2017-02-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/79673
	* tree-ssa-pre.c (compute_avail): Use wide_int_to_tree to
	convert the [TARGET_]MEM_REF offset INTEGER_CST, scrapping off
	irrelevant address-space qualifiers and avoiding a
	ADDR_SPACE_CONVERT_EXPR from fold_convert.

	* gcc.target/i386/pr79673.c: New testcase.

From-SVN: r245649

re PR tree-optimization/79666 (wrong code (SIGFPE) at -O2 on x86_64-linux-gnu (in both 32-bit and 64-bit modes))

2017-02-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/79666
	* tree-vrp.c (extract_range_from_binary_expr_1): Make sure
	to not symbolically negate if that may introduce undefined
	overflow.

	* gcc.dg/torture/pr79666.c: New testcase.

From-SVN: r245648

2017-02-22  Martin Liska  <mliska@suse.cz>

	PR lto/79587
	* data-streamer-in.c (streamer_read_gcov_count): Remove assert.
	* data-streamer-out.c (streamer_write_gcov_count_stream):
	Likewise.
	* value-prof.c (stream_out_histogram_value): Make assert more
	precise based on type of counter.
2017-02-22  Martin Liska  <mliska@suse.cz>

	PR lto/79587
	* gcc.dg/tree-prof/pr79587.c: New test.

From-SVN: r245647

From-SVN: r245646

	PR c++/17729 - duplicate deprecated warning
	* semantics.c (finish_id_expression): Only call mark_used on a
	function if we aren't building a call.

From-SVN: r245643

	* pt.c (process_partial_specialization): For now, don't check more
	specialized if there is more than one level of args.

From-SVN: r245642

	PR c++/79535
	* cp-tree.h (maybe_reject_flexarray_init): Declare.
	* init.c (maybe_reject_flexarray_init): No longer static.
	Add check for current_function_decl.
	* parser.c (cp_parser_late_parse_one_default_arg): Reject
	a default mem-initializer for a flexible array.

	* g++.dg/ext/flexary23.C: New test.

From-SVN: r245641

	PR target/79593
	* config/i386/i386.md (standard_x87sse_constant_load splitter):
	Use nonimmediate_operand instead of memory_operand for operand 1.
	(float-extend standard_x87sse_constant_load splitter): Ditto.

testsuite/ChangeLog:

	PR target/79593
	* gcc.target/i386/pr79593.c: New test.

From-SVN: r245640

	PR c++/79654
	* decl.c (cp_finish_decomp): Don't set decl's type to error_mark_node
	on error.
	* pt.c (tsubst_decomp_names): Return error_mark_node if the first
	decl after the decomposition artificial decl has error_mark_node.
	* decl2.c (prune_vars_needing_no_initialization): Use error_operand_p
	instead of just == error_mark_node comparison.

	* g++.dg/cpp1z/decomp26.C: New test.

Co-Authored-By: Paolo Carlini <paolo.carlini@oracle.com>

From-SVN: r245639

	PR sanitizer/79589
	* decl.c: Include gimplify.h.
	(cp_finish_decomp): Make sure there is no sharing of trees
	in between DECL_VALUE_EXPR of decomposition decls.

	* g++.dg/ubsan/pr79589.C: New test.

From-SVN: r245638

	PR tree-optimization/79621
	* gimple-ssa-isolate-paths.c (find_implicit_erroneous_behavior): Ignore
	blocks with edges to themselves.

	PR tree-optimization/79621
	* gcc.c-torture/compile/pr79621.c: New test.

From-SVN: r245637

	PR c++/79655
	* constexpr.c (cxx_eval_array_reference): Diagnose negative subscript.

	* g++.dg/cpp1y/constexpr-79655.C: New test.

From-SVN: r245636

	PR c++/79639
	* constexpr.c (cxx_eval_store_expression): If *valp is a PTRMEM_CST,
	call cplus_expand_constant on it first.

	* g++.dg/cpp1y/constexpr-79639.C: New test.

From-SVN: r245635

	PR target/79633
	* tree-chkp-opt.c (chkp_optimize_string_function_calls): Use
	is_gimple_call instead of comparing gimple_code with GIMPLE_CALL.
	Use gimple_call_builtin_p.

	* gcc.target/i386/mpx/pr79633.c: New test.

From-SVN: r245634

	PR target/79570
	* sel-sched.c (moveup_expr_cached): Don't call sel_bb_head
	on temporarily removed DEBUG_INSNs.

	* gcc.dg/pr79570.c: New test.

From-SVN: r245633

	PR c++/79641
	* c-attribs.c (handle_mode_attribute): Use build_qualified_type to
	preserve quals.

	* c-c++-common/pr79641.c: New test.

From-SVN: r245632

re PR middle-end/79649 (Memset pattern in named address space crashes compiler or generates wrong code)

	PR tree-optimization/79649
	* tree-loop-distribution.c (classify_partition): Give up on
	non-generic address space loads/stores.

	* gcc.target/i386/pr79649.c: New test.

From-SVN: r245631

	* doc/loop.texi (Loop manipulation): Remove nonexistent
	tree_ssa_loop_version from the documentation.
	* cfgloopmanip.c (loop_version): Document CONDITION_BB argument.

From-SVN: r245630

	PR target/79494
	* config/i386/i386.c (ix86_expand_split_stack_prologue): Call
	make_reg_eh_region_note_nothrow_nononlocal on call_insn.
	* config/rs6000/rs6000.c: Include except.h.
	(rs6000_expand_split_stack_prologue): Call
	make_reg_eh_region_note_nothrow_nononlocal on the call insn.

	* gcc.dg/pr79494.c: New test.

From-SVN: r245629

2017-02-21  Martin Jambor  <mjambor@suse.cz>

	PR lto/79579
	* ipa-prop.c (ipa_prop_write_jump_functions): Bail out if no edges
	have been analyzed.

From-SVN: r245628

2017-02-21  Martin Jambor  <mjambor@suse.cz>

	* common.opt (-fipa-cp-alignment): Mark as ignored and preserved
	for backward compatibility only.
	* doc/invoke.texi (Option Summary): Remove all references to
	-fipa-cp-alignment.

From-SVN: r245627

gcc/
	PR target/78660
	Revert:
	2017-02-20  Matthew Fortune  <matthew.fortune@imgtec.com>

	* lra-constraints.c (curr_insn_transform): Handle
	WORD_REGISTER_OPERATIONS requirements when reloading SUBREGs.

From-SVN: r245626

Without this the test fails on 32-bit PowerPC.


gcc/testsuite/
	* gcc.dg/plugin/diagnostic-test-expressions-1.c: Add -Wno-psabi
	to dg-options.

From-SVN: r245625

2017-02-21  Martin Liska  <mliska@suse.cz>

	* config/i386/i386.opt: Replace -masm-dialect with -masm.

From-SVN: r245624

	gcc/
	* config/nvptx/nvptx.c (ENTRY_TEMPLATE): Single out "%ntid.y".

From-SVN: r245623

	* gcc.dg/gimplefe-26.c: Require c99_runtime.

From-SVN: r245622

	PR ada/67205
	* config/arm/arm.c (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): Define.
	(arm_function_ok_for_sibcall): Return false for an indirect call by
	descriptor if all the argument registers are used.
	(arm_relayout_function): Use FUNCTION_ALIGNMENT macro to adjust the
	alignment of the function.

From-SVN: r245621

	PR tree-optimization/61441
	* simplify-rtx.c (simplify_const_unary_operation): For
	-fsignaling-nans and sNaN operand, return NULL_RTX rather than
	the sNaN unmodified.

From-SVN: r245620

	PR go/79642
	* lang.opt (-fgo-relative-import-path): Change space to tab.

From-SVN: r245619

From-SVN: r245618

From-SVN: r245615

From-SVN: r245614

2017-02-20  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * Makefile.in (BUILD_SYSTEM_HEADER_DIR): New make variabe.
        (LIMITS_H_TEST, if_multiarch, stmp-fixinc): Use BUILD_SYSTEM_HEADER_DIR
        instead of SYSTEM_HEADER_DIR.

From-SVN: r245613

	* call.c (build_special_member_call): Use tf_no_cleanup.

From-SVN: r245612

2017-02-14  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        * gcc.dg/strncmp-2.c: Portability fixes.

From-SVN: r245608

gcc/testsuite/ChangeLog:

2017-02-20  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	PR target/78056
	* gcc.target/powerpc/pr78056-8.c: Remove.

From-SVN: r245607

invoke.texi (use-after-scope-direct-emission-threshold): Fix typos and grammar, use active voice, and clarify.

	* doc/invoke.texi (use-after-scope-direct-emission-threshold):
	Fix typos and grammar, use active voice, and clarify.

Co-Authored-By: Martin Liska <mliska@suse.cz>

From-SVN: r245606

	PR sanitizer/79558
	* ubsan.c (ubsan_type_descriptor): Check if TYPE_MAX_VALUE is null.

	* c-c++-common/ubsan/bounds-14.c: New test.

From-SVN: r245605

	PR middle-end/79537
	* gimplify.c (gimplify_expr): Handle unused *&&L;.

	* gcc.dg/comp-goto-4.c: New.

From-SVN: r245604

2017-02-20  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/79599
	* interface.c (check_dtio_arg_TKR_intent): Supply 'must'
	missing from error message.

2017-02-20  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/79523
	* interface.c (gfc_find_typebound_dtio_proc): Guard test for
	flavor attribute by checking that symbol is resolved.

From-SVN: r245603