[gcc]
2017-04-14  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/80098
	* config/rs6000/rs6000-cpus.def (OTHER_P9_VECTOR_MASKS): Define
	masks of options that should be turned off if the VSX vector
	options are turned off.
	(OTHER_P8_VECTOR_MASKS): Likewise.
	(OTHER_VSX_VECTOR_MASKS): Likewise.
	* config/rs6000/rs6000.c (rs6000_option_override_internal): Call
	rs6000_disable_incompatible_switches to validate no type switches
	like -mvsx.
	(rs6000_incompatible_switch): New function to disallow turning on
	other vector options if -mno-vsx, -mno-power8-vector, or
	-mno-power9-vector are specified.

[gcc/testsuite]
2017-04-14  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/80098
	* gcc.target/powerpc/pr80098-1.c: New test.
	* gcc.target/powerpc/pr80098-2.c: Likewise.
	* gcc.target/powerpc/pr80098-3.c: Likewise.
	* gcc.target/powerpc/pr80098-4.c: Likewise.

From-SVN: r246930

gcc/
2017-04-17  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.h (CRT_CALL_STATIC_FUNCTION): Use long calls.

From-SVN: r246927

The use of CFA_FRAME_BASE_OFFSET and ARG_POINTER_CFA_OFFSET macros
leads to wrong offset calculation for DW_OP_fbreg constructions.
Remove them.

gcc/
2017-04-14  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc-protos.h (arc_decl_pretend_args): Remove.
	* config/arc/arc.c (arc_decl_pretend_args): Likewise.
	* config/arc/arc.h (CFA_FRAME_BASE_OFFSET): Likewise.
	(ARG_POINTER_CFA_OFFSET): Likewise.

From-SVN: r246926

Update arc_mode_dependent_address_p to avoid emitting subreg(mem (reg
..)) when expanding by relaxing the conditions.

gcc/
2017-04-14  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.c (arc_mode_dependent_address_p): Relax
	conditions to take advantage of various optimizations.

From-SVN: r246925

mips.mips.md (zero_extendsidi2): Do not allow SP to appear in operands[1] if it is a MEM and TARGET_MIPS16 is active.

	* config/mips.mips.md (zero_extendsidi2): Do not allow SP to appear
	in operands[1] if it is a MEM and TARGET_MIPS16 is active.
	(zero_extendsidi2_dext): Likewise.

From-SVN: r246924

From-SVN: r246923

	* plugin/plugin-nvptx.c (cuda_lib_inited): Use signed char type
	instead of char.

From-SVN: r246918

re PR sanitizer/80403 (UBSAN: compile time crash with "type mismatch in binary expression" message in / and % expr)

	PR sanitizer/80403
	* fold-const.c (fold_ternary_loc): Revert
	use op0 instead of fold_convert_loc (loc, type, arg0) part of
	2017-04-12 change.

	* g++.dg/ubsan/pr80403-2.C: New test.

From-SVN: r246917

re PR rtl-optimization/80343 (ICE in extract_constrain_insn, at recog.c:2213 (error: insn does not satisfy its constraints))

2017-04-13  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/80343
	* lra-remat.c (update_scratch_ops): Assign original hard reg to
	new scratch pseudo.

2017-04-13  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/80343
	* gcc.target/powerpc/pr80343.c: New.

From-SVN: r246914

	PR sanitizer/80414
	* ubsan.c (ubsan_expand_bounds_ifn): Pass original index
	to ubsan_encode_value.

	* c-c++-common/ubsan/bounds-15.c: New test.

From-SVN: r246909

	* reload1.c (eliminate_regs_1): Call gen_rtx_raw_SUBREG for SUBREGs
	appearing in DEBUG_INSNs.

From-SVN: r246904

2017-04-13  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/80413
	* gcov-io.c (gcov_write_string): Copy to buffer just when
	allocated size is greater than zero.

From-SVN: r246903

2017-04-13  Richard Biener  <rguenther@suse.de>

	PR testsuite/80416
	* g++.dg/torture/pr79671.C: Fix asm constraints.

From-SVN: r246902

	PR debug/80321
	* dwarf2out.c (decls_for_scope): Ignore declarations of
	current_function_decl in BLOCK_NONLOCALIZED_VARS.

	* gcc.dg/debug/pr80321.c: New test.

2017-04-13  Eric Botcazou  <ebotcazou@adacore.com>

	* gnat.dg/debug10.adb: New test.
	* gnat.dg/debug10_pkg.ads: New helper.

From-SVN: r246900

	PR lto/69953 
	* ipa-visibility.c (non_local_p): Fix typos.
	(localize_node): When localizing symbol in same comdat group,
	dissolve the group only when we know external symbols are going
	to be privatized.
	(function_and_variable_visibility): Do not localize DECL_EXTERNAL.

From-SVN: r246899

From-SVN: r246898

	PR tree-optimization/79390
	* optabs.c (emit_conditional_move): If the preferred op2/op3 operand
	order does not result in usable sequence, retry with reversed operand
	order.

	* gcc.target/i386/pr70465-2.c: Xfail the scan-assembler-not test.

From-SVN: r246882

re PR sanitizer/80403 (UBSAN: compile time crash with "type mismatch in binary expression" message in / and % expr)

	PR sanitizer/80403
	PR sanitizer/80404
	PR sanitizer/80405
	* fold-const.c (fold_ternary_loc): Use op1 instead of arg1 as argument
	to fold_build2_loc.  Convert TREE_OPERAND (tem, 0) to type.  Use
	op0 instead of fold_convert_loc (loc, type, arg0).

	* g++.dg/ubsan/pr80403.C: New test.
	* g++.dg/ubsan/pr80404.C: New test.
	* g++.dg/ubsan/pr80405.C: New test.

From-SVN: r246881

genattrtab.c (write_eligible_delay): Verify DELAY_INSN still has a delay slot in the generated code.

	* genattrtab.c (write_eligible_delay): Verify DELAY_INSN still
	has a delay slot in the generated code.

From-SVN: r246879

	* config/cris/cris.md (cris_preferred_reload_class): Return
	GENNONACR_REGS rather than GENERAL_REGS.

From-SVN: r246877

	PR c/80163
	* expr.c <CASE_CONVERT>: For EXPAND_INITIALIZER determine SIGN_EXTEND
	vs. ZERO_EXTEND based on signedness of treeop0's type rather than
	signedness of the result type.

	* gcc.dg/torture/pr80163.c: New test.

From-SVN: r246876

2017-04-12  Richard Biener  <rguenther@suse.de>
	Jeff Law  <law@redhat.com>

	PR tree-optimization/80359
	* tree-ssa-dse.c (maybe_trim_partially_dead_store): Do not
	trim stores to TARGET_MEM_REFs.

	* gcc.dg/torture/pr80359.c: New testcase.

Co-Authored-By: Jeff Law <law@redhat.com>

From-SVN: r246875

2017-04-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/79390
	* gimple-ssa-split-paths.c (is_feasible_trace): Restrict
	threading case even more.

From-SVN: r246869

Whatever expand expands to should be valid instructions.  The defined
instructions here have a quad_memory_operand predicate, which boils
down to quad_address_p on the address, so let's test for that instead
of only disallowing indexed addresses.


	* config/rs6000/sync.md (atomic_load<mode>, atomic_store<mode): Test
	for quad_address_p for TImode, instead of just not indexed_address.

From-SVN: r246868

Whatever expand expands to should be valid instructions.  The defined
instructions here have a quad_memory_operand predicate, which boils
down to quad_address_p on the address, so let's test for that instead
of only disallowing indexed addresses.


	* config/rs6000/sync.md (atomic_load<mode>, atomic_store<mode): Test
	for quad_address_p for TImode, instead of just not indexed_address.

From-SVN: r246867

2017-04-12  Richard Biener  <rguenther@suse.de>
	Bernd Edlinger  <bernd.edlinger@hotmail.de>

	PR middle-end/79671
	* alias.c (component_uses_parent_alias_set_from): Handle
	TYPE_TYPELESS_STORAGE.
	(get_alias_set): Likewise.
	* tree-core.h (tree_type_common): Add typeless_storage flag.
	* tree.h (TYPE_TYPELESS_STORAGE): New macro.
	* stor-layout.c (place_union_field): Set TYPE_TYPELESS_STORAGE
	for types containing members with TYPE_TYPELESS_STORAGE.
	(place_field): Likewise.
	(layout_type): Likewise for ARRAY_TYPE.
	* lto-streamer-out.c (hash_tree): Hash TYPE_TYPELESS_STORAGE.
	* tree-streamer-in.c (unpack_ts_type_common_value_fields): Stream
	TYPE_TYPELESS_STORAGE.
	* tree-streamer-out.c (pack_ts_type_common_value_fields): Likewise.

	lto/
	* lto.c (compare_tree_sccs_1): Compare TYPE_TYPELESS_STORAGE.

	cp/
	* tree.c (build_cplus_array_type): Set TYPE_TYPELESS_STORAGE
	for arrays of character or std::byte type.

	* g++.dg/torture/pr79671.C: New testcase.
	* g++.dg/lto/pr79671_0.C: Likewise.
	* g++.dg/lto/pr79671_1.c: Likewise.

Co-Authored-By: Bernd Edlinger <bernd.edlinger@hotmail.de>

From-SVN: r246866

	PR sanitizer/80349
	* fold-const.c (fold_binary_loc) <case BIT_IOR_EXPR>: Convert arg0's
	first argument to type.

	* g++.dg/ubsan/pr80349.C: New test.

From-SVN: r246865

	PR go/77857
    cmd/go: generate vendor paths for -I arg on compile
    
    This change generates the vendor path to be used with -I
    on a gccgo compile to find imports from the vendor directories.
    
    Fixes golang/go#15628
    
    Reviewed-on: https://go-review.googlesource.com/39590

From-SVN: r246864

From-SVN: r246863

	* doc/xml/faq.xml: Update reference link to C++ ABI for Itanium.
	* doc/xml/manual/abi.xml. Ditto (thrice).

From-SVN: r246860

2017-04-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR target/80376
	PR target/80315
	* config/rs6000/rs6000.c (rs6000_expand_unop_builtin): Return
	CONST0_RTX (mode) rather than const0_rtx where appropriate.
	(rs6000_expand_binop_builtin): Likewise.
	(rs6000_expand_ternop_builtin): Likewise; also add missing
	vsx_xxpermdi_* variants; also fix typo (arg1 => arg2) for
	vshasigma built-ins.
	* doc/extend.texi: Document that vec_xxpermdi's third argument
	must be a constant.

From-SVN: r246859

	* constexpr.c (reduced_constant_expression_p):
	A null constructor element is non-constant.
	(cxx_eval_indirect_ref): Don't VERIFY_CONSTANT before
	returning an empty base.

From-SVN: r246858

re PR c++/80370 (ICE when using structured bindings and nested generic lambdas (tsubst_decomp_names))

	PR c++/80370
	* decl.c (cp_finish_decomp): If processing_template_decl on
	non-dependent decl, only set TREE_TYPE on the v[i] decls, but don't
	change their DECL_VALUE_EXPR nor cp_finish_decl them.  Instead make
	sure DECL_VALUE_EXPR is the canonical NULL type ARRAY_REF for tsubst
	processing.
	* pt.c (value_dependent_expression_p) <case VAR_DECL>: For variables
	with DECL_VALUE_EXPR, return true if DECL_VALUE_EXPR is type
	dependent.

	* g++.dg/cpp1z/decomp28.C: New test.

From-SVN: r246857

i386.c (dimode_scalar_chain::compute_convert_gain): Use shift_const cost parameter when calculating gain of STV shifts.

	* config/i386/i386.c (dimode_scalar_chain::compute_convert_gain):
	Use shift_const cost parameter when calculating gain of STV shifts.

From-SVN: r246856

2017-04-11  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/70478
	* lra-constraints.c (process_alt_operands): Check memory for
	disfavoring memory insn operand.

From-SVN: r246854

	PR middle-end/80100
	* simplify-rtx.c (simplify_binary_operation_1) <case IOR>: Perform
	left shift in unsigned HOST_WIDE_INT type.

	* gcc.dg/pr80100.c: New test.

From-SVN: r246851

	PR rtl-optimization/80385
	* simplify-rtx.c (simplify_unary_operation_1): Don't transform
	(not (neg X)) into (plus X -1) for complex or non-integral modes.

	* g++.dg/opt/pr80385.C: New test.

From-SVN: r246850

	PR libgomp/80394
	* omp-low.c (scan_omp_task): Don't optimize away empty tasks
	if they have any depend clauses.

	* testsuite/libgomp.c/pr80394.c: New test.

From-SVN: r246849

2017-04-11  Martin Liska  <mliska@suse.cz>

	PR ipa/80212
	* cgraph.c (cgraph_node::dump): Dump calls_comdat_local.
	* ipa-split.c (split_function): Create a local comdat symbol
	if caller is in a comdat group.
2017-04-11  Martin Liska  <mliska@suse.cz>

	PR ipa/80212
	* g++.dg/ipa/pr80212.C: New test.

From-SVN: r246848

2017-04-11  Martin Liska  <mliska@suse.cz>

	PR ipa/80212
	* ipa-cp.c (determine_versionability): Handle calls_comdat_local
	flags.

From-SVN: r246847