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tree-ssa-structalias.c:2858)
2005-08-14 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/22615
* tree-ssa-structalias.c (solution_set_add): Handle
first_vi_for_offset returning NULL.
(do_da_constraint): Ditto.
(do_sd_constraint): Ditto.
(do_ds_constraint): Ditto
(find_func_aliases): Ditto.
(build_constraint_graph): RHS is allowed be ANYTHING.
(first_vi_for_offset): Return NULL if we couldn't find anything at
the offset.
From-SVN: r103083
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* Makefile.in, cfgexpand.c, cfgloop.h, cfgloopmanip.c,
config.gcc, ipa-cp.c, ipa-prop.c, ipa-prop.h, reg-stack.c,
tree-ssa-structalias.c, tree-vrp.c, value-prof.c, vec.h,
config/linux.h, config/alpha/alpha.h, config/alpha/linux.h,
config/alpha/predicates.md, config/arc/arc.h,
config/arm/arm.h, config/arm/ieee754-df.S,
config/arm/ieee754-sf.S, config/bfin/bfin.c,
config/bfin/bfin.h, config/c4x/c4x.h, config/crx/crx.c,
config/fr30/fr30.h, config/frv/frv.h, config/h8300/h8300.h,
config/i386/i386.h, config/ia64/ia64.c, config/ia64/ia64.h,
config/m68hc11/m68hc11.h, config/mips/mips.c,
config/mips/mips.h, config/mips/openbsd.h,
config/mn10300/mn10300.h, config/pa/pa.c, config/pa/pa.h,
config/pdp11/pdp11.h, config/rs6000/linux-unwind.h,
config/rs6000/rs6000.c, config/rs6000/rs6000.h,
config/s390/s390.c, config/sh/sh.c, config/sh/sh.h,
config/sparc/linux.h, config/sparc/linux64.h,
config/sparc/sparc.h, config/v850/v850.h, config/vax/vax.h,
doc/extend.texi, doc/gcov.texi, doc/install.texi,
doc/invoke.texi, doc/rtl.texi, doc/tm.texi: Fix comment/doc
typos. Follow spelling conventions.
From-SVN: r102809
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current struct contains only fields we decomposed.
2005-07-27 Richard Guenther <rguenther@suse.de>
* tree-ssa-structalias.c (push_fields_onto_fieldstack):
Avoid pushing again if current struct contains only
fields we decomposed.
* gcc.dg/tree-ssa/salias-1.c: New testcase.
From-SVN: r102424
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* calls.c, fold-const.c, ipa-reference.c, ipa-type-escape.c,
tree-ssa-reassoc.c, tree-ssa-structalias.c, vec.h,
config/crx/crx.c, config/m32c/m32c.c, config/m32c/m32c.h: Fix
comment typos.
* doc/c-tree.texi, doc/tree-ssa.texi: Fix typos.
From-SVN: r102385
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of PTR.
* tree-ssa-alias.c (count_ptr_derefs): Do not consider
&PTR->FLD a dereference of PTR.
* tree-ssa-structalias.c (update_alias_info): Consider &PTR->FLD
a potential dereference of PTR.
testsuite/ChangeLog
* gcc.dg/tree-ssa/20050719-1.c: New test.
From-SVN: r102283
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gcc/ChangeLog:
* tree-ssa-structalias.c (merge_graph_nodes): Fix uninitialised
warnings.
(int_add_graph_edge): Likewise.
(collapse_nodes): Likewise.
(process_unification_queue): Likewise.
gcc/cp/ChangeLog:
* parser.c (cp_parser_declaration): Fix unitialised warnings.
gcc/fortran/ChangeLog:
* match.c (gfc_match_symbol): Fix uninitialised warnings.
* matchexp.c (gfc_match_expr): Likewise.
gcc/java/ChangeLog:
* verify-impl.c (check_class_constant): Fix uninitialised warnings.
(check_constant): Likewise.
(check_wide_constant): Likewise.
From-SVN: r102273
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2005-07-16 Daniel Berlin <dberlin@dberlin.org>
* tree-ssa-structalias.c (need_to_solve): Need to check for preds,
too.
From-SVN: r102100
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2005-07-13 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/22376
* tree-ssa-structalias.c (build_constraint_graph): We really meant
special var here.
(need_to_solve): New function.
(compute_points_to_sets): Use it.
From-SVN: r102056
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From-SVN: r101969
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tree-ssa-structalias.c:2843)
2005-07-12 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/22422
* tree-ssa-structalias.c (struct variable_info): Add flag for
special vars.
(get_varinfo): Now a static function.
(new_varinfo): init has_union and is_special_var to false.
(solution_set_add): Check has_union.
(do_da_constraint): Move temporary variable so it gets reset
properly.
Also check for special variable.
(do_ds_constraint): Ditto.
(do_sd_constraint): Ditto.
(do_structure_copy): Check for special variable.
(find_func_aliases): Ditto.
(init_base_vars): Set special vars properly.
From-SVN: r101959
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2005-07-11 Daniel Berlin <dberlin@dberlin.org>
* print-tree.c (print_node): Use DECL_ARGUMENT_FLD.
* tree.h (DECL_ARGUMENT_FLD): New macro.
2005-07-11 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/22404
* tree-ssa-structalias.c (create_variable_info_for): Use
correct offset.
From-SVN: r101894
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2005-07-07 Daniel Berlin <dberlin@dberlin.org>
* tree-ssa-structalias.c (struct variable_info): Heapify complex.
(varmap): Heapify varmap.
(constraints): Heapify constraints.
(struct constraint_graph): Heapify succs and preds.
(constraint_vec_find): Update for heapification.
(constraint_set_union): Ditto.
(insert_into_complex): Ditto.
(constraint_edge_vec_find): Ditto.
(erase_graph_self_edge): Ditto.
(add_graph_edge): Ditto.
(get_graph_weights): Ditto.
(merge_graph_nodes): Ditto.
(build_constraint_graph): Ditto.
(topo_visit): Ditto.
(solve_graph): Ditto.
(create_variable_info_for): Ditto.
(init_base_vars): Ditto.
(delete_points_to_sets): Free graph, varmap, and complex constraints.
(condese_varmap_nodes): Free complex vector.
(clear_edges_for_node): Clear succs and preds vector.
From-SVN: r101862
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not include vdefs.
2005-07-10 Daniel Berlin <dberlin@dberlin.org>
* tree-ssa-structalias.c (update_alias_info): Change counting of
references to not include vdefs.
From-SVN: r101861
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* Makefile.in (tree-ssa-alias.o): Depend on tree-ssa-structalias.h
* tree-cfg.c (CHECK_OP): Only test for is_gimple_val.
* tree-dfa.c (dump_subvars_for): New.
(debug_subvars_for): New.
(dump_variable): Show subvariables if VAR has them.
* tree-flow-inline.h (get_subvar_at): New.
(overlap_subvar): Change offset and size to unsigned HOST_WIDE_INT.
* tree-flow.h (struct ptr_info_def): Remove field pt_malloc.
Update all users.
(struct subvar): Change fields offset and size to unsigned
HOST_WIDE_INT.
(dump_subvars_for): Declare.
(debug_subvars_for): Declare.
(get_subvar_at): Declare.
(okay_component_ref_for_subvars): Change 2nd and 3rd argument
to unsigned HOST_WIDE_INT *.
(overlap_subvar): Likewise.
* tree-gimple.c (is_gimple_reg): Always return false for
SFTs and memory tags.
* tree-pass.h (pass_build_pta, pass_del_pta): Remove.
Update all callers.
* tree-ssa-alias.c: Include tree-ssa-structalias.h.
(compute_may_aliases): Call compute_points_to_sets.
(collect_points_to_info_for): Remove.
(compute_points_to_and_addr_escape): Remove.
(delete_alias_info): Call delete_points_to_sets.
(compute_flow_sensitive_aliasing): If the call to
find_what_p_points_to returns false, call set_pt_anything.
(add_may_alias): Set TREE_ADDRESSABLE when adding a new alias.
(set_pt_anything): Clear pi->pt_vars.
(set_pt_malloc): Remove.
(merge_pointed_to_info): Remove.
(add_pointed_to_expr): Remove.
(add_pointed_to_var): Remove.
(collect_points_to_info_r): Remove.
(is_escape_site): Make extern.
(create_sft): New.
(create_overlap_variables_for): Call it.
* tree-ssa-copy.c (merge_alias_info): Never merge
flow-sensitive alias information.
* tree-ssa-operands.c (get_expr_operands): Adjust variables
offset and size to be unsigned HOST_WIDE_INT.
(add_to_addressable_set): Rename from note_addressable.
Set TREE_ADDRESSABLE as the variables are added to the set.
Update all users.
(add_stmt_operand): Do not try to micro-optimize unmodifiable
operands into VUSEs when adding V_MAY_DEFs for members in an
alias set.
* tree-ssa-operands.h (add_to_addressable_set): Declare.
* tree-ssa-structalias.c: Include tree-ssa-structalias.h last.
(struct variable_info): Add bitfield is_heap_var.
(var_anyoffset, anyoffset_tree, anyoffset_id): Declare.
(new_var_info): Initialize is_heap_var.
(get_constraint_for): Add HEAP variables to the symbol table.
Mark them with is_heap_var.
(update_alias_info): New. Taken mostly from the old
compute_points_to_and_addr_escape.
(handle_ptr_arith): New.
(find_func_aliases): Call update_alias_info.
Call handle_ptr_info for tcc_binary expressions.
Call mark_stmt_modified.
(create_variable_info_for): If DECL has subvars, do not create
variables for its subvars. Always add all the fields.
(set_uids_in_ptset): If the solution includes ANYOFFSET and
SFTs, then add all the SFTs of the structure.
If VI->DECL is an aggregate with subvariables, add the SFT at
VI->OFFSET.
(find_what_p_points_to): If VI is an artificial variable,
translate to bitfields in SSA_NAME_PTR_INFO.
If the solution is empty, set pi->pt_vars to NULL
(init_base_vars): Create ANYOFFSET.
(compute_points_to_sets): Rename from create_alias_vars.
Make extern.
(pass_build_pta): Remove.
(delete_points_to_sets): Rename from delete_alias_vars.
(pass_del_pta): Remove.
* tree-ssa-structalias.h (struct alias_info): Move from
tree-ssa-alias.h.
(NUM_REFERENCES, NUM_REFERENCES_CLEAR, NUM_REFERENCES_INC,
NUM_REFERENCES_SET): Likewise.
(compute_points_to_sets, delete_points_to_sets): Declare.
testsuite/ChangeLog
* gcc.dg/tree-ssa/pta-fp.c: Use -fdump-tree-alias1.
From-SVN: r101841
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tree-optimization/22310
2005-07-06 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/22319
Fix PR tree-optimization/22140
Fix PR tree-optimization/22310
* tree-ssa-structalias.c (do_structure_copy): Give up earlier on
variable sized types.
Use correct type for intermediate structure on *a = *b structure
copies.
From-SVN: r101658
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saying it points to readonly memory if we can't do better.
2005-07-04 Daniel Berlin <dberlin@dberlin.org>
* tree-ssa-structalias.c (get_constraint_exp_from_ssa_var):
Only fall back to saying it points to readonly memory if
we can't do better.
From-SVN: r101625
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From-SVN: r101609
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tree-ssa-structalias.c:2566)
2005-07-04 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/22279
* tree-ssa-structalias.c (offset_overlaps_with_access): Use
correct operator.
From-SVN: r101603
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tree-ssa-structalias.c:2506)
2005-06-29 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/22071
* tree-ssa-structalias.c (offset_overlaps_with_access): New
function.
(get_constraint_for_component_ref): Use it.
From-SVN: r101516
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2005-06-29 Daniel Berlin <dberlin@dberlin.org>
* tree-complex.c (complex_variable_components): Now a hashtable.
(cvc_lookup): Ditto.
(cvc_insert): Ditto.
(create_components): Use referenced var iterator.
Initialize hashtable. Use cvc_insert/lookup.
(extract_components): Use cvc_insert/lookup.
(update_complex_components): Ditto.
(update_complex_components_on_edge): Ditto.
* tree-dfa.c (referenced_vars): Now a hashtable.
(dump_referenced_vars): Use iterator.
(referenced_var_lookup): New function.
(referenced_var_insert): Ditto.
(add_referenced_var): Use referenced_var_insert.
(mark_new_vars_to_rename): Use DECL_UID.
* tree-flow-inline.h (first_htab_element): New function.
(end_htab_p): Ditto.
(next_htab_element): Ditto.
(first_referenced_var): Ditto.
(end_referenced_vars_p): Ditto.
(next_referenced_var): Ditto.
(is_call_clobbered): Use DECL_UID.
(mark_call_clobbered): Ditto.
(clear_call_clobbered): Ditto.
(mark_non_addressable): Ditto.
* tree-flow.h (htab_iterator): New struct.
(FOR_EACH_HTAB_ELEMENT): New macro.
(struct int_tree_map): New struct.
(int_tree_map_hash): Prototype.
(int_tree_map_eq): Ditto.
(referenced_var_iterator): Ditto.
(FOR_EACH_REFERENCED_VAR): New macro.
(referenced_vars): Now a hashtable.
* tree-into-ssa.c (symbol_marked_for_renaming): Use DECL_UID.
(add_new_name_mapping): Ditto.
(mark_def_sites): Ditto.
(insert_phi_nodes): Use referenced_var iterator.
(mark_def_site_blocks): Ditto.
(mark_sym_for_renaming): Use DECL_UID.
* tree-sra.c (is_sra_candidate_decl): Use DECL_UID.
(lookup_element): Ditto.
(find_candidates_for_sra): Use referenced_vars iterator.
Use DECL_UID.
* tree-ssa-alias.c (NUM_REFERENCES): New macro.
(NUM_REFERENCES_CLEAR): Ditto.
(NUM_REFERENCES_INC): Ditto.
(NUM_REFERENCES_SET): Ditto.
(alias_obstack): New bitmap obstack.
(struct alias_map_d): Use bitmap, not sbitmap.
(struct alias_info): Remove num_references.
(init_alias_info): Use referenced_var iterator.
Initialize bitmap obstack.
(delete_alias_info): Use referenced_var iterator.
Free bitmap obstack.
(compute_points_to_and_addr_escape): Use DECL_UID.
Use new NUM_REFERENCES macros.
(compute_flow_sensitive_aliasing): may_aliases is now a bitmap.
Use new NUM_REFERENCES macros.
(group_aliases_into): Update prototype to use bitmap.
(setup_pointers_and_addressables): Use referenced_vars iterator.
Use DECL_UID. Use new NUM_REFERENCES macros.
(add_pointed_to_var): Use DECL_UID.
(dump_alias_info): Use referenced_var iterator.
(add_type_alias): Ditto.
(used_portions): Now a hashtable.
(used_part_map_eq): New function.
(used_part_map_hash): Ditto.
(free_used_part_map): Ditto.
(up_lookup): Ditto.
(up_insert): Ditto.
(get_or_create_used_part_for): Use up_lookup.
(create_overlap_variables_for): Ditto.
(find_used_portions): Use up_insert.
Use DECL_UID.
(create_structure_vars): Init used_portions hashtable, use
referenced_vars iterator.
* tree-ssa-live.c (create_ssa_var_map): sbitmaps became bitmaps.
Use DECL_UID.
* tree-ssa-loop-im.c (gather_mem_refs_stmt): Use DECL_UID.
* tree-ssa-operands.c (get_asm_expr_operands): Ditto.
(note_addressable): Ditto.
* tree-ssa-structalias.c (set_uids_in_ptset): Ditto.
* tree-ssa.c (verify_flow_insensitive_alias_info): Use
referenced_var iterator.
Use DECL_UID.
(delete_tree_ssa): Ditto.
(int_tree_map_eq): New function.
(int_tree_map_hash): Ditto.
* tree-stdarg.c (find_va_list_reference): Use DECL_UID.
(va_list_ptr_read): Ditto.
(va_list_counter_struct_op): Ditto.
(va_list_ptr_write): Ditto.
(check_va_list_escapes): Ditto.
(check_all_va_list_escapes): Ditto.
(execute_optimize_stdarg): Ditto.
* tree-tailcall.c (suitable_for_tail_opt_p): Used referenced_var
iterator.
2005-06-30 Daniel Berlin <dberlin@dberlin.org>
* hashtab.h (HTAB_DELETED_ENTRY): New macro.
(HTAB_EMPTY_ENTRY): New macro.
2005-06-30 Daniel Berlin <dberlin@dberlin.org>
* hashtab.c (EMPTY_ENTRY): Moved and renamed.
(DELETED_ENTRY): Ditto.
From-SVN: r101480
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PR middle-end/22247
* tree-ssa-structalias.c (build_constraint_graph, scc_visit,
process_unification_queue, init_topo_info, topo_visit,
init_scc_info, free_scc_info, perform_var_substitution,
solve_graph): Use unsigned instead of uint.
From-SVN: r101475
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From-SVN: r101317
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2005-06-20 Daniel Berlin <dberlin@dberlin.org>
* c-typeck.c (build_function_call): Set fundecl = function again.
* tree-ssa-alias.c (find_used_portions): Address taking causes the
entire variable to be used.
* tree-ssa-structalias.c (do_structure_copy): Fix handling of
unknown size variables, and structure copies from addressof
operations. Simplify how we do *a = *b type structure copies.
(init_base_vars): Add ANYTHING = &ANYTHING constraint the right
way. READONLY's address is not taken by default.
INTEGER dereference should point to anything.
(create_variable_info_for): It's okay for the first field to not start
at 0.
From-SVN: r101227
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* tree-ssa-structalias.c (dump_solution_for_var): Reformat
output.
(dump_sa_points_to_info): Make extern.
(debug_sa_points_to_info): New.
* tree-ssa-structalias.h (TREE_SSA_STRUCTALIAS_H): Rename from
TREE_ALIAS_COMMON.
(dump_sa_points_to_info): Declare.
(debug_sa_points_to_info): Declare.
From-SVN: r100987
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* cgraphunit.c, tree-ssa-loop-ivopts.c,
tree-ssa-structalias.c, tree-vectorizer.c, tree-vectorizer.h,
config/sparc/sparc.c: Fix comment typos.
From-SVN: r100856
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2005-06-11 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/22005
Fix PR tree-optimization/22025
* tree-ssa-structalias.c (struct variable_info): Add has_union
member.
(create_variable_info_for): Mark variables containing unions.
Don't sort the field stack if notokay is true.
(find_what_p_points_to): Convert variables containing unions back
to their SFT's if necessary.
From-SVN: r100851
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2005-06-08 Daniel Berlin <dberlin@dberlin.org>
* Makefile.in (OBJS-common): Add tree-ssa-structalias.o.
* tree-flow.h (find_what_p_points_to): Add prototype.
(push_fields_onto_fieldstack): Ditto.
(sort_fieldstack): Ditto.
* tree-optimize.c (init_tree_optimization_passes): Add
pass_build_pta and pass_del_pta.
* tree-pass.h (pass_build_pta): New structure.
(pass_del_pta): Ditto.
* tree-ssa-alias.c (compute_flow_sensitive_aliasing): Disambiguate
using new alias analyzer.
(push_fields_onto_fieldstack): Removed from here.
(bitpos_of_field): Ditto.
(fieldoff_compare): Ditto.
* tree-ssa-structalias.c: New file.
* tree-ssa-structalias.h: Ditto.
From-SVN: r100800
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