From-SVN: r233963

2016-03-04  Christophe Lyon  <christophe.lyon@linaro.org>

	* gcc.dg/torture/pr69951.c: Accept argc==0.

From-SVN: r233962

2016-03-04  Richard Biener  <rguenther@suse.de>

	PR c++/70054
	* c-common.c (strict_aliasing_warning): Use alias_set_subset_of
	instead of alias_sets_conflict_p.

	* g++.dg/warn/Wstrict-aliasing-bogus-union-2.C: New testcase.
	* gcc.dg/Wstrict-aliasing-struct-member.c: New testcase.

From-SVN: r233961

	* doc/extend.texi (__builtin_alloca, __builtin_alloca_with_align):
	Fix @xref usage.

From-SVN: r233960

The attached patch fixes a test failure of go.test/test/env.go on
s390x biarch.  Bootstrapped and regression tested on s390x biarch
and s390.

gcc/testsuite/ChangeLog

2016-03-04  Dominik Vogt  <vogt@linux.vnet.ibm.com>

	PR testsuite/69766
	* go.test/go-test.exp: S/390: Set GOARCH to the current target when
	testing multiarch.

From-SVN: r233959

	PR debug/69947
	* dwarf2out.c (prune_unused_types_walk_loc_descr): Handle
	all other ops that have dw_val_class_die_ref operands,
	and DW_OP_GNU_entry_value.

	* gcc.dg/guality/pr69947.c: New test.

From-SVN: r233958

From-SVN: r233956

	* pt.c (tsubst_copy_and_build) [LAMBDA_EXPR]: Get
	LAMBDA_EXPR_RETURN_TYPE from the instantiated closure.

From-SVN: r233955

re PR c++/67164 (ICE: tree check: expected class ‘expression’, have ‘exceptional’ (argument_pack_select) in tree_operand_check, at tree.h:3356)

	PR c++/67164

	* pt.c (copy_template_args): New.
	(tsubst_pack_expansion): Use it.

From-SVN: r233954

From-SVN: r233953

From-SVN: r233947

	PR c++/51406

	* typeck.c (build_static_cast_1): Avoid folding back to lvalue.

From-SVN: r233946

	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