID_TYPEOF_UNQUAL.
        (c_parser_typeof_specifier): Handle RID_TYPEOF_UNQUAL.
        Distinguish typeof for C2x from __typeof__ for all standard
        versions and typeof before C2x.
        * c-typeck.cc (build_function_call_vec): Use unqualified version
        of non-void return type.
        (build_unary_op): Use unqualified type for increment and
        decrement.

2022-10-06  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_omp_assumption_clauses): Emit IFN_ASSUME
        call for holds clause on assume construct.

2022-10-06  Jakub Jelinek  <jakub@redhat.com>

        PR c++/106654
        * c-parser.cc (handle_assume_attribute): New function.
        (c_parser_declaration_or_fndef): Handle assume attribute.
        (c_parser_attribute_arguments): Add assume_attr argument,
        if true, parse first argument as conditional expression.
        (c_parser_gnu_attribute, c_parser_std_attribute): Adjust
        c_parser_attribute_arguments callers.
        (c_parser_statement_after_labels) <case RID_ATTRIBUTE>: Handle
        assume attribute.

2022-10-04  Jakub Jelinek  <jakub@redhat.com>

        * c-lang.h (struct c_omp_declare_target_attr): New type.
        (current_omp_declare_target_attribute): Change type from
        int to vec<c_omp_declare_target_attr, va_gc> *.
        * c-parser.cc (c_parser_translation_unit): Adjust for that change.
        If last pushed directive was begin declare target, use different
        wording and simplify format strings for easier translations.
        (c_parser_omp_clause_device_type): Uncomment
        check_no_duplicate_clause call.
        (c_parser_omp_declare_target): Adjust for the
        current_omp_declare_target_attribute type change, push { -1 }.
        Use error_at rather than warning_at for declare target with
        only device_type clauses.
        (OMP_BEGIN_DECLARE_TARGET_CLAUSE_MASK): Define.
        (c_parser_omp_begin): Add begin declare target support.
        (c_parser_omp_end): Adjust for the
        current_omp_declare_target_attribute type change, adjust
        diagnostics wording and simplify format strings for easier
        translations.
        * c-decl.cc (current_omp_declare_target_attribute): Change type from
        int to vec<c_omp_declare_target_attr, va_gc> *.
        (c_decl_attributes): Adjust for the
        current_omp_declare_target_attribute type change.  If device_type
        was present on begin declare target, add "omp declare target host"
        and/or "omp declare target nohost" attributes.

2022-09-29  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.cc (handle_std_noreturn_attribute): New function.
        (std_attribute_table): Add _Noreturn and noreturn.

2022-09-27  Jakub Jelinek  <jakub@redhat.com>

        * c-lang.h (current_omp_begin_assumes): Declare.
        * c-parser.cc: Include bitmap.h.
        (c_parser_omp_end_declare_target): Rename to ...
        (c_parser_omp_end): ... this.  Handle also end assumes.
        (c_parser_omp_begin, c_parser_omp_assumption_clauses,
        c_parser_omp_assumes, c_parser_omp_assume): New functions.
        (c_parser_translation_unit): Also diagnose #pragma omp begin assumes
        without corresponding #pragma omp end assumes.
        (c_parser_pragma): Use %s in may only be used at file scope
        diagnostics to decrease number of translatable messages.  Handle
        PRAGMA_OMP_BEGIN and PRAGMA_OMP_ASSUMES.  Handle PRAGMA_OMP_END
        rather than PRAGMA_OMP_END_DECLARE_TARGET and call c_parser_omp_end
        for it rather than c_parser_omp_end_declare_target.
        (c_parser_omp_construct): Handle PRAGMA_OMP_ASSUME.
        * c-decl.cc (current_omp_begin_assumes): Define.

2022-09-24  Jakub Jelinek  <jakub@redhat.com>

        PR c/106981
        * c-typeck.cc (c_tree_equal): Only strip NON_LVALUE_EXPRs at the
        start.  For CONSTANT_CLASS_P or CASE_CONVERT: return false if t1 and
        t2 have different types.

2022-09-22  David Malcolm  <dmalcolm@redhat.com>

        PR c/106830
        * c-parser.cc (c_parser_initelt): Initialize m_decimal.
        (c_parser_cast_expression): Likewise.
        (c_parser_alignof_expression): Likewise.
        (c_parser_postfix_expression_after_paren_type): Likewise.
        (c_parser_postfix_expression_after_primary): Likewise.
        (c_parser_expression): Likewise.
        (c_parser_omp_variable_list): Likewise.
        (c_parser_transaction_expression): Likewise.
        * c-tree.h (c_expr::set_error): Likewise.
        * c-typeck.cc (c_expr_sizeof_expr): Likewise.
        (parser_build_unary_op): Likewise.
        (parser_build_binary_op): Likewise.
        (digest_init): Likewise.
        (pop_init_level): Likewise.
        * gimple-parser.cc (c_parser_gimple_call_internal): Likewise.

2022-09-19  Marek Polacek  <polacek@redhat.com>

        PR c/106947
        * c-typeck.cc (maybe_warn_for_null_address): Don't emit stray
        notes.

2022-09-15  Richard Biener  <rguenther@suse.de>

        * c-decl.cc (build_void_list_node): Remove.

2022-09-14  Julian Brown  <julian@codesourcery.com>

        * c-typeck.cc (c_finish_omp_clauses): Remove whole mapping node group
        on error.

2022-09-07  Joseph Myers  <joseph@codesourcery.com>

        * c-parser.cc (c_parser_static_assert_declaration_no_semi)
        (c_parser_alignas_specifier, c_parser_alignof_expression): Allow
        for C2x spellings of keywords.
        (c_parser_postfix_expression): Handle RID_TRUE and RID_FALSE.

2022-09-06  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_omp_clause_doacross_sink): Don't verify val
        in omp_cur_iteration - 1 has integer_type_node type.

2022-09-03  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_omp_clause_name): Handle doacross.
        (c_parser_omp_clause_depend_sink): Renamed to ...
        (c_parser_omp_clause_doacross_sink): ... this.  Add depend_p argument.
        Handle parsing of doacross(sink:omp_cur_iteration-1).  Use
        OMP_CLAUSE_DOACROSS_SINK_NEGATIVE instead of
        OMP_CLAUSE_DEPEND_SINK_NEGATIVE, build OMP_CLAUSE_DOACROSS instead
        of OMP_CLAUSE_DEPEND and set OMP_CLAUSE_DOACROSS_DEPEND flag on it.
        (c_parser_omp_clause_depend): Use OMP_CLAUSE_DOACROSS_SINK and
        OMP_CLAUSE_DOACROSS_SOURCE instead of OMP_CLAUSE_DEPEND_SINK and
        OMP_CLAUSE_DEPEND_SOURCE, build OMP_CLAUSE_DOACROSS for depend(source)
        and set OMP_CLAUSE_DOACROSS_DEPEND on it.
        (c_parser_omp_clause_doacross): New function.
        (c_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DOACROSS.
        (c_parser_omp_depobj): Use OMP_CLAUSE_DEPEND_INVALID instead of
        OMP_CLAUSE_DEPEND_SOURCE.
        (c_parser_omp_for_loop): Don't diagnose here linear clause together
        with ordered with argument.
        (c_parser_omp_simd): Don't diagnose ordered clause with argument on
        for simd.
        (OMP_ORDERED_DEPEND_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_DOACROSS.
        (c_parser_omp_ordered): Handle also doacross and adjust for it
        diagnostic wording.
        * c-typeck.cc (c_finish_omp_clauses): Handle OMP_CLAUSE_DOACROSS.
        Don't handle OMP_CLAUSE_DEPEND_SOURCE and OMP_CLAUSE_DEPEND_SINK.

2022-09-02  David Malcolm  <dmalcolm@redhat.com>

        PR c/90885
        * c-parser.cc (c_parser_string_literal): Clear ret.m_decimal.
        (c_parser_expr_no_commas): Likewise.
        (c_parser_conditional_expression): Likewise.
        (c_parser_binary_expression): Clear m_decimal when popping the
        stack.
        (c_parser_unary_expression): Clear ret.m_decimal.
        (c_parser_has_attribute_expression): Likewise for result.
        (c_parser_predefined_identifier): Likewise for expr.
        (c_parser_postfix_expression): Likewise for expr.
        Set expr.m_decimal when handling a CPP_NUMBER that was a decimal
        token.
        * c-tree.h (c_expr::m_decimal): New bitfield.
        * c-typeck.cc (parser_build_binary_op): Clear result.m_decimal.
        (parser_build_binary_op): Call check_for_xor_used_as_pow.

2022-09-01  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.cc (grokparms): Handle () in a function declaration the
        same as (void) for C2X.

2022-08-31  Joseph Myers  <joseph@codesourcery.com>

        * c-parser.cc (c_parser_label): Pass attributes to do_case.
        * c-typeck.cc (do_case): Add argument ATTRS.  Pass it to
        c_add_case_label.

2022-08-26  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.cc (convert_arguments): Handle BUILT_IN_ISSIGNALING.

2022-08-25  Marek Polacek  <polacek@redhat.com>

        * c-convert.cc (c_convert) <case POINTER_TYPE>: Handle NULLPTR_TYPE.
        Give a better diagnostic when converting to nullptr_t.
        * c-decl.cc (c_init_decl_processing): Perform C-specific nullptr
        initialization.
        * c-parser.cc (c_parse_init): Maybe OR D_C2X into mask.
        (c_parser_postfix_expression): Handle RID_NULLPTR.
        * c-typeck.cc (null_pointer_constant_p): Return true when expr is
        nullptr_node.
        (build_unary_op) <case TRUTH_NOT_EXPR>: Handle NULLPTR_TYPE.
        (build_conditional_expr): Handle the case when the second/third operand
        is NULLPTR_TYPE and third/second operand is POINTER_TYPE.
        (convert_for_assignment): Handle converting an expression of type
        nullptr_t to pointer/bool.
        (build_binary_op) <case TRUTH_XOR_EXPR>: Handle NULLPTR_TYPE.
        <case EQ_EXPR>: Handle comparing operands of type nullptr_t.

2022-08-25  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.cc (start_decl): Do not diagnose initialization of
        variable-sized objects here.
        * c-parser.cc (c_parser_braced_init): Add argument DECL.  All
        callers changed.
        (c_parser_initializer): Diagnose initialization of variable-sized
        objects other than with braced initializer.
        (c_parser_braced_init): Use pedwarn_c11 for empty initializer
        braces and update diagnostic text.  Diagnose initialization of
        variable-sized objects with nonempty braces.
        * c-typeck.cc (digest_init): Update diagnostic for initialization
        of variable-sized objects.
        (really_start_incremental_init, set_designator)
        (process_init_element): Update comments.
        (pop_init_level): Allow scalar empty initializers.

2022-08-17  Tobias Burnus  <tobias@codesourcery.com>
            Chung-Lin Tang  <cltang@codesourcery.com>

        PR c++/104493
        * c-decl.cc (c_decl_attributes, finish_decl): Call omp_mappable_type
        instead of removed langhook.
        * c-typeck.cc (c_finish_omp_clauses): Likewise.

2022-08-11  Marek Polacek  <polacek@redhat.com>

        PR middle-end/102633
        * c-parser.cc (c_parser_initializer): Add new tree parameter.  Use it.
        Call suppress_warning.
        (c_parser_declaration_or_fndef): Pass d down to c_parser_initializer.
        (c_parser_omp_declare_reduction): Pass omp_priv down to
        c_parser_initializer.

2022-08-08  Tom Honermann  <tom@honermann.net>

        * c-parser.cc (c_parser_string_literal): Use char8_t as the type
        of CPP_UTF8STRING when char8_t support is enabled.
        * c-typeck.cc (digest_init): Allow initialization of an array
        of character type by a string literal with type array of
        char8_t.

2022-08-01  David Malcolm  <dmalcolm@redhat.com>

        * c-typeck.cc (build_c_cast): Quote names of address spaces in
        diagnostics.
        (convert_for_assignment): Add a note to address space mismatch
        diagnostics, specifying the expected and actual types.

2022-07-10  Lewis Hyatt  <lhyatt@gmail.com>

        PR preprocessor/97498
        * c-parser.cc (c_parser_pragma): Set input_location to the
        location of the pragma, rather than the start of the line.

2022-07-04  Tobias Burnus  <tobias@codesourcery.com>
            Chung-Lin Tang  <cltang@codesourcery.com>
            Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.cc (c_parser_omp_target_data, c_parser_omp_target_update,
        c_parser_omp_target_enter_data, c_parser_omp_target_exit_data): Set
        OMP_REQUIRES_TARGET_USED.
        (c_parser_omp_requires): Remove sorry.

2022-07-01  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.cc (c_parser_omp_target_enter_data,
        c_parser_omp_target_exit_data): Accept tofrom
        map-type modifier but use 'to' / 'from' internally.

2022-06-16  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.cc (implicitly_declare): Add auto_diagnostic_group to
        group the warning with any note.
        (warn_about_goto): Likewise to group error or warning with note.
        Bail out if the warning wasn't emitted, to avoid emitting orphan
        notes.
        (lookup_label_for_goto): Add auto_diagnostic_group to
        group the error with the note.
        (check_earlier_gotos): Likewise.
        (c_check_switch_jump_warnings): Likewise for any error/warning.
        Conditionalize emission of the notes.
        (diagnose_uninitialized_cst_member): Likewise for warning,
        conditionalizing emission of the note.
        (grokdeclarator): Add auto_diagnostic_group to group the "array
        type has incomplete element type" error with any note.
        (parser_xref_tag): Add auto_diagnostic_group to group warnings
        with their notes.  Conditionalize emission of notes.
        (start_struct): Add auto_diagnostic_group to group the
        "redefinition of" errors with any note.
        (start_enum): Likewise for "redeclaration of %<enum %E%>" error.
        (check_for_loop_decls): Likewise for pre-C99 error.

2022-06-07  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_omp_clause_linear): Parse OpenMP 5.2
        style linear clause modifiers.  Set
        OMP_CLAUSE_LINEAR_OLD_LINEAR_MODIFIER flag on the clauses when
        old style modifiers are used.
        * c-typeck.cc (c_finish_omp_clauses): Only reject linear clause
        with val modifier on simd or for if the old style modifiers are
        used.

2022-06-02  David Malcolm  <dmalcolm@redhat.com>

        * c-lang.cc (LANG_HOOKS_GET_SARIF_SOURCE_LANGUAGE): Redefine.
        (c_get_sarif_source_language): New.
        * c-tree.h (c_get_sarif_source_language): New decl.

2022-05-31  Jason Merrill  <jason@redhat.com>

        * Make-lang.in (c.tags): Look at *.cc.

2022-05-31  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (OMP_SCOPE_CLAUSE_MASK): Add firstprivate and allocate
        clauses.

2022-05-28  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_omp_declare_target): If OMP_CLAUSE_LINK was
        seen first, use "%<to%>" or "%<enter%>" depending on
        OMP_CLAUSE_ENTER_TO of the current clause, otherwise use
        "%<to%> or %<enter%>" wording.

2022-05-27  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_omp_clause_name): Parse enter clause.
        (c_parser_omp_all_clauses): For to clause on declare target, use
        OMP_CLAUSE_ENTER clause with OMP_CLAUSE_ENTER_TO instead of
        OMP_CLAUSE_TO_DECLARE clause.  Handle PRAGMA_OMP_CLAUSE_ENTER.
        (OMP_DECLARE_TARGET_CLAUSE_MASK): Add enter clause.
        (c_parser_omp_declare_target): Use OMP_CLAUSE_ENTER instead of
        OMP_CLAUSE_TO_DECLARE.
        * c-typeck.cc (c_finish_omp_clauses): Handle OMP_CLAUSE_ENTER instead
        of OMP_CLAUSE_TO_DECLARE, to OMP_CLAUSE_ENTER_TO use "to" as clause
        name in diagnostics instead of
        omp_clause_code_name[OMP_CLAUSE_CODE (c)].

2022-05-25  Jakub Jelinek  <jakub@redhat.com>

        PR c/91134
        * c-tree.h (build_component_ref): Add ARROW_LOC location_t argument.
        * c-typeck.cc (build_component_ref): Likewise.  If DATUM is
        INDIRECT_REF and ARROW_LOC isn't UNKNOWN_LOCATION, print a different
        diagnostic and fixit hint if DATUM has pointer type.
        * c-parser.cc (c_parser_postfix_expression,
        c_parser_omp_variable_list): Adjust build_component_ref callers.
        * gimple-parser.cc (c_parser_gimple_postfix_expression_after_primary):
        Likewise.

2022-05-24  Jakub Jelinek  <jakub@redhat.com>

        PR c/105378
        * c-parser.cc (OMP_TASKWAIT_CLAUSE_MASK): Add nowait clause.

2022-05-18  Marek Polacek  <polacek@redhat.com>

        PR c/105131
        * c-decl.cc (diagnose_mismatched_decls): Warn about enum/integer type
        mismatches.
        * c-tree.h (comptypes_check_enum_int): Declare.
        * c-typeck.cc (comptypes): No longer static.

2022-05-17  Marek Polacek  <polacek@redhat.com>

        * c-decl.cc (finish_enum): Store the CONST_DECL into TREE_VALUE, not
        its value.

2022-05-17  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_omp_clause_depend): Parse
        inoutset depend-kind.
        (c_parser_omp_depobj): Likewise.

2022-05-16  Martin Liska  <mliska@suse.cz>

        * c-decl.cc (match_builtin_function_types): Use ARRAY_SIZE.

2022-05-12  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parse_init): Register omp_all_memory as keyword
        if flag_openmp.
        (c_parser_postfix_expression): Diagnose uses of omp_all_memory
        in postfix expressions.
        (c_parser_omp_variable_list): Handle omp_all_memory in depend
        clause.
        * c-typeck.cc (c_finish_omp_clauses): Handle omp_all_memory
        keyword in depend clause as null_pointer_node, diagnose invalid
        uses.

2022-05-09  Martin Liska  <mliska@suse.cz>

        * c-parser.cc (c_parser_conditional_expression): Use {,UN}LIKELY
        macros.
        (c_parser_binary_expression): Likewise.

2022-05-07  Marek Polacek  <polacek@redhat.com>

        PR c++/101833
        PR c++/47634
        * c-objc-common.cc (maybe_adjust_arg_pos_for_attribute): New.

2022-04-08  Jakub Jelinek  <jakub@redhat.com>

        PR c/105149
        * c-typeck.cc (c_build_va_arg): Reject function types.

2022-03-22  Marek Polacek  <polacek@redhat.com>

        PR c/82283
        PR c/84685
        * c-typeck.cc (struct initializer_stack): Add 'designated' member.
        (start_init): Set it.
        (finish_init): Restore constructor_designated.
        (push_init_level): Set constructor_designated to the value of
        constructor_designated in the upper constructor_stack.

2022-03-12  Thomas Schwinge  <thomas@codesourcery.com>

        PR other/65095
        * c-typeck.cc (handle_omp_array_sections_1)
        (c_oacc_check_attachments): Call 'user_omp_clause_code_name'
        instead of 'c_omp_map_clause_name'.

2022-03-09  Joseph Myers  <joseph@codesourcery.com>

        * c-typeck.cc (function_types_compatible_p): Do not handle C2X
        differently from earlier standards for unprototyped function type
        compatibility.

2022-03-09  Jakub Jelinek  <jakub@redhat.com>

        PR c/104711
        * c-fold.cc (c_fully_fold_internal): Don't emit
        -Wshift-negative-value warning if TYPE_OVERFLOW_WRAPS.
        * c-typeck.cc (build_binary_op): Likewise.

2022-03-07  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.cc (c_parser_omp_clause_map): Add missing space in string
        literal.

2022-02-23  Richard Biener  <rguenther@suse.de>

        * gimple-parser.cc (c_parser_parse_gimple_body): Diagnose
        SSA names without definition.
        (c_parser_gimple_declaration): Handle pointer typed SSA names.

2022-02-17  Jakub Jelinek  <jakub@redhat.com>

        PR c/104532
        * c-parser.cc (c_parser_omp_variable_list): For CPP_DEREF, use
        convert_lvalue_to_rvalue and build_indirect_ref instead of
        build_simple_mem_ref.

2022-02-11  Richard Biener  <rguenther@suse.de>

        * gimple-parser.cc (c_parser_gimple_statement): Properly parse
        VEC_COND_EXPRs.

2022-02-10  Marcel Vollweiler  <marcel@codesourcery.com>

        * c-parser.cc (c_parser_omp_clause_name): Parse 'has_device_addr'
        clause.
        (c_parser_omp_variable_list): Handle array sections.
        (c_parser_omp_clause_has_device_addr): Added.
        (c_parser_omp_all_clauses): Added PRAGMA_OMP_CLAUSE_HAS_DEVICE_ADDR
        case.
        (c_parser_omp_target_exit_data): Added HAS_DEVICE_ADDR to
        OMP_CLAUSE_MASK.
        * c-typeck.cc (handle_omp_array_sections): Handle clause restrictions.
        (c_finish_omp_clauses): Handle array sections.

2022-02-09  Jakub Jelinek  <jakub@redhat.com>

        PR c/104427
        * c-parser.cc (c_parser_postfix_expression)
        <case RID_BUILTIN_ASSOC_BARRIER>: Use parser_build_unary_op
        instead of build1_loc to build PAREN_EXPR.
        * c-typeck.cc (build_unary_op): Handle PAREN_EXPR.
        * c-fold.cc (c_fully_fold_internal): Likewise.

2022-01-17  Martin Liska  <mliska@suse.cz>

        * Make-lang.in: Rename .c names to .cc.
        * c-convert.cc: Likewise.
        * c-decl.cc (struct lang_identifier): Likewise.
        (pop_scope): Likewise.
        (finish_decl): Likewise.
        * c-objc-common.h (GCC_C_OBJC_COMMON): Likewise.
        * c-parser.cc (c_parser_skip_to_end_of_block_or_statement): Likewise.
        * c-parser.h (GCC_C_PARSER_H): Likewise.
        * c-tree.h (c_keyword_starts_typename): Likewise.
        (finish_declspecs): Likewise.
        (c_get_alias_set): Likewise.
        (enum c_oracle_request): Likewise.
        (tag_exists_p): Likewise.
        (set_c_expr_source_range): Likewise.
        * c-typeck.cc (c_common_type): Likewise.
        (c_finish_omp_clauses): Likewise.
        * config-lang.in: Likewise.

2022-01-17  Martin Liska  <mliska@suse.cz>

        * c-aux-info.c: Moved to...
        * c-aux-info.cc: ...here.
        * c-convert.c: Moved to...
        * c-convert.cc: ...here.
        * c-decl.c: Moved to...
        * c-decl.cc: ...here.
        * c-errors.c: Moved to...
        * c-errors.cc: ...here.
        * c-fold.c: Moved to...
        * c-fold.cc: ...here.
        * c-lang.c: Moved to...
        * c-lang.cc: ...here.
        * c-objc-common.c: Moved to...
        * c-objc-common.cc: ...here.
        * c-parser.c: Moved to...
        * c-parser.cc: ...here.
        * c-typeck.c: Moved to...
        * c-typeck.cc: ...here.
        * gccspec.c: Moved to...
        * gccspec.cc: ...here.
        * gimple-parser.c: Moved to...
        * gimple-parser.cc: ...here.

2022-01-17  Andrew Stubbs  <ams@codesourcery.com>

        * c-parser.c (c_parser_omp_requires): Don't "sorry" dynamic_allocators.

2022-01-14  Chung-Lin Tang  <cltang@codesourcery.com>

        PR c++/103705
        * c-typeck.c (c_finish_omp_clauses): Also continue peeling off of
        outer node for ARRAY_REFs.

2022-01-01  Jakub Jelinek  <jakub@redhat.com>

        PR objc/103639
        * c-typeck.c (c_finish_bc_stmt): For break inside of switch inside of
        ObjC foreach, emit normal BREAK_STMT rather than goto to label.

2021-12-17  Marek Polacek  <polacek@redhat.com>

        PR c/103649
        * c-decl.c (c_warn_unused_attributes): Don't warn for
        attribute_ignored_p.
        * c-parser.c (c_parser_std_attribute): Skip parsing of the attribute
        arguments when the attribute is ignored.

2021-12-14  Jakub Jelinek  <jakub@redhat.com>

        PR c/103587
        * c-parser.c (c_parser_balanced_token_sequence): For CPP_PRAGMA,
        consume the pragma and silently skip to the pragma eol.

2021-12-12  Jonathan Wakely  <jwakely@redhat.com>

        * c-decl.c: Define INCLUDE_MEMORY instead of INCLUDE_UNIQUE_PTR.
        * c-parser.c: Likewise.

2021-12-09  Jakub Jelinek  <jakub@redhat.com>

        PR pch/71934
        * c-decl.c (resort_field_decl_cmp): Pass the same pointer twice
        to resort_data.new_value.

2021-12-08  Chung-Lin Tang  <cltang@codesourcery.com>

        * c-parser.c (struct omp_dim): New struct type for use inside
        c_parser_omp_variable_list.
        (c_parser_omp_variable_list): Allow multiple levels of array and
        component accesses in array section base-pointer expression.
        (c_parser_omp_clause_to): Set 'allow_deref' to true in call to
        c_parser_omp_var_list_parens.
        (c_parser_omp_clause_from): Likewise.
        * c-typeck.c (handle_omp_array_sections_1): Extend allowed range
        of base-pointer expressions involving INDIRECT/MEM/ARRAY_REF and
        POINTER_PLUS_EXPR.
        (c_finish_omp_clauses): Extend allowed ranged of expressions
        involving INDIRECT/MEM/ARRAY_REF and POINTER_PLUS_EXPR.

2021-12-08  Chung-Lin Tang  <cltang@codesourcery.com>

        PR middle-end/92120
        * c-parser.c (c_parser_omp_clause_map): Set 'allow_deref' argument in
        call to c_parser_omp_variable_list to 'true'.
        * c-typeck.c (handle_omp_array_sections_1): Add strip of MEM_REF in
        array base handling.
        (c_finish_omp_clauses): Handle 'A->member' case in map clauses.

2021-11-30  Thomas Schwinge  <thomas@codesourcery.com>

        * c-typeck.c (c_finish_omp_clauses): Remove "gang reduction on an
        orphan loop" checking.

2021-11-30  Cesar Philippidis  <cesar@codesourcery.com>
            Thomas Schwinge  <thomas@codesourcery.com>

        * c-typeck.c (c_finish_omp_clauses): Emit an error on orphan
        OpenACC gang reductions.

2021-11-30  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_postfix_expression):
        avoid unreachable code after break.

2021-11-29  Eric Gallager  <egallager@gcc.gnu.org>

        PR other/103021
        * Make-lang.in: Use ETAGS variable in TAGS target.

2021-11-29  Richard Biener  <rguenther@suse.de>

        * c-typeck.c (c_tree_equal): Remove unreachable return.
        * c-parser.c (get_matching_symbol): Likewise.

2021-11-23  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (c_clone_omp_udr): Don't initialize
        id.transform_lang_insert_block.

2021-11-19  Martin Sebor  <msebor@redhat.com>

        PR c++/33925
        PR c/102867
        * c-typeck.c (maybe_warn_for_null_address): Suppress warnings for
        code resulting from macro expansion.

2021-11-19  Martin Liska  <mliska@suse.cz>

        Revert:
        2021-11-19  Martin Liska  <mliska@suse.cz>

        * c-parser.c (add_debug_begin_stmt): Use option directly.

2021-11-18  Matthias Kretz  <m.kretz@gsi.de>

        * c-decl.c (names_builtin_p): Handle RID_BUILTIN_ASSOC_BARRIER.
        * c-parser.c (c_parser_postfix_expression): Likewise.

2021-11-18  Martin Liska  <mliska@suse.cz>

        * c-parser.c (add_debug_begin_stmt): Use option directly.

2021-11-17  Martin Sebor  <msebor@redhat.com>

        PR c/101702
        * c-decl.c (get_parm_array_spec): Strip casts earlier and fold array
        bounds before deciding if they're constant.

2021-11-15  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (OMP_TARGET_CLAUSE_MASK): Add
        PRAGMA_OMP_CLAUSE_THREAD_LIMIT.

2021-11-11  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_num_teams): Parse optional
        lower-bound and store it into OMP_CLAUSE_NUM_TEAMS_LOWER_EXPR.
        Use OMP_CLAUSE_NUM_TEAMS_UPPER_EXPR instead of
        OMP_CLAUSE_NUM_TEAMS_EXPR.
        (c_parser_omp_target): For OMP_CLAUSE_NUM_TEAMS evaluate before
        combined target teams even lower-bound expression.

2021-11-11  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c: Shuffle bitmap.h include.

2021-11-03  Joseph Myers  <joseph@codesourcery.com>

        PR c/103031
        * c-convert.c (c_convert): New function, based on convert.
        (convert): Make into wrapper of c_convert.
        (convert_init): New function.
        * c-typeck.c (enum impl_conv): Add ic_init_const.
        (convert_for_assignment): Handle ic_init_const like ic_init.  Add
        new argument to convert_and_check call.
        (digest_init): Pass ic_init_const to convert_for_assignment for
        initializers required to be constant.

2021-11-02  Richard Sandiford  <richard.sandiford@arm.com>

        * c-tree.h (c_simulate_record_decl): Declare.
        * c-objc-common.h (LANG_HOOKS_SIMULATE_RECORD_DECL): Override.
        * c-decl.c (c_simulate_record_decl): New function.

2021-10-22  Eric Gallager  <egallager@gcc.gnu.org>

        PR other/102663
        * Make-lang.in: Add dummy c.install-dvi target.

2021-10-15  Richard Biener  <rguenther@suse.de>

        PR c/102763
        * gimple-parser.c
        (c_parser_gimple_postfix_expression_after_primary): Check
        for a pointer do be dereferenced by ->.

2021-10-14  Kwok Cheung Yeung  <kcy@codesourcery.com>

        * c-parser.c (c_finish_omp_declare_variant): Change call from
        c_omp_check_context_selector to omp_check_context_selector. Change
        call from c_omp_mark_declare_variant to omp_mark_declare_variant.

2021-10-09  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_structured_block_sequence): New function.
        (c_parser_omp_scan_loop_body): Use it.
        (c_parser_omp_sections_scope): Likewise.

2021-10-07  Richard Biener  <rguenther@suse.de>

        * c-typeck.c (lvalue_p): Also allow MEM_REF and TARGET_MEM_REF.

2021-10-05  Richard Biener  <rguenther@suse.de>

        PR c/102605
        * gimple-parser.c (c_parser_gimple_postfix_expression):
        Accept more address _Literals.

2021-10-04  Marek Polacek  <polacek@redhat.com>

        PR c++/97573
        * c-typeck.c (parser_build_binary_op): Call do_warn_array_compare.

2021-10-01  Martin Sebor  <msebor@redhat.com>

        PR c/102103
        * c-typeck.c (maybe_warn_for_null_address): New function.
        (build_binary_op): Call it.

2021-10-01  Jakub Jelinek  <jakub@redhat.com>
            Richard Biener  <rguenther@suse.de>

        PR sanitizer/102515
        * c-typeck.c (build_binary_op): Call ubsan_instrument_division
        for division even for SANITIZE_SI_OVERFLOW.

2021-10-01  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_order): Set
        OMP_CLAUSE_ORDER_REPRODUCIBLE for explicit reproducible: modifier.

2021-09-28  Andrew Pinski  <apinski@marvell.com>

        PR c/32122
        * c-parser.c (c_parser_statement_after_labels): Pass
        the c_expr instead of the tree to c_finish_goto_ptr.
        * c-typeck.c (c_finish_goto_ptr): Change the second
        argument type to c_expr.
        * c-tree.h (c_finish_goto_ptr): Likewise.
        Error out if the expression was not of a pointer type.

2021-09-22  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_allocate): Parse allocate clause
        modifiers.

2021-09-18  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_order): Parse unconstrained
        and reproducible modifiers.
        (OMP_DISTRIBUTE_CLAUSE_MASK): Add order clause.

2021-09-18  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_default): Handle private and
        firstprivate arguments, adjust diagnostics on unknown argument.

2021-09-17  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_atomic): Reject atomic swap if capture
        is true.

2021-09-10  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_conditional_expression): If omp_atomic_lhs and
        cond.value is >, < or == with omp_atomic_lhs as one of the operands,
        don't call build_conditional_expr, instead build a COND_EXPR directly.
        (c_parser_binary_expression): Avoid calling parser_build_binary_op
        if omp_atomic_lhs even in more cases for >, < or ==.
        (c_parser_omp_atomic): Update function comment for OpenMP 5.1 atomics,
        parse OpenMP 5.1 atomics and fail, compare and weak clauses, allow
        acq_rel on atomic read/write and acq_rel/acquire clauses on update.
        * c-typeck.c (build_binary_op): For flag_openmp only handle
        MIN_EXPR/MAX_EXPR.

2021-09-07  Marcel Vollweiler  <marcel@codesourcery.com>

        * c-parser.c (c_parser_omp_flush): Parse 'seq_cst' clause on 'flush'
        directive.

2021-09-01  Iain Sandoe  <iain@sandoe.co.uk>

        * c-decl.c (enum deprecated_states): Add unavailable state.
        (merge_decls): Copy unavailability.
        (quals_from_declspecs): Handle unavailable case.
        (start_decl): Amend the logic handling suppression of nested
        deprecation states to include unavailability.
        (smallest_type_quals_location): Amend comment.
        (grokdeclarator): Handle the unavailable deprecation state.
        (declspecs_add_type): Set TREE_UNAVAILABLE from the decl specs.
        * c-tree.h (struct c_declspecs): Add unavailable_p.
        * c-typeck.c (build_component_ref): Handle unavailability.
        (build_external_ref): Likewise.

2021-09-01  Roger Sayle  <roger@nextmovesoftware.com>
            Joseph Myers  <joseph@codesourcery.com>

        PR c/79412
        * c-decl.c (duplicate_decls): On significant mismatches, mark the
        types of both (non-function) decls as error_mark_node, so that the
        middle-end can see the code is malformed.
        (free_attr_access_data): Don't process if the type has been set to
        error_mark_node.

2021-08-31  Marcel Vollweiler  <marcel@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_device): Parse device-modifiers 'device_num'
        and 'ancestor' in 'target device' clauses.

2021-08-23  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_num_tasks,
        c_parser_omp_clause_grainsize): Parse the optional strict: modifier.

2021-08-22  Martin Uecker  <muecker@gwdg.de>

        PR c/98397
        * c-typeck.c (comp_target_types): Change pedwarn to pedwarn_c11
        for pointers to arrays with qualifiers.
        (build_conditional_expr): For C23 don't lose qualifiers for pointers
        to arrays when the other pointer is a void pointer. Update warnings.
        (convert_for_assignment): Update warnings for C2X when converting from
        void* with qualifiers to a pointer to array with the same qualifiers.

2021-08-20  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_error): New function.
        (c_parser_pragma): Handle PRAGMA_OMP_ERROR.

2021-08-20  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_depend_sink): Reject spurious
        comma at the end of list.
        (c_parser_omp_requires): Likewise.

2021-08-19  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_requires): Don't call
        c_parser_peek_2nd_token and optionally consume token if current
        token is CPP_EOF, CPP_PRAGMA_EOL or CPP_CLOSE_PAREN.

2021-08-18  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_nothing): New function.
        (c_parser_pragma): Handle PRAGMA_OMP_NOTHING.

2021-08-18  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_statement_after_labels): Add restart label
        near the start of the function.  If c_parser_pragma returns false,
        goto restart.
        (c_parser_pragma): For PRAGMA_OMP_CANCELLATION_POINT return what
        c_parser_omp_cancellation_point returned.  For PRAGMA_OMP_DECLARE
        return what c_parser_omp_declare returned.  Return true instead of
        false after emitting errors that the directive is not allowed in
        pragma_stmt context.
        (c_parser_omp_ordered): Return true instead of
        false after emitting errors that the directive is not allowed in
        pragma_stmt context.
        (c_parser_omp_target_update): Likewise.
        (c_parser_omp_target_enter_data, c_parser_omp_target_exit_data):
        Change return type from tree to bool, return false if the
        directive should be ignored in pragma_stmt contexts.
        (c_parser_omp_target): Adjust callers of c_parser_omp_target_*_data,
        return their result directly.
        (c_parser_omp_cancellation_point): Change return type from void to
        bool, return false if the directive should be ignored in pragma_stmt
        contexts.
        (c_parser_omp_declare): Likewise.

2021-08-17  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (OMP_SCOPE_CLAUSE_MASK): Define.
        (c_parser_omp_scope): New function.
        (c_parser_omp_construct): Handle PRAGMA_OMP_SCOPE.

2021-08-12  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_name): Parse filter clause name.
        (c_parser_omp_clause_filter): New function.
        (c_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_FILTER.
        (OMP_MASKED_CLAUSE_MASK): Define.
        (c_parser_omp_masked): New function.
        (c_parser_omp_parallel): Handle parallel masked.
        (c_parser_omp_construct): Handle PRAGMA_OMP_MASKED.
        * c-typeck.c (c_finish_omp_clauses): Handle OMP_CLAUSE_FILTER.

2021-08-12  Martin Uecker  <muecker@gwdg.de>

        PR c/101838
        PR c/29970
        * c-typeck.c (c_expr_sizeof_type): Evaluate
        size expressions for structs of variable size.

2021-08-12  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_proc_bind): Accept
        'primary' as alias for 'master'.

2021-08-10  Martin Uecker  <muecker@gwdg.de>

        PR c/29970
        * c-typeck.c (c_expr_sizeof_expr): Evaluate
        size expressions for structs of variable size.

2021-08-06  Tamar Christina  <tamar.christina@arm.com>

        * c-decl.c (c_simulate_enum_decl): Pass vec<> by pointer.
        * c-tree.h (c_simulate_enum_decl): Likewise.

2021-08-06  Martin Sebor  <msebor@redhat.com>

        * c-parser.c (c_parser_declaration_or_fndef): Adjust by-value function
        vec arguments to by-reference.
        (c_finish_omp_declare_simd): Same.
        (c_parser_compound_statement_nostart): Same.
        (c_parser_for_statement): Same.
        (c_parser_objc_methodprotolist): Same.
        (c_parser_oacc_routine): Same.
        (c_parser_omp_for_loop): Same.
        (c_parser_omp_declare_simd): Same.

2021-07-21  Thomas Schwinge  <thomas@codesourcery.com>
            Joseph Myers  <joseph@codesourcery.com>
            Cesar Philippidis  <cesar@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_name): Handle 'nohost'.
        (c_parser_oacc_all_clauses): Handle 'PRAGMA_OACC_CLAUSE_NOHOST'.
        (OACC_ROUTINE_CLAUSE_MASK): Add 'PRAGMA_OACC_CLAUSE_NOHOST'.
        * c-typeck.c (c_finish_omp_clauses): Handle 'OMP_CLAUSE_NOHOST'.

2021-07-20  Martin Sebor  <msebor@redhat.com>

        * c-tree.h (c_build_function_call_vec): Adjust by-value argument to
        by-const-reference.
        * c-typeck.c (c_build_function_call_vec): Same.

2021-07-15  Martin Sebor  <msebor@redhat.com>

        PR c/101289
        PR c/97548
        * c-decl.c (get_parm_array_spec): Strip nops.

2021-07-06  Martin Sebor  <msebor@redhat.com>

        * c-objc-common.c (c_tree_printer): Remove support for %G and %K.

2021-07-02  Jakub Jelinek  <jakub@redhat.com>

        PR c/101297
        * c-parser.c (c_parser_omp_atomic): Consume comma only if it
        appears before a CPP_NAME.

2021-06-25  Martin Sebor  <msebor@redhat.com>

        * c-decl.c (pop_scope): Replace direct uses of TREE_NO_WARNING with
        warning_suppressed_p, suppress_warning, and copy_no_warning.
        (diagnose_mismatched_decls): Same.
        (duplicate_decls): Same.
        (grokdeclarator): Same.
        (finish_function): Same.
        (c_write_global_declarations_1): Same.
        * c-fold.c (c_fully_fold_internal): Same.
        * c-parser.c (c_parser_expr_no_commas): Same.
        (c_parser_postfix_expression): Same.
        * c-typeck.c (array_to_pointer_conversion): Same.
        (function_to_pointer_conversion): Same.
        (default_function_array_conversion): Same.
        (convert_lvalue_to_rvalue): Same.
        (default_conversion): Same.
        (build_indirect_ref): Same.
        (build_function_call_vec): Same.
        (build_atomic_assign): Same.
        (build_unary_op): Same.
        (c_finish_return): Same.
        (emit_side_effect_warnings): Same.
        (c_finish_stmt_expr): Same.
        (c_omp_clause_copy_ctor): Same.

2021-06-24  Jakub Jelinek  <jakub@redhat.com>

        PR c/101176
        * c-parser.c (c_parser_has_attribute_expression): Set source range for
        the result.

2021-06-24  Jakub Jelinek  <jakub@redhat.com>

        PR c/101171
        * c-typeck.c (build_c_cast): Don't call note_integer_operands on
        error_mark_node.

2021-06-24  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (omp_split_clauses): Pass C_ORT_OMP_TARGET instead of
        C_ORT_OMP for clauses on target construct.
        (OMP_TARGET_CLAUSE_MASK): Add in_reduction clause.
        (c_parser_omp_target): For non-combined target add
        map (always, tofrom:) clauses for OMP_CLAUSE_IN_REDUCTION.  Pass
        C_ORT_OMP_TARGET to c_finish_omp_clauses.
        * c-typeck.c (handle_omp_array_sections): Adjust ort handling
        for addition of C_ORT_OMP_TARGET and simplify, mapping clauses are
        never present on C_ORT_*DECLARE_SIMD.
        (c_finish_omp_clauses): Likewise.  Handle OMP_CLAUSE_IN_REDUCTION
        on C_ORT_OMP_TARGET, set OMP_CLAUSE_MAP_IN_REDUCTION on
        corresponding map clauses.

2021-06-21  Jakub Jelinek  <jakub@redhat.com>

        PR inline-asm/100785
        * c-typeck.c (c_mark_addressable): Diagnose trying to make
        bit-fields addressable.

2021-06-15  Robin Dapp  <rdapp@linux.ibm.com>

        * c-decl.c (merge_decls): Copy DECL_USER_ALIGN if DECL_ALIGN is
        similar.

2021-06-14  Tobias Burnus  <tobias@codesourcery.com>

        PR c/100913
        * c-parser.c (c_parser_omp_clause_affinity): No need to set iterator
        var in the error case.

2021-06-07  Eric Botcazou  <ebotcazou@adacore.com>

        PR c/100920
        * c-typeck.c (convert_for_assignment): Test fndecl_built_in_p to
        spot built-in functions.

2021-06-06  Jakub Jelinek  <jakub@redhat.com>

        PR c/100902
        * c-parser.c (c_parser_omp_target): Call c_omp_adjust_map_clauses
        even when target is combined with other constructs.

2021-06-06  Eric Botcazou  <ebotcazou@adacore.com>

        PR c/100920
        * c-decl.c (finish_struct): Fix thinko in previous change.
        * c-typeck.c (convert_for_assignment): Do not warn on pointer
        assignment and initialization for storage order purposes if the
        RHS is a call to a DECL_IS_MALLOC function.

2021-06-04  Martin Sebor  <msebor@redhat.com>

        PR c/100783
        * c-objc-common.c (print_type): Handle erroneous types.

2021-06-03  Jakub Jelinek  <jakub@redhat.com>

        PR c++/100859
        * c-typeck.c (c_finish_omp_clauses): Move OMP_CLAUSE_AFFINITY
        after depend only cases.

2021-05-31  Richard Biener  <rguenther@suse.de>

        PR c++/88601
        * c-decl.c (names_builtin_p): Handle RID_BUILTIN_SHUFFLEVECTOR.
        * c-parser.c (c_parser_postfix_expression): Likewise.

2021-05-28  Richard Biener   <rguenther@suse.de>

        PR c/100803
        * gimple-parser.c (c_parser_gimple_paren_condition): Diagnose
        invalid if conditions.

2021-05-28  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/99928
        * c-typeck.c (handle_omp_array_sections): Copy OMP_CLAUSE_MAP_IMPLICIT.
        (c_finish_omp_clauses): Move not just OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT
        marked clauses last, but also OMP_CLAUSE_MAP_IMPLICIT.  Add
        map_firstprivate_head bitmap, set it for GOMP_MAP_FIRSTPRIVATE_POINTER
        maps and silently remove OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT if it is
        present too.  For OMP_CLAUSE_MAP_IMPLICIT silently remove the clause
        if present in map_head, map_field_head or map_firstprivate_head
        bitmaps.

2021-05-28  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_affinity): New.
        (c_parser_omp_clause_name, c_parser_omp_variable_list,
        c_parser_omp_all_clauses, OMP_TASK_CLAUSE_MASK): Handle affinity clause.
        * c-typeck.c (handle_omp_array_sections_1, handle_omp_array_sections,
        c_finish_omp_clauses): Likewise.

2021-05-26  Eric Botcazou  <ebotcazou@adacore.com>

        PR c/100653
        * c-decl.c (finish_struct): Warn for a union containing an aggregate
        field with a differing scalar storage order.

2021-05-21  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/99928
        * c-typeck.c (c_finish_omp_clauses): Move firstprivate clauses with
        OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT to the end of the chain.  Don't error
        if a decl is mentioned both in map clause and in such firstprivate
        clause unless OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT_TARGET is also set.

2021-05-19  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/99928
        * c-parser.c (c_parser_omp_master): Set OMP_MASTER_COMBINED on
        master when combined with taskloop.
        (c_parser_omp_parallel): Don't set OMP_PARALLEL_COMBINED on
        parallel master when not combined with taskloop.

2021-05-18  Richard Biener  <rguenther@suse.de>

        PR c/100522
        * gimple-parser.c (c_parser_gimple_postfix_expression_after_primary):
        Diagnose calls to non-functions.
        (c_parser_gimple_statement): Diagnose unexpected assignment RHS.

2021-05-17  Richard Biener  <rguenther@suse.de>

        PR c/100625
        * gimple-parser.c (c_parser_gimple_label): Avoid building
        a GIMPLE label with NULL label decl.

2021-05-13  Martin Sebor  <msebor@redhat.com>

        PR c/100550
        * c-decl.c (get_parm_array_spec): Avoid erroneous VLA bounds.

2021-05-12  Marcel Vollweiler  <marcel@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_map): Support map-type-modifier
        'close'.

2021-05-10  Martin Liska  <mliska@suse.cz>

        * c-aux-info.c (affix_data_type): Use startswith
        function instead of strncmp.
        * c-typeck.c (build_function_call_vec): Likewise.
        * gimple-parser.c (c_parser_gimple_parse_bb_spec): Likewise.

2021-05-07  Eric Botcazou  <ebotcazou@adacore.com>

        * c-typeck.c (build_unary_op) <ADDR_EXPR>: Do not issue an error
        on the address of a pointer field in a record with reverse SSO.

2021-05-04  Tobias Burnus  <tobias@codesourcery.com>

        * c-typeck.c (c_finish_omp_clauses): Accept float + complex
        for || and && reductions.

2021-04-29  Joseph Myers  <joseph@codesourcery.com>

        * c-typeck.c (function_types_compatible_p): For C2X, treat
        unprototyped function as compatible with non-variadic prototyped
        function even if some argument types are changed by the default
        argument promotions.

2021-04-15  Martin Sebor  <msebor@redhat.com>

        PR c/99420
        PR c/99972
        * c-decl.c (pushdecl): Always propagate type attribute.

2021-04-15  Richard Sandiford  <richard.sandiford@arm.com>

        PR c/98852
        * c-typeck.c (c_common_type): Do not drop attributes that
        affect type identity.

2021-04-10  Jakub Jelinek  <jakub@redhat.com>

        PR c/99990
        * c-decl.c (finish_decl): Don't overwrite TREE_TYPE of
        error_mark_node.

2021-03-25  Jakub Jelinek  <jakub@redhat.com>

        PR c++/99565
        * c-typeck.c (build_conditional_expr): Pass OEP_ADDRESS_OF_SAME_FIELD
        to operand_equal_p.

2021-03-19  Jakub Jelinek  <jakub@redhat.com>

        PR c/99588
        * c-typeck.c (mark_exp_read): Recognize what build_atomic_assign
        with modifycode NOP_EXPR produces and mark the _Atomic var as read
        if found.
        (build_atomic_assign): For modifycode of NOP_EXPR, use COMPOUND_EXPRs
        rather than STATEMENT_LIST.  Otherwise call mark_exp_read on lhs.
        Set TREE_SIDE_EFFECTS on the TARGET_EXPR.

2021-03-15  Tobias Burnus  <tobias@codesourcery.com>

        PR c++/99509
        * c-decl.c (finish_decl): For 'omp declare target implicit' vars,
        ensure that the varpool node is marked as offloadable.

2021-03-05  Tobias Burnus  <tobias@codesourcery.com>

        PR c/99137
        * c-parser.c (c_parser_oacc_clause_async): Reject comma expressions.

2021-02-24  Martin Sebor  <msebor@redhat.com>

        PR middle-end/97172
        * c-decl.c (free_attr_access_data): Clear attribute arg spec.

2021-02-18  Jakub Jelinek  <jakub@redhat.com>

        PR c/99136
        * c-typeck.c (c_finish_return): Don't wrap retval into
        EXCESS_PRECISION_EXPR in functions that return void.

2021-02-11  Marek Polacek  <polacek@redhat.com>

        * c-parser.c (c_parser_if_statement): Use vec_free.

2021-02-04  Martin Sebor  <msebor@redhat.com>

        PR c/97882
        * c-decl.c (locate_old_decl): Add type to diagnostic output.
        (diagnose_mismatched_decls): Same.
        (start_function): Introduce temporaries for better readability.
        * c-typeck.c (comptypes_internal): Only consider complete enum
        types in comparisons with integers.

2021-02-01  Martin Sebor  <msebor@redhat.com>

        PR middle-end/97172
        * c-decl.c (free_attr_access_data): New function.
        (c_parse_final_cleanups): Call free_attr_access_data.

2021-01-16  Kwok Cheung Yeung  <kcy@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_detach): New.
        (c_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DETACH clause.
        (OMP_TASK_CLAUSE_MASK): Add mask for PRAGMA_OMP_CLAUSE_DETACH.
        * c-typeck.c (c_finish_omp_clauses): Handle PRAGMA_OMP_CLAUSE_DETACH
        clause.  Prevent use of detach with mergeable and overriding the
        data sharing mode of the event handle.

2021-01-15  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (c_finish_omp_clauses): For reduction build array with
        unqualified element type and then call c_build_qualified_type on the
        ARRAY_TYPE.

2021-01-07  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_compound_statement): Only
        reallocate loop array if it is too small.

2020-12-16  Martin Uecker  <muecker@gwdg.de>

        PR c/98047
        * c-typeck.c (build_modify_expr): Drop qualifiers.

2020-12-16  Martin Uecker  <muecker@gwdg.de>

        PR c/98260
        * c-parser.c (c_parser_expression): Look into
        nop expression when marking expressions as read.

2020-12-14  Martin Liska  <mliska@suse.cz>

        PR sanitizer/98204
        * c-typeck.c (pointer_diff): Do not emit a top-level
        sanitization.
        (build_binary_op): Likewise.

2020-12-09  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.c (c_parser_omp_allocate): New.
        (c_parser_omp_construct): Call it.

2020-12-09  Richard Biener  <rguenther@suse.de>

        PR c/98200
        * gimple-parser.c (c_parser_gimple_postfix_expression): Return
        early on error.

2020-12-07  Martin Uecker  <muecker@gwdg.de>

        PR c/97981
        * c-typeck.c (convert_lvalue_to_rvalue): Move the code
        that drops qualifiers to the end of the function.

2020-11-26  Martin Uecker  <muecker@gwdg.de>

        PR c/65455
        PR c/92935
        * c-parser.c (c_parser_declaration_or_fndef): Remove
        redundant code to drop qualifiers of _Atomic types for __auto_type.
        (c_parser_typeof_specifier): Do not drop qualifiers of _Atomic
        types for __typeof__.

2020-11-24  Jakub Jelinek  <jakub@redhat.com>

        PR c/97958
        * c-parser.c (c_parser_binary_expression): For omp atomic binary
        expressions, use make_node instead of build2 to avoid checking build2
        performs.

2020-11-23  Joseph Myers  <joseph@codesourcery.com>

        PR c/95630
        * c-typeck.c (build_binary_op): Use pedwarn_c99 with OPT_Wpedantic
        for comparisons of complete and incomplete pointers.

2020-11-21  Aaron Sawdey  <acsawdey@linux.ibm.com>

        * c-aux-info.c (gen_type): Support opaque types.

2020-11-20  Martin Sebor  <msebor@redhat.com>

        PR middle-end/97879
        * c-decl.c (start_function): Set ATTR_FLAG_INTERNAL in flags.

2020-11-20  Jakub Jelinek  <jakub@redhat.com>

        PR other/97911
        * Make-lang.in (c.serial): Change from goal to a variable.
        (.PHONY): Drop c.serial.

2020-11-20  Martin Uecker  <muecker@gwdg.de>

        * c-typeck.c (convert_lvalue_to_rvalue): Drop qualifiers.

2020-11-19  Jakub Jelinek  <jakub@redhat.com>

        PR c/97860
        * c-decl.c (get_parm_array_spec): Bail out of nelts is
        error_operand_p.

2020-11-18  Jakub Jelinek  <jakub@redhat.com>

        * Make-lang.in (c.serial): New goal.
        (.PHONY): Add c.serial c.prev.
        (cc1$(exeext)): Call LINK_PROGRESS.

2020-11-13  Vladimir N. Makarov  <vmakarov@redhat.com>

        * c-parser.c (c_parser_asm_statement): Parse outputs for asm
        goto too.
        * c-typeck.c (build_asm_expr): Remove an assert checking output
        absence for asm goto.

2020-11-13  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (c_finish_omp_clauses): Don't clear
        OMP_CLAUSE_REDUCTION_INSCAN unless reduction_seen == -2.

2020-11-13  Iain Sandoe  <iain@sandoe.co.uk>

        PR objc/77404
        * c-parser.c (c_parser_objc_class_definition): Pass the
        location of the class name to the interface declaration.

2020-11-10  Strager Neds  <strager.nds@gmail.com>

        * c-decl.c (merge_decls): Use new overload of
        set_decl_section_name.

2020-11-10  Chung-Lin Tang  <cltang@codesourcery.com>

        * c-parser.c (c_parser_omp_target_data): Add use of
        new c_omp_adjust_map_clauses function. Add GOMP_MAP_ATTACH_DETACH as
        handled map clause kind.
        (c_parser_omp_target_enter_data): Likewise.
        (c_parser_omp_target_exit_data): Likewise.
        (c_parser_omp_target): Likewise.
        * c-typeck.c (handle_omp_array_sections): Adjust COMPONENT_REF case to
        use GOMP_MAP_ATTACH_DETACH map kind for C_ORT_OMP region type.
        (c_finish_omp_clauses): Adjust bitmap checks to allow struct decl and
        same struct field access to co-exist on OpenMP construct.

2020-11-07  Martin Uecker  <muecker@gwdg.de>

        * c-parser.c (c_parser_label): Implement mixing of labels and code.
        (c_parser_all_labels): Likewise.

2020-11-06  Iain Sandoe  <iain@sandoe.co.uk>

        * c-parser.c (c_parser_objc_at_property_declaration):
        Improve parsing fidelity. Associate better location info
        with @property attributes.  Clean up the interface to
        objc_add_property_declaration ().

2020-11-06  Nathan Sidwell  <nathan@acm.org>

        * c-decl.c (diagnose_mismatched_decls): Rename
        DECL_IS_BUILTIN->DECL_IS_UNDECLARED_BUILTIN.
        (warn_if_shadowing, implicitly_declare, names_builtin_p)
        (collect_source_refs): Likewise.
        * c-typeck.c (inform_declaration, inform_for_arg)
        (convert_for_assignment): Likewise.

2020-11-06  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.c (c_parser_omp_atomic): Add openacc parameter and update
        OpenACC matching.
        (c_parser_omp_construct): Update call.

2020-11-04  Jakub Jelinek  <jakub@redhat.com>

        PR c++/97670
        * c-typeck.c (c_finish_omp_clauses): Look through array reductions to
        find underlying decl to clear in the aligned_head bitmap.

2020-11-04  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.c (handle_nodiscard_attribute): New.
        (std_attribute_table): Add nodiscard.
        * c-parser.c (c_parser_std_attribute): Expect argument to
        nodiscard attribute to be a string.  Do not special-case ignoring
        nodiscard.
        * c-typeck.c (maybe_warn_nodiscard): New.
        (build_compound_expr, emit_side_effect_warnings): Call
        maybe_warn_nodiscard.
        (c_process_expr_stmt, c_finish_stmt_expr): Also call
        emit_side_effect_warnings if warn_unused_result.

2020-10-29  Asher Gordon  <AsDaGo@posteo.net>

        * c-typeck.c (free_all_tagged_tu_seen_up_to): Replace free
        with XDELETE.
        (finish_init): Likewise.
        (pop_init_level): Likewise.

2020-10-28  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.c (store_parm_decls_newstyle): Use pedwarn_c11 not
        error_at for omitted parameter name.

2020-10-28  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_name): Handle allocate.
        (c_parser_omp_clause_allocate): New function.
        (c_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_ALLOCATE.
        (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
        OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK,
        OMP_TASK_CLAUSE_MASK, OMP_TASKGROUP_CLAUSE_MASK,
        OMP_DISTRIBUTE_CLAUSE_MASK, OMP_TEAMS_CLAUSE_MASK,
        OMP_TARGET_CLAUSE_MASK, OMP_TASKLOOP_CLAUSE_MASK): Add
        PRAGMA_OMP_CLAUSE_ALLOCATE.
        * c-typeck.c (c_finish_omp_clauses): Handle OMP_CLAUSE_ALLOCATE.

2020-10-27  Joseph Myers  <joseph@codesourcery.com>

        * c-parser.c (c_parser_std_attribute_specifier): Allow duplicate
        standard attributes.

2020-10-23  Marek Polacek  <polacek@redhat.com>

        PR c++/91741
        * c-parser.c (c_parser_binary_expression): Implement -Wsizeof-array-div.
        (c_parser_postfix_expression): Set PAREN_SIZEOF_EXPR.
        (c_parser_expr_list): Handle PAREN_SIZEOF_EXPR like SIZEOF_EXPR.
        * c-tree.h (char_type_p): Declare.
        * c-typeck.c (char_type_p): No longer static.

2020-10-23  Martin Sebor  <msebor@redhat.com>

        PR middle-end/97552
        * c-decl.c (get_parm_array_spec): Handle static VLA parameters.

2020-09-19  Martin Sebor  <msebor@redhat.com>

        PR c/50584
        * c-decl.c (lookup_last_decl): Define new function.
        (c_decl_attributes): Call it.
        (start_decl): Add argument and use it.
        (finish_decl): Call build_attr_access_from_parms and decl_attributes.
        (get_parm_array_spec): Define new function.
        (push_parm_decl): Call get_parm_array_spec.
        (start_function): Call warn_parm_array_mismatch.  Build attribute
        access and add it to current function.
        * c-parser.c (c_parser_declaration_or_fndef): Diagnose mismatches
        in forms of array parameters.
        * c-tree.h (start_decl): Add argument.

2020-09-19  Sandra Loosemore  <sandra@codesourcery.com>

        * c-decl.c (c_break_label, c_cont_label): Delete, and replace
        with...
        (in_statement): New.
        (start_function): Adjust for above change.
        (c_push_function_context, c_pop_function_context): Likewise.
        * c-lang.h (struct language_function): Likewise.
        * c-objc-common.h (LANG_HOOKS_BLOCK_MAY_FALLTHRU): Define.
        * c-parser.c (objc_foreach_break_label, objc_foreach_continue_label):
        New.
        (c_parser_statement_after_labels): Adjust calls to c_finish_bc_stmt.
        (c_parser_switch_statement): Adjust break/switch context handling
        and calls to renamed functions.
        (c_parser_while_statement): Adjust break/switch context handling and
        build a WHILE_STMT.
        (c_parser_do_statement): Ditto, with DO_STMT respectively.
        (c_parser_for_statement): Ditto, with FOR_STMT respectively.
        (c_parser_omp_for_loop): Adjust break/switch context handling.
        * c-tree.h (c_break_label, c_cont_label): Delete.
        (IN_SWITCH_STMT, IN_ITERATION_STMT): Define.
        (IN_OMP_BLOCK, IN_OMP_FOR, IN_OBJC_FOREACH): Define.
        (in_statement, switch_statement_break_seen_p): Declare.
        (c_start_case, c_finish_case): Renamed to...
        (c_start_switch, c_finish_switch).
        (c_finish_bc_stmt): Adjust arguments.
        * c-typeck.c (build_function_call_vec): Don't try to print
        statements with %qE format.
        (struct c_switch):  Rename switch_expr field to switch_stmt.
        Add break_stmt_seen_p field.
        (c_start_case): Rename to c_start_switch.  Build a SWITCH_STMT
        instead of a SWITCH_EXPR.  Update for changes to struct c_switch.
        (do_case): Update for changes to struct c_switch.
        (c_finish_case): Rename to c_finish_switch.  Update for changes to
        struct c_switch and change of representation from SWITCH_EXPR to
        SWITCH_STMT.
        (c_finish_loop): Delete.
        (c_finish_bc_stmt): Update to reflect changes to break/continue
        state representation.  Build a BREAK_STMT or CONTINUE_STMT instead
        of a GOTO_EXPR except for objc foreach loops.

2020-09-01  Jakub Jelinek  <jakub@redhat.com>

        PR c++/96867
        * c-typeck.c (handle_omp_array_sections_1): Test C_ARRAY_PARAMETER
        only on PARM_DECLs.

2020-08-28  Martin Sebor  <msebor@redhat.com>

        PR c/96596
        * c-decl.c (match_builtin_function_types): Avoid dealing with erroneous
        argument type.

2020-08-27  Martin Liska  <mliska@suse.cz>

        * gimple-parser.c (c_parser_gimple_compound_statement): Set exact argument of a vector
        growth function to true.

2020-08-25  Tobias Burnus  <tobias@codesourcery.com>

        PR c/96678
        * c-typeck.c (handle_omp_array_sections_1): Talk about
        array function parameter in the error message.

2020-08-18  Jakub Jelinek  <jakub@redhat.com>

        PR c/96571
        * c-parser.c (c_parser_generic_selection): Change match_found from bool
        to int, holding index of the match.  Call mark_exp_read on the selector
        expression and on expressions other than the selected one.

2020-08-01  Richard Sandiford  <richard.sandiford@arm.com>

        PR c/96377
        * c-typeck.c (process_init_element): Split test for whether to
        recurse into a record, union or array into...
        (initialize_elementwise_p): ...this new function.  Don't recurse
        into a vector type if the initialization value is also a vector.

2020-07-31  Richard Biener  <rguenther@suse.de>

        PR debug/96383
        * c-objc-common.h (LANG_HOOKS_FINALIZE_EARLY_DEBUG):
        Define to c_common_finalize_early_debug.

2020-07-22  Tobias Burnus  <tobias@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_hint): Require nonnegative hint clause.
        (c_parser_omp_critical): Permit hint(0) clause without named critical.
        (c_parser_omp_construct): Don't assert if error_mark_node is returned.

2020-07-21  Sunil K Pandey  <skpgkp2@gmail.com>

        PR target/95237
        * c-decl.c (finish_decl): Call target hook
        lower_local_decl_alignment to lower local decl alignment.

2020-07-09  Julian Brown  <julian@codesourcery.com>
            Thomas Schwinge  <thomas@codesourcery.com>

        PR middle-end/95270
        * c-typeck.c (c_finish_omp_clauses): Set OMP_CLAUSE_SIZE (bias) to zero
        for standalone attach/detach clauses.

2020-07-08  Eric Botcazou  <ebotcazou@adacore.com>

        * c-typeck.c (convert_for_assignment): If -Wscalar-storage-order is
        set, warn for conversion between pointers that point to incompatible
        scalar storage orders.

2020-07-07  Kaipeng Zhou  <zhoukaipeng3@huawei.com>

        * c-parser.c (c_parser_statement_after_labels): Pass correct
        parameters to c_parser_do_statement.

2020-06-16  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_expr_no_commas): Save, clear and restore
        c_in_omp_for.
        (c_parser_omp_for_loop): Set c_in_omp_for around some calls to avoid
        premature c_fully_fold.  Defer explicit c_fully_fold calls to after
        c_finish_omp_for.
        * c-tree.h (c_in_omp_for): Declare.
        * c-typeck.c (c_in_omp_for): Define.
        (build_modify_expr): Avoid c_fully_fold if c_in_omp_for.
        (digest_init): Likewise.
        (build_binary_op): Likewise.

2020-06-16  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_schedule): Reject modifier separated
        from kind by comma rather than colon.

2020-06-05  Mark Wielaard  <mark@klomp.org>

        * c-decl.c (implicit_decl_warning): When warned and olddecl is
        an undeclared builtin, then add a fixit header hint, if found.
        (implicitly_declare): Add OPT_Wbuiltin_declaration_mismatch to
        warning_at about implicit builtin declaration type mismatch.

2020-06-03  Mark Wielaard  <mark@klomp.org>

        * c-parser.c (struct c_parser): Add seen_string_literal
        bitfield.
        (c_parser_consume_token): Reset seen_string_literal.
        (c_parser_error_richloc): Add name_hint if seen_string_literal
        and next token is a CPP_NAME and we have a missing header
        suggestion for the name.
        (c_parser_string_literal): Set seen_string_literal.

2020-06-03  Mark Wielaard  <mark@klomp.org>

        * c-parser.c (c_parser_postfix_expression_after_primary): Add
        scope with matching_parens after CPP_OPEN_PAREN.

2020-06-03  Tobias Burnus  <tobias@codesourcery.com>

        * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_MAPPING): Redefine.

2020-05-28  Nicolas Bértolo  <nicolasbertolo@gmail.com>

        * Make-lang.in: Remove extra slash.

2020-05-19  Martin Liska  <mliska@suse.cz>

        * c-parser.c: Fix typo.

2020-05-14  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_target): Set cfun->has_omp_target.

2020-05-07  Richard Biener  <rguenther@suse.de>

        PR middle-end/94703
        * gimple-parser.c (c_parser_parse_ssa_name): Do not set
        DECL_GIMPLE_REG_P.

2020-04-30  Jakub Jelinek  <jakub@redhat.com>

        PR c/94842
        * c-decl.c (set_labels_context_r): In addition to context-less
        LABEL_DECLs adjust also LABEL_DECLs with context equal to
        parent function if any.
        (store_parm_decls): Adjust comment.

2020-04-19  Jakub Jelinek  <jakub@redhat.com>

        PR objc/94637
        * c-parser.c (c_parser_objc_selector_arg): Handle CPP_SCOPE like
        two CPP_COLON tokens.

2020-04-17  Jakub Jelinek  <jakub@redhat.com>

        PR other/94629
        * c-parser.c (c_parser_oacc_routine): Remove redundant assignment
        to data.clauses.

2020-04-15  Jakub Jelinek  <jakub@redhat.com>

        PR c/94593
        * c-parser.c (c_parser_pragma) <case PRAGMA_OMP_REQUIRES>: Reject
        requires directive when not at file scope.

2020-04-08  Tobias Burnus  <tobias@codesourcery.com>

        PR middle-end/94120
        * c-decl.c (c_check_in_current_scope): New function.
        * c-tree.h (c_check_in_current_scope): Declare it.
        * c-parser.c (c_parser_oacc_declare): Add check that variables
        are declared in the same scope as the directive. Fix handling
        of namespace vars.

2020-04-07  Jakub Jelinek  <jakub@redhat.com>

        PR c++/94512
        * c-parser.c (c_parser_omp_parallel): Set OMP_PARALLEL_COMBINED
        if c_parser_omp_master succeeded.

2020-03-23  Jakub Jelinek  <jakub@redhat.com>

        PR gcov-profile/94029
        PR c/94239
        * c-parser.c (c_parser_declaration_or_fndef): Initialize endloc to
        the function_start_locus location.  Don't do that afterwards for the
        __GIMPLE body parsing.

2020-03-19  Jakub Jelinek  <jakub@redhat.com>

        PR gcov-profile/94029
        * c-tree.h (finish_function): Add location_t argument defaulted to
        input_location.
        * c-parser.c (c_parser_compound_statement): Add endlocp argument and
        set it to the locus of closing } if non-NULL.
        (c_parser_compound_statement_nostart): Return locus of closing }.
        (c_parser_parse_rtl_body): Likewise.
        (c_parser_declaration_or_fndef): Propagate locus of closing } to
        finish_function.
        * c-decl.c (finish_function): Add end_loc argument, use it instead of
        input_location to set function_end_locus.

2020-03-17  Jakub Jelinek  <jakub@redhat.com>

        PR c/94172
        * c-tree.h (C_TYPE_INCOMPLETE_VARS): Define to TYPE_LANG_SLOT_1
        instead of TYPE_VFIELD, and support it on {RECORD,UNION,ENUMERAL}_TYPE.
        (TYPE_ACTUAL_ARG_TYPES): Check that it is only used on FUNCTION_TYPEs.
        * c-decl.c (pushdecl): Push C_TYPE_INCOMPLETE_VARS also to
        ENUMERAL_TYPEs.
        (finish_incomplete_vars): New function, moved from finish_struct.  Use
        relayout_decl instead of layout_decl.
        (finish_struct): Remove obsolete comment about C_TYPE_INCOMPLETE_VARS
        being TYPE_VFIELD.  Use finish_incomplete_vars.
        (finish_enum): Clear C_TYPE_INCOMPLETE_VARS.  Call
        finish_incomplete_vars.
        * c-typeck.c (c_build_qualified_type): Clear C_TYPE_INCOMPLETE_VARS
        also on ENUMERAL_TYPEs.

2020-03-16  Jakub Jelinek  <jakub@redhat.com>

        PR c/94179
        * c-fold.c (c_fully_fold_internal): Handle MEM_REF.

2020-03-13  Martin Sebor  <msebor@redhat.com>

        PR c/94040
        * c-decl.c (builtin_structptr_type_count): New constant.
        (match_builtin_function_types): Reject decls that are incompatible
        in types pointed to by pointers.
        (diagnose_mismatched_decls): Adjust comments.

2020-03-05  Joseph Myers  <joseph@codesourcery.com>

        PR c/93577
        * c-typeck.c (pop_init_level): Do not diagnose initializers as
        empty when initialized type is error_mark_node.
        (set_designator, process_init_element): Ignore initializers for
        elements of a variable-size type or of error_mark_node.

2020-03-01  Martin Sebor  <msebor@redhat.com>

        PR middle-end/93926
        * c-decl.c (types_close_enough_to_match): New function.
        (match_builtin_function_types):
        (diagnose_mismatched_decls): Add missing inform call to a warning.

2020-03-01  Martin Sebor  <msebor@redhat.com>

        PR c/93812
        * c-typeck.c (build_functype_attribute_variant): New function.
        (composite_type): Call it.

2020-02-25  Jakub Jelinek  <jakub@redhat.com>

        PR other/93912
        * gimple-parser.c (c_parser_gimple_parse_bb_spec_edge_probability):
        Rename last argument from probablity to probability.

2020-02-13  Jakub Jelinek  <jakub@redhat.com>

        PR c/93576
        * c-decl.c (grokdeclarator): If this_size_varies, only push size into
        *expr if it has side effects.

2020-01-30  Jeff Law  <law@redhat.com>

        PR c/88660
        * c-parser.c (c_parser_switch_statement): Make sure to request
        marking the switch expr as used.

2020-01-22  Joseph Myers  <joseph@codesourcery.com>

        PR c/93348
        * c-typeck.c (build_c_cast): Call remove_c_maybe_const_expr on
        argument with integer operands.

2020-01-16  Kerem Kat  <keremkat@gmail.com>

        PR c/92833
        * c-parser.c (c_parser_consume_token): Fix peeked token stack pop
        to support 4 available tokens.

2020-01-15  Joseph Myers  <joseph@codesourcery.com>

        PR c/93072
        * c-decl.c (pushdecl): Use TREE_PUBLIC, not DECL_EXTERNAL, to
        determine whether to set DECL_CONTEXT.

2020-01-13  Joseph Myers  <joseph@codesourcery.com>

        PR c/93241
        * c-typeck.c (build_c_cast): Check for expressions with integer
        operands that can occur in an unevaluated part of an integer
        constant expression and call note_integer_operands as needed.

2019-01-08  Richard Biener  <rguenther@suse.de>

        PR middle-end/93199
        * gimple-parser.c (c_parser_parse_gimple_body): Remove __PHI IFN
        permanently.

2020-01-01  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.

2019-12-20  Eric Botcazou  <ebotcazou@adacore.com>

        * c-decl.c (collect_source_ref_cb): Delete.
        (for_each_global_decl): Rename into...
        (collect_source_refs): ...this.  Call collect_source_ref directly.
        (c_parse_final_cleanups): Always call collect_source_ref on the main
        input filename.

2019-12-19  Julian Brown  <julian@codesourcery.com>
            Cesar Philippidis  <cesar@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_name): Add parsing of attach and
        detach clauses.
        (c_parser_omp_variable_list): Add ALLOW_DEREF optional parameter.
        Allow deref (->) in variable lists if true.
        (c_parser_omp_var_list_parens): Add ALLOW_DEREF optional parameter.
        Pass to c_parser_omp_variable_list.
        (c_parser_oacc_data_clause): Support attach and detach clauses.  Update
        call to c_parser_omp_variable_list.
        (c_parser_oacc_all_clauses): Support attach and detach clauses.
        (OACC_DATA_CLAUSE_MASK, OACC_ENTER_DATA_CLAUSE_MASK,
        OACC_KERNELS_CLAUSE_MASK, OACC_PARALLEL_CLAUSE_MASK,
        OACC_SERIAL_CLAUSE_MASK): Add PRAGMA_OACC_CLAUSE_ATTACH.
        (OACC_EXIT_DATA_CLAUSE_MASK): Add PRAGMA_OACC_CLAUSE_DETACH.
        * c-typeck.c (handle_omp_array_sections_1): Reject subarrays for attach
        and detach.  Support deref.
        (handle_omp_array_sections): Use GOMP_MAP_ATTACH_DETACH instead of
        GOMP_MAP_ALWAYS_POINTER for OpenACC.
        (c_oacc_check_attachments): New function.
        (c_finish_omp_clauses): Check attach/detach arguments for being
        pointers using above.  Support deref.

2019-12-19  Julian Brown  <julian@codesourcery.com>
            Maciej W. Rozycki  <macro@codesourcery.com>
            Tobias Burnus  <tobias@codesourcery.com>
            Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_name): Support no_create.
        (c_parser_oacc_data_clause): Likewise.
        (c_parser_oacc_all_clauses): Likewise.
        (OACC_DATA_CLAUSE_MASK, OACC_KERNELS_CLAUSE_MASK)
        (OACC_PARALLEL_CLAUSE_MASK, OACC_SERIAL_CLAUSE_MASK): Add
        PRAGMA_OACC_CLAUSE_NO_CREATE.
        * c-typeck.c (handle_omp_array_sections): Support
        GOMP_MAP_NO_ALLOC.

2019-12-09  David Malcolm  <dmalcolm@redhat.com>

        * c-objc-common.c (range_label_for_type_mismatch::get_text):
        Replace label_text ctor calls.

2019-12-04  Joseph Myers  <joseph@codesourcery.com>

        PR c/36941
        PR c/88827
        * c-typeck.c (convert_lvalue_to_rvalue): Call
        require_complete_type for arguments not of void types.
        (build_indirect_ref): Do not diagnose dereferencing pointers to
        incomplete types.
        * c-tree.h (C_TYPE_ERROR_REPORTED): Remove.

2019-12-03  Joseph Myers  <joseph@codesourcery.com>

        PR c/88704
        * c-decl.c (store_parm_decls_oldstyle): Diagnose use of [*] in
        old-style parameter definitions.

2019-12-01  Sandra Loosemore  <sandra@codesourcery.com>

        PR target/92499

        * c-decl.c (flexible_array_type_p): Move to common code.

2019-11-30  Richard Sandiford  <richard.sandiford@arm.com>

        * c-decl.c (start_decl): Allow initialization of variables whose
        size is a POLY_INT_CST.
        (finish_decl): Use verify_type_context to check whether the target
        allows variables with a particular type to have static or thread-local
        storage duration.  Don't raise a second error if such variables do
        not have a constant size.
        (grokdeclarator): Use verify_type_context to check whether the
        target allows fields or array elements to have a particular type.
        * c-typeck.c (pointer_diff): Use verify_type_context to test whether
        the target allows pointer difference for the types involved.
        (build_unary_op): Likewise for pointer increment and decrement.

2019-11-29  Joseph Myers  <joseph@codesourcery.com>

        * c-parser.c (struct c_parser): Add members raw_tokens and
        raw_tokens_used.
        (c_lex_one_token): Add argument raw.  Handle lexing raw tokens and
        using previously-lexed raw tokens.
        (c_parser_peek_nth_token_raw)
        (c_parser_check_balanced_raw_token_sequence): New functions.
        (c_parser_nth_token_starts_std_attributes): Use
        c_parser_check_balanced_raw_token_sequence for Objective-C.

2019-11-25  Joseph Myers  <joseph@codesourcery.com>

        PR c/91985
        * c-decl.c (finish_declspecs): Use int instead of decimal
        floating-point types if decimal floating-point not supported.

2019-11-25  Joseph Myers  <joseph@codesourcery.com>

        * c-tree.h (struct c_declarator): Use a structure for id member.
        * c-decl.c (grokdeclarator): Extract attributes from cdk_id
        declarators at the start, not when handling individual declarators
        later.  Use u.id.id instead of u.id.
        (grokfield): Use u.id.id instead of u.id.
        (build_id_declarator): Set u.id.id and u.id.attrs.
        (finish_declspecs): Handle postfix attributes in case of typedef
        name or typeof used.
        * c-parser.c (c_parser_direct_declarator)
        (c_parser_direct_declarator_inner): Place declarator for
        attributes inside that for function or array, not outside.  Set
        u.id.attrs for identifiers.
        (c_parser_parameter_declaration): Use u.id.id instead of u.id.
        * gimple-parser.c (c_parser_gimple_declaration): Use u.id.id
        instead of u.id.

2019-11-22  Jakub Jelinek  <jakub@redhat.com>

        PR c/90677
        * c-decl.c (identifier_global_tag): Define.

2019-11-20  Richard Biener  <rguenther@suse.de>

        PR c/92088
        * c-decl.c (grokdeclarator): Prevent inlining of nested
        function with VLA arguments.

2019-11-20  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.c (c_warn_type_attributes): New function.
        (groktypename, grokdeclarator, finish_declspecs): Call
        c_warn_type_attributes before applying attributes to types.
        * c-tree.h (c_warn_type_attributes): Declare.

2019-11-19  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.c (c_warn_unused_attributes): Use pedwarn not warning for
        standard attributes.
        * c-parser.c (c_parser_std_attribute): Take argument for_tm.  Use
        pedwarn for unknown standard attributes and return error_mark_node
        for them.

2019-11-18  Matthew Malcomson  <matthew.malcomson@arm.com>

        * c-parser.c (c_parser_parse_rtl_body): Always call
        run_rtl_passes, even if startwith pass is not provided.

2019-11-15  Joseph Myers  <joseph@codesourcery.com>

        * c-parser.c (c_parser_std_attribute_specifier): Diagnose
        duplicate standard attributes.

2019-11-15  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.c (std_attribute_table): Add maybe_unused.

2019-11-15  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.c (std_attribute_table): Add fallthrough.
        * c-parser.c (c_parser_declaration_or_fndef): Diagnose fallthrough
        attribute at top level.

2019-11-15  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.c (std_attribute_table): New.
        (c_init_decl_processing): Register attributes from
        std_attribute_table.
        * c-parser.c (c_parser_attribute_arguments): Add arguments
        require_string and allow_empty_args.  All callers changed.
        (c_parser_std_attribute): Set require_string argument for
        "deprecated" attribute.

2019-11-14  Joseph Myers  <joseph@codesourcery.com>

        * c-parser.c (c_parser_postfix_expression)
        (c_parser_check_literal_zero): Handle CPP_UTF8CHAR.
        * gimple-parser.c (c_parser_gimple_postfix_expression): Likewise.

2019-11-14  Richard Sandiford  <richard.sandiford@arm.com>

        * c-typeck.c (build_conditional_expr): Use truth_type_for instead
        of build_same_sized_truth_vector_type.
        (build_vec_cmp): Likewise.

2019-11-14  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_context_selector): Don't require score
        argument to fit into shwi, just to be INTEGER_CST.  Diagnose
        negative score.

        * c-parser.c (c_parser_omp_context_selector): Rename
        CTX_PROPERTY_IDLIST to CTX_PROPERTY_NAME_LIST, add CTX_PROPERTY_ID.
        Use CTX_PROPERTY_ID for atomic_default_mem_order, only allow a single
        identifier in that.  For CTX_PROPERTY_NAME_LIST, allow identifiers
        and string literals.

2019-11-14  Joseph Myers  <joseph@codesourcery.com>

        * c-tree.h (enum c_typespec_kind): Add ctsk_tagref_attrs and
        ctsk_tagfirstref_attrs.
        (struct c_declspecs): Update description of attrs.  Add
        postfix_attrs and non_std_attrs_seen_p.  Increase size of
        typespec_kind bit-field.
        (c_warn_unused_attributes): New declaration.
        (parser_xref_tag): Update prototype.
        * c-decl.c (c_warn_unused_attributes): New function.
        (shadow_tag_warned): Handle ctsk_tagfirstref_attrs and
        ctsk_tagref_attrs.  Handle attribute declarations.
        (check_compound_literal_type): Handle ctsk_tagfirstref_attrs.
        (grokdeclarator): Handle standard attributes.
        (parser_xref_tag): Add arguments have_std_attrs and attrs.  Apply
        attributes to incomplete type reference.
        (xref_tag): Update call to parser_xref_tag.
        (declspecs_add_addrspace, declspecs_add_type)
        (declspecs_add_scspec, declspecs_add_attrs): Set
        non_std_attrs_seen_p.
        (finish_declspecs): Apply postfix standard attributes to type.
        * c-parser.c (c_token_starts_declspecs)
        (c_token_starts_declaration, c_parser_next_token_starts_declspecs)
        (c_parser_next_tokens_start_declaration): Update comments.
        (c_parser_consume_token, c_parser_consume_pragma): Handle moving
        parser->tokens[2] to parser->tokens[1].
        (c_parser_nth_token_starts_std_attributes)
        (c_parser_std_attribute_specifier_sequence): New functions.
        (c_parser_declaration_or_fndef): Add arguments have_attrs and
        attrs.  All callers changed.  Handle standard attributes.
        (c_parser_parms_declarator, c_parser_parms_list_declarator)
        (c_parser_parameter_declaration): Add argument have_gnu_attrs.
        All callers changed.
        (c_parser_declspecs): Add arguments start_std_attr_ok and
        end_std_attr_ok.  All callers changed.  Handle standard
        attributes.
        (c_parser_enum_specifier, c_parser_struct_or_union_specifier)
        (c_parser_direct_declarator, c_parser_direct_declarator_inner)
        (c_parser_compound_statement_nostart, c_parser_all_labels)
        (c_parser_label, c_parser_statement, c_parser_for_statement):
        Handle standard attributes.
        * c-parser.h (c_parser_declspecs): Update prototype.
        * gimple-parser.c (c_parser_gimple_declaration): Update call to
        c_parser_declspecs.

2019-11-12  Martin Liska  <mliska@suse.cz>

        * gimple-parser.c: Do not include params.h.

2019-11-12  Martin Liska  <mliska@suse.cz>

        * gimple-parser.c (c_parser_parse_gimple_body): Replace old parameter syntax
        with the new one, include opts.h if needed.  Use SET_OPTION_IF_UNSET
        macro.

2019-11-12  Maciej W. Rozycki  <macro@codesourcery.com>
            Frederik Harwath  <frederik@codesourcery.com>

        gcc/c/
        * c-parser.c (OACC_SERIAL_CLAUSE_MASK): New macro.
        (c_parser_oacc_kernels_parallel): Rename function to...
        (c_parser_oacc_compute): ... this.  Handle PRAGMA_OACC_SERIAL.
        (c_parser_omp_construct): Update accordingly.


2019-11-11  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_translation_unit): Diagnose declare target
        without corresponding end declare target.

2019-11-08  Richard Sandiford  <richard.sandiford@arm.com>

        * c-convert.c (convert): Only handle vector conversions if one of
        the types satisfies gnu_vector_type_p or if -flax-vector-conversions
        allows it.
        * c-typeck.c (build_array_ref): Only allow vector indexing if the
        vectors satisfy gnu_vector_type_p.
        (build_unary_op): Only allow unary operators to be applied to
        vectors if they satisfy gnu_vector_type_p.
        (digest_init): Only allow by-element initialization of vectors
        if they satisfy gnu_vector_type_p.
        (really_start_incremental_init): Likewise.
        (push_init_level): Likewise.
        (pop_init_level): Likewise.
        (process_init_element): Likewise.
        (build_binary_op): Only allow binary operators to be applied to
        vectors if they satisfy gnu_vector_type_p.

2019-11-08  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.c (grokparms): Convert () in a function definition to
        (void) for C2x.
        (store_parm_decls_oldstyle): Pedwarn for C2x.
        (store_parm_decls): Update comment about () not generating a
        prototype.

2019-11-07  Joseph Myers  <joseph@codesourcery.com>

        * c-parser.c (c_parser_attribute_arguments): New function.
        Factored out of c_parser_gnu_attribute.
        (c_parser_gnu_attribute): Use c_parser_attribute_arguments.
        (c_parser_balanced_token_sequence, c_parser_std_attribute)
        (c_parser_std_attribute_specifier): New functions.
        (c_parser_transaction_attributes): Use
        c_parser_std_attribute_specifier.

2019-11-07  Joseph Myers  <joseph@codesourcery.com>

        * c-parser.c (c_parser): Remove lex_untranslated_string.  Add
        lex_joined_string and translate_strings_p.
        (c_lex_one_token): Pass 0 or C_LEX_STRING_NO_JOIN to
        c_lex_with_flags.
        (c_parser_string_literal): New function.
        (c_parser_static_assert_declaration_no_semi): Use
        c_parser_string_literal.  Do not set lex_untranslated_string.
        (c_parser_asm_string_literal): Use c_parser_string_literal.
        (c_parser_simple_asm_expr): Do not set lex_untranslated_string.
        (c_parser_gnu_attributes): Set and restore translate_strings_p
        instead of lex_untranslated_string.
        (c_parser_asm_statement): Do not set lex_untranslated_string.
        (c_parser_asm_operands): Likewise.
        (c_parser_has_attribute_expression): Set and restore
        translate_strings_p instead of lex_untranslated_string.
        (c_parser_postfix_expression): Use c_parser_string_literal.
        (pragma_lex): Likewise.
        (c_parser_pragma_pch_preprocess): Set lex_joined_string.
        (c_parse_file): Set translate_strings_p.
        * gimple-parser.c (c_parser_gimple_postfix_expression)
        (c_parser_gimple_or_rtl_pass_list): Use c_parser_string_literal.
        * c-parser.c (c_parser_string_literal): Declare function.

2019-11-02  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_finish_omp_declare_variant): Use
        omp_get_context_selector instead of c_omp_get_context_selector.

2019-10-29  Richard Sandiford  <richard.sandiford@arm.com>

        * c-tree.h (c_simulate_enum_decl): Declare.
        * c-decl.c (c_simulate_enum_decl): New function.
        * c-objc-common.h (LANG_HOOKS_SIMULATE_ENUM_DECL): Define to the above.

2019-10-29  Richard Sandiford  <richard.sandiford@arm.com>

        * c-tree.h (c_simulate_builtin_function_decl): Declare.
        * c-decl.c (c_simulate_builtin_function_decl): New function.
        * c-objc-common.h (LANG_HOOKS_SIMULATE_BUILTIN_FUNCTION_DECL): Define
        to the above.

2019-10-28  Martin Sebor  <msebor@redhat.com>

        PR c/66970
        * c-decl.c (names_builtin_p): Define a new function.

2019-10-28  Richard Biener  <rguenther@suse.de>

        PR c/92249
        * gimple-parser.c (c_parser_parse_gimple_body): Make
        current_bb the entry block initially to easier recover
        from errors.
        (c_parser_gimple_compound_statement): Adjust.

2019-10-24  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_finish_omp_declare_variant): Use
        omp_context_selector_matches instead of
        c_omp_context_selector_matches.
        * c-decl.c (c_decl_attributes): Add "omp declare target block"
        attribute in between declare target and end declare target
        pragmas.

2019-10-15  Joseph Myers  <joseph@codesourcery.com>

        * c-parser.c (c_parser_attribute_any_word): Rename to
        c_parser_gnu_attribute_any_word.  All callers changed.
        (c_parser_attribute): Rename to c_parser_gnu_attribute.  All
        callers changed.
        (c_parser_attributes): Rename to c_parser_gnu_attributes.  All
        callers changed.
        (c_parser_declaration_or_fndef, c_parser_declspecs)
        (c_parser_enum_specifier, c_parser_struct_or_union_specifier)
        (c_parser_struct_declaration, c_parser_declarator)
        (c_parser_gnu_attribute, c_parser_compound_statement)
        (c_parser_label, c_parser_statement, c_parser_objc_method_decl)
        (c_parser_transaction_attributes): Add "gnu-" prefix to names of
        attribute-related syntax productions.

2019-10-14  Richard Sandiford  <richard.sandiford@arm.com>

        * c-objc-common.c (useful_aka_type_p): Replace with...
        (get_aka_type): ...this new function.  Given the original type,
        decide which aka type to print (if any).  Only look through typedefs
        if user_facing_original_type_p.
        (print_type): Update accordingly.

2019-10-14  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_all_clauses): Change bool NESTED_P argument
        into int NESTED, if it is 2, diagnose missing commas in between
        clauses.
        (c_parser_omp_context_selector): Pass 2 as last argument to
        c_parser_omp_all_clauses.

2019-10-12  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_context_selector): Improve error recovery.
        For simd properties, put them directly into TREE_VALUE.
        (c_finish_omp_declare_variant): Call c_omp_mark_declare_variant.
        If c_omp_context_selector_matches is 0, don't add attribute, otherwise
        add "omp declare variant base" attribute rather than
        "omp declare variant".

2019-10-11  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.c (declspecs_add_type): Use pedwarn_c11 for DFP types.

2019-10-10  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_all_clauses): Add NESTED_P argument, if
        true, terminate processing on closing paren and don't skip to end of
        pragma line.
        (c_parser_omp_declare_simd): Handle also declare variant.
        (omp_construct_selectors, omp_device_selectors,
        omp_implementation_selectors, omp_user_selectors): New variables.
        (c_parser_omp_context_selector,
        c_parser_omp_context_selector_specification,
        c_finish_omp_declare_variant): New functions.
        (c_finish_omp_declare_simd): Handle both declare simd and
        declare variant.
        (c_parser_omp_declare): Handle declare variant.

2019-10-02  Joseph Myers  <joseph@codesourcery.com>

        * c-parser.c (c_parser_asm_statement): Handle CPP_SCOPE like two
        CPP_COLON tokens.

2019-10-01  Richard Sandiford  <richard.sandiford@arm.com>

        * c-objc-common.c (useful_aka_type_p): New function.
        (print_type): Use it to decide whether an aka type is worth printing.

2019-09-27  Jakub Jelinek  <jakub@redhat.com>

        PR c++/88203
        * c-parser.c (c_parser_predefined_identifier): New function.
        (c_parser_postfix_expression): Use it.
        (c_parser_omp_variable_list): Parse predefined identifiers.
        * c-typeck.c (c_finish_omp_clauses): Allow predefined variables
        in shared and firstprivate clauses, even when they are predetermined
        shared.

2019-09-27  Richard Sandiford  <richard.sandiford@arm.com>

        * c-typeck.c (build_function_call_vec): Take the original function
        decl as an optional final parameter.  Pass all built-in calls to
        check_builtin_function_arguments.

2019-09-20  Eric Botcazou  <ebotcazou@adacore.com>

        PR c/91815
        * c-decl.c (pushdecl): In C detect duplicate declarations across scopes
        of identifiers in the external scope only for variables and functions.

2019-09-04  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR c/78736
        * c-typeck.c (convert_for_assignment): Handle Wenum-conversion.

2019-08-23  Iain Sandoe  <iain@sandoe.co.uk>

        PR pch/61250
        * c-parser.c (c_parse_file): Call c_common_no_more_pch ()
        after determining that the first token is not
        PRAGMA_GCC_PCH_PREPROCESS.

2019-08-22  Eric Botcazou  <ebotcazou@adacore.com>

        * c-parser.c (c_parser_declaration_or_fndef): Set DECL_ARGUMENTS of a
        FUNCTION_DECL to the right value in the presence of nested declarators.

2019-08-13  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/91421
        * c-decl.c (merge_decls): Use copy_decl_built_in_function.

2019-08-13  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/91421
        * c-decl.c (header_for_builtin_fn): Take a FUNCTION_DECL instead
        of a built_in_function.
        (diagnose_mismatched_decls, implicitly_declare): Update accordingly.

2019-08-10  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_name): Parse device_type.
        (c_parser_omp_clause_device_type): New function.
        (c_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
        (OMP_DECLARE_TARGET_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
        (c_parser_omp_declare_target): Handle device_type clauses.  Remove
        diagnostics for declare target with clauses nested in clause-less
        declare target declaration-definition-seq.
        * c-typeck.c (c_finish_omp_clauses): Handle OMP_CLAUSE_DEVICE_TYPE.

2019-08-09  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (check_no_duplicate_clause): Simplify using
        omp_find_clause.
        (c_parser_omp_clause_if): Fix up printing of target {enter,exit} data
        directive name modifiers.
        (c_parser_omp_clause_proc_bind): Check for duplicate proc_bind clause.

        PR c/91401
        * c-parser.c (c_parser_omp_clause_dist_schedule): Fix up typos in the
        check_no_duplicate_clause call.  Comment it out, instead emit a
        warning for duplicate dist_schedule clauses.

2019-08-08  Richard Sandiford  <richard.sandiford@arm.com>

        * c-decl.c (finish_enum): Clear C_TYPE_BEING_DEFINED.

2019-08-08  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (c_finish_omp_clauses): For C_ORT_OMP
        OMP_CLAUSE_USE_DEVICE_* clauses use oacc_reduction_head bitmap
        instead of generic_head to track duplicates.

2019-08-07  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_name): Parse use_device_addr clause.
        (c_parser_omp_clause_use_device_addr): New function.
        (c_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR.
        (OMP_TARGET_DATA_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR.
        (c_parser_omp_target_data): Handle PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR
        like PRAGMA_OMP_CLAUSE_USE_DEVICE_PTR, adjust diagnostics about no
        map or use_device_* clauses.
        * c-typeck.c (c_finish_omp_clauses): For OMP_CLAUSE_USE_DEVICE_PTR
        in OpenMP, require pointer type rather than pointer or array type.
        Handle OMP_CLAUSE_USE_DEVICE_ADDR.

2019-07-31  Jakub Jelinek  <jakub@redhat.com>

        PR c/91192
        * c-parser.c (c_parser_sizeof_expression): Call set_c_expr_source_range
        even if finish is UNKNOWN_LOCATION, just use start as finish in that
        case.

2019-07-25  Martin Liska  <mliska@suse.cz>
            Dominik Infuhr  <dominik.infuehr@theobroma-systems.com>

        PR c++/23383
        * c-decl.c (merge_decls): Merge OPERATOR_DELETE flag.

2019-07-25  Martin Liska  <mliska@suse.cz>

        * c-decl.c (merge_decls): Use new macros
        (e.g. DECL_SET_LAMBDA_FUNCTION and DECL_LAMBDA_FUNCTION_P).

2019-07-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83518
        * gimple-parser.c (c_parser_parse_gimple_body): When we have
        a CFG also rebuild cgraph edges.

2019-07-20  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_name): Handle bind clause.
        (c_parser_omp_clause_bind): New function.
        (c_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_BIND.
        (OMP_LOOP_CLAUSE_MASK): Define.
        (c_parser_omp_loop): New function.
        (c_parser_omp_parallel, c_parser_omp_teams): Handle parsing of
        loop combined with parallel or teams.
        (c_parser_omp_construct): Handle PRAGMA_OMP_LOOP.
        * c-typeck.c (c_finish_omp_clauses): Handle OMP_CLAUSE_BIND.

2019-07-18  Richard Sandiford  <richard.sandiford@arm.com>

        PR c/53633
        * c-decl.c (finish_function): Check targetm.warn_func_return
        before issuing a -Wreturn-type warning.

2019-07-12  Alexandre Oliva  <oliva@adacore.com>

        * gimple-parser.c (c_parser_gimple_try_stmt): New.
        (c_parser_compound_statement): Call it.

2019-07-12  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_name): Handle order clause.
        (c_parser_omp_clause_order): New function.
        (c_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_ORDER.
        (OMP_SIMD_CLAUSE_MASK, OMP_FOR_CLAUSE_MASK): Add
        PRAGMA_OMP_CLAUSE_ORDER.
        * c-typeck.c (c_finish_omp_clauses): Handle OMP_CLAUSE_ORDER.

2019-07-10  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_postfix_expression): Support
        _Literal (int *) &x for address literals.

2019-07-09  Martin Sebor  <msebor@redhat.com>

        PR c++/61339
        * c-decl.c (xref_tag): Change class-key of PODs to struct and others
        to class.
        (field_decl_cmp): Same.
        * c-parser.c (c_parser_struct_or_union_specifier): Same.
        * c-tree.h: Same.
        * gimple-parser.c (c_parser_gimple_compound_statement): Same.

2019-07-09  Martin Sebor  <msebor@redhat.com>

        PR c++/61339
        * c-decl.c: Change class-key from class to struct and vice versa
        to match convention and avoid -Wclass-is-pod and -Wstruct-no-pod.
        * gimple-parser.c: Same.

2019-07-01  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_postfix_expression): Handle
        _Literal (char *) &"foo" for address literals pointing to
        STRING_CSTs.

2019-06-25  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * c-parser.c (c_parse_init): Create keyword for "__intN__" type.
        * c-decl.c (declspecs_add_type): Don't pedwarn about "__intN" ISO
        C incompatibility if alternate "__intN__" form is used.

2019-06-24  Martin Sebor  <msebor@redhat.com>

        * c-typeck.c (build_binary_op): Hyphenate floating-point.

2019-06-10  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_pragma): Reject PRAGMA_OMP_SCAN.
        (c_parser_omp_clause_reduction): Don't sorry_at on inscan reductions.
        (c_parser_omp_scan_loop_body): New function.
        (c_parser_omp_for_loop): Call c_parser_omp_scan_loop_body if there are
        inscan reduction clauses.
        * c-typeck.c (c_finish_omp_clauses): Reject mixing inscan with
        non-inscan reductions on the same construct, or inscan reductions with
        ordered or schedule clauses, or inscan array reductions.

2019-06-05  Martin Sebor  <msebor@redhat.com>

        PR c/90737
        * c-typeck.c (c_finish_return): Only consider functions returning
        pointers as candidates for -Wreturn-local-addr.

2019-06-05  Martin Sebor  <msebor@redhat.com>

        * c-decl.c (start_decl): Adjust quoting and hyphenation
        in diagnostics.
        (finish_decl): Same.
        (finish_enum): Same.
        (start_function): Same.
        (declspecs_add_type): Same.
        * c-parser.c (warn_for_abs): Same.
        * c-typeck.c (build_binary_op): Same.

2019-05-17  Thomas Schwinge  <thomas@codesourcery.com>

        PR c/89433
        * c-parser.c (c_finish_oacc_routine): Rework checking if already
        marked with an OpenACC 'routine' directive.

        PR c/89433
        * c-parser.c (c_parser_oacc_routine): Normalize order of clauses.
        (c_finish_oacc_routine): Call oacc_verify_routine_clauses.

        PR c/89433
        * c-parser.c (c_finish_oacc_routine): Refer to OpenACC 'routine'
        clauses from "omp declare target" attribute.

2019-05-16  Martin Sebor  <msebor@redhat.com>

        * c-decl.c (start_decl): Quote keywords, operators, and
        types in diagnostics.
        (finish_decl): Same.
        * c-parser.c (c_parser_asm_statement): Same.
        (c_parser_conditional_expression): Same.
        (c_parser_transaction_cancel): Same.
        * c-typeck.c (c_common_type): Same.
        (build_conditional_expr): Same.
        (digest_init): Same.
        (process_init_element): Same.
        (build_binary_op): Same.

2019-05-17  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_statement): Handle __VEC_PERM.
        (c_parser_gimple_unary_expression): Likewise.
        (c_parser_gimple_parentized_ternary_expression): New function.

2019-05-16  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_statement): Handle __BIT_INSERT.
        (c_parser_gimple_unary_expression): Likewise.

2019-05-15  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_postfix_expression): Handle
        __BIT_FIELD_REF.

2019-05-14  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_statement): Remove
        questionable auto-promotion to VIEW_CONVERT_EXPR.
        (c_parser_gimple_typespec): Split out from __MEM parsing.
        (c_parser_gimple_postfix_expression): Handle __VIEW_CONVERT.
        * tree-pretty-print.c (dump_generic_node): Dump VIEW_CONVERT_EXPR
        as __VIEW_CONVERT with -gimple.

2019-05-09  Martin Liska  <mliska@suse.cz>

        * gimple-parser.c (c_parser_gimple_statement): Support __MIN and
        __MAX.
        (c_parser_gimple_unary_expression): Parse also binary expression
        __MIN and __MAX.
        (c_parser_gimple_parentized_binary_expression): New function.

2019-05-09  Martin Liska  <mliska@suse.cz>

        * gimple-parser.c (struct gimple_parser): Add probability.
        for gimple_parser_edge.
        (gimple_parser::push_edge): Add new argument probability.
        (c_parser_gimple_parse_bb_spec): Parse also probability
        if present.
        (c_parser_parse_gimple_body): Set edge probability.
        (c_parser_gimple_compound_statement): Consume token
        before calling c_parser_gimple_goto_stmt.
        Parse BB counts.
        (c_parser_gimple_statement): Pass new argument.
        (c_parser_gimple_goto_stmt): Likewise.
        (c_parser_gimple_if_stmt): Likewise.
        (c_parser_gimple_or_rtl_pass_list): Parse hot_bb_threshold.
        * c-parser.c (c_parser_declaration_or_fndef): Pass
        hot_bb_threshold argument.
        * c-tree.h (struct c_declspecs): Add hot_bb_threshold
        field.
        (c_parser_gimple_parse_bb_spec_edge_probability): New.

2019-04-26  Jakub Jelinek  <jakub@redhat.com>

        PR debug/90197
        * c-tree.h (c_finish_loop): Add 2 further location_t arguments.
        * c-parser.c (c_parser_while_statement): Adjust c_finish_loop caller.
        (c_parser_do_statement): Likewise.
        (c_parser_for_statement): Likewise.  Formatting fixes.
        * c-typeck.c (c_finish_loop): Add COND_LOCUS and INCR_LOCUS arguments,
        emit DEBUG_BEGIN_STMTs if needed.

2019-04-19  Jakub Jelinek  <jakub@redhat.com>

        PR c/89888
        * c-typeck.c (struct c_switch): Remove outside_range_p member.
        (c_start_case): Don't clear it.
        (do_case): Adjust c_add_case_label caller.
        (c_finish_case): Adjust c_do_switch_warnings caller.

        PR c++/90108
        * c-decl.c (merge_decls): If remove is main variant and
        DECL_ORIGINAL_TYPE is some other type, remove a DECL_ORIGINAL_TYPE
        variant that has newdecl as TYPE_NAME if any.

2019-04-12  Jakub Jelinek  <jakub@redhat.com>

        PR c/89933
        * c-decl.c (merge_decls): When newdecl's type is its main variant,
        don't try to remove it from the variant list, but instead assert
        it has no variants.

2019-04-01  Richard Biener  <rguenther@suse.de>

        PR c/71598
        * c-tree.h (c_get_alias_set): Declare.
        * c-objc-common.h (LANG_HOOKS_GET_ALIAS_SET): Use c_get_alias_set.
        * c-objc-common.c (c_get_alias_set): Treat enumeral types
        as the underlying integer type.

2019-03-19  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/89688
        * c-decl.c (finish_decl): Call braced_lists_to_string for more
        kinds of initializers.

2019-03-19  Jakub Jelinek  <jakub@redhat.com>

        PR c/89734
        * c-decl.c (grokdeclarator): Call c_build_qualified_type on function
        return type even if quals_used is 0.  Formatting fixes.

2019-03-14  Richard Biener  <rguenther@suse.de>

        * c-tree.h (enum c_declspec_il): New.
        (struct c_declspecs): Merge gimple_p and rtl_p into declspec_il
        enum bitfield.
        * c-parser.c (c_parser_declaration_or_fndef): Adjust accordingly.
        Pass start pass and declspec_il to c_parser_parse_gimple_body.
        (c_parser_declspecs): Adjust.
        * gimple-parser.c: Include cfg.h, cfghooks.h, cfganal.h, tree-cfg.h,
        gimple-iterator.h, cfgloop.h, tree-phinodes.h, tree-into-ssa.h
        and bitmap.h.
        (struct gimple_parser): New.
        (gimple_parser::push_edge): New method.
        (c_parser_gimple_parse_bb_spec): New helper.
        (c_parser_parse_gimple_body): Get start pass and IL specification.
        Initialize SSA and CFG.
        (c_parser_gimple_compound_statement): Handle CFG and SSA build.
        Build a gimple_parser parsing state and pass it along.
        (c_parser_gimple_statement): Change intermittend __PHI internal
        function argument for the edge.
        (c_parser_gimple_or_rtl_pass_list): Handle ssa, cfg flags.
        (c_parser_gimple_goto_stmt): Record edges to build.
        (c_parser_gimple_if_stmt): Likewise.
        * gimple-parser.h (c_parser_parse_gimple_body): Adjust.
        (c_parser_gimple_or_rtl_pass_list): Likewise.

2019-03-11  Martin Liska  <mliska@suse.cz>

        * c-decl.c (check_for_loop_decls): Wrap an option name
        in a string format message and fix GNU coding style.
        * c-parser.c (c_parser_declspecs): Likewise.

2019-03-08  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/89550
        * c-decl.c (finish_function): Only set TREE_NO_WARNING if warning_at
        returned true.
        (c_write_global_declarations_1): Only set TREE_NO_WARNING if pedwarn
        or warning returned true.

2019-02-28  Jakub Jelinek  <jakub@redhat.com>

        PR c/89525
        * c-typeck.c (convert_arguments): Call inform_declaration only if
        the previous warning_at call returned true.

2019-02-22  Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.c (c_parser_oacc_shape_clause): Add loc formal
        parameter.  Adjust all users.
        (c_parser_oacc_simple_clause): Replace parser with loc formal
        parameter.  Adjust all users.

2019-02-19  Chung-Lin Tang  <cltang@codesourcery.com>

        PR c/87924
        * c-parser.c (c_parser_oacc_clause_wait): Add representation of wait
        clause without argument as 'wait (GOMP_ASYNC_NOVAL)', adjust comments.

2019-02-15  Jakub Jelinek  <jakub@redhat.com>

        PR c/89340
        * c-decl.c (start_function): Clear TREE_PUBLIC on nested functions
        before c_decl_attributes rather than after it.

2019-02-06  Jakub Jelinek  <jakub@redhat.com>

        PR c/89211
        * c-parser.c (c_parser_declaration_or_fndef): Don't update
        DECL_ARGUMENTS of d if it has been defined already.  Use a single if
        instead of 3 nested ifs.

2019-02-06  Joseph Myers  <joseph@codesourcery.com>

        PR c/88584
        * c-decl.c (finish_decl): Do not complete array types for arrays
        with external linkage not at file scope.

2019-02-05  Richard Biener  <rguenther@suse.de>

        PR c/88606
        * c-decl.c (finish_struct): Reset TYPE_TRANSPARENT_AGGR on
        all type variants when not supported.

2019-01-30  Jakub Jelinek  <jakub@redhat.com>

        PR c/89061
        * c-tree.h (C_DECL_COMPOUND_LITERAL_P): Define.
        * c-decl.c (decl_jump_unsafe): Return false for
        C_DECL_COMPOUND_LITERAL_P decls.
        (build_compound_literal): Set C_DECL_COMPOUND_LITERAL_P.

2019-01-29  Jakub Jelinek  <jakub@redhat.com>

        PR c/89045
        * c-decl.c (build_compound_literal): Don't pushdecl if in parameter
        scope.

        PR c/86125
        * c-decl.c (last_fileptr_type): Remove.
        (last_structptr_types): New variable.
        (match_builtin_function_types): Compare TYPE_MAIN_VARIANT of
        {old,new}rettype instead of the types themselves.  Assert
        last_structptr_types array has the same number of elements
        as builtin_structptr_types array.  Use TYPE_MAIN_VARIANT for
        argument oldtype and newtype.  Instead of handling
        just fileptr_type_node specially, handle all builtin_structptr_types
        pointer nodes.  Formatting fix.

2019-01-24  Martin Sebor  <msebor@redhat.com>

        PR c/86125
        PR c/88886
        PR middle-end/86308
        * c-decl.c (match_builtin_function_types): Add arguments.
        (diagnose_mismatched_decls): Diagnose mismatched declarations
        of built-ins more strictly.

2019-01-24  Jakub Jelinek  <jakub@redhat.com>

        PR c++/88976
        * c-typeck.c (c_finish_omp_cancel): Diagnose more than one if
        on #pragma omp cancel with different modifiers.

2019-01-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR c/51628
        PR c/88664
        * c-typeck.c (convert_for_assignment): Upate the
        warn_for_address_or_pointer_of_packed_member call.

2019-01-16  Tom Honermann  <tom@honermann.net>
            Jason Merrill  <jason@redhat.com>

        * c-typeck.c (digest_init): Revised the error message produced for
        ill-formed cases of array initialization with a string literal.
        (error_init): Make variadic.

2019-01-12  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (convert_for_assignment): Fix a comment typo.

2019-01-07  Jakub Jelinek  <jakub@redhat.com>

        PR c/88701
        * c-decl.c (build_compound_literal): If not TREE_STATIC, only pushdecl
        if current_function_decl is non-NULL.

2019-01-07  Joseph Myers  <joseph@codesourcery.com>

        PR c/88720
        PR c/88726
        * c-decl.c (pop_scope): Use TREE_PUBLIC and b->nested to determine
        whether a function is nested, not DECL_EXTERNAL.  Diagnose inline
        functions declared but never defined only for external scope, not
        for other scopes.

2019-01-07  Jakub Jelinek  <jakub@redhat.com>

        PR c++/85052
        * c-parser.c (c_parser_postfix_expression): Parse
        __builtin_convertvector.

2019-01-01  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.

2018-12-20  H.J. Lu  <hongjiu.lu@intel.com>

        PR c/51628
        * c-typeck.c (convert_for_assignment): Call
        warn_for_address_or_pointer_of_packed_member.

2018-12-19  Segher Boessenkool  <segher@kernel.crashing.org>

        * c-parser.c (c_parser_asm_statement) <RID_CONST, RID_RESTRICT>: Give
        a more specific error message (instead of just falling through).

2018-12-19  Segher Boessenkool  <segher@kernel.crashing.org>

        * c-parser.c (c_parser_asm_statement): Keep track of the location each
        asm qualifier is first seen; use that to give nicer "duplicate asm
        qualifier" messages.  Delete 'quals" variable, instead pass the
        "is_volatile_ flag to build_asm_stmt directly.
        * c-tree.h (build_asm_stmt): Make the first arg bool instead of tree.
        * c-typeck.c (build_asm_stmt): Ditto; adjust.

2018-12-19  Segher Boessenkool  <segher@kernel.crashing.org>

        * c-parser.c (c_parser_asm_statement): Rewrite the loop to work without
        "done" boolean variable.

2018-12-19  David Malcolm  <dmalcolm@redhat.com>

        PR c++/87504
        * c-typeck.c (class maybe_range_label_for_tree_type_mismatch):
        Move from here to gcc-rich-location.h and gcc-rich-location.c.
        (build_binary_op): Use struct op_location_t and
        class binary_op_rich_location.

2018-12-11  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/88426
        * c-convert.c (convert): Call c_fully_fold before calling
        ubsan_instrument_float_cast.

2018-12-08  Segher Boessenkool  <segher@kernel.crashing.org>

        * c-parser (c_parser_asm_statement) [RID_INLINE]: Delete stray line
        setting "quals".

2018-12-06  Segher Boessenkool  <segher@kernel.crashing.org>

        * c-parser.c (c_parser_asm_statement): Detect the inline keyword
        after asm.  Pass a flag for it to build_asm_expr.
        * c-tree.h (build_asm_expr): Update declaration.
        * c-typeck.c (build_asm_stmt): Add is_inline parameter.  Use it to
        set ASM_INLINE_P.

2018-12-06  Segher Boessenkool  <segher@kernel.crashing.org>

        PR inline-asm/55681
        * c-parser.c (c_parser_asm_statement): Update grammar.  Allow any
        combination of volatile and goto, in any order, without repetitions.

2018-12-04  James Norris  <jnorris@codesourcery.com>
            Cesar Philippidis  <cesar@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>

        * c-parser.c (c_parser_oacc_wait_list): Remove dead diagnostic
        code.

2018-11-30  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_postfix_expression): Parse
        _Literal (type) { ... } as empty aggregate or vector constructor.

2018-11-29  Martin Sebor  <msebor@redhat.com>

        PR c/88091
        * c-typeck.c (convert_argument): Add a parameter.  Adjust indentation.
        (convert_arguments): Add comments.  Pass additional argument to
        the function above.

2018-11-29  Martin Sebor  <msebor@redhat.com>

        PR c/88172
        PR testsuite/88208
        * c-decl.c (declspec_add_alignas): Adjust call to check_user_alignment.

2018-11-23  Martin Sebor  <msebor@redhat.com>

        PR testsuite/88098
        * c-typeck.c (convert_arguments): Call builtin_decl_explicit instead.
        (maybe_warn_builtin_no_proto_arg): Handle short enum to int promotion.

2018-11-20  Martin Sebor  <msebor@redhat.com>

        * c-parser.c (c_parser_has_attribute_expression): New function.
        (c_parser_attribute): New function.
        (c_parser_attributes): Move code into c_parser_attribute.
        (c_parser_unary_expression): Handle RID_HAS_ATTRIBUTE_EXPRESSION.

2018-11-15  Martin Sebor  <msebor@redhat.com>

        PR c/83656
        * c-decl.c (header_for_builtin_fn): Declare.
        (diagnose_mismatched_decls): Diagnose declarations of built-in
        functions without a prototype.
        * c-typeck.c (maybe_warn_builtin_no_proto_arg): New function.
        (convert_argument): Same.
        (convert_arguments): Factor code out into convert_argument.
        Detect mismatches between built-in formal arguments in calls
        to built-in without prototype.
        (build_conditional_expr): Same.
        (type_or_builtin_type): New function.
        (convert_for_assignment): Add argument.  Conditionally issue
        warnings instead of errors for mismatches.

2018-11-13  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.c: Replace "source_location" with "location_t".
        * c-tree.h: Likewise.
        * c-typeck.c: Likewise.
        * gimple-parser.c: Likewise.

2018-11-09  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_final): Use
        c_parser_expr_no_commas, convert_lvalue_to_rvalue,
        c_objc_common_truthvalue_conversion, c_fully_fold and parentheses
        parsing instead of c_parser_paren_condition.
        (c_parser_omp_clause_if): Use c_parser_expr_no_commas,
        convert_lvalue_to_rvalue, c_objc_common_truthvalue_conversion and
        c_fully_fold instead of c_parser_condition.
        (c_parser_omp_clause_num_threads, c_parser_omp_clause_num_tasks,
        c_parser_omp_clause_grainsize, c_parser_omp_clause_priority,
        c_parser_omp_clause_hint, c_parser_omp_clause_num_teams,
        c_parser_omp_clause_thread_limit, c_parser_omp_clause_linear): Use
        c_parser_expr_no_commas instead of c_parser_expression.

        * c-parser.c (c_parser_omp_clause_reduction): Call sorry_at on
        reduction clause with inscan modifier.

        * c-parser.c (c_parser_omp_requires): Call sorry_at on requires
        clauses other than atomic_default_mem_order.

2018-11-08  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c: Include memmode.h.
        (c_parser_omp_depobj, c_parser_omp_requires): New functions.
        (c_parser_pragma): Handle PRAGMA_OMP_DEPOBJ and PRAGMA_OMP_REQUIRES.
        (c_parser_omp_clause_name): Handle nontemporal, in_reduction and
        task_reduction clauses.
        (c_parser_omp_variable_list): Handle OMP_CLAUSE_{IN,TASK}_REDUCTION.
        For OMP_CLAUSE_DEPEND, parse clause operands as either an array
        section, or lvalue assignment expression.
        (c_parser_omp_clause_if): Handle cancel and simd modifiers.
        (c_parser_omp_clause_lastprivate): Parse optional
        conditional: modifier.
        (c_parser_omp_clause_hint): Require constant integer expression rather
        than just integer expression.
        (c_parser_omp_clause_defaultmap): Parse new kinds of defaultmap
        clause.
        (c_parser_omp_clause_reduction): Add IS_OMP and KIND arguments.
        Parse reduction modifiers.  Pass KIND to c_parser_omp_variable_list.
        (c_parser_omp_clause_nontemporal, c_parser_omp_iterators): New
        functions.
        (c_parser_omp_clause_depend): Parse iterator modifier and handle
        iterators.  Parse mutexinoutset and depobj kinds.
        (c_parser_oacc_all_clauses): Adjust c_parser_omp_clause_reduction
        callers.
        (c_parser_omp_all_clauses): Likewise.  Handle
        PRAGMA_OMP_CLAUSE_NONTEMPORAL and
        PRAGMA_OMP_CLAUSE_{IN,TASK}_REDUCTION.
        (c_parser_omp_atomic): Parse hint and memory order clauses.  Handle
        default memory order from requires directive if any.  Adjust
        c_finish_omp_atomic caller.
        (c_parser_omp_critical): Allow comma in between (name) and hint clause.
        (c_parser_omp_flush): Parse flush with memory-order-clause.
        (c_parser_omp_for_loop): Allow NE_EXPR even in
        OpenMP loops, adjust c_finish_omp_for caller.
        (OMP_SIMD_CLAUSE_MASK): Add if and nontemporal clauses.
        (c_parser_omp_master): Add p_name, mask and cclauses arguments.
        Allow to be called while parsing combined parallel master.
        Parse combined master taskloop{, simd}.
        (c_parser_omp_parallel): Parse combined
        parallel master{, taskloop{, simd}} constructs.
        (OMP_TASK_CLAUSE_MASK): Add in_reduction clause.
        (OMP_TASKGROUP_CLAUSE_MASK): Define.
        (c_parser_omp_taskgroup): Add LOC argument.  Parse taskgroup clauses.
        (OMP_TASKWAIT_CLAUSE_MASK): Define.
        (c_parser_omp_taskwait): Handle taskwait with depend clauses.
        (c_parser_omp_teams): Force a BIND_EXPR with BLOCK
        around teams body.  Use SET_EXPR_LOCATION.
        (c_parser_omp_target_data): Allow target data
        with only use_device_ptr clauses.
        (c_parser_omp_target): Use SET_EXPR_LOCATION.  Set
        OMP_REQUIRES_TARGET_USED bit in omp_requires_mask.
        (c_parser_omp_requires): New function.
        (c_finish_taskloop_clauses): New function.
        (OMP_TASKLOOP_CLAUSE_MASK): Add reduction and in_reduction clauses.
        (c_parser_omp_taskloop): Use c_finish_taskloop_clauses.  Add forward
        declaration.  Disallow in_reduction clause when combined with parallel
        master.
        (c_parser_omp_construct): Adjust c_parser_omp_master and
        c_parser_omp_taskgroup callers.
        * c-typeck.c (c_finish_omp_cancel): Diagnose if clause with modifier
        other than cancel.
        (handle_omp_array_sections_1): Handle OMP_CLAUSE_{IN,TASK}_REDUCTION
        like OMP_CLAUSE_REDUCTION.
        (handle_omp_array_sections): Likewise.  Call save_expr on array
        reductions before calling build_index_type.  Handle depend clauses
        with iterators.
        (struct c_find_omp_var_s): New type.
        (c_find_omp_var_r, c_omp_finish_iterators): New functions.
        (c_finish_omp_clauses): Don't diagnose nonmonotonic clause
        with static, runtime or auto schedule kinds.  Call save_expr for whole
        array reduction sizes.  Diagnose reductions with zero sized elements
        or variable length structures.  Diagnose nogroup clause used with
        reduction clause(s).  Handle depend clause with
        OMP_CLAUSE_DEPEND_DEPOBJ.  Diagnose bit-fields.  Require
        omp_depend_t type for OMP_CLAUSE_DEPEND_DEPOBJ kinds and
        some different type for other kinds.  Use build_unary_op with
        ADDR_EXPR and build_indirect_ref instead of c_mark_addressable.
        Handle depend clauses with iterators.  Remove no longer needed special
        case that predetermined const qualified vars may be specified in
        firstprivate clause.  Complain if const qualified vars are mentioned
        in data-sharing clauses other than firstprivate or shared.  Use
        error_at with OMP_CLAUSE_LOCATION (c) as first argument instead of
        error.  Formatting fix.  Handle OMP_CLAUSE_NONTEMPORAL and
        OMP_CLAUSE_{IN,TASK}_REDUCTION.  Allow any lvalue as
        OMP_CLAUSE_DEPEND operand (besides array section), adjust diagnostics.

2018-10-29  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.c (implicit_decl_warning): Update "is there a suggestion"
        logic for change to name_hint::operator bool.
        (undeclared_variable): Likewise.
        * c-parser.c (c_parser_declaration_or_fndef): Likewise.
        (c_parser_parameter_declaration): Likewise.

2018-10-17  Joseph Myers  <joseph@codesourcery.com>

        * c-errors.c (pedwarn_c11): New function.
        * c-parser.c (disable_extension_diagnostics): Save
        warn_c11_c2x_compat and set it to 0.
        (restore_extension_diagnostics): Restore warn_c11_c2x_compat.
        (c_parser_static_assert_declaration_no_semi): Handle
        _Static_assert without string constant.
        * c-tree.h (pedwarn_c11): New prototype.

2018-10-17  David Malcolm  <dmalcolm@redhat.com>

        * Make-lang.in (selftest-c): New.
        (C_SELFTEST_FLAGS, C_SELFTEST_DEPS, s-selftest-c, selftest-c-gdb)
        (selftest-gdb, selftest-c-valgrind, selftest-valgrind): Move here
        from gcc/Makefile.in.

2018-10-02  Richard Biener  <rguenther@suse.de>

        * c-decl.c (warn_if_shadowing): Do not test DECL_FROM_INLINE.

2018-09-26  Joseph Myers  <joseph@codesourcery.com>

        PR c/87390
        * c-typeck.c (build_binary_op): Use excess precision for
        comparisons of integers and floating-point for C11 and later.

2018-09-26  Martin Jambor  <mjambor@suse.cz>

        PR c/87347
        * c-parser.c (warn_for_abs): Bail out if TYPE_ARG_TYPES is NULL.  Fix
        comment.

2018-09-17  David Malcolm  <dmalcolm@redhat.com>

        * c-objc-common.c (range_label_for_type_mismatch::get_text):
        Update for new param.
        * c-typeck.c (maybe_range_label_for_tree_type_mismatch::get_text):
        Likewise.

2018-09-17  Martin Jambor  <mjambor@suse.cz>

        PR c/63886
        * c-parser.c: (warn_for_abs): New function.
        (c_parser_postfix_expression_after_primary): Call it.

2018-09-13  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-typeck.c (digest_init): Shorten overlength strings.

2018-09-06  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-decl.c (finish_decl): Call complete_flexible_array_elts.

2018-09-02  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-decl.c (finish_decl): Call braced_list_to_string here ...
        * c-parser.c (c_parser_declaration_or_fndef): ... instead of here.

2018-08-30  Alexander Monakov  <amonakov@ispras.ru>

        * gimple-parser.c (c_parser_gimple_binary_expression): Accept infix
        "__MULT_HIGHPART" for MULT_HIGHPART_EXPR.

2018-08-27  David Malcolm  <dmalcolm@redhat.com>

        PR 87091
        * c-decl.c (implicitly_declare): Update call to
        maybe_add_include_fixit to suggest overriding the location, as it
        is for a note.
        * c-objc-common.c (c_tree_printer): Update for conversion of
        show_caret_p to a tri-state.

2018-08-27  Martin Liska  <mliska@suse.cz>

        * c-decl.c (locate_old_decl): Use new function
        fndecl_built_in_p and remove check for FUNCTION_DECL if
        possible.
        (diagnose_mismatched_decls): Likewise.
        (merge_decls): Likewise.
        (warn_if_shadowing): Likewise.
        (pushdecl): Likewise.
        (implicitly_declare): Likewise.
        * c-parser.c (c_parser_postfix_expression_after_primary): Likewise.
        * c-tree.h (C_DECL_ISNT_PROTOTYPE): Likewise.
        * c-typeck.c (build_function_call_vec): Likewise.
        (convert_arguments): Likewise.

2018-08-20  David Malcolm  <dmalcolm@redhat.com>

        PR other/84889
        * c-decl.c (pushtag): Add auto_diagnostic_group instance.
        (diagnose_mismatched_decls): Likewise, in various places.
        (warn_if_shadowing): Likewise.
        (implicit_decl_warning): Likewise.
        (implicitly_declare): Likewise.
        (undeclared_variable): Likewise.
        (declare_label): Likewise.
        (grokdeclarator): Likewise.
        (start_function): Likewise.
        * c-parser.c (c_parser_declaration_or_fndef): Likewise.
        (c_parser_parameter_declaration): Likewise.
        (c_parser_binary_expression): Likewise.
        * c-typeck.c (c_expr_sizeof_expr): Likewise.
        (parser_build_binary_op): Likewise.
        (build_unary_op): Likewise.
        (error_init): Likewise.
        (pedwarn_init): Likewise.
        (warning_init): Likewise.
        (convert_for_assignment): Likewise.

2018-08-15  David Malcolm  <dmalcolm@redhat.com>

        * c-objc-common.c: Include "gcc-rich-location.h".
        (c_tree_printer): Move implemenation of '%T' to...
        (print_type): ...this new function.
        (range_label_for_type_mismatch::get_text): New function.
        * c-typeck.c (convert_for_assignment): Add type labels to the rhs
        range for the various ic_argpass cases.
        (class maybe_range_label_for_tree_type_mismatch): New class.
        (build_binary_op): Use it when calling binary_op_error.

2018-08-15  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * c-decl.c (start_decl): Do not warn if variables is named as main
        and is a local variable.

2018-08-15  Iain Sandoe  <iain@sandoe.co.uk>

        PR c/19315
        * c-decl.c (finish_decl): Don't add the 'extern' storage class to
        objects of unknown size.

2018-08-13  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/71625
        * c-parser.c (c_parser_declaration_or_fndef): Call
        braced_list_to_string.

2018-08-03  Bogdan Harjoc  <harjoc@gmail.com>

        PR c/86690
        * c-typeck.c (lookup_field): Do not use TYPE_LANG_SPECIFIC after
        errors.

2018-08-01  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/86650
        * c-objc-common.c (c_tree_printer): Move usage of EXPR_LOCATION (t)
        and TREE_BLOCK (t) from within percent_K_format to this callsite.

2018-08-01  Jakub Jelinek  <jakub@redhat.com>

        PR c/85704
        * c-typeck.c (init_field_decl_cmp): New function.
        (output_pending_init_elements): Use it for field comparisons
        instead of pure bit_position comparisons.

2018-07-12  Jakub Jelinek  <jakub@redhat.com>

        * c-decl.c (c_decl_attributes): Don't diagnose vars without mappable
        type here, instead add "omp declare target implicit" attribute.
        (finish_decl): Diagnose vars without mappable type here.

2018-06-20  Chung-Lin Tang  <cltang@codesourcery.com>
            Thomas Schwinge  <thomas@codesourcery.com>
            Cesar Philippidis  <cesar@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_name): Add support for finalize
        and if_present. Make present_or_{copy,copyin,copyout,create} aliases
        to their non-present_or_* counterparts. Make 'self' an alias to
        PRAGMA_OACC_CLAUSE_HOST.
        (c_parser_oacc_data_clause): Update GOMP mappings for
        PRAGMA_OACC_CLAUSE_{COPY,COPYIN,COPYOUT,CREATE,DELETE}. Remove
        PRAGMA_OACC_CLAUSE_{SELF,PRESENT_OR_*}.
        (c_parser_oacc_all_clauses): Handle finalize and if_present clauses.
        Remove support for present_or_* clauses.
        (OACC_KERNELS_CLAUSE_MASK): Remove PRESENT_OR_* clauses.
        (OACC_PARALLEL_CLAUSE_MASK): Likewise.
        (OACC_DECLARE_CLAUSE_MASK): Likewise.
        (OACC_DATA_CLAUSE_MASK): Likewise.
        (OACC_ENTER_DATA_CLAUSE_MASK): Remove PRESENT_OR_* clauses.
        (OACC_EXIT_DATA_CLAUSE_MASK): Add FINALIZE clause.
        (OACC_UPDATE_CLAUSE_MASK): Remove SELF, add IF_PRESENT.
        (c_parser_oacc_declare): Remove PRESENT_OR_* clauses.
        * c-typeck.c (c_finish_omp_clauses): Handle IF_PRESENT and FINALIZE.

2018-06-16  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * c-typeck.c (build_unary_op): Handle ABSU_EXPR;
        * gimple-parser.c (c_parser_gimple_statement): Likewise.
        (c_parser_gimple_unary_expression): Likewise.

2018-06-15  Jakub Jelinek  <jakub@redhat.com>

        PR c/86093
        * c-typeck.c (pointer_diff): Cast both pointers to unqualified types
        before doing POINTER_DIFF_EXPR.

2018-06-07  Marek Polacek  <polacek@redhat.com>

        PR c/85318
        * c-decl.c (check_for_loop_decls): Add -Wc90-c99-compat warning about
        for loop initial declarations.

2018-05-30  David Pagan  <dave.pagan@oracle.com>

        PR c/55976
        * c-decl.c (grokdeclarator): Update check for return type warnings.
        (start_function): Likewise.
        (finish_function): Likewise.
        * c-typeck.c (c_finish_return): Update check for return type warnings.
        Pass OPT_Wreturn_type to pedwarn when appropriate.

2018-05-18  Richard Sandiford  <richard.sandiford@linaro.org>

        * gimple-parser.c (c_parser_gimple_postfix_expression): Remove
        __FMA_EXPR handlng.

2018-05-17  Richard Sandiford  <richard.sandiford@linaro.org>

        * gimple-parser.c: Include internal-fn.h.
        (c_parser_gimple_statement): Treat a leading CPP_DOT as a call.
        (c_parser_gimple_call_internal): New function.
        (c_parser_gimple_postfix_expression): Use it to handle CPP_DOT.
        Fix typos in comment.

2018-05-10  Jakub Jelinek  <jakub@redhat.com>

        PR c++/85662
        * c-fold.c (c_fully_fold_internal): Use fold_offsetof rather than
        fold_offsetof_1, pass TREE_TYPE (expr) as TYPE to it and drop the
        fold_convert_loc.
        * c-typeck.c (build_unary_op): Use fold_offsetof rather than
        fold_offsetof_1, pass argtype as TYPE to it and drop the
        fold_convert_loc.

2018-05-02  David Pagan  <dave.pagan@oracle.com>

        PR c/30552
        * c-decl.c (old_style_parameter_scope): New function.
        * c-parser.c (c_parser_postfix_expression): Check for statement
        expressions in old-style function parameter list declarations.
        * c-parser.h (old_style_parameter_scope): New extern declaration.

2018-04-25  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/84307
        * c-decl.c (build_compound_literal): Call pushdecl (decl) even when
        it is not TREE_STATIC.
        * c-typeck.c (c_mark_addressable) <case COMPOUND_LITERAL_EXPR>: Mark
        not just the COMPOUND_LITERAL_EXPR node itself addressable, but also
        its COMPOUND_LITERAL_EXPR_DECL.

2018-03-21  Joseph Myers  <joseph@codesourcery.com>

        * c-parser.c (c_parser_postfix_expression): For __builtin_tgmath
        where all functions return the same _FloatN or _FloatNx type,
        treat integer types as _Float64 instead of double.

2018-03-21  Jakub Jelinek  <jakub@redhat.com>

        PR c/84999
        * c-typeck.c (build_binary_op): If c_common_type_for_size fails when
        building vector comparison, diagnose it and return error_mark_node.

2018-03-15  Jakub Jelinek  <jakub@redhat.com>

        PR c/84853
        * c-typeck.c (build_binary_op) <case RSHIFT_EXPR, case LSHIFT_EXPR>:
        If code1 is INTEGER_TYPE, only allow code0 VECTOR_TYPE if it has
        INTEGER_TYPE element type.

2018-03-13  David Pagan  <dave.pagan@oracle.com>

        PR c/46921
        * c-typeck.c (output_init_element): Ensure field initializer
        expression is always evaluated if there are side effects.

2018-03-06  Jakub Jelinek  <jakub@redhat.com>

        PR c/84721
        * c-parser.c (add_debug_begin_stmt): Don't add DEBUG_BEGIN_STMT if
        !building_stmt_list_p ().

2018-02-13  Richard Sandiford  <richard.sandiford@linaro.org>

        PR c/84305
        * c-decl.c (grokdeclarator): Create an anonymous TYPE_DECL
        in PARM and TYPENAME contexts too, but attach it to a BIND_EXPR
        and include the BIND_EXPR in the list of things that need to be
        pre-evaluated.

2018-02-09  Nathan Sidwell  <nathan@acm.org>

        PR c/84293
        * c-typeck.c (build_indirect_ref, build_c_cast): Pass expr location
        to strict_aliasing_warning.

2018-02-02  Paolo Carlini  <paolo.carlini@oracle.com>

        * c-typeck.c (really_start_incremental_init, push_init_level,
        set_nonincremental_init, output_init_element, process_init_element):
        Use DECL_UNNAMED_BIT_FIELD.

2018-01-31  Marek Polacek  <polacek@redhat.com>

        PR c/81779
        * c-parser.c (c_parser_compound_statement_nostart): Call
        expansion_point_location_if_in_system_header.

2018-01-17  David Malcolm  <dmalcolm@redhat.com>

        PR c++/83814
        * c-fold.c (fold_for_warn): Move from c-common.c, reducing to just
        the C part.

2018-01-13  Jakub Jelinek  <jakub@redhat.com>

        PR c/83801
        * c-tree.h (decl_constant_value_1): Add a bool argument.
        * c-typeck.c (decl_constant_value_1): Add IN_INIT argument, allow
        returning a CONSTRUCTOR if it is true.  Use error_operand_p.
        (decl_constant_value): Adjust caller.
        * c-fold.c (c_fully_fold_internal): If in_init, pass true to
        decl_constant_value_1 as IN_INIT.  Otherwise, punt if
        decl_constant_value returns initializer that has BLKmode or
        array type.
        (c_fully_fold_internal) <case COMPONENT_REF>: Fold if !lval.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * c-typeck.c (comptypes_internal, build_binary_op): Handle polynomial
        TYPE_VECTOR_SUBPARTS.

2018-01-03  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.

2018-01-01  Jakub Jelinek  <jakub@redhat.com>

        PR c/83595
        * c-parser.c (c_parser_braced_init, c_parser_initelt,
        c_parser_conditional_expression, c_parser_cast_expression,
        c_parser_sizeof_expression, c_parser_alignof_expression,
        c_parser_postfix_expression, c_parser_omp_declare_reduction,
        c_parser_transaction_expression): Use set_error () method instead
        of setting value member to error_mark_node.

2017-12-28  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * c-decl.c (header_for_builtin_fn): Add integer rounding _Float<N>
        and _Float<N>X built-in functions.

2017-12-22  Jakub Jelinek  <jakub@redhat.com>

        PR debug/83550
        * c-decl.c (finish_struct): Set DECL_SOURCE_LOCATION on
        TYPE_STUB_DECL and call rest_of_type_compilation before processing
        incomplete vars rather than after it.

        PR debug/83547
        * c-typeck.c (c_finish_stmt_expr): Ignore !TREE_SIDE_EFFECTS as
        indicator of ({ }), instead skip all trailing DEBUG_BEGIN_STMTs first,
        and consider empty ones if there are no other stmts.  For
        -Wunused-value walk all statements before the one only followed by
        DEBUG_BEGIN_STMTs.

2017-12-22  Mike Stump  <mikestump@comcast.net>
            Eric Botcazou  <ebotcazou@adacore.com>

        * c-parser.c (c_parser_while_statement): Add unroll parameter and
        build ANNOTATE_EXPR if present.  Add 3rd operand to ANNOTATE_EXPR.
        (c_parser_do_statement): Likewise.
        (c_parser_for_statement): Likewise.
        (c_parser_statement_after_labels): Adjust calls to above.
        (c_parse_pragma_ivdep): New static function.
        (c_parser_pragma_unroll): Likewise.
        (c_parser_pragma) <PRAGMA_IVDEP>: Add support for pragma Unroll.
        <PRAGMA_UNROLL>: New case.

2017-12-19  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (comptypes_internal, function_types_compatible_p,
        perform_integral_promotions, digest_init): Replace Yoda conditions
        with typical order conditions.
        * c-decl.c (check_bitfield_type_and_width): Likewise.

2017-12-14  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-typeck.c (c_safe_arg_type_equiv_p,
        c_safe_function_type_cast_p): New function.
        (build_c_cast): Implement -Wcast-function-type.

2017-12-14  Richard Biener  <rguenther@suse.de>

        PR c/83415
        * c-fold.c (c_fully_fold_internal): Treat VIEW_CONVERT_EXPR
        like REALPART_EXPR for the behavior of whether its operand
        is an lvalue.

2017-12-12  Marek Polacek  <polacek@redhat.com>

        PR c/82679
        * c-decl.c (grokdeclarator): Check declspecs insted of atomicp.

2017-12-12  Alexandre Oliva  <aoliva@redhat.com>

        * c-objc-common.h (LANG_HOOKS_EMITS_BEGIN_STMT): Redefine as true.
        * c-parser.c (add_debug_begin_stmt): New.
        (c_parser_declaration_or_fndef): Call it.
        (c_parser_compound_statement_nostart): Likewise.
        (c_parser_statement_after_labels): Likewise.
        * c-typeck (c_finish_stmt_expr): Skip begin stmts markers.

2017-12-07  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.c (build_compound_literal): Add parameter alignas_align
        and set alignment of decl if nonzero.
        * c-parser.c (c_keyword_starts_typename): Allow RID_ALIGNAS.
        (c_parser_declspecs): Allow RID_ALIGNAS to follow a type, like a
        qualifier.
        (c_parser_struct_declaration): Update syntax comment.
        (c_parser_type_name): Add alignas_ok argument and pass it to
        c_parser_declspecs.
        (c_parser_cast_expression): Pass true to c_parser_type_name and
        give error if a cast used an _Alignas specifier.
        (c_parser_sizeof_expression): Pass true to c_parser_type_name and
        give error if sizeof (type-name) used an _Alignas specifier.
        (c_parser_alignof_expression): Pass true to c_parser_type_name and
        give error if _Alignof (type-name) used an _Alignas specifier.
        (c_parser_postfix_expression_after_paren_type): Check specified
        alignment for a compound literal and pass it to
        build_compound_literal.
        * c-parser.h (c_parser_type_name): Update prototype.
        * c-tree.h (build_compound_literal): Update prototype.

2017-12-07  Martin Sebor  <msebor@redhat.com>

        PR c/81544
        * c-decl.c (c_decl_attributes): Look up existing declaration and
        pass it to decl_attributes.

2017-12-06  David Malcolm  <dmalcolm@redhat.com>

        PR c/83236
        * c-decl.c (lookup_name_fuzzy): Don't suggest names that are
        reserved for use by the implementation.

2017-12-06  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.c: Include "c-family/c-spellcheck.h".

2017-12-05  Martin Liska  <mliska@suse.cz>
            Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (pointer_diff): Add new argument and instrument
        pointer subtraction.
        (build_binary_op): Similar for pointer comparison.

2017-12-01  Jakub Jelinek  <jakub@redhat.com>

        PR c/79153
        * c-parser.c: Include tree-iterator.h.
        (c_parser_switch_statement): Emit LABEL_EXPR for the break label
        into SWITCH_BODY instead of after it and set SWITCH_BREAK_LABEL_P
        on it.

        PR c/83222
        * c-tree.h (decl_constant_value_1): Declare.
        * c-typeck.c (decl_constant_value_1): New function.
        (decl_constant_value): Use it.
        * c-fold.c (c_fully_fold_internal): If in_init, use
        decl_constant_value_1 instead of decl_constant_value.

2017-11-30  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_postfix_expression): Use ; instead of ;;.

2017-11-28  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/81275
        * c-typeck.c (c_finish_case): Set SWITCH_ALL_CASES_P if
        c_switch_covers_all_cases_p returns true.

2017-11-28  Julia Koval  <julia.koval@intel.com>
            Sebastian Peryt  <sebastian.peryt@intel.com>

        * Make-lang.in (c/c-array-notation.o): Remove.
        * c-array-notation.c: Delete.
        * c-decl.c: Remove cilkplus condition.
        * c-parser.c (c_parser_cilk_simd, c_parser_cilk_for,
        c_parser_cilk_verify_simd, c_parser_array_notation,
        c_parser_cilk_clause_vectorlength, c_parser_cilk_grainsize,
        c_parser_cilk_simd_fn_vector_attrs,
        c_finish_cilk_simd_fn_tokens): Delete.
        (c_parser_declaration_or_fndef): Remove cilkplus condition.
        (c_parser_direct_declarator_inner): Ditto.
        (CILK_SIMD_FN_CLAUSE_MASK): Delete.
        (c_parser_attributes, c_parser_compound_statement,
        c_parser_statement_after_labels, c_parser_if_statement,
        c_parser_switch_statement, c_parser_while_statement,
        c_parser_do_statement, c_parser_for_statement,
        c_parser_unary_expression, c_parser_postfix_expression,
        c_parser_postfix_expression_after_primary,
        c_parser_pragma, c_parser_omp_clause_name, c_parser_omp_all_clauses,
        c_parser_omp_for_loop, c_finish_omp_declare_simd): Remove cilkplus
        support.
        * c-typeck.c (build_array_ref, build_function_call_vec,
        convert_arguments,
        lvalue_p, build_compound_expr, c_finish_return, c_finish_if_stmt,
        c_finish_loop, build_binary_op): Remove cilkplus support.

2017-11-28  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (c_start_case): Build SWITCH_EXPR using build2 instead
        of build3.

2017-11-14  Boris Kolpackov  <boris@codesynthesis.com>

        * Make-lang.in (c.install-plugin): Install backend import library.

2017-11-23  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_declare_simd): Reject declare simd in
        pragma_stmt context.

2017-11-23  Mike Stump  <mikestump@comcast.net>
            Eric Botcazou  <ebotcazou@adacore.com>

        * c-parser.c (c_parser_while_statement): Pass 3rd operand to
        ANNOTATE_EXPR.
        (c_parser_do_statement): Likewise.
        (c_parser_for_statement): Likewise.

2017-11-22  David Malcolm  <dmalcolm@redhat.com>

        PR c++/62170
        * c-objc-common.c (c_tree_printer): Convert penultimate param from
        bool to bool *.  Within '%T' handling, if showing an "aka", use
        "quoted" param to add appropriate quoting.

2017-11-22  Marek Polacek  <polacek@redhat.com>

        PR c++/60336
        PR middle-end/67239
        PR target/68355
        * c-decl.c (grokdeclarator): Set DECL_PADDING_P on unnamed bit-fields.

2017-11-21  David Malcolm  <dmalcolm@redhat.com>

        PR c/83056
        * c-decl.c (lookup_name_fuzzy): Don't suggest names that came from
        earlier failed lookups.

2017-11-21  Marc Glisse  <marc.glisse@inria.fr>

        * c-fold.c (c_fully_fold_internal): Handle POINTER_DIFF_EXPR.
        * c-typeck.c (pointer_diff): Use POINTER_DIFF_EXPR.

2017-11-20  David Malcolm  <dmalcolm@redhat.com>

        PR c/81404
        * c-decl.c: Include "c-family/known-headers.h".
        (get_c_name_hint): Rename to get_stdlib_header_for_name and move
        to known-headers.cc.
        (class suggest_missing_header): Move to known-header.h.
        (lookup_name_fuzzy): Call get_c_stdlib_header_for_name rather
        than get_c_name_hint.

2017-11-20  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.c (get_c_name_hint): New function.
        (class suggest_missing_header): New class.
        (lookup_name_fuzzy): Call get_c_name_hint and use it to
        suggest missing headers to the user.

2017-11-20  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.c: Define INCLUDE_UNIQUE_PTR before including system.h.
        Include "c-family/name-hint.h"
        (implicit_decl_warning): Convert "hint" from
        const char * to name_hint.  Pass location to
        lookup_name_fuzzy.  Suppress any deferred diagnostic if the
        warning was not printed.
        (undeclared_variable): Likewise for "guessed_id".
        (lookup_name_fuzzy): Convert return type from const char *
        to name_hint.  Add location_t param.
        * c-parser.c: Define INCLUDE_UNIQUE_PTR before including system.h.
        Include "c-family/name-hint.h"
        (c_parser_declaration_or_fndef): Convert "hint" from
        const char * to name_hint.  Pass location to lookup_name_fuzzy.
        (c_parser_parameter_declaration): Likewise.

2017-11-19  Jakub Jelinek  <jakub@redhat.com>

        PR c/66618
        PR c/69960
        * c-parser.c (c_parser_omp_atomic): Pass true as LVAL to c_fully_fold
        where needed.
        * c-typeck.c (build_unary_op, build_modify_expr, build_asm_expr,
        handle_omp_array_sections): Likewise.
        (digest_init): Don't call decl_constant_value_for_optimization.
        * c-tree.h (decl_constant_value_for_optimization): Removed.
        * c-fold.c (c_fold_array_ref): New function.
        (c_fully_fold_internal): Add LVAL argument, propagate it through
        recursive calls.  For VAR_P call decl_constant_value and
        unshare if not LVAL and either optimizing or IN_INIT.  Remove
        decl_constant_value_for_optimization calls.  If IN_INIT and not LVAL,
        fold ARRAY_REF with STRING_CST and INTEGER_CST operands.
        (c_fully_fold): Add LVAL argument, pass it through to
        c_fully_fold_internal.
        (decl_constant_value_for_optimization): Removed.

2017-11-15  Joseph Myers  <joseph@codesourcery.com>

        PR c/81156
        * c-parser.c (check_tgmath_function): New function.
        (enum tgmath_parm_kind): New enum.
        (c_parser_postfix_expression): Handle __builtin_tgmath.

2017-10-31  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.c (implicit_decl_warning): Update for renaming of
        pedwarn_at_rich_loc and warning_at_rich_loc.
        (implicitly_declare): Likewise for renaming of inform_at_rich_loc.
        (undeclared_variable): Likewise for renaming of error_at_rich_loc.
        * c-parser.c (c_parser_declaration_or_fndef): Likewise.
        (c_parser_struct_or_union_specifier): Likewise for renaming of
        pedwarn_at_rich_loc.
        (c_parser_parameter_declaration): Likewise for renaming of
        error_at_rich_loc.
        * c-typeck.c (build_component_ref): Likewise.
        (build_unary_op): Likewise for renaming of inform_at_rich_loc.
        (pop_init_level): Likewise for renaming of warning_at_rich_loc.
        (set_init_label): Likewise for renaming of error_at_rich_loc.

2017-10-30  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_statement): Parse conditional
        stmts.

2017-10-27  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * c-decl.c (header_for_builtin_fn): Add support for copysign, fma,
        fmax, fmin, and sqrt _Float<N> and _Float<N>X variants.

2017-10-25  David Malcolm  <dmalcolm@redhat.com>

        PR c/7356
        * c-parser.c (c_parser_declaration_or_fndef): Detect missing
        semicolons.

2017-10-25  Jakub Jelinek  <jakub@redhat.com>

        PR libstdc++/81706
        * c-decl.c (merge_decls): Copy "omp declare simd" attributes from
        newdecl to corresponding __builtin_ if any.

2017-10-24  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/82466
        * c-decl.c (diagnose_mismatched_decls): Use
        OPT_Wbuiltin_declaration_mismatch.

2017-10-12  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (c_parser_require): Add "type_is_unique" param and
        use it to guard calls to maybe_suggest_missing_token_insertion.
        (c_parser_parms_list_declarator): Override default value of new
        "type_is_unique" param to c_parser_require.
        (c_parser_asm_statement): Likewise.
        * c-parser.h (c_parser_require): Add "type_is_unique" param,
        defaulting to true.

2017-10-11  Nathan Sidwell  <nathan@acm.org>

        * c-decl.c (grokdeclarator): Check HAS_DECL_ASSEMBLER_NAME_P too.

2017-10-10  Richard Sandiford  <richard.sandiford@linaro.org>

        * c-parser.c (c_parser_cilk_clause_vectorlength): Use wi::to_wide when
        operating on trees as wide_ints.
        * c-typeck.c (build_c_cast, c_finish_omp_clauses): Likewise.
        (c_tree_equal): Likewise.

2017-10-04  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.c (push_parm_decl): Store c_parm's location into the
        PARAM_DECL.
        (build_c_parm): Add "loc" param and store it within the c_parm.
        * c-parser.c (struct c_parser): Add "last_token_location" field.
        (c_parser_consume_token): Store location of the token into the
        new field.
        (c_parser_declaration_or_fndef): Store params into DECL_ARGUMENTS
        when handling a FUNCTION_DECL, if it doesn't already have them.
        (c_parser_parameter_declaration): Generate a location for the
        parameter, and pass it to the call to build_c_parm.
        * c-tree.h (struct c_parm): Add field "loc".
        (build_c_parm): Add location_t param.
        * c-typeck.c (get_fndecl_argument_location): New function.
        (inform_for_arg): New function.
        (convert_for_assignment): Use inform_for_arg when dealing with
        ic_argpass.

2017-09-29  Jakub Jelinek  <jakub@redhat.com>

        * c-decl.c (grokfield): Use SET_DECL_C_BIT_FIELD here if
        width is non-NULL.
        (finish_struct): Test DECL_C_BIT_FIELD instead of DECL_INITIAL,
        don't SET_DECL_C_BIT_FIELD here.

        PR c/82340
        * c-decl.c (build_compound_literal): Use c_apply_type_quals_to_decl
        instead of trying to set just TREE_READONLY manually.

2017-09-16  Tom de Vries  <tom@codesourcery.com>

        PR c/81875
        * c-parser.c (c_parser_omp_for_loop): Fold only operands of cond, not
        cond itself.

2017-09-15  Joseph Myers  <joseph@codesourcery.com>

        PR c/82071
        * c-typeck.c (ep_convert_and_check): Just call convert_and_check
        for C11.
        (build_conditional_expr): For C11, generate result with excess
        precision when one argument is an integer and the other is of a
        type using excess precision.

2017-09-15  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-typeck.c (build_c_cast): Implement -Wcast-align=strict.

2017-09-13  Marek Polacek  <polacek@redhat.com>

        PR c/82167
        * c-typeck.c (c_expr_sizeof_expr): Use the type of expr.value rather
        than expr.original_type.

2017-09-12  Nathan Sidwell  <nathan@acm.org>

        * c-decl.c (field_decl_cmp, resort_data, resort_field_decl_cmp,
        resort_sorted_fields): Moved from c-family/c-common.c.
        * c-lang.h (struct sorted_fields_type): Moved from c-family/c-common.h.

2017-09-01  Joseph Myers  <joseph@codesourcery.com>

        PR c/82071
        * c-typeck.c (build_atomic_assign): Handle argument with excess
        precision.  Ensure any EXCESS_PRECISION_EXPR is present in
        argument passed to build_binary_op and convert_for_assignment but
        not for call to c_fully_fold.
        (build_modify_expr): Do not remove EXCESS_PRECISION_EXPR early.
        Ensure build_binary_op is called with argument with original
        semantic type.  Avoid calling c_fully_fold with an
        EXCESS_PRECISION_EXPR from build_binary_op.

2017-09-01  Jakub Jelinek  <jakub@redhat.com>

        PR c/81887
        * c-parser.c (c_parser_omp_ordered): Handle -fopenmp-simd.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * c-typeck.c (build_binary_op): Use SCALAR_TYPE_MODE.
        (c_common_type): Likewise.  Use as_a <scalar_mode> when setting
        m1 and m2 to the signed equivalent of a fixed-point
        SCALAR_TYPE_MODE.

2017-08-24  David Malcolm  <dmalcolm@redhat.com>

        * c-tree.h (c_expr::get_location) Use EXPR_HAS_LOCATION rather
        than CAN_HAVE_LOCATION_P when determining whether to use the
        location_t value within "value".

2017-08-21  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (c_parser_expr_list): Use c_expr::get_location ()
        rather than peeking the location of the first token.
        * c-tree.h (c_expr::get_location): New method.

2017-08-21  David Malcolm  <dmalcolm@redhat.com>

        * c-typeck.c (build_function_call_vec): Pass arg_loc to call
        to check_function_arguments.

2017-08-18  Marek Polacek  <polacek@redhat.com>

        * c-parser.c (c_parser_postfix_expression): Remove unused code.  Update
        commentary.

2017-08-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR c/53037
        * c-decl.c (merge_decls): Also merge DECL_WARN_IF_NOT_ALIGN.
        (check_bitfield_type_and_width): Don't allow bit-field with
        warn_if_not_aligned type.

2017-08-14  Martin Sebor  <msebor@redhat.com>

        PR c/81117
        * c-objc-common.c (c_objc_common_init): Handle 'G'.

2017-08-11  Marek Polacek  <polacek@redhat.com>

        PR c/81795
        * c-decl.c (pushtag): Only print inform if the warning was printed.
        (grokdeclarator): Likewise.

2017-08-10  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (c_parser_error): Rename to...
        (c_parser_error_richloc): ...this, making static, and adding
        "richloc" parameter, passing it to the c_parse_error call,
        rather than calling c_parser_set_source_position_from_token.
        (c_parser_error): Reintroduce, reimplementing in terms of the
        above, converting return type from void to bool.
        (class token_pair): New class.
        (struct matching_paren_traits): New struct.
        (matching_parens): New typedef.
        (struct matching_brace_traits): New struct.
        (matching_braces): New typedef.
        (get_matching_symbol): New function.
        (c_parser_require): Add param MATCHING_LOCATION, using it to
        highlight matching "opening" tokens for missing "closing" tokens.
        (c_parser_skip_until_found): Likewise.
        (c_parser_static_assert_declaration_no_semi): Convert explicit
        parsing of CPP_OPEN_PAREN and CPP_CLOSE_PAREN to use of
        class matching_parens, so that the pertinent open parenthesis is
        highlighted when there are problems locating the close
        parenthesis.
        (c_parser_struct_or_union_specifier): Likewise.
        (c_parser_typeof_specifier): Likewise.
        (c_parser_alignas_specifier): Likewise.
        (c_parser_simple_asm_expr): Likewise.
        (c_parser_braced_init): Likewise, for matching_braces.
        (c_parser_paren_condition): Likewise, for matching_parens.
        (c_parser_switch_statement): Likewise.
        (c_parser_for_statement): Likewise.
        (c_parser_asm_statement): Likewise.
        (c_parser_asm_operands): Likewise.
        (c_parser_cast_expression): Likewise.
        (c_parser_sizeof_expression): Likewise.
        (c_parser_alignof_expression): Likewise.
        (c_parser_generic_selection): Likewise.
        (c_parser_postfix_expression): Likewise for cases RID_VA_ARG,
        RID_OFFSETOF, RID_TYPES_COMPATIBLE_P, RID_AT_SELECTOR,
        RID_AT_PROTOCOL, RID_AT_ENCODE, reindenting as necessary.
        In case CPP_OPEN_PAREN, pass loc_open_paren to the
        c_parser_skip_until_found call.
        (c_parser_objc_class_definition): Use class matching_parens as
        above.
        (c_parser_objc_method_decl): Likewise.
        (c_parser_objc_try_catch_finally_statement): Likewise.
        (c_parser_objc_synchronized_statement): Likewise.
        (c_parser_objc_at_property_declaration): Likewise.
        (c_parser_oacc_wait_list): Likewise.
        (c_parser_omp_var_list_parens): Likewise.
        (c_parser_omp_clause_collapse): Likewise.
        (c_parser_omp_clause_default): Likewise.
        (c_parser_omp_clause_if): Likewise.
        (c_parser_omp_clause_num_threads): Likewise.
        (c_parser_omp_clause_num_tasks): Likewise.
        (c_parser_omp_clause_grainsize): Likewise.
        (c_parser_omp_clause_priority): Likewise.
        (c_parser_omp_clause_hint): Likewise.
        (c_parser_omp_clause_defaultmap): Likewise.
        (c_parser_oacc_single_int_clause): Likewise.
        (c_parser_omp_clause_ordered): Likewise.
        (c_parser_omp_clause_reduction): Likewise.
        (c_parser_omp_clause_schedule): Likewise.
        (c_parser_omp_clause_num_teams): Likewise.
        (c_parser_omp_clause_thread_limit): Likewise.
        (c_parser_omp_clause_aligned): Likewise.
        (c_parser_omp_clause_linear): Likewise.
        (c_parser_omp_clause_safelen): Likewise.
        (c_parser_omp_clause_simdlen): Likewise.
        (c_parser_omp_clause_depend): Likewise.
        (c_parser_omp_clause_map): Likewise.
        (c_parser_omp_clause_device): Likewise.
        (c_parser_omp_clause_dist_schedule): Likewise.
        (c_parser_omp_clause_proc_bind): Likewise.
        (c_parser_omp_clause_uniform): Likewise.
        (c_parser_omp_for_loop): Likewise.
        (c_parser_cilk_clause_vectorlength): Likewise.
        (c_parser_cilk_clause_linear): Likewise.
        (c_parser_transaction_expression): Likewise.
        * c-parser.h (c_parser_require): Add param matching_location with
        default UNKNOWN_LOCATION.
        (c_parser_error): Convert return type from void to bool.
        (c_parser_skip_until_found): Add param matching_location with
        default UNKNOWN_LOCATION.

2017-08-09  Marek Polacek  <polacek@redhat.com>

        * c-decl.c (build_enumerator): Use true/false instead of 1/0.
        * c-tree.h (build_external_ref): Update declaration.
        * c-typeck.c (build_array_ref): Use true/false instead of 1/0.
        (build_external_ref): Change the type of a parameter to bool.
        (parser_build_binary_op): Use true/false instead of 1/0.
        (pointer_diff): Likewise.
        (build_modify_expr): Likewise.
        (set_designator): Change the type of a parameter to bool.
        (set_init_index): Use true/false instead of 1/0.
        (set_init_label): Likewise.
        (output_init_element): Change the type of a parameter to bool.
        (output_pending_init_elements): Use true/false instead of 1/0.
        (process_init_element): Likewise.
        (build_binary_op): Change the type of a parameter to bool.

2017-08-09  Marek Polacek  <polacek@redhat.com>

        PR c/81233
        * c-typeck.c (pedwarn_init): Make the function take a variable list.
        Call emit_diagnostic_valist instead of pedwarn.
        (convert_for_assignment): Unroll the PEDWARN_FOR_ASSIGNMENT macro.
        Print the relevant types in diagnostics.

2017-08-09  Marek Polacek  <polacek@redhat.com>

        PR c/81417
        * c-array-notation.c (fix_builtin_array_notation_fn): Update calls to
        build_conditional_expr.
        * c-parser.c (c_parser_conditional_expression): Create locations for
        EXP1 and EXP2 from their source ranges.  Pass the locations down to
        build_conditional_expr.
        * c-tree.h (build_conditional_expr): Update declaration.
        * c-typeck.c (build_conditional_expr): Add location_t parameters.
        For -Wsign-compare, also print the types.

2017-08-08  Martin Liska  <mliska@suse.cz>

        * c-convert.c: Include header files.
        * c-typeck.c: Likewise.

2017-08-07  Martin Liska  <mliska@suse.cz>

        * c-parser.c (c_parser_attributes): Canonicalize name of an
        attribute.

2017-08-02  Marek Polacek  <polacek@redhat.com>

        PR c/81289
        * c-parser.c (c_parser_unary_expression): Use set_error.

        PR c/81448
        PR c/81306
        * c-warn.c (warn_for_multistatement_macros): Prevent bogus
        warnings.  Avoid walking MACRO_MAP_LOCATIONS.

2017-07-31  Jan Hubicka  <hubicka@ucw.cz>
            Martin Liska  <mliska@suse.cz>

        * c-typeck.c (c_finish_goto_label): Build gimple predict
        statement.

2017-07-31  Martin Liska  <mliska@suse.cz>

        PR sanitize/81530
        * c-convert.c (convert): Guard condition with flag_sanitize_p
        also with current_function_decl non-null equality.
        * c-decl.c (grokdeclarator): Likewise.
        * c-typeck.c (build_binary_op): Likewise.

2017-07-25  Marek Polacek  <polacek@redhat.com>

        * c-decl.c (grokfield): Remove local variable.

2017-07-25  Marek Polacek  <polacek@redhat.com>

        PR c/81364
        * c-parser.c (c_parser_else_body): Don't warn about multistatement
        macro expansion if the body is in { }.
        (c_parser_while_statement): Likewise.
        (c_parser_for_statement): Likewise.

2017-07-18  Nathan Sidwell  <nathan@acm.org>

        * c-parser.c (c_parser_array_notation): Use TYPE_{MIN,MAX}_VALUE.

2017-07-14  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.c (implicitly_declare): When suggesting a missing
        #include, provide a fix-it hint.

2017-07-06  David Malcolm  <dmalcolm@redhat.com>

        * c-lang.c (selftest::run_c_tests): Move body to c_family_tests,
        and call that instead.
        * c-tree.h (selftest::run_c_tests): New decl.

2017-06-26  Marek Polacek  <polacek@redhat.com>

        PR c/80116
        * c-parser.c (c_parser_if_body): Set the location of the
        body of the conditional after parsing all the labels.  Call
        warn_for_multistatement_macros.
        (c_parser_else_body): Likewise.
        (c_parser_switch_statement): Likewise.
        (c_parser_while_statement): Likewise.
        (c_parser_for_statement): Likewise.
        (c_parser_statement): Add a default argument.  Save the location
        after labels have been parsed.
        (c_parser_c99_block_statement): Likewise.

2017-06-19  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_postfix_expression): Handle
        negated _Literals to parse _Literal (int) -1.

2017-06-13  Martin Liska  <mliska@suse.cz>

        PR sanitize/78204
        * c-convert.c (convert): Use sanitize_flags_p.
        * c-decl.c (grokdeclarator): Likewise.
        * c-typeck.c (convert_for_assignment): Likewise.
        (c_finish_return): Likewise.
        (build_binary_op): Likewise.

2017-06-08  Jakub Jelinek  <jakub@redhat.com>

        PR c/81006
        * c-typeck.c (handle_omp_array_sections_1): Convert TYPE_MAX_VALUE
        to sizetype before size_binop.

2017-06-07  Jakub Jelinek  <jakub@redhat.com>

        * gimple-parser.c (c_parser_parse_gimple_body): Use TDI_gimple instead
        of TDI_generic.

2017-06-06  Marek Polacek  <polacek@redhat.com>

        PR c/79983
        * c-decl.c (start_struct): Use the location of TYPE_STUB_DECL of
        ref.
        (start_enum): Use the location of TYPE_STUB_DECL of enumtype.

2017-06-02  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-parser.c (c_parser_binary_expression): Implement the
        -Wsizeof_pointer_div warning.
        (c_parser_postfix_expression): Allow SIZEOF_EXPR as expr.original_code
        from a parenthesized expression.
        (c_parser_expr_list): Use c_last_sizeof_loc.
        * c-tree.h (c_last_sizeof_loc): New external.
        * c-typeck.c (c_last_sizeof_loc): New variable.
        (c_expr_sizeof_expr, c_expr_sizeof_type): Assign c_last_sizeof_loc.

2017-05-31  Mikhail Maltsev  <maltsevm@gmail.com>

        PR testsuite/80580
        * gimple-parser.c (c_parser_gimple_if_stmt): Check for empty labels.

2017-05-30  David Malcolm  <dmalcolm@redhat.com>

        * c-objc-common.c (c_tree_printer): Gain bool and const char **
        parameters.

2017-05-24  Martin Sebor  <msebor@redhat.com>

        PR c/80731
        * c-fold.c (c_fully_fold_internal): Adjust.
        * c-typeck.c (parser_build_unary_op): Adjust.

2017-05-23  Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.c (OACC_KERNELS_CLAUSE_MASK): Add
        "PRAGMA_OACC_CLAUSE_NUM_GANGS", "PRAGMA_OACC_CLAUSE_NUM_WORKERS",
        "VECTOR_LENGTH".

2017-05-23  Marek Polacek  <polacek@redhat.com>

        * c-parser.c (c_parser_compound_statement_nostart): Remove redundant
        quotes.

2017-05-22  Jakub Jelinek  <jakub@redhat.com>

        * c-fold.c (c_fully_fold_internal): Save the c_fully_fold_internal
        result for SAVE_EXPR operand and set SAVE_EXPR_FOLDED_P even if
        it returned invariant.  Call tree_invariant_p unconditionally
        afterwards to decide whether to return expr or op0.

2017-05-22  Nathan Sidwell  <nathan@acm.org>

        * c-decl.c (c_parse_final_cleanups): Drop TDI_tu handling.

2017-05-19  Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_default): Handle
        "OMP_CLAUSE_DEFAULT_PRESENT".

2017-05-18  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * config-lang.in (gtfiles): Add c-family/c-format.c.

2017-05-18  Nathan Sidwell  <nathan@acm.org>

        * c-decl.c (pushdecl_top_level): Delete unused function.

2017-05-18  Marek Polacek  <polacek@redhat.com>

        * c-decl.c (match_builtin_function_types): Use NULL_TREE instead of 0.
        (check_earlier_gotos): Likewise.
        (define_label): Likewise.
        (pending_xref_error): Likewise.
        (smallest_type_quals_location): Likewise.
        (grokdeclarator): Likewise.
        (grokparms): Likewise.
        (identifier_global_value): Likewise.
        * c-typeck.c (set_nonincremental_init_from_string): Likewise.
        (find_init_member): Likewise.

2017-05-18  Marek Polacek  <polacek@redhat.com>

        * c-decl.c (start_decl): Use false/true instead of 0/1.
        (grokdeclarator): Likewise.
        (finish_struct): Likewise.
        (start_function): Change the return type to bool.  Use false/true
        instead of 0/1.
        (declspecs_add_qual): Use UNKNOWN_LOCATION instead of 0.
        * c-tree.h (start_function): Update.
        * c-typeck.c (same_translation_unit_p): Change the return type to bool.
        (set_designator): Change the return type to bool.  Use false/true
        instead of 0/1.

2017-05-17  Marek Polacek  <polacek@redhat.com>

        * c-decl.c: Use NULL_TREE instead of 0 where appropriate.
        * c-typeck.c: Likewise.

2017-05-17  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/80659
        * c-decl.c (build_compound_literal): Set DECL_ARTIFICIAL and
        DECL_IGNORED_P even for non-static compound literals.

2017-05-17  Martin Liska  <mliska@suse.cz>

        * c-decl.c (c_parse_final_cleanups): Introduce dump_flags_t type and
        use it instead of int type.

2017-05-17  Marek Polacek  <polacek@redhat.com>

        * c-convert.c (convert): Replace c_save_expr with save_expr.  Don't
        call c_fully_fold.
        (convert) <case COMPLEX_TYPE>: Remove special handling of COMPLEX_TYPEs.
        * c-decl.c (grokdeclarator): Replace c_save_expr with save_expr.
        * c-fold.c (c_fully_fold_internal): Handle SAVE_EXPR.
        * c-parser.c (c_parser_declaration_or_fndef): Replace c_save_expr with
        save_expr.
        (c_parser_conditional_expression): Likewise.
        * c-tree.h (SAVE_EXPR_FOLDED_P): Define.
        * c-typeck.c (build_modify_expr): Replace c_save_expr with save_expr.
        (process_init_element): Likewise.
        (build_binary_op): Likewise.
        (handle_omp_array_sections_1): Likewise.

2017-05-12  Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_num_gangs)
        (c_parser_omp_clause_num_workers)
        (c_parser_omp_clause_vector_length): Merge functions into...
        (c_parser_oacc_single_int_clause): ... this new function.  Adjust
        all users.

2017-05-11  Nathan Sidwell  <nathan@acm.org>

        * gimple-parser.c: Don't #include tree-dump.h.

2017-05-11  Mikhail Maltsev  <maltsevm@gmail.com>

        PR testsuite/80580
        * gimple-parser.c (c_parser_parse_ssa_name): Validate SSA name base.

2017-05-11  Mikhail Maltsev  <maltsevm@gmail.com>

        PR testsuite/80580
        * gimple-parser.c (c_parser_gimple_postfix_expression): Handle
        incorrect __MEM syntax.

2017-05-11  Mikhail Maltsev  <maltsevm@gmail.com>

        PR testsuite/80580
        * gimple-parser.c (c_parser_gimple_unary_expression): Check argument
        type of unary '*'.

2017-05-09  Nathan Sidwell  <nathan@acm.org>

        * c-tree.h (pushdecl): Declare.

2017-05-05  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.c (warn_defaults_to): Replace report_diagnostic
        with diagnostic_report_diagnostic.
        * c-errors.c (pedwarn_c99): Likewise.
        (pedwarn_c90): Likewise.

2017-05-01  Xi Ruoyao  <ryxi@stu.xidian.edu.cn>

        PR c++/80038
        * c-gimplify.c (c_gimplify_expr): Remove calls to
        cilk_gimplifY_call_params_in_spawned_fn.

2017-04-25  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (c_parser_struct_or_union_specifier): Add fix-it
        hint for removing extra semicolon.

2017-04-21  Jakub Jelinek  <jakub@redhat.com>

        PR c/80468
        * c-decl.c (finish_declspecs) <case cts_int_n>: If int_n_idx is not
        enabled, set specs->type to integer_type_node.

2017-04-03  Jonathan Wakely  <jwakely@redhat.com>

        * c-array-notation.c: Fix typo in comment.

2017-03-29  Marek Polacek  <polacek@redhat.com>

        PR c/79730
        * c-decl.c (finish_decl): Check VAR_P.

2017-03-27  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/80162
        * c-tree.h (c_mark_addressable): Add array_ref_p argument.
        * c-typeck.c (c_mark_addressable): Likewise.  Look through
        VIEW_CONVERT_EXPR unless array_ref_p and VCE is from VECTOR_TYPE
        to ARRAY_TYPE.
        (build_array_ref): Pass true as array_ref_p to c_mark_addressable.

2017-03-23  Marek Polacek  <polacek@redhat.com>

        * c-tree.h: Remove a C_RID_YYCODE reference.

2017-03-21  Jakub Jelinek  <jakub@redhat.com>

        PR c/80097
        * c-typeck.c (build_binary_op): Add EXCESS_PRECISION_EXPR only around
        optional COMPOUND_EXPR with ubsan instrumentation.

2017-03-17  Marek Polacek  <polacek@redhat.com>

        * c-parser.c: Add C11 references.

2017-03-15  Marek Polacek  <polacek@redhat.com>

        * c-parser.c (c_parser_enum_specifier): Remove redundant line.

2017-03-11  Marek Polacek  <polacek@redhat.com>

        * c-decl.c (implicit_decl_warning): Add a comment.  Fix formatting.

2017-03-10  David Malcolm  <dmalcolm@redhat.com>

        PR translation/79848
        * c-decl.c (declspecs_add_type): Simplify uses of "%<%s%>" to
        "%qs".
        * c-parser.c (c_parser_oacc_shape_clause): Likewise.

2017-03-09  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/79757
        * c-parser.c (c_parser_declaration_or_fndef): Don't sanitize old-style
        parameter declarations with initializers.

2017-03-09  Jakub Jelinek  <jakub@redhat.com>

        PR c/79969
        * c-decl.c (start_enum): Adjust DECL_SOURCE_LOCATION of
        TYPE_STUB_DECL.

2017-03-07  Jakub Jelinek  <jakub@redhat.com>

        PR c/79834
        * c-parser.c (c_parser_pragma): Use error_at instead of c_parser_error
        for "may only be used in compound statements" diagnostics, change it
        such that the same translatable string is used for all pragmas.  For
        PRAGMA_OACC_WAIT use "acc wait" rather than "acc enter data" in the
        diagnostics.
        (c_parser_omp_cancellation_point, c_parser_omp_target_update,
        c_parser_omp_target_enter_data, c_parser_omp_target_exit_data): Change
        "may only be used in compound statements" diagnostics, such that the
        same translatable string is used for all pragmas.

2017-03-04  Marek Polacek  <polacek@redhat.com>

        PR c/79847
        * c-decl.c (implicit_decl_warning): Add missing space.

2017-03-03  Marek Polacek  <polacek@redhat.com>

        PR c/79758
        * c-decl.c (store_parm_decls_oldstyle): Check if the element of
        current_function_prototype_arg_types is error_mark_node.  Fix
        formatting.  Use TREE_VALUE instead of TREE_TYPE.

2017-03-03  Jakub Jelinek  <jakub@redhat.com>

        PR c/79837
        * c-parser.c (c_parser_omp_clause_reduction): Don't mention
        %<min%> or %<max%> in the diagnostics, instead mention identifier.
        (c_parser_omp_declare_reduction): Don't mention %<min%> in the
        diagnostics.

        PR c/79836
        * c-parser.c (c_parser_generic_selection): Use %<_Generic%>
        instead of %<_Generic>.
        (c_parser_omp_ordered): Use %<depend%> instead of %<depend>.
        (c_parser_omp_target_exit_data): Use %<release%> instead of
        %<release>.

2017-02-28  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_asm_statement): Use cond ? G_("...") : G_("...")
        instead of just cond ? "..." : "...".
        (c_parser_oacc_enter_exit_data): Use %s and ternary operator only
        for "enter"/"exit" keyword.
        (c_finish_oacc_routine): Don't use %s to supply portions of the
        message.

2017-02-24  Jakub Jelinek  <jakub@redhat.com>

        PR c++/79588
        * c-parser.c (c_parser_postfix_expression_after_primary): Don't
        handle -Wrestrict here.
        * c-typeck.c (build_function_call_vec): Adjust
        check_function_arguments caller.

2017-02-23  Richard Biener  <rguenther@suse.de>

        PR c/79684
        * gimple-parser.c (c_parser_gimple_statement): Use set_error
        to initialize c_exprs to return.
        (c_parser_gimple_binary_expression): Likewise.
        (c_parser_gimple_unary_expression): Likewise.
        (c_parser_gimple_postfix_expression): Likewise.

2017-02-22  Marek Polacek  <polacek@redhat.com>

        PR c/79662
        * c-typeck.c (convert_arguments): Handle error_mark_node.

2017-02-19  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * gimple-parser.c (c_parser_gimple_postfix_expression): Check return
        value of c_parser_parse_ssa_name against error_mark_node and emit
        error if ssa name is anonymous and written as default definition.

2017-02-19  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * gimple-parser.c (c_parser_gimple_postfix_expression): Handle
        FMA_EXPR.

2017-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR c++/79512
        * c-parser.c (c_parser_omp_target): For -fopenmp-simd
        ignore #pragma omp target even when not followed by identifier.

2017-02-14  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * gimpler-parser.c (c_parser_gimple_statement): Handle ABS_EXPR.
        (c_parser_gimple_unary_expression): Likewise.

2017-02-13  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_oacc_declare): Add missing space in
        diagnostics.

2017-02-13  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR c/79478
        * gimple-parser.c (c_parser_gimple_postfix_expression): Call
        set_c_expr_source_range when parsing ssa-name.

2017-02-10  Prasad Ghangal  <prasad.ghangal@gmail.com>
            Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_binary_expression): Avoid
        building IL when arguments are error_mark_node.
        (c_parser_gimple_unary_expression): Likewise.
        (c_parser_gimple_if_stmt): Likewise.
        (c_parser_gimple_switch_stmt): Likewise.
        (c_parser_gimple_return_stmt): Likewise.
        (c_parser_parse_ssa_name): When name lookup fails do not build
        an SSA name.  Use undeclared rather than not declared in error
        reporting.

2017-02-09  Marek Polacek  <polacek@redhat.com>

        PR c/79428
        * c-parser.c (c_parser_omp_ordered): Call c_parser_skip_to_pragma_eol
        instead of c_parser_skip_until_found.

2017-02-09  Jakub Jelinek  <jakub@redhat.com>

        PR c/79431
        * c-parser.c (c_parser_omp_declare_target): Don't invoke
        symtab_node::get on automatic variables.

2016-02-09  Nathan Sidwell  <nathan@codesourcery.com>
            Chung-Lin Tang  <cltang@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_collapse): Disallow tile.
        (c_parser_oacc_clause_tile): Disallow collapse. Fix parsing and
        semantic checking.
        * c-parser.c (c_parser_omp_for_loop): Accept tiling constructs.

2017-02-07  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_expr_list): Simplify.
        (c_parser_gimple_postfix_expression_after_primary):
        Do not use c_build_function_call_vec to avoid folding and promotion.
        Simplify.

2017-01-25  Maxim Ostapenko  <m.ostapenko@samsung.com>

        PR lto/79061
        * c-decl.c (pop_scope): Pass main_input_filename to
        build_translation_unit_decl.

2017-01-24  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c: Include "read-rtl-function.h" and
        "run-rtl-passes.h".
        (c_parser_declaration_or_fndef): Rename "gimple-pass-list" in
        grammar to gimple-or-rtl-pass-list.  Add rtl-function-definition
        production.  Update for renaming of field "gimple_pass" to
        "gimple_or_rtl_pass".  If __RTL was seen, call
        c_parser_parse_rtl_body.  Convert a timevar_push/pop pair
        to an auto_timevar, to cope with early exit.
        (c_parser_declspecs): Update RID_GIMPLE handling for renaming of
        field "gimple_pass" to "gimple_or_rtl_pass", and for renaming of
        c_parser_gimple_pass_list to c_parser_gimple_or_rtl_pass_list.
        Handle RID_RTL.
        (c_parser_parse_rtl_body): New function.
        * c-tree.h (enum c_declspec_word): Add cdw_rtl.
        (struct c_declspecs): Rename field "gimple_pass" to
        "gimple_or_rtl_pass".  Add field "rtl_p".
        * gimple-parser.c (c_parser_gimple_pass_list): Rename to...
        (c_parser_gimple_or_rtl_pass_list): ...this, updating accordingly.
        * gimple-parser.h (c_parser_gimple_pass_list): Rename to...
        (c_parser_gimple_or_rtl_pass_list): ...this.

2017-01-20  Marek Polacek  <polacek@redhat.com>

        PR c/64279
        * c-typeck.c (build_conditional_expr): Warn about duplicated branches.

2017-01-13  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_compound_statement): Handle
        nops.

2017-01-13  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_postfix_expression): Parse
        _Literal ( type-name ) number.

2017-01-12  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_postfix_expression): Parse
        __MEM.

2017-01-11  Jakub Jelinek  <jakub@redhat.com>

        PR c++/72813
        * c-decl.c (pop_file_scope): Set flag_syntax_only to 1 after writing
        PCH file.

2017-01-11  Richard Biener  <rguenther@suse.de>

        PR bootstrap/79052
        * gimple-parser.c (c_parser_gimple_switch_stmt): Add missing
        returns on parse errors.

2017-01-04  Marek Polacek  <polacek@redhat.com>

        PR c++/64767
        * c-parser.c (c_parser_postfix_expression): Mark zero character
        constants by setting original_type in c_expr.
        * c-typeck.c (parser_build_binary_op): Warn when a pointer is compared
        with a zero character constant.
        (char_type_p): New function.

2017-01-04  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (c_parser_declaration_or_fndef): Create a
        rich_location at init_loc and parse it to start_init.
        (last_init_list_comma): New global.
        (c_parser_braced_init): Update last_init_list_comma when parsing
        commas.  Pass it to pop_init_level.  Pass location of closing
        brace to pop_init_level.
        (c_parser_postfix_expression_after_paren_type): Create a
        rich_location at type_loc and parse it to start_init.
        (c_parser_omp_declare_reduction): Likewise for loc.
        * c-tree.h (start_init): Add rich_location * param.
        (pop_init_level): Add location_t param.
        * c-typeck.c (struct initializer_stack): Add field
        "missing_brace_richloc".
        (start_init): Add richloc param, use it to initialize
        the stack node's missing_brace_richloc.
        (last_init_list_comma): New decl.
        (finish_implicit_inits): Pass last_init_list_comma to
        pop_init_level.
        (push_init_level): When finding missing open braces, add fix-it
        hints to the richloc.
        (pop_init_level): Add "insert_before" param and pass it
        when calling pop_init_level.  Add fixits about missing
        close braces to any richloc.  Use the richloc for the
        -Wmissing-braces warning.
        (set_designator): Pass last_init_list_comma to pop_init_level.
        (process_init_element): Likewise.

2017-01-01  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.

2016-12-21  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/78817
        * c-typeck.c (build_function_call_vec): If check_function_arguments
        returns true, set TREE_NO_WARNING on CALL_EXPR.

        PR c/77767
        * c-decl.c (grokdeclarator): If *expr is non-NULL, append expression
        to *expr instead of overwriting it.

2016-12-20  Richard Biener  <rguenther@suse.de>

        * gimple-parser.c (c_parser_gimple_compound_statement): Improve
        error recovery.
        (c_parser_gimple_statement): Only build assigns for non-error
        stmts.
        (c_parser_gimple_postfix_expression_after): Improve error recovery.

2016-12-14  Martin Jambor  <mjambor@suse.cz>

        * c-parser.c: Include omp-general.h and omp-offload.h instead of
        omp-low.h.
        (c_finish_oacc_routine): Adjusted call to
        get_oacc_fn_attrib, build_oacc_routine_dims and replace_oacc_fn_attrib
        to use their new names.
        (c_parser_oacc_enter_exit_data): Adjusted call to find_omp_clause to
        use its new name.
        (c_parser_oacc_update): Likewise.
        (c_parser_omp_simd): Likewise.
        (c_parser_omp_target_update): Likewise.
        * c-typeck.c: Include omp-general.h instead of omp-low.h.
        (c_finish_omp_cancel): Adjusted call to find_omp_clause to use its new
        name.
        (c_finish_omp_cancellation_point): Likewise.
        * gimple-parser.c: Do not include omp-low.h

2016-12-02  Cesar Philippidis  <cesar@codesourcery.com>
            James Norris  <jnorris@codesourcery.com>

        * c-parser.c (c_parser_pragma): Error when PRAGMA_OACC_{ENTER_DATA,
        EXIT_DATA,WAIT} are not used in compound statements.
        (c_parser_oacc_enter_exit_data): Update diagnostics.

2016-11-21  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c++/71973
        * c-decl.c (diagnose_mismatched_decls): Use
        OPT_Wbuiltin_declaration_mismatch here too.

2016-11-18  Richard Sandiford  <richard.sandiford@arm.com>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * c-decl.c (merge_decls): Use SET_DECL_MODE.
        (make_label, finish_struct): Likewise.

2016-11-14  Prasad Ghangal  <prasad.ghangal@gmail.com>
            Richard Biener  <rguenther@suse.de>

        * Make-lang.in (C_AND_OBJC_OBJS): Add gimple-parser.o.
        * config-lang.in (gtfiles): Add c/c-parser.h.
        * c-tree.h (enum c_declspec_word): Add cdw_gimple.
        (struct c_declspecs): Add gimple_pass member and gimple_p flag.
        * c-parser.c (enum c_id_kind, struct c_token,
        c_parser_next_token_is, c_parser_next_token_is_not,
        c_parser_next_token_is_keyword,
        enum c_lookahead_kind, enum c_dtr_syn, enum c_parser_prec):
        Split out to ...
        * c-parser.h: ... new header.
        * c-parser.c: Include c-parser.h and gimple-parser.h.
        (c_parser_peek_token, c_parser_peek_2nd_token,
        c_token_starts_typename, c_parser_next_token_starts_declspecs,
        c_parser_next_tokens_start_declaration, c_parser_consume_token,
        c_parser_error, c_parser_require, c_parser_skip_until_found,
        c_parser_declspecs, c_parser_declarator, c_parser_peek_nth_token,
        c_parser_type_name): Export.
        (c_parser_tokens_buf): New function.
        (c_parser_error): Likewise.
        (c_parser_set_error): Likewise.
        (c_parser_declspecs): Handle RID_GIMPLE.
        (c_parser_declaration_or_fndef): Parse __GIMPLE marked body
        via c_parser_parse_gimple_body.
        * c-parser.h (c_parser_peek_token, c_parser_peek_2nd_token,
        c_token_starts_typename, c_parser_next_token_starts_declspecs,
        c_parser_next_tokens_start_declaration, c_parser_consume_token,
        c_parser_error, c_parser_require, c_parser_skip_until_found,
        c_parser_declspecs, c_parser_declarator, c_parser_peek_nth_token,
        c_parser_type_name): Declare.
        (struct c_parser): Declare forward.
        (c_parser_tokens_buf): Declare.
        (c_parser_error): Likewise.
        (c_parser_set_error): Likewise.
        * gimple-parser.c: New file.
        * gimple-parser.h: Likewise.

2016-11-13  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR c/35503
        * c-parser.c (c_parser_postfix_expression_after_primary): Call
        warn_for_restrict.

2016-09-11  Le-Chun Wu  <lcwu@google.com>
            Mark Wielaard  <mjw@redhat.com>

        * c-decl.c (warn_if_shadowing): Use the warning code corresponding
        to the given -Wshadow= variant.

2016-10-13  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * c-typeck.c: Include memmodel.h.

2016-10-13  Jakub Jelinek  <jakub@redhat.com>

        PR target/77957
        * c-objc-common.h (LANG_HOOKS_GETDECLS): Use hook_tree_void_null
        instead of lhd_return_null_tree_v.

2016-10-07  Bernd Schmidt  <bschmidt@redhat.com>

        PR c++/69733
        * c-decl.c (smallest_type_quals_location): New static function.
        (grokdeclarator): Try to find the correct location for an ignored
        qualifier.

2016-09-26  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * c-decl.c (pop_scope): Add gcc_fallthrough.

2016-09-26  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * c-parser.c (struct c_token): Add flags field.
        (c_lex_one_token): Pass it to c_lex_with_flags.
        (c_parser_declaration_or_fndef): Turn __attribute__((fallthrough));
        into IFN_FALLTHROUGH.
        (c_parser_label): Set FALLTHROUGH_LABEL_P on labels.  Handle
        attribute fallthrough after a case label or default label.
        (c_parser_statement_after_labels): Handle RID_ATTRIBUTE.

2016-09-24  Marek Polacek  <polacek@redhat.com>

        PR c/77490
        * c-typeck.c (build_unary_op): Warn about bit not on expressions that
        have boolean value.  Warn about ++/-- on booleans.

2016-09-23  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (incomplete_record_decls): Remove unnecessary
        = vNULL initialization of file scope vec.

2016-09-16  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c (lvalue_p): Use true and false instead of 1 and 0.

2016-09-14  Marek Polacek  <polacek@redhat.com>

        * c-array-notation.c (create_cmp_incr): Use false instead of 0.
        (fix_array_notation_expr): Likewise.
        * c-decl.c (finish_decl): Likewise.
        * c-parser.c (c_parser_postfix_expression_after_primary): Likewise.
        * c-typeck.c (array_to_pointer_conversion): Use true instead of 1.
        (function_to_pointer_conversion): Use false instead of 0.
        (convert_lvalue_to_rvalue): Likewise.
        (parser_build_unary_op): Likewise.
        (build_atomic_assign): Likewise.
        (build_unary_op): Change nonconvert parameter type to bool, use
        true/false instead of 1/0.
        (build_binary_op): Use true instead of 1.

2016-09-13  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (c_parser_declaration_or_fndef): Update for renaming
        of add_fixit_insert to add_fixit_insert_before.

2016-09-13  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c (build_unary_op): Rename FLAG parameter to NOCONVERT.  Use
        it.

2016-09-12  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c++/77496
        * c-parser.c (c_parser_conditional_expression): Pass the rightmost
        COMPOUND_EXPR to warn_for_omitted_condop.

2016-09-07  David Malcolm  <dmalcolm@redhat.com>

        * c-lang.c (LANG_HOOKS_GET_SUBSTRING_LOCATION): Use
        c_get_substring_location for this new langhook.

2016-09-02  Jakub Jelinek  <jakub@redhat.com>

        PR c/65467
        * c-parser.c (c_parser_declspecs): Don't sorry about _Atomic if
        flag_openmp.
        (c_parser_omp_variable_list): Use convert_lvalue_to_rvalue
        instead of mark_exp_read on low_bound/length expression.
        (c_parser_omp_clause_num_gangs, c_parser_omp_clause_num_threads,
        c_parser_omp_clause_num_tasks, c_parser_omp_clause_grainsize,
        c_parser_omp_clause_priority, c_parser_omp_clause_hint,
        c_parser_omp_clause_num_workers, c_parser_oacc_shape_clause,
        c_parser_oacc_clause_tile, c_parser_omp_clause_schedule,
        c_parser_omp_clause_vector_length, c_parser_omp_clause_num_teams,
        c_parser_omp_clause_thread_limit, c_parser_omp_clause_aligned,
        c_parser_omp_clause_linear, c_parser_omp_clause_safelen,
        c_parser_omp_clause_simdlen, c_parser_omp_clause_device,
        c_parser_omp_clause_dist_schedule): Use convert_lvalue_to_rvalue
        instead of mark_expr_read.
        (c_parser_omp_declare_reduction): Reject _Atomic qualified types.
        * c-objc-common.h (LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
        LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP): Redefine.
        * c-tree.h (c_omp_clause_copy_ctor): New prototype.
        * c-typeck.c (handle_omp_array_sections_1): Diagnose _Atomic qualified
        array section bases outside of depend clause, for depend clause
        use convert_lvalue_to_rvalue on the base.
        (c_finish_omp_clauses): Reject _Atomic qualified vars in reduction,
        linear, aligned, map, to and from clauses.
        (c_omp_clause_copy_ctor): New function.

2016-09-01  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * c-typeck.c (composite_type): Add FALLTHRU comment.

2016-08-31  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (c_parser_declaration_or_fndef): Add trailing space
        to the insertion fixits for "struct", "union", and "enum".

2016-08-30  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.c (implicit_decl_warning): Use add_fixit_replace
        rather than add_fixit_misspelled_id.
        (undeclared_variable): Likewise.
        * c-parser.c (c_parser_declaration_or_fndef): Likewise.  Remove
        now-redundant "here" params from add_fixit_insert method calls.
        (c_parser_parameter_declaration): Likewise.
        * c-typeck.c (build_component_ref): Remove now-redundant range
        param from add_fixit_replace method calls.

2016-08-25  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c (parser_build_binary_op): Pass LHS to
        warn_logical_not_parentheses.

2016-08-25  Marek Polacek  <polacek@redhat.com>

        PR c/77323
        * c-decl.c (declspecs_add_type): Set typespec_word even when __intN
        or _FloatN or _FloatNx is not supported.
        (finish_declspecs): Set type to integer_type_node when _FloatN or
        _FloatNx is not supported.

2016-08-19  Joseph Myers  <joseph@codesourcery.com>

        PR c/32187
        * c-tree.h (cts_floatn_nx): New enum c_typespec_keyword value.
        (struct c_declspecs): Add field floatn_nx_idx.
        * c-decl.c (declspecs_add_type, finish_declspecs): Handle _FloatN
        and _FloatNx type specifiers.
        * c-parser.c (c_keyword_starts_typename, c_token_starts_declspecs)
        (c_parser_declspecs, c_parser_attribute_any_word)
        (c_parser_objc_selector): Use CASE_RID_FLOATN_NX.
        * c-typeck.c (c_common_type): Handle _FloatN and _FloatNx types.
        (convert_arguments): Avoid promoting _FloatN and _FloatNx types
        narrower than double.

2016-08-12  Jakub Jelinek  <jakub@redhat.com>
            Martin Liska  <mliska@suse.cz>

        PR c/67410
        * c-typeck.c (set_nonincremental_init_from_string): Use / instead of
        % to determine val element to change.  Assert that
        wchar_bytes * charwidth fits into val array.

2016-08-12  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * c-parser.c (c_parser_external_declaration): Add FALLTHRU.
        (c_parser_postfix_expression): Likewise.
        * c-typeck.c (build_unary_op): Adjust fall through comment.
        (c_mark_addressable): Likewise.

2016-08-11  Jakub Jelinek  <jakub@redhat.com>

        PR c/72816
        * c-decl.c (grokdeclarator): When adding TYPE_DOMAIN for flexible
        array member through typedef, for orig_qual_indirect == 0 clear
        orig_qual_type.

2016-08-08  David Malcolm  <dmalcolm@redhat.com>

        PR c/64955
        * c-lang.c (LANG_HOOKS_RUN_LANG_SELFTESTS): If CHECKING_P, wire
        this up to selftest::run_c_tests.
        (selftest::run_c_tests): New function.

2016-08-04  Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.c (struct oacc_routine_data): Add error_seen and
        fndecl_seen members.
        (c_finish_oacc_routine): Use these.
        (c_parser_declaration_or_fndef): Adjust.
        (c_parser_oacc_routine): Likewise.  Support more C language
        constructs, and improve diagnostics.  Move pragma context
        checking...
        (c_parser_pragma): ... here.

        * c-parser.c (struct oacc_routine_data): New.
        (c_parser_declaration_or_fndef, c_parser_oacc_routine): Use it.
        Simplify code.
        (c_finish_oacc_routine): Likewise.  Don't attach clauses to "omp
        declare target" attribute.

2016-08-01  Jan Beulich  <jbeulich@suse.com>

        * c-fold.c (c_fully_fold_internal): Also emit shift count
        warnings for vector types.
        * c-typeck.c (build_binary_op): Likewise.

2016-07-29  Marek Polacek  <polacek@redhat.com>

        PR c/71742
        * c-decl.c (finish_struct): Rephrase an error message.

        PR c/71853
        * c-parser.c (c_parser_switch_statement): Initialize ce.original_type
        to error node for invalid code.

        PR c/71573
        * c-decl.c (implicitly_declare): Return decl early not only for
        error_mark_nodes, but for anything that is not a FUNCTION_DECL.

2016-07-29  Jakub Jelinek  <jakub@redhat.com>

        PR c/71969
        * c-decl.c (finish_function): Only set DECL_DISREGARD_INLINE_LIMITS
        on GNU extern inline functions.

2016-07-29  Marek Polacek  <polacek@redhat.com>

        PR c/71583
        * c-parser.c (c_parser_postfix_expression_after_paren_type): Also
        check expr.value.

2016-07-22  Uros Bizjak  <ubizjak@gmail.com>

        * c-typeck.c: Use HOST_WIDE_INT_1 instead of (HOST_WIDE_INT) 1,

2016-07-20  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.c (struct edit_distance_traits<cpp_hashnode *>): Move to
        spellcheck-tree.h
        (best_macro_match): Likewise, converting from a typedef to a
        subclass.
        (find_closest_macro_cpp_cb): Move to spellcheck-tree.c.
        (lookup_name_fuzzy): Update for change of best_macro_match to a
        subclass with a ctor that calls cpp_forall_identifiers.

2016-07-20  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.c (implicit_decl_warning): Update for conversion of
        return type of lookup_name_fuzzy to const char *.
        (undeclared_variable): Likewise.
        (lookup_name_fuzzy): Convert return type from tree to
        const char *.
        * c-parser.c (c_parser_declaration_or_fndef): Update for
        conversion of return type of lookup_name_fuzzy to const char *.
        (c_parser_parameter_declaration): Likewise.

2016-07-15  Cesar Philippidis  <cesar@codesourcery.com>

        * c-parser.c (c_parser_oacc_declare): Don't scan for
        GOMP_MAP_POINTER.
        * c-typeck.c (handle_omp_array_sections): Mark data clauses with
        GOMP_MAP_FORCE_{PRESENT,TO,FROM,TOFROM} as potentially having
        zero-length subarrays.

2016-07-15  Jakub Jelinek  <jakub@redhat.com>

        PR c/71858
        * c-decl.c (implicit_decl_warning): Use FUZZY_LOOKUP_FUNCTION_NAME
        instead of FUZZY_LOOKUP_NAME.
        (lookup_name_fuzzy): For FUZZY_LOOKUP_FUNCTION_NAME consider
        FUNCTION_DECLs, {VAR,PARM}_DECLs function pointers and macros.

2016-07-14  Jakub Jelinek  <jakub@redhat.com>

        PR c/71858
        * c-decl.c (lookup_name_fuzzy): Ignore binding->invisible.

2016-07-12  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * c-parser.c (c_parser_generic_selection): Make type of variable
        auto_vec.
        (c_parser_omp_declare_simd): Likewise.

2016-07-12  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * c-decl.c (struct c_struct_parse_info): Change member types
        from vec to auto_vec.
        (start_struct): Adjust.
        (finish_struct): Likewise.

2016-07-02  Jakub Jelinek  <jakub@redhat.com>

        PR c/71719
        * c-typeck.c (mark_exp_read): Handle VIEW_CONVERT_EXPR.

2016-06-29  Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.c (c_parser_pragma) <PRAGMA_OMP_CANCELLATION_POINT>:
        Move pragma context checking into...
        (c_parser_omp_cancellation_point): ... here, and improve
        diagnostic messages.
        * c-typeck.c (c_finish_omp_cancel)
        (c_finish_omp_cancellation_point): Improve diagnostic messages.

2016-06-29  Jakub Jelinek  <jakub@redhat.com>

        PR c/71685
        * c-typeck.c (c_build_qualified_type): Don't clear
        C_TYPE_INCOMPLETE_VARS for the main variant.

2016-06-28  Martin Sebor  <msebor@redhat.com>

        PR c/71552
        * c-typeck.c (output_init_element): Diagnose incompatible types
        before non-constant initializers.

2016-06-28  Jakub Jelinek  <jakub@redhat.com>

        * Make-lang.in: Don't cat ../stage_current if it does not exist.

2016-06-23  Andi Kleen  <ak@linux.intel.com>

        * Make-lang.in: Add support for autofdo.

2016-06-22  David Malcolm  <dmalcolm@redhat.com>

        PR c/70339
        * c-decl.c: Include spellcheck-tree.h and gcc-rich-location.h.
        (implicit_decl_warning): When issuing warnings for implicit
        declarations, attempt to provide a suggestion via
        lookup_name_fuzzy.
        (undeclared_variable): Likewise when issuing errors.
        (lookup_name_in_scope): Likewise.
        (struct edit_distance_traits<cpp_hashnode *>): New struct.
        (best_macro_match): New typedef.
        (find_closest_macro_cpp_cb): New function.
        (lookup_name_fuzzy): New function.
        * c-parser.c: Include gcc-rich-location.h.
        (c_token_starts_typename): Split out case CPP_KEYWORD into...
        (c_keyword_starts_typename): ...this new function.
        (c_parser_declaration_or_fndef): When issuing errors about
        missing "struct" etc, add a fixit.  For other kinds of errors,
        attempt to provide a suggestion via lookup_name_fuzzy.
        (c_parser_parms_declarator): When looking ahead to detect typos in
        type names, also reject CPP_KEYWORD.
        (c_parser_parameter_declaration): When issuing errors about
        unknown type names, attempt to provide a suggestion via
        lookup_name_fuzzy.
        * c-tree.h (c_keyword_starts_typename): New prototype.

2016-06-20  Joseph Myers  <joseph@codesourcery.com>

        PR c/71601
        * c-typeck.c (build_conditional_expr): Return error_mark_node if
        c_common_type returns error_mark_node.

2016-06-19  Martin Sebor  <msebor@redhat.com>

        PR c/69507
        * c-parser.c (c_parser_alignof_expression): Avoid diagnosing
        __alignof__ (expression).

2016-06-14  David Malcolm  <dmalcolm@redhat.com>

        * c-typeck.c: Include spellcheck-tree.h rather than spellcheck.h.

2016-06-14  David Malcolm  <dmalcolm@redhat.com>

        * c-typeck.c (build_component_ref): Simplify fixit code by
        using gcc_rich_location::add_fixit_misspelled_id.
        (set_init_label): Likewise.

2016-06-13  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (c_parser_initelt): Provide location of name for new
        location_t param of set_init_label.
        * c-tree.h (set_init_label): Add location_t param.
        * c-typeck.c (set_init_index): Add "fieldname_loc" location_t
        param and use it when issuing error messages about unrecognized
        field names.  Attempt to provide a fixit hint if appropriate,
        otherwise update the error message to provide the type name.

2016-06-10  Thomas Schwinge  <thomas@codesourcery.com>

        PR c/71381
        * c-parser.c (c_parser_omp_variable_list) <OMP_CLAUSE__CACHE_>:
        Loosen checking.

2016-06-08  Martin Sebor  <msebor@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR c++/70507
        PR c/68120
        * c-typeck.c (convert_arguments): Don't promote last argument
        of BUILT_IN_{ADD,SUB,MUL}_OVERFLOW_P.

2016-06-08  Marek Polacek  <polacek@redhat.com>

        PR c/71418
        * c-decl.c (grokdeclarator): Check TYPE_P.

        PR c/71426
        * c-decl.c (get_parm_info): Don't crash on an assert on invalid
        code.

2016-06-07  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (c_parser_postfix_expression): In __builtin_offsetof
        and structure element reference, capture the location of the
        element name token and pass it to build_component_ref.
        (c_parser_postfix_expression_after_primary): Likewise for
        structure element dereference.
        (c_parser_omp_variable_list): Likewise for
        OMP_CLAUSE_{_CACHE, MAP, FROM, TO},
        * c-tree.h (build_component_ref): Add location_t param.
        * c-typeck.c (build_component_ref): Add location_t param
        COMPONENT_LOC.  Use it, if available, when issuing hints about
        mispelled member names to provide a fixit replacement hint.

2016-06-06  Marek Polacek  <polacek@redhat.com>

        PR c/71362
        * c-parser.c (c_parser_direct_declarator): Set location.

2016-06-06  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c (comptypes_internal): Handle comparisons of
        INTEGER_TYPE, FIXED_POINT_TYPE, and REAL_TYPE nodes.  Don't check
        TYPE_REF_CAN_ALIAS_ALL.

2016-06-03  Chung-Lin Tang  <cltang@codesourcery.com>

        * c-typeck.c (c_finish_omp_clauses): Mark OpenACC reduction
        arguments as addressable when async clause exists.

2016-05-30  Jakub Jelinek  <jakub@redhat.com>

        PR c++/71349
        * c-parser.c (c_parser_omp_for): Don't disallow nowait clause
        when combined with target construct.

2016-05-26  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_clause_schedule): Warn if
        OMP_CLAUSE_SCHEDULE_CHUNK_EXPR is known not to be positive.

2016-05-25  Marek Polacek  <polacek@redhat.com>

        PR c/71265
        * c-decl.c (c_make_fname_decl): Don't check seen_error.

        PR c/71266
        * c-decl.c (store_parm_decls_oldstyle): Skip non-PARM_DECLs.

2016-05-24  Cesar Philippidis  <cesar@codesourcery.com>

        * c-parser.c (c_parser_oacc_declare): Add support for
        GOMP_MAP_FIRSTPRIVATE_POINTER.
        * c-typeck.c (handle_omp_array_sections_1): Replace bool is_omp
        argument with enum c_omp_region_type ort.
        (handle_omp_array_sections): Likewise.  Update call to
        handle_omp_array_sections_1.
        (c_finish_omp_clauses): Add specific errors and warning messages for
        OpenACC.  Use firsrtprivate pointers for OpenACC subarrays.  Update
        call to handle_omp_array_sections.

2016-05-24  Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.c (c_parser_oacc_routine): Tighten syntax checks.

2016-05-24  Richard Biener  <rguenther@suse.de>

        PR middle-end/70434
        PR c/69504
        * c-typeck.c (build_array_ref): Do not complain about indexing
        non-lvalue vectors.  Adjust for function name change.

2016-05-20  Martin Sebor  <msebor@redhat.com>

        PR c/71115
        * c-typeck.c (error_init): Use
        expansion_point_location_if_in_system_header.
        (warning_init): Same.

2016-05-19  David Malcolm  <dmalcolm@redhat.com>

        PR c/71171
        * c-parser.c (c_parser_generic_selection): Use c_expr::set_error
        in error-handling.
        (c_parser_postfix_expression): Likewise.
        * c-tree.h (c_expr::set_error): New method.
        * c-typeck.c (parser_build_binary_op): In error-handling, ensure
        that result's range is initialized.

2016-05-17  James Greenhalgh  <james.greenhalgh@arm.com>

        * c-typeck.c (parser_build_unary_op): Fix formatting.

2016-05-16  Matthew Wahab  <matthew.wahab@arm.com>

        * c-decl.c (grokdeclarator): Remove errmsg and use of
        targetm.invalid_return_type.
        (grokparms): Remove errmsg and use of
        targetm.invalid_parameter_type.

2016-05-13  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.c (grokdeclarator): For C11, discard qualifiers on
        function return type.

2016-05-12  Marek Polacek  <polacek@redhat.com>

        PR c/70756
        * c-decl.c (build_compound_literal): Pass LOC down to
        c_incomplete_type_error.
        * c-tree.h (require_complete_type): Adjust declaration.
        (c_incomplete_type_error): Likewise.
        * c-typeck.c (require_complete_type): Add location parameter, pass it
        down to c_incomplete_type_error.
        (c_incomplete_type_error): Add location parameter, pass it down to
        error_at.
        (build_component_ref): Pass location down to c_incomplete_type_error.
        (default_conversion): Pass location down to require_complete_type.
        (build_array_ref): Likewise.
        (build_function_call_vec): Likewise.
        (convert_arguments): Likewise.
        (build_unary_op): Likewise.
        (build_c_cast): Likewise.
        (build_modify_expr): Likewise.
        (convert_for_assignment): Likewise.
        (c_finish_omp_clauses): Likewise.

2016-05-11  Mikhail Maltsev  <maltsevm@gmail.com>

        PR c/43651
        * c-decl.c (declspecs_add_qual): Warn when -Wduplicate-decl-specifier
        is enabled.
        * c-errors.c (pedwarn_c90): Return true if warned.
        * c-tree.h (pedwarn_c90): Change return type to bool.
        (enum c_declspec_word): Add new enumerator cdw_atomic.

2016-05-11  Marek Polacek  <polacek@redhat.com>

        PR c++/71024
        * c-decl.c (diagnose_mismatched_decls): Factor out code to
        diagnose_mismatched_attributes and call it.

2016-05-10  Marek Polacek  <polacek@redhat.com>

        PR c/70255
        * c-decl.c (diagnose_mismatched_decls): Warn for optimize attribute
        on a declaration following the definition.

2016-05-05  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_switch_statement): Add IF_P argument,
        parse it through to c_parser_c99_block_statement.
        (c_parser_statement_after_labels): Adjust c_parser_switch_statement
        caller.

2016-05-04  Marek Polacek  <polacek@redhat.com>

        * c-parser.c (c_parser_if_statement): Replace OPT_Wparentheses with
        OPT_Wdangling_else.

2016-05-04  Marek Polacek  <polacek@redhat.com>

        PR c/48778
        * c-typeck.c (build_binary_op): Don't issue -Waddress warnings
        for macro expansions.

2016-05-03  Marek Polacek  <polacek@redhat.com>

        PR c/70859
        * c-typeck.c (build_function_call_vec): Pass LOC and ARG_LOC down to
        check_builtin_function_arguments.

2016-05-03  Richard Biener  <rguenther@suse.de>

        * Make-lang.in (cc1-checksum.c): For stage-final re-use
        the checksum from the previous stage.

2016-05-02  Cesar Philippidis  <cesar@codesourcery.com>

        * c-parser.c (c_parser_oacc_all_clauses): Update call to
        c_finish_omp_clauses.
        (c_parser_omp_all_clauses): Likewise.
        (c_parser_oacc_cache): Likewise.
        (c_parser_oacc_loop): Likewise.
        (omp_split_clauses): Likewise.
        (c_parser_omp_declare_target): Likewise.
        (c_parser_cilk_all_clauses): Likewise.
        (c_parser_cilk_for): Likewise.
        * c-typeck.c (c_finish_omp_clauses): Replace bool arguments
        is_omp, declare_simd, and is_cilk with enum c_omp_region_type ort.

2016-05-02  Marek Polacek  <polacek@redhat.com>

        PR c/70851
        * c-decl.c (grokdeclarator): Diagnose when array's size has an
        incomplete type.

2016-04-29  Cesar Philippidis  <cesar@codesourcery.com>

        PR middle-end/70626
        * c-parser.c (c_parser_oacc_loop): Don't augment mask with
        OACC_LOOP_CLAUSE_MASK.
        (c_parser_oacc_kernels_parallel): Update call to
        c_oacc_split_loop_clauses.

2016-04-28  Andrew MacLeod  <amacleod@redhat.com>

        * c-array-notation.c (fix_builtin_array_notation_fn): Fix final
        argument to build_modify_expr in two cases.

2016-04-27  Bernd Schmidt  <bschmidt@redhat.com>

        * c-parser.c (c_parser_postfix_expression_after_primary): Call
        warn_for_memset instead of warning directly here.

2016-04-26  Marek Polacek  <polacek@redhat.com>

        PR c/67784
        * c-parser.c (c_parser_maybe_reclassify_token): New function factored
        out of ...
        (c_parser_for_statement): ... here.
        (c_parser_if_statement): Use it.
        (c_parser_switch_statement): Use it.
        (c_parser_while_statement): Use it.

        PR c/70791
        * c-decl.c (pushdecl): Pass LOCUS down to warning.

2016-04-20  Ilya Verbin  <ilya.verbin@intel.com>

        PR c++/69363
        * c-parser.c (c_parser_cilk_all_clauses): Use c_finish_omp_clauses
        instead of c_finish_cilk_clauses.
        * c-tree.h (c_finish_omp_clauses): Add new default argument.
        * c-typeck.c (c_finish_omp_clauses): Add new argument.  Allow
        floating-point variables in the linear clause for Cilk Plus.

2016-04-18  Michael Matz  <matz@suse.de>

        * c-decl.c (merge_decls): Use SET_DECL_ALIGN and SET_TYPE_ALIGN.
        (grokdeclarator, parser_xref_tag, finish_enum): Use SET_TYPE_ALIGN.

2016-04-15  Marek Polacek  <polacek@redhat.com>

        PR c/70671
        * c-typeck.c (build_unary_op): Pass location down to error and
        warning call.

2016-04-15  Jakub Jelinek  <jakub@redhat.com>

        PR c/70436
        * c-parser.c (c_parser_pragma): Add IF_P argument, pass it down
        where needed.
        (c_parser_external_declaration, c_parser_struct_or_union_specifier,
        c_parser_parameter_declaration, c_parser_compound_statement_nostart,
        c_parser_objc_class_instance_variables, c_parser_objc_methodprotolist):
        Adjust c_parser_pragma callers.
        (c_parser_statement_after_labels): Likewise.  Adjust c_parser_cilk_for
        caller.
        (c_parser_omp_structured_block): Add IF_P argument, pass it down to
        c_parser_statement.
        (c_parser_oacc_data, c_parser_oacc_host_data, c_parser_oacc_loop,
        c_parser_oacc_kernels_parallel, c_parser_omp_critical,
        c_parser_omp_simd, c_parser_omp_for, c_parser_omp_master,
        c_parser_omp_ordered, c_parser_omp_parallel, c_parser_omp_single,
        c_parser_omp_task, c_parser_omp_taskgroup, c_parser_omp_distribute,
        c_parser_omp_teams, c_parser_omp_target_data, c_parser_omp_target,
        c_parser_omp_taskloop, c_parser_omp_construct, c_parser_cilk_grainsize,
        c_parser_cilk_simd, c_parser_cilk_for): Add IF_P argument, pass it
        down where needed.
        (c_parser_omp_for_loop): Likewise.  Clear IF_P if nbraces.
        (c_parser_omp_sections_scope): Adjust c_parser_omp_structured_block
        calls.

2016-04-13  Marek Polacek  <polacek@redhat.com>

        PR c/70436
        * c-parser.c (c_parser_statement_after_labels): Add IF_P argument and
        adjust callers.
        (c_parser_statement): Likewise.
        (c_parser_c99_block_statement): Likewise.
        (c_parser_while_statement): Likewise.
        (c_parser_for_statement): Likewise.
        (c_parser_if_body): Don't set IF_P here.
        (c_parser_if_statement): Add IF_P argument.  Set IF_P here.  Warn
        about dangling else here.
        * c-tree.h (c_finish_if_stmt): Adjust declaration.
        * c-typeck.c (c_finish_if_stmt): Remove NESTED_IF parameter.  Don't
        warn about dangling else here.

2016-04-04  Marek Polacek  <polacek@redhat.com>

        PR c/70307
        * c-fold.c (c_fully_fold_internal): Handle VEC_COND_EXPR.

2016-03-31  Marek Polacek  <polacek@redhat.com>

        PR c/70297
        * c-decl.c (merge_decls): Also set TYPE_ALIGN and TYPE_USER_ALIGN.

2016-03-18  David Malcolm  <dmalcolm@redhat.com>

        PR c/70281
        * c-parser.c (c_parser_postfix_expression): Set the source range
        for uses of "__builtin_types_compatible_p".

2016-03-17  Jakub Jelinek  <jakub@redhat.com>

        PR c/70280
        * c-typeck.c (composite_type): Don't count void_list_node
        into len, if the list is terminated by void_list_node, start
        with void_list_node instead of NULL for newargs.  Stop
        at void_list_node.

2016-03-16  Marek Polacek  <polacek@redhat.com>

        PR c/70093
        * c-typeck.c (build_function_call_vec): Create a TARGET_EXPR for
        nested functions returning VM types.

2016-03-09  Cesar Philippidis  <cesar@codesourcery.com>

        * c-parser.c (c_parser_oacc_loop): Update cclauses and clauses
        when calling c_finish_omp_clauses.

2016-03-04  Bernd Schmidt  <bschmidt@redhat.com>

        PR c/69824
        * c-decl.c (get_parm_info): Don't queue implicit function declarations
        for later.

2016-03-04  Marek Polacek  <polacek@redhat.com>

        PR c/69798
        * c-parser.c (c_parser_postfix_expression): Call
        c_parser_cast_expression rather than c_parser_postfix_expression.

2016-03-01  Jakub Jelinek  <jakub@redhat.com>

        PR c/69796
        PR c/69974
        * c-parser.c (c_parser_translation_unit): Don't change TREE_TYPE
        of incomplete decls to error_mark_node.

2016-02-24  Marek Polacek  <polacek@redhat.com>

        PR c/69819
        * c-decl.c (finish_decl): Don't update the copy of the type of a
        different decl type.

2016-02-23  Jakub Jelinek  <jakub@redhat.com>

        PR objc/69844
        * c-parser.c (c_parser_for_statement): Properly handle ObjC classes
        in id_kind reclassification.

2016-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR c/69835
        * c-typeck.c (build_binary_op): Revert 2015-09-09 change.

2016-02-16  James Norris  <jnorris@codesourcery.com>

        PR c/64748
        * c-parser.c (c_parser_oacc_data_clause_deviceptr): Allow parms.

2016-02-12  Bernd Schmidt  <bschmidt@redhat.com>

        * c-decl.c (build_null_declspecs): Zero the entire struct.

        PR c/69522
        * c-parser.c (c_parser_braced_init): New arg outer_obstack.  All
        callers changed.  If nested_p is true, use it to call
        finish_implicit_inits.
        * c-tree.h (finish_implicit_inits): Declare.
        * c-typeck.c (finish_implicit_inits): New function.  Move code
        from ...
        (push_init_level): ... here.
        (set_designator, process_init_element): Call finish_implicit_inits.

2016-02-11  Jakub Jelinek  <jakub@redhat.com>

        PR c/69768
        * c-typeck.c (parser_build_binary_op): Strip nops from integer_zerop
        arguments for -Waddress warning.

2016-02-04  Jakub Jelinek  <jakub@redhat.com>

        PR c/69669
        * c-decl.c (finish_enum): When honoring mode attribute,
        make sure to use proper TYPE_MIN_VALUE and TYPE_MAX_VALUE.

2016-01-29  Jakub Jelinek  <jakub@redhat.com>

        PR debug/69518
        * c-decl.c (finish_struct): Clear C_TYPE_INCOMPLETE_VARS in
        all type variants, not just TYPE_MAIN_VARIANT.

2016-01-27  Jakub Jelinek  <jakub@redhat.com>

        PR debug/66869
        * c-decl.c (c_write_global_declarations_1): Warn with
        warn_unused_function if static prototype without definition
        is not C_DECL_USED.

2016-01-27  Marek Polacek  <polacek@redhat.com>

        PR c/68062
        * c-typeck.c (build_binary_op) [EQ_EXPR, GE_EXPR]: Promote operand
        to unsigned, if needed.  Add -Wsign-compare warning.

2016-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/69483
        * c-parser.c (c_parser_translation_unit): Use FOR_EACH_VEC_ELT.

2016-01-20  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR c/24293
        * c-tree.h (incomplete_record_decls): Declare.
        * c-parser.c (incomplete_record_decls): Define.
        (c_parser_translation_unit): Iterate through incomplete_record_decls and
        report error if any decl has zero size.
        * c-decl.c (finish_decl): Append static decl with incomplete struct/union
        or enum type to incomplete_record_decls.

2016-01-14  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/68773
        * c-parser.c (c_parser_oacc_declare, c_parser_omp_declare_target): Don't
        set force_output.

2016-01-14  Marek Polacek  <polacek@redhat.com>

        PR c/69262
        * c-decl.c (grokdeclarator): Provide more information for invalid
        array declarations.

2016-01-06  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (c_parser_unary_expression): For dereferences, build
        a combined location before calling build_indirect_ref, so that
        error reports cover the full range, manually updating the c_expr
        src_range.

2016-01-06  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/69099
        * c-convert.c (convert) [INTEGER_TYPE]: Drop ARG.  Don't pass ARG to
        ubsan_instrument_float_cast.  Fold EXPR.  Use NULL_TREE instead of
        NULL.

2016-01-04  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.

2016-01-04  Marek Polacek  <polacek@redhat.com>

        PR c/68908
        * c-typeck.c (build_atomic_assign): Improve commentary.  Add
        optimization to use __atomic_fetch_* built-in if possible.

2015-12-23  Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.c (c_parser_oacc_clause_use_device): Merge function
        into...
        (c_parser_omp_clause_use_device_ptr): ... this function.  Adjust
        all users.

2015-12-22  Marek Polacek  <polacek@redhat.com>

        PR c/69002
        * c-typeck.c (build_component_ref): Warn when acessing elements of
        atomic structures or unions.

2015-12-21  David Malcolm  <dmalcolm@redhat.com>

        * c-typeck.c: Include "gcc-rich-location.h".
        (build_binary_op): In the two places that call binary_op_error,
        create a gcc_rich_location and populate it with the location of
        the binary op and its two operands.

2015-12-16  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (c_parser_statement_after_labels): When calling
        c_finish_return, Use the return expression's location if it has
        one, falling back to the location of the first token within it.
        * c-typeck.c (c_finish_return): When issuing warnings about
        the incorrect presence/absence of a return value, issue a note
        showing the declaration of the function.

2015-12-16  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (struct c_parser): Expand array "tokens_buf" from 2
        to 4.
        (c_parser_peek_nth_token): New function.
        (c_parser_peek_conflict_marker): New function.
        (c_parser_error): Detect conflict markers and report them as such.

2015-12-16  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (c_parser_postfix_expression): Use EXPR_LOC_OR_LOC
        to preserve range information for the primary expression
        in the call to c_parser_postfix_expression_after_primary.

2015-12-16  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (c_parser_static_assert_declaration_no_semi): Use the
        expression location, falling back on the first token location,
        rather than always using the latter.

2015-12-16  Marek Polacek  <polacek@redhat.com>

        PR c/64637
        * c-typeck.c (c_process_expr_stmt): Use location of the expression if
        available.

2015-12-15  Marek Polacek  <polacek@redhat.com>

        PR c/68907
        * c-typeck.c (build_atomic_assign): Set TREE_NO_WARNING on an
        artificial decl.

2015-12-08  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (c_parser_alignof_expression): Capture location of
        closing parenthesis (if any), or of end of unary expression, and
        use it to build a src_range for the expression.

2015-12-08  David Malcolm  <dmalcolm@redhat.com>

        PR c/68757
        * c-parser.c (c_parser_get_builtin_args): Add
        "out_close_paren_loc" param, and write back to it.
        (c_parser_postfix_expression): Capture the closing
        parenthesis location for RID_CHOOSE_EXPR,
        RID_BUILTIN_CALL_WITH_STATIC_CHAIN, RID_BUILTIN_COMPLEX,
        RID_BUILTIN_SHUFFLE and use it to set the source range
        for such expressions; within RID_BUILTIN_COMPLEX set
        the underlying location.

2015-12-07  Marek Polacek  <polacek@redhat.com>

        PR c/68668
        * c-decl.c (grokdeclarator): If ORIG_QUAL_INDIRECT is indirect, use
        TREE_TYPE of ORIG_QUAL_TYPE, otherwise decrement ORIG_QUAL_INDIRECT.

2015-12-04  Eric Botcazou  <ebotcazou@adacore.com>

        * c-tree.h (c_build_va_arg): Adjust prototype.
        * c-parser.c (c_parser_postfix_expression): Adjust call to above.
        * c-typeck.c (c_build_va_arg): Rename LOC parameter to LOC2, add LOC1
        parameter, adjust throughout and issue an error if EXPR is a component
        with reverse storage order.

2015-12-02  Jason Merrill  <jason@redhat.com>

        * c-fold.c (c_disable_warnings, c_enable_warnings, c_fully_fold)
        (c_fully_fold_internal, decl_constant_value_for_optimization):
        Move from c-common.c.
        * c-tree.h: Declare decl_constant_value_for_optimization.
        * Make-lang.in (C_AND_OBJC_OBJS): Add c-fold.o.

2015-12-02  Joseph Myers  <joseph@codesourcery.com>

        PR c/68162
        * c-decl.c (grokdeclarator): Set first_non_attr_kind before
        following link from declarator to next declarator.  Track original
        qualified type and pass it to c_build_qualified_type.
        * c-typeck.c (c_build_qualified_type): Add arguments
        orig_qual_type and orig_qual_indirect.

2015-12-02  Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_name)
        (c_parser_oacc_all_clauses): Alphabetical sorting.

2015-12-02  Jakub Jelinek  <jakub@redhat.com>

        PR c/68533
        * c-decl.c (get_parm_info): Use b->locus instead of input_location
        for diagnostics.

2015-12-01  Julian Brown  <julian@codesourcery.com>
            Cesar Philippidis  <cesar@codesourcery.com>
            James Norris  <James_Norris@mentor.com>

        * c-parser.c (c_parser_omp_clause_name): Add use_device support.
        (c_parser_oacc_clause_use_device): New function.
        (c_parser_oacc_all_clauses): Add use_device support.
        (OACC_HOST_DATA_CLAUSE_MASK): New macro.
        (c_parser_oacc_host_data): New function.
        (c_parser_omp_construct): Add host_data support.
        * c-tree.h (c_finish_oacc_host_data): Add prototype.
        * c-typeck.c (c_finish_oacc_host_data): New function.
        (c_finish_omp_clauses): Add use_device support.

2015-11-29  Jan Hubicka  <hubicka@ucw.cz>

        PR c/67106
        * c-decl.c: Set TYPE_PACKED in variants.

2015-11-27  Martin Liska  <mliska@suse.cz>

        PR c++/68312
        * c-array-notation.c (fix_builtin_array_notation_fn):
        Use release_vec_vec instead of vec::release.
        (build_array_notation_expr): Likewise.
        (fix_conditional_array_notations_1): Likewise.
        (fix_array_notation_expr): Likewise.
        (fix_array_notation_call_expr): Likewise.

2015-11-27  Jakub Jelinek  <jakub@redhat.com>

        PR c/63326
        * c-parser.c (c_parser_compound_statement_nostart): If
        last_label is true, use pragma_stmt instead of pragma_compound
        as second c_parser_pragma argument.
        (c_parser_omp_ordered, c_parser_omp_target_update,
        c_parser_omp_target_enter_data, c_parser_omp_target_exit_data): Pass
        false as second argument to c_parser_skip_to_pragma_eol after
        diagnosing standalone directives used in pragma_stmt context.

2015-11-24  Ilya Verbin  <ilya.verbin@intel.com>

        * c-parser.c (c_parser_oacc_declare): Replace "ifdef ENABLE_OFFLOADING"
        with "if (ENABLE_OFFLOADING)".

2015-11-23  David Malcolm  <dmalcolm@redhat.com>

        PR objc/68438
        * c-parser.c (c_parser_postfix_expression): Set up source ranges
        for various Objective-C constructs: Class.name syntax,
        @selector(), @protocol(), @encode(), and [] message syntax.

2015-11-20  David Malcolm  <dmalcolm@redhat.com>

        PR 62314
        * c-typeck.c (should_suggest_deref_p): New function.
        (build_component_ref): Special-case POINTER_TYPE when
        generating a "not a structure of union"  error message, and
        suggest a "->" rather than a ".", providing a fix-it hint.

2015-11-19  David Malcolm  <dmalcolm@redhat.com>

        * c-typeck.c (lookup_field_fuzzy): Move determination of closest
        candidate into a new function, find_closest_identifier.

2015-11-19  Marek Polacek  <polacek@redhat.com>

        PR c/68412
        * c-typeck.c (parser_build_binary_op): Properly handle
        C_MAYBE_CONST_EXPR before calling warn_tautological_cmp.

2015-11-17  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (set_c_expr_source_range): Bulletproof both
        overloaded implementations against NULL expr->value.
        (c_parser_braced_init): Set src_range for "ret" to a sane pair of
        values.
        (c_parser_unary_expression): Likewise when handling addresses of
        labels.
        (c_parser_postfix_expression): Likewise for statement expressions,
        for __FUNCTION__, __PRETTY_FUNCTION_ and __func__ keywords, for
        __builtin_va_arg, and for __builtin_offset_of.
        (c_parser_postfix_expression_after_paren_type): Initialize expr's
        src_range using the range of the braced initializer.
        (c_parser_transaction_expression): Set src_range for "ret" to a
        sane pair of values.

2015-11-16  Kirill Yukhin  <kirill.yukhin@intel.com>

        * c-parser.c (c_finish_omp_declare_simd): Look for
        "simd" attribute as well. Update error message.

2015-11-14  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * c-parser.c (c_parser_omp_declare_target): Adjust.

2015-11-14  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (c_finish_omp_clauses): Don't mark
        GOMP_MAP_FIRSTPRIVATE_POINTER decls addressable.

2015-11-14  Marek Polacek  <polacek@redhat.com>

        * c-decl.c: Use RECORD_OR_UNION_TYPE_P throughout.
        * c-typeck.c: Likewise.

2015-11-13  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.c (warn_defaults_to): Pass line_table to
        rich_location ctor.
        * c-errors.c (pedwarn_c99): Likewise.
        (pedwarn_c90): Likewise.
        * c-parser.c (set_c_expr_source_range): New functions.
        (c_token::get_range): New method.
        (c_token::get_finish): New method.
        (c_parser_expr_no_commas): Call set_c_expr_source_range on the ret
        based on the range from the start of the LHS to the end of the
        RHS.
        (c_parser_conditional_expression): Likewise, based on the range
        from the start of the cond.value to the end of exp2.value.
        (c_parser_binary_expression): Call set_c_expr_source_range on
        the stack values for TRUTH_ANDIF_EXPR and TRUTH_ORIF_EXPR.
        (c_parser_cast_expression): Call set_c_expr_source_range on ret
        based on the cast_loc through to the end of the expr.
        (c_parser_unary_expression): Likewise, based on the
        op_loc through to the end of op.
        (c_parser_sizeof_expression) Likewise, based on the start of the
        sizeof token through to either the closing paren or the end of
        expr.
        (c_parser_postfix_expression): Likewise, using the token range,
        or from the open paren through to the close paren for
        parenthesized expressions.
        (c_parser_postfix_expression_after_primary): Likewise, for
        various kinds of expression.
        * c-tree.h (struct c_expr): Add field "src_range".
        (c_expr::get_start): New method.
        (c_expr::get_finish): New method.
        (set_c_expr_source_range): New decls.
        * c-typeck.c (parser_build_unary_op): Call set_c_expr_source_range
        on ret for prefix unary ops.
        (parser_build_binary_op): Likewise, running from the start of
        arg1.value through to the end of arg2.value.

2015-11-13  Marek Polacek  <polacek@redhat.com>

        PR c/68320
        * c-parser.c (c_parser_for_statement): Treat unknown tokens as IDs.

2015-11-13  David Malcolm  <dmalcolm@redhat.com>

        * c-typeck.c: Include spellcheck.h.
        (lookup_field_fuzzy_find_candidates): New function.
        (lookup_field_fuzzy): New function.
        (build_component_ref): If the field was not found, try using
        lookup_field_fuzzy and potentially offer a suggestion.

2015-11-12  James Norris  <jnorris@codesourcery.com>
            Joseph Myers  <joseph@codesourcery.com>

        * c-parser.c (c_parser_pragma): Handle PRAGMA_OACC_DECLARE.
        (c_parser_omp_clause_name): Handle 'device_resident' clause.
        (c_parser_oacc_data_clause): Handle PRAGMA_OACC_CLAUSE_DEVICE_RESIDENT
        and PRAGMA_OMP_CLAUSE_LINK.
        (c_parser_oacc_all_clauses): Handle PRAGMA_OACC_CLAUSE_DEVICE_RESIDENT
        and PRAGMA_OACC_CLAUSE_LINK.
        (OACC_DECLARE_CLAUSE_MASK): New definition.
        (c_parser_oacc_declare): New function.

2015-11-12  Marek Polacek  <polacek@redhat.com>

        PR c/67784
        * c-parser.c (c_parser_for_statement): Reclassify the token in
        a correct scope.

2015-11-11  Marek Polacek  <polacek@redhat.com>

        PR c/68107
        PR c++/68266
        * c-decl.c (grokdeclarator): Call valid_array_size_p.  Remove code
        checking the size of an array.

2015-11-11  Andrew MacLeod  <amacleod@redhat.com>

        * c-array-notation.c: Remove unused header files.
        * c-aux-info.c: Likewise.
        * c-convert.c: Likewise.
        * c-decl.c: Likewise.
        * c-errors.c: Likewise.
        * c-lang.c: Likewise.
        * c-objc-common.c: Likewise.
        * c-parser.c: Likewise.
        * c-typeck.c: Likewise.
        * gccspec.c: Likewise.

2015-11-09  Thomas Schwinge  <thomas@codesourcery.com>
            Cesar Philippidis  <cesar@codesourcery.com>
            James Norris  <jnorris@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>

        * c-parser.c (c_parser_declaration_or_fndef): Add OpenACC
        routine arg.
        (c_parser_declaration_or_fndef): Call c_finish_oacc_routine.
        (c_parser_pragma): Parse 'acc routine'.
        (OACC_ROUTINE_CLAUSE_MARK): Define.
        (c_parser_oacc_routine, (c_finish_oacc_routine): New.

2015-11-09  Andreas Arnez  <arnez@linux.vnet.ibm.com>

        PR debug/67192
        * c-typeck.c (c_finish_loop): For unconditional loops, set the
        location of the backward-goto to the start of the loop body.

2015-11-09  Andreas Arnez  <arnez@linux.vnet.ibm.com>

        PR debug/67192
        * c-parser.c (c_parser_while_statement): Finish the loop before
        parsing ahead for misleading indentation.
        (c_parser_for_statement): Likewise.

2015-11-08  Eric Botcazou  <ebotcazou@adacore.com>

        * c-decl.c (finish_struct): If the structure has reverse storage
        order, rewrite the type of array fields with scalar component.  Call
        maybe_apply_pragma_scalar_storage_order on entry.
        * c-typeck.c (build_unary_op) <ADDR_EXPR>: Remove left-overs.  Issue
        errors on bit-fields and reverse SSO here and not...
        (c_mark_addressable): ...here.
        (output_init_element): Adjust call to initializer_constant_valid_p.
        (c_build_qualified_type): Propagate TYPE_REVERSE_STORAGE_ORDER.

2015-11-06  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.c (warn_defaults_to): Update for change in signature
        of diagnostic_set_info.
        * c-errors.c (pedwarn_c99): Likewise.
        (pedwarn_c90): Likewise.
        * c-objc-common.c (c_tree_printer): Update for new "caret_p" param
        for textinfo::set_location.

2015-11-05  Cesar Philippidis  <cesar@codesourcery.com>
            Thomas Schwinge  <thomas@codesourcery.com>
            James Norris  <jnorris@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_name): Add support for
        PRAGMA_OACC_CLAUSE_INDEPENDENT and PRAGMA_OACC_CLAUSE_TILE.
        (c_parser_omp_clause_default): Add is_oacc argument. Handle
        default(none) in OpenACC.
        (c_parser_oacc_shape_clause): Allow pointer variables as gang static
        arguments.
        (c_parser_oacc_clause_tile): New function.
        (c_parser_oacc_all_clauses): Add support for OMP_CLAUSE_DEFAULT,
        OMP_CLAUSE_INDEPENDENT and OMP_CLAUSE_TILE.
        (OACC_LOOP_CLAUSE_MASK): Add PRAGMA_OACC_CLAUSE_{PRIVATE,INDEPENDENT,
        TILE}.
        (OACC_KERNELS_MASK): Add PRAGMA_OACC_CLAUSE_DEFAULT.
        (OACC_PARALLEL_MASK): Add PRAGMA_OACC_CLAUSE_{DEFAULT,PRIVATE,
        FIRSTPRIVATE}.
        (c_parser_omp_all_clauses): Update call to c_parser_omp_clause_default.
        (c_parser_oacc_update): Update the error message for missing clauses.
        * c-typeck.c (c_finish_omp_clauses): Add support for OMP_CLAUSE_TILE
        and OMP_CLAUSE_INDEPENDENT.

2015-11-05  Marek Polacek  <polacek@redhat.com>

        PR c/68090
        * c-parser.c (c_parser_postfix_expression_after_paren_type): Don't
        deal with pre-evaluation on invalid types.

2015-11-05  Jakub Jelinek  <jakub@redhat.com>
            Ilya Verbin  <ilya.verbin@intel.com>

        * c-parser.c: Include context.h and gimple-expr.h.
        (c_parser_omp_clause_schedule): Parse schedule modifiers, diagnose
        monotonic together with nonmonotonic.
        (c_parser_omp_for_loop): Call c_omp_check_loop_iv.  Call add_stmt here.
        (OMP_DISTRIBUTE_CLAUSE_MASK): Add lastprivate clause.
        (c_parser_omp_target_data, c_parser_omp_target_enter_data,
        c_parser_omp_target_exit_data): Allow GOMP_MAP_ALWAYS_POINTER.
        (c_parser_omp_target): Likewise.  Evaluate num_teams and thread_limit
        expressions on combined target teams before the target.
        (c_parser_omp_declare_target): If decl has "omp declare target" or
        "omp declare target link" attribute, and cgraph or varpool node already
        exists, then set corresponding flags.  Call c_finish_omp_clauses
        in the parenthesized extended-list syntax case.
        * c-decl.c (c_decl_attributes): Don't diagnose block scope vars inside
        declare target.
        * c-typeck.c (handle_omp_array_sections_1): Allow non-zero low-bound
        on OMP_CLAUSE_REDUCTION array sections.
        (handle_omp_array_sections): Encode low-bound into the MEM_REF, either
        into the constant offset, or for variable low-bound using
        POINTER_PLUS_EXPR.  For structure element based array sections use
        GOMP_MAP_ALWAYS_POINTER instead of GOMP_MAP_FIRSTPRIVATE_POINTER.
        (c_finish_omp_clauses): Drop generic_field_head, structure
        elements are now always mapped even as array section bases,
        diagnose same var in data sharing and mapping clauses.  Diagnose if
        linear step on declare simd is neither a constant nor a uniform
        parameter.  Look through POINTER_PLUS_EXPR for array section
        reductions.  Diagnose the same var or function appearing multiple
        times on the same directive.  Fix up wording for the to clause if t
        is neither a FUNCTION_DECL nor a VAR_DECL.  Diagnose nonmonotonic
        modifier on kinds other than dynamic or guided or nonmonotonic
        modifier together with ordered clause.

2015-11-03  Thomas Schwinge  <thomas@codesourcery.com>
            Chung-Lin Tang  <cltang@codesourcery.com>

        * c-parser.c (c_parser_omp_construct): Handle PRAGMA_OACC_ATOMIC.

2015-10-29  Andrew MacLeod  <amacleod@redhat.com>

        * c-array-notation.c: Reorder #include's and remove duplicates.
        * c-aux-info.c: Likewise.
        * c-convert.c: Likewise.
        * c-decl.c: Likewise.
        * c-errors.c: Likewise.
        * c-lang.c: Likewise.
        * c-objc-common.c: Likewise.
        * c-parser.c: Likewise.
        * c-typeck.c: Likewise.

2015-10-26  Jim Wilson  <jim.wilson@linaro.org>

        PR debug/66068
        * c-typeck.c (c_build_qualified_type): Clear C_TYPE_INCOMPLETE_VARS
        after calling build_qualified_type.

2015-10-27  Cesar Philippidis  <cesar@codesourcery.com>
            Thomas Schwinge  <thomas@codesourcery.com>
            James Norris  <jnorris@codesourcery.com>
            Joseph Myers  <joseph@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>
            Bernd Schmidt  <bschmidt@redhat.com>

        * c-parser.c (c_parser_oacc_shape_clause): New.
        (c_parser_oacc_simple_clause): New.
        (c_parser_oacc_all_clauses): Add auto, gang, seq, vector, worker.
        (OACC_LOOP_CLAUSE_MASK): Add gang, worker, vector, auto, seq.

2015-10-27  Thomas Schwinge  <thomas@codesourcery.com>
            James Norris  <jnorris@codesourcery.com>
            Cesar Philippidis  <cesar@codesourcery.com>

        PR c/64765
        PR c/64880
        * c-parser.c (c_parser_oacc_loop): Add mask, cclauses formal
        parameters, and handle these.  Adjust all users.
        (c_parser_oacc_kernels, c_parser_oacc_parallel): Merge functions
        into...
        (c_parser_oacc_kernels_parallel): ... this new function.  Adjust
        all users.
        * c-tree.h (c_finish_oacc_parallel, c_finish_oacc_kernels): Don't
        declare functions.
        (c_finish_omp_construct): Declare function.
        * c-typeck.c (c_finish_oacc_parallel, c_finish_oacc_kernels):
        Merge functions into...
        (c_finish_omp_construct): ... this new function.

2015-10-22  Richard Biener  <rguenther@suse.de>

        * c-typeck.c (c_finish_omp_clauses): Properly convert operands
        before folding a MINUS_EXPR.

2015-10-21  Marek Polacek  <polacek@redhat.com>

        PR c/68024
        * c-decl.c (start_function): Warn about vararg functions without
        a prototype.

2015-10-21  Ilya Enkovich  <enkovich.gnu@gmail.com>

        * c-typeck.c (build_conditional_expr): Use boolean vector
        type for vector comparison.
        (build_vec_cmp): New.
        (build_binary_op): Use build_vec_cmp for comparison.

2015-10-20  Marek Polacek  <polacek@redhat.com>

        * c-parser.c (is_cilkplus_vector_p): Don't define here.

2015-10-20  Marek Polacek  <polacek@redhat.com>

        PR c/67964
        * c-parser.c (c_parser_attributes): Break out of the loop if the
        token after an attribute isn't a comma.

2015-10-13  Jakub Jelinek  <jakub@redhat.com>
            Aldy Hernandez  <aldyh@redhat.com>

        * c-parser.c (c_parser_pragma): Handle PRAGMA_OMP_ORDERED here.
        (c_parser_omp_clause_name): Handle OpenMP 4.5 clauses.
        (c_parser_omp_variable_list): Handle structure elements for
        map, to and from clauses.  Handle array sections in reduction
        clause.  Formatting fixes.
        (c_parser_omp_clause_if): Add IS_OMP argument, handle parsing of
        if clause modifiers.
        (c_parser_omp_clause_num_tasks, c_parser_omp_clause_grainsize,
        c_parser_omp_clause_priority, c_parser_omp_clause_hint,
        c_parser_omp_clause_defaultmap, c_parser_omp_clause_use_device_ptr,
        c_parser_omp_clause_is_device_ptr): New functions.
        (c_parser_omp_clause_ordered): Parse optional parameter.
        (c_parser_omp_clause_reduction): Handle array reductions.
        (c_parser_omp_clause_schedule): Parse optional simd modifier.
        (c_parser_omp_clause_nogroup, c_parser_omp_clause_orderedkind): New
        functions.
        (c_parser_omp_clause_linear): Parse linear clause modifiers.
        (c_parser_omp_clause_depend_sink): New function.
        (c_parser_omp_clause_depend): Parse source/sink depend kinds.
        (c_parser_omp_clause_map): Parse release/delete map kinds and
        optional always modifier.
        (c_parser_oacc_all_clauses): Adjust c_parser_omp_clause_if
        and c_finish_omp_clauses callers.
        (c_parser_omp_all_clauses): Likewise.  Parse OpenMP 4.5 clauses.
        Parse "to" as OMP_CLAUSE_TO_DECLARE if on declare target directive.
        (c_parser_oacc_cache): Adjust c_finish_omp_clauses caller.
        (OMP_CRITICAL_CLAUSE_MASK): Define.
        (c_parser_omp_critical): Parse critical clauses.
        (c_parser_omp_for_loop): Handle doacross loops, adjust
        c_finish_omp_for and c_finish_omp_clauses callers.
        (OMP_SIMD_CLAUSE_MASK): Add simdlen clause.
        (c_parser_omp_simd): Allow ordered clause if it has no parameter.
        (OMP_FOR_CLAUSE_MASK): Add linear clause.
        (c_parser_omp_for): Disallow ordered clause when combined with
        distribute.  Disallow linear clause when combined with distribute
        and not combined with simd.
        (OMP_ORDERED_CLAUSE_MASK, OMP_ORDERED_DEPEND_CLAUSE_MASK): Define.
        (c_parser_omp_ordered): Add CONTEXT argument, remove LOC argument,
        parse clauses and if depend clause is found, don't parse a body.
        (c_parser_omp_parallel): Disallow copyin clause on target parallel.
        Allow target parallel without for after it.
        (OMP_TASK_CLAUSE_MASK): Add priority clause.
        (OMP_TARGET_DATA_CLAUSE_MASK): Add use_device_ptr clause.
        (c_parser_omp_target_data): Diagnose no map clauses or clauses with
        invalid kinds.
        (OMP_TARGET_UPDATE_CLAUSE_MASK): Add depend and nowait clauses.
        (OMP_TARGET_ENTER_DATA_CLAUSE_MASK,
        OMP_TARGET_EXIT_DATA_CLAUSE_MASK): Define.
        (c_parser_omp_target_enter_data, c_parser_omp_target_exit_data): New
        functions.
        (OMP_TARGET_CLAUSE_MASK): Add depend, nowait, private, firstprivate,
        defaultmap and is_device_ptr clauses.
        (c_parser_omp_target): Parse target parallel and target simd.  Set
        OMP_TARGET_COMBINED on combined constructs.  Parse target enter data
        and target exit data.  Diagnose invalid map kinds.
        (OMP_DECLARE_TARGET_CLAUSE_MASK): Define.
        (c_parser_omp_declare_target): Parse OpenMP 4.5 forms of this
        construct.
        (c_parser_omp_declare_reduction): Use STRIP_NOPS when checking for
        &omp_priv.
        (OMP_TASKLOOP_CLAUSE_MASK): Define.
        (c_parser_omp_taskloop): New function.
        (c_parser_omp_construct): Don't handle PRAGMA_OMP_ORDERED here,
        handle PRAGMA_OMP_TASKLOOP.
        (c_parser_cilk_for): Adjust c_finish_omp_clauses callers.
        * c-tree.h (c_finish_omp_clauses): Add two new arguments.
        * c-typeck.c (handle_omp_array_sections_1): Fix comment typo.
        Add IS_OMP argument, handle structure element bases, diagnose
        bitfields, pass IS_OMP recursively, diagnose known zero length
        array sections in depend clauses, handle array sections in reduction
        clause, diagnose negative length even for pointers.
        (handle_omp_array_sections): Add IS_OMP argument, use auto_vec for
        types, pass IS_OMP down to handle_omp_array_sections_1, handle
        array sections in reduction clause, set
        OMP_CLAUSE_MAP_MAYBE_ZERO_LENGTH_ARRAY_SECTION if map could be zero
        length array section, use GOMP_MAP_FIRSTPRIVATE_POINTER for IS_OMP.
        (c_finish_omp_clauses): Add IS_OMP and DECLARE_SIMD arguments.
        Handle new OpenMP 4.5 clauses and new restrictions for the old ones.

2015-10-06  Marek Polacek  <polacek@redhat.com>

        * c-parser.c (c_parser_statement_after_labels): Use
        protected_set_expr_location.
        (c_parser_omp_clause_num_gangs): Likewise.
        (c_parser_omp_clause_num_threads): Likewise.
        (c_parser_omp_clause_num_workers): Likewise.
        (c_parser_omp_clause_vector_length): Likewise.
        (c_parser_omp_clause_num_teams): Likewise.
        (c_parser_omp_clause_thread_limit): Likewise.
        * c-typeck.c (build_c_cast): Likewise.
        (c_cast_expr): Likewise.

2015-10-05  Richard Sandiford  <richard.sandiford@arm.com>

        * c-typeck.c (c_tree_equal): Use real_equal instead of
        REAL_VALUES_EQUAL.

2015-10-04  Jason Merrill  <jason@redhat.com>

        * c-parser.c (c_lex_one_token): Handle @synchronized.
        * c-decl.c (match_builtin_function_types): A declaration of a built-in
        can change whether the function is transaction_safe.

2015-10-02  Marek Polacek  <polacek@redhat.com>

        PR c/67730
        * c-typeck.c (convert_for_assignment): Use the expansion point
        location throughout.

2015-10-02  Marek Polacek  <polacek@redhat.com>

        PR c/64249
        * c-parser.c (c_parser_statement_after_labels): Add CHAIN parameter
        and pass it down to c_parser_if_statement.
        (c_parser_else_body): Add CHAIN parameter and pass it down to
        c_parser_statement_after_labels.
        (c_parser_if_statement): Add CHAIN parameter.  Add code to warn about
        duplicated if-else-if conditions.

2015-10-01  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c (convert_for_assignment): Improve commentary.

2015-09-30  Marek Polacek  <polacek@redhat.com>

        PR c/67730
        * c-typeck.c (c_finish_return): Use the expansion point location for
        certain "return with value" warnings.

2015-09-18  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * c-parser.c (pragma_lex): Add loc argument.

2015-09-15  Marek Polacek  <polacek@redhat.com>

        PR c/67580
        * c-decl.c (tag_exists_p): New function.
        * c-parser.c (c_parser_declaration_or_fndef): Give a hint when
        struct/union/enum keywords are missing.
        * c-tree.h (tag_exists_p): Declare.

2015-09-15  Marek Polacek  <polacek@redhat.com>

        * c-decl.c (lookup_label): Return NULL_TREE instead of 0.
        (lookup_tag): Change the type of THISLEVEL_ONLY to bool.
        Return NULL_TREE instead of 0.
        (lookup_name): Return NULL_TREE instead of 0.
        (lookup_name_in_scope): Likewise.
        (shadow_tag_warned): Use true instead of 1 and NULL_TREE instead of 0.
        (parser_xref_tag): Use false instead of 0.
        (start_struct): Use true instead of 1.
        (start_enum): Use true instead of 1 and NULL_TREE instead of 0.

2015-09-14  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c (set_nonincremental_init_from_string): Use
        HOST_WIDE_INT_M1U when shifting a negative value.

2015-09-09  Mark Wielaard  <mjw@redhat.com>

        * c-typeck.c (build_binary_op): Check and warn when nonnull arg
        parm against NULL.

2015-09-10  Jakub Jelinek  <jakub@redhat.com>

        PR c/67502
        * c-parser.c (c_parser_omp_for_loop): Emit DECL_EXPR stmts
        into OMP_FOR_PRE_BODY rather than before the loop.

2015-09-09  Jakub Jelinek  <jakub@redhat.com>

        PR c/67501
        * c-parser.c (c_parser_oacc_all_clauses,
        c_parser_omp_all_clauses): Remove invalid clause from
        list of clauses even if parser->error is set.

        PR c/67500
        * c-parser.c (c_parser_omp_clause_aligned,
        c_parser_omp_clause_safelen, c_parser_omp_clause_simdlen): Fix up
        test for errors.
        * c-decl.c (temp_pop_parm_decls): Allow b->decl equal to
        error_mark_node.

        PR c/67495
        * c-parser.c (c_parser_omp_atomic): Use c_parser_cast_expression
        instead of c_parser_unary_expression.  If the result is !lvalue_p,
        wrap the result of c_fully_fold into NON_LVALUE_EXPR.

2015-09-04  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/67279
        * c-typeck.c (build_binary_op): Don't instrument static initializers.

2015-09-03  Martin Sebor  <msebor@redhat.com>

        PR c/66516
        * c-typeck.c (convert_arguments, parser_build_unary_op,
        build_conditional_expr, c_cast_expr, convert_for_assignment,
        build_binary_op, _objc_common_truthvalue_conversion): Call
        reject_gcc_builtin.
        (c_decl_implicit): Define.

2015-09-02  Marek Polacek  <polacek@redhat.com>

        PR c/67432
        * c-parser.c (c_parser_enum_specifier): Give a better error for
        an empty enum.

2015-08-18  Trevor Saunders  <tbsaunde@tbsaunde.org>

        * c-aux-info.c, c-parser.c, c-tree.h: Remove useless typedefs.

2015-08-12  Marek Polacek  <polacek@redhat.com>

        * c-decl.c (grokdeclarator): Call error_at instead of error and pass
        LOC to it.

2015-08-03  Marek Polacek  <polacek@redhat.com>

        PR c/67088
        * c-decl.c (check_bitfield_type_and_width): Add location parameter.
        Use it.
        (grokdeclarator): Pass LOC down to check_bitfield_type_and_width.

2015-08-02  Patrick Palka  <ppalka@gcc.gnu.org>

        * c-parser.c (c_parser_if_body): Take token_indent_info
        argument. Call warn_for_misleading_indentation even when the
        body is a semicolon.  Extract token_indent_infos corresponding
        to the guard, body and next tokens.  Adjust call to
        warn_for_misleading_indentation accordingly.
        (c_parser_else_body): Likewise.
        (c_parser_if_statement): Likewise.
        (c_parser_while_statement): Likewise.
        (c_parser_for_statement): Likewise.

2015-07-28  Luis Felipe Strano Moraes  <luis.strano@gmail.com>
            Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * c-decl.c (get_parm_info): Remove static var. Update warning
        message.

2015-07-27  Marek Polacek  <polacek@redhat.com>

        PR c++/66555
        PR c/54979
        * c-typeck.c (parser_build_binary_op): Call warn_tautological_cmp.

2015-07-20  Marek Polacek  <polacek@redhat.com>

        PR c++/55095
        * c-typeck.c (digest_init): Pass OPT_Wpedantic to pedwarn_init.
        (build_binary_op): Warn about left shift overflows.

2015-07-09  Andrew MacLeod  <amacleod@redhat.com>

        * c-array-notation.c: Adjust includes for flags.h changes.
        * c-objc-common.c: Likewise.

2015-07-07  Andrew MacLeod  <amacleod@redhat.com>

        * c-array-notation.c: Adjust includes.
        * c-aux-info.c: Likewise.
        * c-convert.c: Likewise.
        * c-decl.c: Likewise.
        * c-errors.c: Likewise.
        * c-lang.c: Likewise.
        * c-objc-common.c: Likewise.
        * c-parser.c: Likewise.
        * c-typeck.c: Likewise.

2015-06-29  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR fortran/66605
        * c-decl.c (finish_function): Call do_warn_unused_parameter.

2015-06-29  Marek Polacek  <polacek@redhat.com>

        PR c/66322
        * c-typeck.c (struct c_switch): Add BOOL_COND_P and OUTSIDE_RANGE_P.
        (c_start_case): Set BOOL_COND_P and OUTSIDE_RANGE_P.  Don't warn
        about -Wswitch-bool here.
        (do_case): Update c_add_case_label call.
        (c_finish_case): Update c_do_switch_warnings call.

2015-06-27  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c: Use VECTOR_TYPE_P throughout.

2015-06-26  Marek Polacek  <polacek@redhat.com>

        * c-array-notation.c (fix_builtin_array_notation_fn): Use
        INDIRECT_REF_P.
        * c-typeck.c (array_to_pointer_conversion): Likewise.
        (build_unary_op): Likewise.
        (c_finish_return): Likewise.

2015-06-25  Andrew MacLeod  <amacleod@redhat.com>

        * c-decl.c: Remove ipa-ref.h and plugin-api.h from include list.
        * c-parser.c: Likewise.

2015-06-25  Richard Sandiford  <richard.sandiford@arm.com>

        * c-decl.c (detect_field_duplicates_hash): Use nofree_ptr_hash
        instead of pointer_hash.
        (detect_field_duplicates): Likewise.

2015-06-25  Marek Polacek  <polacek@redhat.com>

        * c-array-notation.c: Use VAR_P throughout.
        * c-decl.c: Likewise.
        * c-objc-common.c: Likewise.
        * c-parser.c: Likewise.
        * c-typeck.c: Likewise.

2015-06-25  Marek Polacek  <polacek@redhat.com>

        * c-decl.c: Use is_global_var throughout.
        * c-parser.c: Likewise.
        * c-typeck.c: Likewise.

2015-06-17  Andrew MacLeod  <amacleod@redhat.com>

        * c-array-notation.c: Do not include input.h, line-map.h or is-a.h.
        * c-aux-info.c: Likewise.
        * c-convert.c: Likewise.
        * c-decl.c: Likewise.
        * c-errors.c: Likewise.
        * c-lang.c: Likewise.
        * c-objc-common.c: Likewise.
        * c-parser.c: Likewise.
        * c-typeck.c: Likewise.

2015-06-11  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/66325
        * c-decl.c (start_enum): Set TYPE_PACKED consistently among type
        variants.

2015-06-11  Pierre-Marie de Rodat  <derodat@adacore.com>

        * c-decl.c (pop_scope): Register the main translation unit
        through the new debug hook.

2015-06-08  Andrew MacLeod  <amacleod@redhat.com>

        * c-array-notation.c : Adjust include files.
        * c-aux-info.c : Likewise.
        * c-convert.c : Likewise.
        * c-decl.c : Likewise.
        * c-errors.c : Likewise.
        * c-lang.c : Likewise.
        * c-lang.h : Likewise.
        * c-objc-common.c : Likewise.
        * c-parser.c : Likewise.
        * c-typeck.c : Likewise.

2015-06-05  Aldy Hernandez  <aldyh@redhat.com>

        * c-decl.c (finish_struct): Save C_TYPE_INCOMPLETE_VARS and
        immediately clobber it.
        (c_write_global_declarations_1): Remove call to
        check_global_declaration_1.
        (c_write_global_declarations_2): Remove.
        (c_write_final_cleanups): Rename from c_write_global_declarations.
        Remove call to finalize_compilation_unit.
        Remove calls to debugging hooks.
        * c-objc-common.c: Adjust comment for c_warn_unused_global_decl.
        * c-objc-common.h: Remove LANG_HOOKS_WRITE_GLOBALS.
        * c-tree.h: Remove c_write_global_declarations.

2015-06-04  Andrew MacLeod  <amacleod@redhat.com>

        * c-array-notation.c: Adjust includes for restructured coretypes.h.
        * c-aux-info.c: Likewise.
        * c-convert.c: Likewise.
        * c-decl.c: Likewise.
        * c-errors.c: Likewise.
        * c-lang.c: Likewise.
        * c-objc-common.c: Likewise.
        * c-parser.c: Likewise.
        * c-typeck.c: Likewise.

2015-06-04  Marek Polacek  <polacek@redhat.com>

        PR c/66341
        * c-typeck.c (build_c_cast): Wrap VALUE into NON_LVALUE_EXPR if
        it is a lvalue.

2015-06-03  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * c-decl.c (warn_cxx_compat_finish_struct): New parameters code, record_loc.
        Warn for empty struct.
        (finish_struct): Pass TREE_CODE(t) and loc to warn_cxx_compat_finish_struct.

2015-06-02  Andres Tiraboschi  <andres.tiraboschi@tallertechnologies.com>

        * c-decl.c (start_function): Call plugin before parsing.
        (finish_function): Call plugin after parsing.

2015-06-02  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR c/49551
        * c-decl.c (merge_decls): Merge DECL_COMMON.

2015-05-22  Jim Wilson  <jim.wilson@linaro.org>

        * Make-lang.in (check_gcc_pallelize): Define.

2015-05-22  Marek Polacek  <polacek@redhat.com>

        PR c/47043
        * c-parser.c (c_parser_enum_specifier): Parse and apply enumerator
        attributes.

2015-05-21  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c (inform_declaration): Use DECL_IS_BUILTIN instead of
        DECL_BUILT_IN.

2015-05-20  Marek Polacek  <polacek@redhat.com>

        * c-decl.c: Use VAR_OR_FUNCTION_DECL_P throughout.
        * c-typeck.c: Likewise.

2015-05-19  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c (start_init): Use AGGREGATE_TYPE_P.

2015-05-19  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/66199
        * c-parser.c (c_parser_omp_for_loop): Don't add
        OMP_CLAUSE_SHARED to OMP_PARALLEL_CLAUSES when moving
        OMP_CLAUSE_LASTPRIVATE clause to OMP_FOR_CLAUSES.
        (c_parser_omp_teams): Set OMP_TEAMS_COMBINED for combined
        constructs.

2015-05-19  Mikhail Maltsev  <maltsevm@gmail.com>

        * c-typeck.c (build_array_ref): Use std::swap instead of explicit
        swaps.

2015-05-16  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR fortran/44054
        * c-objc-common.c (c_tree_printer): Replace locus pointer with
        accessor function.

2015-05-14  Marek Polacek  <polacek@redhat.com>

        PR c/66066
        PR c/66127
        * c-typeck.c (digest_init): Call pedwarn_init with OPT_Wpedantic
        rather than with 0.

2015-05-12  David Malcolm  <dmalcolm@redhat.com>

        * c-parser.c (c_parser_if_body): Add param "if_loc", use it
        to add a call to warn_for_misleading_indentation.
        (c_parser_else_body): Likewise, adding param "else_loc".
        (c_parser_if_statement): Check for misleading indentation.
        (c_parser_while_statement): Likewise.
        (c_parser_for_statement): Likewise.

2015-05-08  Marek Polacek  <polacek@redhat.com>

        PR c/64918
        * c-typeck.c (add_pending_init): Use OPT_Woverride_init_side_effects.
        (output_init_element): Likewise.

2015-05-07  Marek Polacek  <polacek@redhat.com>

        PR c/65179
        * c-typeck.c (build_binary_op): Warn when left shifting a negative
        value.

2015-04-30  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c (set_init_label): Call error_at instead of error and
        pass LOC to it.

        * c-typeck.c (c_incomplete_type_error): Refactor to use %qT.  Print
        the type of a decl.

        * c-typeck.c (c_build_va_arg): Clarify the error message.

2015-04-29  Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.c (c_parser_oacc_enter_exit_data): Use
        OMP_STANDALONE_CLAUSES.

2015-04-28  Marek Polacek  <polacek@redhat.com>

        * c-parser.c (c_parser_binary_expression): Remove duplicate line.

2015-04-28  Marek Polacek  <polacek@redhat.com>

        PR c/65901
        * c-typeck.c (c_build_va_arg): Require TYPE be a complete type.

2015-04-25  Marek Polacek  <polacek@redhat.com>

        PR c/52085
        * c-decl.c (finish_enum): Copy over TYPE_ALIGN.  Also check for "mode"
        attribute.

2015-04-23  Marek Polacek  <polacek@redhat.com>

        PR c/65345
        * c-decl.c (set_labels_context_r): New function.
        (store_parm_decls): Call it via walk_tree_without_duplicates.
        * c-typeck.c (convert_lvalue_to_rvalue): Use create_tmp_var_raw
        instead of create_tmp_var.  Build TARGET_EXPR instead of
        COMPOUND_EXPR.
        (build_atomic_assign): Use create_tmp_var_raw instead of
        create_tmp_var.  Build TARGET_EXPRs instead of MODIFY_EXPR.

2015-04-20  Ilya Verbin  <ilya.verbin@intel.com>

        * c-parser.c (c_parser_oacc_enter_exit_data): Remove excess semicolon.
        (c_parser_omp_target_update): Add missed %> to error_at ().

2015-04-10  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        PR target/55143
        * c-decl.c (c_default_pointer_mode): Remove definition.
        * c-tree.h (c_default_pointer_mode): Remove declaration.

2015-03-27  Tobias Burnus  <burnus@net-b.de>

        PR c/65586
        * c-parser.c (c_parser_skip_to_pragma_eol): Optionally, don't
        error out.
        (c_parser_omp_for, c_parser_omp_parallel, c_parser_omp_distribute,
        c_parser_omp_teams, c_parser_omp_target, c_parser_omp_declare):
        Update calls to not error for skipped omp pragmas with -fopenmp-simd.

2015-03-19  Jakub Jelinek  <jakub@redhat.com>

        * c-decl.c (c_decl_attributes): Also add "omp declare target"
        attribute for DECL_EXTERNAL VAR_DECLs.

2015-03-11  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parse_init): Don't call xstrdup on get_identifier
        argument.

2015-03-10  Jakub Jelinek  <jakub@redhat.com>

        PR c/65120
        * c-typeck.c (parser_build_binary_op): Check for tcc_comparison
        before preparing arguments to warn_logical_not_parentheses.

2015-03-09  Jakub Jelinek  <jakub@redhat.com>

        PR c/65120
        * c-typeck.c (parser_build_binary_op): Don't warn for
        !!x == y or !b == y where b is _Bool.

2015-03-09  Marek Polacek  <polacek@redhat.com>

        * c-convert.c (convert): Make use of do_ubsan_in_current_function.
        * c-decl.c (grokdeclarator): Likewise.
        * c-typeck.c (build_binary_op): Likewise.

2015-02-27  Marek Polacek  <polacek@redhat.com>

        PR c/65228
        * c-decl.c (start_decl): Return NULL_TREE if decl is an error node.

2015-02-14  Marek Polacek  <polacek@redhat.com>

        PR c/64768
        * c-decl.c (grokdeclarator): Set the range of a flexible array member
        declared through a typedef name.

2015-02-13  Marek Polacek  <polacek@redhat.com>

        PR c/65050
        * c-decl.c (grokdeclarator): Print also the type when giving
        the error message about array's incomplete element type.

2015-02-11  Jakub Jelinek  <jakub@redhat.com>

        PR c/64824
        * c-parser.c (c_parser_binary_expression): Fix OpenMP stack[sp].prec
        check in the POP macro.

2015-02-09  Marek Polacek  <polacek@redhat.com>

        PR c/64856
        * c-typeck.c (process_init_element): Don't always wrap
        COMPOUND_LITERAL_EXPR in a SAVE_EXPR in C99 mode when
        initializing a range of elements.

2015-02-04  Jakub Jelinek  <jakub@redhat.com>

        PR c/64824
        PR c/64868
        * c-parser.c (c_parser_omp_atomic): Handle RDIV_EXPR.

2015-02-02  Bruno Loff  <bruno.loff@gmail.com>

        * c-parser.c (c_parser_declspecs): Call invoke_plugin_callbacks after
        processing enum declaration.

2015-01-29  Marek Polacek  <polacek@redhat.com>

        PR c/64709
        * c-typeck.c (pop_init_level): If constructor_elements has
        exactly one element with integer_zerop value, set constructor_zeroinit
        to 1.  Remove braces around warning_init call.

2015-01-27  Jakub Jelinek  <jakub@redhat.com>

        PR c/64766
        * c-typeck.c (store_init_value): Don't overwrite DECL_INITIAL
        of FUNCTION_DECLs with error_mark_node.

2015-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR c/64778
        * c-typeck.c (convert_arguments): Return -1 if there are
        error_args, even if we've diagnosed too many arguments.

2015-01-21  Richard Biener  <rguenther@suse.de>

        PR middle-end/64313
        * c-decl.c (merge_decls): Call set_builtin_decl_declared_p
        for builtins the user declared correctly.

2015-01-15  Thomas Schwinge  <thomas@codesourcery.com>
            Bernd Schmidt  <bernds@codesourcery.com>
            Cesar Philippidis  <cesar@codesourcery.com>
            James Norris  <jnorris@codesourcery.com>
            Jakub Jelinek  <jakub@redhat.com>
            Ilmir Usmanov  <i.usmanov@samsung.com>

        * c-parser.c: Include "gomp-constants.h".
        (c_parser_omp_clause_map): Use enum gomp_map_kind instead of enum
        omp_clause_map_kind.  Use GOMP_MAP_* instead of OMP_CLAUSE_MAP_*.
        Use OMP_CLAUSE_SET_MAP_KIND.
        (c_parser_pragma): Handle PRAGMA_OACC_ENTER_DATA,
        PRAGMA_OACC_EXIT_DATA, PRAGMA_OACC_UPDATE.
        (c_parser_omp_construct): Handle PRAGMA_OACC_CACHE,
        PRAGMA_OACC_DATA, PRAGMA_OACC_KERNELS, PRAGMA_OACC_LOOP,
        PRAGMA_OACC_PARALLEL, PRAGMA_OACC_WAIT.
        (c_parser_omp_clause_name): Handle "auto", "async", "copy",
        "copyout", "create", "delete", "deviceptr", "gang", "host",
        "num_gangs", "num_workers", "present", "present_or_copy", "pcopy",
        "present_or_copyin", "pcopyin", "present_or_copyout", "pcopyout",
        "present_or_create", "pcreate", "seq", "self", "vector",
        "vector_length", "wait", "worker".
        (OACC_DATA_CLAUSE_MASK, OACC_KERNELS_CLAUSE_MASK)
        (OACC_ENTER_DATA_CLAUSE_MASK, OACC_EXIT_DATA_CLAUSE_MASK)
        (OACC_LOOP_CLAUSE_MASK, OACC_PARALLEL_CLAUSE_MASK)
        (OACC_UPDATE_CLAUSE_MASK, OACC_WAIT_CLAUSE_MASK): New macros.
        (c_parser_omp_variable_list): Handle OMP_CLAUSE__CACHE_.
        (c_parser_oacc_wait_list, c_parser_oacc_data_clause)
        (c_parser_oacc_data_clause_deviceptr)
        (c_parser_omp_clause_num_gangs, c_parser_omp_clause_num_workers)
        (c_parser_oacc_clause_async, c_parser_oacc_clause_wait)
        (c_parser_omp_clause_vector_length, c_parser_oacc_all_clauses)
        (c_parser_oacc_cache, c_parser_oacc_data, c_parser_oacc_kernels)
        (c_parser_oacc_enter_exit_data, c_parser_oacc_loop)
        (c_parser_oacc_parallel, c_parser_oacc_update)
        (c_parser_oacc_wait): New functions.
        * c-tree.h (c_finish_oacc_parallel, c_finish_oacc_kernels)
        (c_finish_oacc_data): New prototypes.
        * c-typeck.c: Include "gomp-constants.h".
        (handle_omp_array_sections): Handle GOMP_MAP_FORCE_DEVICEPTR.  Use
        GOMP_MAP_* instead of OMP_CLAUSE_MAP_*.  Use
        OMP_CLAUSE_SET_MAP_KIND.
        (c_finish_oacc_parallel, c_finish_oacc_kernels)
        (c_finish_oacc_data): New functions.
        (c_finish_omp_clauses): Handle OMP_CLAUSE__CACHE_,
        OMP_CLAUSE_NUM_GANGS, OMP_CLAUSE_NUM_WORKERS,
        OMP_CLAUSE_VECTOR_LENGTH, OMP_CLAUSE_ASYNC, OMP_CLAUSE_WAIT,
        OMP_CLAUSE_AUTO, OMP_CLAUSE_SEQ, OMP_CLAUSE_GANG,
        OMP_CLAUSE_WORKER, OMP_CLAUSE_VECTOR, and OMP_CLAUSE_MAP's
        GOMP_MAP_FORCE_DEVICEPTR.

2015-01-09  Michael Collison  <michael.collison@linaro.org>

        * c-array-notation.c: Include hash-set.h, machmode.h,
        vec.h, double-int.h, input.h, alias.h, symtab.h, options.h
        fold-const.h, wide-int.h, and inchash.h due to flattening of tree.h.
        * c-aux-info.c: Ditto.
        * c-convert.c: Ditto.
        * c-decl.c: Ditto.
        * c-errors.c: Ditto.
        * c-lang.c: Dittoxs.
        * c-objc-common.c: Ditto.
        * c-parser.c: Ditto.
        * c-typeck.c: Include hash-set.h, machmode.h,
        vec.h, double-int.h, input.h, alias.h, symtab.h, options.h
        fold-const.h, wide-int.h, inchash.h, real.h and
        fixed-value.h due to flattening of tree.h.

2015-01-07  Marek Polacek  <polacek@redhat.com>

        PR c/64417
        * c-typeck.c (process_init_element): Disallow initialization of
        a flexible array member with a string constant if the structure
        is in an array.

2015-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/64344
        * c-typeck.c (convert_for_assignment, c_finish_return): For
        -fsanitize=float-cast-overflow casts from REAL_TYPE to integer/enum
        types also set in_late_binary_op around convert call.
        * c-convert.c (convert): For -fsanitize=float-cast-overflow REAL_TYPE
        to integral type casts, if not in_late_binary_op, pass c_fully_fold
        result on expr as last argument to ubsan_instrument_float_cast,
        if in_late_binary_op, don't use c_save_expr but save_expr.

        Update copyright years.

2015-01-05  Marek Polacek  <polacek@redhat.com>

        PR c/64423
        * c-typeck.c (build_array_ref): Pass loc down to
        warn_array_subscript_with_type_char.

2014-12-20  Martin Uecker  <uecker@eecs.berkeley.edu>

        * c-typeck.c: New behavious for pointers to arrays with qualifiers
        (common-pointer-type): For pointers to arrays take qualifiers from
        element type.
        (build_conditional_expr): Add warnings for lost qualifiers.
        (comp-target-types): Allow pointers to arrays with different qualifiers.
        (convert-for-assignment): Adapt warnings for discarded qualifiers. Add
        WARNING_FOR_QUALIFIERS macro and rename WARN_FOR_QUALIFIERS
        to PEDWARN_FOR_QUALIFIERS.

2014-12-17  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/64289
        * c-convert.c: Include ubsan.h.
        (convert): For real -> integral casts and
        -fsanitize=float-cast-overflow don't call convert_to_integer, but
        instead instrument the float cast directly.

2014-11-29  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (convert_lvalue_to_rvalue, build_atomic_assign,
        c_finish_stmt_expr): Remove NULL last argument from
        create_tmp_var_raw and create_tmp_var calls.
        * c-array-notation.c (fix_builtin_array_notation_fn,
        build_array_notation_expr, fix_conditional_array_notations_1,
        fix_array_notation_expr, fix_array_notation_call_expr): Likewise.

2014-11-28  Marek Polacek  <polacek@redhat.com>

        PR c/63862
        * c-typeck.c (build_binary_op) <RSHIFT_EXPR, LSHIFT_EXPR>: Don't
        convert the right operand to integer type.

2014-11-25  Marek Polacek  <polacek@redhat.com>

        PR c/63877
        * c-decl.c (start_function): Disable -Wmissing-declarations warning
        for inline functions.

2014-11-21  Jakub Jelinek  <jakub@redhat.com>

        PR target/63764
        * c-typeck.c (build_array_ref): Adjust
        convert_vector_to_pointer_for_subscript caller.  If it returns true,
        call non_lvalue_loc on the result.

2014-11-11  Richard Biener  <rguenther@suse.de>

        * c-decl.c (c_init_decl_processing): Do not set pedantic_lvalues
        to true.

2014-11-10  Andi Kleen  <ak@linux.intel.com>

        PR c/60804
        * c-parser.c (c_parser_statement_after_labels): Call
        check_no_cilk.
        (c_parser_if_statement): Dito.
        (c_parser_switch_statement): Dito.
        (c_parser_while_statement): Dito.
        (c_parser_do_statement): Dito.
        (c_parser_for_statement): Dito.
        * c-typeck.c (c_finish_loop): Dito.

2014-11-10  Paolo Carlini  <paolo.carlini@oracle.com>

        * c-typeck.c (build_binary_op): Use OPT_Wshift_count_negative and
        OPT_Wshift_count_overflow in the warnings.

2014-10-30  Marek Polacek  <polacek@redhat.com>

        * c-objc-common.c (c_tree_printer) <case 'T'>: For a typedef name,
        print the stripped version as well, if they're not the same.

2014-10-29  Richard Sandiford  <richard.sandiford@arm.com>

        * c-decl.c, c-tree.h, c-typeck.c: Remove redundant enum from
        machine_mode.

2014-10-28  Andrew MacLeod  <amacleod@redhat.com>

        * c-decl.c: Adjust include files.
        * c-parser.c: Ditto.

2014-10-27  Phil Muldoon  <pmuldoon@redhat.com>
            Tom Tromey  <tromey@redhat.com>

        * c-tree.h (enum c_oracle_request): New.
        (c_binding_oracle_function): New typedef.
        (c_binding_oracle, c_pushtag, c_bind): Declare.
        * c-decl.c (c_binding_oracle): New global.
        (I_SYMBOL_CHECKED): New macro.
        (i_symbol_binding): New function.
        (I_SYMBOL_BINDING, I_SYMBOL_DECL): Redefine.
        (I_TAG_CHECKED): New macro.
        (i_tag_binding): New function.
        (I_TAG_BINDING, I_TAG_DECL): Redefine.
        (I_LABEL_CHECKED): New macro.
        (i_label_binding): New function.
        (I_LABEL_BINDING, I_LABEL_DECL): Redefine.
        (c_print_identifier): Save and restore c_binding_oracle.
        (c_pushtag, c_bind): New functions.

2014-10-27  Andrew MacLeod  <amacleod@redhat.com>

        * c-typeck.c: Adjust include files.

2014-10-26  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c++/53061
        * c-objc-common.c (c_objc_common_init): Do not do diagnostics
        initialization here...
        (c_initialize_diagnostics): ... but here. Set defaults after
        building pretty-printer.

2014-10-23  Marek Polacek  <polacek@redhat.com>

        PR c/63626
        * c-decl.c (pop_scope): Don't print warning in external_scope.

2014-10-19  Marek Polacek  <polacek@redhat.com>

        PR c/63567
        * c-typeck.c (output_init_element): Allow initializing objects with
        static storage duration with compound literals even in C99 and add
        pedwarn for it.

2014-10-17  Marek Polacek  <polacek@redhat.com>

        PR c/63567
        * c-typeck.c (digest_init): Allow initializing objects with static
        storage duration with compound literals even in C99 and add pedwarn
        for it.

2014-10-17  Marek Polacek  <polacek@redhat.com>

        PR c/63543
        * c-tree.h (C_TYPE_ERROR_REPORTED): Define.
        * c-typeck.c (build_indirect_ref): Don't print the "dereferencing..."
        error multiple times.  Print the type.

2014-10-17  Marek Polacek  <polacek@redhat.com>

        PR c/63549
        * c-typeck.c (build_array_ref): Bail if the index in an incomplete
        type.

2014-10-17  Marek Polacek  <polacek@redhat.com>

        * c-decl.c (grokdeclarator): Use OPT_Wimplicit_int unconditionally.
        (start_function): Use OPT_Wimplicit_int instead of 0.
        (store_parm_decls_oldstyle): Likewise.

2014-10-17  Alan Modra  <amodra@gmail.com>

        PR middle-end/61848
        * c-decl.c (merge_decls): Don't merge section name or tls model
        to newdecl symtab node, instead merge to olddecl.  Override
        existing olddecl section name.  Set tls_model for all thread-local
        vars, not just OMP thread-private ones.  Remove incorrect comment.

2014-10-16  Andrew MacLeod  <amacleod@redhat.com>

        * c-decl.c: Adjust include files.

2014-10-14  DJ Delorie  <dj@redhat.com>

        * c-parser.c (c_parse_init): Add RID entries for each __intN.
        (c_token_starts_typename): Check all __intN, not just __int128.
        (c_token_starts_declspecs): Likewise.
        (c_parser_declspecs): Likewise.
        (c_parser_attribute_any_word): Likewise.
        (c_parser_objc_selector): Likewise.
        * c-tree.h (c_typespec_keyword): cts_int128 -> cts_int_n.
        (struct c_declspecs): Add int_n_idx field to record *which* __intN
        is specified.
        * c-decl.c (declspecs_add_type): Check for all __intN, not just
        __int128.
        (finish_declspecs): Likewise.

2014-10-13  Anthony Brandon  <anthony.brandon@gmail.com>

        * c-parser.c (c_parser_all_labels): New function to replace
        the duplicate code.
        (c_parser_statement): Call the new function.

2014-10-09  Marek Polacek  <polacek@redhat.com>

        PR c/63480
        * c-typeck.c (pop_init_level): Don't warn about initializing
        with { }.

2014-10-07  Marek Polacek  <polacek@redhat.com>

        PR c/59717
        * c-decl.c (header_for_builtin_fn): New function.
        (implicitly_declare): Suggest which header to include.

2014-10-07  Marek Polacek  <polacek@redhat.com>

        * c-convert.c (convert): Use error_operand_p.
        * c-typeck.c (require_complete_type): Likewise.
        (really_atomic_lvalue): Likewise.
        (digest_init): Likewise.
        (handle_omp_array_sections_1): Likewise.

2014-10-03  Marek Polacek  <polacek@redhat.com>

        PR c/63453
        * c-decl.c (pop_scope): Don't warn about "inline function declared
        but never defined" for functions marked with gnu_inline attribute.

2014-09-25  Jakub Jelinek  <jakub@redhat.com>

        PR c++/63249
        * c-parser.c (c_parser_omp_variable_list): Call mark_exp_read
        on low_bound and length.

2014-09-24  Marek Polacek  <polacek@redhat.com>

        PR c/61405
        PR c/53874
        * c-parser.c: Don't define CPP_KEYWORD.
        (c_parser_switch_statement): Pass original type to c_finish_case.
        * c-tree.h (c_finish_case): Update declaration.
        * c-typeck.c (c_finish_case): Add TYPE parameter.  Pass it
        conditionally to c_do_switch_warnings.

2014-09-03  Marek Polacek  <polacek@redhat.com>

        PR c/62024
        * c-parser.c (c_parser_static_assert_declaration_no_semi): Strip no-op
        conversions.

2014-09-02  Jakub Jelinek  <jakub@redhat.com>
            Balaji V. Iyer  <balaji.v.iyer@intel.com>
            Igor Zamyatin  <igor.zamyatin@intel.com>

        * c-parser.c (c_parser_cilk_for): New function.
        (c_parser_cilk_grainsize): Likewise.
        (c_get_temp_regvar): Likewise.
        (c_parser_statement_after_labels): Added RID_CILK_FOR case.
        (c_parser_pragma): Added PRAGMA_CILK_GRAINSIZE case.
        (c_parser_omp_for_loop): Added CILK_FOR and CILK_SIMD checks.
        * c-typeck.c (c_finish_omp_clauses): Added OMP_CLAUSE__CILK_FOR_COUNT_
        case.

2014-08-27  Chen Gang  <gang.chen.5i5j@gmail.com>

        * c-aux-info.c (gen_type): Resize 'buff' from 10 to 23 bytes,
        with using HOST_WIDE_INT without truncation to 'int'

2014-08-22  Marek Polacek  <polacek@redhat.com>

        PR c++/62199
        * c-typeck.c (parser_build_binary_op): Adjust call to
        warn_logical_not_parentheses.

2014-08-22  Igor Zamyatin  <igor.zamyatin@intel.com>

        PR other/62008
        * c-parser.c (c_parser_array_notation): Check for correct
        type of an array added.

2014-08-19  Marek Polacek  <polacek@redhat.com>

        PR c++/62153
        * c-typeck.c (build_binary_op): If either operand of a comparison
        is a boolean expression, call maybe_warn_bool_compare.

2014-08-19  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c/45584
        * c-typeck.c (build_c_cast): Do a conversion even when the
        TYPE_MAIN_VARIANTs are the same.

2014-08-19  Marek Polacek  <polacek@redhat.com>

        * c-decl.c (diagnose_mismatched_decls): Unconditionally call
        pedwarn_c99 instead of pedwarn.
        (grokfield): Likewise.
        (warn_defaults_to): New function.
        (grokdeclarator): Call warn_defaults_to instead of pedwarn_c99.
        Unconditionally call pedwarn_c99 instead of pedwarn.
        (start_function): Call warn_defaults_to instead of pedwarn_c99.
        (declspecs_add_scspec): Call pedwarn_c99 instead of pedwarn, don't
        check flag_isoc11 before.
        * c-errors.c (pedwarn_c99): Change the return type to bool.
        Handle -Wc99-c11-compat.
        * c-parser.c (disable_extension_diagnostics): Handle
        warn_c99_c11_compat.
        (restore_extension_diagnostics): Likewise.
        (c_parser_static_assert_declaration_no_semi): Call pedwarn_c99
        instead of pedwarn, don't check flag_isoc11 before.
        (c_parser_declspecs): Likewise.
        (c_parser_alignas_specifier): Likewise.
        (c_parser_alignof_expression): Likewise.
        (c_parser_generic_selection): Likewise.
        * c-tree.h (pedwarn_c99): Update declaration.
        * c-typeck.c (c_finish_return): Call pedwarn or warning_at instead
        of pedwarn_c99.

2014-08-19  Marek Polacek  <polacek@redhat.com>

        * c-decl.c (warn_variable_length_array): Pass OPT_Wvla unconditionally
        to pedwarn_c90.
        * c-errors.c: Include "opts.h".
        (pedwarn_c90): Rewrite to handle -Wno-c90-c99-compat better.
        * c-parser.c (disable_extension_diagnostics): Handle negative value
        of warn_c90_c99_compat, too.
        (restore_extension_diagnostics): Likewise.
        (c_parser_compound_statement_nostart): Pass
        OPT_Wdeclaration_after_statement unconditionally to pedwarn_c90.

2014-08-12  Marek Polacek  <polacek@redhat.com>

        * c-parser.c (c_parser_postfix_expression) <case RID_FUNCTION_NAME>:
        Add pedwarn.
        (c_parser_postfix_expression) <case RID_PRETTY_FUNCTION_NAME>:
        Likewise.
        (c_parser_postfix_expression) <case RID_C99_FUNCTION_NAME>: Likewise.

2014-08-10  Marek Polacek  <polacek@redhat.com>

        PR c/51849
        * c-decl.c (build_array_declarator): Remove check for !flag_isoc99.
        Call pedwarn_c90 instead of pedwarn.
        (check_bitfield_type_and_width): Likewise.
        (declspecs_add_qual): Likewise.
        (declspecs_add_type): Likewise.
        (warn_variable_length_array): Unify function for -pedantic and -Wvla.
        Adjust to only call pedwarn_c90.
        (grokdeclarator): Remove pedantic && !flag_isoc99 check.  Call
        pedwarn_c90 instead of pedwarn.
        * c-errors.c (pedwarn_c90): Handle -Wc90-c99-compat.
        * c-parser.c (disable_extension_diagnostics): Handle
        warn_c90_c99_compat.
        (restore_extension_diagnostics): Likewise.
        (c_parser_enum_specifier): Remove check for !flag_isoc99.  Call
        pedwarn_c90 instead of pedwarn.
        (c_parser_initelt): Likewise.
        (c_parser_postfix_expression): Likewise.
        (c_parser_postfix_expression_after_paren_type): Likewise.
        (c_parser_compound_statement_nostart): Remove check for !flag_isoc99.
        * c-tree.h: Fix formatting.
        * c-typeck.c (build_array_ref): Remove check for !flag_isoc99.  Call
        pedwarn_c90 instead of pedwarn.

2014-08-07  Trevor Saunders  <tsaunders@mozilla.com>

        * c-typeck.c: Remove include of pointer-set.h.

2014-08-07  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c (pointer_diff): Remove P - (P + CST) optimization.

2014-08-02  Trevor Saunders  <tsaunders@mozilla.com>

        * c-typeck.c: Use hash_map instead of pointer_map.

2014-08-02  Trevor Saunders  <tsaunders@mozilla.com>

        * c-decl.c: Use hash_set instead of pointer_set.

2014-08-01  Igor Zamyatin  <igor.zamyatin@intel.com>

        PR middle-end/61455
        * c-array-notation.c (expand_array_notations): Handling
        of DECL_EXPR added.

2014-07-31  Marc Glisse  <marc.glisse@inria.fr>

        PR c++/60517
        * c-typeck.c (c_finish_return): Return 0 instead of the address of
        a local variable.

2014-07-30  Tom Tromey  <tromey@redhat.com>

        * c-typeck.c (struct constructor_stack) <designator_depth>: New
        field.
        (really_start_incremental_init, push_init_level): Initialize
        designator_depth.
        (pop_init_level): Set global designator_depth.
        (process_init_element): Check for designated_init attribute.

2014-07-20  Marek Polacek  <polacek@redhat.com>

        PR c/61852
        * c-decl.c (implicit_decl_warning): Add location_t parameter.  Use it.
        (implicitly_declare): Pass location to implicit_decl_warning.

2014-07-14  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/61294
        * c-parser.c (c_parser_expr_list): Add new argument literal_zero_mask.
        If non-NULL, call c_parser_check_literal_zero.
        (c_parser_check_literal_zero): New function.
        (c_parser_postfix_expression_after_primary): Adjust
        c_parser_expr_list caller, handle -Wmemset-transposed-args.

2014-07-06  Marek Polacek  <polacek@redhat.com>

        PR c/6940
        * c-decl.c (grokdeclarator): Set C_ARRAY_PARAMETER.
        * c-tree.h (C_ARRAY_PARAMETER): Define.
        * c-typeck.c (c_expr_sizeof_expr): Warn when using sizeof on an array
        function parameter.

2014-07-02  Jan Hubicka  <hubicka@ucw.cz>
            Chen Gang  <gang.chen.5i5j@gmail.com>

        * c-decl.c (duplicate_decls): CLear DECL_STRUCT_FUNCTION before
        releasing symbol.

2014-07-01  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c (convert_for_assignment): Pass OPT_Wint_conversion
        instead of 0 to WARN_FOR_ASSIGNMENT.

2014-07-01  Marek Polacek  <polacek@redhat.com>

        PR c/58286
        * c-typeck.c (convert_for_assignment): Pass
        OPT_Wincompatible_pointer_types instead of 0 to WARN_FOR_ASSIGNMENT.

2014-06-30  Marek Polacek  <polacek@redhat.com>

        * c-decl.c (grokdeclarator): Don't instrument VLAs if the function
        has no_sanitize_undefined attribute.

2014-06-30  Igor Zamyatin  <igor.zamyatin@intel.com>

        PR middle-end/57541
        * c-array-notation.c (fix_builtin_array_notation_fn):
        Check for 0 arguments in builtin call. Check that bultin argument is
        correct.
        * c-parser.c (c_parser_array_notation): Check for incorrect initial
        index.

2014-06-27  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * c-parser.c (c_parser_declaration_or_fndef): Discard all type
        qualifiers in __auto_type for atomic types.
        (c_parser_typeof_specifier): Discard all type qualifiers in
        __typeof__ for atomic types.

2014-06-25  Marek Polacek  <polacek@redhat.com>

        PR c/61162
        * c-parser.c (c_parser_statement_after_labels): Pass the location of
        the return expression to c_finish_return.

2014-06-25  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (c_finish_omp_clauses): Make sure
        OMP_CLAUSE_LINEAR_STEP has correct type.

2014-06-24  Trevor Saunders  <tsaunders@mozilla.com>

        * c-decl.c: Adjust.

2014-06-24  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_for_loop): For
        #pragma omp parallel for simd move lastprivate clause from parallel
        to for rather than simd.

2014-06-23  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c (parser_build_binary_op): Don't call
        warn_logical_not_parentheses if the RHS is TRUTH_NOT_EXPR.

2014-06-15  Jan Hubicka  <hubicka@ucw.cz>

        * c-parser.c (c_parser_omp_threadprivate): Likewise.
        * c-decl.c (merge_decls): Likewise.

2014-06-09  Marek Polacek  <polacek@redhat.com>

        PR c/36446
        * c-typeck.c (error_init): Call inform instead of error_at.
        (pedwarn_init): Call inform instead of pedwarn.
        (warning_init): Call inform instead of warning_at.

2014-06-07  Jan Hubicka  <hubicka@ucw.cz>

        * c-decl.c (merge_decls): Use set_decl_section_name.
        (duplicate_decls): Remove node if it exists.

2014-06-05  S. Gilles  <sgilles@terpmail.umd.edu>

        PR c/53119
        * c-typeck.c (push_init_level, process_init_element,
        pop_init_level): Correct check for zero initialization, move
        missing brace warning to respect zero initialization.

2014-06-05  Marek Polacek  <polacek@redhat.com>

        PR c/56724
        * c-typeck.c (convert_for_assignment): Use expr_loc for ic_argpass.

2014-06-05  Marek Polacek  <polacek@redhat.com>

        PR c/49706
        * c-typeck.c (parser_build_binary_op): Warn when logical not is used
        on the left hand side operand of a comparison.

2014-06-05  Marek Polacek  <polacek@redhat.com>

        PR c/48062
        * c-decl.c (warn_if_shadowing): Call inform instead of warning_at.
        Print note only if the warning was printed.

2014-06-04  Igor Zamyatin  <igor.zamyatin@intel.com>

        PR c/58942
        * c-array-notation.c (fix_builtin_array_notation_fn): Handle the case
        with a pointer.

2014-06-03  Marek Polacek  <polacek@redhat.com>

        PR c/60439
        * c-parser.c (c_parser_switch_statement): Pass explicit_cast_p to
        c_start_case.
        * c-tree.h (c_start_case): Update.
        * c-typeck.c (c_start_case): Add new boolean parameter.  Warn if
        switch condition has boolean value.

2014-06-02  Andrew MacLeod  <amacleod@redhat.com>

        * c-decl.c: Include builtins.h.
        * c-parser.c: Likewise.

2014-05-27  Marek Polacek  <polacek@redhat.com>

        PR c/56724
        * c-typeck.c (convert_arguments): Get location of a parameter.  Change
        error and warning calls to error_at and warning_at.  Pass location of
        a parameter to it.  Call warning_at with OPT_Wtraditional_conversion.
        (convert_for_assignment): Add parameter to WARN_FOR_ASSIGNMENT and
        WARN_FOR_QUALIFIERS.  Pass expr_loc to those.

2014-05-26  Igor Zamyatin  <igor.zamyatin@intel.com>

        PR c/61191
        * c-array-notation.c (fix_builtin_array_notation_fn): Check invalid
        function parameters.

2014-05-23  Jan Hubicka  <hubicka@ucw.cz>

        * c-decl.c (merge_decls): Preserve symtab node pointers.
        (duplicate_decls): Free new decl.

2014-05-23  Thomas Schwinge  <thomas@codesourcery.com>

        * c-typeck.c (c_finish_omp_clauses): Remove duplicated variable
        initialization.

        * c-parser.c (c_parser_omp_target): Return bool values.

2014-05-22  Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.c (c_parser_omp_clause_thread_limit): Rename
        num_teams_loc variable to num_thread_limit_loc.

2014-05-21  Richard Sandiford  <rsandifo@linux.vnet.ibm.com>

        * c-array-notation.c (expand_array_notations): Use void_node
        instead of void_zero_node.

2014-05-17  Trevor Saunders  <tsaunders@mozilla.com>

        * c-decl.c (finish_struct): Adjust.
        (finish_enum): Likewise.
        (bind): Adjust.
        (record_inline_static): Likewise.
        (push_scope): Likewise.
        (make_label): Likewise.
        (lookup_label_for_goto): Likewise.
        (finish_struct): Likewise.
        (finish_enum): Likewise.
        (store_parm_decls): Likewise.
        (c_push_function_context): Likewise.
        * c-lang.h: Remove usage of variable_size gty attribute.
        * c-parser.c (c_parse_init): Adjust.
        (c_parse_file): Likewise.

2014-05-13  Marek Polacek  <polacek@redhat.com>

        PR c/61162
        * c-typeck.c (convert_for_assignment): Pass location to
        WARN_FOR_ASSIGNMENT instead of input_location.

2014-05-10  Marek Polacek  <polacek@redhat.com>

        * c-parser.c (c_parser_declaration_or_fndef): Pass init_loc to
        maybe_warn_string_init.
        (c_parser_postfix_expression_after_paren_type): Pass type_loc to
        maybe_warn_string_init.
        * c-tree.h (maybe_warn_string_init): Update declaration.
        * c-typeck.c (maybe_warn_string_init): Add location parameter.
        Call pedwarn_init with loc instead of with input_location.
        (digest_init): Pass init_loc to maybe_warn_string_init.
        (pop_init_level): Call pedwarn_init with loc instead of with
        input_location.
        (set_init_index): Likewise.
        (process_init_element): Likewise.

2014-05-09  Marek Polacek  <polacek@redhat.com>

        PR c/61096
        * c-parser.c (c_parser_braced_init): Pass brace_loc to push_init_level.
        (c_parser_initelt): Pass location to set_init_label.  Pass array index
        location to set_init_index.
        * c-tree.h (push_init_level): Update declaration.
        (pop_init_level): Likewise.
        (set_init_index): Likewise.
        (set_init_label): Likewise.
        * c-typeck.c (error_init): Add location parameter.  Call error_at
        instead of error.
        (digest_init): Pass init_loc to error_init.
        (really_start_incremental_init):
        (push_init_level): Add location parameter.  Pass loc to pop_init_level
        and error_init.
        (pop_init_level): Likewise.
        (set_designator): Add location parameter.  Pass loc to pop_init_level,
        push_init_level, and error_init.
        (set_init_index): Add location parameter.  Pass loc to error_init and
        set_designator.
        (set_init_label): Likewise.
        (output_init_element): Pass loc to error_init.
        (process_init_element): Pass loc to error_init, pop_init_level,
        pedwarn_init, and push_init_level.

2014-05-09  Marek Polacek  <polacek@redhat.com>

        PR c/50459
        * c-parser.c (c_parser_attributes): Parse the arguments as an
        expression-list if the attribute takes identifier.

2014-05-08  Marek Polacek  <polacek@redhat.com>

        PR c/61053
        * c-decl.c (grokdeclarator): Use min_align_of_type instead of
        TYPE_ALIGN_UNIT.

2014-05-08  Marek Polacek  <polacek@redhat.com>

        PR c/61077
        * c-decl.c (start_function): Warn for _Atomic-qualified return type
        of main.

2014-05-06  Kenneth Zadeck  <zadeck@naturalbridge.com>
            Mike Stump  <mikestump@comcast.net>
            Richard Sandiford  <rdsandiford@googlemail.com>

        * c-decl.c (check_bitfield_type_and_width): Use TYPE_SIGN.
        (finish_enum): Use wide-int interfaces.
        * c-parser.c (c_parser_cilk_clause_vectorlength): Likewise.
        * c-typeck.c (build_c_cast): Likewise.
        (set_nonincremental_init_from_string): Likewise.
        (c_tree_equal): Likewise.

2014-05-02  Marek Polacek  <polacek@redhat.com>

        PR c/25801
        * c-typeck.c (c_size_in_bytes): Update comment.  Don't call error.
        Return size_one_node when the type is not complete.
        (pointer_diff): Remove comment.
        (build_unary_op): Improve error messages.

2014-05-02  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c (c_finish_return): Separate warning_at calls.

2014-05-02  Marek Polacek  <polacek@redhat.com>

        * c-tree.h (error_init): Remove declaration.
        (pedwarn_init): Likewise.
        * c-typeck.c (error_init): Make static and move above.
        (pedwarn_init): Likewise.
        (warning_init): Move above.
        (maybe_warn_string_init): Likewise.

2014-05-01  Jeff Law  <law@redhat.com>

        Revert:

        2014-04-24  Prathamesh Kulkarni  <bilbotheelffriend@gmail.com>
        * c-parser.c (c_parser_sizeof_expression): Reorganize slightly to
        avoid goto.

2014-05-02  Marek Polacek  <polacek@redhat.com>

        PR c/60784
        * c-typeck.c (push_init_level): Set constructor_designated to
        p->designated for structures.

2014-05-01  Marek Polacek  <polacek@redhat.com>

        PR c/60915
        * c-parser.c (c_parser_declaration_or_fndef): Give better error if
        function-definition has an attribute after the declarator.

2014-05-01  Marek Polacek  <polacek@redhat.com>

        PR c/60257
        * c-typeck.c (warning_init): Add location_t parameter.  Call
        warning_at instead of warning.
        (push_init_level): Pass input_location to warning_init.
        (add_pending_init): Add location_t parameter.  Pass loc to
        warning_init.
        (set_nonincremental_init): Pass input_location to add_pending_init.
        (set_nonincremental_init_from_string): Likewise.
        (output_init_element): Pass loc to warning_init and to
        add_pending_init.

2014-05-01  Marek Polacek  <polacek@redhat.com>

        PR c/43395
        * c-typeck.c (c_finish_return): Distinguish between label and variable
        when warning about returning local address.

2014-05-01  Marek Polacek  <polacek@redhat.com>

        PR c/29467
        * c-decl.c (declspecs_add_type): Pedwarn if boolean types are used
        in C89 mode.

2014-05-01  Marek Polacek  <polacek@redhat.com>

        PR c/43245
        * c-typeck.c (convert_for_assignment): Pass OPT_Wdiscarded_qualifiers
        instead of 0 to WARN_FOR_QUALIFIERS.

2014-05-01  Marek Polacek  <polacek@redhat.com>

        PR c/56989
        * c-typeck.c (default_conversion): Use better location for
        error call.

2014-04-30  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c (build_binary_op): Call ubsan_instrument_division
        also when SANITIZE_FLOAT_DIVIDE is on.

2014-04-30  Marek Polacek  <polacek@redhat.com>

        PR c/60139
        * c-typeck.c (output_init_element): Pass OPT_Wpedantic to pedwarn
        and pedwarn_init.  Use loc insted of input_location.

2014-04-30  Marek Polacek  <polacek@redhat.com>

        PR c/60351
        * c-typeck.c (build_binary_op): Use location when warning about
        shift count.

2014-04-25  Marek Polacek  <polacek@redhat.com>

        PR c/18079
        * c-decl.c (diagnose_mismatched_decls): Warn for mismatched
        always_inline/noinline and hot/cold attributes.

2014-04-25  Marek Polacek  <polacek@redhat.com>

        PR c/60114
        * c-parser.c (c_parser_initelt): Pass input_location to
        process_init_element.
        (c_parser_initval): Pass loc to process_init_element.
        * c-tree.h (process_init_element): Adjust declaration.
        * c-typeck.c (push_init_level): Pass input_location to
        process_init_element.
        (pop_init_level): Likewise.
        (set_designator): Likewise.
        (output_init_element): Add location_t parameter.  Pass loc to
        digest_init.
        (output_pending_init_elements): Pass input_location to
        output_init_element.
        (process_init_element): Add location_t parameter.  Pass loc to
        output_init_element.

2014-04-24  Jakub Jelinek  <jakub@redhat.com>

        * c-parser.c (c_parser_omp_atomic): Allow seq_cst before
        atomic-clause, allow comma in between atomic-clause and
        seq_cst.

2014-04-22  Jakub Jelinek  <jakub@redhat.com>

        PR c/59073
        * c-parser.c (c_parser_omp_parallel): If c_parser_omp_for
        fails, don't set OM_PARALLEL_COMBINED and return NULL.

2014-04-12  Igor Zamyatin  <igor.zamyatin@intel.com>

        PR middle-end/60469
        * c-array-notation.c (fix_builtin_array_notation_fn): Use
        create_tmp_var instead build_decl for creating temps.
        (build_array_notation_expr): Likewise.
        (fix_conditional_array_notations_1): Likewise.
        (fix_array_notation_expr): Likewise.
        (fix_array_notation_call_expr): Likewise.

2014-03-28  Jakub Jelinek  <jakub@redhat.com>

        PR c++/60689
        * c-tree.h (c_build_function_call_vec): New prototype.
        * c-typeck.c (build_function_call_vec): Don't call
        resolve_overloaded_builtin here.
        (c_build_function_call_vec): New wrapper function around
        build_function_call_vec.  Call resolve_overloaded_builtin here.
        (convert_lvalue_to_rvalue, build_function_call, build_atomic_assign):
        Call c_build_function_call_vec instead of build_function_call_vec.
        * c-parser.c (c_parser_postfix_expression_after_primary): Likewise.
        * c-decl.c (finish_decl): Likewise.

2014-03-18  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c/55383
        * c-typeck.c: Use correct format string in cast-qual warning

2014-03-07  Thomas Schwinge  <thomas@codesourcery.com>

        * c-decl.c (c_decl_attributes): Use
        lang_hooks.types.omp_mappable_type.
        * c-typeck.c (c_finish_omp_clauses): Likewise.

2014-03-06  Marek Polacek  <polacek@redhat.com>

        PR c/60197
        * c-typeck.c (c_finish_return): Call contains_cilk_spawn_stmt instead
        of checking tree code.

2014-02-19  Prathamesh Kulkarni  <bilbotheelffriend@gmail.com>

        * c-parser.c (c_parser_declspecs): Replace call to error by error_at.
        (c_parser_parameter_declaration): Likewise.

2014-02-19  Marek Polacek  <polacek@redhat.com>

        PR c/60195
        * c-typeck.c (convert_lvalue_to_rvalue): Set TREE_NO_WARNING on tmp.
        Call mark_exp_read on exp.value.
        (build_atomic_assign): Set TREE_NO_WARNING on val and old.  Set
        TREE_ADDRESSABLE on old instead of val.
        (emit_side_effect_warnings): Warn only if RHS has !TREE_NO_WARNING.

2014-02-07  Prathamesh Kulkarni  <bilbotheelffriend@gmail.com>

        * c-parser.c (c_parser_get_builtin_args): Replace calls to
        C_EXPR_APPEND by vec_safe_push.
        * c-tree.h (C_EXPR_APPEND): Remove.

2014-01-31  Marek Polacek  <polacek@redhat.com>

        PR c/59963
        * c-typeck.c (convert_lvalue_to_rvalue): Pass vNULL to
        build_function_call_vec.
        (build_function_call): Likewise.
        (build_atomic_assign): Likewise.
        (build_function_call_vec): Add arg_loc parameter.  Use it.
        (convert_arguments): Likewise.
        (convert_for_assignment): Rename rhs_loc to expr_loc.
        * c-parser.c (c_parser_attributes): Pass NULL to c_parser_expr_list.
        (c_parser_objc_keywordexpr): Likewise.
        (c_parser_postfix_expression_after_primary): Call
        build_function_call_vec with expr_loc rather than op_loc.
        Call c_parser_expr_list to fill arg_loc.  Pass arg_loc to
        build_function_call_vec.
        (c_parser_expr_list): Add locations parameter.  Fill it with locations
        of function arguments.
        * c-decl.c (finish_decl): Pass vNULL to build_function_call_vec.

2014-01-30  Marek Polacek  <polacek@redhat.com>

        PR c/59940
        * c-typeck.c (build_function_call_vec): Use loc parameter.
        (convert_arguments): Add location parameter.  Use it.
        (ep_convert_and_check): Likewise.
        (build_atomic_assign): Adjust convert_for_assignment call.
        (build_modify_expr): Likewise.
        (digest_init): Likewise.
        (c_finish_return): Likewise.
        (build_conditional_expr): Adjust ep_convert_and_check calls.
        (convert_for_assignment): Add rhs_loc parameter.  Use it.
        (build_binary_op): Adjust convert_and_check and ep_convert_and_check
        calls.

2014-01-30  Richard Biener  <rguenther@suse.de>

        PR c/59905
        * c-typeck.c (build_function_call_vec): Do not replace calls
        to a function via an incompatible type with a runtime abort.

2014-01-24  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        * c-parser.c (c_parser_declaration_or_fndef): Replaced
        flag_enable_cilkplus with flag_cilkplus.
        (c_parser_direct_declarator_inner): Likewise.
        (c_parser_attribute_any_word): Likewise.
        (c_parser_attributes): Likewise.
        (c_parser_compound_statement): Likewise.
        (c_parser_statement_after_labels): Likewise.
        (c_parser_if_statement): Likewise.
        (c_parser_switch_statement): Likewise.
        (c_parser_do_statement): Likewise.
        (c_parser_for_statement): Likewise.
        (c_parser_unary_expression): Likewise.
        (c_parser_postfix_expression): Likewise.
        (c_parser_postfix_expression_after_primary): Likewise.
        (c_parser_postfix_expression_after_primary): Likewise.
        (c_parser_omp_clause_name): Likewise.
        (c_finish_omp_declare_simd): Likewise.
        (c_parser_cilk_verify_simd): Likewise.
        * c-typeck.c (build_array_ref): Likewise.
        (build_function_call_vec): Likewise.
        (convert_arguments): Likewise.
        (build_compound_expr): Likewise.
        (c_finish_return): Likewise.
        (c_finish_if_stmt): Likewise.
        (c_finish_loop): Likewise.
        (build_binary_op): Likewise.

2014-01-23  Marek Polacek  <polacek@redhat.com>

        PR c/59846
        * c-typeck.c (parser_build_binary_op): Use location instead of
        input_location.
        (build_binary_op): Pass location to shorten_compare.

2014-01-23  Marek Polacek  <polacek@redhat.com>

        PR c/58346
        * c-typeck.c (pointer_diff): Give an error on arithmetic on pointer to
        an empty aggregate.

2014-01-23  Marek Polacek  <polacek@redhat.com>

        PR c/59871
        * c-typeck.c (build_compound_expr): Warn even for right-hand operand
        of a comma expression.
        (emit_side_effect_warnings): Likewise.

2014-01-23  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        PR c/59825
        * c-array-notation.c (expand_array_notation_exprs): Rewrote this
        function to use walk_tree and moved a lot of its functionality to
        expand_array_notations.
        (expand_array_notations): New function.

2014-01-23  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        * c-parser.c (c_finish_omp_declare_simd): Made "cilk simd function"
        attribute an attribute without value.

2014-01-23  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/58809
        * c-typeck.c (c_finish_omp_clause): Reject MIN_EXPR, MAX_EXPR,
        BIT_AND_EXPR, BIT_IOR_EXPR and BIT_XOR_EXPR on COMPLEX_TYPEs.

2014-01-22  Marek Polacek  <polacek@redhat.com>

        PR c/59891
        * c-typeck.c (build_conditional_expr): Call c_fully_fold instead
        of remove_c_maybe_const_expr on op1 and op2.

2014-01-15  Jakub Jelinek  <jakub@redhat.com>

        PR c/58943
        * c-typeck.c (build_modify_expr): For lhs op= rhs, if rhs has side
        effects, preevaluate rhs using SAVE_EXPR first.

2014-01-09  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        PR c++/59631
        * c-parser.c (c_parser_postfix_expression): Replaced consecutive if
        statements with if-elseif statements.

2014-01-06  Marek Polacek  <polacek@redhat.com>

        PR c/57773
        * c-decl.c (check_bitfield_type_and_width): Warn for implementation
        defined bit-field types only in ISO C.

2014-01-02  Richard Sandiford  <rdsandiford@googlemail.com>

        Update copyright years

2014-01-02  Richard Sandiford  <rdsandiford@googlemail.com>

        * c-array-notation.c: Use the standard form for the copyright notice.

2013-12-18  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        * c-parser.c (struct c_parser::cilk_simd_fn_tokens): Added new field.
        (c_parser_declaration_or_fndef): Added a check if cilk_simd_fn_tokens
        field in parser is not empty.  If not-empty, call the function
        c_parser_finish_omp_declare_simd.
        (c_parser_cilk_clause_vectorlength): Modified function to be shared
        between SIMD-enabled functions and #pragma simd.  Added new parameter.
        (c_parser_cilk_all_clauses): Modified the usage of the function
        c_parser_cilk_clause_vectorlength as mentioned above.
        (c_parser_cilk_simd_fn_vector_attrs): New function.
        (c_finish_cilk_simd_fn_tokens): Likewise.
        (is_cilkplus_vector_p): Likewise.
        (c_parser_omp_clause_name): Added checking for "vectorlength,"
        "nomask," and "mask" strings in clause name.
        (c_parser_omp_all_clauses): Added 3 new case statements:
        PRAGMA_CILK_CLAUSE_VECTORLENGTH, PRAGMA_CILK_CLAUSE_MASK and
        PRAGMA_CILK_CLAUSE_NOMASK.
        (c_parser_attributes): Added a cilk_simd_fn_tokens parameter.  Added a
        check for vector attribute and if so call the function
        c_parser_cilk_simd_fn_vector_attrs.  Also, when Cilk plus is enabled,
        called the function c_finish_cilk_simd_fn_tokens.
        (c_finish_omp_declare_simd): Added a check if cilk_simd_fn_tokens in
        parser field is non-empty.  If so, parse them as you would parse
        the omp declare simd pragma.
        (c_parser_omp_clause_linear): Added a new bool parm. is_cilk_simd_fn.
        Added a check when step is a parameter and flag it as error.
        (CILK_SIMD_FN_CLAUSE_MASK): New #define.
        (c_parser_cilk_clause_name): Changed pragma_cilk_clause to
        pragma_omp_clause.

2013-12-17  Thomas Schwinge  <thomas@codesourcery.com>

        * c-parser.c (c_parser_omp_parallel): Fix description.

2013-12-11  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        * c-objc-common.h (LANG_HOOKS_CILKPLUS_FRAME_CLEANUP): Remove.
        (LANG_HOOKS_CILKPLUS_DETECT_SPAWN_AND_UNWRAP): Likewise.
        (LANG_HOOKS_CILKPLUS_CILKPLUS_GIMPLIFY_SPAWN): Likewise.
        * c-typeck.c (cilk_install_body_with_frame_cleanup): New function.

2013-12-04  Joseph Myers  <joseph@codesourcery.com>

        PR c/52023
        * c-parser.c (c_parser_alignas_specifier): Use
        c_sizeof_or_alignof_type instead of c_alignof.
        (c_parser_alignof_expression): Likewise, with min_alignof
        parameter depending on alignof spelling used.

2013-12-04  Marek Polacek  <polacek@redhat.com>

        PR c/54113
        * c-decl.c (start_function): Don't warn for missing prototype for
        inline functions.

2013-12-03  Marek Polacek  <polacek@redhat.com>

        PR c/59351
        * c-decl.c (build_compound_literal): Allow compound literals with
        empty initial value.

2013-12-02  Joseph Myers  <joseph@codesourcery.com>

        PR c/58235
        * c-typeck.c (build_modify_expr): Diagnose assignment to
        expression with array type.

2013-11-29  Joseph Myers  <joseph@codesourcery.com>

        PR c/42262
        * c-typeck.c (process_init_element): Do not treat a string as
        initializing a whole array when used with a designator for an
        individual element.

2013-11-29  Joseph Myers  <joseph@codesourcery.com>

        PR c/57574
        * c-decl.c (merge_decls): Clear DECL_EXTERNAL for a definition of
        an inline function following a static declaration.

2013-11-28  Jakub Jelinek  <jakub@redhat.com>

        PR c/59310
        * c-parser.c (c_parser_omp_target): Copy "#pragma omp target"
        to p_name before calling c_parser_omp_teams instead of after.
        (c_parser_cilk_simd): Remove wrong ATTRIBUTE_UNUSED from parser
        argument.  Remove unused p_name variable.

2013-11-27  Aldy Hernandez  <aldyh@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        * c-decl.c (c_builtin_function_ext_scope): Avoid binding if
        external_scope is NULL.

2013-11-27  Tom de Vries  <tom@codesourcery.com>
            Marc Glisse  <marc.glisse@inria.fr>

        PR c++/59032
        * c-typeck.c (build_unary_op): Allow vector increment and decrement.

2013-11-22  Andrew MacLeod  <amacleod@redhat.com>

        * c-typeck.c: Add required include files from gimple.h.

2013-11-22  David Malcolm  <dmalcolm@redhat.com>

        * c-decl.c (define_label, shadow_tag_warned)
        (check_bitfield_type_and_width, grokdeclarator, grokparms,
        store_parm_decls_newstyle, store_parm_decls_oldstyle)
        (declspecs_add_type): Remove use of in_system_header macro.
        * c-parser.c (c_parser_unary_expression): Likewise.
        * c-typeck.c (store_init_value, process_init_element)
        (c_start_case): Likewise.

        * c-decl.c (build_enumerator): Remove use of EXPR_LOC_OR_HERE
        macro.

        * c-parser.c (c_parser_set_source_position_from_token): Remove
        reference to in_system_header from comment.

2013-11-18  Richard Sandiford  <rdsandiford@googlemail.com>

        * c-decl.c (grokdeclarator): Update comment to refer to
        tree_to_[su]hwi rather than tree_low_cst.

2013-11-18  Richard Sandiford  <rdsandiford@googlemail.com>

        * c-decl.c, c-typeck.c: Replace tree_low_cst (..., 1) with
        tree_to_uhwi throughout.

2013-11-18  Richard Sandiford  <rdsandiford@googlemail.com>

        * c-parser.c: Replace tree_low_cst (..., 0) with tree_to_shwi
        throughout.

2013-11-18  Richard Sandiford  <rdsandiford@googlemail.com>

        * c-parser.c: Replace host_integerp (..., 0) with tree_fits_shwi_p
        throughout.

2013-11-15  Aldy Hernandez  <aldyh@redhat.com>

        * c-parser.c (c_parser_cilk_simd): New.
        (c_parser_cilk_verify_simd): New.
        (c_parser_pragma): Add case for PRAGMA_CILK_SIMD.
        (c_parser_omp_for_loop): Add case for NE_EXPR.
        Set c_break_label for CILK_SIMD.
        (c_parser_cilk_clause_vectorlength): New.
        (c_parser_cilk_clause_linear): New.
        (c_parser_cilk_clause_name): New.
        (c_parser_cilk_all_clauses): New.
        * c-typeck.c (build_unary_op): Pass location argument to
        readonly_error.
        (build_modify_expr): Same.
        (build_asm_expr): Same.
        (c_finish_bc_stmt): Error on break/continue in loops.

2013-11-14  Andrew MacLeod  <amacleod@redhat.com>

        * c-typeck.c: Include only gimplify.h and gimple.h as needed.

2013-11-14  Diego Novillo  <dnovillo@google.com>

        * c-decl.c: Include print-tree.h.
        Include stor-layout.h.
        Include varasm.h.
        Include attribs.h.
        Include stringpool.h.
        * c-lang.c: Include fold-const.h.
        * c-parser.c: Include stringpool.h.
        Include attribs.h.
        Include stor-layout.h.
        Include varasm.h.
        Include trans-mem.h.
        * c-typeck.c: Include stor-layout.h.
        Include trans-mem.h.
        Include varasm.h.
        Include stmt.h.

2013-11-13  Joseph Myers  <joseph@codesourcery.com>

        * c-tree.h (c_typespec_keyword): Add cts_auto_type.
        * c-decl.c (declspecs_add_type, finish_declspecs): Handle
        __auto_type.
        * c-parser.c (c_token_starts_typename, c_token_starts_declspecs)
        (c_parser_attribute_any_word, c_parser_objc_selector): Handle
        RID_AUTO_TYPE.
        (c_parser_declspecs): Take argument AUTO_TYPE_OK.
        (c_parser_declaration_or_fndef, c_parser_struct_declaration)
        (c_parser_declarator, c_parser_direct_declarator_inner)
        (c_parser_parameter_declaration, c_parser_type_name): All callers
        changed.
        (c_parser_declaration_or_fndef): Handle declarations with type
        determined from the initializer.

2013-11-12  Andrew MacLeod  <amacleod@redhat.com>

        * c-typeck.c: Include gimplify.h.

2013-11-12  Joseph Myers  <joseph@codesourcery.com>

        * c-tree.h (struct c_declspecs): Add thread_gnu_p field.
        * c-parser.c (c_parser_declspecs): Mention _Thread_local in
        comment.
        * c-decl.c (shadow_tag_warned, grokdeclarator): Mention __thread
        or _Thread_local as appropriate in diagnostics.
        (build_null_declspecs): Initialize ret->thread_gnu_p.
        (declspecs_add_scspec): Handle either __thread or _Thread_local
        for RID_THREAD.  Diagnose _Thread_local for pre-C11 standards if
        pedantic.  Do not disallow _Thread_local extern and _Thread_local
        static.

2013-11-07  Joseph Myers  <joseph@codesourcery.com>
            Andrew MacLeod  <amacleod@redhat.com>

        * c-aux-info.c (gen_type): Handle atomic qualifier.
        * c-decl.c (validate_proto_after_old_defn): Do not remove atomic
        qualifiers when compating types.
        (shadow_tag_warned): Handle atomic_p in declspecs.
        (quals_from_declspecs): Likewise.
        (start_decl): Use c_type_promotes_to when promoting argument
        types.
        (grokdeclarator): Handle _Atomic.
        (get_parm_info): Diagnose any qualifier on "void" as only
        parameter.
        (store_parm_decls_oldstyle): Do not remove atomic qualifiers when
        comparing types.  Use c_type_promotes_to when promoting argument
        types.
        (finish_function): Use c_type_promotes_to when promoting argument
        types.
        (build_null_declspecs): Handle atomic_p in declspecs.
        (declspecs_add_qual): Handle RID_ATOMIC.
        * c-parser.c (c_token_starts_typename, c_token_is_qualifier)
        (c_token_starts_declspecs): Handle RID_ATOMIC.
        (c_parser_declspecs): Handle atomic type specifiers and
        qualifiers.
        (c_parser_typeof_specifier): Remove const and _Atomic qualifiers
        from types of expressions with atomic type.
        (c_parser_direct_declarator_inner): Use convert_lvalue_to_rvalue.
        (c_parser_attribute_any_word): Handle RID_ATOMIC.
        (c_parser_initializer, c_parser_initelt, c_parser_initval)
        (c_parser_statement_after_labels, c_parser_switch_statement)
        (c_parser_for_statement, c_parser_expr_no_commas)
        (c_parser_conditional_expression, c_parser_binary_expression)
        (c_parser_cast_expression, c_parser_unary_expression)
        (c_parser_postfix_expression)
        (c_parser_postfix_expression_after_primary, c_parser_expression):
        Use convert_lvalue_to_rvalue.
        (c_parser_expression_conv, c_parser_expr_list): Document
        conversion of lvalues to rvalues.  Use convert_lvalue_to_rvalue.
        (c_parser_objc_synchronized_statement): Use
        convert_lvalue_to_rvalue.
        (c_parser_objc_selector): Handle RID_ATOMIC.
        (c_parser_objc_receiver, c_parser_array_notation): Use
        convert_lvalue_to_rvalue.
        * c-tree.h (ctsk_typeof): Adjust comment to mention use for
        _Atomic (type-name).
        (struct c_declspecs): Add atomic_p field.
        (convert_lvalue_to_rvalue): Declare.
        * c-typeck.c (c_type_promotes_to): Promote atomic types to
        corresponding atomic types.
        (qualify_type): Don't add _Atomic qualifiers from second argument.
        (comp_target_types): Do not allow _Atomic mismatches.
        (type_lists_compatible_p): Do not remove atomic qualifiers when
        comparing types.
        (really_atomic_lvalue, convert_lvalue_to_rvalue)
        (build_atomic_assign): New functions.
        (build_unary_op): Use build_atomic_assign for atomic increment and
        decrement.
        (build_conditional_expr): Do not treat _Atomic void as a qualified
        version of void.
        (build_modify_expr): Use build_atomic_assign for atomic LHS.
        (find_anonymous_field_with_type, convert_to_anonymous_field)
        (convert_for_assignment): Do not remove atomic qualifiers when
        comparing types.
        (digest_init): Do not accept initialization of arrays of atomic
        elements by string constants.
        (build_asm_expr): Use convert_lvalue_to_rvalue.
        (build_binary_op): Do not treat _Atomic void as a qualified
        version of void.

2013-11-06  DJ Delorie  <dj@redhat.com>

        * c-decl.c (locate_old_decl): If a previous conflicting decl is
        both explicit and builtin, print the location of the explicit one.

2013-11-05  Tobias Burnus  <burnus@net-b.de>

        * c-parser.c (c_parser_omp_for, c_parser_omp_parallel,
        c_parser_omp_distribute, c_parser_omp_teams,
        c_parser_omp_target, c_parser_omp_declare): Handle
        -fopenmp-simd.

2013-11-03  Marek Polacek  <polacek@redhat.com>

        * c-decl.c (grokdeclarator): Add VLA instrumentation.

2013-11-01  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (c_finish_omp_clauses) <case OMP_CLAUSE_UNIFORM>: Go to
        check_dup_generic at the end, unless remove is true.
        (c_finish_omp_clauses) <case OMP_CLAUSE_REDUCTION>: Add break; after
        remove = true;.
        (c_finish_omp_clauses) <case OMP_CLAUSE_COPYIN>: Likewise.

2013-10-31  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (c_finish_omp_clauses): Diagnose aligned clause
        with decl that is not pointer nor array.

2013-10-29  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        * c-decl.c (finish_function): Added a call for insert_cilk_frame when
        a spawning function is found.
        * c-objc-common.h (LANG_HOOKS_CILKPLUS_GIMPLIFY_SPAWN): New #define.
        (LANG_HOOKS_CILKPLUS_FRAME_CLEANUP): Likewise.
        (LANG_HOOKS_CILKPLUS_DETECT_SPAWN_AND_UNWRAP): Likewise.
        * c-parser.c (c_parser_statement_after_labels): Added RID_CILK_SYNC
        case.
        (c_parser_postfix_expression): Added RID_CILK_SPAWN case.
        * c-typeck.c (build_compound_expr): Reject _Cilk_spawn in a comma
        expr.
        (c_finish_return): Added a check to reject _Cilk_spawn in return
        expression.
        (build_cilk_spawn): New function.
        (build_cilk_sync): Likewise.
        * Makefile.in (c-decl.o): Added cilk.h in dependency list.

2013-10-27  Tobias Burnus  <burnus@net-b.de>

        PR other/33426
        * c-parser.c (c_parser_while_statement, c_parser_while_statement,
        c_parser_pragma): Add GCC ivdep support to 'do' and 'while'.
        (c_parser_statement_after_labels): Update calls.

2013-10-24  Tobias Burnus  <burnus@net-b.de>

        PR other/33426
        * c-parser.c (c_parser_pragma, c_parser_for_statement):
        Handle PRAGMA_IVDEP.
        (c_parser_statement_after_labels): Update call.

2013-10-24  Marek Polacek  <polacek@redhat.com>

        * c-parser.c (c_parser_struct_declaration): Add a comment.
        (c_parser_declarator): Don't allow _Alignas here.

2013-10-17  Andrew MacLeod  <amacleod@redhat.com>

        * c-parser.c: Include omp-low.h.
        * c-typeck.c: Likewise.

2013-10-17  Marek Polacek  <polacek@redhat.com>

        PR c/58267
        * c-parser.c (c_parser_declspecs): Add alignspec_ok parameter.
        Document syntax of the array-declarator.
        (c_parser_declspecs) <RID_ALIGNAS>: Bail out if alignment specs
        are not permitted.
        (c_parser_declaration_or_fndef): Adjust c_parser_declspecs call.
        (c_parser_struct_declaration): Likewise.
        (c_parser_declarator): Likewise.
        (c_parser_direct_declarator_inner): Likewise.
        (c_parser_parameter_declaration): Likewise.
        (c_parser_type_name): Likewise.

2013-10-11  Jakub Jelinek  <jakub@redhat.com>

        * c-lang.h (current_omp_declare_target_attribute): New extern
        decl.
        * c-parser.c: Include c-lang.h.
        (struct c_parser): Change tokens to c_token *.
        Add tokens_buf field.  Change tokens_avail type to unsigned int.
        (c_parser_consume_token): If parser->tokens isn't
        &parser->tokens_buf[0], increment parser->tokens.
        (c_parser_consume_pragma): Likewise.
        (enum pragma_context): Add pragma_struct and pragma_param.
        (c_parser_external_declaration): Adjust
        c_parser_declaration_or_fndef caller.
        (c_parser_declaration_or_fndef): Add omp_declare_simd_clauses
        argument, if it is non-vNULL vector, call c_finish_omp_declare_simd.
        Adjust recursive call.
        (c_parser_struct_or_union_specifier): Use pragma_struct instead
        of pragma_external.
        (c_parser_parameter_declaration): Use pragma_param instead of
        pragma_external.
        (c_parser_compound_statement_nostart, c_parser_label,
        c_parser_for_statement): Adjust
        c_parser_declaration_or_fndef callers.
        (c_parser_expr_no_commas): Add omp_atomic_lhs argument, pass
        it through to c_parser_conditional_expression.
        (c_parser_conditional_expression): Add omp_atomic_lhs argument,
        pass it through to c_parser_binary_expression.  Adjust recursive
        call.
        (c_parser_binary_expression): Remove prec argument, add
        omp_atomic_lhs argument instead.  Always start from PREC_NONE, if
        omp_atomic_lhs is non-NULL and one of the arguments of toplevel
        binop matches it, use build2 instead of parser_build_binary_op.
        (c_parser_pragma): Handle PRAGMA_OMP_CANCEL,
        PRAGMA_OMP_CANCELLATION_POINT, PRAGMA_OMP_TARGET,
        PRAGMA_OMP_END_DECLARE_TARGET, PRAGMA_OMP_DECLARE_REDUCTION.
        Handle pragma_struct and pragma_param the same as pragma_external.
        (c_parser_omp_clause_name): Parse new OpenMP 4.0 clause names.
        (c_parser_omp_variable_list): Parse array sections for
        OMP_CLAUSE_{DEPEND,MAP,TO,FROM} clauses.
        (c_parser_omp_clause_collapse): Fully fold collapse expression.
        (c_parser_omp_clause_reduction): Handle user defined reductions.
        (c_parser_omp_clause_branch, c_parser_omp_clause_cancelkind,
        c_parser_omp_clause_num_teams, c_parser_omp_clause_thread_limit,
        c_parser_omp_clause_aligned, c_parser_omp_clause_linear,
        c_parser_omp_clause_safelen, c_parser_omp_clause_simdlen,
        c_parser_omp_clause_depend, c_parser_omp_clause_map,
        c_parser_omp_clause_device, c_parser_omp_clause_dist_schedule,
        c_parser_omp_clause_proc_bind, c_parser_omp_clause_to,
        c_parser_omp_clause_from, c_parser_omp_clause_uniform): New functions.
        (c_parser_omp_all_clauses): Add finish_p argument.  Don't call
        c_finish_omp_clauses if it is false.  Handle new OpenMP 4.0 clauses.
        (c_parser_omp_atomic): Parse seq_cst clause, pass true if it is
        present to c_finish_omp_atomic.  Handle OpenMP 4.0 atomic forms.
        (c_parser_omp_for_loop): Add CODE argument, pass it through
        to c_finish_omp_for.  Change last argument to cclauses,
        and adjust uses to grab parallel clauses from the array of all
        the split clauses.  Adjust c_parser_binary_expression,
        c_parser_declaration_or_fndef and c_finish_omp_for callers.
        (omp_split_clauses): New function.
        (c_parser_omp_simd): New function.
        (c_parser_omp_for): Add p_name, mask and cclauses arguments.
        Allow the function to be called also when parsing combined constructs,
        and call c_parser_omp_simd when parsing for simd.
        (c_parser_omp_sections_scope): If section-sequence doesn't start with
        #pragma omp section, require exactly one structured-block instead of
        sequence of statements.
        (c_parser_omp_sections): Add p_name, mask and cclauses arguments.
        Allow the function to be called also when parsing combined constructs.
        (c_parser_omp_parallel): Add p_name, mask and cclauses arguments.
        Allow the function to be called also when parsing combined
        constructs.
        (c_parser_omp_taskgroup, c_parser_omp_cancel,
        c_parser_omp_cancellation_point, c_parser_omp_distribute,
        c_parser_omp_teams, c_parser_omp_target_data,
        c_parser_omp_target_update, c_parser_omp_target,
        c_parser_omp_declare_simd, c_finish_omp_declare_simd,
        c_parser_omp_declare_target, c_parser_omp_end_declare_target,
        c_parser_omp_declare_reduction, c_parser_omp_declare): New functions.
        (c_parser_omp_construct): Add p_name and mask vars.  Handle
        PRAGMA_OMP_DISTRIBUTE, PRAGMA_OMP_SIMD, PRAGMA_OMP_TASKGROUP,
        PRAGMA_OMP_TEAMS.  Adjust c_parser_omp_for, c_parser_omp_parallel
        and c_parser_omp_sections callers.
        (c_parse_file): Initialize tparser.tokens and the_parser->tokens here.
        (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
        OMP_SINGLE_CLAUSE_MASK): Use OMP_CLAUSE_MASK_1 instead of 1.
        (OMP_PARALLEL_CLAUSE_MASK): Likewise.  Add OMP_CLAUSE_PROC_BIND.
        (OMP_TASK_CLAUSE_MASK): Use OMP_CLAUSE_MASK_1 instead of 1.  Add
        OMP_CLAUSE_DEPEND.
        (OMP_SIMD_CLAUSE_MASK, OMP_CANCEL_CLAUSE_MASK,
        OMP_CANCELLATION_POINT_CLAUSE_MASK, OMP_DISTRIBUTE_CLAUSE_MASK,
        OMP_TEAMS_CLAUSE_MASK, OMP_TARGET_DATA_CLAUSE_MASK,
        OMP_TARGET_UPDATE_CLAUSE_MASK, OMP_TARGET_CLAUSE_MASK,
        OMP_DECLARE_SIMD_CLAUSE_MASK): Define.
        * c-typeck.c: Include tree-inline.h.
        (c_finish_omp_cancel, c_finish_omp_cancellation_point,
        handle_omp_array_sections_1, handle_omp_array_sections,
        c_clone_omp_udr, c_find_omp_placeholder_r): New functions.
        (c_finish_omp_clauses): Handle new OpenMP 4.0 clauses and
        user defined reductions.
        (c_tree_equal): New function.
        * c-tree.h (temp_store_parm_decls, temp_pop_parm_decls,
        c_finish_omp_cancel, c_finish_omp_cancellation_point, c_tree_equal,
        c_omp_reduction_id, c_omp_reduction_decl, c_omp_reduction_lookup,
        c_check_omp_declare_reduction_r): New prototypes.
        * c-decl.c (current_omp_declare_target_attribute): New variable.
        (c_decl_attributes): New function.
        (start_decl, start_function): Use it instead of decl_attributes.
        (temp_store_parm_decls, temp_pop_parm_decls, c_omp_reduction_id,
        c_omp_reduction_decl, c_omp_reduction_lookup,
        c_check_omp_declare_reduction_r): New functions.

2013-09-25  Tom Tromey  <tromey@redhat.com>

        * Make-lang.in (c/gccspec.o): Remove.
        (CFLAGS-c/gccspec.o): New variable.
        (cc1-checksum.o, C_TREE_H, c/c-aux-info.o, c/c-convert.o)
        (c/c-decl.o, c/c-errors.o, c/c-lang.o, c/c-objc-common.o)
        (c/c-parser.o, c/c-typeck.o, c/c-array-notation.o): Remove.

2013-09-25  Tom Tromey  <tromey@redhat.com>

        * Make-lang.in (c/gccspec.o): Don't use subshell.

2013-09-18  Marek Polacek  <polacek@redhat.com>

        PR sanitize/58443
        * c-typeck.c (build_binary_op): Properly honor -fsanitize options.
        Remove unnecessary check.

2013-09-18  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/58411
        * c-typeck.c (build_binary_op): Don't sanitize function if it has the
        no_sanitize_undefined attribute.

2013-09-13  Kai Tietz  <ktietz@redhat.com>

        PR target/57848
        * c-decl.c (c_builtin_function_ext_scope): Remove
        wrong assumption that it is never called on prexisting
        symbol.

2013-09-08  Joern Rennecke  <joern.rennecke@embecosm.com>

        * c-typeck.c (build_binary_op): Use vector_types_compatible_elements_p.

2013-09-03  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * c-objc-common.c (c_tree_printer): Tidy.

2013-08-30  Marek Polacek  <polacek@redhat.com>

        * c-typeck.c (build_binary_op): Add division by zero and shift
        instrumentation.

2013-08-26  Joern Rennecke  <joern.rennecke@embecosm.com>
            Joseph Myers  <joseph@codesourcery.com>

        PR c/35649
        * c-typeck.c (c_common_type): Prefer double_type_node over
        other REAL_TYPE types with the same precision.
        (convert_arguments): Likewise.

2013-08-23  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * c-objc-common.c (c_tree_printer): Document the nature of the cast.
        (c_initialize_diagnostics): Call a destructor for the early printer.

2013-08-22  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * c-objc-common.c (c_initialize_diagnostics): Simplify C pretty
        printer initialization.

2013-08-19  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        PR c/57490
        * c-array-notation.c (fix_conditional_array_notations_1): Added a
        check for truth values.
        (expand_array_notation_exprs): Added truth values case.  Removed an
        unwanted else.  Added for-loop to walk through subtrees in default
        case.

2013-08-04  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * c-objc-common.c (c_initialize_diagnostics): Don't call pp_base.

2013-07-23  Joseph Myers  <joseph@codesourcery.com>

        * c-parser.c (struct c_generic_association): Fix typo.

2013-07-23  Tom Tromey  <tromey@redhat.com>
            Joseph Myers  <joseph@codesourcery.com>

        * c-parser.c (struct c_generic_association): New.
        (c_generic_association_d): New typedef.
        (c_parser_generic_selection): New function.
        (c_parser_postfix_expression): Handle RID_GENERIC.

2013-07-13  Jason Merrill  <jason@redhat.com>

        PR c++/57793
        * c-decl.c (finish_struct): Check for too-large class.

2013-07-04  Joern Rennecke  <joern.rennecke@embecosm.com>

        PR c/57821
        * c-typeck.c (set_init_index): When folding, check for index overflow.

2013-06-28  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        * c-parser.c (c_parser_array_notation): Removed rejection of array
        notations in an array of function pointers.

2013-06-21  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        * c-array-notation.c (make_triplet_val_inv): New function.
        (create_cmp_incr): Likewise.
        (create_array_refs): Likewise.
        (fix_builtin_array_notation_fn): Replaced all mallocs with tree vec.
        Also modularized common parts between functions and called the function.
        (build_array_notation_expr): Likewise.
        (fix_conditional_array_notations_1): Likewise.
        (fix_array_notation_expr): Likewise.
        (fix_array_notation_call_expr): Likewise.

2013-06-18  Marek Polacek  <polacek@redhat.com>

        PR c/57630
        * c-decl.c (check_for_loop_decls): Improve diagnostics messages.

2013-06-12  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        * c-array-notation.c (build_array_notation_expr): Reject array notation
        mismatch between LHS and RHS even inside a call_expr.  Also, removed
        a couple while statements that were dead code.

2013-06-10  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        * c-array-notation.c (fix_builtin_array_notation_fn): Fully folded
        excessive precision expressions in function parameters.  Also removed
        couple unwanted while statements.

2013-06-07  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        * c-array-notation.c (expand_array_notation_exprs): Added
        ARRAY_NOTATION_REF case.

2013-06-07  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        * c-array-notation.c (length_mismatch_in_expr_p): Moved this
        function to c-family/array-notation-common.c.
        (is_cilkplus_reduce_builtin): Likewise.
        (find_rank): Likewise.
        (extract_array_notation_exprs): Likewise.
        (replace_array_notations): Likewise.
        (find_inv_trees): Likewise.
        (replace_inv_trees): Likewise.
        (contains_array_notation_expr): Likewise.
        (find_correct_array_notation_type): Likewise.
        (replace_invariant_exprs): Initialized additional_tcodes to NULL.
        (struct inv_list): Moved this to c-family/array-notation-common.c.
        * c-tree.h (is_cilkplus_builtin_reduce): Remove prototype.

2013-06-05  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        * c-typeck.c (convert_arguments): Moved checking of builtin cilkplus
        reduction functions outside the for-loop.  Added a check if the fundecl
        is non-NULL.  Finally, removed an unwanted if-statement, and made the
        body unconditional.

2013-06-03  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        * c-typeck.c (c_finish_if_stmt): Added a check to see if the rank of the
        condition of the if-statement matches the rank of else-block and then-
        block when array notations are used.
        * c-parser.c (c_parser_declaration_or_fndef): Expanded array notation
        expression after the entire function body is parsed.
        (c_parser_expr_no_commas): Delayed creating array notation expressions
        to the end of function parsing.
        * c-array-notation.c (fix_conditional_array_notations_1): Expanded the
        whole if-statement instead of just the condition.
        (expand_array_notation_exprs): Added MODIFY_EXPR case.

2013-06-03  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        PR c/57474
        * c-array-notation.c (build_array_notation_expr): Initialized rhs_length
        array to NULL_TREE if they are unused.  Also added a check for the
        field to be NULL before its fields are used in future.

2013-05-29  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR bootstrap/57450
        * c-array-notation.c (length_mismatch_in_expr_p): Use absu_hwi.
        (build_array_notation_expr): Likewise.

2013-05-28  Balaji V. Iyer  <balaji.v.iyer@intel.com>

        * c-typeck.c (build_array_ref): Added a check to see if array's
        index is greater than one.  If true, then emit an error.
        (build_function_call_vec): Exclude error reporting and checking
        for builtin array-notation functions.
        (convert_arguments): Likewise.
        (c_finish_return): Added a check for array notations as a return
        expression.  If true, then emit an error.
        (c_finish_loop): Added a check for array notations in a loop
        condition.  If true then emit an error.
        (lvalue_p): Added a ARRAY_NOTATION_REF case.
        (build_binary_op): Added a check for array notation expr inside
        op1 and op0.  If present, we call another function to find correct
        type.
        * Make-lang.in (C_AND_OBJC_OBJS): Added c-array-notation.o.
        * c-parser.c (c_parser_compound_statement): Check if array
        notation code is used in tree, if so, then transform them into
        appropriate C code.
        (c_parser_expr_no_commas): Check if array notation is used in LHS
        or RHS, if so, then build array notation expression instead of
        regular modify.
        (c_parser_postfix_expression_after_primary): Added a check for
        colon(s) after square braces, if so then handle it like an array
        notation.  Also, break up array notations in unary op if found.
        (c_parser_direct_declarator_inner): Added a check for array
        notation.
        (c_parser_compound_statement): Added a check for array notation in
        a stmt.  If one is present, then expand array notation expr.
        (c_parser_if_statement): Likewise.
        (c_parser_switch_statement): Added a check for array notations in
        a switch statement's condition.  If true, then output an error.
        (c_parser_while_statement): Similarly, but for a while.
        (c_parser_do_statement): Similarly, but for a do-while.
        (c_parser_for_statement): Similarly, but for a for-loop.
        (c_parser_unary_expression): Check if array notation is used in a
        pre-increment or pre-decrement expression.  If true, then expand
        them.
        (c_parser_array_notation): New function.
        * c-array-notation.c: New file.
        * c-tree.h (is_cilkplus_reduce_builtin): Protoize.

2013-05-23  Mike Stump  <mikestump@comcast.net>

        * c-typeck.c (convert_for_assignment): Handle references to memory
        spaces better.

2013-05-16  Jason Merrill  <jason@redhat.com>

        * Make-lang.in (cc1$(exeext)): Use link mutex.

2013-04-24  Paolo Carlini  <paolo.carlini@oracle.com>

        * c-typeck.c (pointer_diff): Change -Wpointer-arith pedwarns
        to simply use OPT_Wpointer_arith.
        (build_unary_op): Likewise.

2013-04-03  Jakub Jelinek  <jakub@redhat.com>

        PR c/19449
        * c-parser.c (c_parser_get_builtin_args): Add choose_expr_p
        argument.  If set, or it temporarily for parsing of the first
        argument into force_folding_builtin_constant_p.
        (c_parser_postfix_expression): Adjust callers.

2013-03-21  Richard Biener  <rguenther@suse.de>

        * c-objc-common.c (c_tree_printer): Use DECL_HAS_DEBUG_EXPR_P
        instead of DECL_DEBUG_EXPR_IS_FROM.  Guard properly.

2013-02-12  Marek Polacek  <polacek@redhat.com>

        PR c/44938
        * c-parser.c (c_parser_postfix_expression_after_primary): Initialize
        origtypes to NULL.

2013-01-24  Jakub Jelinek  <jakub@redhat.com>

        PR c/56078
        * c-typeck.c (set_nonincremental_init_from_string): If
        constructor_max_index is NULL, treat it as if tree_int_cst_lt
        returned false.
        (process_init_element): Likewise.

2012-12-20  Jakub Jelinek  <jakub@redhat.com>

        PR c++/55619
        * c-parser.c (c_parser_asm_operands): Remove CONVERT_P
        argument, don't call default_function_array_conversion
        nor c_fully_fold here.
        (c_parser_asm_statement): Adjust callers.
        * c-typeck.c (build_asm_expr): Call c_fully_fold on inputs
        and outputs here, and call default_function_array_conversion
        on inputs that don't need to be addressable.

2012-12-18  Jakub Jelinek  <jakub@redhat.com>

        PR c/39464
        * c-typeck.c (convert_for_assignment): For -Wpointer-sign
        warning require that both c_common_unsigned_type as well as
        c_common_signed_type is the same for both mvl and mvr types.

2012-11-16  Diego Novillo  <dnovillo@google.com>

        Adjust for new vec API (http://gcc.gnu.org/wiki/cxx-conversion/cxx-vec)

        * c-common.c: Use new vec API in vec.h.
        * c-common.h: Likewise.
        * c-gimplify.c: Likewise.
        * c-pragma.c: Likewise.
        * c-pretty-print.c: Likewise.
        * c-pretty-print.h: Likewise.
        * c-semantics.c: Likewise.
        * c-decl.c: Likewise.
        * c-parser.c: Likewise.
        * c-tree.h: Likewise.
        * c-typeck.c: Likewise.

2012-10-29  Jonathan Wakely  <jwakely.gcc@gmail.com>

        PR c++/54930
        * c-typeck.c (c_finish_return): Use OPT_Wreturn_local_addr.

2012-10-29  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c/53066
        * c-decl.c (warn_if_shadowing): Do not warn if a variable
        shadows a function, unless the variable is a function or a
        pointer-to-function.

2012-10-12  Jakub Jelinek  <jakub@redhat.com>

        PR c/54381
        * c-parser.c (struct c_tree_loc_pair): Removed.
        (c_parser_expr_list): Remove struct c_tree_loc_pair * argument,
        add location_t * and tree * arguments, fill in array of 3
        sizeof_arg trees and corresponding locs.
        (c_parser_attributes, c_parser_objc_keywordexpr): Adjust
        c_parser_expr_list callers.
        (c_parser_postfix_expression_after_primary): Likewise.  Pass
        array of 3 sizeof_arg trees and locs (corresponding to first
        3 arguments) to sizeof_pointer_memaccess_warning.

2012-10-09  Lawrence Crowl  <crowl@google.com>

        * Make-lang.in (c-decl.o): Add dependence on hash-table.h.
        * c-decl.c (detect_field_duplicates_hash): Change to new type-safe
        hash table.

2012-10-09  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/54194
        * c-typeck.c (parser_build_binary_op): Update warn_about_parentheses
        call.

2012-10-09  Marc Glisse  <marc.glisse@inria.fr>

        PR c++/54427
        * c-typeck.c: Include c-common.h.
        (enum stv_conv): Moved to c-common.h.
        (scalar_to_vector): Moved to c-common.c.
        (build_binary_op): Adapt to scalar_to_vector's new prototype.
        * Make-lang.in: c-typeck.c depends on c-common.h.

2012-10-04  Arnaud Charlet  <charlet@adacore.com>

        * c-decl.c (c_write_global_declarations): Fix handling of
        -fdump-ada-spec*.

2012-09-30  Sharad Singhai  <singhai@google.com>

        * c-decl.c (c_write_global_declarations): Use a different method
        to determine if the dump has ben initialized.

2012-09-14  Joseph Myers  <joseph@codesourcery.com>

        PR c/54552
        * c-typeck.c (c_cast_expr): When casting to a type requiring
        C_MAYBE_CONST_EXPR to be created, pass the inner expression to
        c_fully_fold first.

2012-09-14  Joseph Myers  <joseph@codesourcery.com>

        PR c/54103
        * c-typeck.c (build_unary_op): Pass original argument of
        TRUTH_NOT_EXPR to c_objc_common_truthvalue_conversion, then remove
        any C_MAYBE_CONST_EXPR, if it has integer operands.
        (build_binary_op): Pass original arguments of TRUTH_ANDIF_EXPR,
        TRUTH_ORIF_EXPR, TRUTH_AND_EXPR, TRUTH_OR_EXPR and TRUTH_XOR_EXPR
        to c_objc_common_truthvalue_conversion, then remove any
        C_MAYBE_CONST_EXPR, if they have integer operands.  Use
        c_objc_common_truthvalue_conversion not
        c_common_truthvalue_conversion.
        (c_objc_common_truthvalue_conversion): Build NE_EXPR directly and
        call note_integer_operands for arguments with integer operands
        that are not integer constants.

2012-09-13  Jakub Jelinek  <jakub@redhat.com>

        PR c/54559
        * c-typeck.c (c_finish_return): Do convert to BOOLEAN_TYPE or
        COMPLEX_TYPE with in_late_binary_op set temporarily to true.

2012-08-31  Jakub Jelinek  <jakub@redhat.com>

        PR c/54428
        * c-convert.c (convert): Don't call fold_convert_loc if
        TYPE_MAIN_VARIANT of a COMPLEX_TYPE is the same, unless e
        is a COMPLEX_EXPR.  Remove TYPE_MAIN_VARIANT check from
        COMPLEX_TYPE -> COMPLEX_TYPE conversion.

2012-08-24  Jakub Jelinek  <jakub@redhat.com>

        PR c/54355
        * c-decl.c (c_parser_label): Pass true as nested and fix up comments
        for nested and empty_ok arguments in the call to
        c_parser_declaration_or_fndef.

2012-08-17  Jakub Jelinek  <jakub@redhat.com>

        * c-tree.h (c_last_sizeof_arg): Declare.
        * c-parser.c (struct c_tree_loc_pair): New type.
        (c_parser_expr_list): Add sizeof_arg argument.  Fill it in if
        non-NULL.
        (c_parser_attributes, c_parser_objc_keywordexpr): Adjust callers.
        (c_parser_postfix_expression_after_primary): Likewise.  Call
        sizeof_pointer_memaccess_warning if needed.
        (sizeof_ptr_memacc_comptypes): New function.
        * c-typeck.c (c_last_sizeof_arg): New global variable.
        (c_expr_sizeof_expr, c_expr_sizeof_type): Initialize it.

2012-07-24  Uros Bizjak  <ubizjak@gmail.com>

        * c-lang.h (lang_decl): Add variable_size GTY option.

2012-07-16  Steven Bosscher  <steven@gcc.gnu.org>

        * c-decl.c: Include dumpfile.h instead of tree-dump.h.
        * Make-lang.in: Fix dependencies.

2012-06-29  Steven Bosscher  <steven@gcc.gnu.org>

        * Make-lang.in: New file, rules migrated from gcc/Makefile.in
        and add language Makefile hooks.
        * config-lang.in: New file.
        * c-config-lang.in: Moved from gcc/config-lang.in to here, and
        add the required "normal" config-lang.in rules.
        * c-lang.h: Moved from gcc/ to here.
        * c-tree.h: Likewise.
        * c-objc-common.c: Likewise.
        * c-objc-common.h: Likewise.
        * c-typeck.c: Likewise.
        * c-convert.c: Likewise.
        * c-lang.c: Likewise.
        * c-aux-info.c: Likewise.
        * c-errors.c: Likewise.
        * gccspec.c: Likewise.
        * c-decl.c: Likewise.  Include gt-c-c-decl.h, not gt-c-decl.h.
        * c-parser.c: Likewise.  Include gt-c-c-parser.h, not gt-c-parser.h.
\f
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