This patch splits some cases out of scompare_loc_descriptor and
emit_store_flag, which helps with the upcoming machmode series.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* dwarf2out.c (scompare_loc_descriptor_wide)
	(scompare_loc_descriptor_narrow): New functions, split out from...
	(scompare_loc_descriptor): ...here.
	* expmed.c (emit_store_flag_int): New function, split out from...
	(emit_store_flag): ...here.

From-SVN: r251451

2017-08-30  Richard Biener  <rguenther@suse.de>

	* dwarf2out.c (dwarf2out_finish): Remove setting AT_pubnames.
	(dwarf2out_early_finish): Move setting of AT_pubnames from
	early debug output to early finish.

From-SVN: r251450

	* gcc/config/msp430/msp430.h: Pass -mcode/data-region to the linker
	and -mdata-region to the assembler.

From-SVN: r251449

2017-08-30  Richard Biener  <rguenther@suse.de>

	* dwarf2out.c (add_dwarf_attr): Check we don't add duplicate
	attributes.
	(gen_subprogram_die): Add DW_AT_object_pointer only early.
	(dwarf2out_early_global_decl): Only generate a DIE for the
	abstract origin if it doesn't already exist or is a declaration DIE.
	(resolve_addr): Do not add the linkage name twice when
	generating a stub DIE for the DW_TAG_GNU_call_site target.

	* g++.dg/pr78112-2.C: Do not expect duplicate DW_AT_object_pointer.

From-SVN: r251448

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
	Use machine_mode rather than int for arg1_mode.

From-SVN: r251447

From-SVN: r251444

    
    Reviewed-on: https://go-review.googlesource.com/59913

From-SVN: r251440

    
    Reviewed-on: https://go-review.googlesource.com/59912

From-SVN: r251439

	* semantics.c (finish_id_expression): Remove special dependent case.
	Avoid some later pieces when dependent.
	(finish_qualified_id_expr): Do normal BASELINK handling in a
	template.  Always build a SCOPE_REF for a destructor BIT_NOT_EXPR.
	(parsing_default_capturing_generic_lambda_in_template): Remove.
	* parser.c (cp_parser_postfix_dot_deref_expression): Always give an
	error for types that will never be complete.
	* mangle.c (write_expression): Add sanity check.
	* tree.c (build_qualified_name): Add sanity check.
	(cp_walk_subtrees): Walk into the class context of a BASELINK.
	* lambda.c (add_capture): Improve diagnostic for generic lambda
	capture failure.
	* call.c (build_new_method_call_1): Print the right constructor
	name.

From-SVN: r251438

    
    Reviewed-on: https://go-review.googlesource.com/59911

From-SVN: r251436

    
    Reviewed-on: https://go-review.googlesource.com/59910

From-SVN: r251435

From-SVN: r251434

	* cp-tree.h (LAMBDA_FUNCTION_P): Check DECL_DECLARES_FUNCTION_P.
	* decl.c (start_preparsed_function): Call start_lambda_scope.
	(finish_function): Call finish_lambda_scope.
	* init.c (get_nsdmi): Call start/finish_lambda_scope.
	* lambda.c (start_lambda_scope): Only ignore VAR_DECL in a function.
	* parser.c (cp_parser_function_definition_after_declarator): Don't
	call start/finish_lambda_scope.
	* pt.c (retrieve_specialization): Ignore lambda functions in
	templates.
	(find_parameter_packs_r): Ignore capture proxies.  Look into
	lambdas.
	(check_for_bare_parameter_packs): Allow bare packs in lambdas.
	(tsubst_default_argument): Call start/finish_lambda_scope.
	(tsubst_function_decl): Handle lambda functions differently.
	(tsubst_template_decl): Likewise.
	(tsubst_expr) [DECL_EXPR]: Skip closure declarations and capture
	proxies.
	(tsubst_lambda_expr): Create a new closure rather than instantiate
	the one from the template.
	(tsubst_copy_and_build): Don't register a specialization of a pack.
	(regenerate_decl_from_template): Call start/finish_lambda_scope.
	(instantiate_decl): Remove special lambda function handling.
	* semantics.c (process_outer_var_ref): Remove special generic lambda
	handling.  Don't implicitly capture in a lambda in a template.  Look
	for an existing proxy.
	* class.c (current_nonlambda_class_type): Use decl_type_context.

From-SVN: r251433

re PR target/82015 (PowerPC should check if 2nd argument to __builtin_unpackv1ti and similar functions is 0 or 1)

[gcc]
2017-08-29  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/82015
	* config/rs6000/rs6000.c (rs6000_expand_binop_builtin): Insure
	that the second argument of the built-in functions to unpack
	128-bit scalar types to 64-bit values is 0 or 1.  Change to use a
	switch statement instead a lot of if statements.
	* config/rs6000/rs6000.md (unpack<mode>, FMOVE128_VSX iterator):
	Allow 64-bit values to be in Altivec registers as well as
	traditional floating point registers.
	(pack<mode>, FMOVE128_VSX iterator): Likewise.

[gcc/testsuite]
2017-08-29  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/82015
	* gcc.target/powerpc/pr82015.c: New test.

From-SVN: r251432

	* g++.dg/cpp1y/lambda-generic-const5.C: New.

From-SVN: r251431

	* cp-tree.h (LAMBDA_EXPR_CLOSURE): Use TREE_TYPE.
	(LAMBDA_EXPR_RETURN_TYPE): Remove.
	(struct tree_lambda_expr): Remove closure and return_type fields.
	* lambda.c (build_lambda_expr): Don't set LAMBDA_EXPR_RETURN_TYPE.
	* pt.c (tsubst_copy_and_build): Likewise.
	* parser.c (cp_parser_lambda_declarator_opt): Track return type.
	(cp_parser_lambda_body): Adjust unspecified return type check.
	* ptree.c (cxx_print_lambda_node): Don't print closure or
	return type.

From-SVN: r251430

	* decl.c (check_for_uninitialized_const_var): Check
	is_instantiation_of_constexpr.
	* constexpr.c (ensure_literal_type_for_constexpr_object): Check
	is_instantiation_of_constexpr.
	(potential_constant_expression_1): Check var_in_maybe_constexpr_fn.

From-SVN: r251429

	* lambda.c (build_lambda_object): Check for error_mark_node.
	* pt.c (make_pack_expansion): Set PACK_EXPANSION_LOCAL_P on the type
	pack as well.
	(tsubst_decl) [FUNCTION_DECL]: Set DECL_CONTEXT on the parameters.
	(tsubst) [TEMPLATE_PARM_INDEX]: Check for error_mark_node.

From-SVN: r251428

	* call.c (convert_like_real): Call build_user_type_conversion_1 if
	cand is null.
	(add_conv_candidate): Build a ck_user conversion with no candidate.

From-SVN: r251427

	* method.c (synthesized_method_base_walk): Replace an inherited
	template with its specialization.
	(synthesized_method_walk): Make inheriting_ctor a pointer.
	(maybe_explain_implicit_delete, explain_implicit_non_constexpr)
	(deduce_inheriting_ctor, implicitly_declare_fn): Adjust.

From-SVN: r251426

	* pt.c (build_deduction_guide): Set DECL_ABSTRACT_ORIGIN on the
	template, not the function.
	(template_guide_p): Adjust.

From-SVN: r251425

	* cp-tree.h (enum lss_policy): New.
	(local_specialization_stack): Add policy parameter to default ctor.
	* pt.c (local_specialization_stack): Copy local_specializations if
	lss_copy.

From-SVN: r251424

	* constexpr.c (potential_constant_expression_1): Add "now" parm.
	(is_constant_expression, require_constant_expression): New.
	(is_static_init_expression, is_nondependent_constant_expression)
	(is_nondependent_static_init_expression): Drop "potential".
	* except.c (build_must_not_throw_expr): Do type conversion on
	value-dependent argument.
	* pt.c, semantics.c, typeck2.c: Use variants without "potential".

From-SVN: r251423

	* init.c (get_nsdmi): Remember NSDMI instantiations.
	* parser.c (inject_this_parameter): Be more picky about
	current_class_ptr.
	* pt.c (tsubst_copy): Simplify 'this' handling.
	(tsubst_default_argument): Remember default argument
	instantiations.  Take parameter number.
	(tsubst_default_arguments): Pass it.
	* call.c (convert_default_arg): Likewise.

From-SVN: r251422

	* call.c (build_over_call): Check convert_default_arg result for
	error_mark_node.
	* parser.c (cp_parser_late_parsing_default_args): Remember
	error_mark_node.

From-SVN: r251421

    
    Reviewed-on: https://go-review.googlesource.com/57550

From-SVN: r251420

	* gcc.target/i386/*.c: Remove excess braces from target selectors.

From-SVN: r251419

	* ira-costs.c (record_address_regs): Handle both operands of PLUS for
	MAX_REGS_PER_ADDRESS == 1.

From-SVN: r251418

	* gcc.target/i386/20030926-1.c: Add dg-additional-options.
	* gcc.target/i386/abi-2.c: Ditto.
	* gcc.target/i386/interrupt-sibcall-2.c: Ditto.
	* gcc.target/i386/pr22076.c: Ditto.
	* gcc.target/i386/pr37216.c: Ditto.
	* gcc.target/i386/pr39431.c: Ditto.
	* gcc.target/i386/pr40906-1.c: Ditto.
	* gcc.target/i386/pr40906-2.c: Ditto.
	* gcc.target/i386/pr43766.c: Ditto.
	* gcc.target/i386/pr46226.c: Ditto.
	* gcc.target/i386/pr46470.c: Ditto.
	* gcc.target/i386/pr59929.c: Ditto.
	* gcc.target/i386/sse-10.c: Ditto.
	* gcc.target/i386/vararg-1.c: Ditto.
	* gcc.target/i386/vararg-1.c: Ditto.
	* gcc.target/i386/asm-6.c: Compile for fpic target only.
	* gcc.target/i386/pr44223.c: Ditto.
	* gcc.target/i386/bitfield1.c (dg-options): Remove target selector.
	* gcc.target/i386/bitfield2.c (dg-options): Ditto.
	* gcc.target/i386/pr67480.c (dg-options): Ditto.
	* gcc.target/i386/vect-cond-1.c (dg-options): Ditto.
	* gcc.target/i386/bittest.c (scan-assembler-times): Ditto.
	* gcc.target/i386/darwin-fpmath.c (dg-do): Simplify target selector.
	* gcc.target/i386/mvc9.c: Compile for lto target only.
	* gcc.target/i386/pr45234.c: Compile for ia32 target only.
	* gcc.target/i386/pr49866.c: Compile for lp64 target only.
	* gcc.target/i386/pr57091.c: Ditto.
	* gcc.target/i386/pr61599-2.c: Ditto.

From-SVN: r251417

	* config/i386/i386.opt (flag_fentry): Do not init to -1.
	* config/i386/i386.c (ix86_option_override_internal): Simplify
	setting of opts->x_flag_entry.

From-SVN: r251416

[gcc]

2017-08-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
	    Jakub Jelinek  <jakub@redhat.com>
	    Richard Biener  <rguenther@suse.de>

	PR tree-optimization/81503
	* gimple-ssa-strength-reduction.c (replace_mult_candidate): Ensure
	folded constant fits in the target type; reorder tests for clarity.

[gcc/testsuite]

2017-08-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/81503
	* gcc.c-torture/execute/pr81503.c: New file.


Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
Co-Authored-By: Richard Biener <rguenther@suse.de>

From-SVN: r251414

2017-08-29  Martin Liska  <mliska@suse.cz>

	* passes.def: Include pass_lower_switch.
	* stmt.c (dump_case_nodes): Remove and move to
	tree-switch-conversion.
	(case_values_threshold): Likewise.
	(expand_switch_as_decision_tree_p): Likewise.
	(emit_case_decision_tree): Likewise.
	(expand_case): Likewise.
	(balance_case_nodes): Likewise.
	(node_has_low_bound): Likewise.
	(node_has_high_bound): Likewise.
	(node_is_bounded): Likewise.
	(emit_case_nodes): Likewise.
	(struct simple_case_node): New struct.
	(add_case_node): Remove.
	(emit_case_dispatch_table): Use vector instead of case_list.
	(reset_out_edges_aux): Remove.
	(compute_cases_per_edge): Likewise.
	(expand_case): Build list of simple_case_node.
	(expand_sjlj_dispatch_table): Use it.
	* tree-switch-conversion.c (struct case_node): Moved from
	stmt.c and adjusted.
	(emit_case_nodes): Likewise.
	(node_has_low_bound): Likewise.
	(node_has_high_bound): Likewise.
	(node_is_bounded): Likewise.
	(case_values_threshold): Likewise.
	(reset_out_edges_aux): Likewise.
	(compute_cases_per_edge): Likewise.
	(add_case_node): Likewise.
	(dump_case_nodes): Likewise.
	(balance_case_nodes): Likewise.
	(expand_switch_as_decision_tree_p): Likewise.
	(emit_jump): Likewise.
	(emit_case_decision_tree): Likewise.
	(try_switch_expansion): Likewise.
	(do_jump_if_equal): Likewise.
	(emit_cmp_and_jump_insns): Likewise.
	(fix_phi_operands_for_edge): New function.
	(record_phi_operand_mapping): Likewise.
	(class pass_lower_switch): New pass.
	(pass_lower_switch::execute): New function.
	(make_pass_lower_switch): Likewise.
	(conditional_probability):
	* timevar.def: Add TV_TREE_SWITCH_LOWERING.
	* tree-pass.h: Add make_pass_lower_switch.
2017-08-29  Martin Liska  <mliska@suse.cz>

	* gcc.dg/tree-prof/update-loopch.c: Scan patterns in
	switchlower.
	* gcc.dg/tree-ssa/vrp104.c: Likewise.

From-SVN: r251412

	PR target/80993
	* gcc/config/msp430/msp430.c (msp430_attr): Mark interrupt
	handlers as used.

From-SVN: r251410

dwarf2out.c (add_dwarf_attr): When checking is enabled verify we do not add a DW_AT_inline attribute twice.

2017-08-29  Richard Biener  <rguenther@suse.de>

	* dwarf2out.c (add_dwarf_attr): When checking is enabled verify
	we do not add a DW_AT_inline attribute twice.
	(gen_subprogram_die): Remove code setting DW_AT_inline on
	DECL_ABSTRACT_P nodes.

From-SVN: r251409

2017-08-29  Martin Liska  <mliska@suse.cz>

	PR other/39851
	* gcc-interface/trans.c (Pragma_to_gnu): Set argument to NULL.

From-SVN: r251406

This patch sets the nothrow flag for various calls to internal functions
that are not inherently NOTHROW (and so can't be declared that way in
internal-fn.def) but that are used in contexts that can guarantee
NOTHROWness.

2017-08-29  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* gimplify.c (gimplify_call_expr): Copy the nothrow flag to
	calls to internal functions.
	(gimplify_modify_expr): Likewise.
	* tree-call-cdce.c (use_internal_fn): Likewise.
	* tree-ssa-math-opts.c (pass_cse_reciprocals::execute): Likewise.
	(convert_to_divmod): Set the nothrow flag.
	* tree-if-conv.c (predicate_mem_writes):  Likewise.
	* tree-vect-stmts.c (vectorizable_mask_load_store): Likewise.
	(vectorizable_call): Likewise.
	(vectorizable_store): Likewise.
	(vectorizable_load): Likewise.
	* tree-vect-patterns.c (vect_recog_pow_pattern): Likewise.
	(vect_recog_mask_conversion_pattern): Likewise.

From-SVN: r251401

2017-08-29  Martin Liska  <mliska@suse.cz>

	PR other/39851
	* gcc.c (driver_handle_option): Add new argument.
	* opts-common.c (handle_option): Pass
	target_option_override_hook.
	* opts-global.c (lang_handle_option): Add new option.
	(set_default_handlers):  Add new argument.
	(decode_options): Likewise.
	* opts.c (target_handle_option): Likewise.
	(common_handle_option): Call target_option_override_hook.
	* opts.h (struct cl_option_handler_func): Add hook for
	target option override.
	(struct cl_option_handlers): Likewise.
	(set_default_handlers): Add new argument.
	(decode_options): Likewise.
	(common_handle_option): Likewise.
	(target_handle_option): Likewise.
	* toplev.c (toplev::main): Pass targetm.target_option.override
	hook.
2017-08-29  Martin Liska  <mliska@suse.cz>

	PR other/39851
	* c-common.c (parse_optimize_options): Add argument to function
	call.
	* c-pragma.c (handle_pragma_diagnostic): Likewise.

From-SVN: r251400

2017-08-29  Richard Biener  <rguenther@suse.de>
	Dominik Infuehr <dominik.infuehr@theobroma-systems.com>

	* tree-vect-slp.c (vect_bb_slp_scalar_cost): Properly confine
	life to the active subtree.

	* gcc.dg/vect/costmodel/x86_64/costmodel-vect-slp.c: New testcase.

Co-Authored-By: Dominik Infuehr <dominik.infuehr@theobroma-systems.com>

From-SVN: r251398

	* tree-ssa-dom.c (edge_info::record_simple_equiv): Call
	derive_equivalences.
	(derive_equivalences_from_bit_ior, record_temporary_equivalences):
	Code moved into....
	(edge_info::derive_equivalences): New private member function

	* gcc.dg/torture/pr57214.c: Fix type of loop counter.
	* gcc.dg/tree-ssa/ssa-sink-16.c: Disable DOM.
	* gcc.dg/tree-ssa/ssa-dom-thread-11.c: New test.
	* gcc.dg/tree-ssa/ssa-dom-thread-12.c: New test.
	* gcc.dg/tree-ssa/ssa-dom-thread-13.c: New test.
	* gcc.dg/tree-ssa/ssa-dom-thread-14.c: New test.
	* gcc.dg/tree-ssa/ssa-dom-thread-15.c: New test.
	* gcc.dg/tree-ssa/ssa-dom-thread-16.c: New test.
	* gcc.dg/tree-ssa/ssa-dom-thread-17.c: New test.

From-SVN: r251397

	* tree-ssa-dom.c (class edge_info): Changed from a struct
	to a class.  Add ctor/dtor, methods and data members.
	(edge_info::edge_info): Renamed from allocate_edge_info.
	Initialize additional members.
	(edge_info::~edge_info): New.
	(free_dom_edge_info): Delete the edge info.
	(record_edge_info): Use new class & associated member functions.
	Tighten forms for testing for edge equivalences.
	(record_temporary_equivalences): Iterate over the simple
	equivalences rather than assuming there's only one per edge.
	(cprop_into_successor_phis): Iterate over the simple
	equivalences rather than assuming there's only one per edge.
	(optimize_stmt): Use operand_equal_p rather than pointer
	equality for mini-DSE code.

From-SVN: r251396