PR target/91204
	* optabs.c (expand_unop): As fallback, expand ~op0 as op0 ^ -1.

	* gcc.c-torture/compile/pr91204.c: New test.

From-SVN: r273629

	* config/pa/pa.h (hppa_profile_hook): Delete declaration.
	* config/pa/pa-protos.h (hppa_profile_hook): Add declaration.

From-SVN: r273628

In general, when we see a dependent using-declaration we don't know whether
it names a function or not, so it doesn't get an OVERLOAD unless we see
overloads of the same name in the current class.  In the case of an
inherited constructor we could figure that out from the name, but it's
simpler to handle USING_DECL properly.

	* cp-tree.h (ovl_iterator::using_p): A USING_DECL by itself was also
	introduced by a using-declaration.

From-SVN: r273623

I was seeing memory consumption issues on the concepts-cxx2a
branch. push_scope was, surprisingly, at the top of -fmem-report, and
push_access_scope was pretty high.  Fixing them was pretty simple.

	* name-lookup.c (leave_scope): Do add class levels other than
	previous_class_level to free_binding_level.
	(invalidate_class_lookup_cache): Move from class.c, add to
	free_binding_level.
	* pt.c (saved_access_scope): Change from list to vec.

From-SVN: r273622

	* tree.def (OMP_LOOP): New tree code.
	* tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_BIND.
	(enum omp_clause_bind_kind): New enum.
	(struct tree_omp_clause): Add subcode.bind_kind.
	* tree.h (OMP_LOOP_CHECK): Rename to ...
	(OMP_LOOPING_CHECK): ... this.
	(OMP_FOR_BODY, OMP_FOR_CLAUSES, OMP_FOR_INIT, OMP_FOR_COND,
	OMP_FOR_INCR, OMP_FOR_PRE_BODY, OMP_FOR_ORIG_DECLS): Use
	OMP_LOOPING_CHECK instead of OMP_LOOP_CHECK.
	(OMP_CLAUSE_BIND_KIND): Define.
	* tree.c (omp_clause_num_ops, omp_clause_code_name): Add
	bind clause entries.
	(walk_tree_1): Handle OMP_CLAUSE_BIND.
	* tree-pretty-print.c (dump_omp_clause): Likewise.
	(dump_generic_node): Handle OMP_LOOP.
	* gimplify.c (enum omp_region_type): Add ORT_IMPLICIT_TARGET.
	(in_omp_construct): New variable.
	(is_gimple_stmt): Handle OMP_LOOP.
	(gimplify_scan_omp_clauses): For lastprivate don't set
	check_non_private if code == OMP_LOOP.  For reduction clause
	on OMP_LOOP combined with parallel or teams propagate as shared
	on the combined construct.  Handle OMP_CLAUSE_BIND.
	(gimplify_adjust_omp_clauses): Handle OMP_CLAUSE_BIND.
	(gimplify_omp_for): Pass OMP_LOOP instead of OMP_{FOR,DISTRIBUTE}
	for constructs from a loop construct to gimplify_scan_omp_clauses.
	Don't predetermine iterator linear on OMP_SIMD from loop construct.
	(replace_reduction_placeholders, gimplify_omp_loop): New functions.
	(gimplify_omp_workshare): Use ORT_IMPLICIT_TARGET instead of trying
	to match the implicit ORT_TARGET construct around whole body.
	Temporarily clear in_omp_construct when processing body.
	(gimplify_expr): Handle OMP_LOOP.  For OMP_MASTER, OMP_TASKGROUP
	etc. temporarily set in_omp_construct when processing body.
	(gimplify_body): Create ORT_IMPLICIT_TARGET instead of ORT_TARGET.
	* omp-low.c (struct omp_context): Add loop_p.
	(build_outer_var_ref): Treat ctx->loop_p similarly to simd construct
	in that the original var might be private.
	(scan_sharing_clauses): Handle OMP_CLAUSE_BIND.
	(check_omp_nesting_restrictions): Adjust nesting restrictions for
	addition of loop construct.
	(scan_omp_1_stmt): Allow setjmp inside of loop construct.
gcc/c-family/
	* c-pragma.h (enum pragma_kind): Add PRAGMA_OMP_LOOP.
	(enum pragma_omp_clause): Add PRAGMA_OMP_CLAUSE_BIND.
	* c-pragma.c (omp_pragmas_simd): Add PRAGMA_OMP_LOOP entry.
	* c-common.h (enum c_omp_clause_split): Add C_OMP_CLAUSE_SPLIT_LOOP.
	* c-omp.c (c_omp_split_clauses): Add support for 4 new combined
	constructs with the loop construct.
gcc/c/
	* c-parser.c (c_parser_omp_clause_name): Handle bind clause.
	(c_parser_omp_clause_bind): New function.
	(c_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_BIND.
	(OMP_LOOP_CLAUSE_MASK): Define.
	(c_parser_omp_loop): New function.
	(c_parser_omp_parallel, c_parser_omp_teams): Handle parsing of
	loop combined with parallel or teams.
	(c_parser_omp_construct): Handle PRAGMA_OMP_LOOP.
	* c-typeck.c (c_finish_omp_clauses): Handle OMP_CLAUSE_BIND.
gcc/cp/
	* cp-tree.h (OMP_FOR_GIMPLIFYING_P): Use OMP_LOOPING_CHECK
	instead of OMP_LOOP_CHECK.
	* parser.c (cp_parser_omp_clause_name): Handle bind clause.
	(cp_parser_omp_clause_bind): New function.
	(cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_BIND.
	(OMP_LOOP_CLAUSE_MASK): Define.
	(cp_parser_omp_loop): New function.
	(cp_parser_omp_parallel, cp_parser_omp_teams): Handle parsing of
	loop combined with parallel or teams.
	(cp_parser_omp_construct): Handle PRAGMA_OMP_LOOP.
	(cp_parser_pragma): Likewise.
	* pt.c (tsubst_expr): Handle OMP_LOOP.
	* semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_BIND.
gcc/testsuite/
	* c-c++-common/gomp/cancel-1.c: Adjust expected diagnostic wording.
	* c-c++-common/gomp/clauses-1.c (foo, baz, bar): Add order(concurrent)
	clause where allowed.  Add combined constructs with loop with all
	possible clauses.
	(qux): New function.
	* c-c++-common/gomp/loop-1.c: New test.
	* c-c++-common/gomp/loop-2.c: New test.
	* c-c++-common/gomp/loop-3.c: New test.
	* c-c++-common/gomp/loop-4.c: New test.
	* c-c++-common/gomp/loop-5.c: New test.
	* c-c++-common/gomp/order-3.c: Adjust expected diagnostic wording.
	* c-c++-common/gomp/simd-setjmp-1.c: New test.
	* c-c++-common/gomp/teams-2.c: Adjust expected diagnostic wording.
libgomp/
	* testsuite/libgomp.c-c++-common/loop-1.c: New test.

From-SVN: r273621

omp-low.c (lower_rec_input_clauses): Don't force simd arrays for lastprivate non-addressable iterator of a...

	* omp-low.c (lower_rec_input_clauses): Don't force simd arrays for
	lastprivate non-addressable iterator of a collapse(1) simd.

	* gcc.dg/vect/vect-simd-16.c: New test.

From-SVN: r273620

From-SVN: r273615

    
    The current Mark_inline_candidates helper looks only at budget when
    deciding to mark a function or method as inline (with the proviso that
    IR constructs not yet supported by the inliner are given artificially
    high cost). This patch changes the helper to also look at whether a
    function has the "go:noinline" pragma; if it does have the pragma
    there is no point putting it into the export data (it will just make
    the export data bigger).
    
    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/186923

From-SVN: r273611

2019-07-17  Bill Seurer  <seurer@linux.vnet.ibm.com>

	* config/rs6000/rs6000-call.c (HAVE_AS_GNU_ATTRIBUTE): define value
	as in rs6000.c.

From-SVN: r273610

2019-07-19  François Dumont  <fdumont@gcc.gnu.org>

	* include/bits/stl_tempbuf.h (__detail::__return_temporary_buffer): Fix
	sized deallocation size computation.

From-SVN: r273609

This strips out a few driver specs that are only specifying a default state.
Also warn on an option now ignored, and add some comments to the driver specs
section.

2019-07-19  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.h (DRIVER_SELF_SPECS): Ignore X and Mach specs which
	refer to default conditions.  Warn for the 'y' spec which is ignored
	by current linkers.

From-SVN: r273608

The source file rs6000.c has grown to unreasonable size and is being
split up into several smaller source files.  This should improve
compilation speed for building gcc.

This is the second of several patches to do this and moves most of the
function call and builtin code to a new source file.

Bootstrapped and tested on powerpc64le-unknown-linux-gnu and
powerpc64-unknown-linux-gnu with no regressions.  Is this ok for trunk?


2019-07-17  Bill Seurer  <seurer@linux.vnet.ibm.com>

	* config/rs6000/rs6000.c (builtin_description, cpu_is_info,
	cpu_supports_info, builtin_hash_struct, builtin_hasher,
	builtin_hash_table, rs6000_builtin_info_type, rs6000_builtin_info,
	rs6000_aggregate_candidate, rs6000_discover_homogeneous_aggregate,
	rs6000_return_in_memory, rs6000_return_in_msb, call_ABI_of_interest,
	init_cumulative_args, rs6000_promote_function_mode,
	rs6000_must_pass_in_stack, is_complex_IBM_long_double,
	abi_v4_pass_in_fpr, rs6000_function_arg_padding,
	rs6000_function_arg_boundary, rs6000_parm_offset,
	rs6000_parm_start, rs6000_arg_size,
	rs6000_darwin64_record_arg_advance_flush,
	rs6000_darwin64_record_arg_advance_recurse,
	rs6000_darwin64_struct_check_p, rs6000_function_arg_advance_1,
	rs6000_function_arg_advance, rs6000_darwin64_record_arg_flush,
	rs6000_darwin64_record_arg_recurse, rs6000_darwin64_record_arg,
	rs6000_mixed_function_arg, rs6000_psave_function_arg,
	rs6000_finish_function_arg, rs6000_function_arg,
	rs6000_arg_partial_bytes, rs6000_pass_by_reference,
	rs6000_parm_needs_stack, rs6000_function_parms_need_stack,
	rs6000_reg_parm_stack_space, rs6000_move_block_from_reg,
	setup_incoming_varargs, rs6000_build_builtin_va_list, rs6000_va_start,
	rs6000_gimplify_va_arg, def_builtin, bdesc_3arg, bdesc_dst,
	bdesc_2arg, bdesc_altivec_preds, bdesc_abs, bdesc_1arg, bdesc_0arg,
	bdesc_htm, rs6000_overloaded_builtin_p, rs6000_overloaded_builtin_name,
	rs6000_expand_zeroop_builtin, rs6000_expand_mtfsf_builtin,
	rs6000_expand_mtfsb_builtin, rs6000_expand_set_fpscr_rn_builtin,
	rs6000_expand_set_fpscr_drn_builtin, rs6000_expand_unop_builtin,
	altivec_expand_abs_builtin, rs6000_expand_binop_builtin,
	altivec_expand_predicate_builtin, swap_endian_selector_for_mode,
	altivec_expand_lv_builtin, altivec_expand_stxvl_builtin,
	altivec_expand_stv_builtin, htm_spr_num, rs6000_htm_spr_icode,
	htm_expand_builtin, cpu_expand_builtin, rs6000_expand_ternop_builtin,
	altivec_expand_dst_builtin, altivec_expand_vec_init_builtin,
	get_element_number, altivec_expand_vec_set_builtin,
	altivec_expand_vec_ext_builtin, altivec_expand_builtin,
	rs6000_builtin_is_supported_p, rs6000_invalid_builtin,
	rs6000_fold_builtin, rs6000_builtin_valid_without_lhs,
	fold_build_vec_cmp, fold_compare_helper, fold_mergehl_helper,
	fold_mergeeo_helper, rs6000_gimple_fold_builtin,
	rs6000_expand_builtin, rs6000_vector_type,
	rs6000_init_builtins, rs6000_builtin_decl, altivec_init_builtins,
	htm_init_builtins, builtin_function_type, rs6000_common_init_builtins,
	rs6000_internal_arg_pointer, rs6000_output_mi_thunk): Move
	to rs6000-call.c.
	* config/rs6000/rs6000-call.c (builtin_description, cpu_is_info,
	cpu_supports_info, builtin_hash_struct, builtin_hasher,
	builtin_hash_table, rs6000_builtin_info_type, rs6000_builtin_info,
	rs6000_aggregate_candidate, rs6000_discover_homogeneous_aggregate,
	rs6000_return_in_memory, rs6000_return_in_msb, call_ABI_of_interest,
	init_cumulative_args, rs6000_promote_function_mode,
	rs6000_must_pass_in_stack, is_complex_IBM_long_double,
	abi_v4_pass_in_fpr, rs6000_function_arg_padding,
	rs6000_function_arg_boundary, rs6000_parm_offset,
	rs6000_parm_start, rs6000_arg_size,
	rs6000_darwin64_record_arg_advance_flush,
	rs6000_darwin64_record_arg_advance_recurse,
	rs6000_darwin64_struct_check_p, rs6000_function_arg_advance_1,
	rs6000_function_arg_advance, rs6000_darwin64_record_arg_flush,
	rs6000_darwin64_record_arg_recurse, rs6000_darwin64_record_arg,
	rs6000_mixed_function_arg, rs6000_psave_function_arg,
	rs6000_finish_function_arg, rs6000_function_arg,
	rs6000_arg_partial_bytes, rs6000_pass_by_reference,
	rs6000_parm_needs_stack, rs6000_function_parms_need_stack,
	rs6000_reg_parm_stack_space, rs6000_move_block_from_reg,
	setup_incoming_varargs, rs6000_build_builtin_va_list, rs6000_va_start,
	rs6000_gimplify_va_arg, def_builtin, bdesc_3arg, bdesc_dst,
	bdesc_2arg, bdesc_altivec_preds, bdesc_abs, bdesc_1arg, bdesc_0arg,
	bdesc_htm, rs6000_overloaded_builtin_p, rs6000_overloaded_builtin_name,
	rs6000_expand_zeroop_builtin, rs6000_expand_mtfsf_builtin,
	rs6000_expand_mtfsb_builtin, rs6000_expand_set_fpscr_rn_builtin,
	rs6000_expand_set_fpscr_drn_builtin, rs6000_expand_unop_builtin,
	altivec_expand_abs_builtin, rs6000_expand_binop_builtin,
	altivec_expand_predicate_builtin, swap_endian_selector_for_mode,
	altivec_expand_lv_builtin, altivec_expand_stxvl_builtin,
	altivec_expand_stv_builtin, htm_spr_num, rs6000_htm_spr_icode,
	htm_expand_builtin, cpu_expand_builtin, rs6000_expand_ternop_builtin,
	altivec_expand_dst_builtin, altivec_expand_vec_init_builtin,
	get_element_number, altivec_expand_vec_set_builtin,
	altivec_expand_vec_ext_builtin, altivec_expand_builtin,
	rs6000_builtin_is_supported_p, rs6000_invalid_builtin,
	rs6000_fold_builtin, rs6000_builtin_valid_without_lhs,
	fold_build_vec_cmp, fold_compare_helper, fold_mergehl_helper,
	fold_mergeeo_helper, rs6000_gimple_fold_builtin,
	rs6000_expand_builtin, rs6000_vector_type,
	rs6000_init_builtins, rs6000_builtin_decl, altivec_init_builtins,
	htm_init_builtins, builtin_function_type, rs6000_common_init_builtins,
	rs6000_internal_arg_pointer, rs6000_output_mi_thunk: Move
	to here from rs6000.c.
	* config/rs6000/rs6000-internal.h: (rs6000_darwin64_struct_check_p,
	rs6000_discover_homogeneous_aggregate, rs6000_output_mi_thunk,
	rs6000_output_addr_const_extra, rs6000_gimple_fold_builtin,
	rs6000_invalid_builtin, rs6000_build_builtin_va_list, rs6000_va_start,
	rs6000_gimplify_va_arg, rs6000_promote_function_mode,
	rs6000_return_in_memory, rs6000_return_in_msb,
	rs6000_pass_by_reference, setup_incoming_varargs,
	rs6000_function_arg_boundary, rs6000_must_pass_in_stack,
	rs6000_arg_partial_bytes, rs6000_function_arg_advance,
	rs6000_function_arg_padding, rs6000_function_arg,
	rs6000_darwin64_record_arg, rs6000_internal_arg_pointer,
	rs6000_init_builtins, rs6000_builtin_decl, rs6000_expand_builtin,
	rs6000_fold_builtin, rs6000_passes_ieee128, rs6000_passes_float,
	rs6000_passes_long_double, rs6000_passes_vector,
	rs6000_returns_struct, cpu_builtin_p, tree builtin_mode_to_type,
	altivec_builtin_mask_for_load) Add declarations.
	* config/rs6000/t-rs6000: Add new source file rs6000-call.c.
	* config/config.gcc: Add new source file rs6000-call.c to garbage
	collector and extra_objs.

From-SVN: r273607

	* tree-ssa-dse.c (initialize_ao_ref_for_dse): Handle
	strncpy.  Drop some trivial dead code.
	(maybe_trim_memstar_call): Handle strncpy.

	* gcc.dg/tree-ssa/ssa-dse-37.c: New test.
	* gcc.dg/tree-ssa/ssa-dse-38.c: New test.

From-SVN: r273606

re PR tree-optimization/91211 (wrong code with __builtin_memset() and __builtin_memcpy() at -O1 and above)

2019-07-19  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/91211
	* tree-ssa-sccvn.c (vn_walk_cb_data::push_partial_def): Fix
	memset encoding size.

	* gcc.dg/torture/pr91211.c: New testcase.

From-SVN: r273605

	PR target/91204
	* config/i386/mmx.md (one_cmpl<mode>2): New expander.

From-SVN: r273604

	PR ipa/91194
	* ipa-inline.c (recursive_inlining): Fix limits check.

From-SVN: r273603

2019-07-19  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/91200
	* tree-ssa-phiopt.c (cond_store_replacement): Check we have
	no PHI nodes in middle-bb.

	* gcc.dg/torture/pr91200.c: New testcase.

From-SVN: r273602

After some discussion, we've decided to rename the +bitperm feature
flag to +sve2-bitperm, so that it's consistent with the other SVE2
feature flags.  The associated macro was already
__ARM_FEATURE_SVE2_BITPERM, so only the feature flag itself
needs to change.

2019-07-19  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* doc/invoke.texi: Rename the AArch64 +bitperm extension flag
	to +sve-bitperm.
	* config/aarch64/aarch64-option-extensions.def: Likewise.

From-SVN: r273600

	PR middle-end/91190
	* function.c (insert_temp_slot_address): Store into the hash table
	a copy of address to avoid RTL sharing issues.

	* gcc.c-torture/compile/pr91190.c: New test.

From-SVN: r273599

From-SVN: r273598

2019-07-19  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/91207
	Revert
	2019-07-17  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/91178
	* tree-vect-stmts.c (get_group_load_store_type): For SLP
	loads with a gap larger than the vector size always use
	VMAT_STRIDED_SLP.
	(vectorizable_load): For VMAT_STRIDED_SLP with a permutation
	avoid loading vectors that are only contained in the gap
	and thus are not needed.

	* gcc.dg/torture/pr91207.c: New testcase.

From-SVN: r273593

We shouldn't complain that a dependent type is incomplete.

	* pt.c (invalid_nontype_parm_type_p): Check for dependent class type.

From-SVN: r273592

A non-type template parameter of class type used in an expression has
const-qualified type; the pt.c hunks deal with this difference from the
unqualified type of the parameter declaration.  WAhen we use such a
parameter as an argument to another template, we don't want to confuse
things by copying it, we should pass it straight through.  And we might as
well skip copying other classes in constant evaluation context in a
template, too; we'll get the copy semantics at instantiation time.

	PR c++/90099
	PR c++/90101
	* call.c (build_converted_constant_expr_internal): Don't copy.
	* pt.c (process_partial_specialization): Allow VIEW_CONVERT_EXPR
	around class non-type parameter.
	(unify) [TEMPLATE_PARM_INDEX]: Ignore cv-quals.

From-SVN: r273591

From-SVN: r273590

2019-07-18  François Dumont  <fdumont@gcc.gnu.org>

	* include/bits/stl_tempbuf.h (__detail::__return_temporary_buffer): New.
	(~_Temporary_buffer()): Use latter.
	(_Temporary_buffer(_FIterator, size_type)): Likewise.

From-SVN: r273586

	* config/i386/i386.md (*addqi_2_slp): Remove.
	(*<code>qi_2_slp): Ditto.

From-SVN: r273583

2019-07-18  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/predicates.md (prefixed_mem_operand): Call
	rs6000_prefixed_address_mode_p instead of rs6000_prefixed_address.
	* config/rs6000/rs6000-protos.h (rs6000_prefixed_address_mode_p):
	Rename function from rs6000_prefixed_address.
	* config/rs6000/rs6000.c (rs6000_prefixed_address_mode_p): Rename
	function from rs6000_prefixed_address.

From-SVN: r273580

2019-07-18  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/aix.h (TARGET_HAS_TOC): Rename TARGET_TOC to
	TARGET_HAS_TOC.
	(TARGET_TOC): Likewise.
	(TARGET_NO_TOC): Delete here, define TARGET_NO_TOC_OR_PCREL in
	rs6000.h.
	* config/rs6000/darwin.h (TARGET_HAS_TOC): Rename TARGET_TOC to
	TARGET_HAS_TOC.
	(TARGET_TOC): Likewise.
	(TARGET_NO_TOC): Delete here, define TARGET_NO_TOC_OR_PCREL in
	rs6000.h.
	* config/rs6000/linux64.h (TARGET_HAS_TOC): Rename TARGET_TOC to
	TARGET_HAS_TOC.
	(TARGET_TOC): Likewise.
	* config/rs6000/rs6000.c (rs6000_option_override_internal): Add
	check to require -mcmodel=medium for pc-relative addressing.
	(create_TOC_reference): Add assertion for TARGET_TOC.
	(rs6000_legitimize_address): Use TARGET_NO_TOC_OR_PCREL instead of
	TARGET_NO_TOC.
	(rs6000_emit_move): Likewise.
	(TOC_alias_set): Rename TOC alias set static variable from 'set'
	to 'TOC_alias_set'.
	(get_TOC_alias_set): Likewise.
	(output_toc): Use TARGET_NO_TOC_OR_PCREL instead of
	TARGET_NO_TOC.
	(rs6000_can_eliminate): Likewise.
	* config/rs6000/rs6000.h (TARGET_TOC): Define in terms of
	TARGET_HAS_TOC and not pc-relative.
	(TARGET_NO_TOC_OR_PCREL): New macro to replace TARGET_NO_TOC.
	* config/rs6000/sysv4.h (TARGET_HAS_TOC): Rename TARGET_TOC to
	TARGET_HAS_TOC.
	(TARGET_TOC): Likewise.
	(TARGET_NO_TOC): Delete here, define TARGET_NO_TOC_OR_PCREL in
	rs6000.h.

From-SVN: r273579

	PR target/91188
	* config/i386/i386.md (*addqi_1_slp): Use register_operand predicate
	for operand 0.  Do not use (match_dup) to match operand 1 with
	operand 0.  Add check in insn constraint that either input operand
	matches operand 0.  Use SWI12 mode iterator to also handle
	HImode operands.
	(*and<mode>_1_slp): Ditto.
	(*<code>qi_1_slp): Ditto.
	(*sub<mode>_1_slp): Use register_operand predicate for operand 0.
	Do not use (match_dup) to match operand 1 with operand 0.  Add
	check in insn constraint that operand 1 matches operand 0.
	Use SWI12 mode iterator to also handle HImode operands.
	(*ashl<mode>3_1_slp): Ditto.
	(*<shift_insn><mode>3_1_slp): Ditto.
	(*<rotate_insn><mode>3_1_slp): Ditto.

testsuite/ChangeLog:

	PR target/91188
	* gcc.target/i386/pr91188-1a.c: New test.
	* gcc.target/i386/pr91188-1b.c: Ditto.
	* gcc.target/i386/pr91188-1c.c: Ditto.
	* gcc.target/i386/pr91188-2a.c: Ditto.
	* gcc.target/i386/pr91188-2b.c: Ditto.
	* gcc.target/i386/pr91188-2c.c: Ditto.

From-SVN: r273578

    
    This patch fixes a buglet in the function body importer. Add hooks for
    keeping a stack of blocks corresponding to the block nesting in the
    imported function. This ensures that local variables and temps wind up
    correctly scoped and don't introduce collisions.
    
    New test case for this problem in CL 186717.
    
    Fixes golang/go#33158.
    
    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/186757

From-SVN: r273577

Makefile.rtl, [...]: Introduce a "STANDALONE" mode where C runtime files do not have any dependency...

	* Makefile.rtl, expect.c, env.c, aux-io.c, mkdir.c, initialize.c,
	cstreams.c, raise.c, tracebak.c, adadecode.c, init.c, raise-gcc.c,
	argv.c, adaint.c, adaint.h, ctrl_c.c, sysdep.c, rtinit.c, cio.c,
	seh_init.c, exit.c, targext.c: Introduce a "STANDALONE" mode where C
	runtime files do not have any dependency on GCC include files.
	Remove unnecessary includes.
	Remove remaining references to VMS in runtime C file.
	* runtime.h: new File.

From-SVN: r273576

This patch removes the builtin expand handling for sha1h/c/m/p and
replaces it with expand patterns. This should make it more consistent
with how we handle intrinsic implementations and cleans up the custom
sha1 code in the arm_expand builtins for unop and ternop.

2019-07-18  Sylvia Taylor  <sylvia.taylor@arm.com>

	* config/arm/arm-builtins.c
	(arm_expand_ternop_builtin): Remove explicit sha1 builtin handling.
	(arm_expand_unop_builtin): Likewise.
	* config/arm/crypto.md
	(crypto_sha1h): Convert from define_insn to define_expand.
	(crypto_<crypto_pattern>): Likewise.
	(crypto_sha1h_lb): New define_insn.
	(crypto_<crypto_pattern>_lb): Likewise.

From-SVN: r273575

This patch fixes:

1) Ice message thrown when using the crypto_sha1h intrinsic due to
incompatible mode used for zero_extend. Removed zero extend as it is
not a good choice for vector modes and using an equivalent single
mode like TI (128bits) instead of V4SI produces extra instructions
making it inefficient.

This affects gcc version 8 and above.

2) Incorrect combine optimizations made due to vec_select usage
in the sha1 patterns on arm. The patterns should only combine
a vec select within a sha1h<op> instruction when the lane is 0.

This affects gcc version 5 and above.

- Fixed by explicitly declaring the valid const int for such
optimizations. For cases when the lane is not 0, the vector
lane selection now occurs in a e.g. vmov instruction prior
to sha1h<op>.

- Updated the sha1h testcases on arm to check for additional
cases with custom vector lane selection.

The intrinsic functions for the sha1 patterns have also been
simplified which seems to eliminate extra vmovs like:
- vmov.i32 q8, #0.


2019-07-18  Sylvia Taylor  <sylvia.taylor@arm.com>

        PR target/90317
        * config/arm/arm_neon.h
        (vsha1h_u32): Refactor.
        (vsha1cq_u32): Likewise.
        (vsha1pq_u32): Likewise.
        (vsha1mq_u32): Likewise.
        * config/arm/crypto.md:
        (crypto_sha1h): Remove zero extend, correct vec select.
        (crypto_sha1c): Correct vec select.
        (crypto_sha1m): Likewise.
        (crypto_sha1p): Likewise.

        * gcc.target/arm/crypto-vsha1cq_u32.c (foo): Change return type to
        uint32_t.
        (GET_LANE, TEST_SHA1C_VEC_SELECT): New.
        * gcc.target/arm/crypto-vsha1h_u32.c (foo): Change return type to
        uint32_t.
        (GET_LANE, TEST_SHA1H_VEC_SELECT): New.
        * gcc.target/arm/crypto-vsha1mq_u32.c (foo): Change return type to
        uint32_t.
        (GET_LANE, TEST_SHA1M_VEC_SELECT): New.
        * gcc.target/arm/crypto-vsha1pq_u32.c (foo): Change return type to
        uint32_t.
        (GET_LANE, TEST_SHA1P_VEC_SELECT): New.

From-SVN: r273574

include/
	* demangle.h (rust_is_mangled): Move to libiberty/rust-demangle.h.
	(rust_demangle_sym): Move to libiberty/rust-demangle.h.
libiberty/
	* cplus-dem.c: Include rust-demangle.h.
	* rust-demangle.c: Include rust-demangle.h.
	* rust-demangle.h: New file.

From-SVN: r273573

Looking through the arm backend I noticed that the modes used to pass
comparison types into subtract-with-carry operations were being
incorrectly set.  The result is that the compiler is not truly
self-consistent.  To clean this up I've introduced a new predicate,
arm_borrow_operation (borrowed from the AArch64 backend) which can
match the comparison type with the required mode and then fixed all
the patterns to use this.  The split patterns that were generating
incorrect modes have all obviously been fixed as well.

The basic rule for the use of a borrow is:
- if the condition code was set by a 'subtract-like' operation (subs, cmp),
  then use CCmode and LTU.
- if the condition code was by unsigned overflow of addition (adds), then
  use CC_Cmode and GEU.

	* config/arm/predicates.md (arm_borrow_operation): New predicate.
	* config/arm/arm.c (subdi3_compare1): Use CCmode for the split.
	(arm_subdi3, subdi_di_zesidi, subdi_di_sesidi): Likewise.
	(subdi_zesidi_zesidi): Likewise.
	(negdi2_compare, negdi2_insn): Likewise.
	(negdi_extensidi): Likewise.
	(negdi_zero_extendsidi): Likewise.
	(arm_cmpdi_insn): Likewise.
	(subsi3_carryin): Use arm_borrow_operation.
	(subsi3_carryin_const): Likewise.
	(subsi3_carryin_const0): Likewise.
	(subsi3_carryin_compare): Likewise.
	(subsi3_carryin_compare_const): Likewise.
	(subsi3_carryin_compare_const0): Likewise.
	(subsi3_carryin_shift): Likewise.
	(rsbsi3_carryin_shift): Likewise.
	(negsi2_carryin_compare): Likewise.

From-SVN: r273572

lto-common.c (gimple_register_canonical_type_1): Do not look for non-ODR conflicts of types in anonymous namespaces.

	* lto-common.c (gimple_register_canonical_type_1): Do not look for
	non-ODR conflicts of types in anonymous namespaces.
	(unify_scc): Do not merge anonymous namespace types.
	* g++.dg/lto/alias-5_0.C: New testcase.
	* g++.dg/lto/alias-5_1.C: New.
	* g++.dg/lto/alias-5_2.c: New.

From-SVN: r273571

        PR tree-optimization/91137
        * tree-ssa-loop-ivopts.c (struct ivopts_data): New field.
        (tree_ssa_iv_optimize_init, alloc_iv, tree_ssa_iv_optimize_finalize):
        Init, use and fini the above new field.
        (determine_base_object_1): New function.
        (determine_base_object): Reimplement using walk_tree.

gcc/testsuite
        PR tree-optimization/91137
        * gcc.c-torture/execute/pr91137.c: New test.

From-SVN: r273570

This change is needed to avoid a regression in gcc.dg/ifcvt-3.c
for a later patch.  Without it, we enter CSE with a dead comparison left
by if-conversion and then eliminate the second (live) comparison in
favour of the dead one.  That's functionally correct in itself, but it
meant that we'd combine the subtraction and comparison into a SUBS
before we have a chance to fold away the subtraction.

2019-07-18  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* basic-block.h (CLEANUP_FORCE_FAST_DCE): New macro.
	* cfgcleanup.c (cleanup_cfg): Call run_fast_dce if
	CLEANUP_FORCE_FAST_DCE is set.
	* ifcvt.c (rest_of_handle_if_conversion): Pass
	CLEANUP_FORCE_FAST_DCE to the final cleanup_cfg call if
	if-conversion succeeded.

From-SVN: r273569

This patch extends the fix for PR53633 to include static functions,
which were giving a bogus -Wreturn-type warning for C but not for C++.

2019-07-18  Richard Sandiford  <richard.sandiford@arm.com>

gcc/c/
	PR c/53633
	* c-decl.c (finish_function): Check targetm.warn_func_return
	before issuing a -Wreturn-type warning.

gcc/testsuite/
	* c-c++-common/pr53633-2.c: New test.

From-SVN: r273568

2019-07-18  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.c (vn_walk_cb_data::push_partial_def): Refactor
	branches to make code less indented.

From-SVN: r273567