Sergey Shalnov [Tue, 21 Nov 2017 19:52:01 +0000 (19:52 +0000)]
i386-opts.h (enum prefer_vector_width): Added new enum for the new option -mprefer-vector-width=[none|128|256|512].
* config/i386/i386-opts.h (enum prefer_vector_width): Added new enum
for the new option -mprefer-vector-width=[none|128|256|512].
* config/i386/i386.c (ix86_target_string): remove old style options
-mprefer-avx256 and make -mprefer-avx128 as alias.
(ix86_option_override_internal): Apply defaults for the
-mprefer-vector-width=[128|256] option.
* config/i386/i386.h (TARGET_PREFER_AVX128, TARGET_PREFER_AVX256):
Implement macros to work with -mprefer-vector-width=.
* config/i386/i386.opt: Implemented option
-mprefer-vector-width=[none|128|256|512].
* doc/invoke.texi: Documentation for
-mprefer-vector-width=[none|128|256|512].
gcc/testsuite/
* g++.dg/ext/pr57362.C (__attribute__): Test
prefer-vector-width=[128|256] target attribute.
* gcc.target/i386/avx512f-constant-float-return.c (dg-optioins):
Use -mprefer-vector-width=256 instead of -mprefer-avx256.
* gcc.target/i386/avx512f-prefer.c: Ditto.
* gcc.target/i386/pr82460-2.c: Ditto.
Jakub Jelinek [Tue, 21 Nov 2017 17:40:34 +0000 (18:40 +0100)]
re PR c++/83045 (-Wreturn-type regression in C++)
PR c++/83045
* tree-cfg.c (pass_warn_function_return::execute): Formatting fix.
Also warn if seen __builtin_unreachable () call with BUILTINS_LOCATION.
Use LOCATION_LOCUS when comparing against UNKNOWN_LOCATION.
Jakub Jelinek [Tue, 21 Nov 2017 08:41:47 +0000 (09:41 +0100)]
re PR tree-optimization/83047 (glibc/crypt/crypt_util.c gets miscompiled)
PR tree-optimization/83047
* gimple-ssa-store-merging.c
(imm_store_chain_info::output_merged_store): If the loads with the
same vuse are in different basic blocks, for load_gsi pick a load
location that is dominated by the other loads.
Jakub Jelinek [Tue, 21 Nov 2017 08:39:57 +0000 (09:39 +0100)]
P0428R2 - familiar template syntax for generic lambdas
P0428R2 - familiar template syntax for generic lambdas
* parser.c (cp_parser_lambda_declarator_opt): Don't pedwarn
for cxx2a and above, reword pedwarn for C++14/C++17.
* g++.dg/cpp1y/lambda-generic-x.C: Adjust warnings and limit
to c++17_down target.
* g++.dg/cpp1y/lambda-generic-dep.C: Likewise.
* g++.dg/cpp1y/lambda-generic-77914.C: Adjust error and limit
to c++17_down target.
* g++.dg/cpp2a/lambda-generic1.C: New test.
* g++.dg/cpp2a/lambda-generic2.C: New test.
* g++.dg/cpp2a/lambda-generic3.C: New test.
* g++.dg/cpp2a/lambda-generic4.C: New test.
* g++.dg/cpp2a/lambda-generic5.C: New test.
Jakub Jelinek [Tue, 21 Nov 2017 07:59:03 +0000 (08:59 +0100)]
re PR debug/82718 (Bad DWARF5 .debug_loclists generation)
PR debug/82718
* dwarf2out.c (dw_loc_list): If crtl->has_bb_partition, temporarily
set in_cold_section_p to the partition containing loc_list->first.
When seeing loc_list->last_before_switch node, update secname and
perform range_across_switch second partition handling only after that.
* gcc.dg/debug/dwarf2/pr82718-1.c: New test.
* gcc.dg/debug/dwarf2/pr82718-2.c: New test.
Ian Lance Taylor [Tue, 21 Nov 2017 06:19:10 +0000 (06:19 +0000)]
libgo: fix makefile buglet
Fix a small bug in the libgo Makefile recipe that constructs the
directory from which to pick up libgcc_s.so ; the gccgo invocation
with -print-libgcc-file-name was missing the flags, which meant that
for -m32 builds we'd see the 64-bit libgcc dir.
David Malcolm [Tue, 21 Nov 2017 00:50:39 +0000 (00:50 +0000)]
C/C++: more stdlib header hints (PR c/81404)
This patch extends the C frontend's "knowledge" of the C stdlib within
get_c_name_hint to cover some more macros and functions, covering
a case reported in PR c/81404 ("INT_MAX"), so that rather than printing:
t.c:5:12: error: 'INT_MAX' undeclared here (not in a function); did you mean '__INT_MAX__'?
int test = INT_MAX;
^~~~~~~
__INT_MAX__
we instead print:
t.c:5:12: error: 'INT_MAX' undeclared here (not in a function)
int test = INT_MAX;
^~~~~~~
t.c:5:12: note: 'INT_MAX' is defined in header '<limits.h>'; did you forget to '#include <limits.h>'?
t.c:1:1:
+#include <limits.h>
t.c:5:12:
int test = INT_MAX;
^~~~~~~
It also adds generalizes some of the code for this (and for the "std::"
namespace hints in the C++ frontend), moving it to a new
c-family/known-headers.cc and .h, and introducing a class known_headers.
This currently just works by scanning a hardcoded array of known
name/header associations, but perhaps in the future could be turned
into some kind of symbol database so that the compiler could record API
uses and use that to offer suggestions e.g.
foo.cc: error: 'myapi::foo' was not declared in this scope
foo.cc: note: 'myapi::foo" was declared in header 'myapi/private.h'
(included via 'myapi/public.h') when compiling 'bar.cc'; did you forget to
'#include "myapi/public.h"'?
or somesuch.
In any case, moving this to a class gives an easier way to locate the
hardcoded knowledge about the stdlib.
The patch also adds similar code to the C++ frontend covering
unqualified names in the standard library, so that rather than just
e.g.:
t.cc:19:13: error: 'NULL' was not declared in this scope
void *ptr = NULL;
^~~~
we can emit:
t.cc:19:13: error: 'NULL' was not declared in this scope
void *ptr = NULL;
^~~~
t.cc:19:13: note: 'NULL' is defined in header '<cstddef>'; did you forget
to '#include <cstddef>'?
t.cc:1:1:
+#include <cstddef>
t.cc:19:13:
void *ptr = NULL;
^~~~
(Also XFAIL for PR c++/80567 added for the C++ testcase; this is a
separate pre-existing bug exposed by the testcase for PR 81404).
gcc/c-family/ChangeLog:
PR c/81404
* known-headers.cc: New file, based on material from c/c-decl.c.
(suggest_missing_header): Copied as-is.
(get_stdlib_header_for_name): New, based on get_c_name_hint but
heavily edited to add C++ support. Add some knowledge about
<limits.h>, <stdint.h>, and <wchar.h>.
* known-headers.h: Likewise.
gcc/c/ChangeLog:
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.
gcc/cp/ChangeLog:
PR c/81404
* name-lookup.c: Include "c-family/known-headers.h"
(lookup_name_fuzzy): Call get_cp_stdlib_header_for_name and
potentially return a new suggest_missing_header hint.
David Malcolm [Tue, 21 Nov 2017 00:46:24 +0000 (00:46 +0000)]
C: hints for missing stdlib includes for macros and types
The C frontend already "knows" about many common functions in
the C standard library:
test.c: In function 'test':
test.c:3:3: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
printf ("hello world\n");
^~~~~~
test.c:3:3: warning: incompatible implicit declaration of built-in function 'printf'
test.c:3:3: note: include '<stdio.h>' or provide a declaration of 'printf'
and which header file they are in.
However it doesn't know about various types and macros:
test.c:1:13: error: 'NULL' undeclared here (not in a function)
void *ptr = NULL;
^~~~
This patch uses the name_hint/deferred_diagnostic machinery to
add hints for missing C standard library headers for some of the
most common type and macro names.
For example, the above becomes:
test.c:1:13: error: 'NULL' undeclared here (not in a function)
void *ptr = NULL;
^~~~
test.c:1:13: note: 'NULL' is defined in header '<stddef.h>'; did you forget to '#include <stddef.h>'?
gcc/c/ChangeLog:
* 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.
gcc/testsuite/ChangeLog:
* gcc.dg/spellcheck-stdlib.c: New test case.
David Malcolm [Tue, 21 Nov 2017 00:40:53 +0000 (00:40 +0000)]
C++: provide macro used-before-defined hint (PR c++/72786)
This patch uses the name_hint/deferred_diagnostic to provide
a message in the C++ frontend if a macro is used before it is defined
e.g.:
test.c:6:24: error: expected ';' at end of member declaration
virtual void clone() const OVERRIDE { }
^~~~~
;
test.c:6:30: error: 'OVERRIDE' does not name a type
virtual void clone() const OVERRIDE { }
^~~~~~~~
test.c:6:30: note: the macro 'OVERRIDE' had not yet been defined
test.c:15:0: note: it was later defined here
#define OVERRIDE override
It's possible to do it from the C++ frontend as tokenization happens
up-front (and hence the macro already exists when the above is parsed);
I attempted to do it from the C frontend, but because the C frontend only
tokenizes on-demand during parsing, the macro isn't known about until
later.
gcc/cp/ChangeLog:
PR c++/72786
* name-lookup.c (class macro_use_before_def): New class.
(lookup_name_fuzzy): Detect macro that were used before being
defined, and report them as such.
gcc/ChangeLog:
PR c++/72786
* spellcheck.h (best_match::blithely_get_best_candidate): New
accessor.
gcc/testsuite/ChangeLog:
PR c++/72786
* g++.dg/spellcheck-macro-ordering-2.C: New test case.
* g++.dg/spellcheck-macro-ordering.C: Add dg-message directives
for macro used-before-defined.
libcpp/ChangeLog:
PR c++/72786
* include/cpplib.h (cpp_macro_definition_location): New decl.
* macro.c (cpp_macro_definition): New function.
Paul Thomas [Mon, 20 Nov 2017 19:09:34 +0000 (19:09 +0000)]
re PR fortran/79072 (ICE with class(*) pointer function result and character value)
2017-11-20 Paul Thomas <pault@gcc.gnu.org>
PR fortran/79072
* trans-expr.c (trans_class_vptr_len_assignment): Set from_len
if the temporary is unlimited polymorphic.
* trans-stmt.c (trans_associate_var): Use the fake result decl
to obtain the 'len' field from an explicit function result when
in that function scope.
2017-11-20 Paul Thomas <pault@gcc.gnu.org>
PR fortran/79072
* gfortran.dg/class_result_5.f90: New test.
Jakub Jelinek [Mon, 20 Nov 2017 18:58:01 +0000 (19:58 +0100)]
P0329R4: Designated Initialization
P0329R4: Designated Initialization
* parser.c (cp_parser_initializer_clause): List in comment grammar
designated-initializer-list.
(cp_parser_initializer_list): Allow .identifier = without pedwarn for
C++2A, parse .identifier { ... }. Improve location_t argument to
pedwarn. Add pedwarn for [cst] = designators. Diagnose ... in
designated initializer list. Diagnose mixing designated and
non-designated initializer clauses for C++2A. Diagnose duplicated
identifiers in designators.
* name-lookup.h (search_anon_aggr): New declaration.
* name-lookup.c (fields_linear_search): Use search_anon_aggr.
(search_anon_aggr): New function.
* typeck2.c (process_init_constructor_record): Allow designator
to skip over some non-static data members. Handle anonymous
aggregates. Add diagnostics for designator order not matching
member declaration order.
* g++.dg/ext/desig2.C: Adjust comment, no sorry about designator
refering to second member.
(b): New variable and associated expected diagnostic.
* g++.dg/ext/desig4.C: For C++2A expect diagnostics.
* g++.dg/ext/desig5.C: Add dg-do dg-compile and empty dg-options.
* g++.dg/ext/desig8.C: Likewise.
* g++.dg/ext/desig9.C: New test.
* g++.dg/ext/pr27019.C: Don't expect any diagnostics.
* g++.dg/init/error2.C: Adjust expected diagnostics.
* g++.dg/cpp0x/desig1.C: Add dg-options with -pedantic, expect
warning on C99 designators.
* g++.dg/cpp2a/desig1.C: New test.
* g++.dg/cpp2a/desig2.C: New test.
* g++.dg/cpp2a/desig3.C: New test.
* g++.dg/cpp2a/desig4.C: New test.
* g++.dg/cpp2a/desig5.C: New test.
* g++.dg/cpp2a/desig6.C: New test.
David Malcolm [Mon, 20 Nov 2017 18:37:05 +0000 (18:37 +0000)]
c-family: add name_hint/deferred_diagnostic
In various places we use lookup_name_fuzzy to provide a hint,
and can report messages of the form:
error: unknown foo named 'bar'
or:
error: unknown foo named 'bar'; did you mean 'SUGGESTION?
This patch provides a way for lookup_name_fuzzy to provide
both the suggestion above, and (optionally) additional hints
that can be printed e.g.
note: did you forget to include <SOME_HEADER.h>?
This patch provides the mechanism and ports existing users
of lookup_name_fuzzy to the new return type.
There are no uses of such hints in this patch, but followup
patches provide various front-end specific uses of this.
gcc/c-family/ChangeLog:
* c-common.h (enum lookup_name_fuzzy_kind): Move to name-hint.h.
(lookup_name_fuzzy): Likewise. Convert return type from
const char * to name_hint. Add location_t param.
* name-hint.h: New header.
gcc/c/ChangeLog:
* 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.
gcc/cp/ChangeLog:
* name-lookup.c: Define INCLUDE_UNIQUE_PTR before including system.h.
Include "c-family/name-hint.h"
(suggest_alternatives_for): Convert "fuzzy_name" from const char *
to name_hint, and rename to "hint". Pass location to
lookup_name_fuzzy.
(lookup_name_fuzzy): Convert return type from const char *
to name_hint. Add location_t param.
* parser.c: Define INCLUDE_UNIQUE_PTR before including system.h.
Include "c-family/name-hint.h"
(cp_parser_diagnose_invalid_type_name): Convert
"suggestion" from const char * to name_hint, and rename to "hint".
Pass location to lookup_name_fuzzy.
* Makefile.in (OBJS): Add gimple-ssa-evrp-analyze.o.
* gimple-ssa-evrp-analyze.c: New file pulled from gimple-ssa-evrp.c.
* gimple-ssa-evrp-analyze.h: New file pulled from gimple-ssa-evrp.c.
* gimple-ssa-evrp.c: Remove bits moved into new files. Include
gimple-ssa-evrp-analyze.h.
Bin Cheng [Mon, 20 Nov 2017 14:20:08 +0000 (14:20 +0000)]
tree-predcom.c: Add general comment on Store-Store chains.
* tree-predcom.c: Add general comment on Store-Store chains.
(split_data_refs_to_components): Postpone clearing eliminate_store_p
flag in component.
(get_chain_last_ref_at): Rename into...
(get_chain_last_write_at): ...this.
(get_chain_last_write_before_load): New function.
(add_ref_to_chain): Promote type of chain from CT_STORE_LOAD to
CT_STORE_STORE when write reference is added.
(determine_roots_comp): Support load ref in CT_STORE_STORE chains.
(is_inv_store_elimination_chain): Update get_chain_last_write_at call.
(initialize_root_vars_store_elim_1): Ditto.
(initialize_root_vars_store_elim_2): Ditto. Replace rhs once default
definition is created.
(execute_pred_commoning_chain): Support load ref in CT_STORE_STORE
chain by replacing it with dominant stored value.
gcc/testsuite
* gcc.dg/tree-ssa/predcom-dse-12.c: New test.
Jakub Jelinek [Mon, 20 Nov 2017 12:57:50 +0000 (13:57 +0100)]
re PR c++/82781 (Vector extension operators return wrong result in constexpr)
PR c++/82781
* constexpr.c (cxx_eval_vector_conditional_expression): New function.
(cxx_eval_constant_expression) <case VEC_COND_EXPR>: Use it instead
of cxx_eval_conditional_expression.
Expanders for Armv8-M nonsecure call unnecessarily clobber r4 despite
the libcall they perform not writing to r4. Furthermore, the
requirement for the branch target address to be in r4 as expected by
the libcall is modeled in a convoluted way in the define_insn patterns:
the address is a register match_operand constrained by the match_dup
for the clobber which is guaranteed to be r4 due to the expander.
This patch simplifies all this by simply requiring the address to be in
r4 and removing the clobbers. Expanders are left alone because
cmse_nonsecure_call_clear_caller_saved relies on branch target memory
attributes which would be lost if expanding to reg:SI R4_REGNUM.
2017-11-20 Thomas Preud'homme <thomas.preudhomme@arm.com>
Jakub Jelinek [Mon, 20 Nov 2017 10:10:23 +0000 (11:10 +0100)]
re PR tree-optimization/78821 (GCC7: Copying whole 32 bits structure field by field not optimised into copying whole 32 bits at once)
PR tree-optimization/78821
* gimple-ssa-store-merging.c (find_bswap_or_nop_load): Give up
if base is TARGET_MEM_REF. If base is not MEM_REF, set base_addr
to the address of the base rather than the base itself.
(find_bswap_or_nop_1): Just use pointer comparison for vuse check.
(find_bswap_or_nop_finalize): New function.
(find_bswap_or_nop): Use it.
(bswap_replace): Return a tree rather than bool, change first
argument from gimple * to gimple_stmt_iterator, allow inserting
into an empty sequence, allow ins_stmt to be NULL - then emit
all stmts into gsi. Fix up MEM_REF address gimplification.
(pass_optimize_bswap::execute): Adjust bswap_replace caller.
(struct store_immediate_info): Add N and INS_STMT non-static
data members.
(store_immediate_info::store_immediate_info): Initialize them
from newly added ctor args.
(merged_store_group::apply_stores): Formatting fixes. Sort by
bitpos at the end.
(stmts_may_clobber_ref_p): For stores call also
refs_anti_dependent_p.
(gather_bswap_load_refs): New function.
(imm_store_chain_info::try_coalesce_bswap): New method.
(imm_store_chain_info::coalesce_immediate_stores): Use it.
(split_group): Handle LROTATE_EXPR and NOP_EXPR rhs_code specially.
(imm_store_chain_info::output_merged_store): Fail if number of
new estimated stmts is bigger or equal than old. Handle LROTATE_EXPR
and NOP_EXPR rhs_code.
(pass_store_merging::process_store): Compute n and ins_stmt, if
ins_stmt is non-NULL and the store rhs is otherwise invalid, use
LROTATE_EXPR rhs_code. Pass n and ins_stmt to store_immediate_info
ctor.
(pass_store_merging::execute): Calculate dominators.
Jan Hubicka [Mon, 20 Nov 2017 09:55:02 +0000 (10:55 +0100)]
re PR bootstrap/83062 (Bootstrap failure: libsanitizer/tsan/tsan_rtl.h:713:44: error: inlining failed in call to always_inline ‘void __tsan::MemoryRead(__tsan::ThreadState*, __sanitizer::uptr, __sanitizer: :uptr, int)’: caller is not optimized)
PR bootstrap/83062
* ipa-inline.c (can_inline_edge_p): Fix typo in previous patch.
Paul Thomas [Sun, 19 Nov 2017 19:50:50 +0000 (19:50 +0000)]
re PR fortran/78990 (ICE when assigning polymorphic array function result)
2017-11-19 Paul Thomas <pault@gcc.gnu.org>
PR fortran/78990
* expr.c (gfc_is_class_array_function): Renamed from
'gfc_is_alloc_class_array_function' and modified to return true
for pointers as well as allocatable results.
* gfortran.h : Change of name for prototype of above function.
* trans-array.c (gfc_add_loop_ss_code): Force finalization of
class array results.
(build_class_array_ref): Change assertion into a condition.
(build_class_array_ref): Set the se class_vptr for class array
function results.
(gfc_walk_function_expr): Reference gfc_is_class_array_function
as above.
* trans-decl.c (get_proc_result): Move it up before
gfc_trans_deferred_vars.
(gfc_trans_deferred_vars): Nullify explicit return class arrays
on entry.
* trans-expr.c (gfc_conv_class_to_class): Allow conversion of
class array functions that have an se class_vptr and use it
for the result vptr.
(gfc_conv_subref_array_arg): Rename reference to the above
function.
(gfc_conv_procedure_call): Ditto. Add the se pre block to the
loop pre block before the function is evaluated. Do not
finalize class pointer results.
(arrayfunc_assign_needs_temporary, gfc_trans_assignment_1) More
renamed references.
* trans-intrinsic.c (gfc_conv_intrinsic_size): Ditto.
2017-11-19 Paul Thomas <pault@gcc.gnu.org>
PR fortran/78990
* gfortran.dg/class_67.f90: New test.
Jakub Jelinek [Sun, 19 Nov 2017 17:17:01 +0000 (18:17 +0100)]
re PR c/66618 (Failure to diagnose non-constant initializer for static object with -O1)
PR c/66618
PR c/69960
c-family/
* c-common.h (c_fully_fold): Add LVAL argument defaulted to false.
c/
* 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.
cp/
* cp-gimplify.c (c_fully_fold): Add LVAL argument, call
cp_fold_maybe_rvalue instead of cp_fold_rvalue and pass it !LVAL.
testsuite/
* gcc.dg/pr69960.c: New test.
* gcc.dg/pr66618.c: New test.
* gcc.dg/pr66618-2.c: New test.
Tom de Vries [Sun, 19 Nov 2017 10:39:27 +0000 (10:39 +0000)]
[mcore] Remove semicolon after do {} while (0) in MCORE_EXPORT_NAME
2017-11-19 Tom de Vries <tom@codesourcery.com>
* config/mcore/mcore-elf.h (MCORE_EXPORT_NAME): Remove semicolon after
"do {} while (0)".
* config/mcore/mcore.h (ASM_OUTPUT_ALIGNED_COMMON): After missing
semicolon after MCORE_EXPORT_NAME call.
Janne Blomqvist [Sat, 18 Nov 2017 22:05:13 +0000 (00:05 +0200)]
PR 44292 Handle large record lengths
Now that the ABI supports large record lengths, there's a few places
in libgfortran where we need to use larger types. For internal units
which by definition are in-memory, it's enought to use ptrdiff_t, for
external units gfc_offset.
Regtested on x86_64-pc-linux-gnu?
libgfortran/ChangeLog:
2017-11-19 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/44292
* io/transfer.c (skip_record): Use gfc_offset to handle large
records.
(next_record_r): Likewise.
(sset): Likewise.
(next_record_w): Use gfc_offset/ptrdiff_t appropriately.
Janne Blomqvist [Sat, 18 Nov 2017 16:56:21 +0000 (18:56 +0200)]
PR 83036 Make NEXTREC specifier for INQUIRE work for large record numbers
This is accomplished by making the NEXTREC specifier be a 8 byte
integer where supported.
I wasn't able to come up with a testcase that does not create a large
file that could be added to the testsuite, but here's one which
creates a 2 GB file:
program nextrec
implicit none
integer(8) :: ii, n
open(10, file="foo.dat", recl=1, access="direct", form="unformatted", &
status="replace")
do ii = 1, huge(1) + 2_8
write(10, rec=ii) 'a'
end do
inquire(10, nextrec=n)
if (n /= huge(1) + 3_8) then
call abort()
end if
close(10, status="delete")
end program nextrec
Regtested on x86_64-pc-linux-gnu.
gcc/fortran/ChangeLog:
2017-11-18 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/83036
* ioparm.def (IOPARM): Make nextrec a pintio.
Thomas Koenig [Sat, 18 Nov 2017 15:53:21 +0000 (15:53 +0000)]
re PR fortran/83012 (Simply contiguous pointer function not recognized as contiguous)
2017-11-18 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/83012
* expr.c (gfc_is_simply_contiguous): If a function call through a
class variable is done through a reference, check the function's
interface.
2017-11-18 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/83012
* gfortran.dg/contiguous_5.f90: New test.
Igor Tsimbalist [Fri, 17 Nov 2017 22:57:07 +0000 (23:57 +0100)]
Add extra field to gtm_jmpbuf on x86 only
Expand the gtm_jmpbuf structure by one word field to add
Intel CET support further. The code in sjlj.S already
allocates more space on the stack then gtm_jmpbuf needs.
Use this extra space to absorb the new field.
The structure is allocated on the stack in such a way
that eip/rsp field is overlapped with return address on
the stack. Locate the new field right before eip/rsp so
code that accesses buffer fields relative to address of
gtm_jmpbuf has its offsets unchanged.
* libitm/config/x86/target.h: Add new field (ssp).
* libitm/config/x86/sjlj.S: Change offsets.
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