From-SVN: r232898

	PR tree-optimization/68398
	* params.def (PARAM_FSM_SCALE_PATH_STMTS): New parameter.
	(PARAM_FSM_SCALE_PATH_BLOCKS): Likewise.
	* tree-ssa-threadbackward.c (fsm_find_control_statement_thread_paths):
	Only count PHIs in the last block in the path.  The others will
	const/copy propagate away.  Add heuristic to allow more irreducible
	subloops to be created when it is likely profitable to do so.

	* tree-ssa-threadbackward.c (fsm_find_control_statement_thread_paths):
	Fix typo in comment.  Use gsi_after_labels and remove the GIMPLE_LABEL
	check from within the loop.  Use gsi_next_nondebug rather than gsi_next.

	PR tree-optimization/68398
	* gcc.dg/tree-ssa/pr66752-3.c: Update expected output.
	* gcc.dg/tree-ssa/ssa-dom-thread-2c.c: Add extra statements on thread
	path to avoid new heuristic allowing more irreducible regions
	* gcc.dg/tree-ssa/ssa-dom-thread-2d.c: Likewise.
	* gcc.dg/tree-ssa/vrp46.c: Likewise.
	* gcc.dg/tree-ssa/ssa-dom-thread-7.c: Update expected output.
	* gcc.dg/tree-ssa/ssa-dom-thread-2g.c: New test.
	* gcc.dg/tree-ssa/ssa-dom-thread-2h.c: Likewise.

From-SVN: r232897

	PR c/68062
	* c-typeck.c (build_binary_op) [EQ_EXPR, GE_EXPR]: Promote operand
	to unsigned, if needed.  Add -Wsign-compare warning.

	* typeck.c (cp_build_binary_op): Promote operand to unsigned, if
	needed.  Add -Wsign-compare warning.

	* c-c++-common/vector-compare-4.c: New test.

From-SVN: r232894

gcc/testsuite/ChangeLog:
	PR preprocessor/69126
	* c-c++-common/pr69126.c: New test case.

libcpp/ChangeLog:
	PR preprocessor/69126
	* directives.c (destringize_and_run): Add expansion_loc param; use
	it when handling unexpanded pragmas to fixup the locations of the
	synthesized tokens.
	(_cpp_do__Pragma): Add expansion_loc param and use it when calling
	destringize_and_run.
	* internal.h (_cpp_do__Pragma): Add expansion_loc param.
	* macro.c (builtin_macro): Pass expansion location of _Pragma to
	_cpp_do__Pragma.

From-SVN: r232893

    compiler: Copy key_path_ when copying a Composite_literal_expression.
    
    Fixes golang/go#10263.
    
    Reviewed-on: https://go-review.googlesource.com/14299
    Reviewed-on: https://go-review.googlesource.com/18988

From-SVN: r232892

re PR lto/69254 (ICE in streamer_get_builtin_tree when using -fsanitize=shift on the compile side only)

	PR lto/69254
	* sanitizer.def: Add BEGIN_SANITIZER_BUILTINS and
	END_SANITIZER_BUILTINS markers using DEF_BUILTIN_STUB.
	* asan.c (DEF_BUILTIN_STUB): Temporarily define.
	* tree-streamer-in.c: Include asan.h.
	(streamer_get_builtin_tree): For builtins in sanitizer
	range call initialize_sanitizer_builtins and retry.

From-SVN: r232891

	* go-lang.c (go_langhook_init_options_struct): Default to
	-fkeep-gc-roots-live.

From-SVN: r232890

gcc/:
	* common.opt (fkeep-gc-roots-live): New undocumented option.
	* tree-ssa-loop-ivopts.c (add_candidate_1): If
	-fkeep-gc-roots-live, skip pointers.
	(add_iv_candidate_for_biv): Handle add_candidate_1 returning
	NULL.

gcc/testsuite/:
	* gcc.dg/tree-ssa/ivopt_5.c: New test.

From-SVN: r232888

2016-01-15  Ryan Burn  <contact@rnburn.com>

        PR cilkplus/69267
        * cilk.c (cilk_gimplify_call_params_in_spawned_fn): Change to use
        gimplify_arg. Removed superfluous post_p argument.
        * c-family.h (cilk_gimplify_call_params_in_spawned_fn): Removed
        superfluous post_p argument.
        * c-gimplify.c (c_gimplify_expr): Likewise.

gcc/cp/ChangeLog:

2016-01-15  Ryan Burn  <contact@rnburn.com>

        PR cilkplus/69267
        * cp-gimplify.c (cilk_cp_gimplify_call_params_in_spawned_fn): Removed
        superfluous post_p argument in call to
        cilk_gimplify_call_params_in_spawned_fn.

gcc/testsuite/ChangeLog:

2016-01-15  Ryan Burn  <contact@rnburn.com>

	PR cilkplus/69267
	* g++.dg/cilk-plus/CK/pr69267.cc: New test.

From-SVN: r232887

2016-01-27  Uros Bizjak  <ubizjak@gmail.com>

	PR target/69512
	* config/i386/i386.md (*zext<mode>_doubleword_and): New pattern.
	(*zext<mode>_doubleword): Disable for TARGET_ZERO_EXTEND_WITH_AND.

testsuite/ChangeLog:

2016-01-27  Uros Bizjak  <ubizjak@gmail.com>

	PR target/69512
	* gcc.target/i386/pr69512.c: New test.

From-SVN: r232885

2016-01-27  Thomas Klausner  <wiz@NetBSD.org>

	PR target/68380
	* configure.ac: NetBSD provides SSP in its C library.
	* configure: Updated.

From-SVN: r232884

	PR ada/69488
	* gnat.dg/sso/*.adb: Robustify dg-output directives.

From-SVN: r232883

	PR c++/69379
	* constexpr.c (cxx_eval_constant_expression): Handle PTRMEM_CSTs
	wrapped in NOP_EXPRs.

	* g++.dg/pr69379.C: New test.

From-SVN: r232882

gcc/cp/ChangeLog:
2016-01-27  Martin Sebor  <msebor@redhat.com>

	PR c++/69317
	* mangle.c (mangle_decl): Reference the correct (saved) version
	of the ABI in -Wabi diagnostics.

gcc/testsuite/ChangeLog:
2016-01-27  Martin Sebor  <msebor@redhat.com>

	PR c++/69317
	* g++.dg/abi/Wabi-2-2.C: New test.
	* g++.dg/abi/Wabi-2-3.C: New test.
	* g++.dg/abi/Wabi-3-2.C: New test.
	* g++.dg/abi/Wabi-3-3.C: New test.

From-SVN: r232881

2015-01-27  Wilco Dijkstra  <wdijkstr@arm.com>

	* MAINTAINERS: (Write After Approval): Add myself.

From-SVN: r232880

	PR libstdc++/69295
	* testsuite/ext/special_functions/hyperg/check_value.cc: Use
	-ffp-contract=off, and -ffloat-store to disable excess precision.
	* testsuite/special_functions/02_assoc_legendre/check_value.cc: Use
	-ffp-contract=off.

From-SVN: r232879

2016-01-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/69166
	* tree-vect-loop.c (vect_is_simple_reduction): Always check
	reduction code for commutativity / associativity.

	* gcc.dg/torture/pr69166.c: New testcase.

From-SVN: r232878

2016-01-27  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/69355
	* tree-sra.c (analyze_access_subtree): Correct hole detection when
	total_scalarization fails.

testsuite/
	* gcc.dg/tree-ssa/pr69355.c: New test.

From-SVN: r232877

	PR c++/69496
	* constexpr.c (cxx_eval_array_reference): Evaluate the number of
	elements of the array.

	* g++.dg/ext/constexpr-vla1.C: New test.

From-SVN: r232875

        * config/rs6000/driver-rs6000.c (detect_processor_aix): Add
        power9.

From-SVN: r232873

2016-01-20  Christian Bruel  <christian.bruel@st.com>

	PR target/69245
	* config/arm/arm-c.c (arm_pragma_target_parse): Add comments.
	Move arm_reset_previous_fndecl and set_target_option_current_node in
	the conditional part.  Call save_restore_target_globals.
	* config/arm/arm.c (arm_set_current_function):
	Refactor to better support #pragma target and attribute mix.
	Call save_restore_target_globals.
	* config/arm/arm-protos.h (save_restore_target_globals): New function.

From-SVN: r232872

	* lto-partition.c (add_symbol_to_partition_1): Remove usage
	of hsa_summaries.
	* hsa.c (hsa_summary_t::link_functions): Create IPA_REF_ADDR
	reference for an HSA kernel and its host function.

From-SVN: r232871

	PR tree-optimization/69399
	* wide-int.h (wi::lrshift): For larger precisions, only
	use fast path if shift is known to be < HOST_BITS_PER_WIDE_INT.

	* gcc.dg/torture/pr69399.c: New test.

From-SVN: r232869

gcc/
2016-01-27  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/predicates.md (proper_comparison_operator): Reject
        constant-constant comparison.

From-SVN: r232868

From-SVN: r232867

libiberty/ChangeLog:

2016-01-26  Iain Buclaw  <ibuclaw@gdcproject.org>

	* d-demangle.c (dlang_call_convention): Handle extern Objective-C
	function calling convention.
	(dlang_call_convention_p): Likewise.
	(dlang_type): Likewise.
	* testsuite/d-demangle-expected: Add coverage tests.

From-SVN: r232864

d-demangle.c (dlang_function_args): Append ',' for variadic functions only if parameters were seen before the...

libiberty/ChangeLog:

2016-01-26  Iain Buclaw  <ibuclaw@gdcproject.org>

	* d-demangle.c (dlang_function_args): Append ',' for variadic functions
	only if parameters were seen before the elipsis symbol.
	* testsuite/d-demangle-expected: Add coverage test for parameter-less
	variadic functions.

From-SVN: r232863

d-demangle.c (dlang_type): Handle function types only in the context of seeing a pointer type symbol.

libiberty/ChangeLog:

2016-01-27  Iain Buclaw  <ibuclaw@gdcproject.org>

	* d-demangle.c (dlang_type): Handle function types only in the context
	of seeing a pointer type symbol.
	* testsuite/d-demangle-expected: Update function pointer tests.

From-SVN: r232862

From-SVN: r232861

    
    Another issue with erroneous array types.  When an erroneous array
    type is in a function's signature, particularly the return type, we
    must guarantee that type is changed into an error type.  Otherwise,
    any operations that work on arrays and slices will crash when applied
    to the erroneous array return type.
    
    Fixes golang/go#12939.
    
    Reviewed-on: https://go-review.googlesource.com/16235

From-SVN: r232858

    
    Fixes golang/go#12937.
    
    Reviewed-on: https://go-review.googlesource.com/16233

From-SVN: r232857

From-SVN: r232856

    
    The gofrontend asks the backend compiler for the architecture
    appropriate size of a given type.  For array types, it is possible
    to construct a type too large to fit on the machine.  This patch does
    two things: 1. When an impossibly large type is encountered, we mark
    the type as erroneous and later calls to discover the size of that
    type are short-circuited. 2. When generating the GC symbol data for
    an impossibly large array of arrays, we avoid generating symbol data
    as soon as we find an array that is too large to be expressed.
    
    Fixes golang/go#12938.
    
    Reviewed-on: https://go-review.googlesource.com/16234

From-SVN: r232855

2016-01-26  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/69110
	* tree-data-ref.c (initialize_data_dependence_relation): Handle
	DR_NUM_DIMENSIONS == 0.

	* gcc.dg/autopar/pr69110.c: New test.

	* testsuite/libgomp.c/pr69110.c: New test.

From-SVN: r232852

2016-01-26  Abderrazek Zaafrani  <a.zaafrani@samsung.com>
            Sebastian Pop  <s.pop@samsung.com>

	* graphite-isl-ast-to-gimple.c (ternary_op_to_tree): Handle
	isl_ast_op_cond and isl_ast_op_select.
	(gcc_expression_from_isl_expr_op): Same.

	* gcc.dg/graphite/isl-ast-op-select.c: New.

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

From-SVN: r232851

2016-01-26  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/69385
	* trans-expr.c (gfc_trans_assignment_1): Exclude initialization
	assignments from check on assignment of scalars to unassigned
	arrays and correct wrong code within the corresponding block.

2015-01-26  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/69385
	* gfortran.dg/allocate_error_6.f90: New test.

From-SVN: r232850

	PR c++/68949

	* constexpr.c (register_constexpr_fundef): Keep the un-massaged body.
	(cxx_eval_call_expression): Don't look through clones.
	* optimize.c (maybe_clone_body): Clear DECL_SAVED_TREE of the alias.
	* semantics.c (expand_or_defer_fn_1): Keep DECL_SAVED_TREE of
	maybe-in-charge *tor.

From-SVN: r232848

	PR c++/68782

gcc/
	* tree.c (recompute_constructor_flags): Split out from
	build_constructor.
	(verify_constructor_flags): New.
	* tree.h: Declare them.
gcc/cp/
	* constexpr.c (cxx_eval_bare_aggregate): Update TREE_CONSTANT
	and TREE_SIDE_EFFECTS.
	(cxx_eval_constant_expression) [CONSTRUCTOR]: Call
	verify_constructor_flags.

From-SVN: r232847

	PR rtl-optimization/69217
	* var-tracking.c (tracked_record_parameter_p): Don't segfault if there
	are no TYPE_FIELDS set for the record type.

From-SVN: r232845

re PR target/68662 (FAIL: gcc.dg/lto/20090210 c_lto_20090210_0.o-c_lto_20090210_1.o link, -O2 -flto -flto-partition=none -fuse-linker-plugin -fno-fat-lto-objects)

	PR target/68662
	* config/rs6000/rs6000.c (rs6000_option_override_internal): Initialize
	toc_label_name unconditionally.
	(rs6000_emit_load_toc_table): Call ggc_strdup on toc_label_name for
	SYMBOL_REF string.  Use toc_label_name instead of constructing
	LCTOC1.
	(rs6000_elf_declare_function_name): Use toc_label_name instead of
	constructing LCTOC1.

From-SVN: r232844