PR c/82679
	* c-decl.c (grokdeclarator): Check declspecs insted of atomicp.

	* gcc.dg/c11-atomic-5.c: New test.

From-SVN: r255577

	PR rtl-optimization/83363
	PR rtl-optimization/83364
	* gcc.dg/pr83363.c: New test.
	* gcc.dg/pr83364.c: New test.

From-SVN: r255576

	PR tree-optimization/83359
	* tree-cfg.h (fold_loop_internal_call): Declare.
	* tree-vectorizer.c (fold_loop_internal_call): Moved to ...
	* tree-cfg.c (fold_loop_internal_call): ... here.  No longer static.
	(find_loop_dist_alias): New function.
	(move_sese_region_to_fn): If any dloop->orig_loop_num value is
	updated, also adjust any corresponding LOOP_DIST_ALIAS internal
	calls.

	* gcc.dg/graphite/pr83359.c: New test.

From-SVN: r255575

	PR tree-optimization/80631
	* tree-vect-loop.c (get_initial_def_for_reduction): Fix comment typo.
	(vect_create_epilog_for_reduction): Add INDUC_VAL and INDUC_CODE
	arguments, for INTEGER_INDUC_COND_REDUCTION use INDUC_VAL instead of
	hardcoding zero as the value if COND_EXPR is never true.  For
	INTEGER_INDUC_COND_REDUCTION don't emit the final COND_EXPR if
	INDUC_VAL is equal to INITIAL_DEF, and use INDUC_CODE instead of
	hardcoding MAX_EXPR as the reduction operation.
	(is_nonwrapping_integer_induction): Allow negative step.
	(vectorizable_reduction): Compute INDUC_VAL and INDUC_CODE for
	vect_create_epilog_for_reduction, if no value is suitable, don't
	use INTEGER_INDUC_COND_REDUCTION for now.  Formatting fixes.

	* gcc.dg/vect/pr80631-1.c: New test.
	* gcc.dg/vect/pr80631-2.c: New test.
	* gcc.dg/vect/pr65947-13.c: Expect integer induc cond reduction
	vectorization.

From-SVN: r255574

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

	PR tree-optimization/81889
	* tree-ssa-loop-niter.c (infer_loop_bounds_from_signedness): Use
	range info from the non-wrapping IV instead of just the range
	of the type.

	* gfortran.dg/pr81889.f90: New testcase.
	* gcc.dg/tree-ssa/pr64183.c: Adjust.

From-SVN: r255573

gcc/
	* config.gcc: Add vaesintrin.h.
	* config/i386/i386-builtin-types.def (V64QI_FTYPE_V64QI_V64QI): New type.
	* config/i386/i386-builtin.def (__builtin_ia32_vaesdec_v16qi,
	__builtin_ia32_vaesdec_v32qi, __builtin_ia32_vaesdec_v64qi): New builtins.
	* config/i386/i386.c (ix86_expand_args_builtin): Handle new type.
	* config/i386/immintrin.h: Include vaesintrin.h.
	* config/i386/sse.md (vaesdec_<mode>): New pattern.
	* config/i386/vaesintrin.h (_mm256_aesdec_epi128, _mm512_aesdec_epi128,
	_mm_aesdec_epi128): New intrinsics.

gcc/testsuite/
	* gcc.target/i386/avx512-check.h: Handle bit_VAES.
	* gcc.target/i386/avx512f-aesdec-2.c: New test.
	* gcc.target/i386/avx512fvl-vaes-1.c: Ditto.
	* gcc.target/i386/avx512vl-aesdec-2.c: Ditto.
	* gcc.target/i386/i386.exp (check_effective_target_avx512vaes): New.

From-SVN: r255572

gcc/
	* common/config/i386/i386-common.c (OPTION_MASK_ISA_VAES_SET,
	OPTION_MASK_ISA_VAES_UNSET): New.
	(ix86_handle_option): Handle -mvaes.
	* config/i386/cpuid.h: Define bit_VAES.
	* config/i386/driver-i386.c (host_detect_local_cpu): Detect -mvaes.
	* config/i386/i386-c.c (__VAES__): New.
	* config/i386/i386.c (ix86_target_string): Add -mvaes.
	(ix86_valid_target_attribute_inner_p): Ditto.
	* config/i386/i386.h (TARGET_VAES, TARGET_VAES_P): New.
	* config/i386/i386.opt: Add -mvaes.
	* doc/invoke.texi: Ditto.

From-SVN: r255571

The inline_entry hook will be given a definition in a later patch.

for  gcc/ChangeLog

	* debug.h (gcc_debug_hooks): Add inline_entry.
	* dbxout.c (dbx_debug_hooks, xcoff_debug_hooks): Likewise.
	* debug.c (do_nothing_debug_hooks): Likewise.
	* vmsdbgout.c (vmsdbg_debug_hooks): Likewise.
	* dwarf2out.c (dwarf2_debug_hooks): Likewise.
	(dwarf2_lineno_debug_hooks): Likewise.

From-SVN: r255570

Introduce a command line option to enable statement frontiers, enabled
by default in optimized builds with DWARF2+ debug information.

This patch depends on an earlier patch that completed the
infrastructure for debug markers, and on another patch that turns -g
into a negatable option prefix.

for  gcc/ChangeLog

	* common.opt (gstatement-frontiers): New, setting
	debug_nonbind_markers_p.
	* rtl.h (MAY_HAVE_DEBUG_MARKER_INSNS): Activate.
	* toplev.c (process_options): Autodetect value for debug statement
	frontiers option.
	* tree.h (MAY_HAVE_DEBUG_MARKER_STMTS): Activate.
	* doc/invoke.texi (gstatement-frontiers, gno-statement-frontiers): New.

From-SVN: r255569

This patch completes the infrastructure for the introduction of
statement frontiers in C-family languages.

It brings in all the code remaining code needed to introduce and
transform begin stmt trees, gimple stmts, insns and notes, and
ultimately use them to generate the is_stmt column in DWARF2+ line
number tables/programs, however none of it is activated: the option
that would do so will be introduced in a subsequent patch.

This patch depends on an earlier patch with not-quite-boilerplate
changes towards SFN.

for  gcc/c-family/ChangeLog

	* c-semantics.c (pop_stmt_list): Move begin stmt marker into
	subsequent statement list.

for  gcc/c/ChangeLog

	* c-objc-common.h (LANG_HOOKS_EMITS_BEGIN_STMT): Redefine as true.
	* c-parser.c (add_debug_begin_stmt): New.
	(c_parser_declaration_or_fndef): Call it.
	(c_parser_compound_statement_nostart): Likewise.
	(c_parser_statement_after_labels): Likewise.
	* c-typeck (c_finish_stmt_expr): Skip begin stmts markers.

for  gcc/cp/ChangeLog

	* constexpr.c (check_constexpr_ctor_body_1): Skip begin stmt
	markers.
	(constexpr_fn_retval): Likewise.
	(potential_constant_expression_1): Likewise.
	(cxx_eval_statement_list): Check that a begin stmt marker is
	not used as the value of a statement list.
	(cxx_eval_constant_expression): Return begin stmt markers
	unchanged.
	* cp-array-notation.c (stmt_location): New.
	(cp_expand_cond_array_notations): Use it.
	* cp-objcp-common.h (LANG_HOOKS_EMITS_BEGIN_STMT): Redefine as true.
	* parser.c (add_debug_begin_stmt): New.
	(cp_parser_statement): Call it.
	* pt.c (tsubst_copy): Handle begin stmt markers.

for  gcc/ChangeLog

	* cfgexpand.c (expand_gimple_basic_block): Handle begin stmt
	markers.  Integrate source bind into debug stmt expand loop.
	(pass_expand::execute): Check debug marker limit.  Avoid deep
	TER and expand debug locations for debug bind insns only.
	* cse.c (insn_live_p): Keep nonbind markers and debug bindings
	followed by them.
	* df-scan.c (df_insn_delete): Accept out-of-block debug insn.
	* final.c (reemit_insn_block_notes): Take current block from
	nonbind markers.  Declare note where it's first set.
	(final_scan_insn): Handle begin stmt notes.  Emit is_stmt according to
	begin stmt markers if enabled.
	(notice_source_line): Handle nonbind markers.  Fail if their
	location is unknown or that of builtins.
	(rest_of_handle_final): Convert begin stmt markers to notes if
	var-tracking didn't run.
	(rest_of_clean_state): Skip begin stmt markers.
	* gimple-pretty-print.c (dump_gimple_debug): Handle begin stmt
	markers.
	* function.c (allocate_struct_function): Set begin_stmt_markers.
	* function.h (struct function): Add debug_marker_count counter
	and debug_nonbind_markers flag.
	* gimple-iterator.c (gsi_remove): Adjust debug_marker_count.
	* gimple-low.c (lower_function_body): Adjust
	debug_nonbind_markers.
	(lower_stmt): Drop or skip gimple debug stmts.
	(lower_try_catch): Skip debug stmts.
	* gimple.c (gimple_build_debug_begin_stmt): New.
	(gimple_copy): Increment debug_marker_count if copying one.
	* gimple.h (gimple_build_debug_begin_stmt): Declare.
	* gimplify.c (rexpr_location): New.
	(rexpr_has_location): New.
	(warn_switch_unreachable_r): Handle gimple debug stmts.
	(shortcut_cond_r): Call expr_location.
	(find_goto): New.
	(find_goto_label): New.
	(shortcut_cond_expr): Call expr_has_location, expr_location, and
	find_goto_label.
	(gimplify_cond_expr): Call find_goto_label, expr_has_location, and
	expr_location.
	(gimplify_expr): Handle begin stmt markers.  Reject debug expr decls.
	* langhooks-def.h (LANG_HOOKS_EMITS_BEGIN_STMT): New.  Add to...
	(LANG_HOOKS_INITIALIZER): ... this.
	* langhooks.h (struct lang_hooks): Add emits_begin_stmt.
	* lra-contraints.c (inherit_reload_reg): Tolerate between-blocks
	debug insns.
	(update_ebb_live_info): Skip debug insn markers.
	* lra.c (debug_insn_static_data): Rename to...
	(debug_bind_static_data): ... this.
	(debug_marker_static_data): New.
	(lra_set_insn_recog_data): Select one of the above depending
	on debug insn kind.
	(lra_update_isn_regno_info): Don't assume debug insns have
	freqs.
	(push_insns): Skip debug insns.
	* lto-streamer-in.c (input_function): Drop debug stmts
	depending on active options.  Adjust debug_nonbind_markers.
	* params.def (PARAM_MAX_DEBUG_MARKER_COUNT): New.
	* print-rtl.c (rtx_writer::print_rtx_operand_code_0): Handle
	begin stmt marker notes.
	(print_insn): Likewise.
	* recog.c (extract_insn): Recognize rtl for debug markers.
	* rtl.def (DEBUG_MARKER): New.
	* tree-inline.c: Include params.h.
	(remap_gimple_stmt): Handle nonbind markers.
	(maybe_move_debug_stmts_to_successors): Likewise.
	(copy_debug_stmt): Likewise.
	* tree-iterator.c (append_to_statement_list_1): Append begin stmt
	markers regardless of no side effects.
	(tsi_link_before): Don't update container's side effects when adding
	a begin stmt marker.
	(tsi_link_after): Likewise.
	(expr_first): Skip begin stmt markers.
	(expr_last): Likewise.
	* tree-pretty-print (dump_generic_node): Handle begin stmt markers.
	* tree-ssa-threadedge.c (propagate_threaded_block_debug_info):
	Disregard nonbind markers.
	* tree.c (make_node_stat): Don't set side effects for begin stmt
	markers.
	(build1_stat): Likewise.
	* tree.def (DEBUG_BEGIN_STMT): New.
	* tree.h (GOTO_DESTINATION): Require a GOTO_EXPR.
	* var-tracking.c (delete_debug_insns): Renamed to...
	(delete_vta_debug_insns): ... this.
	(reemit_marker_as_note): New.
	(vt_initialize): Reemit markers.
	(delete_vta_debug_insns): Likewise.
	(vt_debug_insns_local): Reemit or delete markers.
	(variable_tracking_main_1): Likewise.
	* doc/generic.texi (DEBUG_BEGIN_STMT): Document.
	* doc/gimple.texi (gimple_debug_begin_stmt_p): New.
	(gimple_debug_nonbind_marker_p): New.
	(gimple_build_debug_bind): Adjust.
	(gimple_build_debug_begin_stmt): New.
	* doc/invoke.texi (max-debug-marker-count): New param.
	* doc/rtl.texi (debug_implicit_ptr, entry_value): New.
	(debug_parameter_ref, debug_marker): New.
	(NOTE_INSN_BEGIN_STMT): New.
	(DEBUG_INSN): Describe begin stmt markers.

From-SVN: r255568

If find_bb_boundaries is given a block with zero or one nondebug insn
beside debug insns, it shouldn't purge dead edges, because without
debug insns we wouldn't purge them at that point.  Doing so may change
the order in which edges are processed, and ultimately lead to
different transformations to the CFG and then to different
optimizations.

We shouldn't, however, retain debug insns after control flow insns, so
if we find debug insns after a single insn that happens to be a
control flow insn, do the debug insn cleanups, but still refrain from
purging dead edges at that point.


for  gcc/ChangeLog

	* cfgbuild.c (find_bb_boundaries): Don't purge dead edges if,
	without debug insns, we wouldn't, but clean up debug insns
	after a control flow insn nevertheless.

From-SVN: r255567

This patch adjusts numerous parts of the compiler that would
malfunction should they find debug markers at points where they may be
introduced.  The changes purport to allow the compiler to pass
bootstrap-debug-lean (-fcompare-debug in stage3) at various
optimization levels, as well as bootstrap-debug-lib (-fcompare-debug
for target libraries), even after the compiler is changed so that
debug markers are introduced in code streams at spots where earlier
debug stmts, insns and notes wouldn't normally appear.

This patch depends on an earlier SFN boilerplate patch, and on another
SFN patch that introduces new RTL insn-walking functions.

for  gcc/ChangeLog

	* cfgcleanup.c (delete_unreachable_blocks): Use alternate
	block removal order if MAY_HAVE_DEBUG_BIND_INSNS.
	* cfgexpand.c (label_rtx_for_bb): Skip debug insns.
	* cfgrtl.c (try_redirect_by_replacing_jump): Skip debug insns.
	(rtl_tidy_fallthru_edge): Likewise.
	(rtl_verify_fallthru): Likewise.
	(rtl_verify_bb_layout): Likewise.
	(skip_insns_after_block): Likewise.
	(duplicate_insn_chain): Use DEBUG_BIND_INSN_P.
	* dwarf2out.c: Include print-rtl.h.
	(dwarf2out_next_real_insn): New.
	(dwarf2out_var_location): Call it.  Disregard begin stmt markers.
	Dump debug binds in asm comments.
	* gimple-iterator.c (gimple_find_edge_insert_loc): Skip debug stmts.
	* gimple-iterator.h (gsi_start_bb_nondebug): Remove; adjust
	callers to use gsi_start_nondebug_bb instead.
	(gsi_after_labels): Skip gimple debug stmts.
	(gsi_start_nondebug): New.
	* gimple-loop-interchange.c (find_deps_in_bb_for_stmt): Adjust.
	(proper_loop_form_for_interchange): Adjust.
	* gimple-low.c (gimple_seq_may_fallthru): Take last nondebug stmt.
	* gimple.h (gimple_seq_last_nondebug_stmt): New.
	* gimplify.c (last_stmt_in_scope): Skip debug stmts.
	(collect_fallthrough_labels): Likewise.
	(should_warn_for_implicit_fallthrough): Likewise.
	(warn_implicit_fallthrough_r): Likewise.
	(expand_FALLTHROUGH_r): Likewise.
	* graphite-isl-ast-to-gimple.c (gsi_insert_earliest): Adjust.
	(graphite_copy_stmts_from_block): Skip nonbind markers.
	* haifa-sched.c (sched_extend_bb): Skip debug insns.
	* ipa-icf-gimple.c (func_checker::compare_bb): Adjust.
	* jump.c (clean_barriers): Skip debug insns.
	* omp-expand.c (expand_parallel_call): Skip debug insns.
	(expand_task_call): Likewise.
	(remove_exit_barrier): Likewise.
	(expand_omp_taskreg): Likewise.
	(expand_omp_for_init_counts): Likewise.
	(expand_omp_for_generic): Likewise.
	(expand_omp_for_static_nochunk): Likewise.
	(expand_omp_for_static_chunk): Likewise.
	(expand_omp_simd): Likewise.
	(expand_omp_taskloop_for_outer): Likewise.
	(expand_omp_taskloop_for_inner): Likewise.
	(expand_oacc_for): Likewise.
	(expand_omp_sections): Likewise.
	(expand_omp_single): Likewise.
	(expand_omp_synch): Likewise.
	(expand_omp_atomic_load): Likewise.
	(expand_omp_atomic_store): Likewise.
	(expand_omp_atomic_fetch_op): Likewise.
	(expand_omp_atomic_pipeline): Likewise.
	(expand_omp_atomic_mutex): Likewise.
	(expand_omp_target): Likewise.
	(grid_expand_omp_for_loop): Likewise.
	(grid_expand_target_grid_body): Likewise.
	(build_omp_regions_1): Likewise.
	* omp-low.c (check_combined_parallel): Skip debug stmts.
	* postreload.c (fixup_debug_insns): Skip nonbind debug insns.
	* regcprop.c (find_oldest_value_reg): Ensure REGNO is not a pseudo.
	* sese.c (sese_trivially_empty_bb_p): Call is_gimple_debug in
	test.
	* tree-cfg.c (make_blobs_1): Skip debug stmts.
	(make_edges): Likewise.
	(cleanup_dead_labels): Likewise.
	(gimple_can_merge_blocks_p): Likewise.
	(stmt_starts_bb_p): Likewise.
	(gimple_block_label): Likewise.
	(gimple_redirect_edge_and_branch): Likewise.
	* tree-cfgcleanup.c (remove_forwarder_block): Rearrange skipping
	of debug stmts.
	(execute_cleanup_cfg_post_optimizing): Dump enumerated decls with
	TDF_SLIM.
	* tree-pretty-print (print_declaration): Omit initializer in slim
	dumps.
	* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Mark begin stmt
	markers.
	(eliminate_unnecessary_stmts): Stabilize block removal order.
	* tree-ssa-tail-merge.c (find_duplicate): Skip debug stmts.
	* var-tracking.c (get_first_insn): New.
	(vt_emit_notes): Call it.
	(vt_initialize): Walk any insns before the first BB.
	(delete_debug_insns): Likewise.

From-SVN: r255566

This patch introduces a number of new macros and functions that will
be used to distinguish between different kinds of debug stmts, insns
and notes, namely, preexisting debug bind ones and to-be-introduced
nonbind markers.

In a seemingly mechanical way, it adjusts several uses of the macros
and functions, so that they refer to narrower categories when
appropriate.

These changes, by themselves, should not have any visible effect in
the compiler behavior, since the upcoming debug markers are never
created with this patch alone.

for  gcc/ChangeLog

	* gimple.h (enum gimple_debug_subcode): Add
	GIMPLE_DEBUG_BEGIN_STMT.
	(gimple_debug_begin_stmt_p): New.
	(gimple_debug_nonbind_marker_p): New.
	* tree.h (MAY_HAVE_DEBUG_MARKER_STMTS): New.
	(MAY_HAVE_DEBUG_BIND_STMTS): Renamed from....
	(MAY_HAVE_DEBUG_STMTS): ... this.  Check both.
	* insn-notes.def (BEGIN_STMT): New.
	* rtl.h (MAY_HAVE_DEBUG_MARKER_INSNS): New.
	(MAY_HAVE_DEBUG_BIND_INSNS): Renamed from....
	(MAY_HAVE_DEBUG_INSNS): ... this.  Check both.
	(NOTE_MARKER_LOCATION, NOTE_MARKER_P): New.
	(DEBUG_BIND_INSN_P, DEBUG_MARKER_INSN_P): New.
	(INSN_DEBUG_MARKER_KIND): New.
	(GEN_RTX_DEBUG_MARKER_BEGIN_STMT_PAT): New.
	(INSN_VAR_LOCATION): Check for VAR_LOCATION.
	(INSN_VAR_LOCATION_PTR): New.
	* cfgexpand.c (expand_debug_locations): Handle debug bind insns
	only.
	(expand_gimple_basic_block): Likewise.  Emit debug temps for TER
	deps only if debug bind insns are enabled.
	(pass_expand::execute): Avoid deep TER and expand
	debug locations for debug bind insns only.
	* cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Narrow
	debug stmts special handling down to debug bind stmts.
	* combine.c (try_combine): Narrow debug insns special handling
	down to debug bind insns.
	* cse.c (delete_trivially_dead_insns): Handle debug bindings.
	Narrow debug insns preexisting special handling down to debug
	bind insns.
	* dce.c (rest_of_handle_ud_dce): Narrow debug insns special
	handling down to debug bind insns.
	* function.c (instantiate_virtual_regs): Skip debug markers,
	adjust handling of debug binds.
	* gimple-ssa-backprop.c (backprop::prepare_change): Try debug
	temp insertion iff MAY_HAVE_DEBUG_BIND_STMTS.
	* haifa-sched.c (schedule_insn): Narrow special handling of debug
	insns to debug bind insns.
	* ipa-param-manipulation.c (ipa_modify_call_arguments): Narrow
	special handling of debug stmts to debug bind stmts.
	* ipa-split.c (split_function): Likewise.
	* ira.c (combine_and_move_insns): Adjust debug bind insns only.
	* loop-unroll.c (apply_opt_in_copies): Adjust tests on bind
	debug insns.
	* reg-stack.c (convert_regs_1): Use DEBUG_BIND_INSN_P.
	* regrename.c (build_def_use): Likewise.
	* regcprop.c (copyprop_hardreg_forward_1): Likewise.
	(pass_cprop_hardreg): Narrow special casing of debug insns to
	debug bind insns.
	* regstat.c (regstat_init_n_sets_and_refs): Likewise.
	* reload1.c (reload): Likewise.
	* sese.c (sese_insert_phis_for_liveouts): Narrow special
	casing of debug stmts to debug bind stmts.
	* shrink-wrap.c (move_insn_for_shrink_wrap): Likewise.
	* ssa-iterators.h (num_imm_uses): Likewise.
	* tree-cfg.c (gimple_merge_blocks): Narrow special casing of
	debug stmts to debug bind stmts.
	* tree-inline.c	(tree_function_versioning): Narrow special casing
	of debug stmts to debug bind stmts.
	* tree-loop-distribution.c (generate_loops_for_partition):
	Narrow special casing of debug stmts to debug bind stmts.
	* tree-sra.c (analyze_access_subtree): Narrow special casing
	of debug stmts to debug bind stmts.
	* tree-ssa-dce.c (remove_dead_stmt): Narrow special casing of debug
	stmts to debug bind stmts.
	* tree-ssa-loop-ivopt.c (remove_unused_ivs): Narrow special
	casing of debug stmts to debug bind stmts.
	* tree-ssa-reassoc.c (reassoc_remove_stmt): Likewise.
	* tree-ssa-tail-merge.c (tail_merge_optimize): Narrow special
	casing of debug stmts to debug bind stmts.
	* tree-ssa-threadedge.c (propagate_threaded_block_debug_info):
	Likewise.
	* tree-ssa.c (flush_pending_stmts): Narrow special casing of
	debug stmts to debug bind stmts.
	(gimple_replace_ssa_lhs): Likewise.
	(insert_debug_temp_for_var_def): Likewise.
	(insert_debug_temps_for_defs): Likewise.
	(reset_debug_uses): Likewise.
	* tree-ssanames.c (release_ssa_name_fn): Likewise.
	* tree-vect-loop-manip.c (adjust_debug_stmts_now): Likewise.
	(adjust_debug_stmts): Likewise.
	(adjust_phi_and_debug_stmts): Likewise.
	(vect_do_peeling): Likewise.
	* tree-vect-loop.c (vect_transform_loop): Likewise.
	* valtrack.c (propagate_for_debug): Use BIND_DEBUG_INSN_P.
	* var-tracking.c (adjust_mems): Narrow special casing of debug
	insns to debug bind insns.
	(dv_onepart_p, dataflow_set_clar_at_call, use_type): Likewise.
	(compute_bb_dataflow, vt_find_locations): Likewise.
	(vt_expand_loc, emit_notes_for_changes): Likewise.
	(vt_init_cfa_base): Likewise.
	(vt_emit_notes): Likewise.
	(vt_initialize): Likewise.
	(vt_finalize): Likewise.

From-SVN: r255565

This patch removes unused RTL functions, introduces alternate ones for
use in a later SFN patch, and regroups other related functions so that
they appear in a more consistent order.

for  gcc/ChangeLog

	* emit-rtl.c (next_nondebug_insn, prev_nondebug_insn): Reorder.
	(next_nonnote_nondebug_insn, prev_nonnote_nondebug_insn): Reorder.
	(next_nonnote_nondebug_insn_bb): New.
	(prev_nonnote_nondebug_insn_bb): New.
	(prev_nonnote_insn_bb, next_nonnote_insn_bb): Remove.
	* rtl.h	(prev_nonnote_insn_bb, next_nonnote_insn_bb): Remove decls.
	(prev_nonnote_nondebug_insn_bb): Declare.
	(next_nonnote_nondebug_insn_bb): Declare.
	* cfgbuild.c (find_bb_boundaries): Adjust to skip debug insns.
	* cfgrtl.c (get_last_bb_insn): Likewise.
	* lra.c (push_insns): Likewise.

From-SVN: r255564

This patch adds selftest coverage for the fix for PR c/82050.

The selftest iterates over various "interesting" column and line-width
values to try to shake out bugs in the fix-it printing routines, a kind
of "torture" selftest.

Unfortunately this selftest is noticably slower than the other selftests;
adding it to diagnostic-show-locus.c led to:
  -fself-test: 40218 pass(es) in 0.172000 seconds
slowing down to:
  -fself-test: 97315 pass(es) in 6.109000 seconds
for an unoptimized build (e.g. when hacking with --disable-bootstrap).

Given that this affects the compile-edit-test cycle of the "gcc"
subdirectory, this felt like an unacceptable amount of overhead to add.

I attempted to optimize the test by reducing the amount of coverage, but
the test seems useful, and there seems to be a valid role for "torture"
selftests.

Hence this patch adds a:
  gcc.dg/plugin/expensive_selftests_plugin.c
with the responsibility for running "expensive" selftests, and adds the
expensive test there.  The patch moves a small amount of code from
selftest::run_tests into a helper class so that the plugin can print
a useful summary line (to reassure us that the tests are actually being
run).

With that, the compile-edit-test cycle of the "gcc" subdir is unaffected;
the plugin takes:
  expensive_selftests_plugin: 26641 pass(es) in 3.127000 seconds
which seems reasonable within the much longer time taken by "make check"
(I optimized some of the overhead away, hence the reduction from 6 seconds
above down to 3 seconds).

gcc/ChangeLog:
	PR c/82050
	* selftest-run-tests.c (selftest::run_tests): Move start/finish code
	to...
	* selftest.c (selftest::test_runner::test_runner): New ctor.
	(selftest::test_runner::~test_runner): New dtor.
	* selftest.h (class selftest::test_runner): New class.

gcc/testsuite/ChangeLog:
	PR c/82050
	* gcc.dg/plugin/expensive-selftests-1.c: New file.
	* gcc.dg/plugin/expensive_selftests_plugin.c: New file.
	* gcc.dg/plugin/plugin.exp (plugin_test_list): Add the above.

From-SVN: r255563

From-SVN: r255562

gcc/testsuite/
	* gcc.dg/pr83361.c: Add -Wno-div-by-zero to dg-options.

From-SVN: r255559

From-SVN: r255558

PR c/81544 - attribute noreturn and warn_unused_result on the same function
accepted 

Add tests missed in r255469.

From-SVN: r255557

gcc/testsuite/ChangeLog:

2017-12-07  Carl Love  <cel@us.ibm.com>

	* gcc.target/powerpc/altivec-12.c (main):  Add tests for vec_avg.
	* gcc.target/powerpc/builtins-1.c: Renamed builtins-1.h.
	* gcc.target/powerpc/builtins-1.h: Add tests for vec_and,
	vec_andc, vec_cpsgn, vec_mergeh,vec_mergel, vec_nor, vec_or,
	vec_sel, vec_xor, vec_all_eq, vec_all_ge, vec_all_gt, vec_all_le,
	vec_all_lt, vec_all_ne,	vec_any_eq,vec_any_ge, vec_any_gt,vec_any_le,
	vec_any_lt, vec_any_ne, vec_cntlz, vec_round, vec_rsqrt, vec_rsqrte,
	vec_splat, vec_div, vec_mul,vec_ctf, vec_cts, vec_ctu.
	* gcc.target/powerpc/builtins-1-be.c: New file, big endian
	test file for tests in builtins-1.h.
	* gcc.target/powerpc/builtins-1-le.c: New file, little endian
	test file for tests in builtins-1.h.
	* gcc.target/powerpc/builtins-2.c (main): Add tests for vec_ctf,
	vec_cts, vec_ctu.
	* gcc.target/powerpc/builtins-3-runnable.c (test_result_sp): Fix printf
	conversion character.
 	* gcc.target/powerpc/fold-vec-minmax-char.c (test1_min, test2_min,
	test4_min, test1_max, test2_max): Add tests for vec_max and vec_min.
 	* gcc.target/powerpc/fold-vec-minmax-int.c (test4_min, test5_min,
	test7_min, test8_min): Add tests for vec_min.
 	* gcc.target/powerpc/fold-vec-minmax-longlong.c (test7_max, test8_max,
	test9_max, test10_max): Add tests for and vec_max.
 	* gcc.target/powerpc/fold-vec-minmax-short.c (test4_min, test5_min,
	tes7_min, test8_min): Add tests for and vec_min.
 	* gcc.target/powerpc/p8vector-builtin-8.c (foo): Add test for vec_adds,
	vec_subs, vec_sum2s, vec_sum4s.
 	* gcc.target/powerpc/vsx-splats-p8.c: New file to test vec_splats.
	* gcc.target/vsx-vector-5.c (arg1_tests_d, arg1_tests_d): Add
	tests for vec_ceil, vec_floor, vec_nearbyint, vec_sqrt.
	* gcc.target/vsx-vector-7.c (foo): Add tests for vec_sel.
	* gcc.target/vsx-vector-abss.c: New file to test vec_abss.

From-SVN: r255556

gcc/ChangeLog:

2017-12-11  Carl Love  <cel@us.ibm.com>

	* config/rs6000/altivec.h (vec_extract_fp32_from_shorth,
	vec_extract_fp32_from_shortl]): Add #defines.
	* config/rs6000/rs6000-builtin.def (VSLDOI_2DI): Add macro expansion.
	* config/rs6000/rs6000-c.c (ALTIVEC_BUILTIN_VEC_UNPACKH,
	ALTIVEC_BUILTIN_VEC_UNPACKL, ALTIVEC_BUILTIN_VEC_AND,
	ALTIVEC_BUILTIN_VEC_SLD, ALTIVEC_BUILTIN_VEC_SRL,
	ALTIVEC_BUILTIN_VEC_SRO, ALTIVEC_BUILTIN_VEC_SLD,
	ALTIVEC_BUILTIN_VEC_SLL): Add expansions.
	* doc/extend.texi: Add documentation for the added builtins.

gcc/testsuite/ChangeLog:

2017-12-11  Carl Love  <cel@us.ibm.com>
	* gcc.target/powerpc/altivec-7.c: Renamed altivec-7.h.
	* gcc.target/powerpc/altivec-7.h (main): Add testcases for vec_unpackl.
	Add dg-final tests for the instructions generated.
	* gcc.target/powerpc/altivec-7-be.c: New file to test on big endian.
	* gcc.target/powerpc/altivec-7-le.c: New file to test on little endian.
	* gcc.target/powerpc/altivec-13.c (foo): Add vec_sld, vec_srl,
	 vec_sro testcases. Add dg-final tests for the instructions generated.
	* gcc.target/powerpc/builtins-3-p8.c (test_vsi_packs_vui,
	test_vsi_packs_vsi, test_vsi_packs_vssi, test_vsi_packs_vusi,
	test_vsi_packsu-vssi, test_vsi_packsu-vusi, test_vsi_packsu-vsll,
	test_vsi_packsu-vull, test_vsi_packsu-vsi, test_vsi_packsu-vui): Add
	testcases. Add dg-final tests for new instructions.
	* gcc.target/powerpc/p8vector-builtin-2.c (vbschar_eq, vbchar_eq,
	vuchar_eq, vbint_eq, vsint_eq, viint_eq, vuint_eq, vbool_eq, vbint_ne,
	vsint_ne, vuint_ne, vbool_ne, vsign_ne, vuns_ne, vbshort_ne): Add
	tests.
	Add dg-final instruction tests.
	* gcc.target/powerpc/vsx-vector-6.c: Renamed vsx-vector-6.h.
	* gcc.target/powerpc/vsx-vector-6.h (vec_andc,vec_nmsub, vec_nmadd,
	vec_or, vec_nor, vec_andc, vec_or, vec_andc, vec_msums): Add tests.
	Add dg-final tests for the generated instructions.
	* gcc.target/powerpc/builtins-3.c (test_sll_vsc_vsc_vsuc,
	test_sll_vuc_vuc, test_sll_vsi_vsi_vuc, test_sll_vui_vui_vuc,
	test_sll_vbll_vull, test_sll_vbll_vbll_vus, test_sll_vp_vp_vuc,
	test_sll_vssi_vssi_vuc, test_sll_vusi_vusi_vuc, test_slo_vsc_vsc_vsc,
	test_slo_vuc_vuc_vsc, test_slo_vsi_vsi_vsc, test_slo_vsi_vsi_vuc,
	test_slo_vui_vui_vsc, test_slo_vui_vui_vuc, test_slo_vsll_slo_vsll_vsc,
	test_slo_vsll_slo_vsll_vuc, test_slo_vull_slo_vull_vsc,
	test_slo_vull_slo_vull_vuc, test_slo_vp_vp_vsc, test_slo_vp_vp_vuc,
	test_slo_vssi_vssi_vsc, test_slo_vssi_vssi_vuc, test_slo_vusi_vusi_vsc,
	test_slo_vusi_vusi_vuc, test_slo_vusi_vusi_vuc, test_slo_vf_vf_vsc,
	test_slo_vf_vf_vuc, test_cmpb_float): Add tests.

From-SVN: r255555

When combine drops a REG_UNUSED SET in a parallel, we have to clear
cached values, so that, even if the REGs remain used (e.g. because
they were referenced in the used SET_SRC), we will not use properties
of the dropped modified value as if they applied to the preserved
original one.

We fail to adjust REG_N_SETS.

for  gcc/ChangeLog

	PR rtl-optimization/80693
	PR rtl-optimization/81019
	PR rtl-optimization/81020
	* combine.c (distribute_notes): Reset any REG_UNUSED REGs that
	are not mentioned in i3.  Place the REG_UNUSED note on i2,
	possibly modified to REG_DEAD, if it did not originate in i3.

for  gcc/testsuite/ChangeLog

	PR rtl-optimization/80693
	PR rtl-optimization/81019
	PR rtl-optimization/81020
	* gcc.dg/pr80693.c: New.
	* gcc.dg/pr81019.c: New.

From-SVN: r255554

	* recog.c (store_data_bypass_p_1): New function.
	(store_data_bypass_p): Handle USE in a PARALLEL like CLOBBER.  Use
	store_data_bypass_p_1 to avoid code duplication.  Formatting fixes.

From-SVN: r255553

After converting a conditional branch to an unconditional trap to a
conditional trap, if the original trap is still reachable from another
path, it may be that it is in a hot basic block  and only reachable from
cold blocks.  Fix that up.


	PR rtl-optimization/83361
	* ifcvt.c (if_convert): Call fixup_partitions.

gcc/testsuite/
	PR rtl-optimization/83361
	* gcc.dg/pr83361.c: New testcase.

From-SVN: r255550

[gcc]

2017-12-11  Will Schmidt  <will_schmidt@vnet.ibm.com>

	* config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add support for
	early folding of splat_u{8,16,32}.

[testsuite]

2017-12-11  Will Schmidt  <will_schmidt@vnet.ibm.com>

	* gcc.target/powerpc/fold-vec-splat-misc-invalid.c: New.

From-SVN: r255549

2017-12-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* intrinsic.texi (MAXLOC): Update documentation for
	character arrays and KIND argument.
	(MINLOC): Likewise.

From-SVN: r255546

aarch64.c (aarch64_print_operand): Don't start output_operand_lossage first argument with capital letter.

	* config/aarch64/aarch64.c (aarch64_print_operand): Don't start
	output_operand_lossage first argument with capital letter.
	(aarch64_override_options): Don't start error and sorry first argument
	with capital letter.

From-SVN: r255544

2017-12-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/83379
	* gfortran.dg/minval_char_1.f90: Correct logic for mask
	calculation.
	* gfortran.dg/minval_char_2.f90: Likewise.
	* gfortran.dg/maxval_char_1.f90: Likewise.
	* gfortran.dg/maxval_char_2.f90: Likewise.

From-SVN: r255543

2017-12-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/45689
	* simplify.c (min_max_choose): Add prototype.
	(gfc_count): Format correctly.
	(simplify_transformation): Pass array argument to init_result_expr.
	(gfc_simplify_minval_maxval): Remove.
	(gfc_min): New function.
	(gfc_simplify_minval): Call simplify_transformation.
	(gfc_max): New function.
	(gfc_simplify_maxval): Call simplify_transformation.

2017-12-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/45689
	* gfortran.dg/minval_parameter_1.f90: New test.
	* gfortran.dg/maxval_parameter_1.f90: New test.

From-SVN: r255542

g++.dg/bprob* is failing currently with autofdo.

Running in gdb shows that there is a very deep recursion in get_index_by_decl until it
overflows the stack.

gcc/:
2017-12-11  Andi Kleen  <ak@linux.intel.com>

	PR gcov-profile/83355
	* auto-profile.c (string_table::get_index_by_decl): Don't
	recurse when abstract origin points to itself.

From-SVN: r255540

re PR tree-optimization/83320 (Mismatched free() / delete / delete []  in gimple-loop-interchange.cc:948)

	PR tree-optimization/83320
	* gimple-loop-interchange.cc (free_data_refs_with_aux): Use delete.
	(prune_datarefs_not_in_loop): Ditto.

From-SVN: r255539

From-SVN: r255537

From-SVN: r255534

	* ChangeLog: Fix whitespace.
	* testsuite/ChangeLog: Ditto.

From-SVN: r255533

2017-12-10  Dominique d'Humieres  <dominiq@lps.ens.fr>

	PR fortran/53478
	* gfortran.h (gfc_find_case_gsymbol): New prototype.
	* symbol.c (gfc_find_case_gsymbol): New procedure, case
	insensistive version of gfc_find_gsymbol.
	* resolve.c (resolve_common_blocks): Use it.
	Replace %s with %qs where needed.

	* gfortran.dg/binding_label_tests_4.f03: Update dg-error.
	* gfortran.dg/binding_label_tests_6.f03: Likewise.
	* gfortran.dg/binding_label_tests_7.f03: Likewise.
	* gfortran.dg/binding_label_tests_8.f03: Likewise.
	* gfortran.dg/binding_label_tests_10_main.f03: Likewise.
	* gfortran.dg/binding_label_tests_11_main.f03: Likewise.
	* gfortran.dg/binding_label_tests_13_main.f03: Likewise.
	* gfortran.dg/test_common_binding_labels_3_main.f03: Likewise.
	* gfortran.dg/binding_label_tests_29.f90: New test.

From-SVN: r255530

From-SVN: r255529

re PR tree-optimization/83337 (ICE at -O3 x86_64-linux-gnu: in interpret_rhs_expr, at tree-scalar-evolution.c:1775)

	PR tree-optimization/83337
	* gimple-loop-interchange.cc (compute_access_stride): Handle bitfield DRs
	properly.

	* gcc.dg/tree-ssa/loop-interchange-14.c: New test.
	* gcc.dg/tree-ssa/loop-interchange-15.c: New test.

From-SVN: r255528

From-SVN: r255527

2017-12-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/82934
	PR fortran/83318
	* match.c (gfc_match_allocate): Enforce F2008:C631.

2017-12-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/82934
	PR fortran/83318
	* gfortran.dg/allocate_assumed_charlen_2.f90: new test.

From-SVN: r255524

	PR tree-optimization/83338
	* tree-vect-stmts.c (vectorizable_operation): Handle POINTER_DIFF_EXPR
	vectorization as MINUS_EXPR with a subsequent VIEW_CONVERT_EXPR from
	vector of unsigned integers to vector of signed integers.

	* gcc.dg/vect/pr83338.c: New test.

From-SVN: r255523