Copy-edit the Option Summary in invoke.texi

* doc/invoke.texi (Option Summary): Use negative form of
-Waggressive-loop-optimizations, remove redundant -Wpedantic-ms-format,
sort alphabetically and re-justify.

From-SVN: r231022

re PR rtl-optimization/68536 (LRA ICEs with new arm pattern)

2015-11-27  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/68536
* lra.c (lra_emit_add): Add code for null base.
* lra-constraints.c (curr_insn_transform): Skip operators for
subreg reloads.

From-SVN: r231021

PR other/61321 - demangler crash on casts in template parameters

The fix for bug 59195:

 [C++ demangler handles conversion operator incorrectly]
 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59195

unfortunately makes the demangler crash due to infinite recursion, in
case of casts in template parameters.

For example, with:

 template<int> struct A {};
 template <typename Y> void function_temp(A<sizeof ((Y)(999))>) {}
 template void function_temp<int>(A<sizeof (int)>);

The 'function_temp<int>' instantiation above mangles to:

  _Z13function_tempIiEv1AIXszcvT_Li999EEE

The demangler parses this as:

typed name
  template
    name 'function_temp'
    template argument list
      builtin type int
  function type
    builtin type void
    argument list
      template                          (*)
        name 'A'
        template argument list
          unary operator
            operator sizeof
            unary operator
              cast
                template parameter 0    (**)
              literal
                builtin type int
                name '999'

And after the fix for 59195, due to:

 static void
 d_print_cast (struct d_print_info *dpi, int options,
       const struct demangle_component *dc)
 {
 ...
   /* For a cast operator, we need the template parameters from
      the enclosing template in scope for processing the type.  */
   if (dpi->current_template != NULL)
     {
       dpt.next = dpi->templates;
       dpi->templates = &dpt;
       dpt.template_decl = dpi->current_template;
     }

when printing the template argument list of A (what should be "<sizeof
(int)>"), the template parameter 0 (that is, "T_", the '**' above) now
refers to the first parameter of the the template argument list of the
'A' template (the '*' above), exactly what we were already trying to
print.  This leads to infinite recursion, and stack exaustion.  The
template parameter 0 should actually refer to the first parameter of
the 'function_temp' template.

Where it reads "for the cast operator" in the comment in d_print_cast
(above), it's really talking about a conversion operator, like:

  struct A { template <typename U> explicit operator U(); };

We don't want to inject the template parameters from the enclosing
template in scope when processing a cast _expression_, only when
handling a conversion operator.

The problem is that DEMANGLE_COMPONENT_CAST is currently ambiguous,
and means _both_ 'conversion operator' and 'cast expression'.

Fix this by adding a new DEMANGLE_COMPONENT_CONVERSION component type,
which does what DEMANGLE_COMPONENT_CAST does today, and making
DEMANGLE_COMPONENT_CAST just simply print its component subtree.

I think we could instead reuse DEMANGLE_COMPONENT_CAST and in
d_print_comp_inner still do:

 @@ -5001,9 +5013,9 @@ d_print_comp_inner (struct d_print_info *dpi, int options,
        d_print_comp (dpi, options, dc->u.s_extended_operator.name);
        return;

     case DEMANGLE_COMPONENT_CAST:
       d_append_string (dpi, "operator ");
 -     d_print_cast (dpi, options, dc);
 +     d_print_conversion (dpi, options, dc);
       return;

leaving the unary cast case below calling d_print_cast, but seems to
me that spliting the component types makes it easier to reason about
the code.

g++'s testsuite actually generates three symbols that crash the
demangler in the same way.  I've added those as tests in the demangler
testsuite as well.

And then this fixes PR other/61233 too, which happens to be a
demangler crash originally reported to GDB, at:
https://sourceware.org/bugzilla/show_bug.cgi?id=16957

Bootstrapped and regtested on x86_64 Fedora 20.

Also ran this through GDB's testsuite.  GDB will require a small
update to use DEMANGLE_COMPONENT_CONVERSION in one place it's using
DEMANGLE_COMPONENT_CAST in its sources.

libiberty/
2015-11-27  Pedro Alves  <palves@redhat.com>

        PR other/61321
        PR other/61233
        * demangle.h (enum demangle_component_type)
        <DEMANGLE_COMPONENT_CONVERSION>: New value.
        * cp-demangle.c (d_demangle_callback, d_make_comp): Handle
        DEMANGLE_COMPONENT_CONVERSION.
        (is_ctor_dtor_or_conversion): Handle DEMANGLE_COMPONENT_CONVERSION
        instead of DEMANGLE_COMPONENT_CAST.
        (d_operator_name): Return a DEMANGLE_COMPONENT_CONVERSION
        component if handling a conversion.
        (d_count_templates_scopes, d_print_comp_inner): Handle
        DEMANGLE_COMPONENT_CONVERSION.
        (d_print_comp_inner): Handle DEMANGLE_COMPONENT_CONVERSION instead
        of DEMANGLE_COMPONENT_CAST.
        (d_print_cast): Rename as ...
        (d_print_conversion): ... this.  Adjust comments.
        (d_print_cast): Rewrite - simply print the left subcomponent.
        * cp-demint.c (cplus_demangle_fill_component): Handle
        DEMANGLE_COMPONENT_CONVERSION.

        * testsuite/demangle-expected: Add tests.

From-SVN: r231020

Fix FAIL: gcc.c-torture/execute/20050124-1.c   -O2  (internal compiler error)

Revert
2015-11-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

* ifcvt.c (insn_valid_noce_process_p): Reject insn if it satisfies
multiple_sets.
(noce_try_cmove_arith): Add checking asserts that orig_a and orig_b
are not modified by the final modified insns in the basic blocks.

From-SVN: r231019

nvptx-protos.h (nvptx_addr_space_from_address): Don't declare.

* config/nvptx/nvptx-protos.h (nvptx_addr_space_from_address):
Don't declare.
* config/nvptx/nvptx.c (nvptx_addr_space_from_sym): New.
(nvptx_maybe_convert_symbolic_operand): Simplify.
(nvptx_addr_space_from_address): Delete.
(nvptx_print_operand): Adjust 'A' case.

From-SVN: r231016

re PR tree-optimization/68559 (Excessive peeling for gaps)

2015-11-27  Richard Biener  <rguenther@suse.de>

PR tree-optimization/68559
* tree-vect-data-refs.c (vect_analyze_group_access_1): Move
peeling for gap checks ...
* tree-vect-stmts.c (vectorizable_load): ... here and relax
for SLP.
* tree-vect-loop.c (vect_analyze_loop_2): Re-set
LOOP_VINFO_PEELING_FOR_GAPS before re-trying without SLP.

* gcc.dg/vect/slp-perm-4.c: Adjust again.
* gcc.dg/vect/pr45752.c: Likewise.

From-SVN: r231015

nvptx-protos.h (nvptx_record_needed_decl): Don't declaree.

* config/nvptx/nvptx-protos.h (nvptx_record_needed_decl): Don't
declaree.
* config/nvptx/nvptx.c (write_func_decl_from_insn): Move earlier.
(nvptx_record_fndecl): Don't return value, remove force
argyment. Require fndecl.
(nvptx_record_libfunc): New.
(nvptx_record_needed_decl): Deteermine how to record decl here.
(nvptx_maybe_record_fnsym): New.
(nvptx_expand_call): Don't record libfuncs here,
(nvptx_maybe_convert_symbolic_operand): Use
nvptx_maye_record_fnsym.
(nvptx_assemble_integer): Reimplement with single switch.
(nvptx_output_call_insn): Register libfuncs here.
(nvptx_file_end): Adjust  nvptx_record_fndecl call.
* config/nvptx/nvptx.md (expand_movdi): Don't call
nvptx_record_needed_decl.

From-SVN: r231013

re PR rtl-optimization/68250 (wrong code at -O2 and -O3 on x86_64-linux-gnu (in 64-bit mode))

PR rtl-optimization/68250
* gcc.c-torture/execute/pr68250.c: New test.

From-SVN: r231009

* gcc.dg/pr63568.c: Convert to GIMPLE.

From-SVN: r231007

re PR tree-optimization/68553 (gcc.dg/vect/pr68445.c FAILs)

2015-11-27  Richard Biener  <rguenther@suse.de>

PR tree-optimization/68553
* tree-vect-slp.c (vect_create_mask_and_perm): Skip VEC_PERM_EXPR
generation for 1:1 permutations.
(vect_transform_slp_perm_load): Detect 1:1 permutations.

From-SVN: r231006

Be more careful about barriers when speculating conditional stores.

* gimple.h (nonbarrier_call_p): Declare.
* gimple.c (nonbarrier_call_p): New function.
* tree-ssa-phiopt.c (nontrapping_dom_walker::before_dom_children):
Also increment call phase for ASMs with vdef and potential barrier
calls.

From-SVN: r231005

[RTL-ifcvt] Reject insns that are multiple_sets

* ifcvt.c (insn_valid_noce_process_p): Reject insn if it satisfies
multiple_sets.
(noce_try_cmove_arith): Add checking asserts that orig_a and orig_b
are not modified by the final modified insns in the basic blocks.

From-SVN: r231004

[RTL-ifcvt] PR rtl-optimization/68506: Fix emitting order of insns in IF-THEN-JOIN case

PR rtl-optimization/68506
* ifcvt.c (noce_try_cmove_arith): Try emitting the else basic block
first if emit_a exists or then_bb modifies 'b'.  Reindent if-else
blocks.

* gcc.c-torture/execute/pr68506.c: New test.

From-SVN: r231003

Fix memory leak in cilk

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.
PR c++/68312
* cp-array-notation.c (expand_sec_reduce_builtin):
Likewise.
(create_array_refs): Replace argument with const reference.
(expand_an_in_modify_expr): Likewise.
(cp_expand_cond_array_notations): Likewise.
(expand_unary_array_notation_exprs): Likewise.
PR c++/68312
* array-notation-common.c (cilkplus_extract_an_triplets):
Release vector of vectors.
* cilk.c (gimplify_cilk_spawn): Free allocated memory.
PR c++/68312
* vec.h (release_vec_vec): New function.

From-SVN: r231001

re PR tree-optimization/68552 (ICE in in expand_expr_real_2 with -O2 -ftree-vectorize)

PR tree-optimization/68552
* optabs.c (expand_vec_perm_1): Move vec_shr handling from here...
(expand_vec_perm): ... here.  Do it regardless of vec_perm_const_optab
or whether v0 == v1.

From-SVN: r231000

re PR c/63326 (whether a #pragma is a statement depends on the type of pragma)

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.

* parser.c (cp_parser_statement): Clear in_compound after labels.

* gcc.dg/gomp/barrier-2.c (f2): Expect another error after label.
* c-c++-common/gomp/pr63326.c: New test.

* testsuite/libgomp.c/cancel-parallel-2.c (foo): Add semicolon
in between case label and OpenMP standalone directives.
* testsuite/libgomp.c++/cancel-parallel-2.C (foo): Likewise.

From-SVN: r230999

Replace spaces with tabs and remove trailing whitespaces

* tree-ssa-uninit.c: Fix whitespaces in the source file.
The change is just automatical.

From-SVN: r230998

Fix memory leak in tree-chkp.c

* tree-chkp.c (chkp_make_static_bounds): Release buffer
used for string.

From-SVN: r230997

Fix parser memory leak in cilk_simd_fn_info

* parser.c (cp_parser_late_parsing_cilk_simd_fn_info):
Release tokens.

From-SVN: r230996

Fix memory leak in loop_vec_info

* tree-vect-loop-manip.c (vect_create_cond_for_alias_checks):
Do not release memory for comp_alias_ddrs.
* tree-vect-loop.c (destroy_loop_vec_info): Release
the memory for all loop_vec_info.

From-SVN: r230995

Fix memory leaks in IPA devirt

* ipa-devirt.c (ipa_devirt): Use auto_vec instead
of a local-scope vec.
(struct final_warning_record): Use auto_vec instead
of vec.

From-SVN: r230994

re PR tree-optimization/68553 (gcc.dg/vect/pr68445.c FAILs)

2015-11-27  Richard Biener  <rguenther@suse.de>

PR tree-optimization/68553
* tree-vect-slp.c (vect_get_mask_element): Remove.
(vect_transform_slp_perm_load): Implement in a simpler way.

* gcc.dg/vect/pr45752.c: Adjust.
* gcc.dg/vect/slp-perm-4.c: Likewise.

From-SVN: r230993

Daily bump.

From-SVN: r230990

Correctly handle ARM targets.

* g++.dg/init/new45.C (cookie_size): New constant set to a value
appropriate for the target.
(operator new[]): Use it.

From-SVN: r230987

[PR67753] adjust for padding when bypassing memory in assign_parm_setup_block

Storing a register in memory as a full word and then accessing the
same memory address under a smaller-than-word mode amounts to
right-shifting of the register word on big endian machines.  So, if
BLOCK_REG_PADDING chooses upward padding for BYTES_BIG_ENDIAN, and
we're copying from the entry_parm REG directly to a pseudo, bypassing
any stack slot, perform the shifting explicitly.

This fixes the miscompile of function_return_val_10 in
gcc.target/aarch64/aapcs64/func-ret-4.c for target aarch64_be-elf
introduced in the first patch for 67753.

for  gcc/ChangeLog

PR rtl-optimization/67753
PR rtl-optimization/64164
* function.c (assign_parm_setup_block): Right-shift
upward-padded big-endian args when bypassing the stack slot.

From-SVN: r230985

MIPS/GCC/doc: Reorder `-mcompact-branches='

Move the `-mcompact-branches=' option out of the middle of a block of
floating-point options.  The option is not related to FP in any way.
Place it immediately below other branch instruction selection options.

* doc/invoke.texi (Option Summary) <MIPS Options>: Reorder
`-mcompact-branches='.
(MIPS Options): Likewise.

From-SVN: r230984

Fix whitespacing.

From-SVN: r230983

* Makefile.in (build/genmatch.o): Depend on internal-fn.def.

From-SVN: r230982

re PR c++/67238 ([C++11][C++14]cc1plus crash for nested decltype expression in parameter pack in trailing return type when '-g' enabled)

2015-11-26  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/67238
* g++.dg/cpp0x/pr67238.C: New.

From-SVN: r230981

pr67876.C: Remove duplicate content.

gcc/testsuite/
* g++.dg/pr67876.C: Remove duplicate content.

From-SVN: r230980

cp-gimplify.c (genericize_cp_loop): Change LOOP_EXPR's location to start of loop body instead of start of loop.

gcc/cp/ChangeLog:

2015-11-26  Andreas Arnez  <arnez@linux.vnet.ibm.com>

* cp-gimplify.c (genericize_cp_loop): Change LOOP_EXPR's location
to start of loop body instead of start of loop.

gcc/testsuite/ChangeLog:

2015-11-26  Andreas Arnez  <arnez@linux.vnet.ibm.com>

* g++.dg/guality/pr67192.C: New test.

From-SVN: r230979

install.texi (Prerequisites): Increase ISL requirement to 0.14 or 0.15.

        * doc/install.texi (Prerequisites): Increase ISL requirement to
        0.14 or 0.15.

From-SVN: r230978

Ensure another pretty-printer test uses C++98 mode

* testsuite/libstdc++-prettyprinters/debug.cc: Add -std=gnu++98 to
dg-options and avoid use of uniform-init.

From-SVN: r230977

libitm: Use multiplicative hashing in the multi-lock TM method.

* method-ml.cc (ml_mg): Use multiplicative instead of simple hashing.
(ml_wt_dispatch::pre_write): Adapt.
(ml_wt_dispatch::pre_load): Likewise.

From-SVN: r230975

Ensure pretty-printer test uses C++98 mode

* testsuite/libstdc++-prettyprinters/simple.cc: Add -std=gnu++98 to
dg-options and avoid use of uniform-init.

From-SVN: r230973

[AArch64] Add NEON intrinsics vqrdmlah_lane and vqrdmlsh_lane.

        gcc/
* gcc/config/aarch64/arm_neon.h
(vqrdmlah_laneq_s16, vqrdmlah_laneq_s32): New.
(vqrdmlahq_laneq_s16, vqrdmlahq_laneq_s32): New.
(vqrdmlsh_lane_s16, vqrdmlsh_lane_s32): New.
(vqrdmlshq_laneq_s16, vqrdmlshq_laneq_s32): New.
(vqrdmlah_lane_s16, vqrdmlah_lane_s32): New.
(vqrdmlahq_lane_s16, vqrdmlahq_lane_s32): New.
(vqrdmlahh_s16, vqrdmlahh_lane_s16, vqrdmlahh_laneq_s16): New.
(vqrdmlahs_s32, vqrdmlahs_lane_s32, vqrdmlahs_laneq_s32): New.
(vqrdmlsh_lane_s16, vqrdmlsh_lane_s32): New.
(vqrdmlshq_lane_s16, vqrdmlshq_lane_s32): New.
(vqrdmlshh_s16, vqrdmlshh_lane_s16, vqrdmlshh_laneq_s16): New.
(vqrdmlshs_s32, vqrdmlshs_lane_s32, vqrdmlshs_laneq_s32): New.

        gcc/testsuite
* gcc.target/aarch64/advsimd-intrinsics/vqrdmlXh_lane.inc: New file,
support code for vqrdml{as}h_lane tests.
* gcc.target/aarch64/advsimd-intrinsics/vqrdmlah_lane.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vqrdmlsh_lane.c: New.

From-SVN: r230972

[AArch64] Add NEON intrinsics vqrdmlah and vqrdmlsh.

        gcc/
* gcc/config/aarch64/arm_neon.h (vqrdmlah_s16, vqrdmlah_s32): New.
(vqrdmlahq_s16, vqrdmlahq_s32): New.
(vqrdmlsh_s16, vqrdmlsh_s32): New.
(vqrdmlshq_s16, vqrdmlshq_s32): New.

        gcc/testsuite
* gcc.target/aarch64/advsimd-intrinsics/vqrdmlXh.inc: New file,
support code for vqrdml{as}h tests.
* gcc.target/aarch64/advsimd-intrinsics/vqrdmlah.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vqrdmlsh.c: New.

From-SVN: r230971

[AArch64][dejagnu] Dejagnu support for ARMv8.1 Adv.SIMD.

        gcc/testsuite
* lib/target-supports.exp (add_options_for_arm_v8_1a_neon): New.
(check_effective_target_arm_arch_FUNC_ok)
(add_options_for_arm_arch_FUNC)
(check_effective_target_arm_arch_FUNC_multilib): Add "armv8.1-a"
to the list to be generated.
(check_effective_target_arm_v8_1a_neon_ok_nocache): New.
(check_effective_target_arm_v8_1a_neon_ok): New.
(check_effective_target_arm_v8_1a_neon_hw): New.

From-SVN: r230970

[AArch64] Add ACLE feature macro for ARMv8.1 Adv.SIMD instructions.

* config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Add
ARM_FEATURE_QRDMX.

From-SVN: r230969

DWARF: fix loc. descr. generation for DW_AT_static_link

gcc/ChangeLog:

PR debug/53927
* tree-nested.c (finalize_nesting_tree_1): Append a field to
hold the frame base address.
* dwarf2out.c (gen_subprogram_die): Generate for
DW_AT_static_link a location description that computes the value
of this field.

From-SVN: r230968

Revert "Improve verification of loop->latch in verify_loop_structure"

2015-11-26  Tom de Vries  <tom@codesourcery.com>

revert:
2015-11-25  Tom de Vries  <tom@codesourcery.com>

* cfgloop.c (find_single_latch): New function, factored out of ...
(flow_loops_find): ... here.
(verify_loop_structure): Improve verification of loop->latch.
* cfgloop.h (find_single_latch): Declare.
* omp-low.c (expand_omp_for_generic): Initialize latch of orig_loop.

From-SVN: r230967

aarch64-simd-builtins.def: Add missing changes from r230962.

* config/aarch64/aarch64-simd-builtins.def:
Add missing changes from r230962.

From-SVN: r230966

nvptx.c (write_func_decl_from_insn): Replace callee arg with name.

* config/nvptx/nvptx.c (write_func_decl_from_insn): Replace callee
arg with name.  Don't deal with split regs.  Tweak formatting.
(nvptx_expand_call): Adjust write_func_decl_from_insn call.
(nvptx_output_call_insn): Don't deal with split regs here.

testsuite/
* gcc.target/nvptx/proto-1.c: Adjust expected asm.

From-SVN: r230965

re PR tree-optimization/68555 (gcc.dg/vect/bb-slp-10.c FAILs)

2015-11-26  Richard Biener  <rguenther@suse.de>

PR testsuite/68555
* gcc.dg/vect/bb-slp-10.c: Adjust pattern, use target selector
and not XFAIL.

From-SVN: r230963

[AArch64] Add builtins for ARMv8.1 Adv.SIMD instructions.

* config/aarch64/aarch64-simd-builtins.def
(sqrdmlah, sqrdmlsh): New.
(sqrdmlah_lane, sqrdmlsh_lane): New.
(sqrdmlah_laneq, sqrdmlsh_laneq): New.

From-SVN: r230962

re PR tree-optimization/68554 (gcc.dg/vect/bb-slp-subgroups-2.c FAILs)

2015-11-26  Richard Biener  <rguenther@suse.de>

PR testsuite/68554
* gcc.dg/vect/bb-slp-subgroups-2.c: Require vect_perm.

From-SVN: r230961

[AArch64] Add sqrdmah, sqrdmsh instructions.

* config/aarch64/aarch64-simd.md
(aarch64_sqmovun<mode>): Fix some white-space.
(aarch64_<sur>qmovun<mode>): Likewise.
(aarch64_sqrdml<SQRDMLH_AS:rdma_as>h<mode>): New.
(aarch64_sqrdml<SQRDMLH_AS:rdma_as>h_lane<mode>): New.
(aarch64_sqrdml<SQRDMLH_AS:rdma_as>h_laneq<mode>): New.
* config/aarch64/iterators.md (UNSPEC_SQRDMLAH): New.
(UNSPEC_SQRDMLSH): New.
(SQRDMLH_AS): New.
(rdma_as): New.

From-SVN: r230959

* g++.dg/tree-ssa/pr61034.C: Scan tree dumps also for alpha*-*-*.

From-SVN: r230958

re PR tree-optimization/66721 (gcc.target/i386/pr61403.c FAILs)

2015-11-26  Richard Biener  <rguenther@suse.de>

PR tree-optimization/66721
* tree-vect-loop.c (vect_analyze_loop_2): Compute scalar
iteration cost earlier.  Re-do analysis without SLP when
vectorization using SLP fails and without has a chance to succeed.

From-SVN: r230956

genmatch.c (dt_simplify::gen_1): For generic wrap all multi-result-use captures in a SAVE_EXPR.

2015-11-26  Richard Biener  <rguenther@suse.de>

* genmatch.c (dt_simplify::gen_1): For generic wrap all
multi-result-use captures in a SAVE_EXPR.

From-SVN: r230955

Fix typo

From-SVN: r230954

[AArch64] Add support for ARMv8.1 Adv.SIMD instructions.

* config/aarch64/aarch64.h (AARCH64_ISA_RDMA): New.
(TARGET_SIMD_RDMA): New.

From-SVN: r230953

* configure: Regenerate.

From-SVN: r230950

* configure: Regenerate.

From-SVN: r230949

* libtool.m4 (export_symbols_cmds) [AIX]: Add global TLS "L" symbols.

From-SVN: r230948

re PR c++/67249 ([concepts] ICE parsing f(pair<auto, concept>))

2015-11-26  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/67249
* g++.dg/concepts/pr67249.C: New.

From-SVN: r230947

[combine] Only restrict pure simplification in mult-extend subst case, allow other substitutions

* combine.c (subst): Do not return clobber of zero in widening mult
case.  Just return x unchanged if it is a no-op substitution.

From-SVN: r230946

re PR testsuite/66799 (gcc.dg/vect/pr20122.c FAILs)

2015-11-26  Richard Biener  <rguenther@suse.de>

PR testsuite/66799
* gcc.dg/vect/pr20122.c (main): Do not align Kernel, do not
vectorize init loop and adjust expected outcome.

From-SVN: r230943

re PR c++/68527 (ICE with -fdump-ada-spec on invalid C++ 11 code)

PR c++/68527
* c-ada-spec.c (dump_nested_types): Add guard for error_mark_node.
(print_ada_struct_decl): Likewise.

From-SVN: r230942

re PR testsuite/67203 (FAIL: g++.dg/tree-ssa/pr61034.C  -std=gnu++11  scan-tree-dump-times fre2 "free" 10)

2015-11-26  Richard Biener  <rguenther@suse.de>

PR testsuite/67203
* g++.dg/tree-ssa/pr61034.C: Make expected optimization result
dependent on PUSH_ARGS_REVERSED.  Drop optimization level and
also monitor final optimization result.

From-SVN: r230940

re PR rtl-optimization/68249 (wrong code at -O2 and -O3 on x86_64-linux-gnu)

PR rtl-optimization/68249
PR rtl-optimization/68321
* gcc.c-torture/execute/pr68249.c: New test.
* gcc.c-torture/execute/pr68321.c: New test.

From-SVN: r230939

re PR target/68416 ([MPX] GCC emits a lot of redundant bndmov instructions)

gcc/

2015-11-26  Vladimir Makarov  <vmakarov@redhat.com>

PR target/68416
* config/i386/i386.h (enum reg_class): Add
bounds registers to ALL_REGS.

gcc/testsuite/

2015-11-26  Ilya Enkovich  <enkovich.gnu@gmail.com>

PR target/68416
* gcc.target/i386/mpx/pr68416.c: New test.

From-SVN: r230938

Back out latest change.

From-SVN: r230935

re PR c++/67313 (ICE: in vague_linkage_p, at cp/decl2.c:1878 with -fno-weak and variadic template)

2015-11-26  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/67313
* g++.dg/cpp0x/no-weak1.C: New.

From-SVN: r230934

re PR tree-optimization/68128 (A huge regression in Parboil v2.5 OpenMP CUTCP test (2.5 times lower performance))

PR tree-optimization/68128
* tree.h (OMP_CLAUSE_SHARED_READONLY): Define.
* gimplify.c: Include gimple-walk.h.
(enum gimplify_omp_var_data): Add GOVD_WRITTEN.
(omp_notice_variable): Set flags to n->value if n already
exists in target region, but we need to jump to do_outer.
(omp_shared_to_firstprivate_optimizable_decl_p,
omp_mark_stores, omp_find_stores_op, omp_find_stores_stmt): New
functions.
(gimplify_adjust_omp_clauses_1): Set OMP_CLAUSE_SHARED_READONLY
on OMP_CLAUSE_SHARED if it is a scalar non-addressable that is
not modified in the body.  Call omp_mark_stores for outer
contexts on OMP_CLAUSE_SHARED clauses if they could be written
in the body or on OMP_CLAUSE_LASTPRIVATE.
(gimplify_adjust_omp_clauses): Add body argument, call
omp_find_stores_{stmt,op} on the body through walk_gimple_seq.
Set OMP_CLAUSE_SHARED_READONLY
on OMP_CLAUSE_SHARED if it is a scalar non-addressable that is
not modified in the body.  Call omp_mark_stores for outer
contexts on OMP_CLAUSE_SHARED clauses if they could be written
in the body or on OMP_CLAUSE_LASTPRIVATE or on OMP_CLAUSE_LINEAR
without OMP_CLAUSE_LINEAR_NO_COPYOUT or on OMP_CLAUSE_REDUCTION.
(gimplify_oacc_cache, gimplify_omp_parallel, gimplify_omp_task,
gimplify_omp_for, gimplify_omp_workshare, gimplify_omp_target_update,
gimplify_expr): Adjust gimplify_adjust_omp_clauses callers.
* tree-nested.c (convert_nonlocal_omp_clauses,
convert_local_omp_clauses): Clear OMP_CLAUSE_SHARED_READONLY on
non-local vars or local vars referenced from nested routines.
* omp-low.c (scan_sharing_clauses): For OMP_CLAUSE_SHARED_READONLY
attempt to optimize it into OMP_CLAUSE_FIRSTPRIVATE.  Even for
TREE_READONLY, don't call use_pointer_for_field with non-NULL
second argument until we are sure we are keeping OMP_CLAUSE_SHARED.

* gcc.dg/gomp/pr68128-1.c: New test.
* gcc.dg/gomp/pr68128-2.c: New test.

From-SVN: r230932

implement-c.texi (Integers Implementation): Make GCC's promises about signed left shift stronger and clarify the cases when...

2015-11-26  Paolo Bonzini <bonzini@gnu.org>

* doc/implement-c.texi (Integers Implementation): Make GCC's promises
about signed left shift stronger and clarify the cases when they're
broken.

From-SVN: r230931

[calls.c] PR rtl-optimization/67226: Take into account pretend_args_size when checking stack offsets for sibcall optimisation

2015-11-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
            Bernd Schmidt  <bschmidt@redhat.com>

PR rtl-optimization/67226
* calls.c (store_one_arg): Take into account
crtl->args.pretend_args_size when checking for overlap between
arg->value and argblock + arg->locate.offset during sibcall
optimization.

* gcc.c-torture/execute/pr67226.c: New test.

Co-Authored-By: Bernd Schmidt <bernds@redhat.com>
From-SVN: r230929

re PR c++/68508 (Internal compiler error with parentheses around return value in C++14 with ASan enabled)

PR c++/68508
* cp-tree.h (cp_ubsan_maybe_instrument_downcast): Add INTYPE argument.
* cp-ubsan.c (cp_ubsan_maybe_instrument_downcast): Likewise.  Use
it instead of or in addition to TREE_TYPE (op).  Use
is_properly_derived_from, return NULL_TREE if TREE_TYPE (intype) and
TREE_TYPE (type) are the same type minus qualifiers.
* typeck.c (build_static_cast_1): Adjust callers.

* g++.dg/ubsan/pr68508.C: New test.

From-SVN: r230928

[AArch64] Update patterns to support FP zero

2015-11-26  Wilco Dijkstra  <wdijkstr@arm.com>

* config/aarch64/aarch64.md (cbranch<mode>4): Use
aarch64_fp_compare_operand.
(store_pairsf): Use aarch64_reg_or_fp_zero.
(store_pairdf): Likewise.
(cstore<mode>4): Use aarch64_fp_compare_operand.
(cmov<mode>6): Likewise.
* config/aarch64/aarch64-ldpstp.md: Use aarch64_reg_or_fp_zero.

From-SVN: r230927

* testsuite/libgomp.c/target-35.c: New test.

From-SVN: r230926

PR c++/67876 - [6 Regression] ICE when compiling Firefox 38

gcc/cp
* pt.c (convert_template_argument): Make sure number of tree
operands is greater than zero before attempting to extract one.

gcc/testsuite/
* g++.dg/pr67876.C: New test.

From-SVN: r230924

re PR go/61303 (gccgo: segfault, regression since 4.8.2)

PR go/61303
    runtime: don't overallocate in select code

    If we've already allocated an fd_set, don't allocate another one.

    Also, don't bother to read from rdwake if it wasn't returned in select.

    Fixes https://gcc.gnu.org/PR61303.

    Reviewed-on: https://go-review.googlesource.com/17243

From-SVN: r230922

Daily bump.

From-SVN: r230921

fix PR68453: recursively add phi nodes to merge points

The patch adds close phi nodes to every outer loop exit, and to every loop
guard.  For loop guards it computes an initial value that determines where we
stop inserting phi nodes.  When the initial value is a constant, the initial
value is considered to be defined in the entry of the code gen region.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>
From-SVN: r230918

PR c/66516 - missing diagnostic on taking the address of a builtin function

PR c/66516 - missing diagnostic on taking the address of a builtin function
* g++.dg/addr_builtin-1.C: New test (accidentally omitted from
initial commit).
* gcc.dg/addr_builtin-1.c: Same.

From-SVN: r230916

re PR lto/67548 (LTO drops weak binding with "ld -r")

PR lto/67548
* lto-plugin.c (linker_output, linker_output_set): New statics.
(all_symbols_read_handler): Add -flinker-output option.
(onload): Record linker_output info.

* ipa-visibility.c (cgraph_externally_visible_p,
varpool_node::externally_visible_p): When doing incremental linking,
hidden symbols may be still used later.
(update_visibility_by_resolution_info): Do not drop weak during
incremental link.
(function_and_variable_visibility): Fix formating.
* flag-types.h (lto_linker_output): Declare.
* common.opt 9flag_incremental_link): New flag.

* lto-lang.c (lto_post_options): Process flag_lto_linker_output.
* lang.opt (lto_linker_output): New enum.
(flinker_output): New flag.

From-SVN: r230915

update changelog

From-SVN: r230914

<patch #10>

[gcc]
2015-11-25  Michael Meissner  <meissner@linux.vnet.ibm.com>

<patch #10>
* config/rs6000/constraints.md (wb constraint): New constraint for
ISA 3.0 d-form scalar addressing.

* config/rs6000/rs6000.c (mode_supports_vmx_dform): Add support
for ISA 3.0 D-form addressing to load SFmode/DFmode scalars into
Altivec registers.  Add wb constraint for Altivec registers with
D-form addressing.  If we have ISA 3.0 d-form support, undo
secondary reload support for using FPR registers if we want to do
D-form addressing.
(rs6000_debug_reg_global): Likewise.
(rs6000_setup_reg_addr_masks): Likewise.
(rs6000_init_hard_regno_mode_ok): Likewise.
(rs6000_secondary_reload): Likewise.
(rs6000_preferred_reload_class): Likewise.
(rs6000_secondary_reload_class): Likewise.

* config/rs6000/rs6000.h (enum r6000_reg_class_enum): Add wb
constraint.

* config/rs6000/rs6000.md (f32_lr2 mode attribute): Add support
for ISA 3.0 SFmode/DFmode d-form addressing to Altivec registers.
(f32_lm2): Likewise.
(f32_li2): Likewise.
(f32_sr2): Likewise.
(f32_sm2): Likewise.
(f32_si2): Likewise.
(f64_p9): Likewise.
(extendsfdf2_fpr): Likewise.
(mov<mode>_hardfloat): Likewise.
(mov<mode>_hardfloat32): Likewise.
(mov<mode>_hardfloat64): Likewise.

* doc/md.texi (RS/6000 constraints): Document wb constraint.
Fixup we constraint documentation.

[gcc/testsuite]
2015-11-25  Michael Meissner  <meissner@linux.vnet.ibm.com>

* gcc.target/powerpc/dform-1.c: New test.
* gcc.target/powerpc/dform-2.c: Likewise.

From-SVN: r230913

lto-symtab.c: Include alias.h

* lto-symtab.c: Include alias.h
(warn_type_compatibility_p): Replace types_compatible_p checks by
TBAA and size checks; set bit 2 if locations are TBAA incompatible.
(lto_symtab_merge): Compare DECL sizes.
(lto_symtab_merge_decls_2): Warn about TBAA in compatibility.
* gfortran.dg/lto/bind_c-6_0.f90: New testcase.
* gfortran.dg/lto/bind_c-6_1.c: New testcase.

From-SVN: r230911

* g++.dg/init/self1.C: Remove dg-do run.

From-SVN: r230910

re PR c++/68434 ([concepts] function tsubst sets TYPE_CANONICAL before setting a type's PLACEHOLDER_TYPE_CONSTRAINTS)

PR c++/68434

* pt.c (tsubst): Set PLACEHOLDER_TYPE_CONSTRAINTS before
calling canonical_type_parameter.

From-SVN: r230909

lambda.c (maybe_add_lambda_conv_op): Only set no_sanitize_undefined if SANITIZE_NULL.

* lambda.c (maybe_add_lambda_conv_op): Only set
no_sanitize_undefined if SANITIZE_NULL.

From-SVN: r230908

Add pass_oacc_kernels pass group in passes.def

2015-11-25  Tom de Vries  <tom@codesourcery.com>

* omp-low.c (pass_expand_omp_ssa::clone): New function.
* passes.def: Add pass_oacc_kernels pass group.
* tree-ssa-loop-ch.c (pass_ch::clone): New function.

* g++.dg/tree-ssa/copyprop-1.C: Update after adding new dce1.
* gcc.dg/pr23911.c: Same.
* gcc.dg/tree-ssa/20030709-2.c: Same.
* gcc.dg/tree-ssa/20030731-2.c: Same.
* gcc.dg/tree-ssa/20040729-1.c: Same.
* gcc.dg/tree-ssa/cfgcleanup-1.c: Same.
* gcc.dg/tree-ssa/loop-36.c: Same.
* gcc.dg/tree-ssa/pr21086.c: Same.
* gcc.dg/tree-ssa/ssa-dce-1.c: Same.
* gcc.dg/tree-ssa/ssa-dce-2.c: Same.
* gcc.dg/vect/pr26359.c: Same.
* c-c++-common/restrict-2.c: Update after adding new lim1.
* c-c++-common/restrict-4.c: Same.
* g++.dg/tree-ssa/pr33615.C: Same.
* g++.dg/tree-ssa/restrict1.C: Same.
* gcc.dg/tm/pub-safety-1.c: Same.
* gcc.dg/tm/reg-promotion.c: Same.
* gcc.dg/tree-ssa/20050314-1.c: Same.
* gcc.dg/tree-ssa/loop-32.c: Same.
* gcc.dg/tree-ssa/loop-33.c: Same.
* gcc.dg/tree-ssa/loop-34.c: Same.
* gcc.dg/tree-ssa/loop-35.c: Same.
* gcc.dg/tree-ssa/loop-7.c: Same.
* gcc.dg/tree-ssa/pr23109.c: Same.
* gcc.dg/tree-ssa/restrict-3.c: Same.
* gcc.dg/tree-ssa/restrict-5.c: Same.
* gcc.dg/tree-ssa/ssa-lim-1.c: Same.
* gcc.dg/tree-ssa/ssa-lim-10.c: Same.
* gcc.dg/tree-ssa/ssa-lim-11.c: Same.
* gcc.dg/tree-ssa/ssa-lim-12.c: Same.
* gcc.dg/tree-ssa/ssa-lim-2.c: Same.
* gcc.dg/tree-ssa/ssa-lim-3.c: Same.
* gcc.dg/tree-ssa/ssa-lim-6.c: Same.
* gcc.dg/tree-ssa/ssa-lim-7.c: Same.
* gcc.dg/tree-ssa/ssa-lim-8.c: Same.
* gcc.dg/tree-ssa/ssa-lim-9.c: Same.
* gcc.dg/tree-ssa/structopt-1.c: Same.
* gfortran.dg/pr32921.f: Same.
* g++.dg/tree-ssa/pr19637.C: Update after adding new dom1.
* g++.dg/tree-ssa/pr61009.C: Same.
* g++.dg/tree-ssa/ssa-dom.C: Same.
* gcc.dg/pr20115-1.c: Same.
* gcc.dg/tree-prof/20050826-2.c: Same.
* gcc.dg/tree-prof/cmpsf-1.c: Same.
* gcc.dg/tree-ssa/20030821-1.c: Same.
* gcc.dg/tree-ssa/20030922-2.c: Same.
* gcc.dg/tree-ssa/20031022-1.c: Same.
* gcc.dg/tree-ssa/20040615-1.c: Same.
* gcc.dg/tree-ssa/20040624-1.c: Same.
* gcc.dg/tree-ssa/pr21417.c: Same.
* gcc.dg/tree-ssa/pr61607.c: Same.
* gcc.dg/tree-ssa/slsr-27.c: Same.
* gcc.dg/tree-ssa/slsr-28.c: Same.
* gcc.dg/tree-ssa/slsr-29.c: Same.
* gcc.dg/tree-ssa/ssa-dom-branch-1.c: Same.
* gcc.dg/tree-ssa/ssa-dom-cse-3.c: Same.
* gcc.dg/tree-ssa/ssa-dom-thread-1.c: Same.
* gcc.dg/tree-ssa/ssa-dom-thread-2a.c: Same.
* gcc.dg/tree-ssa/ssa-dom-thread-2b.c: Same.
* gcc.dg/tree-ssa/ssa-dom-thread-2c.c: Same.
* gcc.dg/tree-ssa/ssa-dom-thread-2d.c: Same.
* gcc.dg/tree-ssa/ssa-dom-thread-2e.c: Same.
* gcc.dg/tree-ssa/ssa-dom-thread-2f.c: Same.
* gcc.dg/tree-ssa/ssa-dom-thread-4.c: Same.
* gcc.dg/tree-ssa/ssa-dom-thread-5.c: Same.
* gcc.dg/tree-ssa/ssa-dom-thread-6.c: Same.
* gcc.dg/tree-ssa/ssa-dom-thread-7.c: Same.
* gcc.dg/tree-ssa/ssa-thread-12.c: Same.
* gcc.dg/tree-ssa/vrp47.c: Same.
* gcc.dg/tree-ssa/copy-headers.c: Update after adding ch1.
* gcc.dg/tree-ssa/foldconst-2.c: Same.
* gcc.dg/tree-ssa/loop-40.c: Same.
* gcc.dg/gomp/notify-new-function-3.c: Update after adding ompexpssa1.

From-SVN: r230907

Add pass_oacc_kernels

2015-11-25  Tom de Vries  <tom@codesourcery.com>

* tree-pass.h (make_pass_oacc_kernels, make_pass_oacc_kernels2):
Declare.
* tree-ssa-loop.c (gate_oacc_kernels): New static function.
(pass_data_oacc_kernels, pass_data_oacc_kernels2): New pass_data.
(class pass_oacc_kernels, class pass_oacc_kernels2): New pass.
(make_pass_oacc_kernels, make_pass_oacc_kernels2): New function.

From-SVN: r230906

constexpr-array13.C: Fix.

2015-11-25  Paolo Carlini  <paolo.carlini@oracle.com>

* g++.dg/cpp0x/constexpr-array13.C: Fix.

From-SVN: r230903

timevar.def (TV_IPA_LTO_DECOMPRESS, [...]): New.

* timevar.def (TV_IPA_LTO_DECOMPRESS, TV_IPA_LTO_COMPRESS,
TV_IPA_LTO_OUTPUT): New.
* lto-compress.c: Include timevar.h
(lto_end_compression, lto_end_uncompression): Add timers.
* langhooks.c: Include timevar.h
(lhd_append_data): Add timer.

From-SVN: r230902

* gfortran.dg/nint_p7.f90: New testcase.

From-SVN: r230898

re PR sanitizer/67941 (calls on function pointer from a captureless lambda cause ubsan warning)

PR c++/67941
* lambda.c (maybe_add_lambda_conv_op): Mark _FUN as
no_sanitize_undefined.

From-SVN: r230897

cp-ubsan.c (cp_ubsan_instrument_vptr_p): Use do_ubsan_in_current_function.

* cp-ubsan.c (cp_ubsan_instrument_vptr_p): Use
do_ubsan_in_current_function.

From-SVN: r230896

varasm.c (default_elf_asm_output_limited_string, [...]): Replace fprintf by putc.

* varasm.c (default_elf_asm_output_limited_string,
default_elf_asm_output_ascii): Replace fprintf by putc.

From-SVN: r230895

re PR rtl-optimization/67954 (internal compiler error: in patch_jump_insn, at cfgrtl.c:1303)

2015-11-25  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/67954
* lra-constraints.c (curr_insn_transform): Add check on scratch
pseudo when change class to NO_REGS.  Add an assert.

From-SVN: r230894

nvptx.md (load_arg_reg<mode>): Arg number constraint is 'n'.

* config/nvptx/nvptx.md (load_arg_reg<mode>): Arg number
constraint is 'n'.
* config/nvptx/nvptx.c (write_one_arg): Use 'i' directly as arg
number.
(nvptx_write_function_decl): Number args from 0.
(nvptx_declare_function_name): Likewise.
(nvptx_function_incoming_arg): Likewise.
(nvptx_output_call_insn): Correct formatting.

From-SVN: r230889

optabs.def: Add new optabs fmax_optab/fmin_optab.

2015-11-25  David Sherwood  <david.sherwood@arm.com>

        * optabs.def: Add new optabs fmax_optab/fmin_optab.
        * internal-fn.def: Add new fmax/fmin internal functions.
        * doc/md.texi: Add fmin and fmax patterns.

From-SVN: r230888

re PR c++/68087 (ICE with constexpr in array with negative index)

/cp
2015-11-25  Markus Trippelsdorf  <markus@trippelsdorf.de>
    Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/68087
* constexpr.c (cxx_eval_array_reference): Use tree_fits_shwi_p before
tree_to_shwi to avoid ICEs.

/testsuite
2015-11-25  Markus Trippelsdorf  <markus@trippelsdorf.de>
    Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/68087
* g++.dg/cpp0x/constexpr-array13.C: New.

Co-Authored-By: Paolo Carlini <paolo.carlini@oracle.com>
From-SVN: r230886

[multiple changes]

2015-11-25  Eric Botcazou  <ebotcazou@adacore.com>

* gnatlink.adb (Gnatlink): Do not reinstate -fsjlj for the linker
from the switches saved in the ALI file but from the exception
settings.

2015-11-25  Arnaud Charlet  <charlet@adacore.com>

* lib-xref-spark_specific.adb
(Add_SPARK_Scope): Take entry families into account.
* a-exetim.ads, a-exetim-default.ads, a-exetim-mingw.ads (Clock,
Clock_For_Interrupts): preconditions added.
* a-extiin.ads (Clock): preconditions added.
* par-ch3.adb (P_Declarative_Items): In case of misplaced
aspect specifications, ensure that flag Done is properly set to
continue parsing.

From-SVN: r230879

[multiple changes]

2015-11-25  Arnaud Charlet  <charlet@adacore.com>

* exp_util.adb (Remove_Side_Effects): Minimize extra temporaries
and use of 'Reference when needed.

2015-11-25  Doug Rupp  <rupp@adacore.com>

* sigtramp-vxworks-target.inc (__x86_64__): Restore context for the
sake of uniformity.
* init.c (__gnat_inum_to_ivec): Add some casting to avoid
warnings when sizeof(long) != sizeof(int)

2015-11-25  Yannick Moy  <moy@adacore.com>

* lib-xref-spark_specific.adb (SPARK_Entities): Add entries for
consideration.
(Add_SPARK_Scope): Take tasks into account.
(Detect_And_Add_SPARK_Scope): Take tasks into account.
(Enclosing_Subprogram_Or_Library_Package): Take tasks into account.

From-SVN: r230878

[multiple changes]

2015-11-25  Bob Duff  <duff@adacore.com>

* sem_elab.adb (Check_Internal_Call_Continue): Code clean ups.

2015-11-25  Eric Botcazou  <ebotcazou@adacore.com>

* sem_util.ads (Has_Compatible_Alignment): Add Layout_Done
parameter.
* sem_util.adb (Has_Compatible_Alignment): Likewise.
(Has_Compatible_Alignment_Internal): Likewise. Do not set the
result to Unknown for packed types if Layout_Done is true.
* checks.adb (Apply_Address_Clause_Check): Adjust call and
pass False to Has_Compatible_Alignment.
* sem_ch13.adb (Validate_Address_Clauses): Likewise but pass True.

From-SVN: r230877

[multiple changes]

2015-11-25  Vincent Celier  <celier@adacore.com>

* gnatcmd.adb: When <target>-gnat is called with switch -P
and a GPR tool is invoked, invoke the GPR tool with switch
--target=<target>.

2015-11-25  Hristian Kirtchev  <kirtchev@adacore.com>

* opt.adb, bcheck.adb: Minor reformatting.

From-SVN: r230876

[multiple changes]

2015-11-25  Jerome Lambourg  <lambourg@adacore.com>

* init.c: Enable the signal trampoline on x86_64-vx7
* sigtramp-vxworks-target.inc: Implement the signal trampoline
for x86_64
* tracebak.c: Remove the hook to use the generic
unwinder on x86_64-vx7.

2015-11-25  Vincent Celier  <celier@adacore.com>

* gnatcmd.adb: When "gnat name -P" is called, invoke gprname
directly if available.

From-SVN: r230875

init.c (__gnat_is_stack_guard): Do not use mach calls for IOS simulator.

2015-11-25  Tristan Gingold  <gingold@adacore.com>

* init.c (__gnat_is_stack_guard): Do not use mach calls for
IOS simulator.

From-SVN: r230874