PR c++/84639
	* c-attribs.c (common_handle_aligned_attribute): Don't use invalid
	alignment in computation.

From-SVN: r258109

gcc.target/arm/copysign_softfloat_1.c's use of arm_arch_v6t2 in
dg-add-option changes the architecture to -march=armv6t2. Since the test
only requires Thumb-2 capable architecture, we just need to add -mthumb
on the command line since arm_thumb2_ok guarantees by definition that
doing that is enough to select Thumb-2. This fixes warning on the
command line when having -mcpu=cortex-m3 in RUNTESTFLAGS for instance.

2018-03-01  Thomas Preud'homme  <thomas.preudhomme@arm.com

    gcc/testsuite/
    * gcc.target/arm/copysign_softfloat_1.c: Remove dg-add-options and add
    -mthumb to the command-line.

From-SVN: r258108

re PR c++/84596 (internal compiler error: unexpected expression '(bool)c' of kind implicit_conv_expr (cxx_eval_constant_expression))

	PR c++/84596
	* constexpr.c (require_rvalue_constant_expression): New function.
	* cp-tree.h: Declare it.
	* semantics.c (finish_static_assert): Use it instead of
	require_potential_rvalue_constant_expression.

	* g++.dg/cpp0x/static_assert14.C: New test.

From-SVN: r258107

2018-03-01  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/79410
	* g++.dg/torture/pr79410.C: New.

From-SVN: r258106

	* decl.c (start_decl): Handle partial specialization of member
	variable template.
	* pt.c (determine_specialization): Allow partial specialization
	of member variable template without specializing enclosing class.
	(process_partial_specialization): Improve error message.

Co-Authored-By: Alexandre Oliva <aoliva@redhat.com>

From-SVN: r258102

2018-03-01  Martin Liska  <mliska@suse.cz>

	PR sanitizer/82484
	* sanopt.c (sanitize_rewrite_addressable_params): Do not handle
	volatile arguments.
2018-03-01  Martin Liska  <mliska@suse.cz>

	PR sanitizer/82484
	* gcc.dg/asan/pr82484.c: New test.

From-SVN: r258101

re PR debug/84645 (-flto -g0 at compile-time vs. -flto -g at link time ICEs in add_dwarf_attr, at dwarf2out.c:4353)

2018-03-01  Richard Biener  <rguenther@suse.de>

	PR debug/84645
	* dwarf2out.c (gen_variable_die): Properly handle late VLA
	type annotation with LTO when debug was disabled at compile-time.

	* gfortran.dg/lto/pr84645_0.f90: New testcase.

From-SVN: r258100

This issue was caught with assert checking enabled but is not a
functional bug as XINT(x, 0) happens to overlay INTVAL(x) anyway.

gcc/
	* config/mips/mips.c (mips_final_prescan_insn): Fix incorrect
	XINT with INTVAL.
	(mips_final_postscan_insn): Likewise.

From-SVN: r258099

re PR fortran/84219 (Failure to generate error for IO of transfer intrinsic, when MOLD has derived type components.)

2018-03-01  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84219
	* target-memory.c (gfc_interpret_derived): Assert that BT_VOID
	components are caf tokens.
	(gfc_target_interpret_expr): Treat BT_VOID expressions as
	integers.

2018-03-01  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84219
	* gfortran.dg/coarray_47.f90: New test.

From-SVN: r258098

2018-03-01  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84538
	* class.c (class_array_ref_detected): Remove the condition that
	there be no reference after the array reference.
	(find_intrinsic_vtab): Remove excess whitespace.
	* trans-array.c (gfc_conv_scalarized_array_ref): Rename 'tmp'
	as 'base and call build_class_array_ref earlier.

2018-03-01  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84538
	* gfortran.dg/class_array_23.f03: New test.

From-SVN: r258097

From-SVN: r258096

2018-03-01  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/testsuite/
	PR rtl-optimization/84528
	* gcc.dg/torture/pr84538.c: Rename to...
	* gcc.dg/torture/pr84528.c: ...this.

From-SVN: r258095

RTL code needs to be consistent about whether it uses the stack
pointer, the frame pointer or the argument pointer to access a
given part of the frame.  alias.c used this to divide accesses
into three independent areas.

The problem in the PR is that we did this for HARD_FRAME_POINTER_REGNUM
even when the register wasn't being used as a frame pointer.  We can't
do that because the frame pointer is then just any old allocatable
register and could certainly point to info accessed through the
argument pointer or stack pointer.

2018-03-01  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	PR rtl-optimization/84538
	* alias.c (init_alias_target): Add commentary.
	(init_alias_analysis): Only give HARD_FRAME_POINTER_REGNUM
	a unique base value if the frame pointer is not eliminated
	to the stack pointer.

gcc/testsuite/
	PR rtl-optimization/84538
	* gcc.dg/torture/pr84538.c: New test.

From-SVN: r258094

2018-03-01  Tom de Vries  <tom@codesourcery.com>

	PR rtl-optimization/83327
	* lra-int.h (hard_regs_spilled_into): Declare.
	* lra.c (hard_regs_spilled_into): Define.
	(init_reg_info): Init hard_regs_spilled_into.
	* lra-spills.c (assign_spill_hard_regs): Update hard_regs_spilled_into.
	* lra-lives.c (make_hard_regno_born, make_hard_regno_dead)
	(process_bb_lives): Handle hard_regs_spilled_into.
	(lra_create_live_ranges_1): Before doing liveness propagation, clear
	regs in all_hard_regs_bitmap if set in hard_regs_spilled_into.

From-SVN: r258093

From-SVN: r258092

gcc/testsuite/ChangeLog:

	* c-c++-common/Warray-bounds-2.c: Declare helper static to avoid
	-fpic test failures.
	* c-c++-common/Wrestrict-2.c: Same.
	* c-c++-common/Wstringop-truncation.c: Same.
	* gcc.dg/Warray-bounds-22.c: Same.
	* gcc.dg/Wstringop-overflow.c: Same.
	* gcc.dg/attr-alloc_size-3.c (unsigned_range): Same.
	(signed_range): Same.
	(unsigned_anti_range): Same.
	* gcc.dg/attr-alloc_size-4.c (unsigned_range): Same.
	(signed_range): Same.
	(unsigned_anti_range): Same.
	* gcc.dg/attr-alloc_size-7.c: Same.
	* gcc.dg/attr-alloc_size-8.c: Same.
	* gcc.dg/builtin-alloc-size.c: Same.
	* gcc.dg/builtin-stpncpy.c: Same.
	* gcc.dg/builtins-nonnull.c: Same.
	* gcc.dg/nonnull-4.c (g16_1_3_5_7_11_13): Same.
	* gcc.dg/pr79214.c: Same.
	* gcc.dg/tree-ssa/builtin-snprintf-warn-1.c: Same.
	* gcc.dg/tree-ssa/builtin-snprintf-warn-2.c: Same.
	* gcc.dg/tree-ssa/builtin-sprintf-5.c: Same.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-11.c: Same.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-12.c: Same.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-13.c: Same.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-14.c: Same.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-15.c: Same.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-19.c: Same.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-3.c: Same.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-9.c: Same.

From-SVN: r258089

	* pt.c (determine_specialization): Check ref-qualifier.

From-SVN: r258085

* config.gcc (powerpc-ibm-aix7.1.*): New stanza.
(powerpc-ibm-aix[789]*): Default to AIX 7.2.
* config/rs6000/aix71.h (TARGET_DEFAULT): Revert to Power4 ISA.
* config/rs6000/aix72.h: New file.

From-SVN: r258082

        PR target/84014
        * gcc.target/powerpc/pr84014.c: Use ilp32, not -m32 option.

From-SVN: r258081

re PR c++/84609 (internal compiler error: in cp_parser_abort_tentative_parse, at cp/parser.c:28960 (cp_parser_member_declaration()))

	PR c++/84609
	* parser.c (cp_parser_attributes_opt): Formatting fix.
	(cp_parser_skip_balanced_tokens, cp_parser_skip_gnu_attributes_opt,
	cp_parser_skip_std_attribute_spec_seq, cp_parser_skip_attributes_opt):
	New functions.
	(cp_parser_member_declaration): Use cp_parser_skip_attributes_opt
	instead of tentative parse to peek over optional attribute tokens
	to check for CPP_COLON after them.

	* g++.dg/cpp0x/pr84609.C: New test.

From-SVN: r258080

	PR c++/83871
	PR c++/83503
	* pt.c (INCLUDE_STRING): Remove define.
	(warn_spec_missing_attributes): Use pretty_printer instead of
	std::string.  Fix up inform call so that the list of attributes
	is in %s argument.

From-SVN: r258079

gimple-ssa-warn-restrict.c (maybe_diag_overlap): Use warning_n instead of warning_at with conditional singular and plural...

	* gimple-ssa-warn-restrict.c (maybe_diag_overlap): Use warning_n
	instead of warning_at with conditional singular and plural messages
	where possible.

From-SVN: r258078

gcc/cp/ChangeLog:

	* decl.c (duplicate_decls): Fully merge attributes const, pure,
	and malloc.

gcc/testsuite/ChangeLog:

	* g++.dg/ext/attr-malloc-3.C: New test.
	* g++.dg/ext/attr-const.C: Adjust.  Xfail assertions failing due
	to pre-existing problems.
	* g++.dg/ext/attr-pure.C: Same.

From-SVN: r258077

2018-02-28  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83901
	* trans-stmt.c (trans_associate_var): Make sure that the se
	expression is a pointer type before converting it to the symbol
	backend_decl type.

2018-02-28  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83901
	* gfortran.dg/associate_37.f90: New test.

	PR fortran/83344
	* gfortran.dg/associate_36.f90: Add Steve Kargl as contributer.

From-SVN: r258076

	PR target/52991
	* stor-layout.c (update_alignment_for_field): For
	targetm.ms_bitfield_layout_p (rli->t), if !is_bitfield
	&& !DECL_PACKED (field), do the alignment update, just use
	only desired_align instead of MAX (type_align, desired_align)
	as the alignment.
	(place_field): Don't do known_align < desired_align handling
	early if targetm.ms_bitfield_layout_p (rli->t) and rli->prev_field
	is non-NULL, instead do it after rli->prev_field handling and
	only if not within a bitfield word.  For DECL_PACKED (field)
	use type_align of BITS_PER_UNIT.

	* gcc.dg/bf-ms-layout.c: Revert 2012-04-26 changes.
	* gcc.dg/bf-ms-layout-2.c: Revert 2012-02-23 changes.
	* gcc.dg/bf-ms-layout-4.c: New test.
	* gcc.dg/bf-ms-layout-5.c: New test.

From-SVN: r258075

	* config/aarch64/aarch64.c (aarch64_emit_probe_stack_range): Remove
	superfluous parentheses and trailing spaces.

From-SVN: r258074

Revision 258001 doesn't change config/i386/i386.opt.

From-SVN: r258073

	PR target/83399
	* gcc.target/powerpc/pr83399.c: Only run on Linux.

From-SVN: r258071

2018-02-28  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/84584
	* graphite-scop-detection.c (scop_detection::add_scop): Discard
	SCoPs with fake exit edge.

	* gcc.dg/graphite/pr84584.c: New testcase.

From-SVN: r258070

gcc/testsuite:

	PR preprocessor/84517
	* g++.dg/cpp0x/udlit-macros.C: Expect a warning for ""__FILE__.

libcpp:

	PR preprocessor/84517
	* lex.c (is_macro_not_literal_suffix): New function.
	(lex_raw_string, lex_string): Use is_macro_not_literal_suffix to
	decide when to issue -Wliteral-suffix warnings.

From-SVN: r258069

ada/
	* libgnat/i-cexten.ads (Float_128): New type.
c-family/
	* c-ada-spec.c (dump_ada_node) <NULLPTR_TYPE>: New case.
	<REAL_TYPE>: Deal specifically with _Float128/__float128.

From-SVN: r258068

	* c-ada-spec.c (dump_ada_double_name) <ENUMERAL_TYPE>: New case.
	(is_char_array): Take a type instead of a declaration.
	(dump_ada_array_type): Likewise.
	(is_simple_enum): Minor tweak.
	(dump_ada_enum_type): New function extracted from...
	(dump_ada_node) <ENUMERAL_TYPE>: ...here.  Invoke it.
	<INTEGER_TYPE>: Remove unreachable code.
	<RECORD_TYPE>: Likewise.  Minor tweaks.
	(dump_nested_type) <ARRAY_TYPE>: Adjust to above changes.
	<ENUMERAL_TYPE>: New case.
	<RECORD_TYPE>: Factor out common code.
	(dump_ada_declaration) <ARRAY_TYPE>: Adjust to above changes.
	Minor tweaks.  Deal with enumeral types.
	(dump_ada_structure): Minor tweaks.

From-SVN: r258067

	* c-ada-spec.c (dump_ada_node) <POINTER_TYPE>: Do not use generic
	address for incomplete structures.
	(dump_forward_type): Do not bail out for incomplete structures.
	(dump_ada_declaration): Do not special-case incomplete structures
	for subtypes.  Dump them as null records for types.

From-SVN: r258066

	* c-ada-spec.c (dump_ada_import): Use boolean and fix formatting.
	(is_char_array): Fix formatting.
	(dump_template_types): Likewise.
	(dump_generic_ada_node): Rename into...
	(dump_ada_node): ...this.
	<POINTER_TYPE>: Remove superfluous space.  Use generic address for
	incomplete structures and not for empty structures.  Do not use it
	when forward declarations are needed.
	(dump_forward_type): New function.
	(dump_nested_types): Remove FORWARD parameter.  Do not consider
	TREE_VISITED and do not generate a forward declaration.  Only dump
	original nested types for nested declaration.
	(dump_nested_type) <POINTER_TYPE>: Call dump_forward_type.
	<ARRAY_TYPE>: Likewise if the component type is an anonymous pointer.
	<RECORD_TYPE>: Do not consider TREE_VISITED.
	(dump_ada_declaration): Use booleans and fix formatting throughout.
	<TYPE_DECL>: Skip incomplete structures and not empty structures.
	Call dump_forward_type instead of dump_nested_types for a typedef.
	Remove superfluous check and adjust call to dump_nested_types.
	<POINTER_TYPE>: Call dump_forward_type and fall through.
	(dump_ada_struct_decl): Rename into...
	(dump_ada_structure): ...this.  Do not special-case empty structures.

From-SVN: r258064

2018-02-28  Martin Liska  <mliska@suse.cz>

	PR testsuite/84597
	* timevar.c (timer::print): Fix format to properly print 100%
	values.
2018-02-28  Martin Liska  <mliska@suse.cz>

	PR testsuite/84597
	* g++.dg/ext/timevar1.C: Fix pruned patterns.
	* g++.dg/ext/timevar2.C: Likewise.

From-SVN: r258063

	* c-ada-spec.c (dump_ada_import): Use boolean and fix formatting.
	(is_char_array): Fix formatting.
	(dump_template_types): Likewise.
	(dump_generic_ada_node): Rename into...
	(dump_ada_node): ...this.
	<POINTER_TYPE>: Remove superfluous space.  Use generic address for
	incomplete structures and not for empty structures.  Do not use it
	when forward declarations are needed.
	(dump_forward_type): New function.
	(dump_nested_types): Remove FORWARD parameter.  Do not consider
	TREE_VISITED and do not generate a forward declaration.  Only dump
	original nested types for nested declaration.
	(dump_nested_type) <POINTER_TYPE>: Call dump_forward_type.
	<ARRAY_TYPE>: Likewise if the component type is an anonymous pointer.
	<RECORD_TYPE>: Do not consider TREE_VISITED.
	(dump_ada_declaration): Use booleans and fix formatting throughout.
	<TYPE_DECL>: Skip incomplete structures and not empty structures.
	Call dump_forward_type instead of dump_nested_types for a typedef.
	Remove superfluous check and adjust call to dump_nested_types.
	<POINTER_TYPE>: Call dump_forward_type and fall through.
	(dump_ada_struct_decl): Rename into...
	(dump_ada_structure): ...this.  Do not special-case empty structures.

From-SVN: r258062

2018-02-28  Richard Biener  <rguenther@suse.de>

	PR middle-end/84607
	* genmatch.c (capture_info::walk_match): Do not mark
	captured expressions without operands as expr_p given
	they act more like predicates and should be subject to
	"lost tail" side-effect preserving.

	* gcc.dg/pr84607.c: New testcase.

From-SVN: r258061

https://gcc.gnu.org/ml/gcc-patches/2018-02/msg01577.html
	PR c++/84602
	* name-lookup.h (search_anon_aggr): Add defaulted WANT_TYPE arg.
	* name-lookup.c (fields_linear_search): Look in an anon-aggr
	regardless of want_type.
	(search_anon_aggr): Just use get_class_binding_direct.

	PR c++/84602
	* g++.dg/lookup/pr84602.C: New.

From-SVN: r258060

	PR c++/83871
	PR c++/83503
	* g++.dg/ext/attr-warning.C: Remove -fdump-tree-optimized from
	dg-options.
	* g++.dg/ext/attr-nonnull.C: Likewise.
	* g++.dg/ext/attr-noinline.C: Fix syntax in scan-tree-dump-not directives.
	* g++.dg/ext/attr-noinline-2.C: Likewise.
	* g++.dg/ext/attr-noreturn-2.C: Use -fdump-tree-optimized instead of
	-fdump-tree-eh in dg-options.

From-SVN: r258059

	* decl.c (cp_finish_decomp): Don't adjust eltscnt when calling
	inform_n.

From-SVN: r258058