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

re PR fortran/68227 (ICE on using variable limit in forall header (gfc_do_allocate))

2015-11-25  Steven G. Kargl  <kargl@gcc.gnu.org>

    PR fortran/68227
    * trans-stmt.c (gfc_do_allocate): Convert gcc_assert argument into
    into part of conditional statement.

From-SVN: r230873

re PR fortran/63858 (fixed form OpenACC directive ICE with -fopenacc -fopenmp)

PR fortran/63858

gcc/fortran/
* scanner.c (skip_oacc_attribute): Remove continue_flag parameter.
Rename as ...
(skip_free_oacc_sentinel): ... this.
(skip_omp_attribute): Remove continue_flag parameter. Rename as ...
(skip_free_omp_sentinel): ... this.
(skip_free_comments): Update to call skip_free_oacc_sentinel and
skip_free_omp_sentinel.
(skip_fixed_omp_sentinel): New function.
(skip_fixed_oacc_sentinel): New function.
(skip_fixed_comments): Fix mix of OpenACC and OpenMP sentinels in
continuation.

gcc/testsuite/
* goacc/omp-fixed.f: New test.
* goacc/omp.f95: Add check for mis-matched omp and acc continuations.

Co-Authored-By: Cesar Philippidis <cesar@codesourcery.com>
From-SVN: r230872

re PR c++/68385 (ICE building libstdc++ on arm-none-eabi)

PR c++/68385

* tree.c (integer_zerop, integer_onep, integer_each_onep)
(integer_all_onesp, integer_minus_onep, integer_pow2p)
(integer_nonzerop, integer_truep, tree_log2, tree_floor_log2)
(real_zerop, real_onep, real_minus_onep): Remove STRIP_NOPS.

From-SVN: r230871

re PR middle-end/68528 ([5 Only] Wrong constant folding)

2015-11-25  Richard Biener  <rguenther@suse.de>

PR middle-end/68528
* fold-const.c (fold_binary_loc): Do not call negate_expr_p
on stripped operands.

* gcc.dg/torture/pr68528.c: New testcase.

From-SVN: r230870

nvptx.c (walk_args_for_params): Delete.

* config/nvptx/nvptx.c (walk_args_for_params): Delete.
(nvptx_declare_function_name): Move assignments next to register
declarations, and process params here.

From-SVN: r230869

Improve tests for valid values of iostream bitmask types

* testsuite/27_io/ios_base/types/fmtflags/case_label.cc: Explicitly
check minimum and maximum values, and size of underlying type.
* testsuite/27_io/ios_base/types/iostate/case_label.cc: Likewise.
* testsuite/27_io/ios_base/types/openmode/case_label.cc: Likewise.

From-SVN: r230868

rs6000.c (rs6000_declare_alias): Rename and globalize both the symbol and the "dot" symbol for function descriptors.

* config/rs6000/rs6000.c (rs6000_declare_alias): Rename and globalize
both the symbol and the "dot" symbol for function descriptors.  Fix
inversion for rename of symbols with dollar sign.

From-SVN: r230867

Improve verification of loop->latch in verify_loop_structure

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: r230866

Port libvtv to Solaris

libstdc++-v3:
* acinclude.m4 (GLIBCXX_ENABLE_VTABLE_VERIFY) <solaris2*>: Use
-Wl,-R in VTV_CXXLINKFLAGS.
* configure: Regenerate.

* testsuite/18_support/bad_exception/23591_thread-1.c: Use
-fvtable-verify=none on Solaris 12+.

libgcc:
* Makefile.in (VTV_CFLAGS): New variable.
(vtv_start$(objext), vtv_end$(objext), vtv_end$(objext))
(vtv_start_preinit$(objext), vtv_end_preinit$(objext)): Use it.
* config.host (*-*-solaris2*): Add t-crtstuff-pic to tmake_file.
Add vtv_start.o, vtv_end.o, vtv_start_preinit.o, vtv_end_preinit.o
to extra_parts if $enable_vtable_verify = yes.

libvtv:
* configure.tgt (*-*-solaris2.[1-9]*): Declare supported.
* configure.ac: Call AC_USE_SYSTEM_EXTENSIONS.
<*-*-solaris2*>: Check for init priority support.
Check for getexecname, __fortify_fail, _obstack_begin.
(VTV_NO_OBSTACK): New conditional.
* configure: Regenerate.
* Makefile.am [VTV_NO_OBSTACK] (obstack.c): Use new condition.
Create empty config.h
* Makefile.in: Regenerate.

* vtv_rts.cc [HAVE_GETEXECNAME] (program_invocation_name): New
variable.
(read_section_offset_and_length) [HAVE_GETEXECNAME]: Set it.
(dl_iterate_phdr_callback) [HAVE_GETEXECNAME]: Set it.

(__fortify_fail): Wrap in HAVE___FORTIFY_FAIL
[!HAVE___FORTIFY_FAIL]: Provide non-Cygwin implementation.

(read_section_offset_and_length): Assert sh_size >= VTV_PAGE_SIZE.
(iterate_modules): Fix typo.
Use VTV_PAGE_SIZE.
(dl_iterate_phdr_callback): Fix typo.
Use VTV_PAGE_SIZE.
(__VLTChangePermission): Fix typos.

include:
* vtv-change-permission.h (VTV_PAGE_SIZE) [__sun__ && __svr4__ &&
__sparc__]: Define.

gcc:
* config/sol2.h (SUPPORTS_INIT_PRIORITY): Move up.
(STARTFILE_VTV_SPEC, ENDFILE_VTV_SPEC): Define.
(STARTFILE_SPEC): Use %(startfile_vtv).
(ENDFILE_SPEC): Use %(endfile_vtv).
(SUBTARGET_EXTRA_SPECS): Handle STARTFILE_VTV_SPEC,
ENDFILE_VTV_SPEC.

* gcc.c (LINK_COMMAND_SPEC): Move VTABLE_VERIFICATION_SPEC after %{L*}.

From-SVN: r230865

Remove broken ifcvt code for speculating memory writes

* ifcvt.c (noce_mem_write_may_trap_or_fault_p,
noce_can_store_speculate): Delete.
(noce_process_if_block): Don't try to handle single MEM stores.
* rtl.h (memory_must_be_modified_in_insn_p): Don't declare.
* alias.c (memory_must_be_modified_in_insn_p): Delete.

From-SVN: r230864

re PR c++/58910 (std::Tuple_impl is non constexpr when using identical userdefined structs as template-args)

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

PR c++/58910
* g++.dg/cpp0x/constexpr-tuple2.C: New.

From-SVN: r230860

[RTL-ifcvt] PR rtl-optimization/68435 Allow (c ? x++ : x--) form

PR rtl-optimization/68435
* ifcvt.c (noce_try_cmove_arith): Skip final insn when checking
for conflicts between a, b and the set destinations.

* gcc.dg/pr68435.c: New test.

From-SVN: r230859

re PR tree-optimization/68517 (ICE in tree-vect-data-refs.c:2751)

2015-11-25  Richard Biener  <rguenther@suse.de>

PR tree-optimization/68517
* tree-vect-data-refs.c (vect_analyze_data_ref_accesses):
Properly handle zero-sized types.

* gcc.dg/torture/pr68517.c: New testcase.

From-SVN: r230858

ipa-inline-analysis.c: Include gimplify.h (set_cond_stmt_execution_predicate...

* ipa-inline-analysis.c: Include gimplify.h
(set_cond_stmt_execution_predicate,
set_switch_stmt_execution_predicate): Be sure to not leak locations
to function body.

From-SVN: r230857

re PR target/67089 (Integer overflow checks not optimized on x86/x86_64)

PR target/67089
* tree-ssa-math-opts.c (uaddsub_overflow_check_p,
match_uaddsub_overflow): New functions.
(pass_optimize_widening_mul::execute): Call match_uaddsub_overflow.

* gcc.dg/pr67089-1.c: New test.
* gcc.dg/pr67089-2.c: New test.
* gcc.dg/pr67089-3.c: New test.
* gcc.dg/pr67089-4.c: New test.
* gcc.dg/pr67089-5.c: New test.
* gcc.dg/pr67089-6.c: New test.
* gcc.dg/pr67089-7.c: New test.

From-SVN: r230856

re PR tree-optimization/68492 (internal compiler error: in vect_is_simple_use, at tree-vect-stmts.c:8266)

2015-11-25  Richard Biener  <rguenther@suse.de>

PR tree-optimization/68492
* tree-vect-slp.c (vect_build_slp_tree): Consistently build up
op from scalars after operand swapping.

From-SVN: r230855

re PR tree-optimization/68502 ([i686] spec2000/179.art runfails after r222914)

2015-11-25  Richard Biener  <rguenther@suse.de>

PR tree-optimization/68502
* tree-vect-data-refs.c (vect_analyze_group_access_1): Restore
check that the step is a multiple of the type size.

* gcc.dg/vect/pr68502-1.c: New testcase.
* gcc.dg/vect/pr68502-2.c: Likewise.

From-SVN: r230854

2015-11-24  Michael Collison  <michael.collison@linaro.org>

* config/aarch64/aarch64-simd.md (widen_ssum, widen_usum)
(aarch64_<ANY_EXTEND:su><ADDSUB:optab>w<mode>_internal): New patterns
* config/aarch64/iterators.md (Vhalf, VDBLW): New mode attributes.
* gcc.target/aarch64/saddw-1.c: New test.
* gcc.target/aarch64/saddw-2.c: New test.
* gcc.target/aarch64/uaddw-1.c: New test.
* gcc.target/aarch64/uaddw-2.c: New test.
* gcc.target/aarch64/uaddw-3.c: New test.
* lib/target-support.exp
(check_effective_target_vect_widen_sum_hi_to_si_pattern):
Add aarch64 to list of support targets.

From-SVN: r230853

Daily bump.

From-SVN: r230850

Fix typos from last checkin.

From-SVN: r230847

frame-header-4.c: New test.

2015-11-24  Steve Ellcey  <sellcey@imgtec.com>

* gcc.target/mips/frame-header-4.c: New test.

From-SVN: r230846

frame-header-opt.c (gate): Check for optimize > 0.

2015-11-24  Steve Ellcey  <sellcey@imgtec.com>

* frame-header-opt.c (gate): Check for optimize > 0.
(has_inlined_assembly): New function.
(needs_frame_header_p): Remove is_leaf_function check,
add argument type check.
(callees_functions_use_frame_header): Add is_leaf_function
and has_inlined_assembly calls..
(set_callers_may_not_allocate_frame): New function.
(frame_header_opt): Add is_leaf_function call, add
set_callers_may_not_allocate_frame call.
* config/mips/mips.c (mips_compute_frame_info): Add check
to see if callee saved regs can be put in frame header.
(mips_expand_prologue): Add check to see if step1 is zero,
fix cfa restores when using frame header to store regs.
(mips_can_use_return_insn): Check to see if registers are
stored in frame header.
* config/mips/mips.h (machine_function): Add
callers_may_not_allocate_frame and
use_frame_header_for_callee_saved_regs fields.

From-SVN: r230845

shrink-wrap: Fix thinko (PR68520)

Part of the shrink-wrapping algorithm has this comment:

  /* Now see if we can put the prologue at the start of PRO.  Putting it
     there might require duplicating a block that cannot be duplicated,
     or in some cases we cannot insert the prologue there at all.  If PRO
     wont't do, try again with the immediate dominator of PRO, and so on.

     The blocks that need duplicating are those reachable from PRO but
     not dominated by it.  We keep in BB_WITH a bitmap of the blocks
     reachable from PRO that we already found, and in VEC a stack of
     those we still need to consider (to find successors).  */

Two of the cases that push to that stack do not actually check the
bitmap first.  Either I thought those blocks could not be on the stack
already, or more likely I didn't think and it just didn't crash during
any testing.  But of course those blocks *can* already be on the stack
(if you have a hideous loop structure), and then we end up with the
same block on the stack more than once.  This is harmless, except that
(like in the PR) this can overflow the stack.

This fixes it, by doing the necessary bitmap checks before pushing.

PR rtl-optimization/68520
* shrink-wrap.c (try_shrink_wrapping): Don't push a block to VEC if
its bit was already set in BB_WITH.

From-SVN: r230843

c-parser.c (c_parser_oacc_declare): Replace "ifdef ENABLE_OFFLOADING" with "if (ENABLE_OFFLOADING)".

gcc/c/
* c-parser.c (c_parser_oacc_declare): Replace "ifdef ENABLE_OFFLOADING"
with "if (ENABLE_OFFLOADING)".
gcc/cp/
* parser.c (cp_parser_oacc_declare): replace "ifdef enable_offloading"
with "if (enable_offloading)".

From-SVN: r230842

alias.c (get_alias_set): Before checking TYPE_ALIAS_SET_KNOWN_P double check that type is main variant.

* alias.c (get_alias_set): Before checking TYPE_ALIAS_SET_KNOWN_P
double check that type is main variant.
* tree.c (build_variant_type_copy): Clear TYPE_ALIAS_SET when producing
variant.
(verify_type_variant): Verify that variants have no
TYPE_ALIAS_SET_KNOWN_P set
* tree-streamer-out.c (pack_ts_type_common_value_fields): Reorder
streaming so constant fields come first; stream TYPE_ALIAS_SET==0
only for main variants; stream TYPE_ALIAS_SET as a bit.
* tree-streamer-in.c (unpack_ts_type_common_value_fields): Update
accordingly.

From-SVN: r230838

tree.c (make_vector_type): Properly compute canonical type of the main variant.

* tree.c (make_vector_type): Properly compute canonical type of the
main variant.
(verify_type): Verify that TYPE_CANONICAL of TYPE_MAIN_VARIANT is
a main variant.

From-SVN: r230837

nvptx.c (maybe_split_mode): Return new mode or VOIDmode, don't alter incoming mode.

* config/nvptx/nvptx.c (maybe_split_mode): Return new mode or
VOIDmode, don't alter incoming mode.
(nvptx_split_reg_p): Delete.
(write_one_arg, walk_args_for_param, nvptx_declare_function_name,
write_func_decl_from_insn, nvptx_output_call_insn): Adjust
maybe_split_mode calls.
(nvptx_print_operand): Use maybe_split_mode.

From-SVN: r230836

lto-streamer-in.c (lto_read_body_or_constructor): Set TYPE_CANONICAL only for types where LTO sets them.

* lto-streamer-in.c (lto_read_body_or_constructor): Set TYPE_CANONICAL
only for types where LTO sets them.
* tree.c (build_array_type_1): Do ont set TYPE_CANONICAL for LTO.
(make_vector_type): Likewise.
(gimple_canonical_types_compatible_p): Use canonical_type_used_p.
* tree.h (canonical_type_used_p): New inline.
* alias.c (get_alias_set): Handle structural equality for all
types that pass canonical_type_used_p.
(record_component_aliases): Look through all types with
record_component_aliases for possible pointers; sanity check that
the alias sets match.

* lto.c (iterative_hash_canonical_type): Recruse for all types
which pass !canonical_type_used_p.
(gimple_register_canonical_type_1): Sanity check we do not compute
canonical type of anything with !canonical_type_used_p.
(gimple_register_canonical_type): Skip all types that are
!canonical_type_used_p

From-SVN: r230835

rs6000.md (lround<mode>di2): Remove constraints.

2015-11-24  Michael Meissner  <meissner@linux.vnet.ibm.com>

* config/rs6000/rs6000.md (lround<mode>di2): Remove constraints.

From-SVN: r230834

tree.c (free_node): New function.

* tree.c (free_node): New function.
(type_hash_canon): Use it.
* tree.h (free_node): Declare.
* lto.c (unify_scc): Use free_node.

From-SVN: r230833

re PR fortran/68486 (187.facerec in SPEC CPU 2000 failed to build)

2015-11-24  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/68486
* simplify.c (gfc_simplify_cshift): Allow all EXPR_*.

2015-11-24  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/68486
* gfortran.dg/simplify_cshift_3.f90

From-SVN: r230832

fix ChangeLog

From-SVN: r230831

fix ChangeLog

From-SVN: r230830

rs6000.md (UNSPEC_XSRDPI): New unspec.

2015-11-24  David Edelsohn  <dje.gcc@gmail.com>
    Michael Meissner  <meissner@linux.vnet.ibm.com>

* config/rs6000/rs6000.md (UNSPEC_XSRDPI): New unspec.
(Fv2): New mode attribute to be used when ISA 2.06 instructions
are used on SF/DF values.
(abs<mode>2_fpr): Use <Fv2> instead of <Fv>.
(nabs<mode>2_fpr): Likewise.
(neg<mode>2_fpr): Likewise.
(copysign<mode>3_fcpsgn): Likewise.
(smax<mode>3_vsx): Likewise.
(smin<mode>3_vsx): Likewise.
(floatsi<mode>2_lfiwax): Likewise.
(floatunssi<mode>2_lfiwz): Likewise.
(fctiwz_<mode>): Likewise.
(fctiwuz_<mode>): Likewise.
(btrunc<mode>2): Likewise.
(ceil<mode>2): Likewise.
(floor<mode>2): Likewise.
(xsrdpi<mode>): Add support for the lround function.
(lround<mode>2): Likewise.

Co-Authored-By: Michael Meissner <meissner@linux.vnet.ibm.com>
From-SVN: r230829

re PR c++/68278 (internal compiler error with C++14 polymorphic lambda and type alias)

2015-11-24  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/68278
* g++.dg/cpp1y/pr68278.C: New.

From-SVN: r230828

re PR c++/68388 (incomplete type bug when using decltype)

2015-11-24  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/68388
* g++.dg/cpp1y/pr68388.C: New.

From-SVN: r230827

fix PR67984: check for constants in rename map

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>
From-SVN: r230826

move all declarations to a same .h file

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>
From-SVN: r230825

DWARF: materialize subprogram renamings in Ada as imported declarations

... so that debugger users can reference them instead of the renamed
subprograms.  This is in accordance with the DWARF specification: the
section 3.2.3 (Imported (or Renamed) Declaration Entities) allows
DW_TAG_imported_declaration DIEs to be used "as a general means to
rename or provide an alias for an entity regardless of the context in
which the importing declaration or the imported entity occur." (wording
from the DWARFv3 and DWARFv4 specifications, allowed in DWARFv2).

gcc/ada/ChangeLog:

* gcc-interface/utils.c (gnat_write_global_declarations): Output
debugging information for top-level imported declarations.

gcc/ChangeLog:

* dwarf2out.c (gen_decl_die): Generate DW_TAG_imported_* instead
of DW_TAG_namespace for IMPORTED_DECL declarations.  Call
dwarf2out_imported_module_or_decl_1 for all DWARF versions as
this function already takes care of checking what it can emit.

Bootstrapped, regtested and checked with GDB's testsuite on
x86_64-linux.

From-SVN: r230821

[AArch64] Documentation fix for -fpic

gcc/
* doc/invoke.texi (-fpic): Add the AArch64 limit.
(-fPIC): Add AArch64.

From-SVN: r230819

re PR rtl-optimization/68392 (ICE: SIGSEGV in update_uses (fwprop.c:896) with -fno-checking)

PR rtl-optimization/68392
* g++.dg/pr68392.C: New test.

From-SVN: r230818

Allow pass_lim to run outside pass_tree_loop

2015-11-24  Tom de Vries  <tom@codesourcery.com>

* tree-ssa-loop-im.c (tree_ssa_lim): Make static.
(pass_lim::execute): Allow to run outside pass_tree_loop.

From-SVN: r230815

[PATCH][AArch64] Improve add immediate expansion

gcc/

* gcc/config/aarch64/aarch64.md (add<mode>3):
Block early expansion into 2 add instructions.
(add<mode>3_pluslong): New pattern to combine complex
immediates into 2 additions.

From-SVN: r230814

rs6000: Fix for and_operand oversight (PR68332, PR67677)

Calling rs6000_is_valid_and_mask on a reg instead of on a const_int is
not a good idea, as PR68332 and PR67677 as well as testing with
--enable-checking=yes,rtl show.  Fix this.

PR target/66217
PR target/67677
PR target/68332
* config/rs6000/predicates.md (and_operand): Check that the operand
is a const_int before calling rs6000_is_valid_and_mask.

From-SVN: r230811

* gcc.dg/sso/dump.h: Force IO to be putchar function call on nvptx.

From-SVN: r230810

Testcase for PR rtl-optimization/68381

PR rtl-optimization/68381
* gcc.c-torture/execute/pr68381.c: New test.

From-SVN: r230809

Handle C++11 <math.h> overloads on Solaris 12

* acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): New test.
* configure.ac: Use it.
* configure: Regenerate.
* config.h.in: Regenerate.

* include/c_global/cmath [__cplusplus >= 201103L]
(std::fpclassify): Wrap in !__CORRECT_ISO_CPP11_MATH_H_PROTO.
(std::isfinite): Likewise.
(std::isinf): Likewise.
(std::isnan): Likewise.
(std::isnormal): Likewise.
(std::signbit): Likewise.
(std::isgreater): Likewise.
(std::isgreaterequal): Likewise.
(std::isless): Likewise.
(std::islessequal): Likewise.
(std::islessgreater): Likewise.
(std::isunordered): Likewise.
(std::acosh): Likewise.
(std::asinh): Likewise.
(std::atanh): Likewise.
(std::cbrt): Likewise.
(std::copysign): Likewise.
(std::erf): Likewise.
(std::erfc): Likewise.
(std::exp2): Likewise.
(std::expm1): Likewise.
(std::fdim): Likewise.
(std::fma): Likewise.
(std::fmax): Likewise.
(std::fmin): Likewise.
(std::hypot): Likewise.
(std::ilogb): Likewise.
(std::lgamma): Likewise.
(std::llrint): Likewise.
(std::llround): Likewise.
(std::log1p): Likewise.
(std::log2): Likewise.
(std::logb): Likewise.
(std::lrint): Likewise.
(std::lround): Likewise.
(std::nearbyint): Likewise.
(std::nextafter): Likewise.
(std::nexttoward): Likewise.
(std::remainder): Likewise.
(std::remquo): Likewise.
(std::rint): Likewise.
(std::round): Likewise.
(std::scalbln): Likewise.
(std::scalbn): Likewise.
(std::tgamma): Likewise.
(std::trunc): Likewise.
* include/tr1/cmath [_GLIBCXX_USE_C99_MATH_TR1] (std::tr1::acosh):
Wrap in !__CORRECT_ISO_CPP11_MATH_H_PROTO.
(std::tr1::asinh): Likewise.
(std::tr1::atanh): Likewise.
(std::tr1::cbrt): Likewise.
(std::tr1::copysign): Likewise.
(std::tr1::erf): Likewise.
(std::tr1::erfc): Likewise.
(std::tr1::exp2): Likewise.
(std::tr1::expm1): Likewise.
(std::tr1::fabs): Likewise.
(std::tr1::fdim): Likewise.
(std::tr1::fma): Likewise.
(std::tr1::fmax): Likewise.
(std::tr1::fmin): Likewise.
(std::tr1::hypot): Likewise.
(std::tr1::ilogb): Likewise.
(std::tr1::lgamma): Likewise.
(std::tr1::llrint): Likewise.
(std::tr1::llround): Likewise.
(std::tr1::log1p): Likewise.
(std::tr1::log2): Likewise.
(std::tr1::logb): Likewise.
(std::tr1::lrint): Likewise.
(std::tr1::lround): Likewise.
(std::tr1::nearbyint): Likewise.
(std::tr1::nextafter): Likewise.
(std::tr1::nexttoward): Likewise.
(std::tr1::remainder): Likewise.
(std::tr1::remquo): Likewise.
(std::tr1::rint): Likewise.
(std::tr1::scalbln): Likewise.
(std::tr1::scalbn): Likewise.
(std::tr1::tgamma): Likewise.
(std::tr1::trunc): Likewise.
(std::tr1::pow): Likewise.

* testsuite/26_numerics/headers/cmath/c99_classification_macros_c.cc:
Restrict dg-xfail-if, dg-excess-errors to *-*-solaris2.1[01]*.

From-SVN: r230807

[AArch64][v2] Improve comparison with complex immediates followed by branch/cset

* config/aarch64/aarch64.md (*condjump): Rename to...
(condjump): ... This.
(*compare_condjump<mode>): New define_insn_and_split.
(*compare_cstore<mode>_insn): Likewise.
(*cstore<mode>_insn): Rename to...
(cstore<mode>_insn): ... This.
* config/aarch64/iterators.md (CMP): Handle ne code.
* config/aarch64/predicates.md (aarch64_imm24): New predicate.

* gcc.target/aarch64/cmpimm_branch_1.c: New test.
* gcc.target/aarch64/cmpimm_cset_1.c: Likewise.

From-SVN: r230805

Move ptrace.h to appropriate place.

libsanitizer/

* include/system/linux/asm/ptrace.h: Move to ...
* include/system/asm/ptrace.h: ... this.

From-SVN: r230804

Fix PR68497 (ICE with -fno-checking)

gcc/

PR target/68497
* config/i386/i386.c (output_387_binary_op): Fix assertion for
-fno-checking case.

gcc/testsuite/

PR target/68497
* gcc.target/i386/pr68497.c: New test.

From-SVN: r230803

remove val_ssa_equiv_hash_traits

gcc/ChangeLog:

2015-11-24  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* tree-ssa-uncprop.c (struct val_ssa_equiv_hash_traits): Remove.
(val_ssa_equiv_hash_traits::remove): Likewise.
(pass_uncprop::execute): Adjust.

From-SVN: r230802

destroy values as well as keys when removing them from hash maps

gcc/ChangeLog:

2015-11-24  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* hash-map-traits.h (simple_hashmap_traits ::remove): call
destructors on values that are being removed.
* mem-stats.h (hash_map): Pass type of values to
simple_hashmap_traits.
* tree-sra.c (sra_deinitialize): Remove work around for hash
maps not destructing values.
* genmatch.c (sinfo_hashmap_traits): Adjust.
* tree-ssa-uncprop.c (val_ssa_equiv_hash_traits): Likewise.

From-SVN: r230801

[AARCH64][PATCH 3/3] Adding tests to check proper error reporting of out of...

[AARCH64][PATCH 3/3] Adding tests to check proper error reporting of out
of bounds accesses to vmulx_lane* NEON intrinsics

gcc/testsuite/

* gcc.target/aarch64/advsimd-intrinsics/vmulx_lane_f32_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulx_lane_f64_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulx_laneq_f32_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulx_laneq_f64_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxd_lane_f64_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxd_laneq_f64_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxq_lane_f32_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxq_lane_f64_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxq_laneq_f32_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxq_laneq_f64_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxs_lane_f32_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxs_laneq_f32_indices_1.c:
New.

From-SVN: r230800

[cfgloop] PR middle-end/68375: Restructure get_loop_body_in_bfs_order to handle loops with only a header

PR middle-end/68375
* cfgloop.c (get_loop_body_in_bfs_order): Restructure loop to avoid
bogus assertion.

* gcc.dg/pr68375.c: New test.

From-SVN: r230798

re PR target/68483 (gcc 5.2: suboptimal code compared to 4.9)

PR target/68483
* tree-vect-generic.c (lower_vec_perm): If VEC_PERM_EXPR
is valid vec_shr pattern, don't lower it even if can_vec_perm_p
returns false.
* optabs.c (shift_amt_for_vec_perm_mask): Return NULL_RTX
whenever first is nelt or above.  Don't mask expected with
2 * nelt - 1.

* gcc.target/i386/pr68483-1.c: New test.
* gcc.target/i386/pr68483-2.c: New test.

From-SVN: r230797

re PR c/68337 ([MPX] memcpy() for arrays with function pointers results in huge resource usage and binaries)

gcc/

PR c/68337
* gimple-fold.c: Include ipa-chkp.h.
(gimple_fold_builtin_memory_op): Don't fold call if we
are going to instrument it and it may copy pointers.

gcc/testsuite/

PR c/68337
* gcc.target/i386/mpx/pr68337-1.c: New test.
* gcc.target/i386/mpx/pr68337-2.c: New test.

From-SVN: r230796

[RTL-ree] PR rtl-optimization/68194: Restrict copy instruction in presence of conditional moves

PR rtl-optimization/68194
PR rtl-optimization/68328
PR rtl-optimization/68185
* ree.c (combine_reaching_defs): Reject copy_needed case if
copies_list is not empty.

* gcc.c-torture/execute/pr68185.c: New test.
* gcc.c-torture/execute/pr68328.c: Likewise.

From-SVN: r230795

sem_ch3.adb, [...]: Minor reformatting, rewording, and typo corrections.

2015-11-24  Gary Dismukes  <dismukes@adacore.com>

* sem_ch3.adb, sem_type.adb, sem_ch7.adb, sem_ch9.adb, checks.adb,
sem_prag.adb, contracts.adb, g-strhas.ads, sem_ch6.adb: Minor
reformatting, rewording, and typo corrections.

From-SVN: r230794

re PR middle-end/68221 (libgomp reduction-11/12 failures)

2015-11-24  Richard Biener  <rguenther@suse.de>

PR middle-end/68221
* tree-ssa-sccvn.c (copy_reference_ops_from_ref): Properly
use mem_ref_offset.

From-SVN: r230793

decl.c (gnat_to_gnu_entity): In ASIS mode, do a minimal translation for root types with discriminants.

* gcc-interface/decl.c (gnat_to_gnu_entity) <Concurrent types>: In
ASIS mode, do a minimal translation for root types with discriminants.
* gcc-interface/trans.c (gnat_to_gnu) <N_Subunit>: Move around.
<N_Entry_Body, N_Protected_Body, N_Task_Body>: Likewise.  In ASIS mode,
process the declarations attached to the body.

From-SVN: r230792

trans.c (gnat_to_gnu): In type_annotate_only mode, do not build a NULL_EXPR for an N_Expanded_Name.

* gcc-interface/trans.c (gnat_to_gnu): In type_annotate_only mode, do
not build a NULL_EXPR for an N_Expanded_Name.

From-SVN: r230791

Fix libsanitizer build with old kernel headers on ARM after r230739.

libsanitizer/

* include/system/linux/asm/ptrace.h: New header.

From-SVN: r230790

decl.c (is_cplusplus_method): Check that the type of the first parameter (indirectly) has C++ convention too.

* gcc-interface/decl.c (is_cplusplus_method): Check that the type of
the first parameter (indirectly) has C++ convention too.

From-SVN: r230788

combine: Handle aborts in is_parallel_of_n_reg_sets (PR68381)

Some users of is_parallel_of_n_reg_sets disregard the clobbers in a
parallel after it has returned "yes, this is a parallel of N sets and
maybe some clobbers".  But combine uses a clobber of const0_rtx to
indicate substitution failure, so this leads to disaster.

Fix this by checking for such special clobbers in is_parallel_of_n_reg_sets.

PR rtl-optimization/68381
* combine.c (is_parallel_of_n_reg_sets): Return false if the pattern
is poisoned.

From-SVN: r230786

[PATCH] Fix invalid redundant extension elimination for rl78 port

* ree.c (add_removable_extension): Avoid mis-optimizing cases where
the source/dest of the target extension require a different number of
hard registers.
(combine_set_extension): Remove #if 0 code.

Co-Authored-By: Jeff Law <law@redhat.com>
From-SVN: r230785

* gcc.c-torture/execute/lto-tbaa-1.c: New testcase.

From-SVN: r230784

Daily bump.

From-SVN: r230783

Fix missing ChangeLog entry for Graphite head files fix.

From-SVN: r230780

fix PR68314: revert all patches touching the construction of the original schedule

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>
From-SVN: r230778

re PR go/68496 ([libgo] reflect test fails on Linux x86-64)

PR go/68496
    reflect: Allocate space for FFI functions returning a zero-sized type.

    The libffi library does not understand zero-sized types.  We represent
    them as a struct with a single field of type void.  If such a type is
    returned from a function, libffi will copy 1 byte of data.  Allocate
    space for that byte, although we won't use it.

    Fixes https://gcc.gnu.org/PR68496.

    Reviewed-on: https://go-review.googlesource.com/17175

From-SVN: r230776

Fix PR objc/68438 (uninitialized source ranges)

gcc/c/ChangeLog:
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.

gcc/testsuite/ChangeLog:
PR objc/68438
* objc.dg/plugin: New subdirectory.
* objc.dg/plugin/diagnostic-test-expressions-1.m: New test file.
* objc.dg/plugin/plugin.exp: New file, based on
gcc.dg/plugin/plugin.exp.

From-SVN: r230775