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Author SHA1 Message Date
Diego Novillo
0bca51f080 backport: copy-prop, incremental SSA updating of FUD chains and newly exposed symbols. 
Merge from tree-cleanup-branch: VRP, store CCP, store
	    copy-prop, incremental SSA updating of FUD chains and
	    newly exposed symbols.

	* Makefile.in (tree-ssa-copy.o): Depend on tree-ssa-propagate.h.
	(OBJS-common): Add tree-vrp.o.
	(tree-vrp.o): New rule.
	* basic-block.h (nearest_common_dominator_for_set): Declare.
	* common.opt (ftree-store-ccp): New flag.
	(ftree-copy-prop): New flag.
	(ftree-vrp): New flag.
	(ftree-store-copy-prop): New flag.
	* dominance.c (nearest_common_dominator_for_set): New.
	* domwalk.c (walk_dominator_tree): Only traverse
	statements in blocks marked in walk_data->interesting_blocks.
	* domwalk.h (struct dom_walk_data): Add field interesting_blocks.
	* fold-const.c (fold): Handle ASSERT_EXPR.
	* opts.c (decode_options): Set flag_tree_copy_prop at -O1.
	Set flag_tree_store_ccp, flag_tree_store_copy_prop and
	flag_tree_vrp at -O2.
	* timevar.def (TV_TREE_VRP): Define.
	(TV_TREE_COPY_PROP): Define.
	(TV_TREE_STORE_COPY_PROP): Define.
	(TV_TREE_SSA_INCREMENTAL): Define.
	(TV_TREE_STORE_CCP): Define.
	* tree-cfg.c (tree_can_merge_blocks_p): Remove reference
	to kill_redundant_phi_nodes from comment.
	(verify_expr): Handle ASSERT_EXPR.
	* tree-dfa.c (mark_new_vars_to_rename): Remove second
	argument.  Update all users.
	(mark_call_clobbered_vars_to_rename): Remove.  Update all
	users.
	* tree-flow-inline.h (unmodifiable_var_p): New.
	* tree-flow.h (enum value_range_type): Declare.
	(struct value_range_def): Declare.
	(value_range): Declare.
	(remove_all_phi_nodes_for): Remove.  Update all users.
	(find_phi_node_for): Declare.
	(add_type_alias): Declare.
	(count_uses_and_derefs): Declare.
	(kill_redundant_phi_nodes): Remove.
	(rewrite_into_ssa): Remove.
	(rewrite_def_def_chains): Remove.
	(update_ssa, register_new_name_mapping, create_new_def_for,
	need_ssa_update_p, name_registered_for_update_p,
	release_ssa_name_after_update_ssa, dump_repl_tbl,
	debug_repl_tbl, dump_names_replaced_by,
	debug_names_replaced_by, mark_sym_for_renaming,
	mark_set_for_renaming, get_current_def, set_current_def,
	get_value_range, dump_value_range, debug_value_range,
	dump_all_value_ranges, debug_all_value_ranges,
	expr_computes_nonzero, loop_depth_of_name,
	unmodifiable_var_p): Declare.
	* tree-gimple.c (is_gimple_formal_tmp_rhs): Handle
	ASSERT_EXPR.
	* tree-into-ssa.c (block_defs_stack): Update comment.
	(old_ssa_names, new_ssa_names, old_virtual_ssa_names,
	syms_to_rename, names_to_release, repl_tbl,
	need_to_initialize_update_ssa_p, need_to_update_vops_p,
	need_to_replace_names_p): New locals.
	(NAME_SETS_GROWTH_FACTOR): Define.
	(struct repl_map_d): Declare.
	(struct mark_def_sites_global_data): Add field
	interesting_blocks.
	(enum rewrite_mode): Declare.
	(REGISTER_DEFS_IN_THIS_STMT): Define.
	(compute_global_livein): Use last_basic_block instead of
	n_basic_blocks.
	(set_def_block): Remove last argument.  Update all callers.
	(prepare_use_operand_for_rename): Remove.  Update all callers.
	(prepare_def_operand_for_rename): Remove.  Update all callers.
	(symbol_marked_for_renaming): New.
	(is_old_name): New.
	(is_new_name): New.
	(repl_map_hash): New.
	(repl_map_eq): New.
	(repl_map_free): New.
	(names_replaced_by): New.
	(add_to_repl_tbl): New.
	(add_new_name_mapping): New.
	(mark_def_sites): Assume that all the operands in the
	statement are in normal form.
	(find_idf): Assert that the block in the stack is valid.
	(get_default_def_for): New.
	(insert_phi_nodes_for): Add new argument 'update_p'.
	Add documentation.
	If update_p is true, add a new mapping between the LHS of
	each new PHI and the name that it replaces.
	(insert_phi_nodes_1): Only call find_idf if needed.
	(get_reaching_def): Call get_default_def_for.
	(rewrite_operand): Remove.
	(rewrite_stmt): Do nothing if REGISTER_DEFS_IN_THIS_STMT
	and REWRITE_THIS_STMT are false.
	Assume that all the operands in the statement are in
	normal form.
	(rewrite_add_phi_arguments): Don't use PHI_REWRITTEN.
	(rewrite_virtual_phi_arguments): Remove.
	(invalidate_name_tags): Remove.
	(register_new_update_single, register_new_update_set,
	rewrite_update_init_block, replace_use,
	rewrite_update_fini_block, rewrite_update_stmt,
	rewrite_update_phi_arguments): New.
	rewrite_blocks): Remove argument 'fix_virtual_phis'.
	Add arguments 'entry', 'what' and 'blocks'.
	Initialize the dominator walker according to 'what' and
	'blocks'.
	Start the dominator walk at 'entry'.
	(mark_def_site_blocks): Add argument 'interesting_blocks'.
	Use it to configure the dominator walker.
	(rewrite_into_ssa): Remove argument 'all'.
	Make internal.
	(rewrite_all_into_ssa): Remove.
	(rewrite_def_def_chains): Remove.
	(mark_def_interesting, mark_use_interesting,
	prepare_phi_args_for_update, prepare_block_for_update,
	prepare_def_site_for, prepare_def_sites,
	dump_names_replaced_by, debug_names_replaced_by,
	dump_repl_tbl, debug_repl_tbl, init_update_ssa,
	delete_update_ssa, create_new_def_for,
	register_new_name_mapping, mark_sym_for_renaming,
	mark_set_for_renaming, need_ssa_update_p,
	name_registered_for_update_p, ssa_names_to_replace,
	release_ssa_name_after_update_ssa,
	insert_updated_phi_nodes_for, update_ssa): New.
	* tree-loop-linear.c (linear_transform_loops): Call
	update_ssa instead of rewrite_into_ssa.
	* tree-optimize.c (vars_to_rename): Remove.
	Update all users.
	(init_tree_optimization_passes): Replace
	pass_redundant_phi with pass_copy_prop.
	Add pass_vrp.
	Replace pass_ccp with pass_store_ccp.
	Add pass_store_copy_prop after pass_store_ccp.
	(execute_todo): If the TODO_ flags don't include updating
	the SSA form, assert that it does not need to be updated.
	Call update_ssa instead of rewrite_into_ssa and
	rewrite_def_def_chains.
	If TODO_verify_loops is set, call verify_loop_closed_ssa.
	(tree_rest_of_compilation):
	* tree-pass.h (TODO_dump_func, TODO_ggc_collect,
	TODO_verify_ssa, TODO_verify_flow, TODO_verify_stmts,
	TODO_cleanup_cfg): Renumber.
	(TODO_verify_loops, TODO_update_ssa,
	TODO_update_ssa_no_phi, TODO_update_ssa_full_phi,
	TODO_update_ssa_only_virtuals): Define.
	(pass_copy_prop, pass_store_ccp, pass_store_copy_prop, pass_vrp):
	Declare.
	* tree-phinodes.c (make_phi_node): Update documentation.
	(remove_all_phi_nodes_for): Remove.
	(find_phi_node_for): New.
	* tree-pretty-print.c (dump_generic_node): Handle ASSERT_EXPR.
	* tree-scalar-evolution.c (follow_ssa_edge_in_rhs): Likewise.
	(interpret_rhs_modify_expr): Likewise.
	* tree-sra.c (decide_instantiations): Mark all symbols in
	SRA_CANDIDATES for renaming.
	(mark_all_v_defs_1): Rename from mark_all_v_defs.
	(mark_all_v_defs): New function.  Update all users to call it
	with the whole list of scalarized statements, not just the
	first one.
	* tree-ssa-alias.c (count_ptr_derefs): Make extern.
	(compute_flow_insensitive_aliasing): If the tag is
	unmodifiable and the variable isn't or vice-versa, don't
	make them alias of each other.
	(setup_pointers_and_addressables): If the type tag for
	VAR is about to change, mark the old one for renaming.
	(add_type_alias): New.
	* tree-ssa-ccp.c: Document SSA-CCP and STORE-CCP.
	(ccp_lattice_t): Rename from latticevalue.
	(value): Remove.  Update all users.
	(const_val): New local variable.
	(do_store_ccp): New local variable.
	(dump_lattice_value): Handle UNINITIALIZED.
	(debug_lattice_value): New.
	(get_default_value): Re-write.
	(set_lattice_value): Re-write.
	(def_to_varying): Remove.  Update all users.
	(likely_value): Return VARYING for statements that make
	stores when STORE_CCP is false.
	Return VARYING for any statement other than MODIFY_EXPR,
	COND_EXPR and SWITCH_EXPR.
	(ccp_initialize): Re-write.
	(replace_uses_in, replace_vuse_in, substitute_and_fold):
	Move to tree-ssa-propagate.c.
	(ccp_lattice_meet): Handle memory stores when
	DO_STORE_CCP is true.
	(ccp_visit_phi_node): Likewise.
	(ccp_fold): Likewise.
	(evaluate_stmt): Likewise.
	(visit_assignment): Likewise.
	(ccp_visit_stmt): Likewise.
	(execute_ssa_ccp): Add argument 'store_ccp'.  Copy it
	into DO_STORE_CCP.
	(do_ssa_ccp): New.
	(pass_ccp): Use it.
	(do_ssa_store_ccp): New.
	(gate_store_ccp): New.
	(pass_store_ccp): Declare.
	* tree-ssa-copy.c: Include tree-ssa-propagate.h.
	(may_propagate_copy): Reformat.
	Don't abort if ORIG is a virtual and DEST isn't.
	If NEW does not have alias information but DEST does,
	copy it.
	(copy_of, cached_last_copy_of, do_store_copy_prop, enum
	copy_prop_kind, which_copy_prop): Declare.
	(stmt_may_generate_copy, get_copy_of_val,
	get_last_copy_of, set_copy_of_val, dump_copy_of,
	copy_prop_visit_assignment, copy_prop_visit_cond_stmt,
	copy_prop_visit_stmt, copy_prop_visit_phi_node,
	init_copy_prop, fini_copy_prop, execute_copy_prop,
	gate_copy_prop, do_copy_prop, gate_store_copy_prop,
	store_copy_prop): New.
	(pass_copy_prop, pass_store_copy_prop): Declare.
	* tree-ssa-dom.c (struct opt_stats_d): Add fields
	'num_const_prop' and 'num_copy_prop'.
	(cprop_operand): Update them.
	(dump_dominator_optimization_stats): Dump them.
	(tree_ssa_dominator_optimize): Call update_ssa instead of
	rewrite_into_ssa.
	(loop_depth_of_name): Declare extern.
	(simplify_cond_and_lookup_avail_expr): Guard against NULL
	values for LOW or HIGH.
	(cprop_into_successor_phis): Only propagate if NEW != ORIG.
	(record_equivalences_from_stmt): Call expr_computes_nonzero.
	(cprop_operand): Only propagate if VAL != OP.
	* tree-ssa-dse.c (dse_optimize_stmt): Mark symbols in removed
	statement for renaming.
	* tree-ssa-loop-im.c (move_computations): Call update_ssa.
	* tree-ssa-loop-ivopts.c (rewrite_address_base): Call
	add_type_alias if necessary.
	Call mark_new_vars_to_rename.
	(tree_ssa_iv_optimize): If new symbols need to be renamed,
	mark every statement updated, call update_ssa and
	rewrite_into_loop_closed_ssa.
	* tree-ssa-loop-manip.c (add_exit_phis): Do not remove DEF_BB
	from LIVEIN if VAR is a virtual.
	* tree-ssa-loop.c (tree_loop_optimizer_init): Call update_ssa.
	* tree-ssa-operands.c (get_expr_operands): Handle ASSERT_EXPR.
	(get_call_expr_operands): Reformat statement.
	(add_stmt_operand): Don't create V_MAY_DEFs for read-only
	symbols.
	* tree-ssa-propagate.c (ssa_prop_init): Initialize
	SSA_NAME_VALUE for every name.
	(first_vdef, stmt_makes_single_load, stmt_makes_single_store,
	get_value_loaded_by): New.
	(replace_uses_in, replace_vuses_in, replace_phi_args_in,
	substitute_and_fold): Move from tree-ssa-ccp.c.
	* tree-ssa-propagate.h (struct prop_value_d, prop_value_t,
	first_vdef, stmt_makes_single_load, stmt_makes_single_store,
	get_value_loaded_by, replace_uses_in, substitute_and_fold):
	Declare.
	* tree-ssa.c (verify_use): Fix error message.
	(propagate_into_addr, replace_immediate_uses, get_eq_name,
	check_phi_redundancy, kill_redundant_phi_nodes,
	pass_redundant_phi): Remove.  Update all users.
	* tree-vect-transform.c (vect_create_data_ref_ptr): Call
	add_type_alias, if necessary.
	* tree-vectorizer.h (struct _stmt_vect_info): Update
	documentation for field 'memtag'.
	* tree-vrp.c: New file.
	* tree.def (ASSERT_EXPR): Define.
	* tree.h (ASSERT_EXPR_VAR): Define.
	(ASSERT_EXPR_COND): Define.
	(SSA_NAME_VALUE_RANGE): Define.
	(struct tree_ssa_name): Add field 'value_range'.
	(PHI_REWRITTEN): Remove.
	(struct tree_phi_node): Remove field 'rewritten'.
	* doc/invoke.texi (-fdump-tree-storeccp, -ftree-copy-prop,
	-ftree-store-copy-prop): Document.
	* doc/tree-ssa.texi: Remove broken link to McCAT's compiler.
	Document usage of update_ssa.

testsuite/ChangeLog

	* g++.dg/tree-ssa/pr18178.C: New test.
	* gcc.c-torture/execute/20030216-1.x: Ignore at -O1.
	* gcc.c-torture/execute/20041019-1.c: New test.
	* gcc.dg/tree-ssa/20041008-1.c: New test.
	* gcc.dg/tree-ssa/ssa-ccp-12.c: New test.
	* gcc.dg/tree-ssa/20030731-2.c: Update to use -fdump-tree-store_ccp.
	* gcc.dg/tree-ssa/20030917-1.c: Likewise.
	* gcc.dg/tree-ssa/20030917-3.c: Likewise.
	* gcc.dg/tree-ssa/20040721-1.c: Likewise.
	* gcc.dg/tree-ssa/ssa-ccp-1.c: Likewise.
	* gcc.dg/tree-ssa/ssa-ccp-2.c: Likewise.
	* gcc.dg/tree-ssa/ssa-ccp-3.c: Likewise.
	* gcc.dg/tree-ssa/ssa-ccp-7.c: Likewise.
	* gcc.dg/tree-ssa/ssa-ccp-9.c: Likewise.

From-SVN: r97884
 2005-04-08 21:37:54 -04:00
Andrew MacLeod
f430bae872 lambda-code.c (lambda_loopnest_to_gcc_loopnest): Use update_stmt. 
2005-04-05  Andrew MacLeod  <amacleod@redhat.com>

	* lambda-code.c (lambda_loopnest_to_gcc_loopnest): Use update_stmt.
	Use immediate use iterator.
	(stmt_is_bumper_for_loop): Use immediate use iterator.
	* predict.c (strip_builtin_expect): Use update_stmt.
	* tree-cfg.c (update_modified_stmts): New. Call update_stmt_if_modified
	on all elements of a STATEMENT_LIST.
	(bsi_insert_before, bsi_insert_after): Call update_modified_stmts.
	(bsi_remove): Remove imm_use links and mark the stmt as modified.
	(bsi_replace): Mark stmt as modified and the update it.
	* tree-complex.c (update_complex_assignment): Call mark_stmt_modified.
	(expand_complex_libcal): Call update_stmt.
	(expand_complex_comparison): Call mark_stmt_modified.
	(expand_complex_operations_1): Call update_stmt_if_modified.
	(expand_vector_operations_1): Call mark_stmt_modified.
	* tree-dfa.c (compute_immediate_uses, free_df_for_stmt, free_df,
	compute_immediate_uses_for_phi, compute_immediate_uses_for_stmt,
	add_immediate_use, redirect_immediate_use,
	redirect_immediate_uses, dump_immediate_uses, debug_immediate_uses,
	dump_immediate_uses_for, debug_immediate_uses_for): Delete.
	(mark_new_vars_to_rename): Call update_stmt.
	* tree-dump.c (dump_option_value_in): Add "stmtaddr".
	* tree-flow-inline.h (modify_stmt): Rename to mark_stmt_modified.
	Ignore PHI nodes.
	(unmodify_stmt): Delete.
	(update_stmt): New.  Force an update of a stmt.
	(update_stmt_if_modified): update a stmt if it is out of date.
	(get_stmt_operands): Verify stmt is NOT modified.
	(stmt_modified_p): Update comment.
	(delink_imm_use): Remove a use node from its immuse list.
	(link_imm_use_to_list): Link a use node to a specific list.
	(link_imm_use): Link a node to the correct list.
	(set_ssa_use_from_ptr): Set a use node to a specific value, and insert
	it in the correct list, if appropriate.
	(link_imm_use_stmt): Link a use node, and set the stmt pointer.
	(relink_imm_use): Link a use node in place of another node in a list.
	(relink_imm_use_stmt): LInk a node in place of another node, and set
	the stmt pointer.
	(end_safe_imm_use_traverse): New.  Terminate a safe immuse iterator.
	(end_safe_imm_use_p): New.  Check for the end of a safe immuse iterator.
	(first_safe_imm_use): New.  Initialize a safe immuse iterator.
	(next_safe_imm_use): New.  Proceed to next safe immuse iterator value.
	(end_readonly_imm_use_p): New.  Check for end of a fast immuse iterator.
	(first_readonly_imm_use): New.  Initialize a fast immuse iterator.
	(next_readonly_imm_use): New.  Get the next fast immuse iterator value.
	(has_zero_uses): New.  Return true if there are no uses of a var.
	(has_single_use): New.  Return true if there is only a single use of a
	variable.
	(single_imm_use): New.  Return the simgle immediate use.
	(num_imm_uses): New.  Return the number of immediate uses.
	(get_v_must_def_ops): Use is now a pointer.
	(use_operand_p, get_v_may_def_op_ptr, get_vuse_op_ptr,
	get_v_must_def_kill_ptr, get_phi_arg_def_ptr): Return the address of
	the use node.
	(get_immediate_uses, num_immediate_uses, immediate_use): Delete.
	(delink_stmt_imm_use): Delink all immuses from a stmt.
	(phi_arg_index_from_use): New.  Return a phi arg index for a use.
	* tree-flow.h (struct dataflow_d): Delete.
	(immediate_use_iterator_d): New.  Immediate use iterator struct.
	(FOR_EACH_IMM_USE_FAST): New.  Macro for read only immuse iteration.
	(FOR_EACH_IMM_USE_SAFE): New.  Macro for write-safe immuse iteration.
	(BREAK_FROM_SAFE_IMM_USE): New.  Macro for earlyu exit from write-safe
	iteration.
	(struct stmt_ann_d): Remove dataflow_t from struct.
	* tree-if-conv.c (tree_if_conversion).  Don't call free_df.
	(if_convertible_phi_p): Use FAST immuse iterator.
	(if_convertible_loop_p): Don't call compute_immediate_uses.
	(replace_phi_with_cond_modify_expr): Call update_stmt.
	* tree-into-ssa.c (mark_def_sites, ssa_mark_def_sites): Call
	update_stmt_if_modified.
	(rewrite_all_into_ssa): Initialize ssa operands.
	* tree-loop-linear.c (linear_transform_loops): Don't call free_df or
	compute_immediate_uses.
	* tree-optimize.c (execute_todo): Call verify_ssa whenever the
	ssa_property is available.
	(execute_one_pass):  Change parameters passed to execute_todo.
	* tree-outof-ssa.c (rewrite_trees): Don't call modify_stmt.
	(remove_ssa_form): Call fini_ssa_operands.
	(insert_backedge_copies): Delete call to modify_stmt.
	* tree-phinodes.c (make_phi_node): Initialize use nodes.
	(release_phi_node): Delink any use nodes before releasing.
	(resize_phi_node): Relink any use nodes.
	(remove_phi_arg_num): Delink the use node.
	(remove_phi_node): Release the ssa_name AFTER releasing the phi node.
	(remove_all_phi_nodes_for): Release phi node first.
	* tree-pretty-print.c (dump_generic_node): Print stmt address.
	* tree-sra.c (mark_all_v_defs): Call update_stmt_if_modified.
	(scalarize_use, scalarize_copy): Call update_stmt.
	* tree-ssa-alias.c (compute_may_aliases): Update all modified stmts.
	(compute_points_to_and_addr_escape): Call mark_stmt_modified.
	* tree-ssa-cpp.c (need_imm_uses_for): Delete.
	(ccp_initialize): Remove call to compute_immediate_uses.
	(substitute_and_fold, execute_fold_all_builtins): Call update_stmt.
	* tree-ssa-dom.c (tree_ssa_dominator_optimize): Update all modified
	stmts.
	(simplify_cond_and_lookup_avail_expr): Call mark_stmt_modified.
	(simplify_switch_and_lookup_avail_expr): Call mark_stmt_modified.
	(eliminate_redundant_computations): Call mark_stmt_modified.
	(cprop_operand): Call mark_stmt_modified.
	(optimize_stmt): Call update_stmt_if_modified and mark_stmt_modified.
	* tree-ssa-dse.c (fix_phi_uses, fix_stmt_v_may_defs): Delete.
	(dse_optimize_stmt): Use new immuse interface.
	(tree_ssa_dse): Remove calls to compute_immediate_uses and free_df.
	* tree-ssa-forwprop.c (need_imm_uses_for): Delete.
	(substitute_single_use_vars): Use new immuse interface.
	(tree_ssa_forward_propagate_single_use_vars): Remove calls to free_df
	and compute_immediate_uses.
	* tree-ssa-loop-im.c (single_reachable_address): Use new immuse
	interface.
	(rewrite_mem_refs): Call update_stmt.
	(determine_lsm): Remove call to compute_imm_uses and free_df.
	* tree-ssa-loop-ivcanon.c (create_canonical_iv): Call update_stmt.
	(try_unroll_loop_completely): Call update_stmt.
	* tree-ssa-loop-ivopts.c (rewrite_address_base): Call update_stmt.
	(rewrite_use_compare): Call update_stmt.
	(compute_phi_arg_on_exit): Insert each stmt before trying to process.
	(rewrite_use) : Call update_stmt.
	* tree-ssa-loop-manip.c (verify_loop_closed_ssa): Add arg to call.
	* tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Call
	update_stmt.
	* tree-ssa-operands.c (NULL_USE_OPERAND_P): Remove declaration.
	(allocate_use_optype, allocate_vuse_optype): Adjust allocation size.
	(free_uses, free_vuses, free_v_may_defs, free_v_must_defs): Delink
	use nodes.
	(initialize_vuse_operand): New.  Initialize a vuse operand.
	(initialize_v_may_def_operand): New.  Initialize a maydef operand.
	(initialize_v_must_def_operand): New.  Initialize a mustdef operand.
	(finalize_ssa_defs): Use stmt parameter.
	(correct_use_link): Ensure a use node is in the correct list, and has
	the correct stmt pointer.
	(finalize_ssa_uses, finalize_ssa_v_may_defs, finalize_ssa_vuses,
	finalize_ssa_v_must_defs): Also initialize use nodes.
	(finalize_ssa_stmt_operands): Pass extra stmt operands.
	(build_ssa_operands): Seperate parsing from final operand construction.
	(parse_ssa_operands): New.  Parse entry point for operand building.
	(swap_tree_operands): New.  Swap 2 tree operands.
	(update_stmt_operands): Ranamed from get_stmt_operands.  Always builds
	operands.
	(get_expr_operands): Call swap_tree_operands when needed.
	(copy_virtual_operands): Use initialize routines for virtual use ops.
	(create_ssa_artficial_load_stmt): Add extra stmt parameter.
	(verify_abort): New.  Issue imm_use error.
	(verify_imm_links): New Verify imm_use links for a var.
	(dump_immediate_uses_for): New.  Dump imm_uses for a var to file.
	(dump_immediate_uses): New.  Dump imm_uses for all vars to file.
	(debug_immediate_uses): New.  Dump imm_uses for all vars to stderr.
	(debug_immediate_uses_for): New.  Dump imm_uses for a var to stderr.
	* tree-ssa-operands.h (struct use_operand_ptr): Delete.
	(NULL_USE_OPERAND_P) Define.
	(use_optype_d, v_def_use_operand_type, vuse_optype_d): Add immediate
	use node.
	(struct vuse_operand_type): New struct.
	(SET_USE): Call set_ssa_use_from_ptr.
	(USE_STMT): Define.
	(PHI_ARG_INDEX_FROM_USE): Define.
	* tree-ssa-phiopt.c (replace_phi_edge_with_variable): Set the phi
	argument via SET_USE, not PHI_ARG_DEF_TREE.
	* tree-ssa-pre.c (eliminate): Call update_stmt.
	* tree-ssa-propagate.c (cfg_blocks_get): Use imm_use iterators.  Don't
	call free_df.
	* tree-ssa-sink.c (all_immediate_uses_same_place): Use imm_use iterator.
	(nearest_common_dominator_of_uses): Use imm_use iterator.
	(statement_sink_location): Use imm_use iterator and interface.
	(execute_sink_code): Don't call compute_immediate_uses or free-df.
	* tree-ssa-threadupdate.c (create_edge_and_update_destination_phis): Use
	PHI_ARG_DEF, not PHI_ARG_DEF_TREE.
	* tree-ssa.c (verify_use, verify_phi_args): Verify some imm_use info.
	(verify_ssa): Ensure no stmt is marked modify after optimization pass
	if new parameter is true.
	(init_tree_ssa): Don't initialize operand cache here.
	(delete_tree_ssa): Don't destroy operand cache here.
	(propagate_into_addr): Pass in a use pointer, return true if anything
	was changed.
	(replace_immediate_uses): Use imm_use iterator, call update_stmt.
	(check_phi_redundancy): Use imm_use iterator.
	(kill_redundant_phi_nodes): Don't call compute_immediate_uses or
	free_df.
	* tree-ssanames.c (make_ssa_name): Initialize imm_use node.
	(release_ssa_name): Delink node and all elements in its imm_use list.
	* tree-tailcall.c (adjust_return_value): Call update_stmt.
	* tree-vect-analyze.c (vect_stmt_relevant_p): Use imm_use iterator.
	* tree-vectorizer.c (need_imm_uses_for): Delete.
	(vectorize_loops): Dont call compute_immediate_uses or free_df.
	* tree.h (struct ssa_imm_use_d): Define.
	(SSA_NAME_IMM_USE_NODE): Define.
	(struct tree_ssa_name): Add imm_use node.
	(PHI_DF): Delete.
	(PHI_ARG_IMM_USE_NODE): Define.
	(struct phi_arg_d): Add imm_use node.
	(struct tree_phi_node): Remove struct dataflow_d element.
	(TDF_STMTADDR): Define.

From-SVN: r97648
 2005-04-05 19:05:20 +00:00
Daniel Berlin
c75ab02281 In gcc/ada/ 2005-03-12 Daniel Berlin <dberlin@dberlin.org> 
In gcc/ada/
2005-03-12  Daniel Berlin <dberlin@dberlin.org>

	* misc.c (gnat_post_options): Turn off structural
	aliasing for now.
In gcc/
2005-03-12  Daniel Berlin  <dberlin@dberlin.org>

	* tree-flow-inline.h (ref_contains_array_ref): New function.
	(lookup_subvars_for_var): Ditto.
	(get_subvars_for_var): Ditto.
	(var_can_have_subvars): Ditto.

	* tree-flow.h (mem_tag_kind): Add STRUCT_FIELD.
	(struct subvar): New type.

	* tree-dfa.c (okay_component_ref_for_subvars): New function.

	* tree-optimize.c (init_tree_optimization_passes): Call
	pass_create_structure_vars.

	* tree-ssa-alias.c: Include vec.h.
	(init_alias_info): Don't auto-clear call clobbered on struct-field
	tags.
	(compute_flow_insensitive_aliasing): Handle subvars.
	(group_aliases): Handle STRUCT_FIELD aliases.
	(setup_pointers_and_addressables): Ditto.
	Don't mark variables non-addressable if they still have
	addressable subvars.
	Also mark subvars addressable when the real variable is marked
	addressable.
	(add_pointed_to_var): Try to prune the pointed-to set by only
	pointing to subvars when possible.
	Otherwise, make sure we set addresses_needed and pt_vars to
	properly include subvars.
	(bitpos_of_field): New function.
	(push_fields_onto_fieldstack): Ditto.
	(get_or_create_used_part_for): Ditto.
	(create_overlap_variables_for): Ditto.
	(find_used_portions): Ditto.
	(create_structure_vars): Ditto.
	(pass_create_structure_vars): New structure.

	* tree-ssa-operands.c (finalize_ssa_v_must_defs): Remove assert.
	(get_expr_operands): Handle subvars.  Also try to turn
	COMPONENT_REF accesses into must-defs now that we can accurately
	portray it.
	(note_addressable): Try to only mark as addressable those subvars
	we know a COMPONENT_REF touches.
	(overlap_subvar): New function.

	* tree-vect-analyze.c (vect_object_analysis): Add new parameter.
	Handle subvar storing.
	(vect_address_analysis): Update caller of vect_object_analysis.

	* tree-vect-transform.c (vect_create_data_ref_ptr): Copy subvars.

	* tree-vectorizer.h (struct _stmt_vec_info): Add subvars member.
	(STMT_VINFO_SUBVARS): New macro.

	* common.opts: add flag_tree_salias.

	* opts.c (decode_options): flag_tree_salias defaults to on.

	* doc/invoke.texi: Document fdump-tree-svars and -ftree-salias.

	* doc/tree-ssa.texi: Document structural alias analysis.

From-SVN: r96362
 2005-03-13 00:46:07 +00:00
Kazu Hirata
6c6cfbfd52 c-common.c, [...]: Fix comment formatting. 
* c-common.c, c-opts.c, combine.c, cse.c, dojump.c,
	gimplify.c, tree-dfa.c, tree-ssa-loop-ivopts.c,
	tree-ssa-phiopt.c, tree-ssa-pre.c, tree-ssa-sink.c,
	tree-vect-analyze.c, tree.def, tree.h: Fix comment formatting.

From-SVN: r96104
 2005-03-08 13:57:01 +00:00
Jan Hubicka
59c982fe93 tree-dfa.c (add_referenced_var): Don't walk initializer of external and non-constant public variables. 
* tree-dfa.c (add_referenced_var): Don't walk initializer of external
	and non-constant public variables.

From-SVN: r95844
 2005-03-03 19:53:47 +00:00
Nathan Sidwell
8bdbfff57e bitmap.h (BITMAP_XMALLOC, [...]): Remove. 
* bitmap.h (BITMAP_XMALLOC, BITMAP_XFREE): Remove.
	* bb-reorder.c (duplicate_computed_gotos): Use BITMAP_ALLOC and
	BITMAP_FREE.
	* bt-load.c (btr_def_live_range, combine_btr_defs,
	migrate_btr_def, migrate_btr_defs): Likewise.
	* cfgcleanup.c (thread_jump): Likewise.
	* cfgloop.c (get_loop_body_in_bfs_order): Likewise.
	* df.c (df_insn_table_realloc, df_bitmaps_alloc, df_bitmaps_free,
	df_alloc, df_free, df_du_chain_create, df_bb_rd_local_compute,
	df_rd_local_compute, df_reg_info_compute): Likewise.
	* dominance.c (init_dom_info, free_dom_info): Likewise.
	* flow.c (init_propagate_block_info,
	free_propagate_block_info): Likewise.
	* gcse.c (alloc_gcse_mem, free_gcse_mem): Likewise.
	* global.c (allocate_bb_info, free_bb_info, calculate_reg_pav,
	modify_reg_pav): Likewise.
	* loop-invariant.c (find_defs, find_invariant_insn,
	find_invariants, free_inv_motion_data): Likewise.
	* predict.c (tree_predict_by_opcode,
	estimate_bb_frequencies): Likewise.
	* stmt.c (expand_case): Likewise.
	* tree-cfg.c (tree_duplicate_sese_region): Likewise.
	* tree-dfa.c (mark_new_vars_to_rename): Likewise.
	* tree-if-conv.c (get_loop_body_in_if_conv_order): Likewise.
	* tree-into-ssa.c (insert_phi_nodes_for, def_blocks_free,
	get_def_blocks_for, mark_def_site_blocks, rewrite_into_ssa,
	rewrite_ssa_into_ssa): Likewise.
	* tree-optimize.c (tree_rest_of_compilation): Likewise.
	* tree-outof-ssa.c (new_temp_expr_table, free_temp_expr_table,
	analyze_edges_for_bb, perform_edge_inserts): Likewise.
	* tree-scalar-evolution.c (scev_initialize, scev_finalize): Likewise.
	* tree-sra.c (tree_sra): Likewise.
	* tree-ssa-alias.c (init_alias_info, delete_alias_info): Likewise.
	* tree-ssa-ccp.c (ccp_fold_builtin): Likewise.
	* tree-ssa-dce.c (tree_dce_init, tree_dce_done): Likewise.
	* tree-ssa-dom.c (tree_ssa_dominator_optimize): Likewise.
	* tree-ssa-dse.c (tree_ssa_dse): Likewise.
	* tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_var):
	Likewise.
	* tree-ssa-live.c (new_tree_live_info, delete_tree_live_info,
	calculate_live_on_entry, calculate_live_on_exit,
	build_tree_conflict_graph): Likewise.
	* tree-ssa-loop-ivopts.c (tree_ssa_iv_optimize_init, record_use,
	record_important_candidates, set_use_iv_cost, find_depends,
	determine_use_iv_costs, iv_ca_new, iv_ca_free, free_loop_data,
	tree_ssa_iv_optimize_finalize): Likewise.
	* tree-ssa-loop-manip.c (add_exit_phis_var, get_loops_exit,
	find_uses_to_rename_use, rewrite_into_loop_closed_ssa,
	tree_duplicate_loop_to_header_edge): Likewise.
	* tree-ssa-pre.c (init_pre, fini_pre): Likewise.
	* tree-ssa.c (verify_flow_insensitive_alias_info,
	verify_name_tags, verify_ssa, init_tree_ssa,
	delete_tree_ssa): Likewise.
	* tree-ssanames.c (marked_ssa_names, init_ssanames,
	fini_ssanames): Likewise.
	* tree-vectorizer.c (slpeel_tree_peel_loop_to_edge): Likewise.

From-SVN: r95172
 2005-02-17 16:19:49 +00:00
Kazu Hirata
6a6305e4a1 bitmap.c, [...]: Update copyright. 
* bitmap.c, bitmap.h, lambda-code.c, tree-dfa.c, tree-dump.c,
	tree-dump.h, tree-ssa-loop-manip.c, value-prof.c,
	config/mips/mips.md, config/rs6000/aix.h,
	config/rs6000/beos.h, config/rs6000/sysv4.h: Update copyright.

From-SVN: r95064
 2005-02-15 15:53:52 +00:00
Diego Novillo
9a06c1cb10 re PR tree-optimization/19853 (incorrect vops after exposing a new global variable) 
PR tree-optimization/19853
	* tree-dfa.c (add_referenced_var): Always examine DECL_INITIAL.


testsuite/ChangeLog

	PR tree-optimization/19853
	* gcc.c-torture/compile/pr19853.c: New test.

From-SVN: r95040
 2005-02-14 14:46:08 -05:00
Diego Novillo
7d5f9cc68f tree-into-ssa.c (REWRITE_THIS_STMT): Define. 
* tree-into-ssa.c (REWRITE_THIS_STMT): Define.
	(mark_def_sites): Clear REWRITE_THIS_STMT for statements that
	don't need any operands rewritten.
	(rewrite_stmt): Ignore statements that don't need to be
	rewritten.
	(rewrite_operand): Validate that an existing SSA_NAME is
	identical to the current reaching definition of the operand.


	* tree-dfa.c (mark_call_clobbered_vars_to_rename): New function.
	* tree-vectorizer.c (vectorizable_load): Call it.
	* tree-flow.h (mark_call_clobbered_vars_to_rename): Declare.
	* tree-sra.c (mark_all_v_defs): Also mark VUSEs for renaming.

From-SVN: r92010
 2004-12-10 16:54:42 -05:00
Nathan Sidwell
67299d9127 bitmap.h (bitmap_a_or_b, [...]): Remove. 
* bitmap.h (bitmap_a_or_b, bitmap_a_and_b): Remove.
	* df.c (dataflow_set_a_op_b): Use bitmap_and, bitmap_ior,
	bitmap_and_into, bitmap_ior_into as appropriate.
	* except.c (remove_eh_handler):	Likewise.
	* global.c (modify_bb_reg_pav, make_accurate_live_analysis): Likewise.
	* tree-dfa.c (mark_new_vars_to_rename): Likewise.
	* tree-ssa-alias.c (merge_pointed_to_info): Likewise.
	* tree-ssa-live.h (live_merge_and_clear): Likewise.
	* tree-ssa-loop-ivopts.c (find_best_candidate, try_add_cand_for):
	Likewise.

From-SVN: r90054
 2004-11-04 08:57:55 +00:00
Nathan Sidwell
3cd8c58a83 bitmap.c (bitmap_print): Make bitno unsigned. 
* bitmap.c (bitmap_print): Make bitno unsigned.
	* bt-load.c (clear_btr_from_live_range,
	btr_def_live_range): Likewise.
	* caller-save.c (save_call_clobbered_regs): Likewise.
	* cfganal.c (compute_dominance_frontiers_1): Likewise.
	* cfgcleanup.c (thread_jump): Likewise.
	* cfgrtl.c (safe_insert_insn_on_edge): Likewise.
	* conflict.c (conflict_graph_compute): Likewise.
	* ddg.c (add_deps_for_use): Likewise.
	* df.c (df_refs_update): Likewise.
	* except.c (remove_eh_handler): Likewise.
	* flow.c (verify_local_live_at_start, update_life_info,
	initialize_uninitialized_subregs, propagate_one_insn,
	free_propagate_block_info, propagate_block, find_use_as_address,
	reg_set_to_hard_reg_set): Likewise.
	* gcse.c (clear_modify_mem_tables): Likewise.
	* global.c (global_conflicts, build_insn_chain): Likewise.
	* ifcvt.c (dead_or_predicable): Likewise.
	* local-alloc.c (update_equiv_regs): Likewise.
	* loop.c (load_mems): Likewise.
	* ra-build.c (livethrough_conflicts_bb, conflicts_between_webs):
	Likewise.
	* ra-rewrite.c (reloads_to_loads, rewrite_program2, actual_spill):
	Likewise.
	* reload1.c (order_regs_for_reload, finish_spills): Likewise.
	* sched-deps.c (sched_analyze_insn, free_deps): Likewise.
	* sched-rgn.c (propagate_deps
	* tree-cfg.c (tree_purge_all_dead_eh_edges): Likewise.
	* tree-dfa.c (dump_dfa_stats
	tree-into-ssa.c (compute_global_livein, insert_phi_nodes,
	insert_phi_nodes_for, debug_def_blocks_r, invalidate_name_tags):
	Likewise.
	* tree-outof-ssa.c (coalesce_ssa_name, coalesce_vars,
	free_temp_expr_table, find_replaceable_exprs): Likewise.
	* tree-sra.c (scan_function, scalarize_parms): Likewise.
	* tree-ssa-alias.c (init_alias_info,
	compute_points_to_and_addr_escape,
	compute_flow_sensitive_aliasing, maybe_create_global_var): Likewise.
	* tree-ssa-dce.c (mark_control_dependent_edges_necessary): Likewise.
	* tree-ssa-live.c (new_tree_live_info, live_worklist,
	calculate_live_on_entry, calculate_live_on_exit, compare_pairs,
	sort_coalesce_list, build_tree_conflict_graph, dump_live_info
	tree-ssa-loop-manip.c (add_exit_phis_var): Likewise.
	tree-ssa-operands.c (get_asm_expr_operands, add_call_clobber_ops,
	add_call_read_ops): Likewise.
	* tree-ssa-pre.c (bitmap_print_value_set, insert_aux): Likewise.
	* tree-ssa-live.h (num_var_partitions): Return unsigned.

From-SVN: r90053
 2004-11-04 08:41:16 +00:00
Daniel Berlin
52328bf6c8 re PR tree-optimization/17133 (wrong code with -ftree-lim) 
2004-10-27  Daniel Berlin <dberlin@dberlin.org>

	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.

From-SVN: r89695
 2004-10-27 17:45:21 +00:00
Kenneth Zadeck
85c33455ea patch to remove the analysis of module level static variables. 
From-SVN: r89559
 2004-10-25 22:04:02 +00:00
Steven Bosscher
30a80709c4 timevar.def (TV_FIND_REFERENCED_VARS): New. 
* timevar.def (TV_FIND_REFERENCED_VARS): New.
	* tree-dfa.c (pass_referenced_var): Use it.

From-SVN: r89552
 2004-10-25 21:18:15 +00:00
Kazu Hirata
471854f82a alias.c, [...]: Fix comment formatting. 
* alias.c, basic-block.h, cgraphunit.c, combine.c, domwalk.h,
	final.c, gengtype.c, genpreds.c, ggc-page.c, insn-notes.def,
	lambda-code.c, loop-unroll.c, modulo-sched.c, pointer-set.c,
	pretty-print.c, ra-colorize.c, sbitmap.c, tree-complex.c,
	tree-data-ref.c, tree-dfa.c, tree-inline.c, tree-into-ssa.c,
	tree-scalar-evolution.c, tree-ssa-dom.c,
	tree-ssa-loop-manip.c, tree-ssa-loop-niter.c,
	tree-ssa-phiopt.c, tree-ssa-pre.c, tree-ssa-threadupdate.c,
	tree-vectorizer.c, vec.h: Fix comment formatting.

From-SVN: r89453
 2004-10-22 17:05:11 +00:00
Matt Austern
0c58f841a5 Speed up walk_tree by introducing a special-purpose hash table. 
* pointer-set.c: New file, special-purpose hash table.
	* pointer-set.h: New file.
	* tree.h (struct pointer_set_t): Declare as opaque type.
	(tree_walk): Last argument is pointer_set_t* now.
	* tree-inline.c (WALK_SUBTREE): Convert from htab to pset.
	(walk_type_fields):
	(walk_tree): Convert from htab_t to pointer_set_t for keeping
	track of which nodes have already been visited.
	(walk_tree_without_duplicates): Convert from htab_t to pointer_set_t.
	* cgraphunit.c (cgraph_create_edges): Likewise.
	(cgraph_characterize_statics_local): Likewise.
	* tree-dfa.c (collect_dfa_stats): Likewise.
	* langhooks-def.h (lhd_tree_inlining_walk_subtrees): Last arg is
	pointer_set_t* now.
	* langhooks.c (lhd_tree_inlining_walk_subtrees): Likewise.
	* langhooks.h (struct lang_hooks_for_tree_inlining): Last arg type
	of walk_subtrees is pointer_set_t* now.
	* Makefile.in (OBJS-common): add pointer-set.o
	(tree-inline.o): Depends on pointer-set.h
	(tree-dfa.o): Likewise
	(cgraphunit.o): Likewise
	* cp/Make-lang.in (pt.o): depends on pointer-set.h
	* cp/cp-tree.h (cp_walk_subtrees): Last argument is pointer_set_t* now.
	* cp/pt.c (struct pair_fn_data): Use pointer_set_t, not htab_t
	(for_each_template_parm): Convert from htab_t to pointer_set_t.
	* cp/tree.c (cp_walk_subtrees): Last argument is pointer_set_t* now.
	* java/lang.c (java_tree_inlining_walk_subtrees): Last arg is struct
	pointer_set_t* now.

From-SVN: r89062
 2004-10-14 23:15:29 +00:00
Diego Novillo
20c16b361d tree-ssa-alias.c (collect_points_to_info_r): Move analysis of expressions... 
* tree-ssa-alias.c (collect_points_to_info_r): Move analysis of
	expressions...
	(add_pointed_to_expr): ... here.
	Call add_pointed_to_expr for variables with DECL_INITIAL set.
	* tree-dfa.c (add_referenced_var): Scan DECL_INITIAL of any
	pointer variable, if set.

From-SVN: r88334
 2004-09-30 10:09:45 -04:00
Jakub Jelinek
b28b16008e tree-flow.h (find_new_referenced_vars): Add prototype. 
2004-09-23  Diego Novillo  <dnovillo@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>

	* tree-flow.h (find_new_referenced_vars): Add prototype.
	* tree-sra.c (find_new_referenced_vars_1, find_new_referenced_vars):
	Move to...
	* tree-dfa.c (find_new_referenced_vars_1, find_new_referenced_vars):
	... here.
	(mark_new_vars_to_rename): Walk through all operands.
	* tree-ssa-ccp.c (convert_to_gimple_builtin): New function.
	(execute_fold_all_builtins): Use it.
	(pass_fold_builtins): Add TODO_rename_vars to todo_flags_finish.

	* gcc.c-torture/execute/builtins/strcpy-2.c: New test.
	* gcc.c-torture/execute/builtins/strcpy-2-lib.c: New.

From-SVN: r87983
 2004-09-23 23:01:02 +02:00
Diego Novillo
c04f07f4cf re PR tree-optimization/16721 (Accesses to volatile objects optimized away) 
PR tree-optimization/16721
	* tree-dfa.c (dump_variable): Show TREE_THIS_VOLATILE.
	* tree-ssa-alias.c (create_memory_tag): Move setting of
	TREE_THIS_VOLATILE ...
	(get_tmt_for): ... here.


testsuite/ChangeLog

	PR tree-optimization/16721
	* testsuite/gcc.dg/tree-ssa/pr16721.c: New test.

From-SVN: r87895
 2004-09-22 19:33:20 -04:00
Jeffrey D. Oldham
6615c44615 alias.c (find_base_decl): Remove unreachable case '3' block. 
2004-09-17  Jeffrey D. Oldham  <oldham@codesourcery.com>
	    Zack Weinberg  <zack@codesourcery.com>

	* alias.c (find_base_decl): Remove unreachable case '3' block.
	* expr.c (safe_from_p): Abort if passed a type.
	* tree-gimple.c (recalculate_side_effects): Abort if passed
	anything other than an expression.
	* tree-ssa-pre.c (phi_translate): Return expr immediately if
	is_gimple_min_invariant is true for it.  Reorder cases for clarity.
	Abort on un-handled tree classes.
	(valid_in_set): Likewise.
	* tree.c (tree_code_class_strings): New static data.

	* tree.h (enum tree_code_class): New.
	(tree_code_class_strings): Declare.
	(TREE_CODE_CLASS_STRING, EXCEPTIONAL_CLASS_P, CONSTANT_CLASS_P)
	(REFERENCE_CLASS_P, COMPARISON_CLASS_P, UNARY_CLASS_P, BINARY_CLASS_P)
	(STATEMENT_CLASS_P, EXPRESSION_CLASS_P, IS_TYPE_OR_DECL_P): New macros.
	(TYPE_P, DECL_P, IS_NON_TYPE_CODE_CLASS, IS_EXPR_CODE_CLASS)
	(checking macros, EXPR_LOCATION, SET_EXPR_LOCATION, EXPR_LOCUS): Update.

	* tree.def, c-common.def, objc/objc-tree.def: Use
	tree_code_class enumeration constants instead of code letters.

	* alias.c, builtins.c, c-common.c, c-format.c, c-lang.c, c-pragma.c
	* c-typeck.c, cgraphunit.c, convert.c, dbxout.c, dwarf2out.c
	* emit-rtl.c expr.c, fold-const.c, gimplify.c, lambda-code.c
	* langhooks.c, langhooks.h, predict.c, print-tree.c, reload1.c, stmt.c
	* tree-browser.c, tree-cfg.c, tree-chrec.c, tree-complex.c, tree-dfa.c
	* tree-dump.c, tree-eh.c, tree-gimple.c, tree-inline.c, tree-nested.c
	* tree-outof-ssa.c, tree-pretty-print.c, tree-sra.c, tree-ssa-ccp.c
	* tree-ssa-dce.c, tree-ssa-dom.c, tree-ssa-forwprop.c, tree-ssa-live.c
	* tree-ssa-loop-im.c, tree-ssa-loop-ivopts.c, tree-ssa-operands.c
	* tree-ssa-phiopt.c, tree-ssa-pre.c, tree-ssa-propagate.c
	* tree-ssa.c, tree-ssanames.c, tree-tailcall.c, tree.c, varasm.c
	* config/sol2-c.c, config/arm/arm.c, config/i386/winnt.c
	* config/pa/pa.c, config/pa/pa.h, config/sh/sh.c, objc/objc-lang.c
	Update to match.

	* LANGUAGES: Add note about change.

ada:
	* ada-tree.def: Use tree_code_class enumeration constants
	instead of code letters.
	* ada-tree.h, decl.c, misc.c, trans.c, utils.c, utils2.c:
	Update for new tree-class enumeration constants.

cp:
	* cp-tree.def: Use tree_code_class enumeration constants
	instead of code letters.
	* call.c, class.c, cp-gimplify.c, cp-lang.c, cxx-pretty-print.c
	* mangle.c, pt.c, semantics.c, tree.c, typeck.c:
	Update for new tree-class enumeration constants.

fortran:
	* f95-lang.c, trans-expr.c, trans.c: Update for new tree-class
	enumeration constants.

java:
	* java-tree.def: Use tree_code_class enumeration constants
	instead of code letters.
	* java-gimplify.c, jcf-write.c, lang.c, parse.y: Update for
	new tree-class enumeration constants.

treelang:
	* treetree.c: Update for new tree-class enumeration constants.

From-SVN: r87675
 2004-09-17 21:55:02 +00:00
Jeff Law
a5c965c17e tree-dfa.c (free_df_for_stmt): No longer static. 
* tree-dfa.c (free_df_for_stmt): No longer static.
	(free_df): Update comments.
	* tree-flow.h (free_df_for_stmt): Prototype.
	* tree-ssa-dse.c (dse_optimize_stmt): Call free_df_for_stmt.  Also
	call release_defs.

From-SVN: r87531
 2004-09-14 22:12:18 -06:00
Diego Novillo
1810f6edaa re PR tree-optimization/15262 ([tree-ssa] Alias analyzer cannot handle addressable fields) 
PR tree-optimization/15262
	* tree-dfa.c (dump_variable): Also print the type of the
	variable.
	* tree-ssa-alias.c (compute_flow_insensitive_aliasing): If two
	memory tags are of conflicting alias sets but have no aliased
	symbols in common, add one tag to the alias set of the other.
	(setup_pointers_and_addressables): Remove hack to deal with
	programs with no aliased symbols.
	(may_alias_p): Don't special case aggregate types.


testsuite/ChangeLog

	PR tree-optimization/15262
	* gcc.c-torture/execute/pr15262-1.c: New test.
	* gcc.c-torture/execute/pr15262-2.c: New test.

From-SVN: r87515
 2004-09-14 18:45:54 -04:00
Kenneth Zadeck
6674a6ce49 New code to analyze file level static variables and to determine if... 
New code to analyze file level static variables and to determine if
they escape and also code to use this information to prune clobber
lists.

From-SVN: r87455
 2004-09-13 22:51:01 +00:00
Zdenek Dvorak
30d396e3d5 tree-cfg.c (set_bb_for_stmt): Use PHI_BB. 
* tree-cfg.c (set_bb_for_stmt): Use PHI_BB.
	* 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.

From-SVN: r87369
 2004-09-11 20:42:06 +00:00
Daniel Berlin
0a05048550 Makefile.def: Remove libbanshee. 
Toplevel:

2004-09-09  Daniel Berlin  <dberlin@dberlin.org>

	* Makefile.def: Remove libbanshee.
	* Makefile.tpl: Ditto.
	* configure.in: Ditto.
	* Makefile.in: Regen.
	* configure: Ditto.

gcc/

2004-09-09  Daniel Berlin  <dberlin@dberlin.org>

	* Makefile.in: Remove libbanshee, tree-alias-*.
	Remove tree-alias-common.h dependencies.
	* common.opt: Remove -ftree-points-to.
	* configure.ac: Remove libbanshee.
	* flags.h: Remove pta_type, flag_tree_points_to.
	* gengtype.c (open_base_files): Remove tree-alias-type.h.
	* opts.c (OPT_ftree_points_to): Remove.
	* toplev.c: Remove tree-alias-common.h, flag_tree_points_to.
	* tree-dfa.c: Remove tree-alias-common.h
	* tree-into-ssa.c: Ditto.
	* tree-outof-ssa.c: Ditto.
	* tree-ssa-copyrename.c: Ditto.
	* tree-ssa-live.c: Ditto.
	* tree-optimize.c: Ditto.
	* tree-ssa.c: Ditto.
	Remove pass_build_pta, pass_del_pta.
	* tree-pass.h: Ditto.
	* tree-ssa-alias.c: Remove tree-alias-common.h.
	(struct alias_stats_d):	Remove pta_queries, pta_resolved.
	(pass_may_alias): Remove PROP_pta requirement.
	(may_alias_p): Remove pta_queries, pta_resolved, use of andersens.
	(get_tmt_for): Ditto.
	(dump_alias_stats): Ditto.
	* doc/passes.texi: Remove blurb about points-to analysis.
	* fortran/Make-lang.in: Remove tree-alias-*.o.

From-SVN: r87253
 2004-09-09 20:53:41 +00:00
Giovanni Bajo
1e128c5f7b targhooks.c (default_unwind_emit, [...]): Use gcc_assert, gcc_unreachable & internal_error instead of abort. 
* targhooks.c (default_unwind_emit, default_scalar_mode_supported_p):
	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.

Co-Authored-By: Nathan Sidwell <nathan@codesourcery.com>

From-SVN: r87223
 2004-09-09 07:54:12 +00:00
Paolo Bonzini
9f8628bacd Unify the management of RTL and tree-level dump files. 
2004-09-06  Paolo Bonzini  <bonzini@gnu.org>

	Unify the management of RTL and tree-level dump files.

	* cfgexpand.c (tree_expand_cfg): Fix incorrect comment.
	Don't print function name to the dump file, the pass manager
	would do this for us. Add code from the top of
	rest_of_compilation, up to the initial RTL dump.
	* passes.c (rest_of_handle_jump): Call fixup_tail_calls and
	close the DFI_sibling dump file.
	(rest_of_compilation): Don't do that here.  Remove code up to the
	initial RTL dump.
	(init_optimization_passes): Remove.
	(pass_rest_of_compilation): Change pass name to NULL.
	* toplev.c (lang_dependent_init): Do not use an empty dump file prefix.
	Do not call init_optimization_passes.
	* toplev.h (init_optimization_passes): Remove.

	* graph.c (print_rtl_graph_with_bb, clean_graph_dump_file,
	finish_graph_dump_file): Remove SUFFIX parameter.
	* graph.h (print_rtl_graph_with_bb, clean_graph_dump_file,
	finish_graph_dump_file): Likewise.

	* tree-pass.h (struct tree_opt_pass): Add `letter' field.
	* cfgexpand.c (pass_expand): Adjust.
	* gimple-low.c (pass_lower_cf, pass_remove_useless_vars): Adjust.
	* passes.c (pass_rest_of_compilation): Adjust.
	* predict.c (pass_profile): Adjust.
	* tree-alias-common.c (pass_build_pta, pass_del_pta): Adjust.
	* tree-cfg.c (pass_build_cfg, pass_remove_useless_stmts,
	pass_split_crit_edges, pass_warn_function_return): Adjust.
	* tree-complex.c (pass_lower_vector_ssa, pass_pre_expand): Adjust.
	* tree-dfa.c (pass_referenced_vars): Adjust.
	* tree-eh.c (pass_lower_eh): Adjust.
	* tree-if-conv.c (pass_build_ssa): Adjust.
	* tree-into-ssa.c (pass_build_ssa): Adjust.
	* tree-mudflap.c (pass_mudflap_1, pass_mudflap_2): Adjust.
	* tree-nomudflap.c (pass_mudflap_1, pass_mudflap_2): Adjust.
	* tree-nrv.c (pass_nrv): Adjust.
	* tree-optimize.c (pass_gimple, pass_all_optimizations,
	pass_cleanup_cfg_post_optimizing, pass_free_datastructures,
	pass_init_datastructures): Adjust.
	* tree-outof-ssa.c (pass_del_ssa): Adjust.
	* tree-profile.c (pass_tree_profile): Adjust.
	* tree-sra.c (pass_sra): Adjust.
	* tree-ssa-alias.c (pass_may_alias): Adjust.
	* tree-ssa-ccp.c (pass_ccp, pass_fold_builtins): Adjust.
	* tree-ssa-copyrename.c (pass_rename_ssa_copies): Adjust.
	* tree-ssa-dce.c (pass_dce, pass_cd_dce): Adjust.
	* tree-ssa-dom.c (pass_dominator): Adjust.
	* tree-ssa-dse.c (pass_dse): Adjust.
	* tree-ssa-forwprop.c (pass_forwprop): Adjust.
	* tree-ssa-if-conv.c (pass_if_conversion): Adjust.
	* tree-ssa-loop-ch.c (pass_ch): Adjust.
	* tree-ssa-loop.c (pass_loop, pass_loop_init, pass_lim,
	pass_loop_done, pass_complete_unroll, pass_iv_canon,
	pass_iv_optimize, pass_vectorize): Adjust.
	* tree-ssa-phiopt.c (pass_phiopt): Adjust.
	* tree-ssa-pre.c (pass_pre, pass_fre): Adjust.
	* tree-ssa.c (pass_redundant_phi, pass_early_warn_uninitialized,
	pass_late_warn_uninnitialized): Adjust.
	* tree-tailcall.c (pass_tail_recursion, pass_tail_calls): Adjust.

	* Makefile.in (tree-dump.o): Add new dependencies.
	* cgraph.c (cgraph_remove_node): TDF_all -> TDF_tree_all.
	* cgraphunit.c (cgraph_preserve_function_body_p, cgraph_optimize):
	Likewise.
	* toplev.c (dump_file_name): New.
	* tree-dump.c (dump_enable_all): Add LETTER parameter.
	(struct dump_file_info): Add NUM and LETTER fields.
	(dump_files): Adjust and add RTL dump files.
	(dump_register): Add NUM and LETTER fields.
	(get_dump_file_name, dump_initialized_p, enable_rtl_dump_file): New.
	(dump_begin): Use get_dump_file_name.
	(dump_switch_p_1): Adjust call to dump_enable_all.
	* tree-dump.h (dump_register): Adjust prototype.
	* tree-optimize.c (register_one_dump_file): Take dump file index.
	Support flags for RTL dumps.
	(register_dump_files): Fill in NUM field of struct dump_file_info.
	Track properties both when the gate is executed and when it is not.
	(execute_todo): Dump RTL.  Add PROPERTIES parameter.
	(execute_one_pass): Pass properties to execute_todo.  Handle VCG
	dumps of RTL.
	* tree-pass.h (dump_file_name): New.
	* tree.h (TDF_TREE, TDF_RTL, get_dump_file_name, dump_initialized_p):
	New.

	* Makefile.in (passes.o): Add new dependencies.
	* passes.c (struct dump_file_info, enum dump_file_index,
	dump_file_tbl, init_optimization_passes): Remove.
	(open_dump_file, close_dump_file): Use tree-dumping infrastructure.
	(rest_of_handle_new_regalloc, rest_of_handle_old_regalloc): Use
	dump_enabled_p.
	(finish_optimization_passes): Update finish_graph_dump_file loop.
	(enable_rtl_dump_file): Remove.
	* tree-dump.c (dump_files): Adjust and add RTL dump files.
	(enable_rtl_dump_file): Add here.
	* tree.h (enum tree_dump_index): Add RTL dump file indices.
	* doc/invoke.texi (Debugging options): Document new RTL debugging
	options.  Update.

From-SVN: r87113
 2004-09-06 10:08:17 +00:00
Andrew MacLeod
4c124b4c6f tree-ssa-operands.h (struct ssa_operand_iterator_d): New. 
2004-08-25  Andrew MacLeod  <amacleod@redhat.com>

	* 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.

From-SVN: r86583
 2004-08-25 21:21:19 +00:00
Diego Novillo
50dc9a88c1 tree-dfa.c (add_referenced_var): Only global variables are call-clobbered. 
* tree-dfa.c (add_referenced_var): Only global variables are
	call-clobbered.
	* tree-flow.h (struct ptr_info_def): Add field pt_global_mem.
	* tree-ssa-alias.c (compute_points_to_and_addr_escape): Mark
	all pointers dereferenced if the statement dereferences them.
	(create_name_tags): Do not create memory tags for pointers
	that have PT_ANYTHING set.
	Also check if PT_VARS is not empty before creating a name tag.
	(compute_flow_sensitive_aliasing): Don't mark call-clobbered
	variables that share the same alias set with a pointer that
	may point anywhere.
	(add_may_alias): Add FIXME comment to remove clobbering
	aliased variables and tags.
	(replace_may_alias): Likewise.
	(set_pt_anything): Do not clear PT_VARS nor IS_DEREFERENCED.
	(merge_pointed_to_info): If the original variable has not
	points-to information, call set_pt_anything.
	(add_pointed_to_var): Do not prevent adding a pointed-to
	variable if the pointers is PT_ANYTHING.
	If the variable is a global, set PT_GLOBAL_MEM.
	(collect_points_to_info_r): Don't assume that PLUS_EXPRs of
	pointer type only come in PTR+OFFSET flavours.
	Always call merge_pointed_to_info on PHI arguments that are
	SSA_NAMEs.
	(get_nmt_for): Mark call-clobbered tags whose pointer points
	to global memory.
	* tree-ssa-operands.c (opf_kill_def, opf_no_vops): Switch
	values.
	(get_indirect_ref_operands): Always clear OPF_KILL_DEF from
	FLAGS.
	(add_stmt_operand): Abort if the caller tried to add a killing
	definition for a memory tag.
	* tree-ssa.c (verify_flow_sensitive_alias_info): Remove
	unnecessary checks.

From-SVN: r86198
 2004-08-18 14:21:23 -04:00
Diego Novillo
c597ef4eab re PR tree-optimization/16867 (Inline array initializer miscompilation at -O) 
PR tree-optimization/16867
	* 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.

From-SVN: r85874
 2004-08-12 10:34:11 -04:00
Eric Christopher
ff6a32068d tree-dfa.c (add_referenced_var): Register initializers of global variables. 
2004-07-26  Eric Christopher  <echristo@redhat.com>

	* tree-dfa.c (add_referenced_var): Register initializers of global
	variables.

2004-07-26  Eric Christopher  <echristo@redhat.com>

	* gcc.c-torture/compile/20040726-2.c: New test.

From-SVN: r85214
 2004-07-27 00:20:03 +00:00
Richard Henderson
ab8907ef75 expr.c (expand_expr_real_1): Don't handle non-local variables. 
* expr.c (expand_expr_real_1): Don't handle non-local variables.
        * 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.

From-SVN: r85099
 2004-07-23 15:37:23 -07:00
Richard Henderson
26e79d1018 tree-flow.h (struct var_ann_d): Remove has_hidden_use. 
* tree-flow.h (struct var_ann_d): Remove has_hidden_use.
        * 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.

From-SVN: r84830
 2004-07-16 13:40:25 -07:00
Paolo Bonzini
51a61243e7 tree-dfa.c (make_rename_temp): *Really* work just like create_tmp_var if called while outside SSA form. 
2004-07-14  Paolo Bonzini  <bonzini@gnu.org>

	* tree-dfa.c (make_rename_temp): *Really* work just
	like create_tmp_var if called while outside SSA form.

From-SVN: r84685
 2004-07-14 13:36:29 +00:00
Paolo Bonzini
eda9caf678 tree-dfa.c (make_rename_temp): Work just like create_tmp_var when called outside SSA form. 
2004-07-14  Paolo Bonzini  <bonzini@gnu.org>

	* tree-dfa.c (make_rename_temp): Work just like
	create_tmp_var when called outside SSA form.

From-SVN: r84676
 2004-07-14 07:32:22 +00:00
Zdenek Dvorak
a7e5372d6a tree-ssa-loop-im.c: New file. 
* tree-ssa-loop-im.c: New file.
	* Makefile.in (tree-ssa-loop-im.o): Add.
	* cfgloop.c (superloop_at_depth): New function.
	* cfgloop.h (superloop_at_depth): Declare.
	* common.opt (ftree-lim): New flag.
	* expr.c (array_ref_up_bound): New function.
	* params.def (PARAM_LIM_EXPENSIVE): New parameter.
	* timevar.def (TV_LIM): New timevar.
	* tree-dfa.c (compute_immediate_uses): Respect TDFA_USE flags when
	computing immediate uses of a phi node.
	* tree-flow.h (struct tree_ann_common_d): Add aux field.
	(loop_commit_inserts, for_each_index, tree_ssa_lim): Declare.
	* tree-optimize.c (init_tree_optimization_passes): Add pass_lim.
	* tree-pass.h (pass_lim): Declare.
	* tree-ssa-loop.c (tree_ssa_loop_im, gate_tree_ssa_loop_im): New
	functions.
	(pass_lim): New pass structure.
	* tree-eh.c (tree_could_trap_p): Handle ARRAY_REFs correctly.
	* tree.c (in_array_bounds_p): New function.
	* tree.h (TREE_THIS_NOTRAP): Define also for ARRAY_REFs.
	(in_array_bounds_p, array_ref_up_bound): Declare.
	* doc/invoke.texi (-ftree-lim, --param lim-expensive): Document.
	* doc/passes.texi (tree-ssa-loop-im.c): Document.

From-SVN: r84441
 2004-07-10 04:57:58 +00:00
Diego Novillo
d8903b30e1 tree-dfa.c (dump_variable): If the variable is a pointer SSA_NAME, also dump its points-to information. 
* tree-dfa.c (dump_variable): If the variable is a pointer
	SSA_NAME, also dump its points-to information.
	* tree-flow.h (struct ptr_info_def): Add field
	is_dereferenced.
	(dump_points_to_info_for): Declare.
	(debug_points_to_info_for): Declare.
	* tree-optimize.c (init_tree_optimization_passes): Add a
	second alias analysis pass after DOM2.
	Move pass_del_pta to a later spot.
	* tree-ssa-alias.c (compute_points_to_and_addr_escape): Do not
	create a name tags when we find a dereferenced pointer.  Just
	mark the pointer dereferenced.
	(collect_points_to_info_for): Move code to clear points-to
	information to create_name_tags.
	(create_name_tags): New function.
	(compute_flow_sensitive_aliasing): Call it.
	(setup_pointers_and_addressables): Mark type tags for renaming
	here instead of ...
	(create_memory_tag): ... here.
	(merge_pointed_to_info): Do not merge PT_MALLOC attributes.
	(dump_points_to_info_for): Declare extern.
	(debug_points_to_info_for): New function.

From-SVN: r84377
 2004-07-09 11:12:48 -04:00
Richard Kenner
75822272d9 tree-dfa.c (get_virtual_var): Merge real/imaginary parts with handled_component_p handling. 
* tree-dfa.c (get_virtual_var): Merge real/imaginary parts with
	handled_component_p handling.
	* tree-gimple.c (get_base_address): Likewise and fix typo that
	caused both recursion and looping.

From-SVN: r83669
 2004-06-25 14:30:09 -04:00
Richard Kenner
aa4a53af51 Update whitespace and comments 
From-SVN: r83632
 2004-06-24 22:00:16 -04:00
Diego Novillo
33c94679bd Makefile.in (tree-vn.o): New. 
* Makefile.in (tree-vn.o): New.
	(tree-ssa-pre.o): Don't depend on RTL_H.
	* tree-dfa.c (find_referenced_vars): Don't call init_tree_ssa.
	* tree-flow.h (struct var_ann_d): Remove field expr_set.
	(add_to_value, expressions_equal_p, get_value_handle, vn_compute,
	vn_lookup_or_add, vn_add, vn_lookup, vn_init, vn_delete): Declare.
	* tree-optimize.c (execute_init_datastructures): New local function.
	(pass_init_datastructures): New local variable.
	(init_tree_optimization_passes): Sequence pass_init_datastructures.
	* tree-pretty-print.c (MASK_POINTER): Remove.
	(dump_generic_node): Handle VALUE_HANDLE.
	* tree-ssa-pre.c: Move all value numbering routines to tree-vn.c.
	Update callers to use new function names.
	Use VALUE_HANDLE_ID and VALUE_HANDLE_EXPR_SET instead of
	variable annotations.
	* tree-ssa.c (init_tree_ssa): Call vn_init.
	(delete_tree_ssa): Call vn_delete.
	* tree-vn.c: New file.
	* tree.c (tree_size): Handle VALUE_HANDLE.
	(tree_node_structure): Likewise.
	(iterative_hash_expr): Likewise.
	* tree.def (VALUE_HANDLE): New code.
	* tree.h (struct tree_value_handle): New.
	(VALUE_HANDLE_ID): Define.
	(VALUE_HANDLE_EXPR_SET): Define.
	(enum tree_node_structure_enum): Add TS_VALUE_HANDLE.
	(union tree_node): Add struct tree_value_handle.

From-SVN: r83564
 2004-06-23 16:12:44 -04:00
Richard Kenner
44de5aeb00 alias.c (adjust_offset_for_component_ref): Use component_ref_field_offset. 
* alias.c (adjust_offset_for_component_ref): Use
	component_ref_field_offset.
	* c-decl.c (build_array_declarator): Add news args for ARRAY_REF.
	* c-gimplify.c (gimplify_expr_stmt): Use alloc_stmt_list.
	(gimplify_decl_stmt): Call gimplify_type_sizes for type.
	For decl, call gimplify_one_sizepos and use statement list.
	(gimplify_compound_literal_expr): New arg PRE_P.
	Add statement to PRE_P list and return DECL.
	(c_gimplify_expr, case COMPOUND_LITERAL_EXPR): Add arg to
	gimplify_compound_literal_expr.
	* c-tree.h (getdecls): Deleted.
	* c-typeck.c (build_component_ref): Add operand for COMPONENT_REF.
	(build_array_ref): Add two operands for ARRAY_REF.
	(build_unary_op): Set TREE_INVARIANT and TREE_CONSTANT for
	COMPOUND_LITERAL_EXPR.
	* coverage.c (tree_coverage_counter_ref): Add new operands
	for ARRAY_REF.
	* emit-rtl.c (component_ref_for_mem_expr): Add new operand
	for COMPONENT_REF.
	(set_mem_attributes_minus_bitpos): Use array_ref_low_bound
	and array_ref_element_size.
	(widen_memory_access):Use component_ref_field_offset.
	* explow.c (update_nonlocal_goto_save_area): Add two operands
	for ARRAY_REF.
	* expr.c (array_ref_element_size, array_ref_low_bound): New functions.
	(component_ref_field_offset): Likewise.
	(get_inner_reference): Use them.
	(expand_expr_real_1, case ARRAY_REF): Use array_ref_low_bound.
	* fold-const.c (fold, case EQ_EXPR): Properly handle DECL_SIZE.
	(fold_read_from_constant_string): Use array_ref_low_bound.
	Verify that result is a character type.
	(build_fold_indirect_ref): Add two operands for ARRAY_REF.
	* function.c (expand_function_start): Likewise.
	* gimple-low.c (expand_var_p): Delete duplicated line.
	* gimplify.c: Add static decls for local functions.
	(cgraph.h): Now included.
	(create_tmp_var): Remove check for ARRAY_TYPE.
	(copy_if_shared_r): Look at bounds and sizes of types.
	(build_and_jump): Return alloc_stmt_list instead of build_empty_stmt.
	(gimplify_exit_expr, shortcut_cond_expr): Likewise.
	(gimplify_save_expr, gimple_push_cleanup): Likewise.
	(gimplify_init_constructor): Likewise.
	WANT_VALUE now bool.
	If empty list with no result wanted, return GS_UNHANDLED.
	Add additional operands for ARRAY_REF and COMPONENT_REF.
	(canonicalize_component_ref): Convert to &array[L].
	(gimplify_array_ref_to_plus): Use array_ref_element_size and
	array_ref_lower_bound.
	(build_addr_expr_with_type, build_addr_expr): New functions.
	(gimplify_compound_lval): WANT_LVALUE now bool.
	Major rework to allow handle_component_p and initialize and
	gimplify new operands for ARRAY_REF, ARRAY_RANGE_REF, and
	COMPONENT_REF.
	(gimplify_array_ref): Deleted.
	(gimplify_self_mod_expr): WANT_VALUE now bool.
	(gimplify_modify_expr): Gimplify to_p and from_p later.
	Factor out code into gimplify_modify_expr_rhs and call twice.
	Move variable-size code earlier and handle PLACEHOLDER_EXPR.
	(gimplify_modify_expr_rhs, gimplify_variable_sized_compare): New fns.
	(gimplify_addr_expr, case VIEW_CONVERT_EXPR): New case.
	(gimplify_expr, case ARRAY_REF): Delete special case.
	Instead handle like COMPONENT_REF; also do ARRAY_RANGE_REF,
	IMAGPART, and REALPART the same way.
	(gimplify_expr, case VIEW_CONVERT_EXPR): New case.
	(gimplify_expr): Call gimplify_variable_sized_compare if applicable.
	Call alloc_stmt_list instead of build_empty_stmt.
	Deal with _REF that's volatile.
	(gimplify_type_sizes, gimplify_one_sizepos): New functions.
	(unshare_body, unvisit_body): New functions.
	(gimplify_body): Call them.
	* stmt.c (expand_stack_alloc): Don't expand TYPE_MAX_VALUE.
	* stor-layout.c (get_pending_sizes): Don't change SAVE_EXPR_CONTEXT.
	* tree-alias-common.c (get_alias_var): Also skip ARRAY_RANGE_REF.
	* tree-cfg.c (tree_node_can_be_shared): Treat ARRAY_RANGE_REF
	like ARRAY_REF.
	(verify_expr, case ADDR_EXPR): Use handled_component_p.
	* tree-dfa.c (get_virtual_var): Likewise.
	* tree-dump.c (dequeue_and_dump, case COMPONENT_REF, ARRAY_REF):
	New cases to dump new operands; likewise for ARRAY_RANGE_REF.
	* tree-eh.c (tree_could_trap, case ARRAY_RANGE_REF): Like ARRAY_REF.
	* tree-gimple.c (is_gimple_addr_expr_arg): Add ARRAY_RANGE_REF
	and INDIRECT_REF.
	(get_base_address): Use handled_component_p.
	* tree-gimple.h (gimplify_type_sizes, gimplify_one_sizepos): New.
	* tree-line.c (walk_tree): Walk more things for types and decls.
	* tree-mudflap.c (mf_build_check_statement_for): Add new operands
	for ARRAY_REF and COMPONENT_REF.
	(mx_xform_derefs_1): Clean up usage of decl sizes.
	* tree-nested.c (build_addr): Use handled_component_p.
	(walk_stmts, case CATCH_EXPR): Add missing "break".
	(get_static_chain, get_frame_field): Add new operand for COMPONENT_REF.
	(finalize_nesting_tree_1): Likewise.
	(convert_nonlocal_reference, case ARRAY_RANGE_REF): Like ARRAY_REF
	and process additional operands.
	(convert_local_reference): Likewise.
	* tree-outof-ssa.c (discover_nonconstant_array_refs_r): Treat
	ARRAY_RANGE_REF similarly to ARRAY_REF.
	* tree-pretty-print.c (dump_generic_node, case QUAL_UNION_TYPE): Handle
	like RECORD_TYPE.
	(dump_generic_node, case COMPONENT_REF): Print offset operand.
	(dump_generic_node, case ARRAY_RANGE_REF): Treat like ARRAY_REF
	and print lower bound and element size for both.
	(op_prio, case ARRAY_RANGE_REF): Like ARRAY_REF.
	* tree-sra.c (csc_build_component_ref): Add new operand.
	(scalarize_call_expr): Use get_base_address.
	* tree-ssa-ccp.c (widen_bitfield): Clean up size handling.
	(maybe_fold_offset_to_array_ref): Rework to handle input having an
	ARRAY_REF, refine handling of lower bound, and add new operands
	for ARRAY_REF.
	(maybe_fold_to_component_ref): Add new operand for COMPONENT_REF.
	(maybe_fold_stmt_indirect): Only fold *&B to B if types match.
	(maybe_fold_stmt_addition): Only handle constant lower bound.
	* tree-ssa-operands.c (get_expr_operands): Minor rearrangements.
	Treat ARRAY_REF and ARRAY_RANGE_REF the same; look at extra operands.
	Look at new offset operand of COMPONENT_REF.
	* tree-ssa.c (set_is_used): Use handled_component_p.
	* tree.c (substitute_in_expr, case COMPONENT_REF): Add new operand.
	(stabilize_reference, case COMPONENT_REF): Likewise.
	(stabilize_reference, case ARRAY_RANGE_REF, ARRAY_REF): Similarly.
	(recompute_tree_invariant_for_addr_expr): Completely rework to
	be more precise.  Also set TREE_SIDE_EFFECTS.
	(build1_stat, case ARRAY_EXPR): Don't handle TREE_SIDE_EFFECTS here.
	(build2_stat, build3_stat, build4_stat): For references,
	propagate TREE_THIS_VOLATILE.
	(get_unwidened): Add new operand for COMPONENT_REF.
	(get_narrower): Likewise; use host_integerp for DECL_SIZE.
	* tree.def (COMPONENT_REF): Add new operand.
	(ARRAY_REF, ARRAY_RANGE_REF): Add two new operands.
	* tree.h (array_ref_element_size, array_ref_low_bound): New decls.
	(component_ref_field_offset): Likewise.
	* config/alpha/alpha.c (alpha_va_start): Add new op for COMPONENT_REF.
	(alpha_gimplify_va_arg): Likewise.
	* config/i386/i386.c (ix86_va_start, ix86_gimplify_va_arg): Likewise.
	* config/i860/i860.c (i860_va_start, i860_va_arg): Likewise.
	* config/iq2000/iq2000.c (iq2000_va_arg): Likewise.
	* config/mips/mips.c (mips_va_start, mips_va_arg): Likewise.
	* config/rs6000/rs6000.c (rs6000_va_start, rs6000_gimplify_va_arg):
	Likewise.
	* config/s390/s390.c (s390_va_start, s390_gimplify_va_arg): Likewise.
	* config/sh/sh.c (sh_va_start, sh_va_arg): Likewise.
	* config/stormy16/stormy16.c (xstormy1_expand_builin_va_start):
	Likewise.
	(xstormy16_expand_builtin_va_arg): Likewise.
	* config/xtensa/xtensa.c (xtensa_va_start, xtensa_va_arg): Likewise.

	* cp/call.c (build_vfield_ref): Add new operand for COMPONENT_REF.
	(build_new_method_call): Likewise.
	* cp/decl.c (local_variable_p_walkfn): Don't walk into types.
	* cp/decl2.c (grok_array_decl): Add new operands for ARRAY_REF.
	(build_anon_union_vars): Add new operand for COMPONENT_REF.
	* cp/init.c (buld_new): Add new operand for ARRAY_REF.
	* cp/method.c (do_build_copy_constructor): New op for COMPONENT_REF.
	(do_build_assign_ref): Likewise.
	* cp/parser.c (cp_parser_direct_new_declarator): Add new operands
	for ARRAY_REF.
	(cp_parser_direct_declarator): Likewise.
	* cp/pt.c (tsubst): Likewise.
	(tsubst_copy, tsubst_copy_and_build): Likewise; also add new operand
 	for COMPONENT_REF.
	* cp/semantics.c (finish_non_static_data_member): Add new operand
	for COMPONENT_REF.
	* cp/typeck.c (build_class_member_access_expr): Likewise.
	(build_class_member_access_expr, finish_class_member_access_expr):
	Likewise.
	(build_ptrmemfunc_access_expr): Likewise.
	(build_array_ref): Add new operands for ARRAY_REF.
	* cp/typeck2.c (split_nonconstant_init_1): Likewise; COMPONENT_REF too.
	* cp/tree.c (count_trees_r, no_linkage_helper): Don't walk in types.

	* fortran/f95-lang.c (LANG_HOOKS_GIMPLE_BEFORE_INLINING): Deleted.
	* fortran/trans-array.c (gfc_conv_descriptor_data): Add operand
	for COMPONENT_REF.
	(gfc_conv_descriptor_offset, gfc_conv_descriptor_dtype): Likewise.
	(gfc_conv_descriptor_dimension, gfc_conv_descriptor_stride): Likewise.
	(gfc_conv_descriptor_lbound, gfc_conv_descriptor_ubound): Likewise.
	* fortran/trans-common.c (create_common): Likewise.
	* fortran/trans-expr.c (gfc_conv_component_ref): Likewise.
	* fortran/trans-io.c (set_parameter_value): Likewise.
	(set_parameter_ref, set_string, set_flag, io_result): Likewise.
	(transfer_expr): Likewise.
	* fortran/trans-decl.c (gfc_trans_auto_character_variable):
	Set up to get DECL_SIZE and DECL_SIZE_UNIT gimplified.
	(gfc_simplify_function): New function.
	(gfc_generate_function-code): Properly handle nested functions.
	* fortran/trans.c (gfc_build_array_ref): Add two new operands
	for ARRAY_REF.

	* java/class.c (build_class_ref): Add new operand for COMPONENT_REF.
	(build_static_field_ref): Likewise and add new operands for ARRAY_REF.
	* java/constants.c (build_ref_from_constant_pool): Likewise.
	* java/expr.c (build_java_array_length_access): Likewise.
	(build_get_class, build_field_ref, build_known_method_ref): Likewise.
	(invoke_build_dtable, build_invokevirtual): Likewise.
	(build_invokeinterface, java_expand_expr): Likewise.
	(emit_init_test_initialization): Likewise.
	* java/java-gimplify.c (java_gimplify_new_array_init): Likewise.
	* java/parse.y (make_qualifed_name, build_array_ref): Likewise.

	* objc/ojbc-act.c (generate_static_references): Add additional
	operands to ARRAY_REF.
	(generate_strings, build_method_prototype_list_template): Likewise.
	(generate_protocol_list): Likewise.

From-SVN: r83474
 2004-06-21 23:07:05 -04:00
Daniel Berlin
06d72ee6e3 tree-dfa.c (create_var_ann): tree_ann -> tree_ann_t. 
2004-06-18  Daniel Berlin  <dberlin@dberlin.org>
			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.

Co-Authored-By: Diego Novillo <dnovillo@redhat.com>

From-SVN: r83349
 2004-06-18 14:05:20 +00:00
Steven Bosscher
1719288464 tree.h (PHI_CHAIN): New. 
* tree.h (PHI_CHAIN): New.
	* (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.

From-SVN: r83273
 2004-06-16 23:03:34 +00:00
Daniel Berlin
c8a6f15498 tree-flow-inline.h (stmt_ann): Remove use of is_essa_node. 
2004-06-15  Daniel Berlin  <dberlin@dberlin.org>

	* 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.

From-SVN: r83196
 2004-06-15 18:37:34 +00:00
Daniel Berlin
7e6eb623f9 [multiple changes] 
2004-06-11  Steven Bosscher <stevenb@suse.de>

	* 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..

From-SVN: r83010
 2004-06-12 00:18:35 +00:00
Brian Booth
a32b97a20d tree-ssa.texi: Remove references to VDEF and add descriptions of V_MAY_DEF and V_MUST_DEF. 
* doc/tree-ssa.texi: Remove references to VDEF and add descriptions
	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.

From-SVN: r82947
 2004-06-10 21:41:08 +00:00
Diego Novillo
313679b0b9 Move SSA_NAME annotations into tree_ssa_name. 
* 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'.

From-SVN: r82864
 2004-06-09 18:58:29 -04:00
Kazu Hirata
9cf737f89f bb-reorder.c, [...]: Fix comment formatting. 
* bb-reorder.c, builtins.c, c-common.c, c-gimplify.c,
	c-incpath.c, cgraphunit.c, ddg.c, defaults.h, dwarf2out.c,
	expmed.c, flags.h, gcc.c, gensupport.c, gimplify.c, global.c,
	passes.c, reg-stack.c, target.h, toplev.c, tree-alias-ander.c,
	tree-alias-common.c, tree-cfg.c, tree-complex.c, tree-dfa.c,
	tree-eh.c, tree-mudflap.c, tree-mudflap.h, tree-outof-ssa.c,
	tree-phinodes.c, tree-pretty-print.c, tree-ssa-alias.c,
	tree-ssa-ccp.c, tree-ssa-live.c, tree-ssa-live.h,
	tree-ssa-pre.c, tree.h, value-prof.h, varasm.c: Fix comment
	formatting.

From-SVN: r82463
 2004-05-30 18:32:31 +00:00
Steven Bosscher
673fda6b48 c-gimplify.c (c_genericize): Replace calls via (*lang_hooks.foo) with lang_hooks.foo. 
* c-gimplify.c (c_genericize):
	Replace calls via (*lang_hooks.foo) with lang_hooks.foo.
	* c-parse.in <expr_no_commas>: Likewise.
	<if_prefix>: Likewise.
	<select_or_iter_stmt>: Likewise.
	* expr.c (expand_var, expand_expr_real_1): Likewise.
	* expr.h (expand_expr): Make it a static inline function.
	Move prototype for expand_expr_real up before this.
	* fold-const.c (fold_relational_hi_lo, fold_relational_const):
	Likewise.
	* gimplify.c (gimple_boolify, gimplify_addr_expr,
	gimplify_asm_expr, gimplify_expr): Likewise.
	* tree-cfg.c (dump_tree_cfg, dump_cfg_stats, tree_cfg2vcg,
	dump_function_to_file): Likewise.
	* tree-dfa.c (dump_immediate_uses, dump_dfa_stats): Likewise.
	* tree-inline.c (remap_block, save_body, walk_tree): Likewise.
	* tree-into-ssa.c (dump_tree_ssa): Likewise.
	* tree-mudflap.c (mf_varname_tree, mf_file_function_line_tree):
	Likewise.
	* tree-optimize.c (execute_one_pass): Likewise.
	* tree-pretty-print.c (dump_generic_bb_buff): Likewise.
	* tree-ssa-alias.c (dump_alias_stats, dump_alias_info): Likewise.

objc/
	* objc-act.c (objc_build_try_enter_fragment,
	objc_build_try_epilogue, objc_build_catch_stmt,
	objc_build_finally_prologue): Replace calls via (*lang_hooks.foo)
	with lang_hooks.foo ().

From-SVN: r81907
 2004-05-15 23:07:53 +00:00
Andrew Pinski
571325db59 re PR tree-optimization/14466 (missed PHI optimization (different types)) 
2004-05-14  Andrew Pinski  <pinskia@physics.uc.edu>

 	        PR optimization/14466
        * tree-complex.c (make_temp): Remove.
        (gimplify_val): Replace make_temp with make_rename_temp
        and add NULL as the second argument.
        (expand_complex_div_wide): Likewise.
        * tree-dfa.c (make_rename_temp): New function.
        * tree-flow.h (make_rename_temp): Declare.
        * tree-sra.c (make_temp): Remove.
        (lookup_scalar): Replace make_temp with make_rename_temp.
        (create_scalar_copies): Likewise.
        * tree-ssa-phiopt.c (conditional_replacement): When we
        get non gimple create a temporary variable to hold the
        casted expression.

2004-05-14  Andrew Pinski  <pinskia@physics.uc.edu>

	        PR optimization/14466
        * gcc.dg/tree-ssa/20040514-1.c: New test.

From-SVN: r81847
 2004-05-14 08:27:37 -07:00