PR c/68024
	* c-decl.c (start_function): Warn about vararg functions without
	a prototype.

	* gcc.dg/pr68024.c: New test.

From-SVN: r229131

	gcc/
	* omp-low.c (check_omp_nesting_restrictions): Check OpenACC loop
	nesting.

	testsuite/
	* c-c++-common/goacc/clauses-fail.c: Adjust errors.
	* c-c++-common/goacc/sb-1.c: Adjust errors.
	* c-c++-common/goacc/sb-3.c: Adjust errors.
	* c-c++-common/goacc/loop-1.c: Adjust errors.
	* c-c++-common/goacc/nesting-1.c: Adjust errors.
	* c-c++-common/goacc-gomp/nesting-fail-1.c: Adjust errors.
	* c-c++-common/goacc-gomp/nesting-1.c: Adjust errors.

From-SVN: r229129

gcc/

	* doc/tm.texi: Regenerated.
	* doc/tm.texi.in (TARGET_VECTORIZE_GET_MASK_MODE): New.
	* stor-layout.c (layout_type): Use mode to get vector mask size.
	* target.def (get_mask_mode): New.
	* targhooks.c (default_get_mask_mode): New.
	* targhooks.h (default_get_mask_mode): New.
	* gcc/tree-vect-stmts.c (get_same_sized_vectype): Add special case
	for boolean vector.
	* tree.c (MAX_BOOL_CACHED_PREC): New.
	(nonstandard_boolean_type_cache): New.
	(build_nonstandard_boolean_type): New.
	(make_vector_type): Vector mask has no canonical type.
	(build_truth_vector_type): New.
	(build_same_sized_truth_vector_type): New.
	(truth_type_for): Support vector masks.
	* tree.h (VECTOR_BOOLEAN_TYPE_P): New.
	(build_truth_vector_type): New.
	(build_same_sized_truth_vector_type): New.
	(build_nonstandard_boolean_type): New.
	* tree-cfg.c (verify_gimple_comparison) Require boolean
	vector type for vector comparison.
	(verify_gimple_assign_ternary): Likewise.
	* optabs.c (expand_vec_cond_expr): Accept boolean vector as
	condition operand.
	* tree-vect-stmts.c (vectorizable_condition): Use boolean
	vector type for vector comparison.
	* tree-vect-generic.c (elem_op_func): Add new operand to hold
	vector type.
	(do_unop): Adjust to modified function type.
	(do_binop): Likewise.
	(do_plus_minus): Likewise.
	(do_negate); Likewise.
	(expand_vector_piecewise): Likewise.
	(do_cond): Likewise.
	(do_compare): Use comparison instead of condition.
	(expand_vector_divmod): Use boolean vector type for comparison.
	(expand_vector_operations_1): Skip scalar mask operations.

gcc/c

	* c-typeck.c (build_conditional_expr): Use boolean vector
	type for vector comparison.
	(build_vec_cmp): New.
	(build_binary_op): Use build_vec_cmp for comparison.

gcc/cp

	* call.c (build_conditional_expr_1): Use boolean vector
	type for vector comparison.
	* typeck.c (build_vec_cmp): New.
	(cp_build_binary_op): Use build_vec_cmp for comparison.

gcc/testsuite/

	* g++.dg/ext/vector22.C: Allow VEC_COND_EXPR.

From-SVN: r229128

gcc/

	* omp-low.c (simd_clone_create): Set in_other_partition
	for created clones.

gcc/testsuite/

	* gcc.dg/lto/simd-function_0.c: New test.

From-SVN: r229127

	* doc/extend.exp (Local Register Variables): Rewrite.

From-SVN: r229124

This patch makes sure that, for every simplification that uses
fold_strip_sign_ops, there are associated match.pd rules for the
leaf sign ops, i.e. abs, negate and copysign.  A follow-on patch
will add a pass to handle more complex cases.

Tested on x86_64-linux-gnu, aarch64-linux-gnu and arm-linux-gnueabi.

gcc/
	* match.pd: Add rules to simplify ccos, ccosh, hypot, copysign
	and x*x in cases where the operands are sign ops.  Extend these
	rules to handle copysign as a sign op (including for cos, cosh
	and pow, which already treated negate and abs as sign ops).

From-SVN: r229123

re PR target/68018 (ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign)

	PR target/68018
	* config/i386/i386.c (ix86_compute_frame_layout): Realign the stack
	for 64-bit MS_ABI targets also when default incoming stack boundary
	is overriden.

testsuite/ChangeLog:

	PR target/68018
	* gcc.target/i386/pr68018.c: New test.

From-SVN: r229120

tree-ssa-sccvn.c (cond_stmts_equal_p): Compare two GIMPLE cond stmts, enhanced and split out from ...

2015-10-21  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.c (cond_stmts_equal_p): Compare two GIMPLE
	cond stmts, enhanced and split out from ...
	(vn_phi_eq): ... here.

From-SVN: r229119

2015-10-21  Richard Biener  <rguenther@suse.de>

	PR middle-end/68031
	* fold-const.c: Include tree-ssa-operands.h and tree-into-ssa.h.
	(tree_ssa_name_nonnegative_warnv_p): Fold into ...
	(tree_single_nonnegative_warnv_p): ... here.  For SSA names
	make sure they are not registered for update.

	* gcc.dg/torture/pr68031.c: New testcase.

From-SVN: r229118

2015-10-21  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/68026
	* tree-ssa-ccp.c (get_value_for_expr): Zero-extend mask for
	unsigned VARYING values.

	* gcc.dg/tree-ssa/ssa-ccp-39.c: New testcase.

From-SVN: r229117

libsanitizer/

	* HOWTO_MERGE: New file.

From-SVN: r229116

sanitizer_stacktrace.cc (GetCanonicFrame): Assume we compiled code with GCC when extracting the caller PC for ARM if...

libsanitizer/

	* sanitizer_common/sanitizer_stacktrace.cc (GetCanonicFrame): Assume we
	compiled code with GCC when extracting the caller PC for ARM if no
	valid frame pointer is available.

From-SVN: r229115

re PR bootstrap/63888 (bootstrap failed when configured with -with-build-config=bootstrap-asan --disable-werror)

libsanitizer/

	PR bootstrap/63888
	Reapply:
	2015-02-20  Jakub Jelinek  <jakub@redhat.com>

	* asan/asan_globals.cc (RegisterGlobal): Disable detect_odr_violation
	support until it is rewritten upstream.

	* c-c++-common/asan/pr63888.c: New test.

From-SVN: r229114

libsanitizer/

	PR sanitizer/63958
	Reapply:
	2014-10-14  David S. Miller  <davem@davemloft.net>

	* sanitizer_common/sanitizer_platform_limits_linux.cc (time_t):
	Define at __kernel_time_t, as needed for sparc.
	(struct __old_kernel_stat): Don't check if __sparc__ is defined.
	* libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
	(__sanitizer): Define struct___old_kernel_stat_sz,
	struct_kernel_stat_sz, and struct_kernel_stat64_sz for sparc.
	(__sanitizer_ipc_perm): Adjust for sparc targets.
	(__sanitizer_shmid_ds): Likewsie.
	(__sanitizer_sigaction): Likewise.
	(IOC_SIZE): Likewsie.

From-SVN: r229113

gcc/

	* asan.c (asan_emit_stack_protection): Don't pass local stack to
	asan_stack_malloc_[n] anymore. Check if asan_stack_malloc_[n] returned
	NULL and use local stack than.
	(asan_finish_file): Insert __asan_version_mismatch_check_v[n] call
	in addition to __asan_init.
	* sanitizer.def (BUILT_IN_ASAN_INIT): Rename to __asan_init.
	(BUILT_IN_ASAN_VERSION_MISMATCH_CHECK): Add new builtin call.
	* asan.h (asan_intercepted_p): Handle new string builtins.
	* ubsan.c (ubsan_use_new_style_p): New function.
	(ubsan_instrument_float_cast): If location is unknown, assign
	input_location to loc. Propagate loc to ubsan_create_data if
	ubsan_use_new_style_p returned true.

config/

	* bootstrap-asan.mk: Replace ASAN_OPTIONS=detect_leaks with
	LSAN_OPTIONS=detect_leaks.

gcc/testsuite/

	* c-c++-common/ubsan/float-cast-overflow-10.c: Adjust test.
	* c-c++-common/ubsan/float-cast-overflow-8.c: Likewise.
	* c-c++-common/ubsan/float-cast-overflow-9.c: Likewise.
	* g++.dg/asan/default-options-1.C: Likewise.

From-SVN: r229112

libsanitizer/

2015-10-20  Maxim Ostapenko  <m.ostapenko@partner.samsung.com>

	* All source files: Merge from upstream r250806.
	* configure.ac (link_sanitizer_common): Add -lrt flag.
	* configure.tgt: Enable TSAN and LSAN for aarch64-linux targets.
	Set CXX_ABI_NEEDED=true for darwin.
	* asan/Makefile.am (asan_files): Add new files.
	(DEFS): Add DCAN_SANITIZE_UB=0 and remove unused and legacy
	DASAN_FLEXIBLE_MAPPING_AND_OFFSET=0.
	* asan/Makefile.in: Regenerate.
	* ubsan/Makefile.am (ubsan_files): Add new files.
	(DEFS): Add DCAN_SANITIZE_UB=1.
	(libubsan_la_LIBADD): Add -lc++abi if CXX_ABI_NEEDED is true.
	* ubsan/Makefile.in: Regenerate.
	* tsan/Makefile.am (tsan_files): Add new files.
	(DEFS): Add DCAN_SANITIZE_UB=0.
	* tsan/Makefile.in: Regenerate.
	* sanitizer_common/Makefile.am (sanitizer_common_files): Add new files.
	* sanitizer_common/Makefile.in: Regenerate.
	* asan/libtool-version: Bump the libasan SONAME.

From-SVN: r229111

	* Makefile.in (OBJS): Remove sched-vis.c
	* sched-vis.c: Removed.  Code moved into...
	* print-rtl.c: Here.  Include cfg.h, pretty-print.h and print-rtl.h.
	* rtl.h: Remove prototypes for functions now living in print-rtl.c
	* print-rtl.h Add prototypes for new functions in print-rtl.c.
	* auto-inc-dec.c: Include print-rtl.h
	* cfgrtl.c, combine.c, final.c haifa-sched.c: Likewise.
	* ira.c, lra-constraints.c, lra.c, sel-sched-dump.c: Likewise.

From-SVN: r229110

	* varasm.c (handle_vtv_comdat_section): Mark 2nd parameter with
	ATTRIBUTE_UNUSED.

From-SVN: r229109

re PR c++/66583 (incorrect implicitly-defined move constructor for class with anonymous union and NSDMI)

	PR c++/66583

	* init.c (innermost_aggr_scope): New.
	(build_field_list): Change uses_unions_p to uses_unions_or_anon_p.
	(sort_mem_initializers): Handle initializers for entire anonymous
	aggregates.

From-SVN: r229108

2015-10-20  Richard Biener  <rguenther@suse.de>
	    Naveen H.S  <Naveen.Hurugalawadi@caviumnetworks.com>

	* fold-const.c (fold_binary_loc) : Move (-A) * (-B) -> A * B
	to match.pd.
	Move (a * (1 << b)) is (a << b) to match.pd.
	Move convert (C1/X)*C2 into (C1*C2)/X to match.pd.
	Move ~X & X, (X == 0) & X, and !X & X are zero to match.pd.
	Move X & ~X , X & (X == 0), and X & !X are zero to match.pd.

	* match.pd (mult:c @0 (convert? (lshift integer_onep@1 @2))):
	New simplifier.
	(mult (rdiv:s REAL_CST@0 @1) REAL_CST@2): New simplifier.
	(bit_and:c (convert? @0) (convert? (bit_not @0))): New simplifier.
	(bit_ior (bit_and:s @0 (bit_not:s @1)) (bit_and:s (bit_not:s @0) @1))
	: New simplifier.
	(mult:c (convert1? (negate @0)) (convert2? negate_expr_p@1)):
	New simplifier.
	(match (logical_inverted_value @0) (truth_not @0)) : New Predicate.


Co-Authored-By: Naveen H.S <Naveen.Hurugalawadi@caviumnetworks.com>

From-SVN: r229107

From-SVN: r229106

	* config/rs6000/secureplt.h (LINK_SECURE_PLT_DEFAULT_SPEC): Define.
	* config/rs6000/sysv4.h (LINK_SECURE_PLT_SPEC): Define.
	(LINK_SPEC): Add %(link_secure_plt).
	(SUBTARGET_EXTRA_SPECS): Add "link_secure_plt".
	* config/rs6000/linux64.h (LINK_SECURE_PLT_SPEC): Redefine.


Co-Authored-By: Alan Modra <amodra@gmail.com>
Co-Authored-By: Szabolcs Nagy <szabolcs.nagy@arm.com>

From-SVN: r229102

	* testsuite/libgomp.oacc-c-c++-common/reduction-5.c: Set sane
	vector_length.
	* testsuite/libgomp.oacc-fortran/reduction-6.f90: Likewise.

From-SVN: r229100

	* array-notation-common.c (is_cilkplus_vector_p): Define.
	* c-common.h (is_cilkplus_vector_p): Declare.

	* c-parser.c (is_cilkplus_vector_p): Don't define here.

	* parser.c (is_cilkplus_vector_p): Don't define here.

From-SVN: r229099

    
    The fix for golang/go#11541 made the assertion that getting an invalid
    Numeric_constant after evaluating an invalid constant must result in
    an error in a binary expression.  However, a Numeric_constant can be
    invalid if it is unset, which occurs when either operand cannot be
    converted to the right type.  These errors are issued after the
    Numeric_constant is lowered.
    
    Fixes golang/go#12615.
    
    Reviewed-on: https://go-review.googlesource.com/14646

From-SVN: r229098

    
    Fixes golang/go#12618.
    
    Reviewed-on: https://go-review.googlesource.com/14647

From-SVN: r229096

	* config/sh/linux.h (MUSL_DYNAMIC_LINKER): Define.
	(MUSL_DYNAMIC_LINKER_E, MUSL_DYNAMIC_LINKER_FP): Define.


Co-Authored-By: Szabolcs Nagy <szabolcs.nagy@arm.com>

From-SVN: r229095

	* config/aarch64/aarch64.c (aarch64_mode_valid_for_sched_fusion_p):
	New function.
	(fusion_load_store): Use it.
	* config/aarch64/aarch64-ldpstp.md: Add new peephole2s for
	ldp and stp in VD modes.
	* config/aarch64/aarch64-simd.md (load_pair<mode>, VD): New pattern.
	(store_pair<mode>, VD): Likewise.

	* gcc.target/aarch64/stp_vec_64_1.c: New test.
	* gcc.target/aarch64/ldp_vec_64_1.c: Likewise.

From-SVN: r229094

	* lib/target-supports.exp (check_effective_target_vect64): Add AArch64.

From-SVN: r229092

	PR c/67964
	* c-parser.c (c_parser_attributes): Break out of the loop if the
	token after an attribute isn't a comma.

	* gcc.dg/pr67964.c: New test.

From-SVN: r229091

This patch removes the gas configure option:

--enable-compressed-debug-sections

and adds a toplevel configure option:

--enable-compressed-debug-sections={all,gas,gold,ld}

to enable compressed debug sections for gas, gold or ld by default.  At
the moment, this configure option is ignored by gold and ld.  For x86
Linux targets, default to compressing debug sections in gas.

	Sync with binutils-gdb:
	PR gas/19109
	* configure.ac: Add
	--enable-compressed-debug-sections={all,gas,gold,ld}.
	* configure: Regenerated.

From-SVN: r229088

2015-10-20  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/67609
	* lra-splill.c (lra_final_code_change): Don't remove all
	sub-registers.

2015-10-20  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/67609
	* gcc.target/i386/pr67609.c: New.

From-SVN: r229087

	* simplify-rtx.c (simplify_binary_operation): If either operand was
	a constant pool reference use them if all other simplifications failed.

	* gcc.target/aarch64/fmul_fcvt_1.c: Add multiply-by-32 cases.

From-SVN: r229086

	* config/aarch64/aarch64.md
	(*aarch64_fcvt<su_optab><GPF:mode><GPI:mode>2_mult): New pattern.
	* config/aarch64/aarch64-simd.md
	(*aarch64_fcvt<su_optab><VDQF:mode><fcvt_target>2_mult): Likewise.
	* config/aarch64/aarch64.c (aarch64_rtx_costs): Handle above patterns.
	(aarch64_fpconst_pow_of_2): New function.
	(aarch64_vec_fpconst_pow_of_2): Likewise.
	* config/aarch64/aarch64-protos.h (aarch64_fpconst_pow_of_2): Declare
	prototype.
	(aarch64_vec_fpconst_pow_of_2): Likewise.
	* config/aarch64/predicates.md (aarch64_fp_pow2): New predicate.
	(aarch64_fp_vec_pow2): Likewise.

	* gcc.target/aarch64/fmul_fcvt_1.c: New test.
	* gcc.target/aarch64/fmul_fcvt_2.c: Likewise.

From-SVN: r229085

	* config/alpha/alpha.h (HARD_REGNO_NREGS): Use CEIL macro.
	(ALPHA_ARG_SIZE): Ditto.  Remove unused NAMED argument.
	* config/alpha/alpha.c (alpha_function_arg_advance): Update
	ALPHA_ARG_SIZE usage.
	(alpha_arg_partial_bytes): Ditto.

From-SVN: r229084

There is no need to finalize local error_mark_node decls.

gcc/

	PR target/66810
	* cgraphbuild.c (pass_build_cgraph_edges::execute): Skip local
	error_mark_node decls.

gcc/testsuite/

	PR target/66810
	* gcc.target/i386/pr66810.c: New test.

From-SVN: r229083

-miamcu specifies how parameters are passed to functions and how value
is returned from a function.  Inside function,  we can use instructions
supported by -march=XXX.  -miamcu -march=haswell can generate x87, SSE
and AVX instructions as long as the IA MCU psABI is followed.  But since
Lakemont processor doesn't support x87 instructions, we shouldn't
generate x87 instructions with -march=lakemont.  This patch separates
code generation from -miamcu and makes -march=lakemont not to generate
x87 instructions.

gcc/

	PR target/67963
	PR target/67985
	* common/config/i386/i386-common.c (ix86_handle_option): Remove
	OPT_miamcu handling.
	* config/i386/i386.c (PTA_NO_80387): New macro.
	(processor_alias_table): Add PTA_NO_80387 to lakemont.
	(ix86_option_override_internal): Update MASK_80387 from
	PTA_NO_80387.  Don't warn x87/MMX/SSE/AVX for -miamcu.  Warn
	SSE math only if 80387 is supported.  Don't change
	MASK_FLOAT_RETURNS.
	(ix86_valid_target_attribute_tree): Enable FPMATH_387 only if
	80387 is supported.
	* config/i386/i386.h (TARGET_FLOAT_RETURNS_IN_80387): True only
	if TARGET_80387 is true and TARGET_IAMCU is false.
	(TARGET_FLOAT_RETURNS_IN_80387_P): True only if TARGET_80387_P
	is true and TARGET_IAMCU_P is false.

gcc/testsuite/

	PR target/67963
	PR target/67985
	* gcc.target/i386/pr67963-1.c: New test.
	* gcc.target/i386/pr67963-2.c: Likewise.
	* gcc.target/i386/pr67963-3.c: Likewise.
	* gcc.target/i386/pr67985-1.c: Likewise.
	* gcc.target/i386/pr67985-2.c: Likewise.
	* gcc.target/i386/pr67985-3.c: Likewise.

From-SVN: r229082

	* c.opt (std=gnu++11): Do not describe as experimental.
	(std=gnu++14): Likewise.

From-SVN: r229081

	* gcc.target/aarch64/vdiv_f.c: Use __builtin_nan.

From-SVN: r229080

2015-10-20  Yannick Moy  <moy@adacore.com>

	* fmap.adb, a-cihama.adb, sem_ch5.adb, make.adb, inline.adb,
	a-cfhase.adb, scng.adb, sem_ch12.adb, freeze.adb, tempdir.adb,
	sem_util.adb, sem_res.adb, s-regexp.adb, a-clrefi.adb: Fix coding
	style for marking start of processing of subprograms.

2015-10-20  Yannick Moy  <moy@adacore.com>

	* lib-xref-spark_specific.adb (Add_SPARK_File): Start traversal
	by requesting info from stubs.	(Traverse_All_Compilation_Units):
	Remove unused procedure.
	(Traverse_Declarations_Or_Statements): Handle protected and task units.
	* lib-xref.ads (Traverse_All_Compilation_Units): Remove unused
	procedure.
	* restrict.adb (Check_Restriction): Do not ignore
	restrictions in GNATprove_Mode.

From-SVN: r229078