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this patch iplements new class ao_compare that is derived from operand_compare
and adds a method to compare and hash ao_refs. This is used by ICF to enable
more merging.
Comparsion is done as follows
1) Verify that the memory access will happen at the same address
and will have same size.
For constant addresses this is done by comparing ao_ref_base
and offset/size
For varable accesses it uses operand_equal_p but with OEP_ADDRESS
(that does not match TBAA metadata) and then operand_equal_p on
type size.
2) Compare alignments. I use get_object_alignment_1 like ipa-icf
did before revamp to operand_equal_p in gcc 9.
I noticed that return value is bitodd so added a comment
3) Match MR_DEPENDENCE_CLIQUE
At this point the memory refrences are same except for TBAA information.
We continue by checking
4) ref and base alias sets. Now if lto streaming is going to happen
instead of comparing alias sets themselves we compare alias_ptr_types
(the patch depends on the ao_ref_alias_ptr_tyep and
ao_ref_base_alias_ptr_type acessors I sent yesterday)
5) See if accesses are view converted.
If they are we are done since access path is not present
6) Compare the part of access path relevant for TBAA.
I recall FRE relies on the fact that if base and ref types are same the
access path is, but I do not thing this is 100% reliable especially with LTO
alias sets.
The access path comparsion logic is also useful for modref (for next stage1).
Tracking the access paths improves quite noticeably disambiguation in C++
code by being able to distinquish different fields of same type within a
struct. I had the comparsion logic in my tree for some time and it seems to
work quite well.
During cc1plus build we have some cases where we find mismatch after matching
the base/ref alias sets. These are due to failed type merging: access path
oracle in LTO uses TYPE_MAIN_VARIANTs.
I implemented relatively basic hashing using base and offset.
gcc/ChangeLog:
* ipa-icf-gimple.c: Include tree-ssa-alias-compare.h.
(find_checker::func_checker): Initialize m_tbaa.
(func_checker::hash_operand): Use hash_ao_ref for memory accesses.
(func_checker::compare_operand): Use compare_ao_refs for memory
accesses.
(func_checker::cmopare_gimple_assign): Do not check LHS types
of memory stores.
* ipa-icf-gimple.h (func_checker): Derive from ao_compare;
add m_tbaa.
* ipa-icf.c: Include tree-ssa-alias-compare.h.
(sem_function::equals_private): Update call of
func_checker::func_checker.
* ipa-utils.h (lto_streaming_expected_p): New inline
predicate.
* tree-ssa-alias-compare.h: New file.
* tree-ssa-alias.c: Include tree-ssa-alias-compare.h
and bultins.h
(view_converted_memref_p): New function.
(types_equal_for_same_type_for_tbaa_p): New function.
(ao_ref_alias_ptr_type, ao_ref_base_alias_ptr_type): New functions.
(ao_compare::compare_ao_refs): New member function.
(ao_compare::hash_ao_ref): New function
* tree-ssa-alias.h (ao_ref_base_alias_ptr_type,
ao_ref_alias_ptr_type): Declare.
gcc/testsuite/ChangeLog:
* c-c++-common/Wstringop-overflow-2.c: Disable ICF.
* g++.dg/warn/Warray-bounds-8.C: Disable ICF.
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* tree-nrv.c (dest_safe_for_nrv_p): Disable tbaa in
call_may_clobber_ref_p and ref_maybe_used_by_stmt_p.
* tree-tailcall.c (find_tail_calls): Likewise.
* tree-ssa-alias.c (call_may_clobber_ref_p): Add tbaa_p parameter.
* tree-ssa-alias.h (call_may_clobber_ref_p): Update prototype.
* tree-ssa-sccvn.c (vn_reference_lookup_3): Pass data->tbaa_p
to call_may_clobber_ref_p_1.
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2020-09-19 David Cepelik <d@dcepelik.cz>
Jan Hubicka <hubicka@ucw.cz>
* Makefile.in: Add ipa-modref.c and ipa-modref-tree.c.
* alias.c: (reference_alias_ptr_type_1): Export.
* alias.h (reference_alias_ptr_type_1): Declare.
* common.opt (fipa-modref): New.
* gengtype.c (open_base_files): Add ipa-modref-tree.h and ipa-modref.h
* ipa-modref-tree.c: New file.
* ipa-modref-tree.h: New file.
* ipa-modref.c: New file.
* ipa-modref.h: New file.
* lto-section-in.c (lto_section_name): Add ipa_modref.
* lto-streamer.h (enum lto_section_type): Add LTO_section_ipa_modref.
* opts.c (default_options_table): Enable ipa-modref at -O1+.
* params.opt (-param=modref-max-bases, -param=modref-max-refs,
-param=modref-max-tests): New params.
* passes.def: Schedule pass_modref and pass_ipa_modref.
* timevar.def (TV_IPA_MODREF): New timevar.
(TV_TREE_MODREF): New timevar.
* tree-pass.h (make_pass_modref): Declare.
(make_pass_ipa_modref): Declare.
* tree-ssa-alias.c (dump_alias_stats): Include ipa-modref-tree.h
and ipa-modref.h
(alias_stats): Add modref_use_may_alias, modref_use_no_alias,
modref_clobber_may_alias, modref_clobber_no_alias, modref_tests.
(dump_alias_stats): Dump new stats.
(nonoverlapping_array_refs_p): Fix formating.
(modref_may_conflict): New function.
(ref_maybe_used_by_call_p_1): Use it.
(call_may_clobber_ref_p_1): Use it.
(call_may_clobber_ref_p): Update.
(stmt_may_clobber_ref_p_1): Update.
* tree-ssa-alias.h (call_may_clobber_ref_p_1): Update.
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From-SVN: r279813
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This patch converts various "gimple *" to "const gimple *" and similar
fixes for gimple subclasses, adding is_a_helper for gimple subclasses
to support the const form of as_a, and adding a few "const" overloads
of accessors.
This is enough to make pp_gimple_stmt_1's stmt const.
gcc/ChangeLog:
* gimple-predict.h (gimple_predict_predictor): Make "gs" param
const.
(gimple_predict_outcome): Likewise.
* gimple-pretty-print.c (do_niy): Likewise.
(dump_unary_rhs): Likewise.
(dump_binary_rhs): Likewise.
(dump_ternary_rhs): Likewise.
(dump_gimple_assign): Likewise.
(dump_gimple_return): Likewise.
(dump_gimple_call_args): Likewise.
(pp_points_to_solution): Make "pt" param const.
(dump_gimple_call): Make "gs" param const.
(dump_gimple_switch): Likewise.
(dump_gimple_cond): Likewise.
(dump_gimple_label): Likewise.
(dump_gimple_goto): Likewise.
(dump_gimple_bind): Likewise.
(dump_gimple_try): Likewise.
(dump_gimple_catch): Likewise.
(dump_gimple_eh_filter): Likewise.
(dump_gimple_eh_must_not_throw): Likewise.
(dump_gimple_eh_else): Likewise.
(dump_gimple_resx): Likewise.
(dump_gimple_eh_dispatch): Likewise.
(dump_gimple_debug): Likewise.
(dump_gimple_omp_for): Likewise.
(dump_gimple_omp_continue): Likewise.
(dump_gimple_omp_single): Likewise.
(dump_gimple_omp_taskgroup): Likewise.
(dump_gimple_omp_target): Likewise.
(dump_gimple_omp_teams): Likewise.
(dump_gimple_omp_sections): Likewise.
(dump_gimple_omp_block): Likewise.
(dump_gimple_omp_critical): Likewise.
(dump_gimple_omp_ordered): Likewise.
(dump_gimple_omp_scan): Likewise.
(dump_gimple_omp_return): Likewise.
(dump_gimple_transaction): Likewise.
(dump_gimple_asm): Likewise.
(dump_gimple_phi): Make "phi" param const.
(dump_gimple_omp_parallel): Make "gs" param const.
(dump_gimple_omp_task): Likewise.
(dump_gimple_omp_atomic_load): Likewise.
(dump_gimple_omp_atomic_store): Likewise.
(dump_gimple_mem_ops): Likewise.
(pp_gimple_stmt_1): Likewise. Add "const" to the various as_a <>
casts throughout.
* gimple-pretty-print.h (gimple_stmt_1): Make gimple * param const.
* gimple.h (is_a_helper <const gdebug *>::test): New.
(is_a_helper <const ggoto *>::test): New.
(is_a_helper <const glabel *>::test): New.
(is_a_helper <const geh_else *>::test): New.
(is_a_helper <const geh_mnt *>::test): New.
(is_a_helper <const gswitch *>::test): New.
(is_a_helper <const gtry *>::test): New.
(is_a_helper <const greturn *>::test): New.
(gimple_call_tail_p): Make param const.
(gimple_call_return_slot_opt_p): Likewise.
(gimple_call_va_arg_pack_p): Likewise.
(gimple_call_use_set): Add const overload.
(gimple_call_clobber_set): Likewise.
(gimple_has_lhs): Make param const.
(gimple_bind_body): Likewise.
(gimple_catch_handler): Likewise.
(gimple_eh_filter_failure): Likewise.
(gimple_eh_must_not_throw_fndecl): Likewise.
(gimple_eh_else_n_body): Likewise.
(gimple_eh_else_e_body): Likewise.
(gimple_try_eval): Likewise.
(gimple_try_cleanup): Likewise.
(gimple_phi_arg): Add const overload.
(gimple_phi_arg_def): Make param const.
(gimple_phi_arg_edge): Likewise.
(gimple_phi_arg_location): Likewise.
(gimple_phi_arg_has_location): Likewise.
(gimple_debug_bind_get_var): Likewise.
(gimple_debug_bind_get_value): Likewise.
(gimple_debug_source_bind_get_var): Likewise.
(gimple_debug_source_bind_get_value): Likewise.
(gimple_omp_body): Likewise.
(gimple_omp_for_collapse): Likewise.
(gimple_omp_for_pre_body): Likewise.
(gimple_transaction_body): Likewise.
* tree-eh.c (lookup_stmt_eh_lp_fn): Make param "t" const.
(lookup_stmt_eh_lp): Likewise.
* tree-eh.h (lookup_stmt_eh_lp_fn): Make param const.
(lookup_stmt_eh_lp): Likewise.
* tree-ssa-alias.h (pt_solution_empty_p): Make param const.
* tree-ssa-structalias.c (pt_solution_empty_p): Likewise.
From-SVN: r279581
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2019-09-16 Richard Biener <rguenther@suse.de>
PR tree-optimization/91756
PR tree-optimization/87132
* tree-ssa-alias.h (enum translate_flags): New.
(get_continuation_for_phi): Use it instead of simple bool flag.
(walk_non_aliased_vuses): Likewise.
* tree-ssa-alias.c (maybe_skip_until): Adjust.
(get_continuation_for_phi): When looking across backedges only
disallow valueization.
(walk_non_aliased_vuses): Adjust.
* tree-ssa-sccvn.c (vn_reference_lookup_3): Avoid valueization
if requested.
* gcc.dg/tree-ssa/ssa-fre-81.c: New testcase.
From-SVN: r275747
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non-bugs
gcc/c/ChangeLog:
PR c++/61339
* c-decl.c: Change class-key from class to struct and vice versa
to match convention and avoid -Wclass-is-pod and -Wstruct-no-pod.
* gimple-parser.c: Same.
gcc/c-family/ChangeLog:
PR c++/61339
* c-format.c (check_argument_type): Change class-key from class to
struct and vice versa to match convention and avoid -Wclass-is-pod
and -Wstruct-no-pod.
* c-pretty-print.h: Same.
gcc/cp/ChangeLog:
PR c++/61339
* constexpr.c (cxx_eval_call_expression): Change class-key from class
to struct and vice versa to match convention and avoid -Wclass-is-pod
and -Wstruct-no-pod.
* constraint.cc (get_concept_definition): Same.
* cp-tree.h: Same.
* cxx-pretty-print.h: Same.
* error.c: Same.
* logic.cc (term_list::replace): Same.
* name-lookup.c (find_local_binding): Same.
* pt.c (tsubst_binary_right_fold): Same.
* search.c (field_accessor_p): Same.
* semantics.c (expand_or_defer_fn): Same.
gcc/lto/ChangeLog:
PR c++/61339
* lto-dump.c: Change class-key from classi to struct and vice versa
to match convention and avoid -Wclass-is-pod and -Wstruct-no-pod.
gcc/ChangeLog:
PR c++/61339
* align.h: Change class-key from class to struct and vice versa
to match convention and avoid -Wclass-is-pod and -Wstruct-no-pod.
* alloc-pool.h: Same.
* asan.c (shadow_mem_size): Same.
* auto-profile.c: Same.
* basic-block.h: Same.
* bitmap.h: Same.
* cfgexpand.c (set_rtl): Same.
(expand_one_stack_var_at): Same.
* cfghooks.h: Same.
* cfgloop.h: Same.
* cgraph.h: Same.
* config/i386/i386.h: Same.
* df-problems.c (df_print_bb_index): Same.
* df-scan.c: Same.
* df.h (df_single_use): Same.
* diagnostic-show-locus.c (layout::print_annotation_line): Same.
(layout::annotation_line_showed_range_p): Same.
(get_printed_columns): Same.
(correction::ensure_terminated): Same.
(line_corrections::~line_corrections): Same.
* dojump.h: Same.
* dse.c: Same.
* dump-context.h: Same.
* dumpfile.h: Same.
* dwarf2out.c: Same.
* edit-context.c: Same.
* fibonacci_heap.c (test_union_of_equal_heaps): Same.
* flags.h: Same.
* function.c (assign_stack_local): Same.
* function.h: Same.
* gcc.c: Same.
* gcov.c (block_info::block_info): Same.
* genattrtab.c: Same.
* genextract.c: Same.
* genmatch.c (comparison_code_p): Same.
(id_base::id_base): Same.
(decision_tree::print): Same.
* genoutput.c: Same.
* genpreds.c (write_one_predicate_function): Same.
* genrecog.c (validate_pattern): Same.
(find_operand_positions): Same.
(optimize_subroutine_group): Same.
(merge_pattern_transition::merge_pattern_transition): Same.
(merge_pattern_info::merge_pattern_info): Same.
(merge_state_result::merge_state_result): Same.
(merge_into_state): Same.
* gensupport.c: Same.
* gensupport.h: Same.
* ggc-common.c (init_ggc_heuristics): Same.
* ggc-tests.c (test_union): Same.
* gimple-loop-interchange.cc (dump_induction): Same.
* gimple-loop-versioning.cc: Same.
* gimple-match.h (gimple_match_cond::any_else): Same.
* gimple-ssa-backprop.c: Same.
* gimple-ssa-sprintf.c: Same.
* gimple-ssa-store-merging.c (store_operand_info::store_operand_info): Same.
(store_immediate_info::store_immediate_info): Same.
(merged_store_group::apply_stores): Same.
(get_location_for_stmts): Same.
* gimple-ssa-strength-reduction.c: Same.
* gimple-ssa-warn-alloca.c: Same.
* gimple-ssa-warn-restrict.c (pass_wrestrict::execute): Same.
* godump.c (go_type_decl): Same.
* hash-map-tests.c (test_map_of_strings_to_int): Same.
* hash-map.h: Same.
* hash-set-tests.c (test_set_of_strings): Same.
* hsa-brig.c: Same.
* hsa-common.h: Same.
* hsa-gen.c (transformable_switch_to_sbr_p): Same.
* input.c (assert_loceq): Same.
* input.h: Same.
* ipa-cp.c: Same.
* ipa-devirt.c (possible_polymorphic_call_targets_1): Same.
* ipa-fnsummary.h: Same.
* ipa-inline.h: Same.
* ipa-prop.h: Same.
* ipa-split.c (visit_bb): Same.
* ira-int.h (minmax_set_iter_next): Same.
* loop-invariant.c: Same.
* loop-iv.c: Same.
* lra-eliminations.c: Same.
* lra-int.h: Same.
* lra-lives.c (mark_regno_dead): Same.
* lra-remat.c: Same.
* lra-spills.c: Same.
* lto-streamer.h: Same.
* mem-stats.h: Same.
* omp-grid.c (omp_grid_lastprivate_predicate): Same.
* omp-low.c (omp_clause_aligned_alignment): Same.
* optabs-query.h (get_vcond_eq_icode): Same.
* optabs.h: Same.
* opts.c (wrap_help): Same.
* poly-int.h: Same.
* predict.c (predict_paths_leading_to_edge): Same.
* pretty-print.h: Same.
* profile-count.h: Same.
* read-md.h: Same.
* read-rtl-function.c: Same.
* ree.c: Same.
* reginfo.c: Same.
* regrename.c: Same.
* regrename.h: Same.
* reload.h: Same.
* rtl-iter.h: Same.
* rtl.h (costs_add_n_insns): Same.
* sanopt.c: Same.
* sched-int.h: Same.
* sel-sched-ir.h: Same.
* selftest.h: Same.
* sese.h (vec_find): Same.
* stmt.c: Same.
* target-globals.h: Same.
* tree-affine.c (aff_combination_find_elt): Same.
* tree-affine.h: Same.
* tree-data-ref.h: Same.
* tree-outof-ssa.c (ssa_is_replaceable_p): Same.
* tree-predcom.c: Same.
* tree-scalar-evolution.c (find_var_scev_info): Same.
* tree-ssa-alias.h: Same.
* tree-ssa-ccp.c: Same.
* tree-ssa-coalesce.c (ssa_conflicts_dump): Same.
* tree-ssa-loop-im.c (for_all_locs_in_loop): Same.
(rewrite_mem_refs): Same.
(execute_sm_if_changed): Same.
(hoist_memory_references): Same.
* tree-ssa-loop-ivopts.c (operator<=): Same.
* tree-ssa-loop.h: Same.
* tree-ssa-pre.c (get_or_alloc_expr_for_name): Same.
* tree-ssa-structalias.c: Same.
* tree-switch-conversion.h (cluster::cluster): Same.
(simple_cluster::simple_cluster): Same.
* tree-vect-patterns.c (type_conversion_p): Same.
* tree-vectorizer.c (dump_stmt_cost): Same.
* tree-vectorizer.h (loop_vec_info_for_loop): Same.
* tree.c (protected_set_expr_location): Same.
* tree.h (desired_pro_or_demotion_p): Same.
(fndecl_built_in_p): Same.
* unique-ptr-tests.cc: Same.
* var-tracking.c (delete_variable_part): Same.
* varasm.c (assemble_real): Same.
(tree_output_constant_def): Same.
* vec.c: Same.
* wide-int-bitmask.h: Same.
* wide-int.h (decompose): Same.
From-SVN: r273308
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unaliased pointers)
2019-07-05 Richard Biener <rguenther@suse.de>
PR tree-optimization/91091
* tree-ssa-alias.h (get_continuation_for_phi): Add tbaa_p parameter.
(walk_non_aliased_vuses): Likewise.
* tree-ssa-alias.c (maybe_skip_until): Pass down tbaa_p.
(get_continuation_for_phi): New tbaa_p parameter and pass
it down.
(walk_non_aliased_vuses): Likewise.
* ipa-prop.c (determine_known_aggregate_parts): Adjust.
* tree-ssa-pre.c (translate_vuse_through_block): Likewise.
* tree-ssa-scopedtables.c (avail_exprs_stack::lookup_avail_expr):
Likewise.
* tree-ssa-sccvn.c (struct vn_walk_cb_data): Add tbaa_p flag.
(adjust_offsets_for_equal_base_address): New function.
(vn_reference_lookup_3): Use it to catch more base equivalences.
Handle and pass down tbaa_p flag.
(vn_reference_lookup_pieces): Adjust.
(vn_reference_lookup): Remove alias-set altering, instead pass
down false as tbaa_p.
* gcc.dg/tree-ssa/pr91091-2.c: New testcase.
* gcc.dg/tree-ssa/ssa-fre-70.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-71.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-72.c: Likewise.
From-SVN: r273135
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stmt walking for Go example)
2019-05-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/90316
* tree-ssa-alias.h (get_continuation_for_phi): Take walking
limit by reference.
(walk_non_aliased_vuses): Take walking limit argument.
* tree-ssa-alias.c (maybe_skip_until): Take limit and abort
walking if it is reached instead of just counting.
(get_continuation_for_phi): Likewise.
(walk_non_aliased_vuses): Likewise, instead of leaving counter
limiting to the callback.
* tree-ssa-sccvn.c (vn_reference_lookup_2): Adjust.
(vn_reference_lookup_3): Likewise.
(vn_reference_lookup_pieces): Likewise.
(vn_reference_lookup): Likewise.
* tree-ssa-pre.c (translate_vuse_through_block): Limit walking.
* tree-ssa-scopedtables.c (vuse_eq): Adjust.
(avail_exprs_stack::lookup_avail_expr): Likewise.
From-SVN: r270940
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From-SVN: r267494
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true.
2018-05-25 Richard Biener <rguenther@suse.de>
* tree-ssa-alias.h (refs_may_alias_p): Add tbaa_p bool parameter,
defaulted to true.
(ref_maybe_used_by_stmt_p): Likewise.
(stmt_may_clobber_ref_p): Likewise.
(stmt_may_clobber_ref_p_1): Likewise.
* tree-ssa-alias.c (refs_may_alias_p): Add tbaa_p bool parameter
and pass it along.
(ref_maybe_used_by_stmt_p): Likewise.
(stmt_may_clobber_ref_p): Likewise.
(stmt_may_clobber_ref_p_1): Likewise.
* tree-vect-data-refs.c (vect_slp_analyze_node_dependences): Use
the alias oracle to disambiguate DRs with stmts DR analysis
couldn't handle.
(vect_analyze_data_refs): Do not give up on not analyzable
DRs for BB vectorization. Remove code truncating the dataref
vector.
From-SVN: r260757
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From-SVN: r256169
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This patch changes the offset, size and max_size fields
of ao_ref from HOST_WIDE_INT to poly_int64 and propagates
the change through the code that references it. This includes
changing the off field of vn_reference_op_struct in the same way.
2017-12-20 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* inchash.h (inchash::hash::add_poly_int): New function.
* tree-ssa-alias.h (ao_ref::offset, ao_ref::size, ao_ref::max_size):
Use poly_int64 rather than HOST_WIDE_INT.
(ao_ref::max_size_known_p): New function.
* tree-ssa-sccvn.h (vn_reference_op_struct::off): Use poly_int64_pod
rather than HOST_WIDE_INT.
* tree-ssa-alias.c (ao_ref_base): Apply get_ref_base_and_extent
to temporaries until its interface is adjusted to match.
(ao_ref_init_from_ptr_and_size): Handle polynomial offsets and sizes.
(aliasing_component_refs_p, decl_refs_may_alias_p)
(indirect_ref_may_alias_decl_p, indirect_refs_may_alias_p): Take
the offsets and max_sizes as poly_int64s instead of HOST_WIDE_INTs.
(refs_may_alias_p_1, stmt_kills_ref_p): Adjust for changes to
ao_ref fields.
* alias.c (ao_ref_from_mem): Likewise.
* tree-ssa-dce.c (mark_aliased_reaching_defs_necessary_1): Likewise.
* tree-ssa-dse.c (valid_ao_ref_for_dse, normalize_ref)
(clear_bytes_written_by, setup_live_bytes_from_ref, compute_trims)
(maybe_trim_complex_store, maybe_trim_constructor_store)
(live_bytes_read, dse_classify_store): Likewise.
* tree-ssa-sccvn.c (vn_reference_compute_hash, vn_reference_eq):
(copy_reference_ops_from_ref, ao_ref_init_from_vn_reference)
(fully_constant_vn_reference_p, valueize_refs_1): Likewise.
(vn_reference_lookup_3): Likewise.
* tree-ssa-uninit.c (warn_uninitialized_vars): Likewise.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r255872
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Most GCC ranges seem to be represented as an offset and a size (rather
than a start and inclusive end or start and exclusive end). The usual
test for whether X is in a range is of course:
x >= start && x < start + size
or:
x >= start && x - start < size
which means that an empty range of size 0 contains nothing. But other
range tests aren't as obvious.
The usual test for whether one range is contained within another
range is:
start1 >= start2 && start1 + size1 <= start2 + size2
while the test for whether two ranges overlap (from ranges_overlap_p) is:
(start1 >= start2 && start1 < start2 + size2)
|| (start2 >= start1 && start2 < start1 + size1)
i.e. the ranges overlap if one range contains the start of the other
range. This leads to strange results like:
(start X, size 0) is a subrange of (start X, size 0) but
(start X, size 0) does not overlap (start X, size 0)
Similarly:
(start 4, size 0) is a subrange of (start 2, size 2) but
(start 4, size 0) does not overlap (start 2, size 2)
It seems like "X is a subrange of Y" should imply "X overlaps Y".
This becomes harder to ignore with the runtime sizes and offsets
added for SVE. The most obvious fix seemed to be to say that
an empty range does not overlap anything, and is therefore not
a subrange of anything.
Using the new definition of subranges didn't seem to cause any
codegen differences in the testsuite. But there was one change
with the new definition of overlapping ranges. strncpy-chk.c has:
memset (dst, 0, sizeof (dst));
if (strncpy (dst, src, 0) != dst || strcmp (dst, ""))
abort();
The strncpy is detected as a zero-size write, and so with the new
definition of overlapping ranges, we treat the strncpy as having
no effect on the strcmp (which is true). The reaching definition
is the memset instead.
This patch makes ranges_overlap_p return false for zero-sized
ranges, even if the other range has an unknown size.
2017-11-01 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* tree-ssa-alias.h (ranges_overlap_p): Return false if either
range is known to be empty.
From-SVN: r254312
|
|
to base class constructor should warn (-Wunitialized))
2017-03-02 Richard Biener <rguenther@suse.de>
PR tree-optimization/79345
PR c++/42000
* tree-ssa-alias.c (walk_aliased_vdefs_1): Take a limit
param and abort the walk, returning -1 if it is hit.
(walk_aliased_vdefs): Take a limit param and pass it on.
* tree-ssa-alias.h (walk_aliased_vdefs): Add a limit param,
defaulting to 0 and return a signed int.
* tree-ssa-uninit.c (struct check_defs_data): New struct.
(check_defs): New helper.
(warn_uninitialized_vars): Use walk_aliased_vdefs to warn
about uninitialized memory.
* fixed-value.c (fixed_from_string): Use ulow/uhigh to avoid
bogus uninitialized warning.
(fixed_convert_from_real): Likewise.
* g++.dg/warn/Wuninitialized-7.C: New testcase.
* c-c++-common/ubsan/bounds-2.c: Add -Wno-uninitialized.
* gcc.dg/uninit-pr19430-2.c: Add expected warning.
From-SVN: r245840
|
|
From-SVN: r243994
|
|
alias analysis)
2016-11-02 Richard Biener <rguenther@suse.de>
PR tree-optimization/78035
PR tree-optimization/77964
* gimple-pretty-print.c (pp_points_to_solution): Print
vars_contains_interposable.
* tree-ssa-alias.c: Include varasm.h.
(ptrs_compare_unequal): Check vars_contains_interposable and
decl_binds_to_current_def_p.
(dump_points_to_solution): Dump vars_contains_interposable.
* tree-ssa-alias.h (struct pt_solution): Add vars_contains_interposable
flag.
* tree-ssa-structalias.c: Include varasm.h.
(set_uids_in_ptset): Record whether vars contains a
not decl_binds_to_current_def_p variable in vars_contains_interposable.
(ipa_escaped_pt): Update initializer.
* gcc.target/i386/pr78035.c: New testcase.
From-SVN: r241776
|
|
Set nonnull attribute to ptr_info_def based on VRP
gcc/ChangeLog:
2016-10-18 Kugan Vivekanandarajah <kuganv@linaro.org>
* tree-ssa-alias.h (pt_solution_singleton_or_null_p): Renamed from
pt_solution_singleton_p.
* tree-ssa-ccp.c (fold_builtin_alloca_with_align): Use renamed
pt_solution_singleton_or_null_p from pt_solution_singleton_p.
* tree-ssa-structalias.c (find_what_p_points_to): Preserve
pointer nonnull computed by VRP.
Also Conservatively set pt.null to 1.
(pt_solution_reset): Conservatively set pt.null to 1.
(pt_solution_singleton_or_null_p): Renamed from
pt_solution_singleton_p.
* tree-ssanames.h (set_ptr_nonnull): Declare.
(get_ptr_nonnull): Likewise.
* tree-ssanames.c (set_ptr_nonnull): New.
(get_ptr_nonnull): Likewise.
* tree-vrp.c (vrp_finalize): Set ptr that are nonnull.
(evrp_dom_walker::before_dom_children): Likewise.
gcc/testsuite/ChangeLog:
2016-10-18 Kugan Vivekanandarajah <kuganv@linaro.org>
* gcc.dg/torture/pr39074-2.c: Adjust testcase.
* gcc.dg/torture/pr39074.c: Likewise.
From-SVN: r241287
|
|
2016-05-12 Richard Biener <rguenther@suse.de>
PR tree-optimization/71062
* tree-ssa-alias.h (struct pt_solution): Add vars_contains_restrict
field.
* tree-ssa-structalias.c (set_uids_in_ptset): Set vars_contains_restrict
if the var is a restrict tag.
* tree-ssa-alias.c (ptrs_compare_unequal): If vars_contains_restrict
do not disambiguate pointers against it.
(dump_points_to_solution): Re-structure and adjust for new
vars_contains_restrict flag.
* gimple-pretty-print.c (pp_points_to_solution): Likewise.
* gcc.dg/torture/pr71062.c: New testcase.
From-SVN: r236174
|
|
to optimize pointer comparisons)
2016-04-29 Richard Biener <rguenther@suse.de>
PR tree-optimization/13962
PR tree-optimization/65686
* tree-ssa-alias.h (ptrs_compare_unequal): Declare.
* tree-ssa-alias.c (ptrs_compare_unequal): New function
using PTA to compare pointers.
* match.pd: Add pattern for pointer equality compare simplification
using ptrs_compare_unequal.
* gcc.dg/uninit-pr65686.c: New testcase.
From-SVN: r235622
|
|
From-SVN: r232055
|
|
2015-09-29 Richard Biener <rguenther@suse.de>
PR tree-optimization/67170
* tree-ssa-alias.h (get_continuation_for_phi): Adjust
the translate function pointer parameter to get the
bool whether to disambiguate only by reference.
(walk_non_aliased_vuses): Likewise.
* tree-ssa-alias.c (maybe_skip_until): Adjust.
(get_continuation_for_phi_1): Likewise.
(get_continuation_for_phi): Likewise.
(walk_non_aliased_vuses): Likewise.
* tree-ssa-sccvn.c (const_parms): New bitmap.
(vn_reference_lookup_3): Adjust for interface change.
Disambiguate parameters pointing to readonly memory.
(free_scc_vn): Free const_parms.
(run_scc_vn): Initialize const_parms from a fn spec attribute.
* gfortran.dg/pr67170.f90: New testcase.
From-SVN: r228244
|
|
This renames the gimple_statement_base struct to gimple removes the
typedef of gimple_statement_base * to gimple, and then adjusts all of
the places that use the type.
gcc/ChangeLog:
2015-09-19 Trevor Saunders <tbsaunde@tbsaunde.org>
* coretypes.h (gimple): Change typedef to be a forward
declaration.
* gimple.h (gimple_statement_base): rename to gimple.
* (all functions and types using gimple): Adjust.
* *.[ch]: Likewise.
gcc/cp/ChangeLog:
2015-09-19 Trevor Saunders <tbsaunde@tbsaunde.org>
* cp-gimplify.c (gimplify_must_not_throw_expr): Adjust.
From-SVN: r227941
|
|
From-SVN: r219188
|
|
2014-12-09 Richard Biener <rguenther@suse.de>
PR tree-optimization/64193
* tree-ssa-alias.c (walk_non_aliased_vuses): Add valueize parameter
and valueize the VUSE before looking up the def stmt.
* tree-ssa-alias.h (walk_non_aliased_vuses): Adjust prototype.
* tree-ssa-sccvn.c (vn_reference_lookup_pieces): Pass vn_valueize
to walk_non_aliased_vuses.
(vn_reference_lookup): Likewise.
* tree-ssa-dom.c (lookup_avail_expr): Pass NULL as valueize
callback to walk_non_aliased_vuses.
* gcc.dg/tree-ssa/ssa-fre-43.c: New testcase.
From-SVN: r218515
|
|
gcc/ChangeLog:
Merger of git branch "gimple-classes-v2-option-3".
* ChangeLog.gimple-classes: New.
* coretypes.h (struct gcond): Add forward decl.
(struct gdebug): Likewise.
(struct ggoto): Likewise.
(struct glabel): Likewise.
(struct gswitch): Likewise.
(struct gassign): Likewise.
(struct gasm): Likewise.
(struct gcall): Likewise.
(struct gtransaction): Likewise.
(struct greturn): Likewise.
(struct gbind): Likewise.
(struct gcatch): Likewise.
(struct geh_filter): Likewise.
(struct geh_mnt): Likewise.
(struct geh_else): Likewise.
(struct gresx): Likewise.
(struct geh_dispatch): Likewise.
(struct gphi): Likewise.
(struct gtry): Likewise.
(struct gomp_atomic_load): Likewise.
(struct gomp_atomic_store): Likewise.
(struct gomp_continue): Likewise.
(struct gomp_critical): Likewise.
(struct gomp_for): Likewise.
(struct gomp_parallel): Likewise.
(struct gomp_task): Likewise.
(struct gomp_sections): Likewise.
(struct gomp_single): Likewise.
(struct gomp_target): Likewise.
(struct gomp_teams): Likewise.
* doc/gimple.texi (Class hierarchy of GIMPLE statements): Update
for renaming of gimple subclasses.
* gdbhooks.py: Update.
* gimple-iterator.c (gsi_for_phi): New.
(gsi_start_phis): Strengthen return type from gimple_stmt_iterator
to gphi_iterator.
* gimple-iterator.h (struct gphi_iterator): New subclass of
gimple_stmt_iterator.
(gsi_for_phi): New prototype.
(gsi_start_phis): Strengthen return type from gimple_stmt_iterator
to gphi_iterator.
(gsi_next_nonvirtual_phi): Strengthen param from
gimple_stmt_iterator * to gphi_iterator *, and local "phi" from
gimple to gphi *.
* gsstruct.def: Update for renamings of classes.
* gimple.c (gimple_build_return): Strengthen return type from
gimple to greturn *.
(gimple_call_reset_alias_info): Strengthen param to gcall *.
(gimple_build_call_1): Strengthen return type from gimple to
gcall *.
(gimple_build_call_vec): Likewise.
(gimple_build_call): Likewise.
(gimple_build_call_valist): Likewise.
(gimple_build_call_internal_1): Likewise.
(gimple_build_call_internal): Likewise.
(gimple_build_call_internal_vec): Likewise.
(gimple_build_call_from_tree): Likewise.
(gimple_build_assign_stat): Strengthen return type from gimple to
gassign *.
(gimple_build_assign_with_ops): Likewise.
(gimple_build_assign_with_ops): Likewise.
(gimple_build_cond): Strengthen return type from gimple to
gcond *.
(gimple_build_cond_from_tree): Likewise.
(gimple_cond_set_condition_from_tree): Require a gcond *.
(gimple_build_label): Strengthen return type from gimple to
glabel *.
(gimple_build_goto): Strengthen return type from gimple to
ggoto *.
(gimple_build_bind): Strengthen return type from gimple to
gbind *.
(gimple_build_asm_1): Strengthen return type from gimple to
gasm *.
(gimple_build_asm_vec): Likewise.
(gimple_build_catch): Strengthen return type from gimple to
gcatch *.
(gimple_build_eh_filter): Strengthen return type from gimple to
geh_filter *.
(gimple_build_eh_must_not_throw): Strengthen return type from
gimple to geh_mnt *.
(gimple_build_eh_else): Strengthen return type from gimple to
geh_else *.
(gimple_build_try): Update for renaming of gimple_statement_try to
gtry.
(gimple_build_resx): Strengthen return type from gimple to
gresx *.
(gimple_build_switch_nlabels): Strengthen return type from gimple
to gswitch *.
(gimple_build_switch): Likewise.
(gimple_build_eh_dispatch): Strengthen return type from gimple to
geh_dispatch *.
(gimple_build_debug_bind_stat): Strengthen return type from gimple
to gdebug *.
(gimple_build_debug_source_bind_stat): Strengthen return type from
gimple to gdebug *.
(gimple_build_omp_critical): Strengthen return type from gimple to
gomp_critical *.
(gimple_build_omp_for): Strengthen return type from gimple to
gomp_for *.
(gimple_build_omp_parallel): Strengthen return type from gimple to
gomp_parallel *.
(gimple_build_omp_task): Strengthen return type from gimple to
gomp_task *.
(gimple_build_omp_continue): Strengthen return type from gimple to
gomp_continue *.
(gimple_build_omp_sections): Strengthen return type from gimple to
gomp_sections *.
(gimple_build_omp_single): Strengthen return type from gimple to
gomp_single *.
(gimple_build_omp_target): Strengthen return type from gimple to
gomp_target *.
(gimple_build_omp_teams): Strengthen return type from gimple to
gomp_teams *.
(gimple_build_omp_atomic_load): Strengthen return type from gimple
to gomp_atomic_load *.
(gimple_build_omp_atomic_store): Strengthen return type from gimple
to gomp_atomic_store *.
(gimple_build_transaction): Strengthen return type from gimple
to gtransaction *.
(empty_stmt_p): Replace check for GIMPLE_BIND with a dyn_cast.
(gimple_call_fnspec): Require a const gcall *.
(gimple_call_arg_flags): Likewise.
(gimple_call_return_flags): Likewise.
(gimple_set_bb): Add a checked cast.
(gimple_copy): Within the cases, add locals of the appropriate
subclass and use in place of "stmt" and "copy" for typesafety.
(gimple_has_side_effects): Add a checked cast.
(gimple_could_trap_p_1): Likewise.
(gimple_call_copy_skip_args): Require a gcall *, and return one.
(gimple_asm_clobbers_memory_p): Require a const gasm *.
(infer_nonnull_range): Replace a check for GIMPLE_RETURN with a
dyn_cast, introducing local "return_stmt" and using ti in place
of "stmt".
* gimple.h (gimple_vec): Eliminate this typedef.
(struct gimple_statement_call): Rename to...
(struct gcall): ...this.
(struct gimple_statement_bind): Rename to...
(struct gbind): ...this.
(struct gimple_statement_catch): Rename to...
(struct gcatch): ...this.
(struct gimple_statement_eh_filter): Rename to...
(struct geh_filter): ...this.
(struct gimple_statement_eh_else): Rename to...
(struct geh_else): ...this.
(struct gimple_statement_eh_mnt): Rename to...
(struct geh_mnt): ...this.
(struct gimple_statement_phi): Rename to...
(struct gphi): ...this.
(struct gimple_statement_resx): Rename to...
(struct gresx): ...this.
(struct gimple_statement_eh_dispatch): Rename to...
(struct geh_dispatch): ...this.
(struct gimple_statement_try): Rename to...
(struct gtry): ...this.
(struct gimple_statement_asm): Rename to...
(struct gasm): ...this.
(struct gimple_statement_omp_critical): Rename to...
(struct gomp_critical): ...this.
(struct gimple_statement_omp_for): Rename to...
(struct gomp_for): ...this.
(struct gimple_statement_omp_parallel): Rename to...
(struct gomp_parallel): ...this.
(struct gimple_statement_omp_target): Rename to...
(struct gomp_target): ...this.
(struct gimple_statement_omp_task): Rename to...
(struct gomp_task): ...this.
(struct gimple_statement_omp_sections): Rename to...
(struct gomp_sections): ...this.
(struct gimple_statement_omp_continue): Rename to...
(struct gomp_continue): ...this.
(struct gimple_statement_omp_single): Rename to...
(struct gomp_single): ...this.
(struct gimple_statement_omp_teams): Rename to...
(struct gomp_teams): ...this.
(struct gimple_statement_omp_atomic_load): Rename to...
(struct gomp_atomic_load): ...this.
(struct gimple_statement_omp_atomic_store :): Rename to...
(struct gomp_atomic_store :): ...this.
(struct gimple_statement_transaction): Rename to...
(struct gtransaction): ...this.
(struct gcond): New subclass.
(struct gdebug): New subclass.
(struct ggoto): New subclass.
(struct glabel): New subclass.
(struct gswitch): New subclass.
(struct gassign): New subclass.
(struct greturn): New subclass.
(is_a_helper <gimple_statement_asm *>::test): Rename to...
(is_a_helper <gasm *>::test): ...this.
(is_a_helper <gimple_statement_bind *>::test): Rename to...
(is_a_helper <gbind *>::test): ...this.
(is_a_helper <gassign *>::test): New.
(is_a_helper <gimple_statement_call *>::test): Rename to...
(is_a_helper <gcall *>::test): ...this.
(is_a_helper <gimple_statement_catch *>::test): Rename to...
(is_a_helper <gcatch *>::test): ...this.
(is_a_helper <gimple_statement_resx *>::test): Rename to...
(is_a_helper <gresx *>::test): ...this.
(is_a_helper <gcond *>::test): New.
(is_a_helper <gdebug *>::test): New.
(is_a_helper <ggoto *>::test): New.
(is_a_helper <glabel *>::test): New.
(is_a_helper <gimple_statement_eh_dispatch *>::test): Rename to...
(is_a_helper <geh_dispatch *>::test): ...this.
(is_a_helper <gimple_statement_eh_else *>::test): Rename to...
(is_a_helper <geh_else *>::test): ...this.
(is_a_helper <gimple_statement_eh_filter *>::test): Rename to...
(is_a_helper <geh_filter *>::test): ...this.
(is_a_helper <gimple_statement_eh_mnt *>::test): Rename to...
(is_a_helper <geh_mnt *>::test): ...this.
(is_a_helper <gimple_statement_omp_atomic_load *>::test): Rename to...
(is_a_helper <gomp_atomic_load *>::test): ...this.
(is_a_helper <gimple_statement_omp_atomic_store *>::test): Rename to...
(is_a_helper <gomp_atomic_store *>::test): ...this.
(is_a_helper <gimple_statement_omp_continue *>::test): Rename to...
(is_a_helper <gomp_continue *>::test): ...this.
(is_a_helper <gimple_statement_omp_critical *>::test): Rename to...
(is_a_helper <gomp_critical *>::test): ...this.
(is_a_helper <gimple_statement_omp_for *>::test): Rename to...
(is_a_helper <gomp_for *>::test): ...this.
(is_a_helper <gimple_statement_omp_parallel *>::test): Rename to...
(is_a_helper <gomp_parallel *>::test): ...this.
(is_a_helper <gimple_statement_omp_target *>::test): Rename to...
(is_a_helper <gomp_target *>::test): ...this.
(is_a_helper <gimple_statement_omp_sections *>::test): Rename to...
(is_a_helper <gomp_sections *>::test): ...this.
(is_a_helper <gimple_statement_omp_single *>::test): Rename to...
(is_a_helper <gomp_single *>::test): ...this.
(is_a_helper <gimple_statement_omp_teams *>::test): Rename to...
(is_a_helper <gomp_teams *>::test): ...this.
(is_a_helper <gimple_statement_omp_task *>::test): Rename to...
(is_a_helper <gomp_task *>::test): ...this.
(is_a_helper <gimple_statement_phi *>::test): Rename to...
(is_a_helper <gphi *>::test): ...this.
(is_a_helper <gimple_statement_transaction *>::test): Rename to...
(is_a_helper <gtransaction *>::test): ...this.
(is_a_helper <greturn *>::test): New.
(is_a_helper <gswitch *>::test): New.
(is_a_helper <gimple_statement_try *>::test): Rename to...
(is_a_helper <gtry *>::test): ...this.
(is_a_helper <const gimple_statement_asm *>::test): Rename to...
(is_a_helper <const gasm *>::test): ...this.
(is_a_helper <const gimple_statement_bind *>::test): Rename to...
(is_a_helper <const gbind *>::test): ...this.
(is_a_helper <const gimple_statement_call *>::test): Rename to...
(is_a_helper <const gcall *>::test): ...this.
(is_a_helper <const gimple_statement_catch *>::test): Rename to...
(is_a_helper <const gcatch *>::test): ...this.
(is_a_helper <const gimple_statement_resx *>::test): Rename to...
(is_a_helper <const gresx *>::test): ...this.
(is_a_helper <const gimple_statement_eh_dispatch *>::test): Rename to...
(is_a_helper <const geh_dispatch *>::test): ...this.
(is_a_helper <const gimple_statement_eh_filter *>::test): Rename to...
(is_a_helper <const geh_filter *>::test): ...this.
(is_a_helper <const gimple_statement_omp_atomic_load *>::test):
Rename to...
(is_a_helper <const gomp_atomic_load *>::test): ...this.
(is_a_helper <const gimple_statement_omp_atomic_store *>::test):
Rename to...
(is_a_helper <const gomp_atomic_store *>::test): ...this.
(is_a_helper <const gimple_statement_omp_continue *>::test):
Rename to...
(is_a_helper <const gomp_continue *>::test): ...this.
(is_a_helper <const gimple_statement_omp_critical *>::test):
Rename to...
(is_a_helper <const gomp_critical *>::test): ...this.
(is_a_helper <const gimple_statement_omp_for *>::test): Rename to...
(is_a_helper <const gomp_for *>::test): ...this.
(is_a_helper <const gimple_statement_omp_parallel *>::test):
Rename to...
(is_a_helper <const gomp_parallel *>::test): ...this.
(is_a_helper <const gimple_statement_omp_target *>::test): Rename to...
(is_a_helper <const gomp_target *>::test): ...this.
(is_a_helper <const gimple_statement_omp_sections *>::test):
Rename to...
(is_a_helper <const gomp_sections *>::test): ...this.
(is_a_helper <const gimple_statement_omp_single *>::test): Rename to...
(is_a_helper <const gomp_single *>::test): ...this.
(is_a_helper <const gimple_statement_omp_teams *>::test): Rename to...
(is_a_helper <const gomp_teams *>::test): ...this.
(is_a_helper <const gimple_statement_omp_task *>::test): Rename to...
(is_a_helper <const gomp_task *>::test): ...this.
(is_a_helper <const gimple_statement_phi *>::test): Rename to...
(is_a_helper <const gphi *>::test): ...this.
(is_a_helper <const gimple_statement_transaction *>::test): Rename to...
(is_a_helper <const gtransaction *>::test): ...this.
(gimple_build_return): Strengthen return type to greturn *.
(gimple_call_reset_alias_info): Require a gcall *.
(gimple_build_call_vec): Return a gcall *.
(gimple_build_call): Likewise.
(gimple_build_call_valist): Likewise.
(gimple_build_call_internal): Likewise.
(gimple_build_call_internal_vec): Likewise.
(gimple_build_call_from_tree): Likewise.
(gimple_build_assign_stat): Return a gassign *.
(gimple_build_assign_with_ops): Likewise.
(gimple_build_cond): Return a gcond *.
(gimple_build_cond_from_tree): Likewise.
(gimple_cond_set_condition_from_tree): Require a gcond *.
(gimple_build_label): Return a glabel *.
(gimple_build_goto): Return a ggoto *.
(gimple_build_bind): Return a gbind *.
(gimple_build_asm_vec): Return a gasm *.
(gimple_build_catch): Return a gcatch *.
(gimple_build_eh_filter): Return a geh_filter *.
(gimple_build_eh_must_not_throw): Return a geh_mnt *.
(gimple_build_eh_else): Return a geh_else *.
(gimple_build_try): Return a gtry *.
(gimple_build_resx): Return a gresx *.
(gimple_build_switch_nlabels): Return a gswitch *.
(gimple_build_switch): Return a gswitch *.
(gimple_build_eh_dispatch): Return a geh_dispatch *.
(gimple_build_debug_bind_stat): Return a gdebug *.
(gimple_build_debug_source_bind_stat): Return a gdebug *.
(gimple_build_omp_critical): Return a gomp_critical *.
(gimple_build_omp_for): Return a gomp_for *.
(gimple_build_omp_parallel): Return a gomp_parallel *.
(gimple_build_omp_task): Return a gomp_task *.
(gimple_build_omp_continue): Return a gomp_continue *.
(gimple_build_omp_sections): Return a gomp_sections *.
(gimple_build_omp_single): Return a gomp_single *.
(gimple_build_omp_target): Return a gomp_target *.
(gimple_build_omp_teams): Return a gomp_teams *.
(gimple_build_omp_atomic_load): Return a gomp_atomic_load *.
(gimple_build_omp_atomic_store): Return a gomp_atomic_store *.
(gimple_build_transaction): Return a gtransaction *.
(gimple_call_arg_flags): Require a const gcall *.
(gimple_call_return_flags): Likewise.
(gimple_call_copy_skip_args): Require and return a gcall *.
(gimple_asm_clobbers_memory_p): Require a const gasm *.
(gimple_seq_first_stmt_as_a_bind): New.
(gimple_assign_nontemporal_move_p): Require a const gassign *
rather than a const_gimple.
(gimple_call_internal_fn): Update for renaming to gcall.
(gimple_call_fntype): Likewise.
(gimple_call_set_fntype): Require a gcall * rather than a gimple.
(gimple_call_set_fn): Likewise.
(gimple_call_set_internal_fn): Likewise.
(gimple_call_set_chain): Likewise.
(gimple_call_set_tail): Likewise.
(gimple_call_tail_p): Likewise.
(gimple_call_set_return_slot_opt): Likewise.
(gimple_call_return_slot_opt_p): Likewise.
(gimple_call_set_from_thunk): Likewise.
(gimple_call_from_thunk_p): Likewise.
(gimple_call_set_va_arg_pack): Likewise.
(gimple_call_va_arg_pack_p): Likewise.
(gimple_call_set_nothrow): Likewise.
(gimple_call_nothrow_p): Likewise.
(gimple_call_set_alloca_for_var): Likewise.
(gimple_call_alloca_for_var_p): Likewise.
(gimple_call_use_set): Likewise.
(gimple_call_clobber_set): Likewise.
(gimple_call_return_type): Require a const gcall * rather than a
const_gimple.
(gimple_call_chain_ptr): Likewise.
(gimple_call_copy_flags): Require a pair of gcall *.
(gimple_cond_set_code): Require a gcond * rather than a gimple
(gimple_cond_set_lhs): Likewise.
(gimple_cond_set_rhs): Likewise.
(gimple_cond_set_true_label): Likewise.
(gimple_cond_set_false_label): Likewise.
(gimple_cond_make_false): Likewise.
(gimple_cond_make_true): Likewise.
(gimple_cond_lhs_ptr): Require a const gcond * rather than a
const_gimple.
(gimple_cond_rhs_ptr): Likewise.
(gimple_cond_true_label): Likewise.
(gimple_cond_false_label): Likewise.
(gimple_cond_true_p): Likewise.
(gimple_cond_false_p): Likewise.
(gimple_cond_set_condition): Likewise.
(gimple_label_label): Require a const glabel *.
(gimple_label_set_label): Require a glabel *.
(gimple_goto_set_dest): Require a ggoto *.
(gimple_bind_vars): Require a const gbind *.
(gimple_bind_block): Likewise.
(gimple_bind_set_vars): Require a gbind *.
(gimple_bind_append_vars): Likewise.
(gimple_bind_body_ptr): Likewise.
(gimple_bind_body): Likewise.
(gimple_bind_set_body): Likewise.
(gimple_bind_add_stmt): Likewise.
(gimple_bind_add_seq): Likewise.
(gimple_bind_set_block): Likewise.
(gimple_asm_ninputs): Require a const gasm *.
(gimple_asm_noutputs): Likewise.
(gimple_asm_nclobbers): Likewise.
(gimple_asm_nlabels): Likewise.
(gimple_asm_input_op): Likewise.
(gimple_asm_input_op_ptr): Likewise.
(gimple_asm_output_op): Likewise.
(gimple_asm_output_op_ptr): Likewise.
(gimple_asm_clobber_op): Likewise.
(gimple_asm_label_op): Likewise.
(gimple_asm_string): Likewise.
(gimple_asm_volatile_p): Likewise.
(gimple_asm_input_p): Likewise.
(gimple_asm_set_input_op): Require a gasm *.
(gimple_asm_set_output_op): Likewise.
(gimple_asm_set_clobber_op): Likewise.
(gimple_asm_set_label_op): Likewise.
(gimple_asm_set_volatile): Likewise.
(gimple_asm_set_input): Likewise.
(gimple_catch_types): Require a const gcatch *.
(gimple_catch_types_ptr): Require a gcatch *.
(gimple_catch_handler_ptr): Likewise.
(gimple_catch_handler): Likewise.
(gimple_catch_set_types): Likewise.
(gimple_catch_set_handler): Likewise.
(gimple_eh_filter_types): Update for renaming of subclass to
geh_filter.
(gimple_eh_filter_types_ptr): Likewise.
(gimple_eh_filter_failure_ptr): Likewise.
(gimple_eh_filter_set_types): Require a geh_filter *.
(gimple_eh_filter_set_failure): Likewise.
(gimple_eh_must_not_throw_fndecl): Require a geh_mnt *.
(gimple_eh_must_not_throw_set_fndecl): Likewise.
(gimple_eh_else_n_body_ptr): Require a geh_else *.
(gimple_eh_else_n_body): Likewise.
(gimple_eh_else_e_body_ptr): Likewise.
(gimple_eh_else_e_body): Likewise.
(gimple_eh_else_set_n_body): Likewise.
(gimple_eh_else_set_e_body): Likewise.
(gimple_try_set_kind): Require a gtry *.
(gimple_try_set_catch_is_cleanup): Likewise.
(gimple_try_set_eval): Likewise.
(gimple_try_set_cleanup): Likewise.
(gimple_try_eval_ptr): Update for renaming of subclass to gtry.
(gimple_try_cleanup_ptr): Likewise.
(gimple_phi_capacity): Update for renaming of subclass to gphi.
(gimple_phi_num_args): Likewise.
(gimple_phi_result): Likewise.
(gimple_phi_result_ptr): Likewise.
(gimple_phi_arg): Likewise.
(gimple_phi_set_result): Require a gphi *.
(gimple_phi_set_arg): Likewise.
(gimple_phi_arg_def_ptr): Likewise.
(gimple_phi_arg_edge): Likewise.
(gimple_phi_arg_location): Likewise.
(gimple_phi_arg_location_from_edge): Likewise.
(gimple_phi_arg_set_location): Likewise.
(gimple_phi_arg_has_location): Likewise.
(gimple_resx_region): Require a const gresx *.
(gimple_resx_set_region): Require a gresx *.
(gimple_eh_dispatch_region): Require a const geh_dispatch *.
(gimple_eh_dispatch_set_region): Require a geh_dispatch *.
(gimple_switch_num_labels): Require a const gswitch *.
(gimple_switch_set_num_labels): Likewise.
(gimple_switch_index): Likewise.
(gimple_switch_index_ptr): Likewise.
(gimple_switch_label): Likewise.
(gimple_switch_default_label): Likewise.
(gimple_switch_set_index): Require a gswitch *.
(gimple_switch_set_label): Likewise.
(gimple_switch_set_default_label): Likewise.
(gimple_omp_critical_name): Require a const gomp_critical *.
(gimple_omp_critical_name_ptr): Require a gomp_critical *.
(gimple_omp_critical_set_name): Likewise.
(gimple_omp_for_set_kind): Require a gomp_for *.
(gimple_omp_for_set_combined_p): Likewise.
(gimple_omp_for_set_combined_into_p): Likewise.
(gimple_omp_for_clauses): Update for renaming of subclass to
gomp_for.
(gimple_omp_for_clauses_ptr): Likewise.
(gimple_omp_for_set_clauses): Likewise.
(gimple_omp_for_collapse): Likewise.
(gimple_omp_for_index): Likewise.
(gimple_omp_for_index_ptr): Likewise.
(gimple_omp_for_set_index): Likewise.
(gimple_omp_for_initial): Likewise.
(gimple_omp_for_initial_ptr): Likewise.
(gimple_omp_for_set_initial): Likewise.
(gimple_omp_for_final): Likewise.
(gimple_omp_for_final_ptr): Likewise.
(gimple_omp_for_set_final): Likewise.
(gimple_omp_for_incr): Likewise.
(gimple_omp_for_incr_ptr): Likewise.
(gimple_omp_for_set_incr): Likewise.
(gimple_omp_for_pre_body): Likewise.
(gimple_omp_for_set_pre_body): Likewise.
(gimple_omp_parallel_clauses): Update for renaming of subclass to
gomp_parallel.
(gimple_omp_parallel_clauses_ptr): Require a gomp_parallel *.
(gimple_omp_parallel_set_clauses): Likewise.
(gimple_omp_parallel_child_fn_ptr): Likewise.
(gimple_omp_parallel_set_child_fn): Likewise.
(gimple_omp_parallel_data_arg_ptr): Likewise.
(gimple_omp_parallel_set_data_arg): Likewise.
(gimple_omp_parallel_child_fn): Require a const gomp_parallel *.
(gimple_omp_parallel_data_arg): Likewise.
(gimple_omp_task_clauses): Update for renaming of subclass to
gomp_task.
(gimple_omp_task_clauses_ptr): Likewise.
(gimple_omp_task_set_clauses): Likewise.
(gimple_omp_task_child_fn): Likewise.
(gimple_omp_task_child_fn_ptr): Likewise.
(gimple_omp_task_set_child_fn): Likewise.
(gimple_omp_task_data_arg): Likewise.
(gimple_omp_task_data_arg_ptr): Likewise.
(gimple_omp_task_set_data_arg): Likewise.
(gimple_omp_taskreg_clauses): Whitespace fixes.
(gimple_omp_taskreg_clauses_ptr): Likewise.
(gimple_omp_taskreg_set_clauses): Likewise.
(gimple_omp_taskreg_child_fn): Likewise.
(gimple_omp_taskreg_child_fn_ptr): Likewise.
(gimple_omp_taskreg_set_child_fn): Likewise.
(gimple_omp_taskreg_data_arg): Likewise.
(gimple_omp_taskreg_data_arg_ptr): Likewise.
(gimple_omp_taskreg_set_data_arg): Likewise.
(gimple_omp_task_copy_fn): Update for renaming of subclass to
gomp_task.
(gimple_omp_task_copy_fn_ptr): Likewise.
(gimple_omp_task_set_copy_fn): Likewise.
(gimple_omp_task_arg_size): Likewise.
(gimple_omp_task_arg_size_ptr): Likewise.
(gimple_omp_task_set_arg_size): Likewise.
(gimple_omp_task_arg_align): Likewise.
(gimple_omp_task_arg_align_ptr): Likewise.
(gimple_omp_task_set_arg_align): Likewise.
(gimple_omp_single_clauses): Update for renaming of subclass to
gomp_single.
(gimple_omp_single_clauses_ptr): Likewise.
(gimple_omp_single_set_clauses): Likewise.
(gimple_omp_target_clauses): Update for renaming of subclass to
gomp_target.
(gimple_omp_target_clauses_ptr): Likewise.
(gimple_omp_target_set_clauses): Require a gomp_target *.
(gimple_omp_target_set_kind): Likewise.
(gimple_omp_target_child_fn_ptr): Likewise.
(gimple_omp_target_set_child_fn): Likewise.
(gimple_omp_target_data_arg_ptr): Likewise.
(gimple_omp_target_set_data_arg): Likewise.
(gimple_omp_target_child_fn): Require a const gomp_target *.
(gimple_omp_target_data_arg): Likewise.
(gimple_omp_teams_clauses): Update for renaming of subclass to
gomp_teams.
(gimple_omp_teams_clauses_ptr): Likewise.
(gimple_omp_teams_set_clauses): Require a gomp_teams *.
(gimple_omp_sections_clauses): Update for renaming of subclass to
gomp_sections.
(gimple_omp_sections_clauses_ptr): Likewise.
(gimple_omp_sections_set_clauses): Likewise.
(gimple_omp_sections_control): Likewise.
(gimple_omp_sections_control_ptr): Likewise.
(gimple_omp_sections_set_control): Likewise.
(gimple_omp_for_set_cond): Likewise.
(gimple_omp_for_cond): Likewise.
(gimple_omp_atomic_store_set_val): Require a gomp_atomic_store *.
(gimple_omp_atomic_store_val_ptr): Likewise.
(gimple_omp_atomic_load_set_lhs): Likewise.
(gimple_omp_atomic_store_val): Require a const gomp_atomic_store *.
(gimple_omp_atomic_load_lhs): Likewise.
(gimple_omp_atomic_load_rhs): Likewise.
(gimple_omp_atomic_load_lhs_ptr): Require a gomp_atomic_load *.
(gimple_omp_atomic_load_set_rhs): Likewise.
(gimple_omp_atomic_load_rhs_ptr): Likewise.
(gimple_omp_continue_control_def): Require a const gomp_continue *.
(gimple_omp_continue_control_use): Likewise.
(gimple_omp_continue_control_def_ptr): Require a gomp_continue *.
(gimple_omp_continue_set_control_def): Likewise.
(gimple_omp_continue_control_use_ptr): Likewise.
(gimple_omp_continue_set_control_use): Likewise.
(gimple_transaction_body_ptr): Require a gtransaction *.
(gimple_transaction_body): Likewise.
(gimple_transaction_label_ptr): Likewise.
(gimple_transaction_label): Require a const gtransaction *.
(gimple_transaction_subcode): Likewise.
(gimple_transaction_set_body): Require a gtransaction *.
(gimple_transaction_set_label): Likewise.
(gimple_transaction_set_subcode): Likewise.
(gimple_return_retval_ptr): Require a const greturn *.
(gimple_return_retval): Likewise.
(gimple_return_set_retval): Require a greturn *.
(gimple_expr_type): Introduce local "call_stmt" and use in place of
"stmt" for typesafety.
* asan.c: Use gimple subclasses.
* auto-profile.c: Likewise.
* builtins.c: Likewise.
* builtins.h: Likewise.
* cfgexpand.c: Likewise.
* cfgloop.c: Likewise.
* cfgloopmanip.c: Likewise.
* cgraph.c: Likewise.
* cgraph.h: Likewise.
* cgraphbuild.c: Likewise.
* cgraphclones.c: Likewise.
* cgraphunit.c: Likewise.
* expr.h: Likewise.
* gimple-builder.c: Likewise.
* gimple-builder.h: Likewise.
* gimple-fold.c: Likewise.
* gimple-low.c: Likewise.
* gimple-pretty-print.c: Likewise.
* gimple-ssa-isolate-paths.c: Likewise.
* gimple-ssa-strength-reduction.c: Likewise.
* gimple-streamer-in.c: Likewise.
* gimple-streamer-out.c: Likewise.
* gimple-walk.c: Likewise.
* gimplify-me.c: Likewise.
* gimplify.c: Likewise.
* gimplify.h: Likewise.
* graphite-scop-detection.c: Likewise.
* graphite-sese-to-poly.c: Likewise.
* internal-fn.c: Likewise.
* internal-fn.def:: Likewise.
* internal-fn.h: Likewise.
* ipa-icf-gimple.c: Likewise.
* ipa-icf-gimple.h: Likewise.
* ipa-icf.c: Likewise.
* ipa-inline-analysis.c: Likewise.
* ipa-prop.c: Likewise.
* ipa-prop.h: Likewise.
* ipa-pure-const.c: Likewise.
* ipa-split.c: Likewise.
* lto-streamer-in.c: Likewise.
* lto-streamer-out.c: Likewise.
* omp-low.c: Likewise.
* predict.c: Likewise.
* sanopt.c: Likewise.
* sese.c: Likewise.
* ssa-iterators.h: Likewise.
* stmt.c: Likewise.
* trans-mem.c: Likewise.
* tree-call-cdce.c: Likewise.
* tree-cfg.c: Likewise.
* tree-cfg.h: Likewise.
* tree-cfgcleanup.c: Likewise.
* tree-chkp.c: Likewise.
* tree-chkp.h: Likewise.
* tree-complex.c: Likewise.
* tree-data-ref.c: Likewise.
* tree-dfa.c: Likewise.
* tree-eh.c: Likewise.
* tree-eh.h: Likewise.
* tree-emutls.c: Likewise.
* tree-if-conv.c: Likewise.
* tree-inline.c: Likewise.
* tree-inline.h: Likewise.
* tree-into-ssa.c: Likewise.
* tree-into-ssa.h: Likewise.
* tree-loop-distribution.c: Likewise.
* tree-nrv.c: Likewise.
* tree-object-size.c: Likewise.
* tree-outof-ssa.c: Likewise.
* tree-parloops.c: Likewise.
* tree-phinodes.c: Likewise.
* tree-phinodes.h: Likewise.
* tree-predcom.c: Likewise.
* tree-profile.c: Likewise.
* tree-scalar-evolution.c: Likewise.
* tree-scalar-evolution.h
* tree-sra.cn_function):
* tree-ssa-alias.c: Likewise.
* tree-ssa-alias.h: Likewise.
* tree-ssa-ccp.c: Likewise.
* tree-ssa-coalesce.c: Likewise.
* tree-ssa-copy.c: Likewise.
* tree-ssa-copyrename.c: Likewise.
* tree-ssa-dce.c: Likewise.
* tree-ssa-dom.c: Likewise.
* tree-ssa-forwprop.c: Likewise.
* tree-ssa-ifcombine.c: Likewise.
* tree-ssa-live.c: 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-loop-unswitch.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-propagate.h: Likewise.
* tree-ssa-reassoc.c: Likewise.
* tree-ssa-sccvn.c: Likewise.
* tree-ssa-sccvn.h: Likewise.
* tree-ssa-sink.c: Likewise.
* tree-ssa-strlen.c
* tree-ssa-structalias.c
* tree-ssa-tail-merge.c: Likewise.
* tree-ssa-ter.c: Likewise.
* tree-ssa-threadedge.c: Likewise.
* tree-ssa-threadedge.h: Likewise.
* tree-ssa-threadupdate.c: Likewise.
* tree-ssa-uncprop.c: Likewise.
* tree-ssa-uninit.c: Likewise.
* tree-ssa.c: Likewise.
* tree-stdarg.c: Likewise.
* tree-switch-conversion.c: Likewise.
* tree-tailcall.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.h: Likewise.
* tree-vrp.c: Likewise.
* tree.c: Likewise.
* ubsan.c: Likewise.
* value-prof.c: Likewise.
* value-prof.h: Likewise.
* vtable-verify.c: Likewise.
gcc/c-family/ChangeLog:
Merger of git branch "gimple-classes-v2-option-3".
* ChangeLog.gimple-classes: New.
* c-gimplify.c (add_block_to_enclosing): Strengthen local "stack"
from being just a vec<gimple> to a vec<gbind *>.
gcc/java/ChangeLog:
Merger of git branch "gimple-classes-v2-option-3".
* ChangeLog.gimple-classes: New.
* java-gimplify.c (java_gimplify_block): Strengthen local "outer"
from gimple to gbind *.
From-SVN: r217787
|
|
* cgraph.c (cgraph_node::release_body): New argument keep_arguments
introduced.
* cgraph.h: Likewise.
* cgraphunit.c (cgraph_node::create_wrapper): Usage of new argument introduced.
* ipa-utils.h (polymorphic_type_binfo_p): Safe check for binfos created by Java.
* tree-ssa-alias.c (ao_ref_base_alias_set): Static function transformed to global.
* tree-ssa-alias.h: Likewise.
From-SVN: r215640
|
|
write-only)
2014-08-21 Marc Glisse <marc.glisse@inria.fr>
PR tree-optimization/62112
gcc/
* gimple-iterator.c (gsi_replace): Return whether EH cleanup is needed.
* gimple-iterator.h (gsi_replace): Return bool.
* tree-ssa-alias.c (ref_may_alias_global_p_1): New helper, code
moved from ref_may_alias_global_p.
(ref_may_alias_global_p, refs_may_alias_p, ref_maybe_used_by_stmt_p):
New overloads.
(ref_maybe_used_by_call_p): Take ao_ref* instead of tree.
(stmt_kills_ref_p_1): Rename...
(stmt_kills_ref_p): ... to this.
* tree-ssa-alias.h (ref_may_alias_global_p, ref_maybe_used_by_stmt_p,
stmt_kills_ref_p): Declare.
* tree-ssa-dse.c (dse_possible_dead_store_p): New argument, use it.
Move the self-assignment case...
(dse_optimize_stmt): ... here. Handle builtin calls. Remove dead code.
gcc/testsuite/
* gcc.dg/tree-ssa/pr62112-1.c: New file.
* gcc.dg/tree-ssa/pr62112-2.c: Likewise.
* gcc.c-torture/execute/pr35472.c: Add noclone attribute.
* gcc.c-torture/execute/20071219-1.c: Likewise.
From-SVN: r214262
|
|
* tree-ssa-alias.c (walk_aliased_vdefs_1): Add FUNCTION_ENTRY_REACHED
parameter.
(walk_aliased_vdefs): Likewise.
* tree-ssa-alias.h (walk_aliased_vdefs): Likewise.
* ipa-prop.c (stmt_may_be_vtbl_ptr_store): Skip clobbers
(detect_type_change_from_memory_writes): Check if entry was reached.
From-SVN: r212351
|
|
2014-05-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/61034
* tree-ssa-alias.c (call_may_clobber_ref_p_1): Export.
(maybe_skip_until): Use translate to take into account
lattices when trying to do disambiguations.
(get_continuation_for_phi_1): Likewise.
(get_continuation_for_phi): Adjust for added translate
arguments.
(walk_non_aliased_vuses): Likewise.
* tree-ssa-alias.h (get_continuation_for_phi): Adjust
prototype.
(walk_non_aliased_vuses): Likewise.
(call_may_clobber_ref_p_1): Declare.
* tree-ssa-sccvn.c (vn_reference_lookup_3): Also
disambiguate against calls. Stop early if we are
only supposed to disambiguate.
* tree-ssa-pre.c (translate_vuse_through_block): Adjust.
* g++.dg/tree-ssa/pr61034.C: New testcase.
From-SVN: r210160
|
|
From-SVN: r206289
|
|
* gcc/cgraph.h (cgraph_node_set_iterator, varpool_node_set_iterator):
Remove typedef.
(cgraph_inline_failed_enum, cgraph_inline_failed_t): Remove typedef and
rename to cgraph_inline_failed_t.
* gcc/tree-ssa-alias.h (ao_ref_s, ao_ref): Remove typedef and rename
to ao_ref.
* gcc/reload.h (reg_equivs_s, reg_equivs_t): Remove typedef and rename
to reg_equivs_t.
* gcc/conditions.h (CC_STATUS): Remove typedef.
* gcc/bitmap.h (bitmap_obstack): Remove typedef.
(bitmap_element_def, bitmap_element): Remove typedef and rename to
bitmap_element.
(bitmap_head_def, bitmap_head): Remove typedef and rename to
bitmap_head.
(bitmap_iterator): Remove typedef.
* gcc/target.h (cumulative_args_t, print_switch_type,
secondary_reload_info): Remove typedef.
* gcc/dwarf2out.h (dw_cfi_oprnd_struct, dw_cfi_oprnd): Remove
dw_cfi_oprnd_struct alias.
(dw_cfi_struct, dw_cfi_node): Remove typedef and rename to dw_cfi_node.
(dw_fde_struct, dw_fde_node): Remove typedef and rename to dw_fde_node.
(cfa_loc, dw_cfa_location): Remove typedef and rename to
dw_cfa_location.
(dw_vec_struct, dw_vec_const): Remove typedef and rename to
dw_vec_const.
(dw_val_struct, dw_val_node): Remove typedef and rename to dw_val_node.
(dw_loc_descr_struct, dw_loc_descr_node): Remove typedef and rename to
dw_loc_descr_node.
* gcc/params.h (param_info, compiler_param): Remove typedef.
* gcc/opts.h (cl_deferred_param): Remove typedef.
* gcc/sreal.h (sreal): Remove typedef.
* gcc/ddg.h (dep_type, dep_data_type): Remove typedef.
* gcc/graphite-clast-to-gimple.h (cloog_prog_clast, bb_pbb_def): Remove
typedef.
* gcc/lto-streamer.h (lto_decl_stream_e_t, lto_encoder_entry,
lto_symtab_encoder_iterator, res_pair): Remove typedef.
* gcc/tree-affine.h (affine_tree_combination, aff_tree): Remove typedef
and rename to aff_tree.
* gcc/sched-int.h (region): Remove typedef.
* gcc/diagnostic.h (diagnostic_info,
diagnostic_classification_change_t): Remove typedef.
* gcc/tree-ssa-loop.h (affine_iv_d): Remove typedef and rename to
affine_iv.
* gcc/sbitmap.h (sbitmap_iterator): Remove typedef.
* gcc/ssa-iterators.h (immediate_use_iterator_d, imm_use_iterator):
Remove typedef and rename to imm_use_iterator.
(ssa_operand_iterator_d, ssa_op_iter): Remove typedef and rename to
ssa_op_iter.
* gcc/ggc-internal.h (ggc_statistics): Remove typedef.
* gcc/cselib.h (cselib_val_struct, cselib_val): Remove typedef and
rename to cselib_val.
* gcc/tree-core.h (alias_pair): Remove typedef.
(constructor_elt_d, constructor_elt): Remove typedef and rename to
constructor_elt.
(ssa_use_operand_d, ssa_use_operand_t): Remove typedef and rename to
ssa_use_operand_t.
* gcc/graphite-sese-to-poly.h (base_alias_pair): Remove typedef.
* gcc/tree-data-ref.h (conflict_function): Remove typedef.
* gcc/tree-inline.h (copy_body_data): Remove typedef.
* gcc/ipa-inline.h (condition, size_time_entry, inline_param_summary_t,
edge_growth_cache_entry): Remove typedef.
* gcc/regrename.h (operand_rr_info, insn_rr_info): Remove typedef.
* gcc/gimple-iterator.h (gimple_stmt_iterator_d, gimple_stmt_iterator):
Remove typedef and rename to gimple_stmt_iterator.
* gcc/basic-block.h (ce_if_block, ce_if_block_t): Remove typedef and
rename to ce_if_block.
(edge_iterator): Remove typedef.
* gcc/ipa-prop.h (ipa_agg_jf_item, ipa_agg_jf_item_t): Remove typedef
and rename to ipa_agg_jf_item.
(ipa_agg_jump_function_t, ipa_param_descriptor_t, ipa_node_params_t,
ipa_parm_adjustment_t): Remove typedef.
(ipa_jump_func, ipa_jump_func_t): Remove typedef and rename to
ipa_jump_func.
(ipa_edge_args, ipa_edge_args_t): Remove typedef and rename to
ipa_edge_args.
* gcc/gcov-io.h (gcov_bucket_type): Remove typedef.
(gcov_working_set_info, gcov_working_set_t): Remove typedef and rename
to gcov_working_set_t.
* gcc/ira-int.h (minmax_set_iterator, ira_allocno_iterator,
ira_object_iterator, ira_allocno_object_iterator, ira_pref_iterator,
ira_copy_iterator, ira_object_conflict_iterator): Remove typedef.
* gcc/tree-iterator.h (tree_stmt_iterator): Remove typedef.
* gcc/rtl.h (addr_diff_vec_flags, mem_attrs, reg_attrs,
replace_label_data): Remove typedef.
(rtunion_def, rtunion): Remove typedef and rename to rtunion.
* gcc/hard-reg-set.h (hard_reg_set_iterator): Remove typedef.
* gcc/sel-sched-ir.h (_list_iterator, sel_global_bb_info_def,
sel_region_bb_info_def, succ_iterator): Remove typedef.
(deps_where_def, deps_where_t): Remove typedef and rename to
deps_where_t.
* gcc/coretypes.h: Adapt forward declarations.
* gcc/tree-scalar-evolution.h: Likewise.
* gcc/tree-ssa-address.h: Likewise.
* gcc/tree-ssa-operands.h: Likewise.
* gcc/function.h: Likewise.
* gcc/config/frv/frv-protos.h: Likewise.
* gcc/targhooks.h: Likewise.
* gcc/basic_block.h: Likewise.
* gcc/rtl.def: Adapt documentation.
* gcc/doc/tm.texi: Likewise.
* gcc/ipa-cp.c: Adapt uses.
* gcc/bitmap.c: Likewise.
* gcc/dwarf2out.c: Likewise.
* gcc/target.def: Likewise.
* gcc/ipa-inline-analysis.c: Likewise.
* gcc/dwarf2cfi.c: Likewise.
* gcc/tree-ssa-loop-ivopts.c: Likewise.
* gcc/lto-cgraph.c: Likewise.
* gcc/config/frv/frv.c: Likewise.
* gcc/ifcvt.c: Likewise.
* gcc/ipa-prop.c: Likewise.
From-SVN: r205863
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|
objects from pointed to by arguments)
2013-11-15 Richard Biener <rguenther@suse.de>
PR tree-optimization/50262
* tree-ssa-alias.h (struct pt_solution): Split
vars_contains_global into vars_contains_nonlocal,
vars_contains_escaped and vars_contains_escaped_heap.
* tree-ssa-structalias.c (label_visit): Expand comment.
(handle_lhs_call): Adjust comment.
(set_uids_in_ptset): Set the new flags appropriately.
(pt_solution_set): Adjust.
(pt_solution_set_var): Likewise.
(pt_solution_ior_into): Likewise.
(pt_solution_includes_global): Likewise.
(pt_solutions_intersect_1): Optimize escaped handling.
(compute_points_to_sets): Remove heap variable globalization.
(ipa_escaped_pt): Adjust initializer.
(pass_data_ipa_pta): Do not run TODO_update_ssa.
* gimple-pretty-print.c (pp_points_to_solution): Print split
flags.
* tree-ssa-alias.c (dump_points_to_solution): Likewise.
* gcc.dg/tree-ssa/alias-28.c: New testcase.
* gcc.dg/strlenopt-1.c: Adjust.
* gcc.dg/strlenopt-1f.c: Likewise.
From-SVN: r204845
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2013-11-05 Marc Glisse <marc.glisse@inria.fr>
gcc/
* tree-ssa-alias.h (ranges_overlap_p): Handle negative offsets.
* tree-ssa-alias.c (ao_ref_init_from_ptr_and_size): Likewise.
gcc/testsuite/
* gcc.dg/tree-ssa/alias-26.c: New file.
From-SVN: r204388
|
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* tree-flow.h (tm_restart_node, gimple_df): Move to gimple-ssa.h.
(struct int_tree_map): Move to tree-hasher.h
(SCALE, LABEL, PERCENT): Move to gimple.h
* tree-flow-inline.h: Delete. Move functions to other files.
(unmodifiable_var_p, ref_contains_array_ref): Unused, so delete.
* gimple-ssa.h (tm_restart_node, gimple_df): Relocate from tree-flow.h.
(gimple_in_ssa_p, gimple_vop): Relocate from tree-flow-inline.h
* gimple.h (imple_stmt_max_uid, set_gimple_stmt_max_uid,
inc_gimple_stmt_max_uid, get_lineno): Relocate from tree-flow-inline.h.
(SCALE, LABEL, PERCENT): Relocate from tree-flow.h
* tree-hasher.h: Don't include tree-flow.h.
(struct int_tree_map): Relocate from tree-flow.h.
* tree-sra.c (contains_view_convert_expr_p): Relocate from
tree-flow-inline.h and make static.
* tree-ssa-alias.h (ranges_overlap_p): Relocate from tree-flow-inline.h.
* tree-ssa-operands.c (gimple_ssa_operands): Relocate from
tree-flow-inline.h and make static.
* tree.h (is_global_var, may_be_aliased): Relocate from
tree-flow-inline.h.
* Makefile.in (GTFILES): Remove tree-flow.h and add gimple-ssa.h.
* value-prof.c: No longer include tree-flow-inline.h.
* tree-switch-conversion.c: No longer include tree-flow-inline.h.
From-SVN: r203318
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* tree-flow.h (FREE_SSANAMES): Move to tree-ssanames.c
(SSANAMES, MODIFIED_NORETURN_CALLS, DEFAULT_DEFS, ptr_info_def,
num_ssa_names, ssa_name): Move to tree-ssanames.h + prototypes.
* tree-flow-inline.h (make_ssa_name, copy_ssa_name, duplicate_ssa_name,
make_temp_ssa_name): move to tree-ssanames.h
* tree-ssa-alias.h: Move prototype.
* tree-ssa.h: Include tree-ssanames.h.
* tree-ssanames.c (FREE_SSANAMES): Move to here.
* tree-ssanames.h: New. Move items from tree-flow*.h
* Makefile.in (tree-ssanames.h): Add to tree-ssanames.o and GTFILES.
From-SVN: r202527
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Add some overloaded functions that provide uniform debug dump
function names. These names are:
debug: the general debug dumper
debug_verbose: for more details
debug_raw: for the gory details
debug_head: for the heads of declarations, e.g. function heads
debug_body: for the bodies of declarations, e.g. function bodies
Not all types have the last four versions.
The debug functions come in two flavors, those that take pointers
to the type, and those that take references to the type. The first
handles printing of '<nil>' for null pointers. The second assumes
a valid reference, and prints the content.
Example uses are as follows:
cp_token t, *p;
debug (t);
debug (p);
From the debugger, use
call debug (t)
The functions sets implemented are:
debug (only)
basic_block_def, const bitmap_head_def, cp_binding_level,
cp_parser, cp_token, data_reference, die_struct, edge_def,
gimple_statement_d, ira_allocno, ira_allocno_copy, live_range,
lra_live_range, omega_pb_d, pt_solution, const rtx_def, sreal,
tree_live_info_d, _var_map,
vec<cp_token, va_gc>, vec<data_reference_p>, vec<ddr_p>,
vec<rtx>, vec<tree, va_gc>,
debug and debug_raw
simple_bitmap_def
debug and debug_verbose
expr_def, struct loop, vinsn_def
debug, debug_raw, debug_verbose, debug_head, debug_body
const tree_node
This patch is somewhat different from the original plan at
gcc.gnu.org/wiki/cxx-conversion/debugging-dumps. The reason
is that gdb has an incomplete implementation of C++ call syntax;
requiring explicit specification of template arguments and explicit
specification of function arguments even when they have default
values. So, the original plan would have required typing
call dump <cp_token> (t, 0, 0, stderr)
which is undesireable. Instead instead of templates, we overload
plain functions. This adds a small burden of manually adding
the pointer version of dump for each type. Instead of default
function arguments, we simply assume the default values. Most of
the underlying dump functions did not use the options and indent
parameters anyway. Several provide FILE* parameters, but we expect
debugging to use stderr anyway. So, the explicit specification of
arguments was not as valuable as we thought initially. Finally,
a change of name from dump to debug reflect the implicit output
to stderr.
Index: gcc/ChangeLog
2013-03-28 Lawrence Crowl <crowl@google.com>
* Makefile.in: Add several missing include dependences.
(DUMPFILE_H): New.
(test-dump.o): New. This object is not added to any executable,
but is present for ad-hoc testing.
* bitmap.c
(debug (const bitmap_head_def &)): New.
(debug (const bitmap_head_def *)): New.
* bitmap.h
(extern debug (const bitmap_head_def &)): New.
(extern debug (const bitmap_head_def *)): New.
* cfg.c
(debug (edge_def &)): New.
(debug (edge_def *)): New.
* cfghooks.c
(debug (basic_block_def &)): New.
(debug (basic_block_def *)): New.
* dumpfile.h
(dump_node (const_tree, int, FILE *)): Correct source file.
* dwarf2out.c
(debug (die_struct &)): New.
(debug (die_struct *)): New.
* dwarf2out.h
(extern debug (die_struct &)): New.
(extern debug (die_struct *)): New.
* gimple-pretty-print.c
(debug (gimple_statement_d &)): New.
(debug (gimple_statement_d *)): New.
* gimple-pretty-print.h
(extern debug (gimple_statement_d &)): New.
(extern debug (gimple_statement_d *)): New.
* ira-build.c
(debug (ira_allocno_copy &)): New.
(debug (ira_allocno_copy *)): New.
(debug (ira_allocno &)): New.
(debug (ira_allocno *)): New.
* ira-int.h
(extern debug (ira_allocno_copy &)): New.
(extern debug (ira_allocno_copy *)): New.
(extern debug (ira_allocno &)): New.
(extern debug (ira_allocno *)): New.
* ira-lives.c
(debug (live_range &)): New.
(debug (live_range *)): New.
* lra-int.h
(debug (lra_live_range &)): New.
(debug (lra_live_range *)): New.
* lra-lives.c
(debug (lra_live_range &)): New.
(debug (lra_live_range *)): New.
* omega.c
(debug (omega_pb_d &)): New.
(debug (omega_pb_d *)): New.
* omega.h
(extern debug (omega_pb_d &)): New.
(extern debug (omega_pb_d *)): New.
* print-rtl.c
(debug (const rtx_def &)): New.
(debug (const rtx_def *)): New.
* print-tree.c
(debug_tree (tree): Move within file.
(debug_raw (const tree_node &)): New.
(debug_raw (const tree_node *)): New.
(dump_tree_via_hooks (const tree_node *, int)): New.
(debug (const tree_node &)): New.
(debug (const tree_node *)): New.
(debug_verbose (const tree_node &)): New.
(debug_verbose (const tree_node *)): New.
(debug_head (const tree_node &)): New.
(debug_head (const tree_node *)): New.
(debug_body (const tree_node &)): New.
(debug_body (const tree_node *)): New.
(debug_vec_tree (tree): Move and reimplement in terms of dump.
(debug (vec<tree, va_gc> &)): New.
(debug (vec<tree, va_gc> *)): New.
* rtl.h
(extern debug (const rtx_def &)): New.
(extern debug (const rtx_def *)): New.
* sbitmap.c
(debug_raw (simple_bitmap_def &)): New.
(debug_raw (simple_bitmap_def *)): New.
(debug (simple_bitmap_def &)): New.
(debug (simple_bitmap_def *)): New.
* sbitmap.h
(extern debug (simple_bitmap_def &)): New.
(extern debug (simple_bitmap_def *)): New.
(extern debug_raw (simple_bitmap_def &)): New.
(extern debug_raw (simple_bitmap_def *)): New.
* sel-sched-dump.c
(debug (vinsn_def &)): New.
(debug (vinsn_def *)): New.
(debug_verbose (vinsn_def &)): New.
(debug_verbose (vinsn_def *)): New.
(debug (expr_def &)): New.
(debug (expr_def *)): New.
(debug_verbose (expr_def &)): New.
(debug_verbose (expr_def *)): New.
(debug (vec<rtx> &)): New.
(debug (vec<rtx> *)): New.
* sel-sched-dump.h
(extern debug (vinsn_def &)): New.
(extern debug (vinsn_def *)): New.
(extern debug_verbose (vinsn_def &)): New.
(extern debug_verbose (vinsn_def *)): New.
(extern debug (expr_def &)): New.
(extern debug (expr_def *)): New.
(extern debug_verbose (expr_def &)): New.
(extern debug_verbose (expr_def *)): New.
(extern debug (vec<rtx> &)): New.
(extern debug (vec<rtx> *)): New.
* sel-sched-ir.h
(_list_iter_cond_expr): Make inline instead of static.
* sreal.c
(debug (sreal &)): New.
(debug (sreal *)): New.
* sreal.h
(extern debug (sreal &)): New.
(extern debug (sreal *)): New.
* tree.h
(extern debug_raw (const tree_node &)): New.
(extern debug_raw (const tree_node *)): New.
(extern debug (const tree_node &)): New.
(extern debug (const tree_node *)): New.
(extern debug_verbose (const tree_node &)): New.
(extern debug_verbose (const tree_node *)): New.
(extern debug_head (const tree_node &)): New.
(extern debug_head (const tree_node *)): New.
(extern debug_body (const tree_node &)): New.
(extern debug_body (const tree_node *)): New.
(extern debug (vec<tree, va_gc> &)): New.
(extern debug (vec<tree, va_gc> *)): New.
* tree-cfg.c
(debug (struct loop &)): New.
(debug (struct loop *)): New.
(debug_verbose (struct loop &)): New.
(debug_verbose (struct loop *)): New.
* tree-dump.c: Add header dependence.
* tree-flow.h
(extern debug (struct loop &)): New.
(extern debug (struct loop *)): New.
(extern debug_verbose (struct loop &)): New.
(extern debug_verbose (struct loop *)): New.
* tree-data-ref.c
(debug (data_reference &)): New.
(debug (data_reference *)): New.
(debug (vec<data_reference_p> &)): New.
(debug (vec<data_reference_p> *)): New.
(debug (vec<ddr_p> &)): New.
(debug (vec<ddr_p> *)): New.
* tree-data-ref.h
(extern debug (data_reference &)): New.
(extern debug (data_reference *)): New.
(extern debug (vec<data_reference_p> &)): New.
(extern debug (vec<data_reference_p> *)): New.
(extern debug (vec<ddr_p> &)): New.
(extern debug (vec<ddr_p> *)): New.
* tree-ssa-alias.c
(debug (pt_solution &)): New.
(debug (pt_solution *)): New.
* tree-ssa-alias.h
(extern debug (pt_solution &)): New.
(extern debug (pt_solution *)): New.
* tree-ssa-alias.c
(debug (_var_map &)): New.
(debug (_var_map *)): New.
(debug (tree_live_info_d &)): New.
(debug (tree_live_info_d *)): New.
* tree-ssa-alias.h
(extern debug (_var_map &)): New.
(extern debug (_var_map *)): New.
(extern debug (tree_live_info_d &)): New.
(extern debug (tree_live_info_d *)): New.
Index: gcc/cp/ChangeLog
2013-03-28 Lawrence Crowl <crowl@google.com>
* Make-lang.in
(CXX_PARSER_H): Add header dependence.
* cp-tree.h
(extern debug (cp_binding_level &)): New.
(extern debug (cp_binding_level *)): New.
* name-lookup.h
(debug (cp_binding_level &)): New.
(debug (cp_binding_level *)): New.
* parser.c
(debug (cp_parser &)): New.
(debug (cp_parser *)): New.
(debug (cp_token &)): New.
(debug (cp_token *)): New.
(debug (vec<cp_token, va_gc> &)): New.
(debug (vec<cp_token, va_gc> *)): New.
* parser.c: Add header dependence.
(extern debug (cp_parser &)): New.
(extern debug (cp_parser *)): New.
(extern debug (cp_token &)): New.
(extern debug (cp_token *)): New.
(extern debug (vec<cp_token, va_gc> &)): New.
(extern debug (vec<cp_token, va_gc> *)): New.
From-SVN: r197224
|
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From-SVN: r195098
|
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2012-09-06 Richard Guenther <rguenther@suse.de>
PR tree-optimization/54498
* tree-ssa-alias.h (get_continuation_for_phi): Add flag to
abort when reaching an already visited region.
* tree-ssa-alias.c (maybe_skip_until): Likewise. And do it.
(get_continuation_for_phi_1): Likewise.
(walk_non_aliased_vuses): When we translated the reference,
abort when we re-visit a region.
* tree-ssa-pre.c (translate_vuse_through_block): Adjust.
From-SVN: r191030
|
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2012-08-22 Richard Guenther <rguenther@suse.de>
PR tree-optimization/46590
* tree-ssa-alias.h (get_continuation_for_phi): Add alias query
counter output argument.
(walk_non_aliased_vuses): Add alias query counter argument
to the walker callback.
* tree-ssa-alias.c (maybe_skip_until): Add alias query counter
output argument and count alias queries.
(get_continuation_for_phi_1): Likewise.
(get_continuation_for_phi): Likewise.
(walk_non_aliased_vuses): Add alias query counter argument
to the walker callback and allow it to abort the walk by
returning -1.
* tree-ssa-pre.c (translate_vuse_through_block): Adjust.
* tree-ssa-sccvn.c (vn_reference_lookup_2): Add alias query
counter parmeter, abort walk if that is bigger than
--param sccvn-max-alias-queries-per-access.
* params.def (sccvn-max-alias-queries-per-access): New param.
* doc/invoke.texi (sccvn-max-alias-queries-per-access): Document.
From-SVN: r190594
|
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gcc/
* alias.h: Do not include coretypes.h in header files.
* cppbuiltin.h: Likewise.
* double-int.h: Likewise.
* gimple-fold.h: Likewise.
* flags.h: Likewise.
* tree-ssa-alias.h: Likewise.
* gengtype.h (obstack_chunk_alloc, obstack_chunk_free,
OBSTACK_CHUNK_SIZE): Define here to avoid dependency on coretypes.h.
* Makefile.in (RTL_BASE_H): Depend on coretypes.h.
(TREE_H): Likewise.
(ALIAS_H): Do not depend on coretypes.h.
(FLAGS_H): Likewise.
(realmpfr.o): Depend on coretypes.h.
java/
* verify.h: Do not include system.h and coretypes.h here.
* verify-impl.c: Include them here instead.
From-SVN: r189358
|
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2012-04-27 Richard Guenther <rguenther@suse.de>
* tree-flow.h (is_hidden_global_store): Remove.
* tree-ssa-sink.c (is_hidden_global_store): Likewise.
* tree-ssa-alias.h (ref_may_alias_global_p): Declare.
(stmt_may_clobber_global_p): Likewise.
* tree-ssa-alias.c (ref_may_alias_global_p): New function.
(stmt_may_clobber_global_p): Likewise.
* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Call
stmt_may_clobber_global_p.
* tree-ssa-dse.c (dse_possible_dead_store_p): Likewise.
From-SVN: r186903
|
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2011-12-05 Richard Guenther <rguenther@suse.de>
* tree-ssa-alias.h (struct ao_ref_s): Add volatile_p field.
* tree-ssa-alias.c (ao_ref_init): Initialize it.
(ao_ref_init_from_ptr_and_size): Likewise.
(refs_may_alias_p_1): Two volatile accesses conflict.
(ref_maybe_used_by_call_p_1): Likewise.
(call_may_clobber_ref_p_1): Likewise.
* tree-ssa-sccvn.c (ao_ref_init_from_vn_reference): Initialize
volatile_p field.
From-SVN: r182009
|
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2011-10-18 Richard Guenther <rguenther@suse.de>
* tree-ssa-alias.h (struct pt_solution): Remove
vars_contains_restrict member.
(pt_solutions_same_restrict_base): Remove.
(pt_solution_set): Adjust.
* tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Remove
vars_contains_restrict handling.
(dump_points_to_solution): Likewise.
(ptr_derefs_may_alias_p): Do not call pt_solutions_same_restrict_base.
* tree-ssa-structalias.c (struct variable_info): Remove is_restrict_var
field.
(new_var_info): Do not initialize it.
(ipa_escaped_pt): Adjust.
(make_constraint_from_restrict): Make the tag global.
(make_constraint_from_global_restrict): New function.
(make_constraint_from_heapvar): Remove.
(create_variable_info_for): Do not make restrict vars point
to NONLOCAL.
(intra_create_variable_infos): Likewise.
(find_what_var_points_to): Remove vars_contains_restrict handling.
(pt_solution_set): Adjust.
(pt_solution_ior_into): Likewise.
(pt_solutions_same_restrict_base): Remove.
(compute_points_to_sets): Do not test is_restrict_var.
* cfgexpand.c (update_alias_info_with_stack_vars): Adjust.
* gimple-pretty-print.c (pp_points_to_solution): Likewise.
* gcc.dg/torture/restrict-1.c: New testcase.
From-SVN: r180127
|
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2011-09-26 Tom de Vries <tom@codesourcery.com>
* tree-ssa-alias.h (pt_solution_singleton_p): Declare.
* tree-ssa-structalias.c (pt_solution_singleton_p): New function.
* tree-ssa-ccp.c (fold_builtin_alloca_for_var): Set points-to solution
of new var.
From-SVN: r179193
|
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dependency.
2011-04-27 Richard Guenther <rguenther@suse.de>
* Makefile.in (tree-ssa-structalias.o): Remove
gt-tree-ssa-structalias.h dependency.
(GTFILES): Remove tree-ssa-structalias.c.
* tree.c (allocate_decl_uid): New function.
(make_node_stat): Use it.
(copy_node_stat): Likewise.
* tree.h (allocate_decl_uid): Declare.
* tree-ssa-alias.h (delete_alias_heapvars): Remove.
* tree-ssa.c (delete_tree_ssa): Do not call delete_alias_heapvars.
* tree-flow.h (struct var_ann_d): Remove is_heapvar flag.
* tree-ssa-live.c (remove_unused_locals): Do not check is_heapvar
flag.
* tree-ssa-structalias.c (heapvar_for_stmt): Remove.
(struct heapvar_map): Likewise.
(heapvar_map_eq, heapvar_map_hash, heapvar_lookup,
heapvar_insert): Likewise.
(make_heapvar_for): Rename to ...
(make_heapvar): ... this. Simplify.
(fake_var_decl_obstack): New global var.
(build_fake_var_decl): New function.
(make_constraint_from_heapvar): Adjust.
(handle_lhs_call): Likewise.
(create_function_info_for): Likewise.
(intra_create_variable_infos): Likewise.
(init_alias_vars): Allocate fake_var_decl_obstack.
(init_alias_heapvars, delete_alias_heapvars): Remove.
(compute_points_to_sets): Do not call init_alias_heapvars.
(ipa_pta_execute): Likewise.
(delete_points_to_sets): Free fake_var_decl_obstack.
* gcc.dg/tree-ssa/pr23382.c: Remove.
From-SVN: r173030
|
|
From-SVN: r168438
|
|
gcc.dg/pr44838.c execution test)
2010-10-14 Richard Guenther <rguenther@suse.de>
PR tree-optimization/44913
* tree-data-ref.c (disjoint_objects_p): Remove.
(dr_may_alias_p): Simplify. Only hand the base object to
the alias-oracle.
* tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Handle
some more trees, bail out instead of asserting.
(ptr_derefs_may_alias_p): Likewise. Export.
(refs_may_alias_p_1): Handle STRING_CSTs.
* tree-ssa-alias.h (ptr_derefs_may_alias_p): Declare.
* gcc.dg/torture/pr44913.c: New testcase.
From-SVN: r165473
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2010-10-13 Richard Guenther <rguenther@suse.de>
PR tree-optimization/45970
* tree-ssa-alias.h (stmt_kills_ref_p): Declare.
* tree-ssa-alias.c (stmt_kills_ref_p_1): New function.
(stmt_kills_ref_p): Likewise.
* tree-ssa-dse.c (dse_optimize_stmt): Use it.
* gcc.dg/tree-ssa/ssa-dse-13.c: New testcase.
From-SVN: r165422
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