2006-12-12 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR tree-opt/28436
* tree.h (DECL_COMPLEX_GIMPLE_REG_P): Rename to ...
(DECL_GIMPLE_REG_P): This.
* fold-const.c (fold_indirect_ref_1): Fold *(foo *)&vectorfoo into
using BIT_FIELD_REF.
* omp-low.c (omp_copy_decl_2): Use the renamed DECL_GIMPLE_REG_P.
* tree-gimple.c (is_gimple_reg): Use the renamed DECL_GIMPLE_REG_P
and check for VECTOR_TYPE.
* expr.c (get_inner_reference): Set the mode for BIT_FIELD_REF with
vector types.
* tree-flow-inline.h (var_can_have_subvars): Use the renamed
DECL_GIMPLE_REG_P.
* gimplify.c (internal_get_tmp_var): Use the renamed DECL_GIMPLE_REG_P
and check for VECTOR_TYPE.
(gimplify_bind_expr): Likewise.
(gimplify_function_tree): Likewise.
* expmed.c: Include target.h.
(extract_bit_field): For vector mode, try find a better mode first.
If that fails use gen_lowpart (for vectors only).
* tree-dfa.c (make_rename_temp): Use the renamed DECL_GIMPLE_REG_P
and check for VECTOR_TYPE.
* tree-ssa-pre.c (create_expressions_by_pieces): Likewise.
(insert_into_preds_of_block): Likewise.
(insert_fake_stores): Create gimple register store_tmps for
vector types.
* tree-sra.c (sra_elt): New field, is_vector_lhs.
(sra_walk_expr <case BIT_FIELD_REF>): For vector types that
are the left hand side, set the element's is_vector_lhs to true.
(instantiate_element): For vector types which were on the left hand size, set DECL_GIMPLE_REG_P to false.
* tree-nested.c (create_tmp_var_for): Use the renamed DECL_GIMPLE_REG_P. * tree-inline.c (declare_return_variable): Use the renamed
DECL_GIMPLE_REG_P
and check for VECTOR_TYPE. (copy_decl_to_var): Use the renamed DECL_GIMPLE_REG_P.
(copy_result_decl_to_var): Likewise.
* tree-vect-transform.c (vect_get_new_vect_var): For vector types, create a gimple register variable.
(vect_permute_store_chain): Set DECL_GIMPLE_REG_P to true for the
vect_inter_* temp variables.
* Makefile.in (expmed.o): Update dependencies.
2006-12-12 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR tree-opt/28436
* gcc.c-torture/compile/vector-1.c: New test.
* gcc.c-torture/compile/vector-2.c: New test.
* gcc.c-torture/compile/vector-3.c: New test.
From-SVN: r119801
2006-12-11 Diego Novillo <dnovillo@redhat.com>
* doc/tree-ssa.texi: Update documentation for virtual operands
and the use of push_stmt_changes/pop_stmt_changes.
* doc/invoke.texi: Remove documentation for params
global-var-threshold.
Update documentation on max-aliased-vops.
* tree-into-ssa.c: Cleanup comments, variables and
spacing in various functions.
(regs_to_rename): Declare.
(mem_syms_to_rename): Declare.
(dump_update_ssa): Declare.
(debug_update_ssa): Declare.
(dump_names_replaced_by): Declare.
(debug_names_replaced_by): Declare.
(dump_def_blocks): Declare.
(debug_def_blocks): Declare.
(dump_defs_stack): Declare.
(debug_defs_stack): Declare.
(dump_currdefs): Declare.
(debug_currdefs): Declare.
(mark_def_sites): Do not handle virtual operands.
(compute_idf): Rename from find_idf. Update users.
(register_new_def): Make local. Convert second argument
to 'tree'.
Use BLOCK_DEFS_STACK directly.
If pushing a non-register, also push the underlying
symbol.
(rewrite_stmt): Do not handle virtual operands.
(dump_tree_ssa): Call dump_def_blocks, dump_defs_stack,
dump_currdefs and dump_tree_ssa_stats.
(dump_tree_ssa_stats): Also dump REPL_TBL.
(replace_use): Remove. Update all users to call SET_USE
instead.
(rewrite_blocks): Move code to free memory to
fini_ssa_renamer.
(mark_def_site_blocks): Move initialization code to
init_ssa_renamer.
(init_ssa_renamer): New.
(fini_ssa_renamer): New.
(rewrite_into_ssa): Call them.
(prepare_block_for_update): Process SSA_OP_ALL_USES first
and SSA_OP_ALL_DEFS later. Do not process virtual
operands separately.
(dump_update_ssa): Call dump_decl_set.
(init_update_ssa): Initialize regs_to_rename and
mem_syms_to_rename.
Call init_ssa_renamer.
(delete_update_ssa): Call fini_ssa_renamer.
Free blocks_with_phis_to_rewrite.
(mark_sym_for_renaming): If the variable has
sub-variables, also mark them.
If the variable belongs to a partition, also mark it.
(mark_set_for_renaming): Call mark_sym_for_renaming on
every symbol in the set.
(switch_virtuals_to_full_rewrite): Call
mark_set_for_renaming.
(update_ssa): Separate syms_to_rename into regs_to_rename
and mem_syms_to_rename.
* tree-dump.c (dump_options): Add TDF_MEMSYMS.
* tree-pretty-print.c (debug_generic_expr): Add TDF_MEMSYMS.
(debug_generic_stmt): Likewise.
(debug_tree_chain): Likewise.
(dump_symbols): New.
(dump_generic_node): Check for TDF_MEMSYMS.
Handle MEMORY_PARTITION_TAG.
If the statement references memory and TDF_MEMSYMS is
given, call dump_symbols.
Indicate default names with (D).
(dump_vops): Update for new virtual operator format.
* tree.c (init_ttree): Add MEMORY_PARTITION_TAG to
tree_contains_struct.
(tree_code_size): Handle MEMORY_PARTITION_TAG.
(tree_node_structure): Likewise.
(needs_to_live_in_memory): Handle SSA names.
* tree.h (MTAG_P): Likewise.
(struct tree_memory_partition_tag): Declare.
(MPT_SYMBOLS): Define.
(union tree_node): Add field 'mpt'.
* treestruct.def (TS_MEMORY_PARTITION_TAG): Define.
* tree.def (MEMORY_PARTITION_TAG): Define.
* tree-pass.h (TDF_MEMSYMS): Define.
* params.h (GLOBAL_VAR_THRESHOLD): Remove.
* tree-ssa-alias.c: Include pointer-set.h
(struct alias_map_d): Remove fields total_alias_vops,
grouped_p and may_aliases. Update all users.
(struct mp_info_def): Declare.
(mp_info_t): New type.
(get_smt_for): Rename from get_tmt_for. Update all
users.
(add_may_alias): Add argument ALREADY_ADDED. If given,
use it to avoid adding duplicate entries to alias sets.
(replace_may_alias): Remove. Update all users.
(total_alias_vops_cmp): Remove. Update all users.
(group_aliases_into): Remove. Update all users.
(tree_pointer_compare): Remove. Update all users.
(compact_name_tags): Remove. Update all users.
(group_aliases): Remove. Update all users.
(mark_non_addressable): Move from tree-flow-inline.h.
Remove the symbol from the partition holding it, if
needed.
(dump_mp_info): New.
(debug_mp_info): New.
(sort_mp_info): New.
(create_partition_for): New.
(rewrite_alias_set_for): New.
(compute_memory_partitions): New.
(compute_may_aliases): Call it.
(init_alias_info): If computing aliases for the first
time, mark every memory symbol for renaming.
(have_common_aliases_p): New.
(compute_flow_insensitive_aliasing): Call it.
(setup_pointers_and_addressables): Do not cache
num_referenced_vars.
For register promoted symbols, mark their former
partition for renaming.
(maybe_create_global_var): Only create .GLOBAL_VAR if
there are no call-clobbered variables and a mix of pure
and non-pure functions were found.
(may_alias_p): Tidy comments.
(create_tag_raw): Remove unused variable new_type.
(dump_alias_info): call dump_memory_partitions.
(dump_points_to_info_for): Call dump_decl_set.
(may_be_aliased): Tidy comments and formatting.
* timevar.def (TV_MEMORY_PARTITIONING): Define.
* tree-vectorizer.c (vect_memsyms_to_rename): Rename from
vect_vnames_to_rename. Set DECL_UIDs instead of SSA name
versions in it.
(slpeel_update_phi_nodes_for_guard1): Ignore memory PHIs.
* tree-vect-transform.c (vect_transform_loop): Call
mark_set_for_renaming with vect_memsyms_to_rename.
* tree-flow-inline.h (zero_imm_uses_p): New.
(memory_partition): New.
(set_memory_partition): New.
(factoring_name_p): New.
(symbol_mem_tag): New. Update every function that used
to access the annotation directly.
(set_symbol_mem_tag): Likewise.
* tree-ssa-copy.c (may_propagate_copy): Allow copies
between a partition and a symbol as long as the symbol
belongs to the partition.
(merge_alias_info): Ignore merge requests when memory
partitions are involved.
* tree-ssa.c (verify_ssa_name): Check that default
definitions have empty defining statements.
(verify_use): Remove argument IS_VIRTUAL.
Don't call verify_ssa_name.
(verify_phi_args): Call verify_ssa_name.
(verify_flow_insensitive_alias_info): Handle MPTs.
(verify_flow_sensitive_alias_info): Likewise.
(verify_name_tags): Likewise.
(verify_call_clobbering): Likewise.
(verify_ssa): Check for VOPs only after aliasing
information is available.
Check virtuals and real operands separately.
Call verify_ssa_name on every operand.
(stmt_references_memory_p): Move to tree-ssa-operands.c.
(walk_use_def_chains_1): Guard against NULL PHI
arguments.
* tree-ssa-operands.c (stmt_references_memory_p): Move from
tree-ssa.c.
(get_mpt_for): New.
(dump_memory_partitions): New.
(debug_memory_partitions): New.
* tree-flow.h (struct var_ann_d): Add field mpt.
(struct stmt_ann_d): Add bitfield references_memory.
* Makefile.in (tree-ssa-structalias.o): Include
pointer-set.h
(tree-ssa-alias.o): Likewise.
* tree-ssa-structalias.c: (update_alias_info): Use
STORED_SYMS to determine which variables are being
written to by the store operation.
* tree-ssa-structalias.h (struct alias_info)
<total_alias_vops>: Remove. Update all users.
<written_vars>: Change to a pointer set. Update all
users.
<dereferenced_ptrs_store>: Likewise.
<dereferenced_ptrs_load>: Likewise.
(NUM_REFERENCES): Remove. Update all users.
(NUM_REFERENCES_CLEAR): Remove. Update all users.
(NUM_REFERENCES_INC): Remove. Update all users.
(NUM_REFERENCES_SET): Remove. Update all users.
* params.def (PARAM_GLOBAL_VAR_THRESHOLD): Remove.
Update all users.
(PARAM_MAX_ALIASED_VOPS): Set to 10.
* tree-ssanames.c (make_ssa_name): Initialize
SSA_NAME_IS_DEFAULT_DEF to 0.
2006-12-11 Aldy Hernandez <aldyh@redhat.com>
* tree-ssa-dse.c (aggregate_vardecl_d): New.
(dse_global_data): Add aggregate_vardecl field.
(dse_possible_dead_store_p): New.
Add prev_defvar variable.
Allow immediate uses and previous immediate uses to differ
if they are setting different parts of the whole.
(get_aggregate_vardecl): New.
(dse_record_partial_aggregate_store): New.
(dse_whole_aggregate_clobbered_p): New.
(dse_partial_kill_p): New.
(dse_optimize_stmt): Abstract code checking a possible dead store
into new function dse_possible_dead_store_p().
Call dse_maybe_record_aggregate_store().
When checking whether a STMT and its USE_STMT refer to the
same memory address, check also for partial kills that clobber
the whole.
Move some variable definitions to the block where they are used.
(aggregate_vardecl_hash): New.
(aggregate_vardecl_eq): New.
(aggregate_vardecl_free): New.
(aggregate_whole_store_p): New.
(tree_ssa_dse): Initialize and free aggregate_vardecl.
Mark which aggregate stores we care about.
2006-12-11 Andrew Macleod <amacleod@redhat.com>
* tree-ssa-operands.h (struct vuse_element_d): Declare.
(vuse_element_t): Declare.
(struct vuse_vec_d): Declare.
(vuse_vec_p): Declare.
(VUSE_VECT_NUM_ELEM): Define.
(VUSE_VECT_ELEMENT_NC): Define.
(VUSE_ELEMENT_PTR_NC): Define.
(VUSE_ELEMENT_VAR_NC): Define.
(VUSE_VECT_ELEMENT): Define.
(VUSE_ELEMENT_PTR): Define.
(VUSE_ELEMENT_VAR): Define.
(struct maydef_optype_d) <use_var>: Remove.
<use_ptr>: Remove.
<usev>: Add.
(struct vuse_optype_d) <kill_var>: Remove.
<use_ptr>: Remove.
<usev>: Add.
(struct mustdef_optype_d) <kill_var>: Remove.
<use_ptr>: Remove.
<usev>: Add.
(VUSE_OP_PTR): Add argument. Use VUSE_ELEMENT_PTR.
(VUSE_OP): Add argument. Use VUSE_ELEMENT_PTR.
(VUSE_NUM): Define.
(VUSE_VECT): Define.
(MAYDEF_OP_PTR): Add argument. Use VUSE_OP_PTR.
(MAYDEF_OP): Add argument. Use VUSE_OP.
(MAYDEF_NUM): Define.
(MAYDEF_VECT): Define.
(MUSTDEF_KILL_PTR): Use VUSE_OP_PTR.
(MUSTDEF_KILL): Use VUSE_OP.
(MUSTDEF_NUM): Define.
(MUSTDEF_VECT): Define.
(realloc_maydef): Declare.
(realloc_vuse): Declare.
(struct ssa_operand_iterator_d) <vuse_index>: Add.
<mayuse_index>: Add.
(LOADED_SYMS): Define.
(STORED_SYMS): Define.
(FOR_EACH_SSA_MUSTDEF_OPERAND): Call op_iter_next_mustdef.
* tree-into-ssa.c: Adapt for multi-operand V_MAY_DEF and VUSE
operators.
* tree-pretty-print.c: Likewise.
* tree-ssa-dse.c: Likewise.
* tree-flow-inline.h: Likewise.
(op_iter_next_mustdef): New.
* tree-ssa-operands.c: Likewise.
(ALLOC_OPTYPE): Remove.
Update all users.
(alloc_def): New.
(alloc_use): New.
(alloc_maydef): New.
(alloc_vuse): New.
(alloc_mustdef): New.
(realloc_maydef): New.
(realloc_vuse): New.
2006-12-11 Aldy Hernandez <aldyh@redhat.com>
* tree-ssa-operands.c: Remove build_v_must_defs.
(init_ssa_operands): Delete build_v_must_defs.
(finalize_ssa_v_must_def_ops): Remove.
(finalize_ssa_v_must_defs): Remove.
(finalize_ssa_stmt_operands): Do not call
finalize_ssa_v_must_defs.
(start_ssa_stmt_operands): Do not check build_v_must_defs.
(append_v_must_def): Delete.
(copy_virtual_operands): Do not copy V_MUST_DEFs.
(get_modify_expr_operands): Remove reference to V_MUST_DEF from
comment. Remove opf_kill_def.
(build_ssa_operands): Remove references to v_must_defs.
(copy_virtual_operands): Same.
(copy_virtual_operands): Same.
(fini_ssa_operands): Same.
(free_ssa_operands): Same.
(add_mustdef_op): Remove.
Remove mustdef_optype_p.
(alloc_mustdef): Remove.
Remove references to V_MUST_DEFs in comment at top of file.
(get_expr_operands): Remove opf_kill_def.
(opf_kill_def): Remove.
(add_virtual_operand): Remove opf_kill_def.
(get_indirect_ref_operands): Same.
(get_tmr_operands): Same.
* tree-vectorizer.c (rename_variables_in_bb): Remove
SSA_OP_ALL_KILLS.
* tree-ssa-loop-manip.c (find_uses_to_rename_stmt): Remove
SSA_OP_ALL_KILLS.
(check_loop_closed_ssa_stmt): Same.
* tree-ssa.c (verify_def): Remove V_MUST_DEF from comment.
(verify_use): Same.
(verify_ssa): Remove V_MUST_DEFs traces.
(verify_ssa): Remove SSA_OP_ALL_KILLS.
* tree-into-ssa.c (mark_def_sites): Change SSA_OP_VMUSTDEF to
SSA_OP_VMAYDEF.
(rewrite_update_stmt): Remove SSA_OP_VIRTUAL_KILLS.
(rewrite_stmt): Remove SSA_OP_ALL_KILLS.
* tree-ssa-operands.h (struct stmt_operands_d): Remove V_MUST_DEF
references.
(MUSTDEF_OPS): Remove.
(SSA_OP_VMUSTDEF): Remove.
(FOR_EACH_SSA_MUSTDEF_OPERAND): Remove.
(struct mustdef_optype_d): Remove.
Remove mustdef_optype_p.
(struct stmt_operands_d): Remove mustdef_ops.
(ssa_operand_iterator_d): Remove mustdefs and mustkills.
(SSA_OP_VIRTUAL_DEFS): Remove SSA_OP_VMUSTDEF.
(MUSTDEF_RESULT_PTR): Remove.
(MUSTDEF_RESULT): Remove.
(MUSTDEF_KILL_PTR): Remove.
(MUSTDEF_KILL): Remove.
(MUSTDEF_NUM): Remove.
(MUSTDEF_VECT): Remove.
(SSA_OP_VIRTUAL_KILLS): Remove.
(SSA_OP_ALL_VIRTUALS): Remove SSA_OP_VIRTUAL_KILLS.
(SSA_OP_VMUSTKILL): Remove.
(SSA_OP_ALL_KILLS): Remove.
(SSA_OP_ALL_OPERANDS): Remove SSA_OP_ALL_KILLS.
* tree-flow-inline.h (op_iter_init_def): Remove
SSA_OP_VIRTUAL_KILLS.
(delink_stmt_imm_use): Remove SSA_OP_ALL_KILLS.
* tree-ssa-pre.c (compute_rvuse_and_antic_safe): Remove
SSA_OP_VIRTUAL_KILLS.
* tree-ssa-loop-im.c (determine_max_movement): Remove
SSA_OP_VIRTUAL_KILLS.
(gather_mem_refs_stmt): Same.
(gather_mem_refs_stmt): Same.
* tree-ssa-dce.c (mark_really_necessary_kill_operand_phis): Delete.
(perform_tree_ssa_dce): Remove call to
mark_really_necessary_kill_operand_phis.
* tree-flow-inline.h (op_iter_init): Remove setting of mustdefs
and mustkills.
(op_iter_next_use): Do not check mustkills.
(op_iter_next_def): Do not check mustdefs.
(op_iter_next_tree): Do not check mustkills or mustdefs.
(clear_and_done_ssa_iter): Do not set mustdefs or mustkills.
(op_iter_next_maymustdef): Do not check mustkills.
(op_iter_init_must_and_may_def): Remove SSA_OP_VMUSTKILL.
(op_iter_init_mustdef): Remove.
* tree-ssa-live.c (create_ssa_var_map): Change SSA_OP_VMUSTDEF to
SSA_OP_VMAYDEF.
* tree-ssa-dse.c (dse_optimize_stmt): Remove SSA_OP_VMUSTDEF.
* tree-ssa-ccp.c: Remove V_MUST_DEF traces from comments.
(visit_assignment): Same.
* tree-ssa-copy.c (copy_prop_visit_assignment): Same.
* tree-sra.c (mark_all_v_defs_1): Remove V_MUST_DEF from comment.
* tree-outof-ssa.c (check_replaceable): Remove SSA_OP_VMUSTDEF.
* tree-pretty-print.c (dump_vops): Remove printing of V_MUST_DEF.
Remove kill_p variable.
* tree-dfa.c (struct dfa_stats_d): Remove num_v_must_defs.
(dump_dfa_stats): Remove code related to V_MUST_DEFs.
(collect_dfa_stats_r): Do not set num_v_must_defs.
(mark_new_vars_to_rename): Remove v_must_defs_{before,after}
code.
* tree-into-ssa.c (mark_def_sites): Change SSA_OP_VMUSTKILL to
SSA_OP_VMAYUSE.
* tree-ssa-pre.c (compute_rvuse_and_antic_safe): Remove
SSA_OP_VMUSTDEF and SSA_OP_VMUSTKILL.
* tree-ssa-propagate.c (stmt_makes_single_store): Remove
SSA_OP_VMUSTDEF.
From-SVN: r119760
* tree-ssa-operands.h (create_ssa_artificial_load_stmt):
Rename from create_ssa_artficial_load_stmt. Update all users.
* tree-into-ssa.c (register_new_def): Make static.
* tree.c (is_global_var): Handle SSA_NAMEs.
* tree.h (SSA_NAME_IS_DEFAULT_DEF): Define. Update all users
that used to call gimple_default_def.
* tree-ssa-operands.c (push_stmt_changes): New.
(pop_stmt_changes): New. Update every pass that modifies
statements to bracket modifications with
push_stmt_changes/pop_stmt_changes.
(discard_stmt_changes): New.
* tree-ssa-dom.c (stmts_to_rescan): Change to stack of
'tree *' instead of 'tree'. Update all users.
* tree-flow-inline.h (zero_imm_uses_p): New.
(symbol_mem_tag): New. Update every function that used
to access the annotation directly.
(set_symbol_mem_tag): Likewise.
* tree-dfa.c (dump_variable): Always show the escape mask.
(mark_symbols_for_renaming): Rename from
mark_new_vars_to_rename. Update all users.
Only mark to rename naked symbols in real and virtual
operands.
From-SVN: r119746
* coverage.c (coverage_checksum_string): Update comment.
* dwarf2out.c (switch_to_eh_frame_section): Update for removal
of get_file_function_name.
* cgraphunit.c (cgraph_build_static_cdtor): Update for rename
of get_file_function_name_long.
* tree.c (get_file_function_name): Rename from
get_file_function_name_long; improve comment; handle 'I' and 'D'
specially when the target has ctor/dtor support; remove special
handling for 'F'.
(get_file_function_name): Remove.
* tree.h (get_file_function_name): Rename from
get_file_function_name_long.
(get_file_function_name): Remove prototype.
In gcc/cp/:
* name-lookup.c (get_anonymous_namespace_name): New.
(push_namespace_with_attribs): Use get_anonymous_namespace_name.
* decl2.c (start_objects): Update for rename of
get_file_function_name_long.
In gcc/fortran/:
* trans-decl.c (gfc_generate_constructors): Update for removal
of get_file_function_name.
From-SVN: r118360
PR middle-end/23470
* tree.h (tree_expr_nonnegative_p): Return "bool" instead of "int".
* fold-const.c (tree_expr_nonnegative_p): Likewise. Consider
pow(x,y) and powi(x,y) to be nonnegative if either x is nonnegative
or y is an even integer.
* gcc.dg/pr23470-1.c: New test case.
From-SVN: r118355
2006-10-20 Daniel Berlin <dberlin@dberlin.org>
* tree.h (DECL_PTA_ARTIFICIAL): Remove.
(tree_decl_with_vis): Remove artificial_pta_var flag.
* tree-flow.h (referenced_var_check_and_insert): Expose.
(nonlocal_all): New prototype.
* tree-ssa-structalias.c (nonlocal_for_type): Remove.
(nonlocal_all): Make global.
(nonlocal_lookup): Remove.
(nonlocal_insert): Ditto.
(create_nonlocal_var): Do not call nonlocal_insert.
(get_nonlocal_id_for_type): Remove.
(find_global_initializers): Mark new vars we find for renaming.
(intra_create_variable_infos): Only create one nonlocal.
(expand_nonlocal_solutions): Remove.
(compute_points_to_sets): Don't call it.
(ipa_pta_execute): Ditto.
(init_alias_heapvars): Don't create nonlocal_for_type.
(delete_alias_heapvars): Don't remove it.
* tree-ssa-operands.c (access_can_touch_variable): Don't prune
nonlocal_all.
From-SVN: r117922
2006-10-19 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/28778
Fix PR tree-optimization/29156
Fix PR tree-optimization/29415
* tree.h (DECL_PTA_ARTIFICIAL): New macro.
(tree_decl_with_vis): Add artificial_pta_var flag.
* tree-ssa-alias.c (is_escape_site): Remove alias info argument,
pushed into callers.
* tree-ssa-structalias.c (nonlocal_for_type): New variable.
(nonlocal_all): Ditto.
(struct variable_info): Add directly_dereferenced member.
(var_escaped_vars): New variable.
(escaped_vars_tree): Ditto.
(escaped_vars_id): Ditto.
(nonlocal_vars_id): Ditto.
(new_var_info): Set directly_dereferenced.
(graph_size): New variable
(build_constraint_graph): Use graph_size.
(solve_graph): Don't process constraints that cannot change the
solution, don't try to propagate an empty solution to our
successors.
(process_constraint): Set directly_dereferenced.
(could_have_pointers): New function.
(get_constraint_for_component_ref): Don't process STRING_CST.
(nonlocal_lookup): New function.
(nonlocal_insert): Ditto.
(create_nonlocal_var): Ditto.
(get_nonlocal_id_for_type): Ditto.
(get_constraint_for): Allow results vector to be empty in the case
of string constants.
Handle results of calls properly.
(update_alias_info): Update alias info stats on number and type of
calls.
(find_func_aliases): Use could_have_pointers.
(make_constraint_from_escaped): Renamed from
make_constraint_to_anything, and changed to make constraints from
escape variable.
(make_constraint_to_escaped): New function.
(find_global_initializers): Ditto.
(create_variable_info_for): Make constraint from escaped to any
global variable, and from any global variable to the set of
escaped vars.
(intra_create_variable_infos): Deal with escaped instead of
pointing to anything.
(set_uids_in_ptset): Do type pruning on directly dereferenced
variables.
(find_what_p_points_to): Adjust call to set_uids_with_ptset.
(init_base_vars): Fix comment, and initialize escaped_vars.
(need_to_solve): Removed.
(find_escape_constraints): New function.
(expand_nonlocal_solutions): Ditto.
(compute_points_to_sets): Call find_escape_constraints and
expand_nonlocal_solutions.
(delete_points_to_sets): Don't fall off the end of the graph.
(init_alias_heapvars): Initialize nonlocal_for_type and
nonlocal_all.
(delete_alias_heapvars): Free nonlocal_for_type and null out
nonlocal_all.
From-SVN: r117891
* fold-const.c (add_double): Rename to add_double_with_sign.
Add 'unsigned_p' parameter and take it into account for the overflow.
(mul_double): Rename to mul_double_with_sign.
Add 'unsigned_p' parameter and take it into account for the overflow.
(fold_div_compare): Call add_double_with_sign instead of add_double
and mul_double_with_sign instead of mul_double, passing them the
unsignedness of the type.
* tree.h (add_double): Macroize.
(add_double_with_sign): New prototype.
(mul_double): Macroize.
(mul_double_with_sign): New prototype.
From-SVN: r117887
2006-10-01 Sandra Loosemore <sandra@codesourcery.com>
* gcc/tree.h (DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): Fix
comments to reflect actual behavior and relationship between
DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET, and DECL_OFFSET_ALIGN.
* gcc/doc/c-tree.texi (Working with declarations): Fix documentation
of FIELD_DECL likewise.
From-SVN: r117352
* tree.h (CASE_LOW_SEEN, CASE_HIGH_SEEN): New macros for manipulating
temporary visit flags on CASE_LABEL_EXPRs.
* c-common.c (match_case_to_enum): Add function comment. Avoid
O(N) loop, by looking up both CASE_LOW_SEEN and CASE_HIGH_SEEN.
(c_do_switch_warnings): Reorganize to record CASE_LOW_SEEN and
CASE_HIGH_SEEN for enumerated types. If the switch expression is
a constant, only warn if that constant value isn't handled.
* gcc.dg/Wswitch-enum-2.c: New test case.
* gcc.dg/Wswitch-enum-3.c: Likewise.
From-SVN: r116481
PR c++/28407
* cp/decl.c (grokvardecl): Set DECL_THIS_STATIC on file-scope
const variables with implicit internal linkage.
* cp/tree.c (decl_linkage): Only return lk_external if it's set.
PR c++/28409
* cp/decl2.c (constrain_visibility): Ignore the anonymous namespace
for extern C decls.
(VISIBILITY_STATIC): Rename to VISIBILITY_ANON.
Don't override explicit visibility.
* cp/decl2.c (constrain_visibility): Remove specified and reason
parameters. Don't touch decls that already have explicit visibility.
(determine_visibility): Do copy DECL_VISIBILITY_SPECIFIED from
template.
(determine_visibility_from_class): Reverse sense of
DECL_VISIBILITY_SPECIFIED test for target-specific visibility rules.
(constrain_class_visibility): Only complain about member visibility
if the member type is another class. Don't change visibility of the
current class.
* tree.c (remove_attribute): New fn.
* tree.h: Declare it.
From-SVN: r115622
* tree.h (categorize_ctor_elements): Adjust prototype and add
descriptive comment, both in accordance with the interface change
described below.
* varasm.c (constructor_static_from_elts_p): New function.
Whether a constructor node is a valid static constant initializer
if all its elements are.
(initializer_constant_valid_p) <CONSTRUCTOR value>: Use it.
* output.h: Declare it.
* expr.c (categorize_ctor_elements_1): Return whether the constructor
is a valid constant initializer instead of computing the number of
non-constant elements. Use constructor_static_from_elts_p for this
purpose. Replace the head comment with an indication that this is a
helper for categorize_ctor_elements.
(categorize_ctor_elements): Same interface change as for the _1
helper. Former head comment from this helper moved here, adjusted to
account for the interface changes.
(mostly_zeros_p): Adjust call to categorize_ctor_elements.
(all_zeros_p): Likewise.
* gimplify.c (gimplify_init_constructor): Decide whether we can make
static versions of the constructor from the categorize_ctor_elements
return value instead of the formerly computed number of non-constant
elements.
* gnat.dg/outer_agg_bitfield_constructor.adb: New test.
* gnat.dg/nested_agg_bitfield_constructor.adb: New test.
From-SVN: r115553
* tree.c (range_in_array_bounds_p): New predicate.
* tree.h (range_in_array_bounds_p): Declare it.
* tree-eh.c (tree_could_trap_p) <ARRAY_RANGE_REF>: Use it to
return a less conservative answer.
* tree-sra.c (struct sra_elt): Add new pointer field 'groups'
and flag 'is_group'.
(IS_ELEMENT_FOR_GROUP): New macro.
(FOR_EACH_ACTUAL_CHILD): Likewise.
(next_child_for_group): New helper function.
(can_completely_scalarize_p): Take into account groups.
(sra_hash_tree): Handle RANGE_EXPR.
(sra_elt_eq): Likewise.
(lookup_element): Be prepared for handling groups.
(is_valid_const_index): Delete.
(maybe_lookup_element_for_expr) <ARRAY_REF>: Use in_array_bounds_p
instead of is_valid_const_index.
<ARRAY_RANGE_REF>: New case.
(sra_walk_expr) <ARRAY_REF>: Use in_array_bounds_p instead of
is_valid_const_index.
<ARRAY_RANGE_REF>: Do not unconditionally punt.
(scan_dump): Dump info for groups too.
(decide_instantiation_1): Likewise.
(decide_block_copy): Assert that the element is not a group.
Propagate decision to groups.
(generate_one_element_ref): Handle RANGE_EXPR.
(mark_no_warning): Iterate over actual childs.
(generate_copy_inout): Likewise.
(generate_element_copy): Likewise.
(generate_element_zero): Likewise.
(generate_element_init_1): Likewise.
(dump_sra_elt_name): Handle RANGE_EXPR.
From-SVN: r115160
* tree.c (max_int_size_in_bytes): New function, inspired from
code in function.c:assign_temp.
* tree.h (max_int_size_in_bytes): Declare.
* function.c (assign_temp): Use it.
* gimplify.c (create_tmp_var): Relax the assertions on the type
properties, not mandating constant size any more.
(force_constant_size): New static function.
(gimple_add_tmp_var): Use it, forcing variable size to a
constant upper bound if it is not constant on entry.
* ada/misc.c (gnat_type_max_size): Look at TYPE_ADA_SIZE if we have
not been able to get a constant upper bound from TYPE_SIZE_UNIT.
* gnat.dg/varsize_temp.adb: New test.
From-SVN: r114938
2006-06-15 Richard Guenther <rguenther@suse.de>
* fold-const.c (fold_truth_not_expr): Rename from
invert_truthvalue. Give it fold_* semantics to avoid
generating garbage.
(invert_truthvalue): New function. Wrapper around
fold_truth_not_expr.
(optimize_minmax_comparison): Avoid creating garbage.
(fold_unary): Use fold_truth_not_expr for folding
TRUTH_NOT_EXPR.
(fold_ternary): Replace uses of invert_truthvalue with
fold_truth_not_expr where applicable.
* tree.h (fold_truth_not_expr): Prototype.
From-SVN: r114683
gcc:
* tree.h: Declare folding_initializer.
* builtins.c (fold_builtin_constant_p): Give definite answer
if folding inside an initializer.
* fold-const.c: Define folding_initializer.
(START_FOLD_INIT): Save and then set folding_initializer.
(END_FOLD_INIT): Restore folding_initializer.
gcc/testsuite:
* gcc.c-torture/compile/builtin_constant_p.c: New test.
From-SVN: r114358
PR tree-optimization/26830
* tree-into-ssa.c (struct ssa_name_info): Add age field.
(info_for_ssa_name, current_info_for_ssa_name_age,
blocks_to_update): New variables.
(get_ssa_name_ann): Use info_for_ssa_name instead of SSA_NAME_AUX.
(clear_ssa_name_info, initialize_flags_in_bb,
mark_block_for_update): New functions.
(mark_def_sites, rewrite_stmt): Assert that blocks_to_update is NULL.
(insert_phi_nodes_for, mark_use_interesting, prepare_block_for_update,
prepare_def_site_for): Use mark_block_for_update.
(mark_def_interesting): Assert that the processed block is marked in
blocks_to_update. Do not take blocks argument.
(prepare_use_sites_for, prepare_names_to_update): Do not take blocks
argument.
(rewrite_update_init_block, rewrite_update_stmt): Only process
blocks with statements to rewrite.
(delete_update_ssa): Do not clear SSA_NAME_AUX.
(update_ssa): Initialize and free blocks_to_update. Do not
clear flags on statements. Do not use blocks bitmap.
* tree.h (SSA_NAME_AUX): Removed.
(struct tree_ssa_name): Removed aux field.
* print-tree.c (print_node): Do not print SSA_NAME_AUX.
From-SVN: r113799
2006-04-08 Daniel Berlin <dberlin@dberlin.org>
* tree.h (tree_memory_tag): Add old_used_alone.
(SMT_OLD_USED_ALONE): New macro.
* tree-ssa-alias.c (recalculate_used_alone): Stop
marking things for renaming unnecessarily.
From-SVN: r112789
2006-03-25 Daniel Berlin <dberlin@dberlin.org>
PR tree-optimization/26804
* tree.h (DECL_CALL_CLOBBERED): New macro.
(tree_decl_common): Add call_clobbered_flag.
* tree-flow-inline.h (is_call_clobbered): Use DECL_CALL_CLOBBERED.
(mark_call_clobbered): Set DECL_CALL_CLOBBERED.
(clear_call_clobbered): Clear DECL_CALL_CLOBBERED.
(mark_non_addressable): Ditto.
* tree-ssa.c (verify_call_clobbered): New function.
(verify_alias_info): Use it.
* tree-pass.h (pass_reset_cc_flags): New prototype.
* tree-ssa-alias.c (pass_reset_cc_flags): New structure.
(reset_cc_flags): New function.
* passes.c (init_optimization_passes): Call reset_cc_flags after
initializing referenced_vars.
From-SVN: r112380
* tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
Update all users.
* tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
Update all users.
(TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
Update all users.
* tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
Update all users.
* tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
to 'symbol_mem_tag'.
Update all users.
* doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
rename.
From-SVN: r111617
* tree.h (PHI_ARG_NONZERO): Remove.
* tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
(remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
node to the new node.
From-SVN: r111400
2006-02-20 Daniel Berlin <dberlin@dberlin.org>
* tree.h (struct tree_memory_tag): Add is_used_alone member.
(TMT_USED_ALONE): New macro.
* tree-pass.h (PROP_tmt_usage): New property.
(TODO_update_tmt_usage): New todo.
* tree-ssa-alias.c (updating_used_alone): New variable.
(recalculate_used_alone): New function.
(compute_may_aliases): Set updating_used_alone, call
recalculate_used_alone.
* tree-sra.c (pass_sra): Note that this pass destroys
PROP_tmt_usage, and add TODO_update_tmt_usage.
* tree-ssa-forwprop.c (pass_forwprop): Ditto.
* tree-flow.h (updating_used_alone): Prototype.
(recalculate_used_alone): Ditto.
* passes.c (execute_todo): Add code to set updating_used_alone,
and call recalculate.
* tree-ssa-operands.c (add_virtual_operand): Only append bare def
for clobber if used alone, and add assert to verify used_alone
status.
From-SVN: r111300
* tree-vrp.c (set_value_range_to_nonnegative): New function.
(vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
(ssa_name_nonzero_p): Likewise.
(get_value_range): Return NULL if VRP is not running.
(extract_range_from_expr): Fallback to tree_expr_XXX_p if
VRP routines do not discover a range.
(vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
* tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
* fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
(tree_expr_nonnegative_p): Similarly.
* tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
(restore_nonzero_vars_to_original_value): Remove.
(unsafe_associative_fp_binop): Remove.
(tree_ssa_dominator_optimize): Remove initialization and
finalization of nonzero_vars and nonzero_vars_stack.
(dom_opt_initialize_block): No longer push marker on
nonzero_vars_stack.
(dom_opt_finalize_block): No longer call
restore_nonzero_vars_to_original_value.
(record_equivalences_from_phis): No longer look for
nonzero PHI arguments.
(cprop_into_successor_phis): No longer propagate nonzero
property into PHI arguments. Lose unused argument. Caller
updated.
(record_equivalences_from_stmt): No longer record nonzero
values for SSA_NAMEs.
(lookup_avail_expr): No longer use nonzero_vars.
* gcc.dg/tree-ssa/vrp24.c: Update expected output.
* gcc.dg/tree-ssa/vrp26.c: New test.
From-SVN: r111175
PR inline-asm/16194
gcc:
* tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
(tree_overlaps_hard_reg_set): Declare.
* stmt.c (decl_overlaps_hard_reg_set_p): Now static. Change return
type and signature to match function type expected by walk_tree.
(tree_overlaps_hard_reg_set): New function.
(decl_conflicts_with_clobbers_p): Rename to:
(tree_conflicts_with_clobbers_p). Take HARD_REG_SET * argument.
Use tree_overlaps_hard_reg_set. Changed caller.
* doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
* cris.c (cris_md_asm_clobbers): Likewise.
gcc/testsuite:
* gcc.dg/pr16194.c: New test.
From-SVN: r110810
