From-SVN: r230948

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

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

From-SVN: r230947

	* 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

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

	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

	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

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

From-SVN: r230935

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

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

From-SVN: r230926

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

	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

From-SVN: r230921

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
	* g++.dg/addr_builtin-1.C: New test (accidentally omitted from
	initial commit).
	* gcc.dg/addr_builtin-1.c: Same.

From-SVN: r230916

	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

From-SVN: r230914

[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
	(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

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.

From-SVN: r230908

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

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

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, 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

From-SVN: r230898

	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.

From-SVN: r230896

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

From-SVN: r230895

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

	* 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

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

/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