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PR tree-optimization/18587
* tree-flow-inline.h (mark_call_clobbered, mark_non_addressable): Flag
call clobbered caches as invalid.
* tree-ssa-operands.c (ssa_call_clobbered_cache_valid): New. Flag
indicating whether the call clobbered operand cache is valid.
(ssa_ro_call_cache_valid): New. Flag indicating whether the pure/const
call operand cache is valid.
(clobbered_v_may_defs, clobbered_vuses, ro_call_vuses): New.
cached list of operands for cached call virtual operands.
(clobbered_aliased_loads, clobbered_aliased_stores,
ro_call_aliased_load): New. flags caching whether alias bits are to be
set in call stmt's. */
(fini_ssa_operands): Remove call operand caches if present.
(get_expr_operands, get_asm_expr_operands, get_indirect_ref_operands):
Pass stmt annotation to add_stmt_operand.
(get_call_expr_operands): Add call clobbered variables first.
(add_stmt_operand): Take stmt annotation rather than stmt as a param.
(add_call_clobber_ops, add_call_read_ops): Use the call operand cache
if it is valid, otherise fill the cache.
* tree-ssa-operands.h (ssa_clobbered_cache_valid): Declare extern.
* tree-flow.h (struct var_ann_d): Add in_vuse_list and in_v_may_def_list
bits.
* tree-ssa-operands.c (cleanup_v_may_defs): New. Clear the in_list bits
for the v_may_def elements and empty the operand build array.
(finalize_ssa_vuses): Use cleanup_v_may_defs and remove redundant VUSES
by checking the in_v_may_def_list bit.
(append_v_may_def, append_vuse): Use the in_list bit rather than
scanning the array for duplicates.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@91305 138bc75d-0d04-0410-961f-82ee72b054a4
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greater than PHI_ARG_CAPACITY.
(reserve_phi_args_for_new_edge): Initialize the new PHI
argument to NULL_TREE. Increment PHI_NUM_ARGS.
(add_phi_arg): Add a PHI argument to the slot given by
E->dest_idx.
(remove_phi_arg_num): Do not write to PHI_ARG_EDGE.
* tree-flow-inline (phi_arg_from_edge): Return E->dest_idx.
* tree-ssa.c (ssa_redirect_edge): Check for a missing PHI
argument by looking at PHI_ARG_DEF.
(verify_phi_args): Check for a missing PHI argument. Remove
the check for duplicate PHI arguments.
* tree.h (PHI_ARG_EDGE): Redefine in terms of EDGE_PRED.
(phi_arg_d): Remove e.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@91097 138bc75d-0d04-0410-961f-82ee72b054a4
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Fix PR tree-optimization/17133
* tree-cfg.c (rewrite_to_new_ssa_names_bb): Also rewrite must
def kill operand.
* tree-flow-inline.h: V_MUST_DEF_OP became V_MUST_DEF_RESULT.
(get_v_must_def_result_ptr): Modify for new structure of
v_must_defs array.
(get_v_must_def_kill_ptr): New.
(op_iter_next_use): Add support for the kill that occurs in V_MUST_DEFs.
(op_iter_next_tree): Ditto. Also V_MAY_DEF_OP became V_MAY_DEF_RESULT.
(op_iter_next_def): V_MAY_DEF_OP became V_MAY_DEF_RESULT.
(op_iter_init): Initialize new mustu members.
(op_iter_next_mustdef): New function.
(op_iter_init_mustdef): Ditto.
* tree-flow.h (rewrite_def_def_chains): New function.
* tree-into-ssa.c (mark_def_sites): Handle mustdefkill operands.
(ssa_mark_def_sites): Ditto.
(rewrite_stmt): Ditto.
(ssa_rewrite_stmt): Ditto.
(rewrite_blocks): Factor out from rewrite_into_ssa.
(mark_def_block_sites): Ditto.
(rewrite_def_def_chains): New function, just rewrites def-def
chains without phi node insertion.
* tree-pass.h (TODO_fix_def_def_chains): New todo flag.
* tree-optimize.c (execute_todo): Handle TODO_fix_def_def_chains.
* tree-pretty-print.c (dump_vops): Print out MUST_DEF's so that
they include the rhs now.
* tree-ssa-ccp.c (visit_assignment): V_MUST_DEF_OP became
V_MUST_DEF_RESULT.
* tree-ssa-dce.c (mark_operand_necessary): Add phionly argument.
Update callers.
(mark_really_necessary_kill_operand_phis): New function.
(perform_tree_ssa_dce): Call it.
(pass_dce): Add TODO_fix_def_def_chains.
(pass_cd_dce): Ditto.
* tree-ssa-loop-im.c (determine_max_movement): Look at kills as
well.
(rewrite_mem_refs): Ditto.
* tree-ssa-loop-manip.c (find_uses_to_rename_stmt): Look at kills
as well.
* tree-ssa-operands.c (allocate_v_may_def_optype):
v_may_def_operand_type_t became v_def_use_operand_type_t.
(allocate_v_must_def_optype) Ditto.
(finalize_ssa_v_must_defs): Update for new operand type, as well
as setting the use portion as well.
(copy_virtual_operands): Copy the kill operand as well.
(create_ssa_artficial_load_stmt): V_MUST_DEF_OP became
V_MUST_DEF_RESULT.
* tree-ssa-operands.h (v_may_def_operand_type): Renamed to
v_def_use_operand_type.
(v_must_def_optype_d): Use v_def_use_operand_type.
(V_MUST_DEF_OP_*): Renamed to V_MUST_DEF_RESULT_*
(V_MUST_DEF_KILL_*): New macros.
(struct ssa_operand_iterator_d): Add num_v_mustu and v_mustu_i
members.
Rename existing must_i and num_v_must members to mustd_i and
num_v_mustd.
(SSA_OP_VMUSTDEFKILL): New flag.
(SSA_OP_VIRTUAL_KILLS): New flag.
(SSA_OP_ALL_OPERANDS): Add in SSA_OP_ALL_KILLS.
(SSA_OP_ALL_KILLS): New flag.
(FOR_EACH_SSA_MUSTDEF_OPERAND): New macro.
* tree-ssa.c (verify_ssa): Verify virtual kills as well.
* tree-vectorizer.c (vect_create_data_ref_ptr): V_MUST_DEF_OP
became V_MUST_DEF_RESULT.
(rename_variables_in_bb): Rename kill pointer as well.
* tree-dfa.c (compute_immediate_uses_for_stmt): Add kills into the
immediate uses.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@89695 138bc75d-0d04-0410-961f-82ee72b054a4
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for ENTRY_BLOCK_PTR and EXIT_BLOCK_PTR.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@88714 138bc75d-0d04-0410-961f-82ee72b054a4
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* tree-dfa.c (compute_immediate_uses, add_immediate_use,
redirect_immediate_use): Use PHI_DF.
* tree-flow-inline.h (stmt_ann): Abort on phi nodes.
(bb_for_stmt): Use PHI_BB.
(get_immediate_uses): Use PHI_DF.
* tree-ssa-dse.c (max_stmt_uid): New variable.
(get_stmt_uid): New function.
(dse_optimize_stmt, dse_record_phis, tree_ssa_dse): Do not use phi
node annotations.
* tree-ssa-loop-im.c (LIM_DATA): Do not use phi statement annotations.
(max_uid): Renamed to max_stmt_uid.
(get_stmt_uid): New function.
(maybe_queue_var, single_reachable_address, determine_lsm): Do not use
phi node annotations.
* tree-ssa.c (replace_immediate_uses): Do not use phi node annotations.
* tree.h (PHI_BB, PHI_DF): New accessor functions.
(struct tree_phi_node): Add bb and df fields.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@87369 138bc75d-0d04-0410-961f-82ee72b054a4
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Use gcc_assert, gcc_unreachable & internal_error instead of abort.
* timevar.c (timevar_push, timevar_pop, timevar_start,
timevar_stop): Likewise.
* toplev.c (default_pch_valid_p): Likewise.
* tracer.c (tail_duplicate): Likewise.
* tree-alias-common.c (get_alias_var_decl,
get_values_from_constructor, create_alias_var, delete_alias_vars,
empty_points_to_set, same_points_to_set, ptr_may_alias_var):
Likewise.
* tree.c (tree_size, make_node_stat, copy_node_stat,
build_int_cst_wide, integer_all_onesp, list_length, chainon,
tree_node_structure, type_contains_placeholder_p, substitute_in_expr,
substitute_placeholder_in_expr, tabilize_reference_1, build0_stat,
build1_stat, build2_stat, build3_stat, build4_stat, is_attribute_p,
lookup_attribute, type_hash_canon, host_integerp, iterative_hash_expr,
build_method_type_directly, decl_type_context, get_callee_fndecl,
get_set_constructor_bits, build_vector_type_for_mode, int_cst_value,
tree_fold_gcd): Likewise.
* tree-cfg.c (create_bb, make_ctrl_stmt_edges, make_exit_edges,
make_cond_expr_edges, group_case_labels, tree_merge_blocks,
cleanup_control_expr_graph, find_taken_edge,
find_taken_edge_switch_expr, phi_alternatives_equal,
is_ctrl_altering_stmt, disband_implicit_edges, set_bb_for_stmt,
stmt_for_bsi, tree_find_edge_insert_loc, bsi_insert_on_edge_immediate,
tree_split_edge, tree_verify_flow_info, thread_jumps,
tree_redirect_edge_and_branch, tree_flow_call_edges_add): Likewise.
* tree-chrec.c (chrec_fold_poly_cst, chrec_fold_plus_poly_poly,
chrec_fold_multiply_poly_poly): Likewise.
* tree-complex.c (extract_component, expand_complex_division,
expand_complex_comparison, expand_complex_operations_1,
build_replicated_const, expand_vector_operations_1): Likewise.
* tree-data-ref.c (tree_fold_bezout, build_classic_dist_vector,
build_classic_dir_vector): Likewise.
* tree-dfa.c (compute_immediate_uses_for_phi,
compute_immediate_uses_for_stmt, create_var_ann, create_stmt_ann,
create_tree_ann, collect_dfa_stats, get_virtual_var): Likewise.
* tree-dump.c (dequeue_and_dump): Likewise.
* tree-eh.c (record_stmt_eh_region, add_stmt_to_eh_region,
record_in_finally_tree, replace_goto_queue_1,
maybe_record_in_goto_queue, verify_norecord_switch_expr,
do_return_redirection): Likewise.
* tree-if-conv.c (tree_if_convert_stmt, tree_if_convert_cond_expr,
add_to_dst_predicate_list, find_phi_replacement_condition,
replace_phi_with_cond_modify_expr, get_loop_body_in_if_conv_order):
Likewise.
* tree-inline.c (remap_decl, remap_type, remap_decls, copy_body_r,
initialize_inlined_parameters, declare_return_variable,
estimate_num_insns_1, expand_call_inline, expand_calls_inline,
optimize_inline_calls, copy_tree_r): Likewise.
* tree-into-ssa.c (rewrite_initialize_block_local_data, rewrite_stmt,
ssa_rewrite_stmt, rewrite_into_ssa): Likewise.
* tree-iterator.c (alloc_stmt_list, tsi_link_before, tsi_link_after,
tsi_split_statement_list_after, tsi_split_statement_list_before):
Likewise.
* tree-mudflap.c (mf_varname_tree): Likewise.
* tree-nested.c (create_tmp_var_for, lookup_field_for_decl,
lookup_tramp_for_decl, convert_all_function_calls): Likewise.
* tree-optimize.c (tree_rest_of_compilation): Likewise.
* tree-outof-ssa.c (create_temp, eliminate_build, eliminate_phi,
coalesce_abnormal_edges, coalesce_ssa_name, eliminate_virtual_phis,
free_temp_expr_table, add_dependance, finish_expr, rewrite_trees):
Likewise.
* tree-phinodes.c (resize_phi_node, add_phi_arg,
remove_all_phi_nodes_for): Likewise.
* tree-pretty-print.c (op_prio, print_call_name): Likewise.
* tree-profile.c (tree_gen_interval_profiler, tree_gen_pow2_profiler,
tree_gen_one_value_profiler, tree_gen_const_delta_profiler): Likewise.
* tree-sra.c (type_can_instantiate_all_elements, sra_hash_tree,
sra_elt_eq, sra_walk_expr, instantiate_missing_elements,
generate_one_element_ref, generate_element_copy,
generate_element_zero, scalarize_copy, scalarize_init,
scalarize_ldst): Likewise.
* tree-ssa-alias.c (delete_alias_info, group_aliases, may_alias_p,
add_may_alias, add_pointed_to_expr, add_pointed_to_var,
collect_points_to_info_r, get_tmt_for, get_ptr_info): Likewise.
* tree-ssa.c (walk_use_def_chains, check_phi_redundancy): Likewise.
* tree-ssa-ccp.c (dump_lattice_value, get_default_value, get_value,
set_lattice_value, likely_value, ccp_visit_phi_node, visit_assignment,
widen_bitfield, ccp_fold_builtin): Likewise.
* tree-ssa-copy.c (may_propagate_copy, merge_alias_info,
replace_exp_1, propagate_tree_value): Likewise.
* tree-ssa-copyrename.c (copy_rename_partition_coalesce): Likewise.
* tree-ssa-dce.c (set_control_dependence_map_bit,
find_control_dependence, find_pdom, mark_operand_necessary,
mark_stmt_if_obviously_necessary,
mark_control_dependent_edges_necessary, remove_dead_stmt): Likewise.
* tree-ssa-dom.c (dom_opt_initialize_block_local_data,
simplify_switch_and_lookup_avail_expr, cprop_into_successor_phis,
eliminate_redundant_computations, avail_expr_eq): Likewise.
* tree-ssa-dse.c (fix_stmt_v_may_defs): Likewise.
* tree-ssa-loop-ch.c (should_duplicate_loop_header_p,
duplicate_blocks): Likewise.
* tree-ssa-loop-im.c (for_each_index, set_level,
is_call_clobbered_ref): Likewise.
* tree-ssa-loop-ivopts.c (dump_use, divide, stmt_after_ip_normal_pos,
stmt_after_increment, set_iv, contains_abnormal_ssa_name_p,
find_interesting_uses_outer_or_nonlin, add_derived_ivs_candidates,
peel_address, ptr_difference_cost, may_replace_final_value,
determine_use_iv_cost, rewrite_use_nonlinear_expr, rewrite_use_outer,
rewrite_use, rewrite_uses): Likewise.
* tree-ssa-loop-manip.c (rewrite_into_loop_closed_ssa,
check_loop_closed_ssa_use): Likewise.
* tree-ssanames.c (make_ssa_name): Likewise.
* tree-ssa-operands.c (finalize_ssa_defs, finalize_ssa_uses,
finalize_ssa_v_must_defs, finalize_ssa_stmt_operands,
get_stmt_operands, get_expr_operands, get_asm_expr_operands,
get_indirect_ref_operands, add_stmt_operand): Likewise.
* tree-ssa-pre.c (value_exists_in_set_bitmap,
value_remove_from_set_bitmap, bitmap_insert_into_set, insert_into_set,
phi_translate, valid_in_set, compute_antic,
find_or_generate_expression, create_expression_by_pieces, insert_aux,
create_value_expr_from, eliminate): Likewise.
* tree-ssa-propagate.c (cfg_blocks_get): Likewise.
* tree-ssa-threadupdate.c (remove_last_stmt_and_useless_edges):
Likewise.
* tree-tailcall.c (independent_of_stmt_p, adjust_return_value,
eliminate_tail_call): Likewise.
* tree-vectorizer.c (vect_create_index_for_array_ref,
vect_align_data_ref, vect_create_data_ref,
vect_create_destination_var, vect_get_vec_def_for_operand,
vect_finish_stmt_generation, vect_transform_stmt,
vect_transform_loop_bound, vect_transform_loop,
vect_analyze_operations): Likewise.
* tree-vn.c (vn_compute, set_value_handle, get_value_handle):
Likewise.
* tree-flow-inline.h (var_ann, get_var_ann, get_def_from_ptr,
get_use_op_ptr, immediate_use, phi_ssa_name_p, bsi_start,
bsi_after_labels, bsi_last): Likewise.
* tree-ssa-live.c (var_union, change_partition_var,
create_ssa_var_map, calculate_live_on_entry, root_var_init,
type_var_init, add_coalesce, sort_coalesce_list, pop_best_coalesce):
Likewise.
* tree-ssa-live.h (partition_is_global, live_entry_blocks,
tpa_find_tree): Likewise.
(register_ssa_partition_check): Declare.
(register_ssa_partition): use it.
* tree-ssa-live.c: Include errors.h.
(register_ssa_partition_check): New.
* tree-ssa-operands.c: Include errors.h.
* Makefile.in (tree-ssa-operands.o): Depend on errors.h.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@87223 138bc75d-0d04-0410-961f-82ee72b054a4
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* tree-ssa-operands.h (struct ssa_operand_iterator_d): New. SSA operand
iterator controlling structure.
(SSA_OP_USE, SSA_OP_DEF, SSA_OP_VUSE, SSA_OP_VMAYUSE, SSA_OP_VMAYDEF,
SSA_OP_VMUSTDEF, SSA_OP_VIRTUAL_USES, SSA_OP_VIRTUAL_DEFS,
SSA_OP_ALL_USES, SSA_OP_ALL_DEFS, SSA_OP_ALL_OPERANDS): New. Operand
iterator flags.
(FOR_EACH_SSA_TREE_OPERAND): New. Iterate over operands as trees.
(FOR_EACH_SSA_USE_OPERAND): New. Iterate over operands as uses.
(FOR_EACH_SSA_DEF_OPERAND): New. Iterate over operands as defs.
(FOR_EACH_SSA_MAYDEF_OPERAND): New. Iterate over V_MAY_DEFs.
* tree-ssa-operands.c (NULL_DEF_OPERAND_P, NULL_USE_OPERAND_P): New.
Empty operand pointers.
* tree-flow-inline.h (op_iter_done): New. Return true if finished.
(op_iter_next_use): New. Return next use_operand_p.
(op_iter_next_def): New. Return next def_operand_p.
(op_iter_next_tree): New. Return next operands as a tree.
(op_iter_init): New. Initialize an iterator structure.
(op_iter_init_use): New. Initialize structure and get the first use.
(op_iter_init_def): New. Initialize structure and get the first def.
(op_iter_init_tree): New. Initialize structure and get the first tree.
(op_iter_next_maydef): New. Return next V_MAY_DEF operands.
(op_iter_init_maydef): New. Initialize structure and get the first
V_MAY_DEF operands.
* tree-cfg.c (tree_duplicate_bb): Use new operand iterator.
* tree-dfa.c (compute_immediate_uses_for_stmt,
redirect_immediate_uses): Use new operand iterator.
(v_may_defs_disappeared_p, v_must_defs_disappeared_p): Delete.
(mark_new_vars_to_rename): Use new operand iterator. Count virtual
operands instead of using *_disappeared_p routines.
* tree-into-ssa.c (mark_def_sites, ssa_mark_def_sites, rewrite_stmt,
ssa_rewrite_stmt): Use new operand iterator.
* tree-outof-ssa.c (check_replaceable, find_replaceable_in_bb,
rewrite_trees): Use new operand iterator.
* tree-pretty-print.c (dump_vops): Use new operand iterator.
* tree-sra.c (mark_all_v_defs): Use new operand iterator.
* tree-ssa-alias.c (compute_points_to_and_addr_escape,
dump_points_to_info): Use new operand iterator.
* tree-ssa-ccp.c (cp_lattice_meet, visit_stmt, initialize,
replace_uses_in, replace_vuse_in, likely_value, set_rhs): Use new
operand iterator.
* tree-ssa-dce.c (mark_stmt_if_obviously_necessary,
propagate_necessity): Use new operand iterator.
* tree-ssa-dom.c (cprop_into_stmt, optimize_stmt): Use operand iterator.
(register_definitions_for_stmt): Use new operand iterator. Take stmt as
a parameter instead of a stmt_ann_t.
* tree-ssa-live.c (create_ssa_var_map, calculate_live_on_entry,
build_tree_conflict_graph): Use new operand iterator.
* tree-ssa-loop-im.c (determine_max_movement, single_reachable_address,
rewrite_mem_refs): Use new operand iterator.
* tree-ssa-loop-manip.c (find_uses_to_rename_stmt,
check_loop_closed_ssa_use): Use new operand iterator.
* tree-ssa.c (verify_ssa, replace_immediate_uses): Use operand iterator.
* tree-ssanames.c (release_defs): Use new operand iterator.
* tree-vectorizer.c (vect_create_data_ref): Use new operand iterator.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@86583 138bc75d-0d04-0410-961f-82ee72b054a4
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* tree.c (is_global_var): New function.
(needs_to_live_in_memory): Check for TREE_ADDRESSABLE.
Call is_global_var.
* tree.h (DECL_NEEDS_TO_LIVE_IN_MEMORY_INTERNAL): Remove.
Update all users.
(is_global_var): Declare.
* tree-dfa.c (dump_variable): Display global and addressable
attributes.
(add_referenced_var): Clarify documentation when marking
variables call-clobbered.
* tree-flow-inline.h (is_call_clobbered): Call is_global_var
instead of needs_to_live_in_memory.
(mark_call_clobbered): If the variable is a tag, mark it
DECL_EXTERNAL.
* tree-gimple.c (is_gimple_reg): Don't check for
TREE_ADDRESSABLE.
(is_gimple_non_addressable): Likewise.
* tree-ssa-alias.c (get_nmt_for): Always check whether the tag
needs to be marked call-clobbered.
(setup_pointers_and_addressables): Call is_global_var instead
of needs_to_live_in_memory.
* tree-ssa-dce.c (need_to_preserve_store): Remove.
Update all users with is_global_var.
(mark_stmt_if_obviously_necessary): Fix processing of aliased
stores. Don't check the virtual definitions. Rather, check
whether the store is going into global memory.
(find_obviously_necessary_stmts): Get the symbol from the PHI
result.
* tree-ssa-operands.c (get_call_expr_operands): Do not add
clobbering may-defs if the call does not have side effects.
libjava/ChangeLog
PR tree-optimization/16867
* testsuite/libjava.lang/PR16867.java: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@85874 138bc75d-0d04-0410-961f-82ee72b054a4
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* tree-flow-inline.h (get_def_ops, get_use_ops, get_v_may_def_ops,
get_vuse_ops,get_v_must_def_ops): Add operand structure reference.
(get_v_may_def_result_ptr, get_v_may_def_op_ptr): New access struct.
(start_ssa_stmt_operands): Delete.
* tree-flow.h (struct stmt_ann_d): Replace operand vectors with new
struct stmt_operands_d.
(build_ssa_operands): New extern entry point.
* tree-ssa-dom.c (record_equivalences_from_stmt): Remove operand
building code, replace with create_ssa_artficial_load_stmt().
* tree-ssa-operands.c (struct voperands_d): Delete.
(allocate_v_may_def_optype): Allocate v_may_def_operand_type_t vector.
(allocate_v_must_def_optype): Use sizeof (tree), not sizeof (tree *).
(free_uses, free_defs, free_vuses, free_v_may_defs,
free_v_must_defs): Remove dealloc parameter.
(remove_vuses, remove_v_may_def, remove_v_must_defs): Delete.
(finalize_ssa_defs, finalize_ssa_uses, finalize_ssa_v_may_defs,
finalize_ssa_vuses, finalize_ssa_v_must_defs): Perform all operand
vector comparisons, ssa_name reuse, and allocations here.
(verify_start_operands): Delete.
(finalize_ssa_stmt_operands): Set new operands by calling finalize
routines.
(start_ssa_stmt_operands): Move from tree-flow-inline.h.
(append_def, append_usei): Simplify to simple accumulation.
(append_v_may_def, append_vuse, append_v_must_def): Simplify to avoiding
duplicates and simple accumulation.
(free_ssa_operands): Free vectors in a stmt_operand structure.
(build_ssa_operands): New. Create a new stmt_operand structure from
a stmt and an old set of stmt_operands.
(get_stmt_operands): Simplify and call build_ssa_operands.
(get_expr_operands, get_asm_expr_operands, get_indirect_ref_operands,
get_call_expr_operands, add_stmt_operand, add_call_clobber_ops,
add_call_read_ops): Don't pass prev_vops around anymore.
(note_addressable): Return if no stmt annotation.
(copy_virtual_operands): Access v_may_def operands through a struct.
(create_ssa_artficial_load_stmt): New. Create a load stmt for DOM's
hash tables without treating the stmt as a real stmt.
* tree-ssa-operands.h (struct v_may_def_operand_type): New. Access
v_may_def def and use through a struct instead of 2 array elements.
(struct v_may_def_optype_d): Use v_may_def_operand_type.
(struct stmt_operands_d): New. Struct for storing all operand vectors.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@85807 138bc75d-0d04-0410-961f-82ee72b054a4
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* expr.h (fix_lexical_addr): Remove.
* function.c (NEED_SEPARATE_AP): Remove.
(fix_lexical_addr): Remove.
* tree-alias-common.c (get_alias_var_decl): Check TREE_STATIC,
not null decl_function_context.
(create_alias_vars): Likewise.
* tree-cfg.c (make_ctrl_stmt_edges): Don't check for non-local labels.
(simple_goto_p): Likewise.
* tree-dfa.c (add_referenced_var): Don't check for non-local variables.
* tree-ssa-ccp.c (get_default_value): Likewise.
* tree-tailcall.c (suitable_for_tail_opt_p): Likewise.
* tree.c (needs_to_live_in_memory): Likewise.
* tree-flow-inline.h (may_be_aliased): Move...
* tree-ssa-alias.c (may_be_aliased): ... here. Enhance check for
when TREE_STATIC variables may be addressable.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@85099 138bc75d-0d04-0410-961f-82ee72b054a4
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TREE_THIS_VOLATILE, may_aliases, or optimization level.
(remove_useless_vars): Dump debugging info.
(expand_used_vars): Move ...
* cfgexpand.c (expand_used_vars): ... here. Make static.
* tree-flow-inline.h (set_is_used): New.
(set_default_def): Use get_var_ann.
* tree-flow.h: Update decls.
* tree-ssa-live.c (mark_all_vars_used_1, mark_all_vars_used): New.
(create_ssa_var_map): Use it.
* tree-ssa.c (set_is_used): Remove.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@85034 138bc75d-0d04-0410-961f-82ee72b054a4
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* gimple-low.c (expand_var_p): Don't check it.
* tree-ssa-alias.c (setup_pointers_and_addressables): Likewise.
* tree-ssa-copyrename.c (rename_ssa_copies): Likewise.
* tree-ssa-operands.c (add_stmt_operand): Likewise.
* tree-dfa.c (find_hidden_use_vars, find_hidden_use_vars_r): Kill.
(find_referenced_vars): Don't call them.
* tree-flow-inline.h (has_hidden_use, set_has_hidden_use): Kill.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@84830 138bc75d-0d04-0410-961f-82ee72b054a4
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(current_loops): Declare.
* tree-chrec.c (chrec_not_analyzed_yet,
chrec_dont_know, chrec_known, count_ev_in_wider_type,
chrec_contains_symbols_defined_in_loop): Remove the temporary
hooks.
* tree-flow-inline.h (loop_containing_stmt): New function.
* tree-scalar-evolution.c: Add implementation.
* tree-scalar-evolution.h: Add declarations.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@84573 138bc75d-0d04-0410-961f-82ee72b054a4
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* tree-ssa-copy.c (may_propagate_copy): ... here. Fail if we
attempt to copy between types requiring conversion.
* tree-flow.h (may_propagate_copy): Update decl.
* tree-ssa-dom.c (cprop_operand): Tidy redundant tests.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@84225 138bc75d-0d04-0410-961f-82ee72b054a4
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* gengtype-lex.l: Temporary kludge to avoid duplicate typedef.
* gengtype.c: Update for now typdefs in input.h. More kludges.
* modulo-sched.c (sms_schedule): Use NOTE_EXPANDED_LOCATION macro.
* ra-debug.c (ra_print_rtl): Likewise.
* sched-rgn.c: Likewise.
* sched-vis.c: Likewise.
* rtl.h (gen_rtx_ASM_OPERANDS): Redefine if USE_MAPPED_LOCATION.
* stmt.c (expand_asm_operands): Adjust calls to gen_rtx_ASM_OPERANDS.
* tree-cfg.c: Use new macros and typedefs.
* tree-flow-inline.h: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@83922 138bc75d-0d04-0410-961f-82ee72b054a4
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* flags.h (flag_tree_fre): Declare.
* opts.c (decode_options): Set.
* timevar.def (TV_TREE_FRE): Define.
* tree-flow-inline.h (may_propagate_copy): Re-arrange for
readability. Handle destinations that are not SSA_NAMEs.
* tree-flow.h (struct ptr_info_def): Move from tree.h
(cprop_into_stmt, cprop_into_successor_phis): Remove.
(vn_compute, vn_lookup_or_add, vn_add, vn_lookup): Add
vuse_optype parameter.
* tree-pass.h (pass_fre): Declare.
* tree-ssa-copy.c (cprop_operand): Move to tree-ssa-dom.c
(cprop_into_stmt): Likewise.
(cprop_into_successor_phis): Likewise.
* tree-ssa-dom.c (eliminate_redundant_computations): Fix
argument ordering in call to may_propagate_copy.
* tree-ssa-pre.c (is_undefined_value): Assume hard registers
to be always defined.
(add_to_sets): New local function.
(create_value_expr_from): New local function.
(compute_avail): Call them.
(eliminate): Don't ignore statements with virtual operands.
(init_pre): New local function.
(fini_pre): New local function.
(execute_pre): Call them.
Add argument DO_FRE. Don't do insertion if DO_FRE is true.
(do_pre): New function.
(do_fre): New function.
(gate_fre): New function.
(pass_fre): Declare.
* tree-ssa.c (init_tree_ssa): Don't call vn_init.
(delete_tree_ssa): Don't call vn_delete.
* tree-vn.c (val_expr_pair_d): Add documentation.
(vn_compute): Add VUSES argument to incorporate in computing
hash values. Update all callers.
(expressions_equal_p): Call operand_equal_p with
OEP_PURE_SAME.
(vn_add): Add VUSES argument. Update all callers.
(vn_lookup): Likewise.
(vn_lookup_or_add): Likewise.
* doc/invoke.texi: Document -ftree-fre and -fdump-tree-fre.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@83837 138bc75d-0d04-0410-961f-82ee72b054a4
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Diego Novillo <dnovillo@redhat.com>
* tree-dfa.c (create_var_ann): tree_ann -> tree_ann_t.
(create_stmt_ann): Ditto.
(create_tree_ann): New function.
(create_cst_ann): Remove.
(create_expr_ann): Ditto.
* tree-flow-inline.h (cst_ann): Remove.
(get_cst_ann): Ditto.
(get_expr_ann): Ditto.
(expr_ann): Ditto.
(get_tree_ann): New function.
(tree_ann): Ditto.
(ann_type): tree_ann -> tree_ann_t.
* tree-flow.h (tree_ann_type): CST_ANN, EXPR_ANN removed.
(struct cst_ann_d): Removed.
(struct expr_ann_d): Ditto.
(union tree_ann_d): Removed cst and expr.
(tree_ann): Renamed to tree_ann_t.
* tree-ssa-ccp.c (set_rhs): tree_ann -> tree_ann_t.
* tree-ssa-pre.c (get_value_handle): Rewrite for single common
annotation.
(set_value_handle): Ditto.
(phi_translate): Ditto.
* tree-tailcall.c (adjust_return_value): tree_ann -> tree_ann_t.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@83349 138bc75d-0d04-0410-961f-82ee72b054a4
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* tree-cfg.c (tree_make_forwarder_block): Use SET_PHI_RESULT.
* tree-flow-inline.h (get_use_op_ptr): Return a use_operand_p.
(get_use_from_ptr, get_def_from_ptr): New. Return operand pointers.
(get_def_op_ptr): Return a def_operand_p instead of a 'tree *'.
(get_v_may_def_result_ptr): Return a def_operand_p.
(get_v_may_def_op_ptr, get_vuse_op_ptr): Return a use_operand_p.
(get_v_must_def_op_ptr): Return a def_operand_p.
(get_phi_result_ptr): New. Return a pointer to the result of a PHI.
(get_phi_arg_def_ptr): New. Return a pointer to an argument of a PHI.
(phi_element_for_edge): Remove.
* tree-flow.h (propagate_value, replace_exp): Change prototype.
(propagate_tree_value): Add new prototype.
(phi_element_for_edge): Remove prototype.
* tree-into-ssa.c (mark_def_sites): Use new operand types.
(prepare_operand_for_rename): Split into two functions.
(prepare_use_operand_for_rename): Prepare use operands.
(prepare_def_operand_for_rename): Prepare def operands.
(rewrite_stmt): Use new operand types.
(rewrite_operand): Use new operand types, change parameter type.
* tree-outof-ssa.c (replace_variable): Split into two functions.
(replace_use_variable): Rewrite uses.
(replace_def_variable): Rewrite defs.
(rewrite_trees, rewrite_vars_out_of_ssa): Use new operand types.
* tree-phinodes.c (make_phi_node, resize_phi_node): Use new types.
(add_phi_arg, remove_phi_arg_num): Use new operand types.
* tree-ssa-ccp.c (substitute_and_fold): Use new operand types.
(ccp_fold, replace_uses_in): Use new operand types.
* tree-ssa-copy.c (replace_ssa_names): Rename to replace_ssa_names_ann
and no longer set the value, change parameter type.
(replace_exp_1): Use new operand types.
(propagate_value): Change parameter type, use new operand types.
(propagate_tree_value): Propagate_value without SSA operands.
(replace_exp, cprop_operand, cprop_into_stmt): Use new operand types.
(cprop_into_successor_phis): Use new operand types.
* tree-ssa-dom.c (thread_across_edge): Use new operand types.
(eliminate_redundant_computations): Use new operand types.
* tree-ssa-dse.c (fix_phi_uses): Use new operand_types.
(fix_stmt_v_may_defs): Use new operand_types.
* tree-ssa-live.c (create_ssa_var_map): Use new operand_types.
(build_tree_conflict_graph): Use new operand_types.
* tree-ssa-loop.c (duplicate_blocks): Use PHI_ARG_DEF_FROM_EDGE.
* tree-ssa-operands.c (struct freelist_d): Remove.
(check_optype_freelist, add_optype_freelist): Remove.
(allocate_def_optype, allocate_use_optype, allocate_v_may_def_optype,
allocate_vuse_optype, allocate_v_must_def_optype): Call ggc_alloc.
(free_uses, free_defs, free_vuses, free_v_may_defs, free_v_must_defs):
Call ggc_free instead of add_optype_freelist.
(init_ssa_operands, fini_ssa_operands): Remove free list code.
(finalize_ssa_defs, finalize_ssa_uses): Set new use/def operands.
* tree-ssa-operands.h (struct def_optype_d): Change underlying type.
(struct use_optype_d): Change underlying type.
(def_operand_p, use_operand_p): New types for pointers to operands.
(USE_OP, DEF_OP, V_MAY_DEF_RESULT, V_MAY_DEF_OP, VUSE_OP,
V_MUST_DEF_OP): Use new pointer type instead of dereferencing directly.
(USE_FROM_PTR, DEF_FROM_PTR): New macros to "dereference" operand
pointer types.
(SET_USE, SET_DEF): New macros to set operands from their pointer.
(SET_USE_OP, SET_DEF_OP, SET_V_MAY_DEF_RESULT, SET_V_MAY_DEF_OP,
SET_VUSE_OP, SET_V_MUST_DEF_OP): New SET routines for operands.
(PHI_RESULT_PTR, PHI_RESULT, SET_PHI_RESULT): Macros to manage the
PHI result as an operand.
(PHI_ARG_DEF_PTR, PHI_ARG_DEF, SET_PHI_ARG_DEF, PHI_ARG_DEF_FROM_EDGE,
PHI_ARG_DEF_PTR_FROM_EDGE): Macros to manage the PHI arguments.
* tree-ssa-pre.c (eliminate): Call propagate_tree_value.
* tree-tailcall.c (independent_of_stmt_p, propagate_through_phis): Use
PHI_ARG_DEF_FROM_EDGE.
* tree.h (PHI_RESULT): Renamed to PHI_RESULT_TREE.
(PHI_ARG_DEF): Renamed to PHI_ARG_DEF_TREE.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@83298 138bc75d-0d04-0410-961f-82ee72b054a4
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* tree-cfg.c (tree_block_label): Export.
* tree-flow-inline.h (bsi_after_labels): New function.
* tree-flow.h (bsi_after_labels, tree_block_label): Declare.
* tree-ssa.c (propagate_into_addr): New function.
(replace_immediate_uses): Handle propagation of pointer constants.
(raise_value): Do not restrict propagation of pointer constants.
* tree-ssanames.c (duplicate_ssa_name): New function.
* tree.h (duplicate_ssa_name): Declare.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@83297 138bc75d-0d04-0410-961f-82ee72b054a4
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* (tree-cfg.c, tree-dfa.c, tree-flow-inline.h, tree-into-ssa.c,
tree-outof-ssa.c, tree-phinodes.c, tree-pretty-print.c,
tree-ssa-alias.c, tree-ssa-ccp.c, tree-ssa-dom.c, tree-ssa-dse.c,
tree-ssa-live.c, tree-ssa-loop.c, tree-ssa-phiopt.c, tree-ssa-pre.c,
tree-ssa.c, tree-tailcall.c): Use PHI_CHAIN instead of TREE_CHAIN
when traversing a list of PHI_NODEs.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@83273 138bc75d-0d04-0410-961f-82ee72b054a4
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* tree-flow-inline.h: Document all functions.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@83197 138bc75d-0d04-0410-961f-82ee72b054a4
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* tree-flow-inline.h (stmt_ann): Remove use of is_essa_node.
* tree-dfa.c (create_stmt_ann): Ditto.
* tree-pretty-print.c (dump_generic_node): Remove E* node handling.
* tree-inline.c (estimate_num_insns_1): Ditto.
* tree.c (tree_size): Ditto.
(make_node_stat): Ditto.
(tree_node_structure): Ditto.
(ephi_node_elt_check_failed): Remove.
(is_essa_node): Ditto.
* tree.def (EPHI_NODE): Ditto.
(EEXIT_NODE): Ditto.
(EUSE_NODE): Ditto.
(EKILL_NODE): Ditto.
* tree.h (EREF_NODE_CHECK): Remove.
(EPHI_NODE_ELT_CHECK): Ditto.
(struct tree_eref_common): Ditto.
(struct tree_euse_node): Ditto.
(struct ephi_arg_d): Ditto.
(struct tree_ephi_node): Ditto.
(ephi_node_elt_check_failed): Remove prototype.
(is_essa_node): Ditto.
(enum tree_node_structure_enum): Remove TS_E*_NODE.
(union tree_node): Remove E*_NODE uses.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@83196 138bc75d-0d04-0410-961f-82ee72b054a4
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* tree-ssa-dce.c (mark_control_dependent_edges_necessary):
Don't try to mark anything control dependent on the entry or
exit blocks.
2004-06-11 Daniel Berlin <dberlin@dberlin.org>
Fix Bug 15899
Fix Bug 15460
* tree.h (SSA_NAME_VALUE): New macro.
(struct tree_ssa_name): Add value_handle member.
* tree-ssa-pre.c: Replaced.
* tree-flow.h (tree_ann_type): Add CST_ANN, EXPR_ANN.
(struct cst_ann_d): New.
(struct expr_ann_d): New.
(union tree_ann_d): Add cst_ann, expr_ann.
* tree-dfa.c (create_cst_ann): New function.
(create_expr_ann): Ditto.
* tree-flow-inline.h (cst_ann): New function.
(expr_ann): Ditto.
(get_cst_ann): Ditto.
(get_expr_ann): Ditto..
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@83010 138bc75d-0d04-0410-961f-82ee72b054a4
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of V_MAY_DEF and V_MUST_DEF.
* tree-dfa.c (dfa_stats_d): Add num_v_must_defs and rename
num_vdefs to num_v_may_defs.
(compute_immediate_uses_for_stmt): Rename occurences of vdef
to v_may_def.
(redirect_immediate_uses): Ditto.
(dump_dfa_stats): Ditto. Also added code to dump num_v_must_defs.
(collect_dfa_stats_r): Rename occurences of vdef to v_may_def.
Also add code to sum up the number of v_must_defs.
(vdefs_disappeared_p): Replace with...
(v_may_defs_disappeared_p): This.
(v_must_defs_disappeared_p): New function.
(mark_new_vars_to_rename): Rename occurences of vdef to v_may_def.
Also add code to mark new variables found in V_MUST_DEFs for
renameing.
* tree-flow.h (stmt_ann_d): Add v_must_def_ops and replace
vdef_ops to v_may_def_ops.
(get_vdef_ops): Replace with...
(get_v_may_def_ops): This.
* tree-flow-inline.h (get_vdef_ops): Replace with...
(get_v_may_def_ops): This.
(get_v_must_def_ops): New function.
(get_vdef_result_ptr): Replace with...
(get_v_may_def_result_ptr): This.
(get_vdef_op_ptr): Ditto with...
(get_v_may_def_op_ptr); This.
(get_v_must_def_op_ptr): New function.
* tree-into-ssa.c (mark_def_sites): Rename occurences of vdef
to v_may_def. Also add code to mark statements with
V_MUST_DEFs as definition sites.
(rewrite_stmt): Rename occurences of vdef to v_may_def. Also
add code to register new V_MUST_DEFs made by the statement.
* tree-outof-ssa.c (VIRTUAL_PARTITION): Update comments.
(check_replaceable): Rename occurences of vdef to v_may_def. Also
add check for V_MUST_DEFs.
(find_replaceable_in_bb): Ditto.
* tree-pretty-print.c (dump_vops): Rename occurences of vdef
to v_may_def. Also add code to dump V_MUST_DEFs.
* tree-sra.c (mark_all_vdefs): Replace with...
(mark_all_v_may_defs): This.
(mark_all_v_must_defs): New function.
(create_scalar_copies): Replace call to mark_all_vdefs with
calls to mark_all_v_may_defs and mark_all_v_must_defs.
(scalarize_structures): Rename occurences of vdef to v_may_def.
Also add a check for V_MUST_DEFs.
(scalarize_modify_expr): Rename occurences of vdef to v_may_def.
* tree-ssa-alias.c (global_var): Update comment.
(compute_may_aliases): Ditto.
(compute_points_to_and_addr_escape): Rename occurences of vdef
to v_may_def. Also add code to mark variables in V_MUST_DEF
operands as being written to.
(group_aliases): Update comment.
(maybe_create_global_var): Ditto.
* tree-ssa.c (verify_ssa): Rename occurences of vdef to v_may_def.
Also add a check for V_MUST_DEFs on GIMPLE registers.
(replace_immediate_uses): Rename occurences of vdef to v_may_def.
* tree-ssa-ccp.c (visit_stmt): Rename occurences of vdef
to v_may_def. Also add code to mark all V_MUST_DEF operands
VARYING.
(initialize): Ditto.
(set_rhs): Rename occurences of vdef to v_may_def. Also add
code to update SSA_NAMEs in V_MUST_DEFs.
* tree-ssa-copy.c (cprop_into_stmt): Rename occurences of vdef
to v_may_def.
* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Rename
occurences of vdef to v_may_def. Also add code to mark statements
with V_MUST_DEFs as necessary.
(propagate_necessity): Rename occurences of vdef to v_may_def.
* tree-ssa-dom.c (redirect_edges_and_update_ssa_graph): Rename
occurences of vdef to v_may_def. Also add code to mark operands
in V_MUST_DEFs for renaming.
(eliminate_redundant_computations): Rename occurences of vdef
to v_may_def.
(record_equivalences_from_stmt): Rename occurences of vdef
to v_may_def. Also add code to record VUSEs for V_MUST_DEFs.
(optimize_stmt): Remove unnesessary variable vdefs. Update
comment.
(register_definitions_for_stmt): Rename occurences of vdef
to v_may_def. Also add code to register definitions made with
V_MUST_DEFs.
* tree-ssa-dse.c (fix_stmt_vdefs): Replace with...
(fix_stmt_v_may_defs): This.
(fix_phi_uses): Rename occurences of vdef to v_may_def.
(dse_optimize_stmt): Ditto.
* tree-ssa-live.c (create_ssa_var_map): Rename occurences of vdef
to v_may_def. Also add code to mark V_MUST_DEF operands as being
used in virtual operators.
* tree-ssa-loop.c (mark_defs_for_rewrite): Rename occurences of
vdef to v_may_def. Also add code to mark V_MUST_DEF operands for
renaming.
* tree-ssa-operands.c (opf_kill_def): New flag for killing
definitions.
(build_vdefs): Renamed to...
(build_v_may_defs): This.
(build_v_must_defs): New variable.
(voperands_d): Add v_must_def_ops and replace vdef_ops with
v_may_def_ops.
(append_vdef): Replace with...
(append_v_may_def): This.
(append_v_must_def): New function.
(NUM_FREE): Increment for V_MUST_DEF
(optype_freelist): Increment its size for V_MUST_DEF
(allocate_vdef_optype): Replace with...
(allocate_v_may_def_optype): This.
(allocate_v_must_def_optype): New function.
(free_vdefs): Replace with...
(free_v_may_defs): This.
(free_v_must_defs): New function.
(remove_vdefs): Replace with...
(remove_v_may_defs): This.
(remove_v_must_defs): New function.
(init_ssa_operands): Rename occurences of vdef to v_may_def. Also
add code to initialize build_v_must_defs.
(finalize_ssa_vdefs): Replace with...
(finalize_ssa_v_may_defs): This.
(finalize_ssa_vuses): Rename occurences of vdef to v_may_def.
(finalize_ssa_v_must_defs): New function.
(finalize_ssa_stmt_operands): Replace call to finalize_ssa_vdefs
with calls to finalize_ssa_v_may_defs and finalize_ssa_v_must_defs.
(verify_start_operands): Rename occurences of vdef to v_may_def.
Also add check for build_v_must_defs.
(get_stmt_operands): Rename occurences of vdef to v_may_def.
Also add code to handle V_MUST_DEFs and to use opf_kill_def for
killing definitions.
(get_expr_operands): Update comment and use opf_kill_def for
killing definitions.
(add_stmt_operand): Replace code that appends VDEFs with code
that appends V_MUST_DEFs when opf_kill_def is set and V_MAY_DEFs
otherwise.
(add_call_clobber_ops): Update comments.
* tree-ssa-operands.h (vdef_optype_d): Replace with...
(v_may_def_optype_d): This.
(v_must_def_optype_d): New structure.
(VDEF_OPS): Replace with...
(V_MAY_DEF_OPS): This.
(STMT_VDEF_OPS): Same with...
(STMT_V_MAY_DEF_OPS): This.
(NUM_VDEFS): And...
(NUM_V_MAY_DEFS): This.
(VDEF_RESULT_PTR): As well as...
(V_MAY_DEF_RESULT_PTR): This.
(VDEF_RESULT): Same goes for...
(V_MAY_DEF_RESULT): This.
(VDEF_OP_PTR): And...
(V_MAY_DEF_OP_PTR): This.
(VDEF_OP): And...
(V_MAY_DEF_OP): This.
(V_MUST_DEF_OPS): New macro.
(STMT_V_MUST_DEF_OPS): Ditto.
(NUM_V_MUST_DEFS): Ditto.
(V_MUST_DEF_OP_PTR): Ditto.
(V_MUST_DEF_OP): Ditto.
(remove_vdefs): Replace signature with...
(remove_v_may_defs): This.
(remove_v_must_defs): New function signature.
* tree-ssa-pre.c (subst_phis): Replace call to remove_vdefs
with calls to remove_v_may_defs and remove_v_must_defs.
(process_left_occs_and_kills): Rename occurences of vdef to v_may_def.
Also add code that marks left occurences of operands in V_MUST_DEFs.
* tree-tailcall.c (find_tail_calls): Rename occurences of vdef
to v_may_def. Also add check for V_MUST_DEFs.
(eliminate_tail_call):Rename occurences of vdef to v_may_def.
testsuite:
* gcc.dg/tree-ssa/20031015-1.c: Scan for
V_MAY_DEF instead of VDEF.
* gcc.dg/tree-ssa/20040517-1.c: Ditto.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@82947 138bc75d-0d04-0410-961f-82ee72b054a4
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* tree-dfa.c (create_ssa_name_ann): Remove.
* tree-flow-inline.h (ssa_name_ann, get_ssa_name_ann): Remove.
* tree-flow.h (enum tree_ann_type): Remove SSA_NAME_ANN.
(struct ssa_name_ann_d): Remove.
(union tree_ann_d): Update.
(ssa_name_ann_t): Remove.
* tree-ssa-alias.c: (get_ptr_info): New local function.
Replace references to ssa_name_ann_t with struct ptr_info_def.
* tree-ssa-operands.c (get_expr_operands): Likewise.
* tree.h (SSA_NAME_PTR_INFO): Define.
(struct ptr_info_def): Declare.
(struct tree_ssa_name): Add field 'ptr_info'.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@82864 138bc75d-0d04-0410-961f-82ee72b054a4
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is NULL.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@82099 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@81764 138bc75d-0d04-0410-961f-82ee72b054a4
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