segher [Fri, 31 Aug 2018 08:52:13 +0000 (08:52 +0000)]
rs6000: Make lround<mode>di2 depend on TARGET_FPRND (PR86684)
TARGET_FPRND should be on for everything ISA 2.04 and later, and
TARGET_VSX implies ISA 2.06 or later; but it is possible to disable
TARGET_FPRND (separately via -mno-fprnd, but also implicitly)
currently, and then things fall down. This patch makes things not
fall down.
PR target/86684
PR target/87149
* config/rs6000/rs6000.md (lround<mode>di2): Gate on TARGET_FPRND.
pault [Fri, 31 Aug 2018 06:51:31 +0000 (06:51 +0000)]
2018-08-31 Paul Thomas <pault@gcc.gnu.org>
PR fortran/86328
PR fortran/86760
* trans-array.c (gfc_conv_scalarized_array_ref): Do not fix
info->descriptor but pass it directly to gfc_build_array_ref.
(gfc_conv_array_ref): Likewise for se->expr.
* trans.c (gfc_build_array_ref): If 'decl' is a COMPONENT_REF
obtain the span field directly from it.
2018-08-31 Paul Thomas <pault@gcc.gnu.org>
PR fortran/86328
PR fortran/86760
* gfortran.dg/pr86328.f90 : New test.
in comment 12 of the PR.
* gfortran.dg/pr86760.f90 : New test.
gcc/
* target.def (custom_function_descriptors): Improve documentation.
* doc/tm.texi.in (Trampolines): Expand discussion of function
descriptors and move TARGET_CUSTOM_FUNCTION_DESCRIPTORS to the
beginning of the section.
* doc/tm.texi: Regenerated.
jemarch [Thu, 30 Aug 2018 20:28:31 +0000 (20:28 +0000)]
gcc:
2018-08-30 Jose E. Marchesi <jose.marchesi@oracle.com>
* cfg.h (class auto_edge_flag): Spell out the template-id of the
base class in the initializer list. This is a workaround for
building with older GCC.
(class auto_bb_flag): Likewise.
hjl [Thu, 30 Aug 2018 15:59:41 +0000 (15:59 +0000)]
x86: Move AESNI generation to Skylake and Goldmont
The instruction set first appeared with Westmere, but not all processors
in that and the next few generations have the instructions. According to
Wikipedia[1], the first generation in which all SKUs have AES
instructions are Skylake and Goldmont. I can't find any Skylake,
Kabylake, Kabylake-R or Cannon Lake currently listed at
https://ark.intel.com that says "Intel® AES New Instructions" "No".
redi [Thu, 30 Aug 2018 15:07:35 +0000 (15:07 +0000)]
Avoid undefined shifts in ceil2 operations
For values where the result cannot be represented the shift width would
be equal to the width of the type, which is undefined. Perform two
well-defined shifts instead of one possible undefined shift.
* include/bits/hashtable_policy.h (__clp2): Fix calculation for LLP64
targets where sizeof(size_t) > sizeof(long). Avoid undefined shifts
of the number of bits in the type.
* include/std/bit (__ceil2): Avoid undefined shifts.
* testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Test values with
the most signifiant bit set.
hubicka [Thu, 30 Aug 2018 15:05:38 +0000 (15:05 +0000)]
* lto-streamer-out.c (DFS::DFS_write_tree_body): Do not follow
TYPE_STUB_DECL.
(hash_tree): Do not visit TYPE_STUB_DECL.
* tree-streamer-out.c (write_ts_type_common_tree_pointers): Do not
stream TYPE_STUB_DECL.
* tree-streamer-in.c (lto_input_ts_type_common_tree_pointers): Likewise.
* ipa-utils.h (type_with_linkage_p): Do not rely on TYPE_STUB_DECL
after free_lang_data.
(type_in_anonymous_namespace_p): Likewise.
hubicka [Thu, 30 Aug 2018 12:58:42 +0000 (12:58 +0000)]
* sreal.h (SREAL_PART_BITS): Change to 31; remove seemingly unnecessary
comment that it has to be even number.
(class sreal): Change m_sig type to int32_t.
* sreal.c (sreal::dump, sreal::to_int, opreator+, operator-): Use
int64_t for temporary calculations.
(sreal_verify_basics): Drop one bit from minimum and maximum.
rguenth [Thu, 30 Aug 2018 12:37:10 +0000 (12:37 +0000)]
2018-08-30 Richard Biener <rguenther@suse.de>
PR tree-optimization/87147
* tree-ssa-sccvn.c (SSA_VISITED): New function.
(visit_phi): When the degenerate result is from the backedge and
we didn't visit its definition yet drop to VARYING.
(do_rpo_vn): Properly mark blocks with incoming backedges as executable.
redi [Thu, 30 Aug 2018 12:24:06 +0000 (12:24 +0000)]
Fix __gnu_cxx::_Pointer_adapter for long long arithmetic
* include/ext/pointer.h (_Pointer_adapter): Define operators for
pointer arithmetic using long long offsets.
* testsuite/ext/ext_pointer/1.cc: Test pointer arithmetic using
long long values.
tnfchris [Thu, 30 Aug 2018 10:40:07 +0000 (10:40 +0000)]
Limit movmem copies to TImode on AArch64
On AArch64 we have integer modes larger than TImode, and while we can generate
moves for these they're not as efficient.
So instead make sure we limit the maximum we can copy to TImode. This means
copying a 16 byte struct will issue 1 TImode copy, which will be done using a
single STP as we expect but an CImode sized copy won't issue CImode operations.
I am also moving the residual code inside the if since smallest_mode_for_int may
trap if the mode doesn't exist. And the only time we know the mode to exist for
sure is when the condition of the if is true. This also saves repeated calls to
the iterator.
gcc/
2018-08-30 Tamar Christina <tamar.christina@arm.com>
* config/aarch64/aarch64.c (aarch64_expand_movmem): Set TImode max.
gcc/testsuite/
2018-08-30 Tamar Christina <tamar.christina@arm.com>
jakub [Wed, 29 Aug 2018 21:43:18 +0000 (21:43 +0000)]
PR c++/87095
* decl.c (begin_destructor_body): If current_class_type has
virtual bases and the primary base is nearly empty virtual base,
voidify clearing of vptr and make it conditional on in-charge
argument.
law [Wed, 29 Aug 2018 17:17:08 +0000 (17:17 +0000)]
PR tree-optimization/86714
PR tree-optimization/86711
* builtins.c (c_strlen): Add arguments to call to string_constant.
* expr.c (string_constant): Add argument. Detect missing nul
terminator and outermost declaration it's missing in.
* expr.h (string_constant): Add argument.
* fold-const.c (read_from_constant_string): Add arguments to call to
string_constant.
(c_getstr): Likewise.
* tree-ssa-forwprop.c (simplify_builtin_call): Likewise.
to string_constant.
* tree-ssa-strlen.c (get_stridx): Likewise.
PR tree-optimization/86714
PR tree-optimization/86711
* gcc.c-torture/execute/memchr-1.c: New test.
* gcc.c-torture/execute/pr86714.c: New test.
* gcc.c-torture/execute/widechar-3.c: New test.
* gcc.dg/strlenopt-58.c: New test.
hubicka [Wed, 29 Aug 2018 17:07:35 +0000 (17:07 +0000)]
* tree-streamer-in.c (lto_input_ts_function_decl_tree_pointers):
Do not stream DECL_VINDEX.
* tree-streamer-out.c (write_ts_function_decl_tree_pointers): Likewise.
* tree.c (free_lang_data_in_decl): Clear DECL_VINDEX.
(decl_function_context): Use DECL_VIRTUAL_P rather than DECL_VINDEX.
rguenth [Wed, 29 Aug 2018 15:02:06 +0000 (15:02 +0000)]
2018-08-29 Richard Biener <rguenther@suse.de>
* tree-ssa-sccvn.c (vuse_ssa_val): Return NULL for unvisited
virtual operands that are not default defs to honor region
boundaries.
(rpo_vn_valueize): Remove ineffective code here.
rguenth [Wed, 29 Aug 2018 14:12:25 +0000 (14:12 +0000)]
2018-08-29 Richard Biener <rguenther@suse.de>
* tree-core.h: Document use of deprecated_flag in SSA_NAME.
* tree.h (SSA_NAME_POINTS_TO_READONLY_MEMORY): Define.
* tree-into-ssa.c (pass_build_ssa::execute): Initialize
function parameters SSA_NAME_POINTS_TO_READONLY_MEMORY from fnspec.
* tree-ssa-sccvn.c (const_parms, init_const_parms): Remove.
(vn_reference_lookup_3): Remove use of const_parms.
(free_rpo_vn): Do not free const_parms.
(do_rpo_vn): Do not call init_const_parms.
* tree-ssa-alias.c (refs_may_alias_p_1): Honor
SSA_NAME_POINTS_TO_READONLY_MEMORY.
(call_may_clobber_ref_p_1): Likewise.
demo.cc: In function 'int test_4(int, const char*, float)':
demo.cc:5:44: error: no matching function for call to 's4::member_1(int&, const char*&, float&)'
5 | return s4::member_1 (first, second, third);
| ^
demo.cc:1:24: note: candidate: 'static int s4::member_1(int, const char**, float)'
1 | struct s4 { static int member_1 (int one, const char **two, float three); };
| ^~~~~~~~
demo.cc:1:24: note: no known conversion for argument 2 from 'const char*' to 'const char**'
With this patch, it highlights the pertinent parameter in the
"no known conversion" note:
demo.cc: In function 'int test_4(int, const char*, float)':
demo.cc:5:44: error: no matching function for call to 's4::member_1(int&, const char*&, float&)'
5 | return s4::member_1 (first, second, third);
| ^
demo.cc:1:24: note: candidate: 'static int s4::member_1(int, const char**, float)'
1 | struct s4 { static int member_1 (int one, const char **two, float three); };
| ^~~~~~~~
demo.cc:1:56: note: no known conversion for argument 2 from 'const char*' to 'const char**'
1 | struct s4 { static int member_1 (int one, const char **two, float three); };
| ~~~~~~~~~~~~~^~~
gcc/cp/ChangeLog:
PR c++/85110
* call.c (print_conversion_rejection): Add "fn" param and use it
for "no known conversion" messages to underline the pertinent
param.
(print_z_candidate): Supply "fn" to the new param above.
gcc/testsuite/ChangeLog:
PR c++/85110
* g++.dg/diagnostic/param-type-mismatch-2.C: Update expected
output to reflect underlining of pertinent parameter in decl
for "no known conversion" messages.
redi [Wed, 29 Aug 2018 10:05:55 +0000 (10:05 +0000)]
PR libstdc++/31413 fix test failure on Debian systems
Debian uses a different D_FMT string for the zh_TW.UTF-8 locale, which
caused this test to fail. Try to detect the Debian format and adjust
the input being tested.
PR libstdc++/31413
* testsuite/22_locale/time_get/get_date/wchar_t/4.cc: Check D_FMT
string for alternative format.
redi [Tue, 28 Aug 2018 15:33:53 +0000 (15:33 +0000)]
PR libstdc++/87116 fix path::lexically_normal() handling of dot-dot
Previously the logic that turned "a/b/c/../.." into "a/" failed to
preserve an empty path at the end of the iteration sequence, as required
by the trailing slash. That meant the result didn't meet the class
invariants, and that "a/b/c/d/../../.." would remove four components
instead of the three that "../../.." should remove.
PR libstdc++/87116
* src/filesystem/std-path.cc (path::lexically_normal): When handling
a dot-dot filename, preserve an empty final component in the iteration
sequence.
[_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use preferred-separator for
root-directory.
* testsuite/27_io/filesystem/path/generation/normal.cc: Add new tests
for more than two adjacent dot-dot filenames.
[_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Replace slashes with
preferred-separator in expected normalized strings.
dmalcolm [Tue, 28 Aug 2018 14:08:45 +0000 (14:08 +0000)]
Fix version check for ATTRIBUTE_GCC_DUMP_PRINTF
gcc/ChangeLog:
* dumpfile.h (ATTRIBUTE_GCC_DUMP_PRINTF): Change version check on
GCC_VERSION for usage of "__gcc_dump_printf__" format from
>= 3005 to >= 9000.
pault [Tue, 28 Aug 2018 11:35:52 +0000 (11:35 +0000)]
2017-08-28 Paul Thomas <pault@gcc.gnu.org>
PR fortran/80477
* trans-expr.c (gfc_conv_procedure_call): Allocatable class
scalar results being passed to a derived type formal argument
are finalized if possible. Otherwise, rely on existing code for
deallocation. Make the deallocation of allocatable result
components conditional on finalization not taking place. Make
the freeing of data components after finalization conditional
on the data being NULL.
(gfc_trans_arrayfunc_assign): Change the gcc_assert to a
condition to return NULL_TREE.
(gfc_trans_assignment_1): If the assignment is class to class
and the rhs expression must be finalized but the assignment
is not marked as a polymorphic assignment, use the vptr copy
function instead of gfc_trans_scalar_assign.
PR fortran/86481
* trans-expr.c (gfc_conv_expr_reference): Do not add the post
block to the pre block if the expression is to be finalized.
* trans-stmt.c (gfc_trans_allocate): If the expr3 must be
finalized, load the post block into a finalization block and
add it right at the end of the allocation block.
2017-08-28 Paul Thomas <pault@gcc.gnu.org>
PR fortran/80477
* gfortran.dg/class_result_7.f90: New test.
* gfortran.dg/class_result_8.f90: New test.
* gfortran.dg/class_result_9.f90: New test.
PR fortran/86481
* gfortran.dg/allocate_with_source_25.f90: New test.
jakub [Tue, 28 Aug 2018 11:13:04 +0000 (11:13 +0000)]
PR middle-end/87099
* calls.c (maybe_warn_nonstring_arg): Punt early if
warn_stringop_overflow is zero. Don't call get_range_strlen
on 3rd argument, keep iterating until lenrng[1] is INTEGER_CST.
Swap comparison operands to have constants on rhs. Only use
lenrng[1] if non-NULL and INTEGER_CST. Don't uselessly
increment lenrng[0].
rsandifo [Tue, 28 Aug 2018 10:42:42 +0000 (10:42 +0000)]
Fix unguarded use of tree_to_shwi in tree-ssa-sccvn.c
Fixes many testsuite failures for SVE.
2018-08-28 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* tree-ssa-sccvn.c (fully_constant_vn_reference_p): Fix unguarded
use of tree_to_shwi. Remove duplicated test for the size being
a whole number of bytes.
rguenth [Tue, 28 Aug 2018 10:14:45 +0000 (10:14 +0000)]
2018-08-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/87117
* tree-ssa-sccvn.c (fully_constant_vn_reference_p): Exclude
void which is is_gimple_reg_type by checking for COMPLETE_TYPE_P.
rguenth [Tue, 28 Aug 2018 10:13:18 +0000 (10:13 +0000)]
2018-08-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/87117
* tree-ssa-pre.c (compute_avail): Do not make expressions
with predicated values available.
(get_expr_value_id): Assert we do not run into predicated value
expressions.
rguenth [Tue, 28 Aug 2018 09:33:16 +0000 (09:33 +0000)]
2018-08-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/87117
* tree-ssa-operands.c (add_stmt_operand): STRING_CST may
get virtual operands.
(get_expr_operands): Handle STRING_CST like other decls.
jakub [Mon, 27 Aug 2018 18:36:23 +0000 (18:36 +0000)]
PR c++/86993
* cp-tree.h (cxx_readonly_error): Add location_t argument.
* typeck2.c (cxx_readonly_error): Add LOC argument, pass it to
ERROR_FOR_ASSIGNMENT macro and readonly_error. Add LOC argument
to ERROR_FOR_ASSIGNMENT macro, use error_at instead of error and
pass LOC to it. Formatting fixes.
* typeck.c (cp_build_unary_op): Pass location to cxx_readonly_error.
(cp_build_modify_expr): Pass loc to cxx_readonly_error.
* semantics.c (finish_asm_stmt): Pass input_location to
cxx_readonly_error.
dmalcolm [Mon, 27 Aug 2018 14:02:05 +0000 (14:02 +0000)]
Less verbose fix-it hints for missing header files (PR 87091)
This patch tweaks maybe_add_include_fixit so that if we're emitting a note
about adding the header file, the note's primary location will be replaced
by that of the fix-it hint, to avoid repeating a location we've already
emitted (or one close to it).
eliminating the repetition of line 87 in the note.
Doing so requires converting show_caret_p to a tri-state, to avoid
meaninglessly printing a caret for the first column in the next line
(and colorizing it):
gcc/c-family/ChangeLog:
PR 87091
* c-common.c (c_cpp_error): Update for conversion of show_caret_p
to a tri-state.
(maybe_suggest_missing_token_insertion): Likewise.
(maybe_add_include_fixit): Add param "override_location". If set,
and source-printing is enabled, then override the rich_location's
primary location with that of the insertion point for the fix-it
hint, marking it with SHOW_LINES_WITHOUT_RANGE.
* c-common.h (extern void maybe_add_include_fixit): Add bool
param.
* c-format.c (selftest::test_type_mismatch_range_labels): Update
for conversion of show_caret_p to a tri-state.
* c-warn.c (warn_for_restrict): Likewise.
* known-headers.cc
(suggest_missing_header::~suggest_missing_header): Update call to
maybe_add_include_fixit to suggest overriding the location, as it
is for a note.
gcc/c/ChangeLog:
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.
gcc/cp/ChangeLog:
PR 87091
* decl.c (grokdeclarator): Update for conversion of show_caret_p
to a tri-state.
* error.c (cp_printer): Likewise.
* name-lookup.c (maybe_suggest_missing_std_header): Update call to
maybe_add_include_fixit to suggest overriding the location, as it
is for a note.
* parser.c (cp_parser_string_literal): Update for conversion of
show_caret_p to a tri-state.
(cp_parser_elaborated_type_specifier): Likewise.
(set_and_check_decl_spec_loc): Likewise.
* pt.c (listify): Update call to maybe_add_include_fixit to not
override the location, as it is for an error.
* rtti.c (typeid_ok_p): Likewise.
gcc/ChangeLog:
PR 87091
* diagnostic-show-locus.c (class layout_range): Update for
conversion of show_caret_p to a tri-state.
(layout_range::layout_range): Likewise.
(make_range): Likewise.
(layout::maybe_add_location_range): Likewise.
(layout::should_print_annotation_line_p): Don't show annotation
lines for ranges that are SHOW_LINES_WITHOUT_RANGE.
(layout::get_state_at_point): Update for conversion of
show_caret_p to a tri-state. Bail out early for
SHOW_LINES_WITHOUT_RANGE, so that such ranges don't affect
underlining or source colorization.
(gcc_rich_location::add_location_if_nearby): Update for conversion
of show_caret_p to a tri-state.
(selftest::test_one_liner_multiple_carets_and_ranges): Likewise.
(selftest::test_one_liner_fixit_replace_equal_secondary_range):
Likewise.
(selftest::test_one_liner_labels): Likewise.
* gcc-rich-location.c (gcc_rich_location::add_expr): Update for
conversion of show_caret_p to a tri-state.
* pretty-print.c (text_info::set_location): Likewise.
* pretty-print.h (text_info::set_location): Likewise.
* substring-locations.c (format_warning_n_va): Likewise.
* tree-diagnostic.c (default_tree_printer): Likewise.
* tree-pretty-print.c (newline_and_indent): Likewise.
gcc/fortran/ChangeLog:
PR 87091
* error.c (gfc_format_decoder): Update for conversion of
show_caret_p to a tri-state.
gcc/testsuite/ChangeLog:
PR 87091
* gcc.dg/empty.h: New file.
* gcc.dg/fixits-pr84852-1.c: Update for move of fix-it hint to
top of file and removal of redundant second printing of warning
location.
* gcc.dg/fixits-pr84852-2.c: Likewise.
* gcc.dg/missing-header-fixit-3.c: Likewise.
* gcc.dg/missing-header-fixit-4.c: New test.
* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c: Update for
conversion of show_caret_p to a tri-state.
libcpp/ChangeLog:
PR 87091
* include/line-map.h (enum range_display_kind): New enum.
(struct location_range): Replace field "m_show_caret_p" with
"m_range_display_kind", converting from bool to the new enum.
(class rich_location): Add example of line insertion fix-it hint.
(rich_location::add_range): Convert param "show_caret_p" from bool
to enum range_display_kind and rename to "range_display_kind",
giving it a default of SHOW_RANGE_WITHOUT_CARET.
(rich_location::set_range): Likewise, albeit without a default.
* line-map.c (rich_location::rich_location): Update for conversion
of show_caret_p to tri-state enum.
(rich_location::add_range): Likewise.
(rich_location::set_range): Likewise.
dmalcolm [Mon, 27 Aug 2018 13:46:32 +0000 (13:46 +0000)]
diagnostics: show an extra line of context in line-insertion fix-it hints (PR 87091)
This patch tweaks how we print line-insertion fix-it hints, so that
the line before the insertion point is also printed, to give the user
more context on the proposed change.
gcc/ChangeLog:
PR 87091
* diagnostic-show-locus.c (get_line_span_for_fixit_hint): Show the
line above for line-insertion fix-it hints.
(selftest::test_fixit_insert_containing_newline): Update the
expected results, and add a test with line-numbering enabled.
gcc/testsuite/ChangeLog:
PR 87091
* g++.dg/pr85523.C: Extend expected output to show line
before line-insertion fix-it hint.
* gcc.dg/plugin/diagnostic-test-show-locus-bw-line-numbers.c
(test_fixit_insert_newline): Add previous line to expected output.
* gcc.dg/plugin/diagnostic-test-show-locus-bw.c: Likewise.
* gcc.dg/plugin/diagnostic-test-show-locus-color.c: Likewise.
* gcc-interface/decl.c (update_profile): Use new function
fndecl_built_in_p and remove check for FUNCTION_DECL if
possible.
* gcc-interface/gigi.h (call_is_atomic_load): Likewise.
* gcc-interface/utils.c (gnat_pushdecl): Likewise.
2018-08-27 Martin Liska <mliska@suse.cz>
* c-common.c (check_function_restrict): Use new function
fndecl_built_in_p and remove check for FUNCTION_DECL if
possible.
(check_builtin_function_arguments): Likewise.
(reject_gcc_builtin): Likewise.
* c-warn.c (sizeof_pointer_memaccess_warning): Likewise.
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.
2018-08-27 Martin Liska <mliska@suse.cz>
* call.c (build_call_a): Use new function
fndecl_built_in_p and remove check for FUNCTION_DECL if
possible.
(build_cxx_call): Likewise.
* constexpr.c (constexpr_fn_retval): Likewise.
(cxx_eval_builtin_function_call): Likewise.
(cxx_eval_call_expression): Likewise.
(potential_constant_expression_1): Likewise.
* cp-gimplify.c (cp_gimplify_expr): Likewise.
(cp_fold): Likewise.
* decl.c (decls_match): Likewise.
(validate_constexpr_redeclaration): Likewise.
(duplicate_decls): Likewise.
(make_rtl_for_nonlocal_decl): Likewise.
* name-lookup.c (consider_binding_level): Likewise.
(cp_emit_debug_info_for_using): Likewise.
* semantics.c (finish_call_expr): Likewise.
* tree.c (builtin_valid_in_constant_expr_p): Likewise.
2018-08-27 Martin Liska <mliska@suse.cz>
* go-gcc.cc (Gcc_backend::call_expression): Use new function
fndecl_built_in_p and remove check for FUNCTION_DECL if
possible.
2018-08-27 Martin Liska <mliska@suse.cz>
* lto-lang.c (handle_const_attribute): Use new function
fndecl_built_in_p and remove check for FUNCTION_DECL if
possible.
* lto-symtab.c (lto_symtab_merge_p): Likewise.
(lto_symtab_merge_decls_1): Likewise.
(lto_symtab_merge_symbols): Likewise.
* lto.c (lto_maybe_register_decl): Likewise.
(read_cgraph_and_symbols): Likewise.
marxin [Mon, 27 Aug 2018 12:21:11 +0000 (12:21 +0000)]
Improve switch code emission for a balanced tree (PR tree-optimization/86847).
2018-08-27 Martin Liska <mliska@suse.cz>
PR tree-optimization/86847
* tree-switch-conversion.c (switch_decision_tree::dump_case_nodes):
Dump also subtree probability.
(switch_decision_tree::do_jump_if_equal): New function.
(switch_decision_tree::emit_case_nodes): Handle special
situations in balanced tree that can be emitted much simpler.
Fix calculation of probabilities that happen in tree expansion.
* tree-switch-conversion.h (struct cluster): Add
is_single_value_p.
(struct simple_cluster): Likewise.
(struct case_tree_node): Add new function has_child.
(do_jump_if_equal): New.
2018-08-27 Martin Liska <mliska@suse.cz>
PR tree-optimization/86847
* gcc.dg/tree-ssa/switch-3.c: New test.
* gcc.dg/tree-ssa/vrp105.c: Remove.
marxin [Mon, 27 Aug 2018 12:18:24 +0000 (12:18 +0000)]
Fix probability for bit-tests.
2018-08-27 Martin Liska <mliska@suse.cz>
* tree-switch-conversion.c (bit_test_cluster::find_bit_tests):
Add new argument to bit_test_cluster constructor.
(bit_test_cluster::emit): Set bits really number of values
handlel by a test.
(bit_test_cluster::hoist_edge_and_branch_if_true): Add
probability argument.
* tree-switch-conversion.h (struct bit_test_cluster):
Add m_handles_entire_switch.
2018-08-27 Martin Liska <mliska@suse.cz>
marxin [Mon, 27 Aug 2018 12:17:54 +0000 (12:17 +0000)]
Fix probabilities for jump table (PR tree-optimization/86702).
2018-08-27 Martin Liska <mliska@suse.cz>
PR tree-optimization/86702
* tree-switch-conversion.c (jump_table_cluster::emit):
Make probabilities even for values in jump table
according to number of cases handled.
(switch_decision_tree::compute_cases_per_edge): Pass
argument to reset_out_edges_aux function.
(switch_decision_tree::analyze_switch_statement): Likewise.
* tree-switch-conversion.h (switch_decision_tree::reset_out_edges_aux):
Make it static.
rguenth [Mon, 27 Aug 2018 10:55:53 +0000 (10:55 +0000)]
2018-08-27 Richard Biener <rguenther@suse.de>
* cfganal.h (rev_post_order_and_mark_dfs_back_seme): Declare.
* cfganal.c (rev_post_order_and_mark_dfs_back_seme): New function.
* tree-ssa-sccvn.h (struct vn_pval): New structure.
(struct vn_nary_op_s): Add unwind_to member. Add
predicated_values flag and put result into a union together
with a linked list of vn_pval.
(struct vn_ssa_aux): Add name member to make maintaining
a map of SSA name to vn_ssa_aux possible. Remove no longer
needed info, dfsnum, low, visited, on_sccstack, use_processed
and range_info_anti_range_p members.
(run_scc_vn, vn_eliminate, free_scc_vn, vn_valueize): Remove.
(do_rpo_vn, run_rpo_vn, eliminate_with_rpo_vn, free_rpo_vn):
New functions.
(vn_valueize): New global.
(vn_context_bb): Likewise.
(VN_INFO_RANGE_INFO, VN_INFO_ANTI_RANGE_P, VN_INFO_RANGE_TYPE,
VN_INFO_PTR_INFO): Remove.
* tree-ssa-sccvn.c: ... (rewrite)
(pass_fre::execute): For -O2+ initialize loops and run
RPO VN in optimistic mode (iterating). For -O1 and -Og
run RPO VN in non-optimistic mode.
* params.def (PARAM_SCCVN_MAX_SCC_SIZE): Remove.
(PARAM_RPO_VN_MAX_LOOP_DEPTH): Add.
* doc/invoke.texi (sccvn-max-scc-size): Remove.
(rpo-vn-max-loop-depth): Document.
* tree-ssa-alias.c (walk_non_aliased_vuses): Stop walking
when valuezing the VUSE signals we walked out of the region.
* tree-ssa-pre.c (phi_translate_1): Ignore predicated values.
(phi_translate): Set VN context block to use for availability
lookup.
(compute_avail): Likewise.
(pre_valueize): New function.
(pass_pre::execute): Adjust to the RPO VN API.
* tree-ssa-loop-ivcanon.c: Include tree-ssa-sccvn.h.
(propagate_constants_for_unrolling): Remove.
(tree_unroll_loops_completely): Perform value-numbering
on the unrolled bodies loop parent.
marxin [Mon, 27 Aug 2018 08:01:14 +0000 (08:01 +0000)]
Print default options selection for -march,-mcpu and -mtune for aarch64 (PR driver/83193).
2018-08-27 Martin Liska <mliska@suse.cz>
PR driver/83193
* config/aarch64/aarch64.c (aarch64_override_options_internal):
Set default values for x_aarch64_*_string strings.
* config/aarch64/aarch64.opt: Remove --{march,mcpu,mtune}==
prefix. For -mabi do not print '=ABI' in help and use
<option_value> format for -msve-vector-bits and -moverride
options.
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