* 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

gcc/ChangeLog:
	PR middle-end/80364
	* gimple-ssa-sprintf.c (get_int_range): Remove second argument and
	always use the int type.  Use INTEGRAL_TYPE_P() rather than testing
	for INTEGER_TYPE.
	(directive::set_width, directive::set_precision, format_character):
	Adjust.
	(parse_directive): Use INTEGRAL_TYPE_P() rather than testing for
	INTEGER_TYPE.

gcc/testsuite/ChangeLog:
	PR middle-end/80364
	* gcc.dg/tree-ssa/builtin-sprintf-warn-16.c: New test.

From-SVN: r246846

2017-04-11  Damian Rouson  <damian@sourceryinstitute.org>

        * download_prerequisites (md5_check): New function emulates Linux
        'md5 --check' on macOS.  Modified script for macOS compatibility.

From-SVN: r246845

In this PR we incorrectly print the architecture name in a .cpu
directive in the assembly file when the -mcpu and -march options
conflict (don't target the same base architecture).  In this case the
.arch overrides the .cpu directive and we should emit a .arch option.

PR target/80389
* config/arm/arm.c (arm_configure_build_target): When -mcpu and -arch conflict,
set target->arch_name instead of target->cpu_name.

From-SVN: r246843

2017-04-11  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	* close.c: Fix white space in pointer declarations and comment
	formats where applicable.
	* fbuf.c: Likewise.
	* fbuf.h: Likewise.
	* format.c: Likewise.
	* inquire.c: Likewise.
	* intrinsics.c: Likewise.
	* list_read.c: Likewise.
	* lock.c: Likewise.
	* open.c: Likewise.
	* read.c: Likewise.
	* transfer.c: Likewise.
	* unit.c: Likewise.
	* unix.c: Likewise.
	* unix.h: Likewise.
	* write.c: Likewise.

From-SVN: r246842

2017-04-11  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/80374
	* tree-ssa-dom.c (derive_equivalences_from_bit_ior): Use
	build_zero_cst, remove fold_convertible_p check again.

From-SVN: r246840

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

	PR sanitizer/70878
	* ubsan.c (instrument_object_size): Do not instrument register
	variables.
2017-04-11  Martin Liska  <mliska@suse.cz>

	PR sanitizer/70878
	* gcc.dg/ubsan/pr70878.c: New test.

From-SVN: r246837

	PR target/80381
	* config/i386/i386-builtin-types.def
	(V16HI_FTYPE_V16HI_INT_V16HI_UHI_COUNT,
	V16HI_FTYPE_V16HI_V8HI_V16HI_UHI_COUNT,
	V16SI_FTYPE_V16SI_INT_V16SI_UHI_COUNT,
	V16SI_FTYPE_V16SI_V4SI_V16SI_UHI_COUNT,
	V2DI_FTYPE_V2DI_INT_V2DI_UQI_COUNT,
	V2DI_FTYPE_V2DI_V2DI_V2DI_UQI_COUNT,
	V32HI_FTYPE_V32HI_INT_V32HI_USI_COUNT,
	V32HI_FTYPE_V32HI_V8HI_V32HI_USI_COUNT,
	V4DI_FTYPE_V4DI_INT_V4DI_UQI_COUNT,
	V4DI_FTYPE_V4DI_V2DI_V4DI_UQI_COUNT,
	V4SI_FTYPE_V4SI_INT_V4SI_UQI_COUNT,
	V4SI_FTYPE_V4SI_V4SI_V4SI_UQI_COUNT,
	V8DI_FTYPE_V8DI_INT_V8DI_UQI_COUNT,
	V8DI_FTYPE_V8DI_V2DI_V8DI_UQI_COUNT,
	V8HI_FTYPE_V8HI_INT_V8HI_UQI_COUNT,
	V8HI_FTYPE_V8HI_V8HI_V8HI_UQI_COUNT,
	V8SI_FTYPE_V8SI_INT_V8SI_UQI_COUNT,
	V8SI_FTYPE_V8SI_V4SI_V8SI_UQI_COUNT): New function type aliases.
	* config/i386/i386-builtin.def (__builtin_ia32_pslld512_mask,
	__builtin_ia32_pslldi512_mask, __builtin_ia32_psllq512_mask,
	__builtin_ia32_psllqi512_mask, __builtin_ia32_psrad512_mask,
	__builtin_ia32_psradi512_mask, __builtin_ia32_psraq512_mask,
	__builtin_ia32_psraqi512_mask, __builtin_ia32_psrld512_mask,
	__builtin_ia32_psrldi512_mask, __builtin_ia32_psrlq512_mask,
	__builtin_ia32_psrlqi512_mask, __builtin_ia32_psllwi128_mask,
	__builtin_ia32_pslldi128_mask, __builtin_ia32_psllqi128_mask,
	__builtin_ia32_psllw128_mask, __builtin_ia32_pslld128_mask,
	__builtin_ia32_psllq128_mask, __builtin_ia32_psllwi256_mask,
	__builtin_ia32_psllw256_mask, __builtin_ia32_pslldi256_mask,
	__builtin_ia32_pslld256_mask, __builtin_ia32_psllqi256_mask,
	__builtin_ia32_psllq256_mask, __builtin_ia32_psradi128_mask,
	__builtin_ia32_psrad128_mask, __builtin_ia32_psradi256_mask,
	__builtin_ia32_psrad256_mask, __builtin_ia32_psraqi128_mask,
	__builtin_ia32_psraq128_mask, __builtin_ia32_psraqi256_mask,
	__builtin_ia32_psraq256_mask, __builtin_ia32_psrldi128_mask,
	__builtin_ia32_psrld128_mask, __builtin_ia32_psrldi256_mask,
	__builtin_ia32_psrld256_mask, __builtin_ia32_psrlqi128_mask,
	__builtin_ia32_psrlq128_mask, __builtin_ia32_psrlqi256_mask,
	__builtin_ia32_psrlq256_mask, __builtin_ia32_psrawi256_mask,
	__builtin_ia32_psraw256_mask, __builtin_ia32_psrawi128_mask,
	__builtin_ia32_psraw128_mask, __builtin_ia32_psrlwi256_mask,
	__builtin_ia32_psrlw256_mask, __builtin_ia32_psrlwi128_mask,
	__builtin_ia32_psrlw128_mask, __builtin_ia32_psllwi512_mask,
	__builtin_ia32_psllw512_mask, __builtin_ia32_psrawi512_mask,
	__builtin_ia32_psraw512_mask, __builtin_ia32_psrlwi512_mask,
	__builtin_ia32_psrlw512_mask): Use _COUNT suffixed function type
	aliases.
	* config/i386/i386.c (ix86_expand_args_builtin): Rename last_arg_count
	flag to second_arg_count, handle 4 argument function type _COUNT
	aliases, handle second_arg_count on second argument rather than last.

	* gcc.target/i386/pr80381.c: New test.

From-SVN: r246835

	PR c++/80363
	* error.c (dump_expr): Handle VEC_COND_EXPR like COND_EXPR.

	* g++.dg/ext/pr80363.C: New test.

From-SVN: r246834

From-SVN: r246832

This patch fixes a whole bunch of failures reported for
gcc.dg/tree-ssa/builtin-sprintf-warn-{3,10}.c for the avr target.

builtin-sprintf-warn-10.c fails because the bounds in the warning
messages expect 4 digit wide exponents i.e. __DBL_MAX_EXP__ > 999.
For the avr, floats and doubles are both 32 bits wide, __DBL_MAX_EXP__
== 128, and the max number of exponent digits can only be 3 .
The computed size thus ends up one short of the value the test
expects. The patch makes the test run only for targets with double64plus.

builtin-sprintf-warn-3.c fails because the test appears to assume all
non lp64 targets to be ilp32. For the avr, pointer size and int size
are equal, but both are 16 bits, not 32. The patch fixes this by
explicitly adding avr to the dejagnu selector.

gcc/testsuite

2017-04-06  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

	* gcc.dg/tree-ssa/builtin-sprintf-warn-10.c: Require double64plus.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-3.c (void test_too_large): 
	Add avr-*-* to non-lp64 selector.

From-SVN: r246831