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gcc/
* alloc-pool.c, asan.c, auto-inc-dec.c, basic-block.h, bb-reorder.c,
bitmap.c, bitmap.h, bt-load.c, builtins.c, calls.c, cfgcleanup.c,
cfgexpand.c, cfghooks.c, cfgloop.c, cfgloopmanip.c, cfgrtl.c, cgraph.c,
cgraph.h, cgraphbuild.c, cgraphclones.c, cgraphunit.c, collect2.c,
combine-stack-adj.c, combine.c, compare-elim.c, context.c, context.h,
cprop.c, cse.c, cselib.c, dbxout.c, dce.c, defaults.h, df-core.c,
df-problems.c, df-scan.c, df.h, diagnostic.c, double-int.c, dse.c,
dumpfile.c, dwarf2asm.c, dwarf2cfi.c, dwarf2out.c, emit-rtl.c,
errors.c, except.c, expmed.c, expr.c, file-find.c, final.c,
fixed-value.c, fold-const.c, function.c, fwprop.c, gcc-ar.c, gcc.c,
gcov-io.c, gcov-io.h, gcov.c, gcse.c, genattr-common.c, genattr.c,
genattrtab.c, genautomata.c, genconfig.c, genemit.c, genextract.c,
genflags.c, gengenrtl.c, gengtype-state.c, gengtype.c, genmodes.c,
genopinit.c, genoutput.c, genpeep.c, genpreds.c, genrecog.c,
gensupport.c, ggc-common.c, ggc-page.c, gimple-fold.c, gimple-low.c,
gimple-pretty-print.c, gimple-ssa-strength-reduction.c, gimple.c,
gimple.h, godump.c, graphite-clast-to-gimple.c,
graphite-optimize-isl.c, graphite-poly.h, graphite-sese-to-poly.c,
graphite.c, haifa-sched.c, hash-table.c, hash-table.h, hwint.c,
hwint.h, ifcvt.c, incpath.c, init-regs.c, input.h, intl.c, intl.h,
ipa-cp.c, ipa-devirt.c, ipa-inline-analysis.c, ipa-inline.c,
ipa-profile.c, ipa-pure-const.c, ipa-reference.c, ipa-split.c,
ipa-utils.c, ipa.c, ira-build.c, ira.c, jump.c, loop-doloop.c,
loop-init.c, loop-invariant.c, loop-iv.c, lower-subreg.c, lto-cgraph.c,
lto-streamer-in.c, lto-streamer-out.c, lto-wrapper.c, mcf.c,
mode-switching.c, modulo-sched.c, omp-low.c, optabs.c, opts.c,
pass_manager.h, passes.c, plugin.c, postreload-gcse.c, postreload.c,
predict.c, prefix.c, pretty-print.c, print-rtl.c, print-tree.c,
profile.c, read-md.c, real.c, real.h, recog.c, ree.c, reg-stack.c,
regcprop.c, reginfo.c, regmove.c, regrename.c, regs.h, regstat.c,
reload1.c, reorg.c, rtl.c, rtl.h, rtlanal.c, sbitmap.c, sched-rgn.c,
sdbout.c, sel-sched-ir.c, sel-sched.c, sparseset.c, stack-ptr-mod.c,
statistics.c, stmt.c, stor-layout.c, store-motion.c, streamer-hooks.h,
system.h, target-hooks-macros.h, targhooks.c, targhooks.h, toplev.c,
tracer.c, trans-mem.c, tree-browser.c, tree-call-cdce.c, tree-cfg.c,
tree-cfgcleanup.c, tree-complex.c, tree-data-ref.c, tree-data-ref.h,
tree-eh.c, tree-emutls.c, tree-flow.h, tree-if-conv.c, tree-into-ssa.c,
tree-iterator.c, tree-loop-distribution.c, tree-mudflap.c,
tree-nested.c, tree-nomudflap.c, tree-nrv.c, tree-object-size.c,
tree-optimize.c, tree-pass.h, tree-pretty-print.c, tree-profile.c,
tree-scalar-evolution.c, tree-sra.c, tree-ssa-ccp.c,
tree-ssa-coalesce.c, tree-ssa-copy.c, tree-ssa-copyrename.c,
tree-ssa-dce.c, tree-ssa-dom.c, tree-ssa-dse.c, tree-ssa-forwprop.c,
tree-ssa-ifcombine.c, tree-ssa-live.c, tree-ssa-loop-ch.c,
tree-ssa-loop-im.c, tree-ssa-loop-ivopts.c, tree-ssa-loop-prefetch.c,
tree-ssa-loop.c, tree-ssa-math-opts.c, tree-ssa-operands.c,
tree-ssa-phiopt.c, tree-ssa-phiprop.c, tree-ssa-pre.c,
tree-ssa-reassoc.c, tree-ssa-sink.c, tree-ssa-strlen.c,
tree-ssa-structalias.c, tree-ssa-threadedge.c, tree-ssa-threadupdate.c,
tree-ssa-uncprop.c, tree-ssa-uninit.c, tree-ssa.c, tree-ssanames.c,
tree-stdarg.c, tree-switch-conversion.c, tree-tailcall.c,
tree-vect-data-refs.c, tree-vect-generic.c, tree-vect-loop-manip.c,
tree-vect-stmts.c, tree-vectorizer.c, tree-vectorizer.h, tree-vrp.c,
tree.c, tree.h, tsan.c, tsystem.h, value-prof.c, var-tracking.c,
varasm.c, vec.h, vmsdbgout.c, vtable-verify.c, web.c: Add missing
whitespace before "(".
From-SVN: r203004
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* cgraph.c (cgraph_resolve_speculation): Use semantical equivalency
test.
From-SVN: r202888
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* cgraph.c (cgraph_create_edge_1): Avoid uninitialized read
of speculative flag.
From-SVN: r202740
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2013-09-17 Bernd Edlinger <bernd.edlinger@hotmail.de>
PR ipa/58398
* cgraph.c (cgraph_function_body_availability): Check for ifunc
attribute, and don't inline the resolver in this case.
From-SVN: r202655
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* tree-ssa.h: New. Move content from tree-flow.h and
tree-flow-inline.h.
* tree-flow.h (_edge_var_map, edge_var_map_vector): Move to tree-ssa.h.
Move prototypes belonging to tree-ssa.c.
* tree-flow-inline.h (redirect_edge_var_map_def,
redirect_edge_var_map_result, redirect_edge_var_map_location): Move to
tree-ssa.h.
* gimple.h: Adjust prototypes.
* tree-ssa.c (useless_type_conversion_p, types_compatible_p): Move to...
* gimple.c (useless_type_conversion_p, types_compatible_p): Here.
* tree.h: Move prototype to tree-ssa.h.
* gengtype.c (open_base_files): Replace tree-flow.h with tree-ssa.h.
* Makefile.in: (TREE_SSA_H, TREE_FLOW_H): Adjust dependencies.
* alias.c, asan.c, builtins.c, calls.c, cfgexpand.c, cfghooks.c,
cfgloop.c, cfgloopmanip.c, cgraph.c, cgraphbuild.c, cgraphclones.c,
cgraphunit.c, dse.c, except.c, expr.c, final.c, fold-const.c,
ggc-page.c, gimple-fold.c, gimple-iterator.c, gimple-low.c,
gimple-pretty-print.c, gimple-ssa-strength-reduction.c,
gimple-streamer-in.c, gimple-streamer-out.c, gimple.c, gimplify.c,
graphite-blocking.c, graphite-clast-to-gimple.c, graphite-dependences.c,
graphite-interchange.c, graphite-optimize-isl.c, graphite-poly.c,
graphite-scop-detection.c, graphite-sese-to-poly.c, graphite.c,
ipa-cp.c, ipa-inline-analysis.c, ipa-inline-transform.c, ipa-inline.c,
ipa-prop.c, ipa-pure-const.c, ipa-reference.c, ipa-split.c, ipa-utils.c,
loop-init.c, lto-cgraph.c, lto-section-in.c, lto-section-out.c,
lto-streamer-in.c, lto-streamer-out.c, lto-streamer.c, omp-low.c,
passes.c, predict.c, print-tree.c, profile.c, sese.c, targhooks.c,
tracer.c, trans-mem.c, tree-call-cdce.c, tree-cfg.c, tree-cfgcleanup.c,
tree-chrec.c, tree-complex.c, tree-data-ref.c, tree-dfa.c, tree-eh.c,
tree-emutls.c, tree-if-conv.c, tree-inline.c, tree-into-ssa.c,
tree-loop-distribution.c, tree-mudflap.c, tree-nested.c, tree-nrv.c,
tree-object-size.c, tree-optimize.c, tree-outof-ssa.c, tree-parloops.c,
tree-phinodes.c, tree-predcom.c, tree-pretty-print.c, tree-profile.c,
tree-scalar-evolution.c, tree-sra.c, tree-ssa*.c, tree-stdarg.c,
tree-streamer-in.c, tree-switch-conversion.c, tree-tailcall.c,
tree-vect-data-refs.c, tree-vect-generic.c, tree-vect-loop-manip.c,
tree-vect-loop.c, tree-vect-patterns.c, tree-vect-slp.c,
tree-vect-stmts.c, tree-vectorizer.c, tree-vrp.c, tsan.c,
value-prof.c, var-tracking.c,
varpool.c, vtable-verify.c: Replace tree-flow.h with tree-ssa.h
From-SVN: r202523
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false if that hppens, otherwise return true.
2013-09-05 Martin Jambor <mjambor@suse.cz>
* ipa-prop.c (remove_described_reference): Accept missing references,
return false if that hppens, otherwise return true.
(cgraph_node_for_jfunc): New function.
(try_decrement_rdesc_refcount): Likewise.
(try_make_edge_direct_simple_call): Use them.
(ipa_edge_removal_hook): Remove references from rdescs.
(ipa_edge_duplication_hook): Clone rdescs and their references
when the new edge has the same caller as the old one.
* cgraph.c (cgraph_resolve_speculation): Remove speculative
reference before removing any edges.
testsuite/
* g++.dg/ipa/remref-1.C: New test.
* g++.dg/ipa/remref-2.C: Likewise.
From-SVN: r202281
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* Makefile.in: Add ipa-profile.o
(ipa.o, ipa-devrit.o, ipa-inline-analysis.o): Adjust dependencies.
* cgraph.c (struct cgraph_propagate_frequency_data,
cgraph_propagate_frequency_1, cgraph_propagate_frequency): Move to
ipa-profile.c; replace cgraph_ by ipa_ prefix.
* cgraph.h (cgraph_propagate_frequency): Remove.
* ipa-inline-analysis.c: Include ipa-utils.h; drop duplicated cfgloop.h.
(inline_update_callee_summaries): Update.
* ipa-profile.c: New file.
* ipa-utils.h (ipa_propagate_frequency): Declare.
* ipa.c: Do not include pointer-set.h, hash-table.h, lto-streamer.h,
data-streamer.h, value-prof.h
(symtab_remove_unreachable_nodes): Update profile.
(struct histogram_entry, histogram, histogram_pool, histogram_hash,
account_time_size, cmp_counts, dump_histogram,
ipa_profile_generate_summary, ipa_profile_write_summary,
ipa_profile_read_summary, ipa_profile, gate_ipa_profile,
pass_data_ipa_profile, pass_ipa_profile, make_pass_ipa_profile):
Move to ipa-profile.c
From-SVN: r202154
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* cgraph.c (cgraph_get_body): Update call of lto_input_function_body.
* gimple-streamer-in.c (input_gimple_stmt): Move sanity check to ...
* ipa-utils.c: Include lto-streamer.h, ipa-inline.h
(ipa_merge_profiles): New function.
* lto-streamer-in.c (lto_read_body): Take node instead of fn_decl.
(lto_input_function_body): Likewise.
From-SVN: r202130
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From-SVN: r202129
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* cgraph.c (cgraph_function_body_availability): Handle weakref
correctly.
* passes.def: Remove pass_fixup_cfg.
* ipa-inline.c (ipa_inline): When not optimizing, do not inline;
track when we need to remove functions.
(gate_ipa_inline): Execute inlining always; add comment why.
(pass_data_ipa_inline): Remove TODO_remove_functions.
* ipa-inline-analysis.c (inline_generate_summary): When not optimizing
do not produce summaries.
* symtab.c (change_decl_assembler_name): Handle renaming of weakrefs.
(symtab_nonoverwritable_alias): Assert we are not called on weakref.
* varpool.c (cgraph_variable_initializer_availability): Fix weakrefs,
constant pool and vtable.
From-SVN: r202111
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* lto-symtab.c (lto_cgraph_replace_node): Free decl_in_state.
* cgraph.c (cgraph_release_function_body): Free decl_in_state.
* lto-section-in.c (lto_free_function_in_decl_state): New function.
(lto_free_function_in_decl_state_for_node): New function.
* lto.c (read_cgraph_and_symbols): Remove ggc_collect;
clear section node; add comment why we do not collect.
From-SVN: r202093
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can not be called indirectly when...
* cgraph.c (cgraph_propagate_frequency): Do not assume that virtual
methods can not be called indirectly when their address is not taken.
From-SVN: r202003
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* cgraph.c (cgraph_redirect_edge_call_stmt_to_callee): Fix formatting;
fix edge count/frequency when speculation failed; fix type check
for the direct call.
From-SVN: r201999
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add sanity check.
* cgraph.c (cgraph_speculative_call_info): Fix parameter order and formating;
add sanity check.
(cgraph_resolve_speculation): Add FIXME about scaling profiles.
(cgraph_redirect_edge_call_stmt_to_callee): Fix ICE in debug dump.
* ipa-inline.c (heap_edge_removal_hook): Reset node growth cache.
(resolve_noninline_speculation): Update callee keys, too.
From-SVN: r201996
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* cgraph.c (cgraph_turn_edge_to_speculative):
Fix debug output.
From-SVN: r201977
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address taken.
* cgraph.c (cgraph_turn_edge_to_speculative): Mark target node
as having address taken.
From-SVN: r201948
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fortran/frontend-passes.c with "edge ... has no corresponding call_stmt")
PR bootstrap/58186
* cgraph.c (cgraph_add_edge_to_call_site_hash): Overwrite hash
entry for direct edges.
(cgraph_turn_edge_to_speculative): Fix setting of can_throw_external.
From-SVN: r201891
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* Makeifle-in (ipa-devirt.o): New.
(GTFILES): Add ipa-utils.h and ipa-devirt.c
* cgraphunit.c (decide_is_symbol_needed): Do not care about virtuals.
(analyze_functions): Look into possible targets of polymorphic call.
* dumpfile.c (dump_files): Add type-inheritance dump.
* dumpfile.h (TDI_inheritance): New.
* ipa-devirt.c: New file.
* ipa-utils.h (odr_type_d): Forward declare.
(odr_type): New type.
(build_type_inheritance_graph): Declare.
(possible_polymorphic_call_targets): Declare and introduce inline
variant when only edge is pased.
(dump_possible_polymorphic_call_targets): Likewise.
* timevar.def (TV_IPA_INHERITANCE, TV_IPA_VIRTUAL_CALL): New.
* tree.c (type_in_anonymous_namespace_p): Break out from ...
(types_same_for_odr): ... here.
* tree.h (type_in_anonymous_namespace_p): Declare.
* g++.dg/ipa/type-inheritance-1.C: New testcase.
From-SVN: r201836
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record basic info into indirect_info.
* cgraph.c (cgraph_create_indirect_edge): Discover
polymorphic calls and record basic info into indirect_info.
* gimple-fold.c (gimple_fold_call): When doing BINFO based
devirtualization, ignore objc function calls.
* ipa-cp.c (initialize_node_lattices): Be ready for polymorphic
call with no parm index info.
* ipa-prop.c (ipa_analyze_call_uses): Likewise.
* tree.c (virtual_method_call_p): New function.
* tree.h (virtual_method_call_p): Declare.
From-SVN: r201824
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fix typo in sanity check.
* cgraph.c (cgraph_turn_edge_to_speculative): Return newly
introduced edge; fix typo in sanity check.
(cgraph_resolve_speculation): Export; improve diagnostic.
(cgraph_redirect_edge_call_stmt_to_callee): Better diagnostic; cancel
speculation at type mismatch.
* cgraph.h (cgraph_turn_edge_to_speculative): Update.
(cgraph_resolve_speculation): Declare.
(symtab_can_be_discarded): New function.
* value-prof.c (gimple_ic_transform): Remove actual transform code.
* ipa-inline-transform.c (speculation_removed): New global var.
(clone_inlined_nodes): See if speculation can be removed.
(inline_call): If speculations was removed, we growths may not match.
* ipa-inline.c (can_inline_edge_p): Add DISREGARD_LIMITS parameter.
(speculation_useful_p): New function.
(resolve_noninline_speculation): New function.
(inline_small_functions): Resolve useless speculations.
* ipa-inline.h (speculation_useful_p): Declare
* ipa.c (can_replace_by_local_alias): Simplify.
(ipa_profile): Produce speculative calls in non-lto, too;
add simple cost model; produce local aliases.
From-SVN: r201683
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From-SVN: r201646
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* cgraph.c (cgraph_resolve_speculation): Cut frequency to
CGRAPH_FREQ_MAX.
(dump_cgraph_node): Dump profile-id.
* cgraph.h (cgraph_indirect_call_info): Add common_target_id
and common_target_probability.
* lto-cgraph.c (lto_output_edge): Stream common targets.
(lto_output_node): Stream profile ids.
(input_node): Stream profile ids.
(input_edge): Stream common targets.
* lto-streamer-in.c (fixup_call_stmt_edges_1): Fix formatting.
* ipa.c: Include value-prof.h
(ipa_profile_generate_summary): Turn indirect call statement histograms
into common targets.
(ipa_profile): Turn common targets into speculative edges.
* gcc.dg/tree-prof/crossmodule-indircall-1.c: New testcase.
* gcc.dg/tree-prof/crossmodule-indircall-1a.c: New testcase.
From-SVN: r201639
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* cgraphbuild.c (cgraph_rebuild_references): Rebuild only non-speculative
refs.
* cgraph.c (cgraph_update_edge_in_call_site_hash): New function.
(cgraph_add_edge_to_call_site_hash): Deal with speculative calls.
(cgraph_set_call_stmt): Likewise.
(cgraph_create_edge_1): Fix release checking compilatoin;
clear lto_stmt_uid.
(cgraph_free_edge): Free indirect info.
(cgraph_turn_edge_to_speculative): New function.
(cgraph_speculative_call_info): New function.
(cgraph_make_edge_direct): Return direct edge; handle speculation.
(cgraph_redirect_edge_call_stmt_to_callee): Expand speculative
edges.
(dump_cgraph_node): Dump speculation.
(verify_edge_count_and_frequency): Accept speculative edges.
(verify_edge_corresponds_to_fndecl): Handle partitioned cgraph.
(verify_cgraph_node): Handle speculation.
* cgraph.h (cgraph_edge): Add SPECULATIVE flag.
(cgraph_set_call_stmt): Update prototype.
(cgraph_make_edge_direct): Update prototype.
(cgraph_speculative_call_info): Declare.
* ipa-cp.c (ipcp_discover_new_direct_edges): Be ready for edge
to change; update call of ipa_find_references.
* ipa-ref.c (ipa_record_reference): Fix return value; clear
lto_stmt_uid and speculative flags.
(ipa_dump_references): Dump speculation.
(ipa_clone_references): Clone speculative flag.
(ipa_clone_referring): Likewise.
(ipa_clone_ref): New function.
(ipa_find_reference): Look into lto_stmt_uids
(ipa_clear_stmts_in_references): Do not clear speculative calls.
* ipa-ref.h (ipa_ref): Add lto_stmt_uid and speculative flags.
(ipa_find_reference): Update declaration.
(ipa_clone_ref): Declare.
* lto-cgraph.c (lto_output_edge): Make lto_stmt_uids start from 0;
stream speculative flag.
(lto_output_ref): Stream statements uids and speculation.
(input_ref): Likewise.
(input_edge): Stream speuclation.
* cgraphclones.c (cgraph_clone_edge): Clone speculation.
(cgraph_set_call_stmt_including_clones): Handle speculation.
* ipa-inline.c (heap_edge_removal_hook): New function.
(inline_small_functions): Register it.
* lto-streamer-in.c (fixup_call_stmt_edges_1): Bounds checking;
also initialize refs.
* ipa-prop.c (ipa_make_edge_direct_to_target): Be ready for
edge to change.
(try_make_edge_direct_simple_call): Likewise.
(try_make_edge_direct_simple_call): Likewise.
(update_indirect_edges_after_inlining): Likewise.
(remove_described_reference): Look proper lto_stmt_uid.
(propagate_controlled_uses): Likewise.
(propagate_controlled_uses): Liekwise.
* tree-inline.c (copy_bb): Copy speculative edges.
(redirect_all_calls): New function.
(copy_cfg_body): Do redirection after loop info
is updated.
(delete_unreachable_blocks_update_callgraph): Updadte
speculation.
From-SVN: r201632
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* cgraphbuild.c (build_cgraph_edges): Do not walk into debugs.
(make_pass_rebuild_cgraph_edges): Also clear references.
* cgraph.c (verify_cgraph_node): Add basic ipa-ref verifier.
* ipa-inline-transform.c (inline_transform): Remove all references
after inlining.
* cgraphunit.c (expand_function): Remove all references after expansion.
* ipa-ref.c (ipa_ref_has_aliases_p): Fix formatting.
(ipa_find_reference): Rewrite to iterator.
(remove_stmt_references): Likewise.
(ipa_clear_stmts_in_references): New function.
* ipa-ref.h (ipa_clear_stmts_in_references): Declare.
* cgraphclones.c (cgraph_materialize_all_clones): Remove or clear references.
* ipa-split.c (split_function): Remove references in split function.
From-SVN: r201601
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* cgraph.c (cgraph_get_body): New function based on lto.c
implementation.
* cgraph.h (cgraph_get_body): Declare.
* cgraphclones.c (cgraph_create_virtual_clone): Commonize WPA and LTO paths.
* cgraphunit.c (expand_function): Get body prior expanding.
* ipa.c (function_and_variable_visibility): Use gimple_has_body_p test.
* lto-cgraph.c (lto_output_node): Do not stream bodies we don't really need.
* passes.c (do_per_function_toporder): Get body.
* tree-inline.c (expand_call_inline): Get body prior inlining it.
* tree-ssa-structalias.c (ipa_pta_execute): Get body; skip clones.
* lto.c (lto_materialize_function): Do not read body anymore.
From-SVN: r201537
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i686 with -flto after r199422)
PR lto/57602
* cgraph.c (verify_cgraph_node): Accept local flags from other partitions.
* ipa.c (symtab_remove_unreachable_nodes): Do not clear local flag.
(function_and_variable_visibility): Likewise.
* trans-mem.c (ipa_tm_create_version): TM versions are not local.
From-SVN: r201492
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* cgraph.c (cgraph_function_body_availability): Do not check cgrpah flags.
* cgraph.h (symtab_for_node_and_aliases, symtab_nonoverwritable_alias,
symtab_node_availability): Declare.
* ipa.c (can_replace_by_local_alias): New.
(function_and_variable_visibility): Use it.
* symtab.c (symtab_for_node_and_aliases, symtab_nonoverwritable_alias_1,
symtab_nonoverwritable_alias): New.
Co-Authored-By: Martin Liska <marxin.liska@gmail.com>
From-SVN: r201439
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* cgraph.c (cgraph_release_function_body): Use used_as_abstract_origin.
(cgraph_release_function_body): Likewise.
(cgraph_can_remove_if_no_direct_calls_p): Likewise.
* cgraph.h (cgrpah_node): Rename abstract_and_needed
to used_as_abstract_origin.
* tree-inline-transfrom.c (can_remove_node_now_p_1): Do not remove
symbols used as abstract origins.
* cgraphunit.c (analyze_functions): Update.
* ipa.c (symtab_remove_unreachable_nodes): Recompute used_as_abstract_origin.
* tree-inline.c (tree_function_versioning): Update
used_as_abstract_origin; be ready for DECL_RESULT and DECL_ARGUMENTS to be
NULL.
* lto-symtab.c (lto_symtab_merge_symbols): Merge duplicated nodes for abstract functions.
* cgraph.h (symtab_real_symbol_p): Abstract declarations are not real symbols.
From-SVN: r201408
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* cgraph.c (release_function_body): Break out from ...
(cgraph_release_function_body): ... this one; also release DECL_RESULT
and DECL_ARGUMENTS.
* ipa-cp.c (get_replacement_map): Add parm_num argument; do not set
old_tree in the map.
(create_specialized_node): Update.
* lto-cgraph.c (output_node_opt_summary): Do not translate old_tree
into index.
* cgraphclones.c (cgraph_create_virtual_clone): Do not copy DECL_ARGUMENTS,
DECL_INITIAL and DECL_RESULT.
* ipa-prop.c (ipa_populate_param_decls): Look for origin of clones.
* tree-inline.c (initialize_cfun): Initialize DECL_ARGUMENTS and
DECL_RESULT.
From-SVN: r201251
|
|
* lto-symtab.c (lto_cgraph_replace_node): Release function body.
* cgraph.c (cgraph_remove_node): Do not release function body
when in cgraph streaming.
* ipa.c (process_references, symtab_remove_unreachable_nodes): Objects
in other partitions are not considered reachable; fix handling of clones.
From-SVN: r201242
|
|
2013-06-15 Dehao Chen <dehao@google.com>
* tree-flow.h (gimple_check_call_matching_types): Add new argument.
* gimple-low.c (gimple_check_call_matching_types): Likewise.
(gimple_check_call_args): Likewise.
* value-prof.c (check_ic_target): Likewise.
* ipa-inline.c (early_inliner): Likewise.
* ipa-prop.c (update_indirect_edges_after_inlining): Likewise.
* cgraph.c (cgraph_create_edge_1): Likewise.
(cgraph_make_edge_direct): Likewise.
From-SVN: r200125
|
|
streaming stage.
* cgraph.c (verify_edge_corresponds_to_fndecl): Be lax about
decl has when in streaming stage.
* lto-symtab.c (lto_symtab_merge_symbols): Likewise.
* cgraph.h (cgraph_state): Add CGRAPH_LTO_STREAMING.
* lto.c (read_cgraph_and_symbols): Set cgraph into streaming state.
From-SVN: r200018
|
|
weakref variables.
* c-family/c-common.c (handle_alias_ifunc_attribute): Do not set
DECL_EXTERNAL for weakref variables.
* c-family/c-pragma.c (handle_pragma_weak): Make sure aliases
are not declared as external.
* cgraph.c (cgraph_create_function_alias): Set weakref flag.
* cgraph.h (symtab_node_base): Add weakref flag.
* cgraphunit.c (cgraph_reset_node): Clear weakref flag.
(handle_alias_pairs): Set weakref flag, do not set DECL_EXTERNAL.
(output_weakrefs): Use weakref flag.
* fold-const.c (simple_operand_p): Handle WEAK.
* gimple-fold.c (can_refer_decl_in_current_unit_p): Drop weakref.
* ipa.c (varpool_externally_visible_p): Drop weakref.
(function_and_variable_visibility): Update comment; fix weakref
sanity checks; do not clear DECL_WEAK on them.
* lto-cgraph.c (lto_output_node): update.
(lto_output_varpool_node): Update.
(input_overwrite_node): Update.
(input_node): Update.
(input_varpool_node): Update.
* lto-symtab.c (lto_symtab_symbol_p): Do not special case weakrefs.
(lto_symtab_merge_symbols): Add sanity check.
(lto_symtab_prevailing_decl): Do not special case weakrefs.
* passes.c (rest_of_decl_compilation): Set static flag, too.
* symtab.c (dump_symtab_base): Dump weakref.
(verify_symtab_base): Sanity check weakrefs.
(symtab_make_decl_local): Remove duplicated code.
(symtab_alias_ultimate_target): Simplify.
* varpool.c (varpool_create_variable_alias): Set weakref flag.
* lto-partition.c (get_symbol_class): Simplify weakref handling.
(add_symbol_to_partition_1): Likewise.
(contained_in_symbol): Likewise.
(lto_balanced_map): Likewise.
(rename_statics): Drop weakref.
From-SVN: r199971
|
|
of mark_decl_referenced.
* class.c (emit_register_classes_in_jcr_section): Use DECL_PRESERVE_P
instead of mark_decl_referenced.
* decl2.c (maybe_make_one_only): Use forced_by_abi instad of
mark_decl_referenced.
(mark_needed): Likewise.
* cgraph.c (cgraph_remove_node): Clear forced_by_abi.
(cgraph_node_cannot_be_local_p_1): Honnor symbol.forced_by_abi
and symtab_used_from_object_file_p.
(cgraph_make_node_local_1): Clear forced_by_abi.
(cgraph_can_remove_if_no_direct_calls_and): Use forced_by_abi
* cgraph.h (symtab_node_base): Add forced_by_abi.
(decide_is_variable_needed): Remove.
(varpool_can_remove_if_no_refs): Honnor symbol.forced_by_abi.
* cgraphunit.c (cgraph_decide_is_function_needed): Rename to ..
(decide_is_symbol_needed): ... this one; handle symbols in general;
always analyze virtuals; honnor forced_by_abi.
(cgraph_finalize_function): Update.
(varpool_finalize_decl): Update.
(symbol_defined_and_needed): Remove.
(analyze_functions): Update.
* lto-cgraph.c (lto_output_node, lto_output_varpool_node,
output_refs, input_overwrite_node): Handle forced_by_abi.
* ipa.c (cgraph_address_taken_from_non_vtable_p): Rename to ...
(address_taken_from_non_vtable_p): ... this one.
(comdat_can_be_unshared_p_1): New function.
(cgraph_comdat_can_be_unshared_p): Rename to ...
(comdat_can_be_unshared_p): ... this one; handle symbols in general.
(varpool_externally_visible_p): Use comdat_can_be_unshared_p.
(function_and_variable_visibility): Clear forced_by_abi as needed.
* trans-mem.c (ipa_tm_mark_forced_by_abi_node): New functoin.
(ipa_tm_create_version_alias, ipa_tm_create_version): Update.
* varasm.c (mark_decl_referenced): Remove.
* symtab.c (dump_symtab_base): Dump forced_by_abi.
* varpool.c (decide_is_variable_needed): Remove.
From-SVN: r199695
|
|
* lto-symtab.c (lto_symtab_merge_cgraph_nodes_1): Rename to ...
(lto_symtab_merge_symbols_1): ... this one.
(lto_symtab_merge_cgraph_nodes): Rename to ...
(lto_symtab_merge_symbols): ... this one; simplify.
* cgraph.c (same_body_aliases_done): Rename to ...
(cpp_implicit_aliases_done): ... this one.
(cgraph_create_function_alias): Update.
(cgraph_same_body_alias): Update.
(dump_cgraph_node): Remove alias dumping; simplify
thunk dumping.
(verify_edge_corresponds_to_fndecl): Simplify.
* cgraph.h (symtab_node_base): Add cpp_implicit_alias,
alias_target.
(cgraph_node): Remove same_body_alias.
(varpool_node): Remove alias_of and extra_name_alias.
(same_body_aliases_done): Rename to ..
(cpp_implicit_aliases_done): ... this one.
(symtab_alias_ultimate_target): Add default parameter.
(symtab_resolve_alias): New function.
(fixup_same_cpp_alias_visibility): Declare.
(cgraph_function_node): Add default parameter.
(cgraph_node_asm_name): Likewise.
(cgraph_function_or_thunk_node): Add default parameter; do
not ICE when it is NULL.
(varpool_variable_node): Likewise.
* tree-emutls.c (create_emultls_var): Update.
(ipa_lower_emutls): Update.
* cgraphunit.c (cgraph_decide_is_function_needed): Update.
(cgraph_reset_node): Reset alias info.
(cgraph_finalize_function): Update.
(fixup_same_cpp_alias_visibility): Move to symtab.c.
(analyze_function): Simplify.
(cgraph_process_same_body_aliases): Simplify.
(analyze_functions): Fixup same body aliases.
(handle_alias_pairs): Simplify.
(assemble_thunk): Update.
(assemble_thunks_and_aliases): Update.
(output_weakrefs): Rewrite.
* lto-cgraph.c (lto_output_node): Rewrite alias handling.
(lto_output_varpool_node): Likewise.
(compute_ltrans_boundary): Remve assert.
(get_alias_symbol): New functoin.
(input_node): Rewrite alias handling.
(input_varpool_node): Likewise.
* ipa-pure-const.c (propagate_pure_const): Fix formating.
* ipa.c (process_references): Handle weakrefs correctly.
(symtab_remove_unreachable_nodes): Likewise.
* trans-mem.c (get_cg_data): Update.
(ipa_tm_create_version_alias): Update.
(ipa_tm_execute): Update.
* symtab.c (dump_symtab_base): Dump aliases.
(verify_symtab_base): Verify aliases.
(symtab_node_availability): New function.
(symtab_alias_ultimate_target): Simplify.
(fixup_same_cpp_alias_visibility): Move here from cgraphunit.c;
handle all the fixup cases.
(symtab_resolve_alias): New function.
* passes.c (ipa_write_summaries): Handle weakrefs.
* varpool.c (varpool_analyze_node): Simplify.
(assemble_aliases): Update.
(varpool_create_variable_alias): Simplify.
(varpool_extra_name_alias): Simplify.
* lto-streamer.h (lto_symtab_merge_cgraph_nodes): Rename to...
(lto_symtab_merge_symbols): ... this one.
* decl2.c (cp_write_global_declarations): Replace same_body_alias
by symbol.cpp_implicit_alias.
* lto.c (read_cgraph_and_symbols): Simplify dumping; Replace
lto_symtab_merge_cgraph_nodes by lto_symtab_merge_symbols.
(do_whole_program_analysis): Update dumping.
From-SVN: r199577
|
|
* cgraph.h (symtab_node_base): Add definition, alias and analyzed
flags; reorder rest of fields in more consistent way.
(varpool_node): Remove analyzed, finalized and alias.
(cgraph_ndoe): Likewise.
(symtab_alias_ultimate_target): New function.
(cgraph_function_node): Move offline.
(cgraph_reset_node): Declare.
(cgraph_comdat_can_be_unshared_p): Remove.
(varpool_remove_initializer): Declare.
(varpool_first_defined_variable, varpool_next_defined_variable
cgraph_first_defined_function, cgraph_next_defined_function): Update.
(cgraph_function_with_gimple_body_p): Update.
(varpool_all_refs_explicit_p): Update.
(symtab_alias_target): New function.
(cgraph_alias_aliased_node, varpool_alias_aliased_node): Rename to ...
(cgraph_alias_target, varpool_alias_target): .. this one; simplify.
(cgraph_function_or_thunk_node): Simplify using symtab_alias_ultimate_target.
(varpool_variable_node): Likewise.
* cgraph.c (cgraph_create_function_alias): Update.
(cgraph_add_thunk): Update.
(cgraph_remove_node): Update.
(dump_cgraph_node): Do not dump removed flags.
(cgraph_function_body_availability): Update.
(cgraph_propagate_frequency): Update.
(verify_cgraph_node): Check sanity of local flag.
(cgraph_function_node): Move here from cgraph.h; revamp for
cgraph_function_or_thunk_node.
* lto-symtab.c (lto_varpool_replace_node): Update.
(lto_symtab_resolve_can_prevail_p): Update.
(lto_symtab_merge_cgraph_nodes): Update.
* ipa-cp.c (determine_versionability, initialize_node_lattices,
propagate_constants_accross_call, devirtualization_time_bonus,
ipcp_propagate_stage): Update.
* tree-emutls.c (create_emultls_var, ipa_lower_emutls): Update.
* ipa-inline-transform.c (clone_inlined_nodes, preserve_function_body_p): Update.
* ipa-reference.c (propagate): Update.
(write_node_summary_p): Update.
* toplev.c (wrapup_global_declaration_2): Update.
* cgraphunit.c (cgraph_analyze_function): Rename to ...
(analyze_function) ... this one.
(cgraph_process_new_functions): Update.
(cgraph_reset_node): Export.
(cgraph_finalize_function): Update.
(cgraph_add_new_function): Update.
(process_function_and_variable_attributes): Update.
(varpool_finalize_decl): Update.
(symbol_finalized): Remove.
(symbol_finalized_and_needed): Rename to ...
(symbol_defined_and_needed): ... update.
(cgraph_analyze_functions): Update.
(handle_alias_pairs): Update.
(mark_functions_to_output): Update.
(assemble_thunk): Update.
(output_in_order): Update.
(output_weakrefs): Update.
(finalize_compilation_unit): Update.
* lto-cgraph.c (reachable_from_other_partition_p, lto_output_node,
lto_output_varpool_node, compute_ltrans_boundary, input_overwrite_node,
input_node, input_varpool_node): Update.
* dbxout.c (dbxout_expand_expr): Update.
* cgraphclones.c (cgraph_clone_node): Update.
(cgraph_copy_node_for_versioning): Update.
(cgraph_materialize_clone): Update.
(cgraph_materialize_all_clones): Update.
* ipa-pure-const.c (analyze_function, pure_const_write_summary,
propagate_pure_const, propagate_nothrow): Update.
* lto-streamer-out.c (lto_output, write_symbol): Update.
* ipa-utils.c (ipa_reverse_postorder): Update.
* ipa-inline.c (can_inline_edge_p): Update.
(update_caller_keys, ipa_inline): Update.
* dwarf2out.c (reference_to_unused,
premark_types_used_by_global_vars_helper): Update.
* tree-eh.c (tree_could_trap_p): Update.
* ipa-split.c (consider_split, execute_split_functions): Update.
* ipa.c (cgraph_non_local_node_p_1, cgraph_local_node_p,
has_addr_references_p): Update;
move ahead in file for better readability.
(process_references): Simplify.
(symtab_remove_unreachable_nodes): Update; cleanup way function/var
bodies are removed.
(cgraph_comdat_can_be_unshared_p): Make static.
(cgraph_externally_visible_p): Update.
(varpool_externally_visible_p): Update.
(function_and_variable_visibility): Update.
* trans-mem.c (get_cg_data, ipa_tm_mayenterirr_function,
ipa_tm_mark_force_output_node): Update.
* ipa-inline-analysis.c (dump_inline_summary, initialize_inline_failed,
estimate_edge_devirt_benefit, inline_generate_summary,
inline_write_summary): Update.
* gimple-fold.c (can_refer_decl_in_current_unit_p): Update.
* ipa-prop.c (ipa_compute_jump_functions): Update.
(ipa_print_node_params, ipa_prop_read_section, ipa_update_after_lto_read,
read_replacements_section): Update.
* varasm.c (mark_decl_referenced): Update.
(assemble_alias, dump_tm_clone_pairs): Update.
* tree-inline.c (copy_bb): Update.
(estimate_num_insns, optimize_inline_calls, tree_function_versioning):
Update.
* symtab.c (dump_symtab_base): Print new flags.
(verify_symtab_base): Verify new flags.
(symtab_alias_ultimate_target): New function.
* tree-ssa-structalias.c (get_constraint_for_ssa_var,
create_variable_info_for, associate_varinfo_to_alias, ipa_pta_execute):
Update.
* passes.c (ipa_write_summaries, ipa_write_optimization_summaries): Update.
* i386.c (ix86_get_function_versions_dispatcher,
ix86_generate_version_dispatcher_body): Update.
(fold_builtin_cpu): Use varpool_add_new_variable.
* varpool.c (varpool_remove_initializer): Break out from ...
(varpool_remove_node): ... this one.
(dump_varpool_node, varpool_node_for_asm,
cgraph_variable_initializer_availability, varpool_analyze_node,
varpool_assemble_decl, varpool_remove_unreferenced_decls,
varpool_finalize_named_section_flags, varpool_create_variable_alias): Update
* decl.c (java_mark_decl_local): Update for new symtab flags.
* tree.c (cp_fix_function_decl_p): Update for new symtab flags.
* decl2.c )var_finalized_p, cp_write_global_declarations): Likewise.
* lto.c (has_analyzed_clone_p, lto_materialize_function): Update for new symtab
flags.
* lto-partition.c (get_symbol_class, lto_balanced_map): Likewise.
From-SVN: r199422
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|
2013-05-21 Richard Biener <rguenther@suse.de>
PR tree-optimization/57330
* cgraph.c (cgraph_redirect_edge_call_stmt_to_callee): Properly
preserve the call stmts fntype.
* gcc.dg/torture/pr57330.c: New testcase.
From-SVN: r199139
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|
* lto-symtab.c (lto_symtab_merge_cgraph_nodes): Resolve cross module
weakrefs.
* cgraph.c (dump_cgraph_node): Do not ice on unresolved alias.
* cgraphunit.c (handle_alias_pairs): Store target of unresolved weakrefs.
(output_weakrefs): Update.
From-SVN: r199041
|
|
2013-05-15 Martin Jambor <mjambor@suse.cz>
* ipa-prop.c (ipa_print_node_jump_functions): Print symbol order in
header, print symbol order instead of node uid, print more information
about indirect edge targets.
(ipa_make_edge_direct_to_target): Print symbol order instead of node
uids.
(ipa_make_edge_direct_to_target): Likewise.
(remove_described_reference): Likewise.
(propagate_controlled_uses): Likewise.
(ipa_print_node_params): Also print symbol order.
(ipcp_transform_function): Print symbol order instead of node uids.
* cgraph.c (cgraph_redirect_edge_call_stmt_to_callee): Likewise.
(cgraph_get_create_real_symbol_node): Likewise.
* ipa-cp.c (print_lattice): Likewise.
(print_all_lattices): Likewise.
(determine_versionability): Likewise.
(initialize_node_lattices): Likewise.
(estimate_local_effects): Likewise.
(update_profiling_info): Likewise.
(create_specialized_node): Likewise.
(perhaps_add_new_callers): Likewise.
(decide_about_value): Likewise.
(decide_whether_version_node): Likewise.
(identify_dead_nodes): Likewise.
* ipa-inline-analysis.c (dump_inline_edge_summary): Likewise.
(dump_inline_summary): Likewise.
(estimate_node_size_and_time): Likewise.
(inline_analyze_function): Likewise.
* ipa-inline.c (report_inline_failed_reason): Likewise.
(want_early_inline_function_p): Likewise.
(edge_badness): Likewise.
(update_edge_key): Likewise.
(inline_small_functions): Likewise. Add dumping of order to two other
dumps.
* ipa-pure-const.c (pure_const_read_summary): Print symbol order
instead of node uids.
(propagate_pure_const): Likewise.
(propagate_pure_const): Likewise.
* ipa-utils.c (dump_cgraph_node_set): Likewise.
* lto-cgraph.c (input_node): Explicitly specify we dump uid.
* lto-symtab.c (lto_cgraph_replace_node): Print symbol order instead
of node uids.
* tree-pretty-print.c (dump_function_header): Likewise.
* tree-sra.c (convert_callers_for_node): Dump in traditional format.
Print symbol order instead of node uids.
lto/
* lto-partition.c (lto_balanced_map): Print symbol order instead
of node uids.
From-SVN: r198925
|
|
whole-program)
2013-05-13 Martin Jambor <mjambor@suse.cz>
PR middle-end/42371
* ipa-prop.h (IPA_UNDESCRIBED_USE): New macro.
(ipa_constant_data): New type.
(ipa_jump_func): Use ipa_constant_data to hold information about
constant jump functions.
(ipa_get_jf_constant): Adjust to jump function type changes.
(ipa_get_jf_constant_rdesc): New function.
(ipa_param_descriptor): New field controlled_uses.
(ipa_get_controlled_uses): New function.
(ipa_set_controlled_uses): Likewise.
* ipa-ref.h (ipa_find_reference): Declare.
* ipa-prop.c (ipa_cst_ref_desc): New type.
(ipa_print_node_jump_functions_for_edge): Adjust for jump function type
changes.
(ipa_set_jf_constant): Likewise. Also create reference descriptions.
New parameter cs. Adjust all callers.
(ipa_analyze_params_uses): Detect uncontrolled and controlled uses.
(remove_described_reference): New function.
(jfunc_rdesc_usable): Likewise.
(try_make_edge_direct_simple_call): Decrement controlled use count,
attempt to remove reference if it hits zero.
(combine_controlled_uses_counters): New function.
(propagate_controlled_uses): Likewise.
(ipa_propagate_indirect_call_infos): Call propagate_controlled_uses.
(ipa_edge_duplication_hook): Duplicate reference descriptions.
(ipa_print_node_params): Print described use counter.
(ipa_write_jump_function): Adjust to jump function type changes.
(ipa_read_jump_function): New parameter CS, pass it to
ipa_set_jf_constant. Adjust caller.
(ipa_write_node_info): Stream controlled use count
(ipa_read_node_info): Likewise.
* cgraph.c (cgraph_mark_address_taken_node): Bail out instead of
asserting.
* ipa-cp.c (ipcp_discover_new_direct_edges): Decrement controlled use
count. Remove cloning-added reference if it reaches zero.
* ipa-ref.c (ipa_find_reference): New function.
testsuite/
* gcc.dg/ipa/remref-0.c: New test.
* gcc.dg/ipa/remref-1a.c: Likewise.
* gcc.dg/ipa/remref-1b.c: Likewise.
* gcc.dg/ipa/remref-2a.c: Likewise.
* gcc.dg/ipa/remref-2b.c: Likewise.
From-SVN: r198821
|
|
PR lto/54095
* cgraph.c (cgraph_make_node_local_1): Se unique_name.
* cgraph.h (symtab_node_base): Add unique_name.
* lto-cgraph.c (lto_output_node, lto_output_varpool_node,
input_overwrite_node, input_varpool_node): Stream unique_name.
* cgraphclones.c (cgraph_create_virtual_clone,
cgraph_function_versioning): Set unique_name.
* ipa.c (function_and_variable_visibility): Set unique_name.
From-SVN: r198710
|
|
variable.
* bb-reorder.c (fix_crossing_unconditional_branches): Remove a
set-but-unused variable.
* cgraph.c (cgraph_release_function_body): Clear cfun->cfg to make
basic blocks of released function bodies garbage-collectable.
* ree.c (find_and_remove_re): Do not call df_finish_pass here.
(struct rtl_opt_pass): Add TODO_df_finish.
* rtl.def (DEFINE_SUBST, DEFINE_SUBST_ATTR): Add documentation.
From-SVN: r197533
|
|
* cgraph.h (cgraph_get_create_real_symbol_node): Declare.
* cgraph.c (cgraph_get_create_real_symbol_node): New function.
* cgrpahbuild.c: Use cgraph_get_create_real_symbol_node instead
of cgraph_get_create_node.
* ipa-prop.c (ipa_make_edge_direct_to_target): Likewise.
From-SVN: r196750
|
|
From-SVN: r195098
|
|
From-SVN: r194726
|
|
This patch implements Jakub's idea of adding an empty struct with
a typecast operator that returns nil vectors. This is useful to
shorten all the initializers when declaring vec instances or passing
nil vectors as function arguments.
2012-11-20 Diego Novillo <dnovillo@google.com>
Jakub Jelinek <jakub@redhat.com>
ChangeLog
* vec.h (struct vnull): Declare.
(vNULL): Declare.
* vec.c (vNULL): Define.
* bb-reorder.c: Replace all vec<T, A>() initializers with vNULL.
* cfgexpand.c: Likewise.
* cfgloop.c: Likewise.
* cfgloopanal.c: Likewise.
* cfgloopmanip.c: Likewise.
* cgraph.c: Likewise.
* config/c6x/c6x.c: Likewise.
* config/i386/i386.c: Likewise.
* df-core.c: Likewise.
* dominance.c: Likewise.
* dwarf2out.c: Likewise.
* except.c: Likewise.
* function.c: Likewise.
* gcse.c: Likewise.
* genautomata.c: Likewise.
* graphds.c: Likewise.
* graphite-scop-detection.c: Likewise.
* graphite.c: Likewise.
* haifa-sched.c: Likewise.
* ifcvt.c: Likewise.
* ipa-cp.c: Likewise.
* ipa-inline-analysis.c: Likewise.
* ipa-inline-transform.c: Likewise.
* ipa-inline.c: Likewise.
* ipa-prop.c: Likewise.
* ipa-split.c: Likewise.
* ipa-utils.c: Likewise.
* ira-build.c: Likewise.
* lto-cgraph.c: Likewise.
* lto-streamer-in.c: Likewise.
* lto-symtab.c: Likewise.
* opts-global.c: Likewise.
* passes.c: Likewise.
* ree.c: Likewise.
* sched-deps.c: Likewise.
* sel-sched-ir.c: Likewise.
* sel-sched-ir.h: Likewise.
* sel-sched.c: Likewise.
* stor-layout.c: Likewise.
* trans-mem.c: Likewise.
* tree-call-cdce.c: Likewise.
* tree-cfg.c: Likewise.
* tree-data-ref.c: Likewise.
* tree-diagnostic.c: Likewise.
* tree-eh.c: Likewise.
* tree-loop-distribution.c: Likewise.
* tree-predcom.c: Likewise.
* tree-ssa-loop-im.c: Likewise.
* tree-ssa-loop-ivcanon.c: Likewise.
* tree-ssa-loop-manip.c: Likewise.
* tree-ssa-loop-niter.c: Likewise.
* tree-ssa-loop-prefetch.c: Likewise.
* tree-ssa-math-opts.c: Likewise.
* tree-ssa-phiopt.c: Likewise.
* tree-ssa-pre.c: Likewise.
* tree-ssa-propagate.c: Likewise.
* tree-ssa-reassoc.c: Likewise.
* tree-ssa-sccvn.c: Likewise.
* tree-ssa-structalias.c: Likewise.
* tree-ssa-threadedge.c: Likewise.
* tree-ssa-uninit.c: Likewise.
* tree-stdarg.c: Likewise.
* tree-switch-conversion.c: Likewise.
* tree-vect-data-refs.c: Likewise.
* tree-vect-loop.c: Likewise.
* tree-vect-slp.c: Likewise.
* tree-vect-stmts.c: Likewise.
* value-prof.c: Likewise.
* varasm.c: Likewise.
ada/ChangeLog
* gcc-interface/decl.c: Replace all vec<T,A>()
initializers with vNULL.
cp/ChangeLog
* name-lookup.c: Replace all vec<T, A>() initializers
with vNULL.
* semantics.c: Likewise.
fortran/ChangeLog
* trans-openmp.c: Replace all vec<T, A>() initializers
with vNULL.
lto/ChangeLog
* lto.c: Replace all vec<T, A>() initializers with vNULL.
objc/ChangeLog
* objc-act.c: Replace all vec<T, A>() initializers with vNULL.
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r193677
|
|
on the template class 'vec'.
This patch rewrites the old VEC macro-based interface into a new one
based on the template class 'vec'. The user-visible changes are
described in http://gcc.gnu.org/wiki/cxx-conversion/cxx-vec.
I have tested the patch pretty extensively:
- Regular bootstraps on x86_64, ppc, ia64, sparc and hppa.
- Bootstraps with --enable-checking=release
- Bootstraps with --enable-checking=gc,gcac
- Basic builds on all targets (using contrib/config-list.mk).
We no longer access the vectors via VEC_* macros. The pattern is
"VEC_operation (T, A, V, args)" becomes "V.operation (args)".
The only thing I could not do is create proper ctors and dtors for the
vec class. Since these vectors are stored in unions, we
have to keep them as PODs (C++03 does not allow non-PODs in unions).
This means that creation and destruction must be explicit. There is a
new method vec<type, allocation, layout>::create() and another vec<type,
allocation, layout>::destroy() to allocate the internal vector.
For vectors that must be pointers, there is a family of free functions
that implement the operations that need to tolerate NULL vectors.
These functions all start with the prefix 'vec_safe_'. See the wiki
page for details.
The gengtype change removes the special handling for VEC() that used
to exist in gengtype. Additionally, it allows gengtype to recognize
templates of more than one argument and introduces the concept of an
undefined type (useful for template arguments that may or may not be
types).
When a TYPE_UNDEFINED is reached, gengtype will ignore it if it
happens inside a type marked with GTY((user)). Otherwise, it will
emit an error.
Finally, gengtype rejects root types marked GTY((user)) that are not
first class pointers.
2012-11-16 Diego Novillo <dnovillo@google.com>
VEC API overhaul (http://gcc.gnu.org/wiki/cxx-conversion/cxx-vec)
* vec.c (register_overhead): Convert it into
member function of vec_prefix.
(release_overhead): Likewise.
(calculate_allocation): Likewise.
(vec_heap_free): Remove.
(vec_gc_o_reserve_1): Remove.
(vec_heap_o_reserve_1): Remove.
(vec_stack_o_reserve_1): Remove.
(vec_stack_o_reserve_exact): Remove.
(register_stack_vec): New.
(stack_vec_register_index): New.
(unregister_stack_vec): New.
(vec_assert_fail): Remove.
* vec.h: Conditionally include ggc.h. Document conditional
hackery.
Update top-level documentation.
(ALONE_VEC_CHECK_INFO): Remove.
(VEC_CHECK_INFO): Remove.
(ALONE_VEC_CHECK_DECL): Remove.
(VEC_CHECK_DECL): Remove.
(ALONE_VEC_CHECK_PASS): Remove.
(VEC_CHECK_PASS): Remove.
(VEC_ASSERT): Remove.
(vec_prefix): Add friends va_gc, va_gc_atomic, va_heap and
va_stack.
Mark fields alloc_ and num_ as protected.
(struct vec_t): Remove. Remove all function members.
(struct vl_embed): Declare.
(struct vl_ptr): Declare.
(free): Remove.
(reserve_exact): Remove.
(reserve): Remove.
(safe_splice): Remove.
(safe_push): Remove.
(safe_grow): Remove.
(safe_grow_cleared): Remove.
(safe_insert): Remove.
(DEF_VEC_I): Remove.
(DEF_VEC_ALLOC_I): Remove.
(DEF_VEC_P): Remove.
(DEF_VEC_ALLOC_P): Remove.
(DEF_VEC_O): Remove.
(DEF_VEC_ALLOC_O): Remove.
(DEF_VEC_ALLOC_P_STACK): Remove.
(DEF_VEC_ALLOC_O_STACK): Remove.
(DEF_VEC_ALLOC_I_STACK): Remove.
(DEF_VEC_A): Remove.
(DEF_VEC_ALLOC_A): Remove.
(vec_stack_p_reserve_exact_1): Remove.
(vec_stack_o_reserve): Remove.
(vec_stack_o_reserve_exact): Remove.
(VEC_length): Remove.
(VEC_empty): Remove.
(VEC_address): Remove.
(vec_address): Remove.
(VEC_last): Remove.
(VEC_index): Remove.
(VEC_iterate): Remove.
(VEC_embedded_size): Remove.
(VEC_embedded_init): Remove.
(VEC_free): Remove.
(VEC_copy): Remove.
(VEC_space): Remove.
(VEC_reserve): Remove.
(VEC_reserve_exact): Remove.
(VEC_splice): Remove.
(VEC_safe_splice): Remove.
(VEC_quick_push): Remove.
(VEC_safe_push): Remove.
(VEC_pop): Remove.
(VEC_truncate): Remove.
(VEC_safe_grow): Remove.
(VEC_replace): Remove.
(VEC_quick_insert): Remove.
(VEC_safe_insert): Remove.
(VEC_ordered_remove): Remove.
(VEC_unordered_remove): Remove.
(VEC_block_remove): Remove.
(VEC_lower_bound): Remove.
(VEC_alloc): Remove.
(VEC_qsort): Remove.
(va_heap): Declare.
(va_heap::default_layout): New typedef to vl_ptr.
(va_heap::reserve): New.
(va_heap::release): New.
(va_gc): Declare.
(va_gc::default_layout): New typedef to vl_embed.
(va_gc::reserve): New.
(va_gc::release): New.
(va_gc_atomic): Declare. Inherit from va_gc.
(va_stack): Declare.
(va_stack::default_layout): New typedef to vl_ptr.
(va_stack::alloc): New.
(va_stack::reserve): New.
(va_stack::release): New.
(register_stack_vec): Declare.
(stack_vec_register_index): Declare.
(unregister_stack_vec): Declare.
(vec<T, A = va_heap, L = typename A::default_layout>): Declare
empty vec template.
(vec<T, A, vl_embed>): Partial specialization for embedded
layout.
(vec<T, A, vl_embed>::allocated): New.
(vec<T, A, vl_embed>::length): New.
(vec<T, A, vl_embed>::is_empty): New.
(vec<T, A, vl_embed>::address): New.
(vec<T, A, vl_embed>::operator[]): New.
(vec<T, A, vl_embed>::last New.
(vec<T, A, vl_embed>::space): New.
(vec<T, A, vl_embed>::iterate): New.
(vec<T, A, vl_embed>::iterate): New.
(vec<T, A, vl_embed>::copy): New.
(vec<T, A, vl_embed>::splice): New.
(vec<T, A, vl_embed>::quick_push New.
(vec<T, A, vl_embed>::pop New.
(vec<T, A, vl_embed>::truncate): New.
(vec<T, A, vl_embed>::quick_insert): New.
(vec<T, A, vl_embed>::ordered_remove): New.
(vec<T, A, vl_embed>::unordered_remove): New.
(vec<T, A, vl_embed>::block_remove): New.
(vec<T, A, vl_embed>::qsort): New.
(vec<T, A, vl_embed>::lower_bound): New.
(vec<T, A, vl_embed>::embedded_size): New.
(vec<T, A, vl_embed>::embedded_init): New.
(vec<T, A, vl_embed>::quick_grow): New.
(vec<T, A, vl_embed>::quick_grow_cleared): New.
(vec_safe_space): New.
(vec_safe_length): New.
(vec_safe_address): New.
(vec_safe_is_empty): New.
(vec_safe_reserve): New.
(vec_safe_reserve_exact): New.
(vec_alloc): New.
(vec_free): New.
(vec_safe_grow): New.
(vec_safe_grow_cleared): New.
(vec_safe_iterate): New.
(vec_safe_push): New.
(vec_safe_insert): New.
(vec_safe_truncate): New.
(vec_safe_copy): New.
(vec_safe_splice): New.
(vec<T, A, vl_ptr>): New partial specialization for the space
efficient layout.
(vec<T, A, vl_ptr>::exists): New.
(vec<T, A, vl_ptr>::is_empty): New.
(vec<T, A, vl_ptr>::length): New.
(vec<T, A, vl_ptr>::address): New.
(vec<T, A, vl_ptr>::operator[]): New.
(vec<T, A, vl_ptr>::operator!=): New.
(vec<T, A, vl_ptr>::operator==): New.
(vec<T, A, vl_ptr>::last): New.
(vec<T, A, vl_ptr>::space): New.
(vec<T, A, vl_ptr>::iterate): New.
(vec<T, A, vl_ptr>::copy): New.
(vec<T, A, vl_ptr>::reserve): New.
(vec<T, A, vl_ptr>::reserve_exact): New.
(vec<T, A, vl_ptr>::splice): New.
(vec<T, A, vl_ptr>::safe_splice): New.
(vec<T, A, vl_ptr>::quick_push): New.
(vec<T, A, vl_ptr>::safe_push): New.
(vec<T, A, vl_ptr>::pop): New.
(vec<T, A, vl_ptr>::truncate): New.
(vec<T, A, vl_ptr>::safe_grow): New.
(vec<T, A, vl_ptr>::safe_grow_cleared): New.
(vec<T, A, vl_ptr>::quick_grow): New.
(vec<T, A, vl_ptr>::quick_grow_cleared): New.
(vec<T, A, vl_ptr>::quick_insert): New.
(vec<T, A, vl_ptr>::safe_insert): New.
(vec<T, A, vl_ptr>::ordered_remove): New.
(vec<T, A, vl_ptr>::unordered_remove): New.
(vec<T, A, vl_ptr>::block_remove): New.
(vec<T, A, vl_ptr>::qsort): New.
(vec<T, A, vl_ptr>::lower_bound): New.
(vec_stack_alloc): Define.
(FOR_EACH_VEC_SAFE_ELT): Define.
* vecir.h: Remove. Update all users.
* vecprim.h: Remove. Update all users.
Move uchar to coretypes.h.
* Makefile.in (VEC_H): Add $(GGC_H).
Remove vecir.h and vecprim.h dependencies everywhere.
2012-11-16 Diego Novillo <dnovillo@google.com>
* gengtype-lex.l (VEC): Remove.
Add characters in the set [\!\>\.-].
* gengtype-parse.c (token_names): Remove "VEC".
(require_template_declaration): Remove handling of VEC_TOKEN.
(type): Likewise.
Call create_user_defined_type when parsing GTY((user)).
* gengtype-state.c (type_lineloc): handle TYPE_UNDEFINED.
(write_state_undefined_type): New.
(write_state_type): Call write_state_undefined_type for
TYPE_UNDEFINED.
(read_state_type): Call read_state_undefined_type for
TYPE_UNDEFINED.
* gengtype.c (dbgprint_count_type_at): Handle TYPE_UNDEFINED.
(create_user_defined_type): Make extern.
(type_for_name): Factor out of resolve_typedef.
(create_undefined_type): New
(resolve_typedef): Call it when we cannot find a previous
typedef and the type is not a template.
(find_structure): Accept TYPE_UNDEFINED.
(set_gc_used_type): Add argument ALLOWED_UNDEFINED_TYPES,
default to false.
Emit an error for TYPE_UNDEFINED unless LEVEL is GC_UNUSED or
ALLOWED_UNDEFINED_TYPES is set.
Set ALLOWED_UNDEFINED_TYPES to true for TYPE_USER_STRUCT.
(filter_type_name): Accept templates with more than one
argument.
(output_mangled_typename): Handle TYPE_UNDEFINED
(walk_type): Likewise.
(write_types_process_field): Likewise.
(write_func_for_structure): If CHAIN_NEXT is set, ORIG_S
should not be a user-defined type.
(write_types_local_user_process_field): Handle TYPE_ARRAY,
TYPE_NONE and TYPE_UNDEFINED.
(write_types_local_process_field): Likewise.
(contains_scalar_p): Return 0 for TYPE_USER_STRUCT.
(write_root): Reject user-defined types that are not pointers.
Handle TYPE_NONE, TYPE_UNDEFINED, TYPE_UNION, TYPE_LANG_STRUCT
and TYPE_PARAM_STRUCT.
(output_typename): Handle TYPE_NONE, TYPE_UNDEFINED, and
TYPE_ARRAY.
(dump_typekind): Handle TYPE_UNDEFINED.
* gengtype.h (enum typekind): Add TYPE_UNDEFINED.
(create_user_defined_type): Declare.
(enum gty_token): Remove VEC_TOKEN.
2012-11-16 Diego Novillo <dnovillo@google.com>
Adjust for new vec API (http://gcc.gnu.org/wiki/cxx-conversion/cxx-vec)
* coretypes.h (uchar): Define.
* alias.c: Use new vec API in vec.h.
* asan.c: Likewise.
* attribs.c: Likewise.
* basic-block.h: Likewise.
* bb-reorder.c: Likewise.
* builtins.c: Likewise.
* calls.c: Likewise.
* cfg.c: Likewise.
* cfganal.c: Likewise.
* cfgcleanup.c: Likewise.
* cfgexpand.c: Likewise.
* cfghooks.c: Likewise.
* cfghooks.h: Likewise.
* cfgloop.c: Likewise.
* cfgloop.h: Likewise.
* cfgloopanal.c: Likewise.
* cfgloopmanip.c: Likewise.
* cfgrtl.c: Likewise.
* cgraph.c: Likewise.
* cgraph.h: Likewise.
* cgraphclones.c: Likewise.
* cgraphunit.c: Likewise.
* combine.c: Likewise.
* compare-elim.c: Likewise.
* coverage.c: Likewise.
* cprop.c: Likewise.
* data-streamer.h: Likewise.
* dbxout.c: Likewise.
* dce.c: Likewise.
* df-core.c: Likewise.
* df-problems.c: Likewise.
* df-scan.c: Likewise.
* dominance.c: Likewise.
* domwalk.c: Likewise.
* domwalk.h: Likewise.
* dse.c: Likewise.
* dwarf2cfi.c: Likewise.
* dwarf2out.c: Likewise.
* dwarf2out.h: Likewise.
* emit-rtl.c: Likewise.
* except.c: Likewise.
* except.h: Likewise.
* expr.c: Likewise.
* expr.h: Likewise.
* final.c: Likewise.
* fold-const.c: Likewise.
* function.c: Likewise.
* function.h: Likewise.
* fwprop.c: Likewise.
* gcc.c: Likewise.
* gcse.c: Likewise.
* genattr.c: Likewise.
* genattrtab.c: Likewise.
* genautomata.c: Likewise.
* genextract.c: Likewise.
* genopinit.c: Likewise
* ggc-common.c: Likewise.
* ggc.h: Likewise.
* gimple-low.c: Likewise.
* gimple-ssa-strength-reduction.c: Likewise.
* gimple-streamer-in.c: Likewise.
* gimple.c: Likewise.
* gimple.h: Likewise.
* gimplify.c: Likewise.
* graph.c: Likewise.
* graphds.c: Likewise.
* graphds.h: Likewise.
* graphite-blocking.c: Likewise.
* graphite-clast-to-gimple.c: Likewise.
* graphite-dependences.c: Likewise.
* graphite-interchange.c: Likewise.
* graphite-optimize-isl.c: Likewise.
* graphite-poly.c: Likewise.
* graphite-poly.h: Likewise.
* graphite-scop-detection.c: Likewise.
* graphite-scop-detection.h: Likewise.
* graphite-sese-to-poly.c: Likewise.
* graphite.c: Likewise.
* godump.c: Likewise.
* haifa-sched.c: Likewise.
* hw-doloop.c: Likewise.
* hw-doloop.h: Likewise.
* ifcvt.c: Likewise.
* insn-addr.h: Likewise.
* ipa-cp.c: Likewise.
* ipa-inline-analysis.c: Likewise.
* ipa-inline-transform.c: Likewise.
* ipa-inline.c: Likewise.
* ipa-inline.h: Likewise.
* ipa-prop.c: Likewise.
* ipa-prop.h: Likewise.
* ipa-pure-const.c: Likewise.
* ipa-ref-inline.h: Likewise.
* ipa-ref.c: Likewise.
* ipa-ref.h: Likewise.
* ipa-reference.c: Likewise.
* ipa-split.c: Likewise.
* ipa-utils.c: Likewise.
* ipa-utils.h: Likewise.
* ipa.c: Likewise.
* ira-build.c: Likewise.
* ira-color.c: Likewise.
* ira-emit.c: Likewise.
* ira-int.h: Likewise.
* ira.c: Likewise.
* loop-invariant.c: Likewise.
* loop-unroll.c: Likewise.
* lower-subreg.c: Likewise.
* lra-lives.c: Likewise.
* lra.c: Likewise.
* lto-cgraph.c: Likewise.
* lto-section-out.c: Likewise.
* lto-streamer-in.c: Likewise.
* lto-streamer-out.c: Likewise.
* lto-streamer.h: Likewise.
* lto-symtab.c: Likewise.
* mcf.c: Likewise.
* modulo-sched.c: Likewise.
* omp-low.c: Likewise.
* opts-common.c: Likewise.
* opts-global.c: Likewise.
* opts.c: Likewise.
* opts.h: Likewise.
* passes.c: Likewise.
* predict.c: Likewise.
* print-tree.c: Likewise.
* profile.c: Likewise.
* profile.h: Likewise.
* read-rtl.c: Likewise.
* ree.c: Likewise.
* reg-stack.c: Likewise.
* regrename.c: Likewise.
* regrename.h: Likewise.
* reload.c: Likewise.
* reload.h: Likewise.
* reload1.c: Likewise.
* rtl.h: Likewise.
* sched-deps.c: Likewise.
* sched-int.h: Likewise.
* sdbout.c: Likewise.
* sel-sched-dump.c: Likewise.
* sel-sched-ir.c: Likewise.
* sel-sched-ir.h: Likewise.
* sel-sched.c: Likewise.
* sese.c: Likewise.
* sese.h: Likewise.
* statistics.h: Likewise.
* stmt.c: Likewise.
* stor-layout.c: Likewise.
* store-motion.c: Likewise.
* tlink.c: Likewise.
* toplev.c: Likewise.
* trans-mem.c: Likewise.
* tree-browser.c: Likewise.
* tree-call-cdce.c: Likewise.
* tree-cfg.c: Likewise.
* tree-cfgcleanup.c: Likewise.
* tree-chrec.c: Likewise.
* tree-chrec.h: Likewise.
* tree-complex.c: Likewise.
* tree-data-ref.c: Likewise.
* tree-data-ref.h: Likewise.
* tree-dfa.c: Likewise.
* tree-diagnostic.c: Likewise.
* tree-dump.c: Likewise.
* tree-eh.c: Likewise.
* tree-emutls.c: Likewise.
* tree-flow.h: Likewise.
* tree-if-conv.c: Likewise.
* tree-inline.c: Likewise.
* tree-inline.h: Likewise.
* tree-into-ssa.c: Likewise.
* tree-iterator.c: Likewise.
* tree-loop-distribution.c: Likewise.
* tree-mudflap.c: Likewise.
* tree-optimize.c: Likewise.
* tree-outof-ssa.c: Likewise.
* tree-parloops.c: Likewise.
* tree-phinodes.c: Likewise.
* tree-predcom.c: Likewise.
* tree-pretty-print.c: Likewise.
* tree-scalar-evolution.c: Likewise.
* tree-sra.c: Likewise.
* tree-ssa-address.c: Likewise.
* tree-ssa-alias.c: Likewise.
* tree-ssa-ccp.c: Likewise.
* tree-ssa-coalesce.c: Likewise.
* tree-ssa-dce.c: Likewise.
* tree-ssa-dom.c: Likewise.
* tree-ssa-forwprop.c: Likewise.
* tree-ssa-live.c: Likewise.
* tree-ssa-live.h: Likewise.
* tree-ssa-loop-im.c: Likewise.
* tree-ssa-loop-ivcanon.c: Likewise.
* tree-ssa-loop-ivopts.c: Likewise.
* tree-ssa-loop-manip.c: Likewise.
* tree-ssa-loop-niter.c: Likewise.
* tree-ssa-loop-prefetch.c: Likewise.
* tree-ssa-math-opts.c: Likewise.
* tree-ssa-operands.c: Likewise.
* tree-ssa-phiopt.c: Likewise.
* tree-ssa-phiprop.c: Likewise.
* tree-ssa-pre.c: Likewise.
* tree-ssa-propagate.c: Likewise.
* tree-ssa-reassoc.c: Likewise.
* tree-ssa-sccvn.c: Likewise.
* tree-ssa-sccvn.h: Likewise.
* tree-ssa-strlen.c: Likewise.
* tree-ssa-structalias.c: Likewise.
* tree-ssa-tail-merge.c: Likewise.
* tree-ssa-threadedge.c: Likewise.
* tree-ssa-threadupdate.c: Likewise.
* tree-ssa-uncprop.c: Likewise.
* tree-ssa-uninit.c: Likewise.
* tree-ssa.c: Likewise.
* tree-ssanames.c: Likewise.
* tree-stdarg.c: Likewise.
* tree-streamer-in.c: Likewise.
* tree-streamer-out.c: Likewise.
* tree-streamer.c: Likewise.
* tree-streamer.h: Likewise.
* tree-switch-conversion.c: Likewise.
* tree-vect-data-refs.c: Likewise.
* tree-vect-generic.c: Likewise.
* tree-vect-loop-manip.c: Likewise.
* tree-vect-loop.c: Likewise.
* tree-vect-patterns.c: Likewise.
* tree-vect-slp.c: Likewise.
* tree-vect-stmts.c: Likewise.
* tree-vectorizer.c: Likewise.
* tree-vectorizer.h: Likewise.
* tree-vrp.c: Likewise.
* tree.c: Likewise.
* tree.h: Likewise.
* value-prof.c: Likewise.
* value-prof.h: Likewise.
* var-tracking.c: Likewise.
* varasm.c: Likewise.
* varpool.c: Likewise.
* vmsdbgout.c: Likewise.
* config/bfin/bfin.c: Likewise.
* config/c6x/c6x.c: Likewise.
* config/darwin.c: Likewise.
* config/i386/i386.c: Likewise.
* config/ia64/ia64.c: Likewise.
* config/mep/mep.c: Likewise.
* config/mips/mips.c: Likewise.
* config/pa/pa.c: Likewise.
* config/rs6000/rs6000-c.c: Likewise.
* config/rs6000/rs6000.c: Likewise.
* config/rx/rx.c: Likewise.
* config/spu/spu-c.c: Likewise.
* config/vms/vms.c: Likewise.
* config/vxworks.c: Likewise.
* config/epiphany/resolve-sw-modes.c: Likewise.
From-SVN: r193595
|
|
cgraph_get_create_node.
2012-11-13 Sriraman Tallam <tmsriram@google.com>
* cgraph.c (insert_new_cgraph_node_version): Use cgraph_get_node
instead of cgraph_get_create_node.
* config/i386/i386.c (ix86_get_function_versions_dispatcher): Move ifunc
not supported code to the end.
* class.c (mark_versions_used): Remove.
(resolve_address_of_overloaded_function): Call target hook
for versioned functions. Refactor to call
get_function_versions_dispatcher.
* decl.c (duplicate_decls): Add comments.
* cp/call.c (get_function_version_dispatcher): Expose function.
(mark_versions_used): Expose function.
* cp/cp-tree.h (mark_versions_used): New declaration.
(get_function_version_dispatcher): Ditto.
* testsuite/g++.dg/mv4.C: Add require ifunc. Change error message.
* testsuite/g++.dg/mv5.C: Add require ifunc.
* testsuite/g++.dg/mv6.C: Add require ifunc.
From-SVN: r193486
|
|
* cfghooks.c (cgraph_debug_gimple_stmt): Handle a null
current_function_decl.
From-SVN: r193269
|
|
========================
Sriraman Tallam, tmsriram@google.com
Overview of the patch which adds support to specify function versions. This is
only enabled for target i386.
Example:
int foo (); /* Default version */
int foo () __attribute__ ((target("avx,popcnt")));/*Specialized for avx and popcnt */
int foo () __attribute__ ((target("arch=core2,ssse3")));/*Specialized for core2 and ssse3*/
int main ()
{
int (*p)() = &foo;
return foo () + (*p)();
}
int foo ()
{
return 0;
}
int __attribute__ ((target("avx,popcnt")))
foo ()
{
return 0;
}
int __attribute__ ((target("arch=core2,ssse3")))
foo ()
{
return 0;
}
The above example has foo defined 3 times, but all 3 definitions of foo are
different versions of the same function. The call to foo in main, directly and
via a pointer, are calls to the multi-versioned function foo which is dispatched
to the right foo at run-time.
Front-end changes:
The front-end changes are calls at appropriate places to target hooks that
determine the following:
* Determine if two function decls with the same signature are versions.
* Determine the assembler name of a function version.
* Generate the dispatcher function for a set of function versions.
* Compare versions to see if one has a higher priority over the other.
All the implementation happens in the target-specific config/i386/i386.c.
What does the patch do?
* Tracking decls that correspond to function versions of function
name, say "foo":
When the front-end sees more than one decl for "foo", it calls a target hook to
determine if they are versions. To prevent duplicate definition errors with
other versions of "foo", "decls_match" function in cp/decl.c is made to return
false when 2 decls have are deemed versions by the target. This will make all
function versions of "foo" to be added to the overload list of "foo".
* Change the assembler names of the function versions.
For i386, the target changes the assembler names of the function versions by
suffixing the sorted list of args to "target" to the function name of "foo".
For example, the assembler name of
"void foo () __attribute__ ((target ("sse4")))" will
become _Z3foov.sse4. The target hook mangle_decl_assembler_name is used
for this.
* Overload resolution:
Function "build_over_call" in cp/call.c sees a call to function
"foo", which is multi-versioned. The overload resolution happens in
function "joust" in "cp/call.c". Here, the call to "foo" has all
possible versions of "foo" as candidates. All the candidates of "foo" are
stored in the cgraph side data structure. Each version of foo is chained in a
doubly-linked list with the default function as the first element. This allows
any pass to access all the semantically identical versions. A call to a
multi-versioned function will be replaced by a call to a dispatcher function,
determined by a target hook, to execute the right function version at run-time.
Optimization to directly call a version when possible:
Also, in joust, where overload resolution happens, a multiversioned function
resolution is made to return the most specialized version. This is the version
that will be checked for dispatching first and is determined by the target.
Now, if the caller can inline this function version then a direct call is made
to this function version rather than go through the dispatcher. When a direct
call cannot be made, a call to the dispatcher function is created.
* Creating the dispatcher body.
The dispatcher body, called the resolver is made only when there is a call to a
multiversioned function dispatcher or the address of a function is taken. This
is generated during cgraph_analyze_function. This is done by another target hook.
* Dispatch ordering.
The order in which the function versions are checked during dispatch is based
on a priority value assigned for the ISA that is catered. More specialized
versions are checked for dispatching first. This is to mitigate the ambiguity
that can arise when more than one function version is valid for execution on
a particular platform. This is not a perfect solution, and in future the user
should be allowed to assign a dispatching priority value to each version.
Function MV in the Intel compiler:
The intel compiler supports function multiversioning and the syntax is
similar to the patch proposed here. Here is an example of how to
generate multiple function versions with the intel compiler.
/* Create a stub function to specify the various versions of function that
will be created, using declspec attribute cpu_dispatch. */
__declspec (cpu_dispatch (core_i7_sse4_2, atom, generic))
void foo () {};
/* Bodies of each function version. */
/* Intel Corei7 processor + SSE4.2 version. */
__declspec (cpu_specific(core_i7_sse4_2))
void foo ()
{
printf ("corei7 + sse4.2");
}
/* Atom processor. */
__declspec (cpu_specific(atom))
void foo ()
{
printf ("atom");
}
/* The generic or the default version. */
__declspec (cpu_specific(generic))
void foo ()
{
printf ("This is generic");
}
A new function version is generated by defining a new function with the same
signature but with a different cpu_specific declspec attribute string. The
set of cpu_specific strings that are allowed is the following:
"core_2nd_gen_avx"
"core_aes_pclmulqdq"
"core_i7_sse4_2"
"core_2_duo_sse4_1"
"core_2_duo_ssse3"
"atom"
"pentium_4_sse3"
"pentium_4"
"pentium_m"
"pentium_iii"
"generic"
Comparison with the GCC MV implementation in this patch:
* Version creation syntax:
The implementation in this patch also has a similar syntax to specify function
versions. The first stub function is not needed. Here is the code to generate
the function versions with this patch:
/* Intel Corei7 processor + SSE4.2 version. */
__attribute__ ((target ("arch=corei7, sse4.2")))
void foo ()
{
printf ("corei7 + sse4.2");
}
/* Atom processor. */
__attribute__ ((target ("arch=atom")))
void foo ()
{
printf ("atom");
}
void foo ()
{
}
The target attribute can have one of the following arch names:
"amd"
"intel"
"atom"
"core2"
"corei7"
"nehalem"
"westmere"
"sandybridge"
"amdfam10h"
"barcelona"
"shanghai"
"istanbul"
"amdfam15h"
"bdver1"
"bdver2"
and any number of the following ISA names:
"cmov"
"mmx"
"popcnt"
"sse"
"sse2"
"sse3"
"ssse3"
"sse4.1"
"sse4.2"
"avx"
"avx2"
* doc/tm.texi.in (TARGET_OPTION_FUNCTION_VERSIONS): New hook
description.
* (TARGET_COMPARE_VERSION_PRIORITY): New hook description.
* (TARGET_GET_FUNCTION_VERSIONS_DISPATCHER): New hook description.
* (TARGET_GENERATE_VERSION_DISPATCHER_BODY): New hook description.
* doc/tm.texi: Regenerate.
* target.def (compare_version_priority): New target hook.
* (generate_version_dispatcher_body): New target hook.
* (get_function_versions_dispatcher): New target hook.
* (function_versions): New target hook.
* cgraph.c (cgraph_fnver_htab): New htab.
(cgraph_fn_ver_htab_hash): New function.
(cgraph_fn_ver_htab_eq): New function.
(version_info_node): New pointer.
(insert_new_cgraph_node_version): New function.
(get_cgraph_node_version): New function.
(delete_function_version): New function.
(record_function_versions): New function.
* cgraph.h (cgraph_node): New bitfield dispatcher_function.
(cgraph_function_version_info): New struct.
(get_cgraph_node_version): New function.
(insert_new_cgraph_node_version): New function.
(record_function_versions): New function.
(delete_function_version): New function.
(init_lowered_empty_function): Expose function.
* tree.h (DECL_FUNCTION_VERSIONED): New macro.
(tree_function_decl): New bit-field versioned_function.
* cgraphunit.c (cgraph_analyze_function): Generate body of multiversion
function dispatcher.
(cgraph_analyze_functions): Analyze dispatcher function.
(init_lowered_empty_function): Make non-static. New parameter in_ssa.
(assemble_thunk): Add parameter to call to init_lowered_empty_function.
* config/i386/i386.c (add_condition_to_bb): New function.
(get_builtin_code_for_version): New function.
(ix86_compare_version_priority): New function.
(feature_compare): New function.
(dispatch_function_versions): New function.
(ix86_function_versions): New function.
(attr_strcmp): New function.
(ix86_mangle_function_version_assembler_name): New function.
(ix86_mangle_decl_assembler_name): New function.
(make_name): New function.
(make_dispatcher_decl): New function.
(is_function_default_version): New function.
(ix86_get_function_versions_dispatcher): New function.
(make_attribute): New function.
(make_resolver_func): New function.
(ix86_generate_version_dispatcher_body): New function.
(fold_builtin_cpu): Return integer for cpu builtins.
(TARGET_MANGLE_DECL_ASSEMBLER_NAME): New macro.
(TARGET_COMPARE_VERSION_PRIORITY): New macro.
(TARGET_GENERATE_VERSION_DISPATCHER_BODY): New macro.
(TARGET_GET_FUNCTION_VERSIONS_DISPATCHER): New macro.
(TARGET_OPTION_FUNCTION_VERSIONS): New macro.
* class.c (add_method): Change assembler names of function versions.
(mark_versions_used): New static function.
(resolve_address_of_overloaded_function): Create dispatcher decl and
return address of dispatcher instead.
* decl.c (decls_match): Make decls unmatched for versioned
functions.
(duplicate_decls): Remove ambiguity for versioned functions.
Delete versioned function data for merged decls.
* decl2.c (check_classfn): Check attributes of versioned functions
for match.
* call.c (get_function_version_dispatcher): New function.
(mark_versions_used): New static function.
(build_over_call): Make calls to multiversioned functions
to call the dispatcher.
(joust): For calls to multi-versioned functions, make the most
specialized function version win.
* testsuite/g++.dg/mv1.C: New test.
* testsuite/g++.dg/mv2.C: New test.
* testsuite/g++.dg/mv3.C: New test.
* testsuite/g++.dg/mv4.C: New test.
* testsuite/g++.dg/mv5.C: New test.
* testsuite/g++.dg/mv6.C: New test.
From-SVN: r193204
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