PR c++/67364

	* constexpr.c (cxx_eval_component_reference): Just return an empty
	CONSTRUCTOR for an empty class.

From-SVN: r233945

	PR ada/70017
	* gcc.dg/pr70017.c (foo): Store 0 to first element of each array.

From-SVN: r233944

	PR rtl-optimization/69904
	* config/arm/arm.c (arm_cannot_copy_insn_p):
	Return true for load-exclusive instructions.

	* gcc.target/arm/pr69904.c: New test.

From-SVN: r233941

	PR target/70021
	* tree-vect-stmts.c (vect_mark_relevant): Remove USED_IN_PATTERN
	argument, if STMT_VINFO_IN_PATTERN_P (stmt_info), always mark
	the pattern no matter if it is used just by non-pattern, pattern
	or mix thereof.
	(process_use, vect_mark_stmts_to_be_vectorized): Adjust callers.
	* tree-vect-patterns.c (vect_recog_vector_vector_shift_pattern): If
	oprnd1 def_stmt is in pattern, don't look through it.

	* gcc.dg/vect/pr70021.c: New test.
	* gcc.target/i386/pr70021.c: New test.

From-SVN: r233940

	* Makefile.am (libffi.map-sun): Properly convert
	$(libffi_la_OBJECTS) to object names.
	* Makefile.in: Regenerate.

From-SVN: r233938

re PR middle-end/70050 (ICE: tree check: expected integer_type or enumeral_type or boolean_type or real_type or fixed_point_type, have vector_type in generic_simplify_162, at generic-match.c:6175)

	PR middle-end/70050
	* match.pd (X % -Y): Add INTEGRAL_TYPE_P check.

	* gcc.dg/pr70050.c: New test.

From-SVN: r233937

	* Makefile.am (libffi.map-sun): Tabify:
	* Makefile.in: Regenerate.

From-SVN: r233936

gcc/testsuite/

	* gcc.dg/vect/bb-slp-34.c: Don't XFAIL for ARM/AArch64.

From-SVN: r233935

	PR tree-optimization/70043
	* tree-vect-loop.c (optimize_mask_stores): Move iterator to
	previous statement if we see a debug statement.
	* gfortran.dg/vect/pr70043.f90: New test.

From-SVN: r233934

From-SVN: r233932

	* lib/gcc-gdb-test.exp (gdb-test): Make log message match command.
	Invoke gdb with -batch.
	* lib/gcc-simulate-thread.exp (simulate-thread): Likewise.

From-SVN: r233930

The attached patch adds the a target specific attribute via the
new target macro TARGET_BEGIN_TRANSACTION_ATTRIBUTE to the
function begin_transaction().  S/390 uses this to set the
soft-float target attribute which is needed to fix a crash with
-m31.

As there seems to be no place in libitm to document internal macros like
USE_HTM_FASTPATH or the new macro, I've put the documentation in a
comment where the macro is used.

2016-03-03  Dominik Vogt  <vogt@linux.vnet.ibm.com>

	* config/s390/target.h (TARGET_BEGIN_TRANSACTION_ATTRIBUTE): Define
	function attribute to disable floating point in begin_transaction() on
	S/390.
	* beginend.cc (begin_transaction): Use
	TARGET_BEGIN_TRANSACTION_ATTRIBUTE.

From-SVN: r233929

2016-03-03  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/55936
	* tree-vrp.c (compare_name_with_value): Add use_equiv_p
	parameter and guard unsafe equivalence use.
	(vrp_evaluate_conditional_warnv_with_ops): Always use
	safe equivalences but not via the quadratic compare_names
	helper.

	* gcc.dg/tree-ssa/vrp06.c: Remove XFAIL.

From-SVN: r233928

2016-03-03  Michael Collison  <michael.collison@linaro.org>

	PR target/70014
	* config/arm/arm.md (*subsi3_carryin_const): Change predicate
	for operand 1 to s_register_operand. Change predicate for operand
	2 to arm_not_immediate_operand.

From-SVN: r233927

PR libffi/70024

  * Makefile.am (libffi_version_script): Look in cwd for libffi.map.
  (libffi_version_dep, libffi.map-sun): Likewise.
  (libffi.map): New target.
  * libffi.map.in: Rename from libffi.map.  Add required defines,
  includes, and conditionals.

From-SVN: r233926

From-SVN: r233925

	PR rtl-optimization/69942
	* gcc.dg/ifcvt-5.c: Use "word_mode" rather than "int" to limit the
	effects of argument promotions.

From-SVN: r233922

PR libffi/70024

  * Makefile.am (libffi_version_script): New.
  (libffi_version_dep): New.
  (libffi_version_info): New.
  (libffi_la_LDFLAGS): Include libffi_version_info, libffi_version_script.
  (libffi_la_DEPENDENCIES): Include libffi_version_dep.
  * acinclude.m4 (LIBAT_ENABLE, LIBAT_CHECK_LINKER_FEATURES): New.
  (LIBAT_ENABLE_SYMVERS, LIBAT_BUILD_VERSIONED_SHLIB): New.
  (LIBAT_BUILD_VERSIONED_SHLIB_GNU): New.
  (LIBAT_BUILD_VERSIONED_SHLIB_SUN): New.
  * configure.ac: Invoke LIBAT_ENABLE_SYMVERS.
  * libffi.map: New file.
  * libtool-version: Increase to 5.0.0.
  * Makefile.in, configure: Rebuild.
  * man/Makefile.in, testsuite/Makefile.in: Rebuild.

From-SVN: r233921

From-SVN: r233918

	* doc/tm.texi: Regenerated.

From-SVN: r233917

PR rtl-opt/67145

  * simplify-rtx.c (simplify_plus_minus): Allow reassoc without
  simplification when all args are positive non-fixed registers.

From-SVN: r233916

From-SVN: r233915

2016-03-02  Manuel Lopez-Ibanez <manu@gcc.gnu.org>

       * target.def(lra_p): Specify that new ports should use LRA.

From-SVN: r233914

	PR libgomp/69555
	* gimplify.c (gimplify_decl_expr): For decls with REFERENCE_TYPE, also
	gimplify_type_sizes the type they refer to.
	(omp_notice_variable): Handle reference vars to VLAs.
	* omp-low.c (lower_omp_target): Emit setup of OMP_CLAUSE_PRIVATE reference
	to VLA decls in the second pass instead of first pass.

	* testsuite/libgomp.c++/pr69555-1.C: New test.
	* testsuite/libgomp.c++/pr69555-2.C: New test.

From-SVN: r233913

	PR tree-optimization/69987
	* gfortran.dg/pr69987.f90: Use "-w" to avoid failures when the
	target does not support -fprefetch-loop-arrays.

From-SVN: r233912

libbacktrace/

2016-03-02  Maxim Ostapenko  <m.ostapenko@partner.samsung.com>

	* elf.c (backtrace_initialize): Properly initialize elf_fileline_fn to
	avoid possible crash.
	(elf_add): Don't set *fileline_fn to elf_nodebug value in case of
	missing debug info anymore.

From-SVN: r233911

	* gcc.target/i386/bmi2-bzhi-2.c: Change to runtime test.

From-SVN: r233910

2016-03-02  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/68659
	* graphite-isl-ast-to-gimple.c (collect_all_ssa_names): Handle
	new_expr == NULL_TREE.
	(get_new_name): Handle ADDR_EXPR.

From-SVN: r233909

From-SVN: r233908

	PR tree-optimization/69052
	* loop-invariant.c (canonicalize_address): New function.
	(inv_can_prop_to_addr_use): Check validity of address expression
	which is canonicalized by above function.

	gcc/testsuite/ChangeLog
	PR tree-optimization/69052
	* gcc.target/i386/pr69052.c: New test.

From-SVN: r233907

This patch cures a problem with ICF of read-only variables at the
intersection of -fsection-anchors, -ftree-loop-vectorize, and targets
with alignment restrictions.

What happens with the testcase is:
- "c" is referenced in a constructor, thus make_decl_rtl for "c",
- make_decl_rtl puts "c" in an anchor block (-fsection-anchors),
- anchor block contents can't move, so "c" alignment can't change by
  ipa_increase_alignment (-ftree-loop-vectorize),
- however "a" alignment can be increased,
- ICF aliases "a" to "c".
So we have a decl for "a" saying it is aligned to 128 bits, using mem
for "c" which is only 16 bit aligned.

	PR ipa/69990
gcc/
	* ipa-icf.c (sem_variable::merge): Do not merge an alias with
	larger alignment.
gcc/testsuite/
	gcc.dg/pr69990.c: New.

From-SVN: r233906

	PR c/68062
	* c-c++-common/vector-compare-4.c: Add -Wno-psabi to dg-options.

	PR middle-end/70022
	* gcc.dg/pr70022.c: Add -w -Wno-psabi to dg-options.

From-SVN: r233905

re PR target/70028 (Error: operand size mismatch for `kmovw' (wrong assembly generated) with -mavx512bw -masm=intel)

	PR target/70028
	* config/i386/i386.md (kmovw): Move m constraint to 2nd alternative.
	(*movhi_internal): Put mask moves from and to memory separately
	from moves from/to GPRs.

	* gcc.target/i386/pr70028.c: New test.

From-SVN: r233904

2016-03-02  Richard Biener  <rguenther@suse.de>

	* genmatch.c (dt_node::gen_kids): Fix match code-gen for embedded
	GENERIC expressions in GIMPLE.

From-SVN: r233902

2016-03-02  Richard Biener  <rguenther@suse.de>

	* config/i386/i386.c (type_natural_mode): Fix typo.

From-SVN: r233901

From-SVN: r233900

	* c-c++-common/asan/swapcontext-test-1.c,
	* c-c++-common/tsan/thread_leak.c,
	* g++.dg/tsan/aligned_vs_unaligned_race.C,
	* g++.dg/tsan/benign_race.C,
	* g++.dg/tsan/fd_close_norace.C,
	* g++.dg/tsan/fd_close_norace2.C: Print markers to stderr to avoid
	races with sanitizer output

From-SVN: r233899

2016-03-02  Richard Biener  <rguenther@suse.de>
	Uros Bizjak  <ubizjak@gmail.com>

	PR target/67278
	* config/i386/i386.c (type_natural_mode): Handle XFmode vectors.

	* gcc.dg/simd-8.c: New testcase.

Co-Authored-By: Uros Bizjak <ubizjak@gmail.com>

From-SVN: r233898

2016-03-02  Richard Biener  <rguenther@suse.de>

	PR middle-end/67278
	* tree-cfg.c (verify_expr): Adjust BIT_FIELD_REF case.

	* gcc.dg/simd-7.c: New testcase.

From-SVN: r233897

From-SVN: r233894