Commit Graph

62 Commits

Author SHA1 Message Date
Diego Novillo
38635499e9 [multiple changes]
2006-12-11  Diego Novillo  <dnovillo@redhat.com>

	* doc/tree-ssa.texi: Update documentation for virtual operands
	and the use of push_stmt_changes/pop_stmt_changes.
	* doc/invoke.texi: Remove documentation for params
	global-var-threshold.
	Update documentation on max-aliased-vops.

	* tree-into-ssa.c: Cleanup comments, variables and
	spacing in various functions.
	(regs_to_rename): Declare.
	(mem_syms_to_rename): Declare.
	(dump_update_ssa): Declare.
	(debug_update_ssa): Declare.
	(dump_names_replaced_by): Declare.
	(debug_names_replaced_by): Declare.
	(dump_def_blocks): Declare.
	(debug_def_blocks): Declare.
	(dump_defs_stack): Declare.
	(debug_defs_stack): Declare.
	(dump_currdefs): Declare.
	(debug_currdefs): Declare.
	(mark_def_sites): Do not handle virtual operands.
	(compute_idf): Rename from find_idf.  Update users.
	(register_new_def): Make local.  Convert second argument
	to 'tree'.
	Use BLOCK_DEFS_STACK directly.
	If pushing a non-register, also push the underlying
	symbol.
	(rewrite_stmt): Do not handle virtual operands.
	(dump_tree_ssa): Call dump_def_blocks, dump_defs_stack,
	dump_currdefs and dump_tree_ssa_stats.
	(dump_tree_ssa_stats): Also dump REPL_TBL.
	(replace_use): Remove.  Update all users to call SET_USE
	instead.
	(rewrite_blocks): Move code to free memory to
	fini_ssa_renamer.
	(mark_def_site_blocks): Move initialization code to
	init_ssa_renamer.
	(init_ssa_renamer): New.
	(fini_ssa_renamer): New.
	(rewrite_into_ssa): Call them.
	(prepare_block_for_update): Process SSA_OP_ALL_USES first
	and SSA_OP_ALL_DEFS later.  Do not process virtual
	operands separately.
	(dump_update_ssa): Call dump_decl_set.
	(init_update_ssa): Initialize regs_to_rename and
	mem_syms_to_rename.
	Call init_ssa_renamer.
	(delete_update_ssa): Call fini_ssa_renamer.
	Free blocks_with_phis_to_rewrite.
	(mark_sym_for_renaming): If the variable has
	sub-variables, also mark them.
	If the variable belongs to a partition, also mark it.
	(mark_set_for_renaming): Call mark_sym_for_renaming on
	every symbol in the set.
	(switch_virtuals_to_full_rewrite): Call
	mark_set_for_renaming.
	(update_ssa): Separate syms_to_rename into regs_to_rename
	and mem_syms_to_rename.

	* tree-dump.c (dump_options): Add TDF_MEMSYMS.
	* tree-pretty-print.c (debug_generic_expr): Add TDF_MEMSYMS.
	(debug_generic_stmt): Likewise.
	(debug_tree_chain): Likewise.
	(dump_symbols): New.
	(dump_generic_node): Check for TDF_MEMSYMS.
	Handle MEMORY_PARTITION_TAG.
	If the statement references memory and TDF_MEMSYMS is
	given, call dump_symbols.
	Indicate default names with (D).
	(dump_vops): Update for new virtual operator format.

	* tree.c (init_ttree): Add MEMORY_PARTITION_TAG to
	tree_contains_struct.
	(tree_code_size): Handle MEMORY_PARTITION_TAG.
	(tree_node_structure): Likewise.
	(needs_to_live_in_memory): Handle SSA names.
	* tree.h (MTAG_P): Likewise.
	(struct tree_memory_partition_tag): Declare.
	(MPT_SYMBOLS): Define.
	(union tree_node): Add field 'mpt'.
	* treestruct.def (TS_MEMORY_PARTITION_TAG): Define.
	* tree.def (MEMORY_PARTITION_TAG): Define.

	* tree-pass.h (TDF_MEMSYMS): Define.

	* params.h (GLOBAL_VAR_THRESHOLD): Remove.

	* tree-ssa-alias.c: Include pointer-set.h
	(struct alias_map_d): Remove fields total_alias_vops,
	grouped_p and may_aliases.  Update all users.
	(struct mp_info_def): Declare.
	(mp_info_t): New type.
	(get_smt_for): Rename from get_tmt_for.  Update all
	users.
	(add_may_alias): Add argument ALREADY_ADDED.  If given,
	use it to avoid adding duplicate entries to alias sets.
	(replace_may_alias): Remove.  Update all users.
	(total_alias_vops_cmp): Remove.  Update all users.
	(group_aliases_into): Remove.  Update all users.
	(tree_pointer_compare): Remove.  Update all users.
	(compact_name_tags): Remove.  Update all users.
	(group_aliases): Remove.  Update all users.
	(mark_non_addressable): Move from tree-flow-inline.h.
	Remove the symbol from the partition holding it, if
	needed.
	(dump_mp_info): New.
	(debug_mp_info): New.
	(sort_mp_info): New.
	(create_partition_for): New.
	(rewrite_alias_set_for): New.
	(compute_memory_partitions): New.
	(compute_may_aliases): Call it.
	(init_alias_info): If computing aliases for the first
	time, mark every memory symbol for renaming.
	(have_common_aliases_p): New.
	(compute_flow_insensitive_aliasing): Call it.
	(setup_pointers_and_addressables): Do not cache
	num_referenced_vars.
	For register promoted symbols, mark their former
	partition for renaming.
	(maybe_create_global_var): Only create .GLOBAL_VAR if
	there are no call-clobbered variables and a mix of pure
	and non-pure functions were found.
	(may_alias_p): Tidy comments.
	(create_tag_raw): Remove unused variable new_type.
	(dump_alias_info): call dump_memory_partitions.
	(dump_points_to_info_for): Call dump_decl_set.
	(may_be_aliased): Tidy comments and formatting.

	* timevar.def (TV_MEMORY_PARTITIONING): Define.
	* tree-vectorizer.c (vect_memsyms_to_rename): Rename from
	vect_vnames_to_rename.  Set DECL_UIDs instead of SSA name
	versions in it.
	(slpeel_update_phi_nodes_for_guard1): Ignore memory PHIs.
	* tree-vect-transform.c (vect_transform_loop): Call
	mark_set_for_renaming with vect_memsyms_to_rename.
	* tree-flow-inline.h (zero_imm_uses_p): New.
	(memory_partition): New.
	(set_memory_partition): New.
	(factoring_name_p): New.
	(symbol_mem_tag): New.  Update every function that used
	to access the annotation directly.
	(set_symbol_mem_tag): Likewise.

	* tree-ssa-copy.c (may_propagate_copy): Allow copies
	between a partition and a symbol as long as the symbol
	belongs to the partition.
	(merge_alias_info): Ignore merge requests when memory
	partitions are involved.

	* tree-ssa.c (verify_ssa_name): Check that default
	definitions have empty defining statements.
	(verify_use): Remove argument IS_VIRTUAL.
	Don't call verify_ssa_name.
	(verify_phi_args): Call verify_ssa_name.
	(verify_flow_insensitive_alias_info): Handle MPTs.
	(verify_flow_sensitive_alias_info): Likewise.
	(verify_name_tags): Likewise.
	(verify_call_clobbering): Likewise.
	(verify_ssa): Check for VOPs only after aliasing
	information is available.
	Check virtuals and real operands separately.
	Call verify_ssa_name on every operand.
	(stmt_references_memory_p): Move to tree-ssa-operands.c.
	(walk_use_def_chains_1): Guard against NULL PHI
	arguments.

	* tree-ssa-operands.c (stmt_references_memory_p): Move from
	tree-ssa.c.
	(get_mpt_for): New.
	(dump_memory_partitions): New.
	(debug_memory_partitions): New.

	* tree-flow.h (struct var_ann_d): Add field mpt.
	(struct stmt_ann_d): Add bitfield references_memory.
	* Makefile.in (tree-ssa-structalias.o): Include
	pointer-set.h
	(tree-ssa-alias.o): Likewise.
	* tree-ssa-structalias.c: (update_alias_info): Use
	STORED_SYMS to determine which variables are being
	written to by the store operation.
	* tree-ssa-structalias.h (struct alias_info)
	<total_alias_vops>: Remove.  Update all users.
	<written_vars>: Change to a pointer set.  Update all
	users.
	<dereferenced_ptrs_store>: Likewise.
	<dereferenced_ptrs_load>: Likewise.
	(NUM_REFERENCES): Remove.  Update all users.
	(NUM_REFERENCES_CLEAR): Remove.  Update all users.
	(NUM_REFERENCES_INC): Remove.  Update all users.
	(NUM_REFERENCES_SET): Remove.  Update all users.

	* params.def (PARAM_GLOBAL_VAR_THRESHOLD): Remove.
	Update all users.
	(PARAM_MAX_ALIASED_VOPS): Set to 10.
	* tree-ssanames.c (make_ssa_name): Initialize
	SSA_NAME_IS_DEFAULT_DEF to 0.

2006-12-11  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-dse.c (aggregate_vardecl_d): New.
	(dse_global_data): Add aggregate_vardecl field.
	(dse_possible_dead_store_p): New.
	Add prev_defvar variable.
	Allow immediate uses and previous immediate uses to differ
	if they are setting different parts of the whole.
	(get_aggregate_vardecl): New.
	(dse_record_partial_aggregate_store): New.
	(dse_whole_aggregate_clobbered_p): New.
	(dse_partial_kill_p): New.
	(dse_optimize_stmt): Abstract code checking a possible dead store
	into new function dse_possible_dead_store_p().
	Call dse_maybe_record_aggregate_store().
	When checking whether a STMT and its USE_STMT refer to the
	same memory address, check also for partial kills that clobber
	the whole.
	Move some variable definitions to the block where they are used.
	(aggregate_vardecl_hash): New.
	(aggregate_vardecl_eq): New.
	(aggregate_vardecl_free): New.
	(aggregate_whole_store_p): New.
	(tree_ssa_dse): Initialize and free aggregate_vardecl.
	Mark which aggregate stores we care about.

2006-12-11  Andrew Macleod  <amacleod@redhat.com>

	* tree-ssa-operands.h (struct vuse_element_d): Declare.
	(vuse_element_t): Declare.
	(struct vuse_vec_d): Declare.
	(vuse_vec_p): Declare.
	(VUSE_VECT_NUM_ELEM): Define.
	(VUSE_VECT_ELEMENT_NC): Define.
	(VUSE_ELEMENT_PTR_NC): Define.
	(VUSE_ELEMENT_VAR_NC): Define.
	(VUSE_VECT_ELEMENT): Define.
	(VUSE_ELEMENT_PTR): Define.
	(VUSE_ELEMENT_VAR): Define.
	(struct maydef_optype_d) <use_var>: Remove.
	<use_ptr>: Remove.
	<usev>: Add.
	(struct vuse_optype_d) <kill_var>: Remove.
	<use_ptr>: Remove.
	<usev>: Add.
	(struct mustdef_optype_d) <kill_var>: Remove.
	<use_ptr>: Remove.
	<usev>: Add.
	(VUSE_OP_PTR): Add argument.  Use VUSE_ELEMENT_PTR.
	(VUSE_OP): Add argument.  Use VUSE_ELEMENT_PTR.
	(VUSE_NUM): Define.
	(VUSE_VECT): Define.
	(MAYDEF_OP_PTR): Add argument.  Use VUSE_OP_PTR.
	(MAYDEF_OP): Add argument.  Use VUSE_OP.
	(MAYDEF_NUM): Define.
	(MAYDEF_VECT): Define.
	(MUSTDEF_KILL_PTR): Use VUSE_OP_PTR.
	(MUSTDEF_KILL): Use VUSE_OP.
	(MUSTDEF_NUM): Define.
	(MUSTDEF_VECT): Define.
	(realloc_maydef): Declare.
	(realloc_vuse): Declare.
	(struct ssa_operand_iterator_d) <vuse_index>: Add.
	<mayuse_index>: Add.
	(LOADED_SYMS): Define.
	(STORED_SYMS): Define.
	(FOR_EACH_SSA_MUSTDEF_OPERAND): Call op_iter_next_mustdef.
	* tree-into-ssa.c: Adapt for multi-operand V_MAY_DEF and VUSE
	operators.
	* tree-pretty-print.c: Likewise.
	* tree-ssa-dse.c: Likewise.
	* tree-flow-inline.h: Likewise.
	(op_iter_next_mustdef): New.
	* tree-ssa-operands.c: Likewise.
	(ALLOC_OPTYPE): Remove.
	Update all users.
	(alloc_def): New.
	(alloc_use): New.
	(alloc_maydef): New.
	(alloc_vuse): New.
	(alloc_mustdef): New.
	(realloc_maydef): New.
	(realloc_vuse): New.

2006-12-11  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-operands.c: Remove build_v_must_defs.
	(init_ssa_operands): Delete build_v_must_defs.
	(finalize_ssa_v_must_def_ops): Remove.
	(finalize_ssa_v_must_defs): Remove.
	(finalize_ssa_stmt_operands): Do not call
	finalize_ssa_v_must_defs.
	(start_ssa_stmt_operands): Do not check build_v_must_defs.
	(append_v_must_def): Delete.
	(copy_virtual_operands): Do not copy V_MUST_DEFs.
	(get_modify_expr_operands): Remove reference to V_MUST_DEF from
	comment.  Remove opf_kill_def.
	(build_ssa_operands): Remove references to v_must_defs.
	(copy_virtual_operands): Same.
	(copy_virtual_operands): Same.
	(fini_ssa_operands): Same.
	(free_ssa_operands): Same.
	(add_mustdef_op): Remove.
	Remove mustdef_optype_p.
	(alloc_mustdef): Remove.
	Remove references to V_MUST_DEFs in comment at top of file.
	(get_expr_operands): Remove opf_kill_def.
	(opf_kill_def): Remove.
	(add_virtual_operand): Remove opf_kill_def.
	(get_indirect_ref_operands): Same.
	(get_tmr_operands): Same.

	* tree-vectorizer.c (rename_variables_in_bb): Remove
	SSA_OP_ALL_KILLS.

	* tree-ssa-loop-manip.c (find_uses_to_rename_stmt): Remove
	SSA_OP_ALL_KILLS.
	(check_loop_closed_ssa_stmt): Same.

	* tree-ssa.c (verify_def): Remove V_MUST_DEF from comment.
	(verify_use): Same.
	(verify_ssa): Remove V_MUST_DEFs traces.
	(verify_ssa): Remove SSA_OP_ALL_KILLS.

	* tree-into-ssa.c (mark_def_sites): Change SSA_OP_VMUSTDEF to
	SSA_OP_VMAYDEF.
	(rewrite_update_stmt): Remove SSA_OP_VIRTUAL_KILLS.
	(rewrite_stmt): Remove SSA_OP_ALL_KILLS.

	* tree-ssa-operands.h (struct stmt_operands_d): Remove V_MUST_DEF
	references.
	(MUSTDEF_OPS): Remove.
	(SSA_OP_VMUSTDEF): Remove.
	(FOR_EACH_SSA_MUSTDEF_OPERAND): Remove.
	(struct mustdef_optype_d): Remove.
	Remove mustdef_optype_p.
	(struct stmt_operands_d): Remove mustdef_ops.
	(ssa_operand_iterator_d): Remove mustdefs and mustkills.
	(SSA_OP_VIRTUAL_DEFS): Remove SSA_OP_VMUSTDEF.
	(MUSTDEF_RESULT_PTR): Remove.
	(MUSTDEF_RESULT): Remove.
	(MUSTDEF_KILL_PTR): Remove.
	(MUSTDEF_KILL): Remove.
	(MUSTDEF_NUM): Remove.
	(MUSTDEF_VECT): Remove.
	(SSA_OP_VIRTUAL_KILLS): Remove.
	(SSA_OP_ALL_VIRTUALS): Remove SSA_OP_VIRTUAL_KILLS.
	(SSA_OP_VMUSTKILL): Remove.
	(SSA_OP_ALL_KILLS): Remove.
	(SSA_OP_ALL_OPERANDS): Remove SSA_OP_ALL_KILLS.

	* tree-flow-inline.h (op_iter_init_def): Remove
	SSA_OP_VIRTUAL_KILLS.
	(delink_stmt_imm_use): Remove SSA_OP_ALL_KILLS.

	* tree-ssa-pre.c (compute_rvuse_and_antic_safe): Remove
	SSA_OP_VIRTUAL_KILLS.

	* tree-ssa-loop-im.c (determine_max_movement): Remove
	SSA_OP_VIRTUAL_KILLS.
	(gather_mem_refs_stmt): Same.
	(gather_mem_refs_stmt): Same.

	* tree-ssa-dce.c (mark_really_necessary_kill_operand_phis): Delete.
	(perform_tree_ssa_dce): Remove call to
	mark_really_necessary_kill_operand_phis.

	* tree-flow-inline.h (op_iter_init): Remove setting of mustdefs
	and mustkills.
	(op_iter_next_use): Do not check mustkills.
	(op_iter_next_def): Do not check mustdefs.
	(op_iter_next_tree): Do not check mustkills or mustdefs.
	(clear_and_done_ssa_iter): Do not set mustdefs or mustkills.
	(op_iter_next_maymustdef): Do not check mustkills.
	(op_iter_init_must_and_may_def): Remove SSA_OP_VMUSTKILL.
	(op_iter_init_mustdef): Remove.

	* tree-ssa-live.c (create_ssa_var_map): Change SSA_OP_VMUSTDEF to
	SSA_OP_VMAYDEF.

	* tree-ssa-dse.c (dse_optimize_stmt): Remove SSA_OP_VMUSTDEF.

	* tree-ssa-ccp.c: Remove V_MUST_DEF traces from comments.
	(visit_assignment): Same.

	* tree-ssa-copy.c (copy_prop_visit_assignment): Same.

	* tree-sra.c (mark_all_v_defs_1): Remove V_MUST_DEF from comment.

	* tree-outof-ssa.c (check_replaceable): Remove SSA_OP_VMUSTDEF.

	* tree-pretty-print.c (dump_vops): Remove printing of V_MUST_DEF.
	Remove kill_p variable.

	* tree-dfa.c (struct dfa_stats_d): Remove num_v_must_defs.
	(dump_dfa_stats): Remove code related to V_MUST_DEFs.
	(collect_dfa_stats_r): Do not set num_v_must_defs.
	(mark_new_vars_to_rename): Remove v_must_defs_{before,after}
	code.

	* tree-into-ssa.c (mark_def_sites): Change SSA_OP_VMUSTKILL to
	SSA_OP_VMAYUSE.

	* tree-ssa-pre.c (compute_rvuse_and_antic_safe): Remove
	SSA_OP_VMUSTDEF and SSA_OP_VMUSTKILL.

	* tree-ssa-propagate.c (stmt_makes_single_store): Remove
	SSA_OP_VMUSTDEF.

From-SVN: r119760
2006-12-11 20:48:51 -05:00
Zdenek Dvorak
42fd6772c6 tree-vrp.c (adjust_range_with_scev): Use get_chrec_loop.
* tree-vrp.c (adjust_range_with_scev): Use get_chrec_loop.
	* loop-unswitch.c (unswitch_loops): Use FOR_EACH_LOOP.
	* tree-loop-linear.c (linear_transform_loops): Ditto.
	* tree-ssa-loop-im.c (determine_lsm): Ditto.
	* tree-ssa-loop-niter.c (estimate_numbers_of_iterations,
	free_numbers_of_iterations_estimates): Ditto.
	* tree_ssa_unswitch_loops (tree_ssa_unswitch_loops): Ditto.
	* tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
	* tree-ssa-loop-ivopts.c (tree_ssa_iv_optimize): Ditto.
	* modulo-sched.c (sms_schedule): Ditto.
	* tree-ssa-loop-ivcanon.c (canonicalize_induction_variables,
	tree_unroll_loops_completely): Ditto.
	* predict.c (predict_loops): Ditto.
	* tree-if-conv.c (main_tree_if_conversion): Ditto.
	* loop-unroll.c (unroll_and_peel_loops, peel_loops_completely,
	decide_unrolling_and_peeling): Ditto.
	* cfgloopmanip.c (unloop): Use delete_loop.
	(place_new_loop): Access larray vector instead of parray.
	(create_preheaders, force_single_succ_latches,
	fix_loop_structure): Use FOR_EACH_LOOP and delete_loop..
	* loop-doloop.c (doloop_optimize_loops): Ditto.
	* loop-invariant.c (move_loop_invariants): Ditto.
	* tree-cfg.c (replace_uses_by): Ditto.
	* tree-ssa-loop-prefetch.c (tree_ssa_prefetch_arrays): Ditto.
	* tree-chrec.h (CHREC_VAR, CHREC_LEFT, CHREC_RIGHT, CHREC_VARIABLE):
	Moved to ...
	* tree.h (CHREC_VAR, CHREC_LEFT, CHREC_RIGHT, CHREC_VARIABLE):
	... here.
	* tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop,
	compute_overall_effect_of_inner_loop, chrec_is_positive): Use
	get_loop and get_chrec_loop.
	(number_of_iterations_for_all_loops): Use number_of_loops.
	(scev_initialize, scev_reset, scev_const_prop): Use FOR_EACH_LOOP.
	* tree-scalar-evolution.h (get_chrec_loop): New inline function.
	* cfgloopanal.c (mark_irreducible_loops): Use number_of_loops,
	and FOR_EACH_LOOP.
	* tree-chrec.c (evolution_function_is_invariant_rec_p,
	chrec_convert_1): Use get_loop and get_chrec_loop.
	* loop-init.c (loop_optimizer_init): Use number_of_loops.
	(loop_optimizer_init): Use FOR_EACH_LOOP.
	* tree-vectorizer.c (vect_loops_num): Removed.
	(vectorize_loops): Store number of loops locally.  Use
	FOR_EACH_LOOP and get_loop.
	* tree-vectorizer.h (vect_loops_num): Removed.
	* tree-data-ref.c (get_number_of_iters_for_loop): Use get_loop.
	(find_data_references_in_loop): Do not set parallel_p.
	* tree-data-ref.h: Do not declare VEC(loop_p).
	* cfgloop.c (flow_loops_dump, mark_single_exit_loops,
	verify_loop_structure): Use FOR_EACH_LOOP.
	(flow_loops_free): Use FOR_EACH_LOOP, free larray vector.
	(initialize_loops_parallel_p): Removed.
	(flow_loops_find): Push the loops into a vector.
	(delete_loop): New function.
	(cancel_loop): Use delete_loop.
	* cfgloop.h: Declare VEC(loop_p).
	(struct loop): Remove parallel_p field.
	(struct loops): Replace num and parray field by larray vector.
	Remove shared_headers field.
	(delete_loop): Declare.
	(get_loop, get_loops, number_of_loops, fel_next, fel_init,
	FOR_EACH_LOOP): New.
	* doc/loop.tex: Document new accessor functions.

From-SVN: r119713
2006-12-10 22:17:15 +00:00
Aldy Hernandez
07beea0df3 Merge gimple-tuples-branch into mainline.
From-SVN: r119546
2006-12-05 17:26:05 +00:00
Zdenek Dvorak
d73be2683d tree-vrp.c (execute_vrp): Do not pass loops structure through arguments.
* tree-vrp.c (execute_vrp): Do not pass loops structure through
	arguments.
	* loop-unswitch.c (unswitch_loops, unswitch_single_loop,
	unswitch_loop): Ditto.
	* tree-loop-linear.c (linear_transform_loops): Ditto.
	* tree-ssa-loop-im.c (determine_lsm, tree_ssa_lim_initialize,
	tree_ssa_lim): Ditto.
	* tree-ssa-loop-niter.c (estimate_numbers_of_iterations,
	free_numbers_of_iterations_estimates): Ditto.
	* tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops,
	tree_unswitch_single_loop, tree_unswitch_loop): Ditto.
	* cfgloopmanip.c (fix_bb_placement, fix_bb_placements,
	remove_path, add_loop, loopify, unloop, fix_loop_placements,
	place_new_loop, duplicate_loop, duplicate_subloops,
	update_single_exit_for_duplicated_loops, copy_loops_to,
	duplicate_loop_to_header_edge, create_preheaders,
	force_single_succ_latches, loop_version, fix_loop_structure):
	Ditto.
	* tree-ssa-loop-manip.c (tree_duplicate_loop_to_header_edge,
	tree_unroll_loop): Ditto.
	* tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
	* tree-scalar-evolution.c (select_loops_exit_conditions,
	scev_initialize, scev_analysis): Ditto.
	* tree-scalar-evolution.h (scev_initialize): Ditto.
	* cfghooks.c (cfg_hook_duplicate_loop_to_header_edge): Ditto.
	* cfgloopanal.c (mark_irreducible_loops, mark_loop_exit_edges): Ditto.
	* tree-ssa-loop-ivopts.c (tree_ssa_iv_optimize): Ditto.
	* modulo-sched.c (sms_schedule): Ditto.
	* tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
	* loop-init.c (loop_optimizer_init, rtl_move_loop_invariants,
	rtl_unswitch, rtl_unroll_and_peel_loops, rtl_doloop): Ditto.
	* ifcvt.c (if_convert): Ditto.
	* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely,
	canonicalize_loop_induction_variables,
	canonicalize_induction_variables,
	tree_unroll_loops_completely, remove_empty_loops): Ditto.
	* tree-ssa-loop.c (tree_ssa_loop_init, tree_ssa_loop_im,
	tree_ssa_loop_unswitch, tree_vectorize, tree_linear_transform,
	tree_ssa_loop_ivcanon, tree_ssa_empty_loop, tree_ssa_loop_bounds,
	tree_complete_unroll, tree_ssa_loop_prefetch, tree_ssa_loop_ivopts,
	tree_ssa_loop_done): Ditto.
	* predict.c (predict_loops, tree_estimate_probability, estimate_loops,
	estimate_bb_frequencies): Ditto.
	* tree-vectorizer.c (slpeel_tree_duplicate_loop_to_edge_cfg,
	slpeel_tree_peel_loop_to_edge, vectorize_loops): Ditto.
	* loop-unroll.c (unroll_and_peel_loops, peel_loops_completely,
	decide_unrolling_and_peeling, peel_loop_completely,
	unroll_loop_constant_iterations, unroll_loop_runtime_iterations,
	peel_loop_simple, unroll_loop_stupid): Ditto.
	* loop-doloop.c (doloop_optimize_loops): Ditto.
	* tree-cfgcleanup.c (cleanup_tree_cfg_loop): Ditto.
	* loop-invariant.c (move_loop_invariants): Ditto.
	* tree-ssa-dce.c (tree_ssa_dce_loop): Ditto.
	* tree-ssa-loop-prefetch.c (loop_prefetch_arrays,
	tree_ssa_prefetch_arrays): Ditto.
	* lambda-code.c (gcc_loopnest_to_lambda_loopnest, perfect_nestify):
	Ditto.
	* tree-vect-transform.c (vect_do_peeling_for_loop_bound,
	vect_do_peeling_for_alignment, vect_transform_loop): Ditto.
	* cfgloop.c (flow_loops_cfg_dump, flow_loops_dump,
	mark_single_exit_loops, cancel_loop, cancel_loop_tree,
	verify_loop_structure): Ditto.
	* tree-flow.h (vectorize_loops, tree_ssa_lim, tree_ssa_unswitch_loops,
	canonicalize_induction_variables, tree_unroll_loops_completely,
	tree_ssa_prefetch_arrays, remove_empty_loops, tree_ssa_iv_optimize,
	estimate_numbers_of_iterations, free_numbers_of_iterations_estimates,
	tree_duplicate_loop_to_header_edge, tree_ssa_loop_version,
	tree_unroll_loop, linear_transform_loops): Declaration changed.
	* basic-block.h: Remove declaration of struct loops.
	* cfghooks.h (struct cfg_hooks): Change type of
	cfg_hook_duplicate_loop_to_header_edge.
	(cfg_hook_duplicate_loop_to_header_edge): Declaration changed.
	* tree-vectorizer.h (slpeel_tree_peel_loop_to_edge,
	vect_transform_loop): Declaration changed.
	* lambda.h (gcc_loopnest_to_lambda_loopnest): Declaration changed.
	* cfgloop.h (flow_loops_dump, fix_loop_structure,
	mark_irreducible_loops, mark_single_exit_loops, mark_loop_exit_edges,
	cancel_loop_tree, create_preheaders, force_single_succ_latches,
	verify_loop_structure, duplicate_loop, duplicate_loop_to_header_edge,
	loopify, loop_version, remove_path, unswitch_loops,
	unroll_and_peel_loops, doloop_optimize_loops, move_loop_invariants):
	Declaration changed.

From-SVN: r119189
2006-11-25 10:34:13 +00:00
Zdenek Dvorak
ca83d38556 tree-ssa-loop-im.c (schedule_sm, [...]): Use vector of edges instead of array.
* tree-ssa-loop-im.c (schedule_sm, determine_lsm_ref,
	hoist_memory_references, loop_suitable_for_sm, determine_lsm_loop):
	Use vector of edges instead of array.
	* tree-ssa-loop-niter.c (find_loop_niter, find_loop_niter_by_eval,
	estimate_numbers_of_iterations_loop): Ditto.
	* predict.c (predict_loops): Ditto.
	* loop-unroll.c (analyze_insns_in_loop): Ditto.
	* tree-ssa-threadupdate.c: Remove declaration of heap allocation for
	edge vectors.
	* basic-block.h: Declare heap allocation for edge vectors.
	* tree-outof-ssa.c: Ditto.
	* cfgloop.c (get_loop_exit_edges): Return vector of edges.
	* cfgloop.h (get_loop_exit_edges): Declaration changed.

From-SVN: r119039
2006-11-21 00:20:02 +00:00
Zdenek Dvorak
598ec7bdbe tree-vrp.c (execute_vrp): Do not update current_loops.
* tree-vrp.c (execute_vrp): Do not update current_loops.
	* loop-unswitch.c (unswitch_loop): Do not use loop_split_edge_with.
	* doc/loop.texi: Remove documentation for cancelled functions.
	* tree-ssa-loop-im.c (loop_commit_inserts): Removed.
	(move_computations, determine_lsm): Use bsi_commit_edge_inserts
	instead.
	* cfgloopmanip.c (remove_bbs): Do not update loops explicitly.
	(remove_path): Ensure that in delete_basic_blocks, the loops
	are still allocated.
	(add_loop): Work on valid loop structures.
	(loopify): Modify call of add_loop.
	(mfb_update_loops): Removed.
	(create_preheader): Do not update loops explicitly.
	(force_single_succ_latches, loop_version): Do not use
	loop_split_edge_with.
	(loop_split_edge_with): Removed.
	* tree-ssa-loop-manip.c (create_iv, determine_exit_conditions):
	Do not use bsi_insert_on_edge_immediate_loop.
	(split_loop_exit_edge, tree_unroll_loop): Do not use
	loop_split_edge_with.
	(bsi_insert_on_edge_immediate_loop): Removed.
	* tree-ssa-loop-ch.c (copy_loop_headers): Use current_loops.  Do not
	use loop_split_edge_with.
	* cfghooks.c: Include cfgloop.h.
	(verify_flow_info): Verify that loop_father is filled iff current_loops
	are available.
	(redirect_edge_and_branch_force, split_block, delete_basic_block,
	split_edge, merge_blocks, make_forwarder_block, duplicate_block):
	Update cfg.
	* cfgloopanal.c (mark_irreducible_loops): Work if the function contains
	no loops.
	* modulo-sched.c (generate_prolog_epilog, canon_loop): Do not use
	loop_split_edge_with.
	(sms_schedule): Use current_loops.
	* tree-ssa-dom.c (tree_ssa_dominator_optimize): Use current_loops.
	* loop-init.c (loop_optimizer_init, loop_optimizer_finalize): Set
	current_loops.
	(rtl_loop_init, rtl_loop_done): Do not set current_loops.
	* tree-ssa-sink.c (execute_sink_code): Use current_loops.
	* ifcvt.c (if_convert): Ditto.
	* predict.c (predict_loops): Do not clear current_loops.
	(tree_estimate_probability): Use current_loops.
	(propagate_freq): Receive head of the region to propagate instead of
	loop.
	(estimate_loops_at_level): Do not use shared to_visit bitmap.
	(estimate_loops): New function.  Handle case current_loops == NULL.
	(estimate_bb_frequencies): Do not allocate tovisit.  Use
	estimate_loops.
	* tree-ssa-loop.c (current_loops): Removed.
	(tree_loop_optimizer_init): Do not return loops.
	(tree_ssa_loop_init, tree_ssa_loop_done): Do not set current_loops.
	* tree-vectorizer.c (slpeel_update_phi_nodes_for_guard1,
	slpeel_update_phi_nodes_for_guard2, slpeel_tree_peel_loop_to_edge):
	Do not update loops explicitly.
	* function.h (struct function): Add x_current_loops field.
	(current_loops): New macro.
	* tree-if-conv.c (combine_blocks): Do not update loops explicitly.
	* loop-unroll.c (split_edge_and_insert): New function.
	(unroll_loop_runtime_iterations, analyze_insns_in_loop): Do not
	use loop_split_edge_with.
	* loop-doloop.c (add_test, doloop_modify): Ditto.
	* tree-ssa-pre.c (init_pre, fini_pre): Do not set current_loops.
	* cfglayout.c (copy_bbs): Do not update loops explicitly.
	* lambda-code.c (perfect_nestify): Do not use loop_split_edge_with.
	* tree-vect-transform.c (vect_transform_loop): Do not update loops
	explicitly.
	* cfgloop.c (flow_loops_cfg_dump): Do not dump dfs_order and rc_order.
	(flow_loops_free): Do not free dfs_order and rc_order.
	(flow_loops_find): Do not set dfs_order and rc_order in loops
	structure.  Do not call loops and flow info verification.
	(add_bb_to_loop, remove_bb_from_loops): Check whether the block
	already belongs to some loop.
	* cfgloop.h (struct loops): Remove struct cfg.
	(current_loops, loop_split_edge_with): Declaration removed.
	(loop_optimizer_init, loop_optimizer_finalize): Declaration changed.
	* tree-flow.h (loop_commit_inserts, bsi_insert_on_edge_immediate_loop):
	Declaration removed.
	* Makefile.in (cfghooks.o): Add CFGLOOP_H dependency.
	* basic-block.h (split_edge_and_insert): Declare.
	* tree-cfg.c (remove_bb): Do not update loops explicitly.

From-SVN: r118931
2006-11-17 11:29:17 +00:00
Olivier Hainque
61c25908fd gimplify.c (gimplify_scalar_mode_aggregate_compare): New function.
* gimplify.c (gimplify_scalar_mode_aggregate_compare): New function.
	(gimplify_expr): Use it for tcc_comparison of operands of non BLKmode
	aggregate types.

	* tree-ssa-loop-im.c (for_each_index): Handle ARRAY_RANGE_REF as
	ARRAY_REF, so have the callback called for the low bound expression.

	* gnat.dg/scalar_mode_agg_compare_loop.adb: New test.
	* gnat.dg/scalar_mode_agg_compare.adb: New test.

From-SVN: r114963
2006-06-24 12:47:48 +00:00
Andrew MacLeod
f004ab022e re PR c++/26757 (C++ front-end producing two DECLs with the same UID)
2006-05-23  Andrew MacLeod  <amacleod@redhat.com>
	
	PR c++/26757
	* tree-ssa-loop-im.c (determine_invariantness_stmt): Use 
	add_referenced_var instead of add_referenced_tmp_var.
	* tree-complex.c (create_one_component_var): Use add_referenced_var.
	* tree-ssa-loop-manip.c (create_iv, tree_unroll_loop): Use
	add_referenced_var.
	* tree-tailcall.c (adjust_accumulator_values, adjust_return_value,
	tree_optimize_tail_calls_1): Use add_referenced_var.
	* tree-ssa-loop-ivopts.c (create_new_iv): Use add_referenced_var.
	* tree-ssa-alias.c (create_memory_tag, create_global_var, create_sft):
	Use add_referenced_var.
	* tree-if-conv.c (ifc_temp_var): Use add_referenced_var.
	* gimplify.c (force_gimple_operand): Use add_referenced_var.
	* tree-ssa-phiopt.c (conditional_replacement, abs_replacement):
	Use add_referenced_var.
	* tree-dfa.c (struct walk_state): Remove.
	(find_referenced_vars): Remove walk state and vars_found hash table.
	(make_rename_temp): Use add_referenced_var.
	(find_vars_r): Pass less parameters to add_referenced_var.
	(referenced_var_p): New.  Is var in referenced_var hash table.
	(referenced_var_insert): Assert var isn't already in hash table.
	(add_referenced_var): Don't need walk_state parameter.  Add var if it
	isn't already in the hash table.
	(add_referenced_tmp_var): Remove.
	(find_new_referenced_vars_1): Use add_referenced_var.
	* tree-ssa-pre.c (create_expression_by_pieces, 
	insert_into_preds_of_block, insert_extra_phis, realify_fake_stores):
	Use add_referenced_var.
	* tree-vect-patterns.c (vect_pattern_recog_1): Use add_referenced_var.
	* lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
	lambda_loopnest_to_gcc_loopnest, perfect_nestify): Use 
	add_referenced_var.
	* tree-vect-transform.c (vect_create_addr_base_for_vector_ref,
	vect_create_data_ref_ptr, vect_create_destination_var,
	vect_init_vector, vect_build_loop_niters, 
	vect_generate_tmps_on_preheader, vect_update_ivs_after_vectorizer,
	vect_gen_niters_for_prolog_loop, vect_create_cond_for_align_checks):
	Use add_referenced_var.
	* tree-outof-ssa.c (create_temp): Use add_referenced_var.
	* tree-flow.h (add_referenced_tmp_var): Remove prototype
	(add_referenced_var): Add prototype.
	* tree-ssa-structalias.c (get_constraint_for, 
	intra_create_variable_infos): Use add_referenced_var.

From-SVN: r114018
2006-05-23 14:07:21 +00:00
Marcin Dalecki
5ed6ace578 tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
2006-01-31  Marcin Dalecki  <martin@dalecki.de>

	* tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
	* regrename.c: Ditto.
	* tree-ssa-loop-im.c: Ditto.
	* tree-dump.c: Ditto.
	* tree-complex.c: Ditto.
	* genrecog.c: Ditto.
	* tree-ssa-threadupdate.c: Ditto.
	* tracer.c: Ditto.
	* java/class.c: Ditto.
	* java/jcf-parse.c: Ditto.
	* java/resource.c: Ditto.
	* java/except.c: Ditto.
	* java/jvspec.c: Ditto.
	* java/jcf-write.c: Ditto.
	* java/jcf-path.c: Ditto.
	* java/gjavah.c: Ditto.
	* java/zextract.c: Ditto.
	* java/jcf-io.c: Ditto.
	* java/jcf.h: Ditto.
	* java/buffer.c: Ditto.
	* java/lang.c: Ditto.
	* java/parse-scan.y: Ditto.
	* java/lex.c: Ditto.
	* java/lex.h: Ditto.
	* cfgloopmanip.c: Ditto.
	* postreload-gcse.c: Ditto.
	* tree-ssa-loop-manip.c: Ditto.
	* postreload.c: Ditto.
	* tree-ssa-loop-ch.c: Ditto.
	* loop.c: Ditto.
	* ipa-cp.c: Ditto.
	* cppspec.c: Ditto.
	* diagnostic.c: Ditto.
	* final.c: Ditto.
	* genoutput.c: Ditto.
	* gcc.c: Ditto.
	* cfghooks.c: Ditto.
	* cfgloopanal.c: Ditto.
	* objc/objc-act.c: Ditto.
	* gcov.c: Ditto.
	* genextract.c: Ditto.
	* genautomata.c: Ditto.
	* pretty-print.c: Ditto.
	* genemit.c: Ditto.
	* cgraphunit.c: Ditto.
	* flow.c: Ditto.
	* df-scan.c: Ditto.
	* haifa-sched.c: Ditto.
	* dominance.c: Ditto.
	* dbxout.c: Ditto.
	* tree-ssa-loop-ivopts.c: Ditto.
	* df-core.c: Ditto.
	* mode-switching.c: Ditto.
	* modulo-sched.c: Ditto.
	* graph.c: Ditto.
	* ipa-pure-const.c: Ditto.
	* cse.c: Ditto.
	* fix-header.c: Ditto.
	* web.c: Ditto.
	* tree-stdarg.c: Ditto.
	* ipa-utils.c: Ditto.
	* loop-init.c: Ditto.
	* ipa-inline.c: Ditto.
	* cfganal.c: Ditto.
	* global.c: Ditto.
	* alloc-pool.c: Ditto.
	* dwarf2out.c: Ditto.
	* opts.c: Ditto.
	* genattrtab.c: Ditto.
	* tree-ssa-loop-ivcanon.c: Ditto.
	* predict.c: Ditto.
	* timevar.c: Ditto.
	* lcm.c: Ditto.
	* fortran/gfortranspec.c: Ditto.
	* regmove.c: Ditto.
	* local-alloc.c: Ditto.
	* langhooks.c: Ditto.
	* function.c: Ditto.
	* tree-vectorizer.c: Ditto.
	* gcse.c: Ditto.
	* ipa-type-escape.c: Ditto.
	* alias.c: Ditto.
	* tree-if-conv.c: Ditto.
	* profile.c: Ditto.
	* ipa.c: Ditto.
	* tree-data-ref.c: Ditto.
	* loop-unroll.c: Ditto.
	* treelang/treetree.c: Ditto.
	* calls.c: Ditto.
	* bt-load.c: Ditto.
	* ggc-common.c: Ditto.
	* except.c: Ditto.
	* coverage.c: Ditto.
	* cselib.c: Ditto.
	* tree-cfgcleanup.c: Ditto.
	* tree-ssa-pre.c: Ditto.
	* cfgcleanup.c: Ditto.
	* loop-invariant.c: Ditto.
	* loop-iv.c: Ditto.
	* ipa-prop.c: Ditto.
	* print-tree.c: Ditto.
	* conflict.c: Ditto.
	* ggc-page.c: Ditto.
	* sched-deps.c: Ditto.
	* regclass.c: Ditto.
	* tree-object-size.c: Ditto.
	* combine.c: Ditto.
	* bb-reorder.c: Ditto.
	* resource.c: Ditto.
	* var-tracking.c: Ditto.
	* cfgloop.c: Ditto.
	* df-problems.c: Ditto.
	* reg-stack.c: Ditto.
	* tlink.c: Ditto.
	* gccspec.c: Ditto.
	* sched-rgn.c: Ditto.
	* tree-ssa-structalias.c: Ditto.
	* tree-ssa-reassoc.c: Ditto.
	* config/darwin-c.c: Ditto.
	* config/darwin.c: Ditto.
	* config/arm/arm.c: Ditto.
	* cfgrtl.c: Ditto.
	* collect2.c: Ditto.
	* reload1.c: Ditto.

From-SVN: r110446
2006-01-31 20:56:55 +01:00
Jeff Law
736432eedb tree-cfg.c (bsi_replace): Rename final argument from PRESERVE_EH_INFO to UPDATE_EH_INFO.
* tree-cfg.c (bsi_replace): Rename final argument from
	PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
	change (stmt -> orig_stmt).
	* tree-eh.c (verify_eh_throw_stmt_node): New function.
	(bsi_remove): Add new argument.  Remove EH information
	if requested.
	(verify_eh_throw_table_statements): New function.
	(bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
	updated.
	* tree-optimize.c (execute_free_cfg_annotations): Verify
	the EH throw statement table after removing annotations.
	* except.h (verify_eh_throw_table_statements): Prototype.
	* tree-flow.h (bsi_remove): Update prototype.
	* tree-vrp.c (remove_range_assertions): Add new argument to
	bsi_remove call.
	* tree-ssa-loop-im.c (move_computations_stmt): Likewise.
	* tree-complex.c (expand_complex_div_wide): Likewise.
	* tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
	* tree-tailcall.c (eliminate_tailcall): Likewise.
	* tree-ssa-dse.c (dse_optimize_stmt): Likewise.
	* tree-ssa-loop-ivopts.c (remove_statement): Likewise.
	* tree-nrv.c (tree_nrv): Likewise.
	* tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
	* tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
	(combine_blocks): Likewise.
	* tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
	* tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
	(cleanup_control_flow): Likewise.
	(remove_forwarder_block): Likewise.
	* tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
	* tree-sra.c (sra_replace): Likewise.
	* tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
	(forward_propagate_single_use_vars): Likewise.
	* tree-ssa-dce.c (remove_dead_stmt): Likewise.
	* tree-inline.c (expand_call_inline): Likewise.
	* tree-vect-transform.c (vect_transform_loop): Likewise.
	* tree-outof-ssa.c (rewrite_trees): Likewise.
	* tree-cfg.c (make_goto_expr_edges): Likewise.
	(cleanup_dead_labels): Likewise.
	(tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
	(bsi_move_before, bsi_move_after): Likewise.
	(bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
	(tree_redirect_edge_and_branch, tree_split_block): Likewise.

From-SVN: r109421
2006-01-06 10:50:26 -07:00
Richard Guenther
b4257cfc1f tree-ssa-loop-im.c (schedule_sm): Use buildN instead of build.
2005-12-02  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-loop-im.c (schedule_sm): Use buildN instead of build.
	* tree-complex.c (update_complex_assignment, expand_complex_div_wide):
	Likewise.
	* tree-ssa-ccp.c (maybe_fold_offset_to_array_ref,
	maybe_fold_offset_to_component_ref): Likewise.
	* tree-ssa-dom.c (thread_across_edge,
	simplify_rhs_and_lookup_avail_expr,
	find_equivalent_equality_comparison, record_equivalences_from_stmt):
	Likewise.
	* gimple-low.c (lower_function_body, lower_return_expr): Likewise.
	* tree-eh.c (do_return_redirection, honor_protect_cleanup_actions,
	lower_try_finally_switch): Likewise.
	* tree-if-conv.c (add_to_dst_predicate_list,
	replace_phi_with_cond_modify_expr, ifc_temp_var): Likewise.
	* gimplify.c (internal_get_tmp_var, gimple_build_eh_filter,
	voidify_wrapper_expr, build_stack_save_restore, gimplify_bind_expr,
	gimplify_return_expr, gimplify_decl_expr, gimplify_switch_expr,
	gimplify_case_label_expr, gimplify_exit_expr, gimplify_self_mod_expr,
	shortcut_cond_r, shortcut_cond_expr, gimplify_cond_expr,
	gimplify_init_ctor_eval, gimplify_init_constructor,
	gimplify_variable_sized_compare, gimplify_boolean_expr,
	gimplify_cleanup_point_expr, gimple_push_cleanup, gimplify_target_expr,
	gimplify_expr, gimplify_body, gimplify_function_tree,
	force_gimple_operand): Likewise.
	* tree-ssa-pre.c (create_expression_by_pieces): Likewise.
	* tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for,
	mx_register_decls): Likewise.
	* tree-nested.c (init_tmp_var, save_tmp_var, get_static_chain,
	get_frame_field, finalize_nesting_tree_1): Likewise.
	* tree-inline.c (setup_one_parameter): Likewise.
	* tree-vect-transform.c (vectorizable_condition): Likewise.
	* tree-outof-ssa.c (insert_copy_on_edge, insert_backedge_copies):
	Likewise.
	* tree-profile.c (tree_gen_edge_profiler): Likewise.
	* tree-cfg.c (factor_computed_gotos, gimplify_val): Likewise.
	* c-parser.c (c_parser_if_body, c_parser_switch_statement): Likewise.
	* tree-chrec.h (build_polynomial_chrec): Likewise.

From-SVN: r107907
2005-12-02 17:09:40 +00:00
Paolo Bonzini
e288982373 re PR tree-optimization/23546 (ICE in for_each_index, at tree-ssa-loop-im.c:202)
2005-08-24  Paolo Bonzini  <bonzini@gnu.org>

	PR tree-optimization/23546
	* tree-ssa-loop-im.c (for_each_index): Handle INTEGER_CST
	and REAL_CST nodes.

From-SVN: r103471
2005-08-25 06:40:14 +00:00
Zdenek Dvorak
d28cbb0767 tree-ssa-loop-im.c (MAX_LSM_NAME_LENGTH, [...]): New.
* tree-ssa-loop-im.c (MAX_LSM_NAME_LENGTH, lsm_tmp_name,
	lsm_tmp_name_length): New.
	(lsm_tmp_name_add, gen_lsm_tmp_name, get_lsm_tmp_name): New functions.
	(schedule_sm): Use get_lsm_tmp_name instead of "lsm_tmp".

From-SVN: r103215
2005-08-17 14:00:52 +00:00
Richard Guenther
ac264fef23 re PR tree-optimization/23109 (compiler generates wrong code leading to spurious division by zero with -funsafe-math-optimizations (instead of -ftrapping-math))
2005-08-01  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/23109
	* tree-ssa-math-opts.c (execute_cse_reciprocals_1):
	If trapping math is in effect, use post-dominator information
	to check if we'd in any case reach a trapping point before
	doing the reciprocal insertion.
	(execute_cse_reciprocals): Compute post-dominators, if necessary.
	* tree-ssa-loop-im.c (determine_invariantness_stmt): RDIV
	expressions are invariant only if trapping math is not in effect.

From-SVN: r102627
2005-08-01 08:52:59 +00:00
Daniel Berlin
a3648cfc0c [multiple changes]
2005-06-29  Daniel Berlin  <dberlin@dberlin.org>

	* tree-complex.c (complex_variable_components): Now a hashtable.
	(cvc_lookup): Ditto.
	(cvc_insert): Ditto.
	(create_components): Use referenced var iterator.
	Initialize hashtable.	Use cvc_insert/lookup.
	(extract_components): Use cvc_insert/lookup.
	(update_complex_components): Ditto.
	(update_complex_components_on_edge): Ditto.
	* tree-dfa.c (referenced_vars): Now a hashtable.
	(dump_referenced_vars): Use iterator.
	(referenced_var_lookup): New function.
	(referenced_var_insert): Ditto.
	(add_referenced_var): Use referenced_var_insert.
	(mark_new_vars_to_rename): Use DECL_UID.
	* tree-flow-inline.h (first_htab_element): New function.
	(end_htab_p): Ditto.
	(next_htab_element): Ditto.
	(first_referenced_var): Ditto.
	(end_referenced_vars_p): Ditto.
	(next_referenced_var): Ditto.
	(is_call_clobbered): Use DECL_UID.
	(mark_call_clobbered): Ditto.
	(clear_call_clobbered): Ditto.
	(mark_non_addressable): Ditto.
	* tree-flow.h (htab_iterator): New struct.
	(FOR_EACH_HTAB_ELEMENT): New macro.
	(struct int_tree_map): New struct.
	(int_tree_map_hash): Prototype.
	(int_tree_map_eq): Ditto.
	(referenced_var_iterator): Ditto.
	(FOR_EACH_REFERENCED_VAR): New macro.
	(referenced_vars): Now a hashtable.
	* tree-into-ssa.c (symbol_marked_for_renaming): Use DECL_UID.
	(add_new_name_mapping): Ditto.
	(mark_def_sites): Ditto.
	(insert_phi_nodes): Use referenced_var iterator.
	(mark_def_site_blocks): Ditto.
	(mark_sym_for_renaming): Use DECL_UID.
	* tree-sra.c (is_sra_candidate_decl): Use DECL_UID.
	(lookup_element): Ditto.
	(find_candidates_for_sra): Use referenced_vars iterator.
	Use DECL_UID.
	* tree-ssa-alias.c (NUM_REFERENCES): New macro.
	(NUM_REFERENCES_CLEAR): Ditto.
	(NUM_REFERENCES_INC): Ditto.
	(NUM_REFERENCES_SET): Ditto.
	(alias_obstack): New bitmap obstack.
	(struct alias_map_d): Use bitmap, not sbitmap.
	(struct alias_info): Remove num_references.
	(init_alias_info): Use referenced_var iterator.
	Initialize bitmap obstack.
	(delete_alias_info): Use referenced_var iterator.
	Free bitmap obstack.
	(compute_points_to_and_addr_escape): Use DECL_UID.
	Use new NUM_REFERENCES macros.
	(compute_flow_sensitive_aliasing): may_aliases is now a bitmap.
	Use new NUM_REFERENCES macros.
	(group_aliases_into): Update prototype to use bitmap.
	(setup_pointers_and_addressables): Use referenced_vars iterator.
	Use DECL_UID. Use new NUM_REFERENCES macros.
	(add_pointed_to_var): Use DECL_UID.
	(dump_alias_info): Use referenced_var iterator.
	(add_type_alias): Ditto.
	(used_portions): Now a hashtable.
	(used_part_map_eq): New function.
	(used_part_map_hash): Ditto.
	(free_used_part_map): Ditto.
	(up_lookup): Ditto.
	(up_insert): Ditto.
	(get_or_create_used_part_for): Use up_lookup.
	(create_overlap_variables_for): Ditto.
	(find_used_portions): Use up_insert.
	Use DECL_UID.
	(create_structure_vars): Init used_portions hashtable, use
	referenced_vars iterator.
	* tree-ssa-live.c (create_ssa_var_map): sbitmaps became bitmaps.
	Use DECL_UID.
	* tree-ssa-loop-im.c (gather_mem_refs_stmt): Use DECL_UID.
	* tree-ssa-operands.c (get_asm_expr_operands): Ditto.
	(note_addressable): Ditto.
	* tree-ssa-structalias.c (set_uids_in_ptset): Ditto.
	* tree-ssa.c (verify_flow_insensitive_alias_info): Use
	referenced_var iterator.
	Use DECL_UID.
	(delete_tree_ssa): Ditto.
	(int_tree_map_eq): New function.
	(int_tree_map_hash): Ditto.
	* tree-stdarg.c (find_va_list_reference): Use DECL_UID.
	(va_list_ptr_read): Ditto.
	(va_list_counter_struct_op): Ditto.
	(va_list_ptr_write): Ditto.
	(check_va_list_escapes): Ditto.
	(check_all_va_list_escapes): Ditto.
	(execute_optimize_stdarg): Ditto.
	* tree-tailcall.c (suitable_for_tail_opt_p): Used referenced_var
	iterator.
2005-06-30  Daniel Berlin  <dberlin@dberlin.org>

	* hashtab.h (HTAB_DELETED_ENTRY): New macro.
	(HTAB_EMPTY_ENTRY): New macro.

2005-06-30  Daniel Berlin  <dberlin@dberlin.org>

	* hashtab.c (EMPTY_ENTRY): Moved and renamed.
	(DELETED_ENTRY): Ditto.

From-SVN: r101480
2005-06-30 22:18:42 +00:00
Kelley Cook
366ccddb2b Update FSF address.
From-SVN: r101317
2005-06-25 02:02:01 +00:00
Andrew Pinski
33674347e5 re PR tree-optimization/22105 (ACATS ICE cxg2018 for_each_index, at tree-ssa-loop-im.c:219)
2005-06-17  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/22105
        * tree-ssa-loop-im.c (for_each_index): Handle COMPLEX_CST.

From-SVN: r101137
2005-06-17 14:33:51 -07:00
Zdenek Dvorak
ac1826887e tree-ssa-address.c: New file.
* tree-ssa-address.c: New file.
	* Makefile.in (tree-ssa-address.o): Add.
	* expr.c (expand_expr_real_1): Do not handle REF_ORIGINAL on
	INDIRECT_REFs.  Handle TARGET_MEM_REFs.
	* tree-eh.c (tree_could_trap_p): Handle TARGET_MEM_REFs.
	* tree-flow.h (struct mem_address): New.
	(struct affine_tree_combination): Moved from tree-ssa-loop-ivopts.c.
	(create_mem_ref, addr_for_mem_ref, get_address_description,
	maybe_fold_tmr, multiplier_allowed_in_address_p,
	multiply_by_cost):  Declare.
	* tree-mudflap.c (mf_xform_derefs_1): Handle TARGET_MEM_REFs.
	* tree-pretty-print.c (dump_generic_node): Ditto.
	* tree-ssa-loop-im.c (for_each_index): Ditto.
	* tree-ssa-loop-ivopts.c (may_be_unaligned_p,
	find_interesting_uses_address): Ditto.
	(rewrite_address_base, build_addr_strip_iref): Removed.
	(struct affine_tree_combination): Moved to tree-flow.h.
	(get_ref_tag, copy_ref_info): New functions.
	(rewrite_use_address): Produce TARGET_MEM_REFs.
	(tree_ssa_iv_optimize): Do not call update_ssa
	and rewrite_into_loop_closed_ssa.
	(tree_to_aff_combination): Use build_fold_addr_expr instead of
	build_addr_strip_iref.
	(unshare_aff_combination): New function.
	(fold_affine_sum): Removed.
	(get_computation_at): Use get_computation_aff.  Unshare the result.
	(get_computation_aff, multiplier_allowed_in_address_p): New function.
	(multiply_by_cost): Exported.
	(get_address_cost): Use multiplier_allowed_in_address_p.
	* tree-ssa-operands.c (get_tmr_operands): New function.
	(get_expr_operands): Handle TARGET_MEM_REFs.
	* tree.c (copy_node_stat): Copy annotations for TARGET_MEM_REFs.
	(build): Handle 7 arguments.
	(build7_stat): New function.
	* tree.def (TARGET_MEM_DEF): New.
	* tree.h (REF_ORIGINAL): Removed.
	(TMR_SYMBOL, TMR_BASE, TMR_INDEX, TMR_STEP, TMR_OFFSET, TMR_ORIGINAL,
	TMR_TAG, build7): New macros.
	(build7_stat, tree_mem_ref_addr, copy_mem_ref_info): Declare.
	* tree-ssa-ccp.c (fold_stmt_r): Call maybe_fold_tmr.
	* doc/c-tree.texi: Document TARGET_MEM_REF.
	* doc/tree-ssa.texi: Add TARGET_MEM_REF to gimple grammar.

	* gcc.dg/tree-ssa/loop-2.c: Update outcome.
	* gcc.dg/tree-ssa/loop-3.c: Update outcome.
	* gcc.dg/tree-ssa/loop-4.c: Update outcome.
	* gcc.dg/tree-ssa/loop-9.c: New test.

From-SVN: r100708
2005-06-07 12:01:47 +00:00
Dorit Nuzman
88088c0396 tree-flow.h (stmt_ann_d): Move aux to ...
* tree-flow.h (stmt_ann_d): Move aux to ...
        (tree_ann_common_d): ... here.
        * tree-ssa-loop-im.c (LIM_DATA, determine_invariantness_stmt,
        move_computations_stmt, schedule_sm): Update references to
        aux.
        * tree-vectorizer.h (set_stmt_info, vinfo_for_stmt): Likewise.
        * tree-vect-transform.c (vect_create_index_for_vector_ref): Update
        call to set_stmt_info.
        (vect_transform_loop): Likewise.
        * tree-vectorizer.c (new_loop_vec_info, destroy_loop_vec_info):
        Likewise.

        * tree-vect-analyze.c (vect_analyze_scalar_cycles): Made void instead of
        bool.
        (vect_mark_relevant): Takes two additional arguments - live_p and
        relevant_p. Set RELEVANT_P and LIVE_P according to these arguments.
        (vect_stmt_relevant_p): Differentiate between a live stmt and a
        relevant stmt. Return two values = live_p and relevant_p.
        (vect_mark_stmts_to_be_vectorized): Call vect_mark_relevant and
        vect_stmt_relevant_p with additional arguments. Phis are no longer
        put into the worklist (analyzed seperately in analyze_scalar_cycles).
        (vect_determine_vectorization_factor): Also check for LIVE_P, because a
        stmt that is marked as irrelevant and live, cause it's only used out
        side the loop, may need to be vectorized (e.g. reduction).
        (vect_analyze_operations): Examine phis. Call
        vectorizable_live_operation for for LIVE_P stmts. Check if
        need_to_vectorize.
        (vect_analyze_scalar_cycles): Update documentation. Don't fail
        vectorization - just classify the scalar cycles created by the loop
        phis. Call vect_is_simple_reduction.
        (vect_analyze_loop): Call to analyze_scalar_cycles moved earlier.
        * tree-vect-transform.c (vect_create_index_for_vector_ref): Update
        call to set_stmt_info.
        (vect_get_vec_def_for_operand): Code reorganized - the code that
        classifies the type of use was factored out to vect_is_simple_use.
        (vectorizable_store, vect_is_simple_cond): Call vect_is_simple_use with
        additional arguments.
        (vectorizable_assignment): Likewise. Also make sure the stmt is relevant
        and computes a loop_vec_def.
        (vectorizable_operation, vectorizable_load, vectorizable_condition):
        Likewise.
        (vectorizable_live_operation): New.
        (vect_transform_stmt): Handle LIVE_P stmts.
        * tree-vectorizer.c (new_stmt_vec_info): Initialize the new fields
        STMT_VINFO_LIVE_P and STMT_VINFO_DEF_TYPE.
        (new_loop_vec_info, destroy_loop_vec_info): Also handle phis.
        (vect_is_simple_use): Determine the type of the def and return it
        in a new function argument. Consider vect_reduction_def and
        vect_induction_def, but for now these are not supported.
        (vect_is_simple_reduction): New. Empty for now.
        * tree-vectorizer.h (vect_def_type): New enum type.
        (_stmt_vec_info): Added new fields - live and _stmt_vec_info.
        (STMT_VINFO_LIVE_P, STMT_VINFO_DEF_TYPE): New accessor macros.
        (vect_is_simple_use): New arguments added to function declaration.
        (vect_is_simple_reduction): New function declaration.
        (vectorizable_live_operation): New function declaration.

        * tree-vect-analyze.c (vect_can_advance_ivs_p): Add debug printout.
        (vect_can_advance_ivs_p): Likewise.
        * tree-vect-transform.c (vect_update_ivs_after_vectorizer): Likewise.

From-SVN: r100617
2005-06-05 09:54:20 +00:00
Zdenek Dvorak
60407f7a65 re PR tree-optimization/21817 (ICE in for_each_index, at tree-ssa-loop-im.c:200)
PR tree-optimization/21817
	* tree-ssa-loop-im.c (for_each_index): Handle VECTOR_CST.

From-SVN: r100410
2005-05-31 23:07:25 +00:00
Kazu Hirata
0fa2e4df47 c-common.c, [...]: Fix comment typos.
* c-common.c, c-parser.c, cfgbuild.c, cfghooks.c, cfghooks.h,
	cfgrtl.c, cgraphunit.c, ddg.c, expr.h, gcse.c, ggc-page.c,
	ggc-zone.c, gimplify.c, ipa-inline.c, longlong.h, targhooks.c,
	tree-flow-inline.h, tree-pass.h, tree-ssa-dse.c,
	tree-ssa-loop-im.c, tree-ssa-loop-ivopts.c,
	tree-ssa-operands.c, tree-vect-analyze.c,
	tree-vect-transform.c, tree-vectorizer.c, tree.c,
	config/arm/arm.c, config/bfin/bfin.c, config/frv/frv.c,
	config/frv/frv.md, config/i386/i386.c, config/i386/sse.md,
	config/m68hc11/m68hc11.c, config/m68hc11/m68hc11.h,
	config/mcore/mcore.c, config/mips/mips.c, config/mips/mips.md,
	config/rs6000/darwin-ldouble.c, config/rs6000/rs6000.c,
	config/rs6000/rs6000.h, config/sh/sh.c, config/sh/sh.md,
	config/sh/ushmedia.h, config/sparc/sparc.c,
	config/sparc/sparc.md, config/stormy16/stormy-abi: Fix comment
	typos.  Follow spelling conventions.
	* doc/invoke.texi, doc/tm.texi, doc/tree-ssa.texi: Fix typos.
	Follow spelling conventions.

From-SVN: r100218
2005-05-26 18:15:27 +00:00
Zdenek Dvorak
ed9c043b26 tree-ssa-loop-im.c (struct mem_ref): Add field "next".
* tree-ssa-loop-im.c (struct mem_ref): Add field "next".
	(struct hmr_data, hoist_memory_reference, memref_del,
	struct fmrv_data): Removed.
	(hoist_memory_references, free_mem_ref, free_mem_refs): New functions.
	(gather_mem_refs, gather_mem_refs_stmt): Add new references to the
	list.
	(find_more_ref_vops): Traverse the list of memory references.
	(determine_lsm_loop): Work with the list of memory references instead
	of traversing the hashtable.

From-SVN: r99627
2005-05-12 19:41:10 +00:00
Zdenek Dvorak
01fd257af5 tree-ssa-loop-im.c: Include hashtab.h.
* tree-ssa-loop-im.c: Include hashtab.h.
	(struct mem_ref_loc): New.
	(struct mem_ref): Describe the set of references with the same
	shape.
	(max_stmt_uid, get_stmt_uid, record_mem_ref, free_mem_refs,
	maybe_queue_var, fem_single_reachable_address,
	for_each_memref, single_reachable_address,
	is_call_clobbered_ref, determine_lsm_reg): Removed.
	(record_mem_ref_loc, free_mem_ref_locs, determine_lsm_ref,
	hoist_memory_reference, memref_hash, memref_eq, memref_del,
	gather_mem_refs_stmt, gather_mem_refs, find_more_ref_vops):
	New functions.
	(rewrite_mem_refs, schedule_sm): Use mem_ref_loc list.
	(determine_lsm_loop): Rewritten.
	(determine_lsm): Do not set stmt uids.

From-SVN: r99539
2005-05-10 20:04:27 +00:00
Kazu Hirata
bed133ea14 tree-flow.h (tree_ann_common_d): Move aux to ...
* tree-flow.h (tree_ann_common_d): Move aux to ...
	(stmt_ann_d): ... here.
	* tree-ssa-loop-im.c (LIM_DATA, determine_invariantness_stmt,
	move_computations_stmt, schedule_sm): Update references to
	aux.
	* tree-vectorizer.h (set_stmt_info, vinfo_for_stmt): Likewise.

From-SVN: r99179
2005-05-03 20:18:32 +00:00
Diego Novillo
84d658141e [multiple changes]
2005-04-22  Diego Novillo  <dnovillo@redhat.com>

	* Makefile.in (tree-into-ssa.o): Add dependency on PARAMS_H.
	* lambda-code.c (perfect_nestify): Mark virtual operands in
	the moved statement for renaming.
	* params.def (PARAM_MIN_VIRTUAL_MAPPINGS): Define.
	(PARAM_VIRTUAL_MAPPINGS_TO_SYMS_RATIO): Define.
	* params.h (MIN_VIRTUAL_MAPPINGS): Define.
	(VIRTUAL_MAPPINGS_TO_SYMS_RATIO): Define.
	* tree-flow.h (struct var_ann_d): Update comments.
	(rewrite_to_new_ssa_names_bb, rewrite_to_new_ssa_names,
	allocate_ssa_names, find_phi_node_for, dump_tree_ssa,
	debug_tree_ssa, debug_def_blocks, dump_tree_ssa_stats,
	debug_tree_ssa_stats, rewrite_ssa_into_ssa,
	dump_repl_tbl, debug_repl_tbl, dump_names_replaced_by,
	debug_names_replaced_by): Remove declarations.
	(delete_update_ssa, get_current_def, set_current_def): Declare.
	(rewrite_into_loop_closed_ssa): Add new argument.  Update
	all callers.
	* tree-into-ssa.c: Include params.h.
	(old_virtual_ssa_names): Remove.  Update all users.
	(need_to_replace_names_p): Remove.  Update all users.
	(struct update_ssa_stats_d): Declare.
	(update_ssa_stats): New local.
	(dump_tree_ssa, debug_tree_ssa, debug_def_blocks,
	dump_tree_ssa_stats, debug_tree_ssa_stats,
	dump_update_ssa, debug_update_ssa,
	dump_names_replaced_by, debug_names_replaced_by): Declare.
	(get_current_def, set current_def): Make extern.
	(is_old_name, is_new_name): Protect against references
	past the end of the sets.
	(add_new_name_mapping): Assert that OLD and NEW are
	different SSA names for the same symbol.
	When adding a virtual mapping, update stats for virtual
	mapping heuristic.
	(insert_phi_nodes_for): If UPDATE_P is true, create the
	LHS of the new PHI by duplicating SSA name VAR.
	(insert_phi_nodes_1): Remove.  Update all users.
	(insert_phi_nodes): Remove second argument.  Update all
	users.
	(maybe_replace_use, maybe_replace_def): New.
	(rewrite_update_stmt): Call them.
	(mark_def_interesting): Remove calls to is_gimple_reg.
	(prepare_phi_args_for_update): Remove.  Update all users.
	(prepare_block_for_update): Only process virtual operands
	and GIMPLE registers in normal form.
	(prepare_use_sites_for): New.
	(prepare_names_to_update): Rename from prepare_def_sites.
	Call prepare_use_sites_for.
	(dump_update_ssa): Rename from dump_repl_tbl.
	Update all users.
	Show statistics for virtual mapping heuristic.
	(debug_update_ssa): Rename from debug_debug_repl_tbl.
	(init_update_ssa): Initialize UPDATE_SSA_STATS.
	(delete_update_ssa): Make extern.
	(mark_set_for_renaming): If the set is empty, do nothing.
	(release_ssa_name_after_update_ssa): Update comment.
	(insert_updated_phi_nodes_for): Do not remove existing
	PHI nodes for symbols.
	(switch_virtuals_to_full_rewrite_p): New.
	(switch_virtuals_to_full_rewrite): New.
	(update_ssa): Call them.
	Clear REWRITE_THIS_STMT and REGISTER_DEFS_IN_THIS_STMT
	for every statement before updating.
	If all the names in NEW_SSA_NAMES have been marked for
	removal, do nothing.
	Only start at the top of the CFG if there are symbols in
	SYMS_TO_RENAME.
	(ssa_rewrite_finalize_block): Remove.
	(ssa_register_new_def): Remove.
	(ssa_rewrite_stmt): Remove.
	(ssa_rewrite_phi_arguments): Remove.
	(ssa_rewrite_initialize_block): Remove.
	(ssa_mark_def_sites): Remove.
	(ssa_mark_def_sites_initialize_block): Remove.
	(ssa_mark_phi_uses): Remove.
	(rewrite_ssa_into_ssa): Remove.
	* tree-phinodes.c (find_phi_node_for): Remove.
	* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely):
	Call update_ssa.
	* tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops):
	Remove calls to verify_dominators and
	verify_loop_structure.
	(tree_unswitch_single_loop): Call update_ssa.
	* tree-ssa.c (verify_ssa): Assert that need_ssa_update_p
	returns false.
	Call verify_stmts.
	(delete_tree_ssa): Assert that need_ssa_update_p returns
	false.
	* tree-vect-transform.c (vect_transform_loop): Call update_ssa.
	* tree-vectorizer.c (allocate_new_names, rename_def_op,
	free_new_names): Remove.  Update all users.
	(rename_use_op): Call get_current_def.
	(rename_variables_in_bb): Do not handle any real or
	virtual definition.
	(slpeel_update_phis_for_duplicate_loop): Call
	get_current_def and set_current_def instead of using
	SSA_NAME_AUX.
	(slpeel_update_phi_nodes_for_guard2): Reformat comments.
	(slpeel_can_duplicate_loop_p): Call need_ssa_update_p,
	ssa_names_to_replace and delete_update_ssa.
	* doc/invoke.texi: Document --param min-virtual-mappings
	and --param virtual-mappings-ratio.

2005-04-22  Zdenek Dvorak  <dvorakz@suse.cz>
	    Diego Novillo  <dnovillo@redhat.com>

	* tree-cfg.c (tree_duplicate_bb): Call create_new_def_for
	for newly created PHI nodes.
	Call create_new_def_for for every new V_MAY_DEF and
	V_MUST_DEF on the copied statement.
	(struct ssa_name_map_entry): Remove.
	(ssa_name_map_entry_hash): Remove.
	(ssa_name_map_entry_eq): Remove.
	(allocate_ssa_names): Remove.
	(rewrite_to_new_ssa_names_def): Remove.
	(rewrite_to_new_ssa_names_use): Remove.
	(rewrite_to_new_ssa_names_bb): Remove.
	(rewrite_to_new_ssa_names): Remove.
	(tree_duplicate_sese_region): Remove variables ver,
	definitions, phi, ssa_name_map and bi.
	Call need_ssa_update_p instead of any_marked_for_rewrite_p.
	Call update_ssa.
	* tree-ssa-dom.c (tree_ssa_dominator_optimize): Call
	update_ssa instead of rewrite_ssa_into_ssa.
	* tree-ssa-loop-manip.c (add_exit_phis_edge): Call
	create_new_def_for.
	(find_uses_to_rename_use): Add argument 'need_phis'.
	(find_uses_to_rename_stmt): Do not scan virtual operands.
	(find_uses_to_rename): Only scan PHI nodes for
	non-virtual names.
	(rewrite_into_loop_closed_ssa): Call update_ssa.
	(check_loop_closed_ssa_use): Ignore virtual operands.
	(check_loop_closed_ssa_stmt): Likewise.
	(verify_loop_closed_ssa): Do nothing if CURRENT_LOOPS is
	NULL.
	(rename_variables, set_phi_def_stmts): Remove.
	(tree_duplicate_loop_to_header_edge): Reformat comment.
	Remove variables BB, I and DEFINITIONS.
	Call need_ssa_update_p.
	Call update_ssa.
	(lv_adjust_loop_header_phi): Reformat comment.
	* tree-ssanames.c (ssa_names_to_rewrite): Remove.
	(marked_for_rewrite_p, any_marked_for_rewrite_p,
	mark_for_rewrite, unmark_all_for_rewrite,
	marked_ssa_names): Remove.  Update all users.
	(release_ssa_name): If VAR has been registered for SSA
	updating, do nothing.
	* tree-vrp.c (new_ssa_names, old_ssa_names): Remove.
	(build_assert_expr_for): Call register_new_name_mapping.
	(insert_range_assertions): Update call to update_ssa.
	* tree.h (mark_for_rewrite, unmark_all_for_rewrite,
	marked_for_rewrite_p, any_marked_for_rewrite_p,
	marked_ssa_names): Remove.

From-SVN: r98599
2005-04-22 20:59:54 -04:00
Kazu Hirata
1e6a5d3c8f tree-flow-inline.h (get_stmt_operands): Remove.
* tree-flow-inline.h (get_stmt_operands): Remove.
	* lambda-code.c, tree-ssa-loop-unswitch.c,
	tree-ssa-operands.c, tree-ssa-pre.c, tree-ssa-propagate.c,
	tree-ssa-sink.c, tree-ssa.c, tree-tailcall.c,
	tree-vect-transform.c, tree-vectorizer.c, tree-vrp.c): Remove
	calls to get_stmt_operands.
	* doc/tree-ssa.texi: Don't mention get_stmt_operands.

From-SVN: r98262
2005-04-17 06:42:03 +00:00
David Edelsohn
37cca40554 tree-ssa-loop-im.c: Include real.h.
* tree-ssa-loop-im.c: Include real.h.
        (determine_invariantness_stmt): If real division divisor is
        invariant and flag_unsafe_math_optimizations enabled, generate
        invariant reciprocal for hoisting.
        * Makefile.in (tree-ssa-loop-im.o): Add real.h dependency.

From-SVN: r97983
2005-04-11 16:17:38 -04:00
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
David Edelsohn
b4852851d4 tree-ssa-loop-im.c (stmt_cost): Add RDIV_EXPR to list of expensive operations.
* tree-ssa-loop-im.c (stmt_cost): Add RDIV_EXPR to list of
	expensive operations.

From-SVN: r97330
2005-03-31 11:01:53 -05:00
Daniel Berlin
013cc86f9a re PR tree-optimization/20542 (Bootstrap failure at -Os)
2005-03-18  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR tree-optimization/20542

	* tree-flow-inline.h (overlap_subvar): Move to here.
	* tree-ssa-operands.c: From here.
	* tree-flow.h (overlap_subvar): Declare.
	* tree-ssa-alias.c (add_pointed_to_var): Use overlap_subvar here.
	* tree-ssa-loop-im.c (is_call_clobbered_ref): Return proper answer
	for variables with subvars.

From-SVN: r96829
2005-03-21 19:27:00 +00:00
Zdenek Dvorak
c5cbcccf90 basic-block.h (single_succ_p, [...]): New inline functions.
* basic-block.h (single_succ_p, single_pred_p, single_succ_edge,
	single_pred_edge, single_succ, single_pred): New inline functions.
	* bb-reorder.c (rotate_loop, find_traces_1_round,
	add_labels_and_missing_jumps, fix_up_fall_thru_edges,
	duplicate_computed_gotos): Use the single_succ/pred functions.
	* cfganal.c (forwarder_block_p): Ditto.
	* cfgbuild.c (compute_outgoing_frequencies): Ditto.
	* cfgcleanup.c (try_simplify_condjump, try_forward_edges,
	outgoing_edges_match, try_crossjump_to_edge, try_optimize_cfg,
	merge_seq_blocks): Ditto.
	* cfghooks.c (split_edge, tidy_fallthru_edges): Ditto.
	* cfglayout.c (fixup_reorder_chain): Ditto.
	* cfgloop.c (mark_single_exit_loops, update_latch_info,
	canonicalize_loop_headers, verify_loop_structure): Ditto.
	* cfgloopmanip.c (remove_path, unloop, loop_delete_branch_edge,
	mfb_update_loops, create_preheader, force_single_succ_latches,
	create_loop_notes): Ditto.
	* cfgrtl.c (rtl_can_merge_blocks, try_redirect_by_replacing_jump,
	force_nonfallthru_and_redirect, rtl_tidy_fallthru_edge,
	commit_one_edge_insertion, purge_dead_edges,
	cfg_layout_can_merge_blocks_p): Ditto.
	* except.c (sjlj_emit_function_enter): Ditto.
	* flow.c (init_propagate_block_info): Ditto.
	* function.c (thread_prologue_and_epilogue_insns): Ditto.
	* gcse.c (find_implicit_sets, bypass_conditional_jumps,
	insert_insn_end_bb): Ditto.
	* ifcvt.c (merge_if_block, find_if_block, find_if_case_1,
	find_if_case_2): Ditto.
	* lambda-code.c (perfect_nestify): Ditto.
	* lcm.c (optimize_mode_switching): Ditto.
	* loop-doloop.c (doloop_modify): Ditto.
	* loop-init.c (loop_optimizer_init): Ditto.
	* loop-iv.c (simplify_using_initial_values): Ditto.
	* loop-unroll.c (unroll_loop_runtime_iterations): Ditto.
	* loop-unswitch.c (unswitch_loop): Ditto.
	* modulo-sched.c (generate_prolog_epilog): Ditto.
	* predict.c (combine_predictions_for_insn, estimate_probability,
	tree_estimate_probability, last_basic_block_p,
	estimate_bb_frequencies): Ditto.
	* profile.c (branch_prob): Ditto.
	* regrename.c (copyprop_hardreg_forward): Ditto.
	* sched-rgn.c (is_cfg_nonregular, find_rgns, update_live): Ditto.
	* tracer.c (layout_superblocks): Ditto.
	* tree-cfg.c (tree_can_merge_blocks_p, tree_merge_blocks,
	cfg_remove_useless_stmts_bb, cleanup_control_flow,
	cleanup_control_expr_graph, disband_implicit_edges,
	tree_find_edge_insert_loc, bsi_commit_edge_inserts,
	tree_verify_flow_info, tree_make_forwarder_block,
	tree_forwarder_block_p, remove_forwarder_block,
	remove_forwarder_block_with_phi, merge_phi_nodes): Ditto.
	* tree-if-conv.c (tree_if_conversion): Ditto.
	* tree-mudflap.c (mf_build_check_statement_for): Ditto.
	* tree-ssa-dce.c (remove_dead_stmt): Ditto.
	* tree-ssa-dom.c (dom_opt_finalize_block): Ditto.
	* tree-ssa-loop-ch.c (should_duplicate_loop_header_p,
	copy_loop_headers): Ditto.
	* tree-ssa-loop-im.c (loop_commit_inserts): Ditto.
	* tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Ditto.
	* tree-ssa-loop-manip.c (split_loop_exit_edge, ip_normal_pos,
	lv_adjust_loop_entry_edge, tree_ssa_loop_version): Ditto.
	* tree-ssa-loop-niter.c (simplify_using_initial_conditions): Ditto.
	* tree-ssa-loop-unswitch.c (simplify_using_entry_checks): Ditto.
	* tree-ssa-phiopt.c (tree_ssa_phiopt, value_replacement): Ditto.
	* tree-ssa-pre.c (compute_antic_aux, insert_aux, init_pre): Ditto.
	* tree-ssa-threadupdate.c (redirect_edges): Ditto.
	* tree-tailcall.c (independent_of_stmt_p, find_tail_calls,
	eliminate_tail_call, tree_optimize_tail_calls_1): Ditto.
	* tree-vect-analyze.c (vect_analyze_loop_form): Ditto.
	* tree-vect-transform.c (vect_update_ivs_after_vectorizer): Ditto.
	* tree-vectorizer.c (slpeel_update_phi_nodes_for_guard,
	slpeel_add_loop_guard): Ditto.

From-SVN: r96292
2005-03-11 09:05:12 +00:00
Zdenek Dvorak
2b27100224 Makefile.in (tree-optimize.o): Add CFGLOOP_H dependence.
* Makefile.in (tree-optimize.o): Add CFGLOOP_H dependence.
	* cfgloop.c (flow_loop_nodes_find): Export.
	* cfgloop.h (flow_loop_nodes_find, fix_loop_structure):
	Declare.
	* cfgloopmanip.c (fix_loop_structure): New function.
	* predict.c (predict_loops): Clean up the loops information.
	* tree-cfg.c (cleanup_tree_cfg_loop): New function.
	(tree_can_merge_blocks_p, remove_bb, tree_forwarder_block_p): Respect
	loop structure.
	* tree-flow.h (cleanup_tree_cfg_loop): Declare.
	(rewrite_into_loop_closed_ssa): Declaration changed.
	* tree-loop-linear.c (linear_transform_loops): Add argument to
	rewrite_into_loop_closed_ssa call.
	* tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
	* tree-ssa-loop-im.c (move_computations): Ditto.
	* tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
	* tree-vectorizer.c (vectorize_loops): Ditto.
	* tree-optimize.c: Include cfgloop.h.
	(execute_todo): Choose whether to call cleanup_tree_cfg or
	cleanup_tree_cfg_loop.
	* tree-ssa-loop-ivcanon.c (canonicalize_loop_induction_variables,
	(tree_unroll_loops_completely): Enable cleanup_tree_cfg_loop call.
	* tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Enable
	cleanup_tree_cfg_loop call.
	* tree-ssa-loop-manip.c (find_uses_to_rename_bb): New function.
	(find_uses_to_rename, rewrite_into_loop_closed_ssa): Support
	work on part of cfg.

From-SVN: r96232
2005-03-10 08:55:57 +00:00
Kazu Hirata
e2b8bd6cd8 * tree-ssa-loop-im.c (lhs): Remove.
From-SVN: r96189
2005-03-09 11:37:51 +00:00
Zdenek Dvorak
f10a665465 re PR tree-optimization/19828 (LIM is pulling out a pure function even though there is something which can modify global memory)
PR tree-optimization/19828
	* tree-ssa-loop-im.c: Add a TODO comment.
	(movement_possibility): Return MOVE_PRESERVE_EXECUTION for calls
	without side-effects.

	* gcc.dg/tree-ssa/loop-7.c: New test.
	* gcc.c-torture/execute/20050218-1.c: New test.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r95275
2005-02-19 10:26:09 +01:00
Kazu Hirata
e42febca21 params.def, [...]: Update copyright.
* params.def, params.h, predict.c, tree-ssa-loop-im.c: Update
	copyright.

From-SVN: r93961
2005-01-20 12:45:13 +00:00
Eric Botcazou
8c96cd51c7 calls.c (expand_call): Check DECL_BUILT_IN_CLASS before accessing DECL_FUNCTION_CODE.
* calls.c (expand_call): Check DECL_BUILT_IN_CLASS before
	accessing DECL_FUNCTION_CODE.
	* dojump.c (do_jump): Likewise.
	* gimplify.c (gimplify_call_expr): Likewise.
	* predict.c (expr_expected_value): Likewise.
	(strip_builtin_expect): Likewise.
	* tree-inline.c (estimate_num_insns_1): Likewise.
	* tree-ssa-loop-im.c (stmt_cost): Likewise
	* fold-const.c (fold): Test for BUILT_IN_NORMAL.
	(tree_expr_nonnegative_p): Likewise.

From-SVN: r93864
2005-01-18 23:06:59 +00:00
Daniel Berlin
d16464bb8b tree-ssa-loop-ch.c (copy_loop_headers): Loop can be null.
2004-12-13  Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-loop-ch.c (copy_loop_headers): Loop can be null.
	* tree-ssa-loop-im.c (determine_lsm): tree_root may not have a real
	inner loop.

From-SVN: r92048
2004-12-12 15:52:33 +00:00
Kazu Hirata
54e4aedb7e c-common.c, [...]: Replace uses of first_rtl_op with TREE_CODE_LENGTH.
gcc/
	* c-common.c, expr.c, fold-const.c, print-tree.c,
	tree-gimple.c, tree-inline.c, tree-pretty-print.c,
	tree-ssa-loop-im.c, tree-ssa-loop-ivopts.c: Replace uses of
	first_rtl_op with TREE_CODE_LENGTH.
	* tree.c (first_rtl_op): Remove.
	Replace uses of first_rtl_op with TREE_CODE_LENGTH.
	* tree.h: Remove the prototype for first_rtl_op.

gcc/cp/
	* pt.c: Replace a use of first_rtl_op with TREE_CODE_LENGTH.

From-SVN: r91818
2004-12-07 21:23:10 +00:00
Kazu Hirata
8e731e4e6c tree-cfg.c (bsi_commit_edge_inserts): Remove an argument.
* tree-cfg.c (bsi_commit_edge_inserts): Remove an argument.
	(tree_flow_call_edges_add): Update the call to
	bsi_commit_edge_inserts.
	* lambda-code.c (lambda_loopnest_to_gcc_loopnest): Likewise.
	* profile.c (branch_prob): Likewise.
	* tree-mudflap.c (mf_decl_cache_locals): Likewise.
	* tree-sra.c (scalarize_function): Likewise.
	* tree-ssa-loop-im.c (loop_commit_inserts): Likewise.
	* tree-ssa-pre.c (fini_pre): Likewise.
	* tree-flow.h: Update the prototype for
	bsi_commit_edge_inserts.

From-SVN: r90704
2004-11-16 00:08:04 +00:00
Zdenek Dvorak
9beeb4ee4c re PR tree-optimization/18431 (Code for arrays and pointers are not the same)
PR tree-optimization/18431
	* tree-flow.h (stmt_references_memory_p): Declare.
	* tree-ssa-loop-im.c (stmt_cost): Use stmt_references_memory_p.
	* tree-ssa.c (stmt_references_memory_p): New function.

From-SVN: r90624
2004-11-14 18:04:25 +00:00
Kazu Hirata
bb29d95124 tree-cfg.c, [...]: Replace TREE_CHAIN with PHI_CHAIN where appropriate.
* tree-cfg.c, tree-if-conv.c, tree-into-ssa.c,
	tree-scalar-evolution.c, tree-ssa-loop-im.c,
	tree-ssa-loop-ivopts.c, tree-ssa-loop-manip.c, tree-ssa.c,
	tree-vectorizer.c: Replace TREE_CHAIN with PHI_CHAIN where
	appropriate.

From-SVN: r90262
2004-11-08 13:54:41 +00:00
Nathan Sidwell
eb59b8de04 bitmap.h (bitmap_empty_p): New.
* bitmap.h (bitmap_empty_p): New.
	(bitmap_and, bitmap_and_into, bitmap_and_compl,
	bitmap_and_compl_into, bitmap_ior, bitmap_ior_into,
	bitmap_ior_compl, bitmap_xor, bitmap_xor_into): New bitmap
	operation macros.
	(bitmap_ior_and_compl): Rename to ...
	(bitmap_ior_and_compl_into): ... here.
	* bitmap.c (bitmap_equal_p): Use bitmap_xor.
	(bitmap_ior_and_compl): Rename to ...
	(bitmap_ior_and_compl_into): ... here. Adjust. Return changed
	flag.
	(bitmap_union_of_diff): Use renamed bitmap functions.
	* basic-block.h (AND_REG_SET, AND_COMPL_REG_SET, IOR_REG_SET,
	XOR_REG_SET, IOR_AND_COMPL_REG_SET): Likewise.
	* cfgrtl.c (safe_insert_insn_on_edge): Likewise.
	* df.c (df_bb_rd_local_compute)
	* flow.c (calculate_global_regs_live,
	init_propagate_block_info): Likewise.
	* ifcvt.c (find_if_case_1, find_if_case_2,
	dead_or_predicable): Likewise.
	* ra-build.c (union_web_part_roots, livethrough_conflicts_bb,
	reset_conflicts, conflicts_between_webs): Likewise.
	* ra-rewrite.c (reloads_to_loads, rewrite_program2,
	detect_web_parts_to_rebuild): Likewise.
	* sched-ebb.c (compute_jump_reg_dependencies): Likewise.
	* tree-int-ssa.c (insert_phi_nodes_for, rewrite_into_ssa): Likewise.
	* tree-sra.c (decide_instantiations): Likewise.
	* tree-ssa-alias.c (create_name_tags,
	merge_pointed_to_info): Likewise.
	* tree-ssa-dom.c (tree_ssa_dominator_optimize): Likewise.
	* tree-ssa-loop-im.c (move_computations): Likewise.
	* tree-ssa-operands.c (get_call_expr_operands): Likewise.
	* tree-ssa-pre.c (fini_pre): Likewise.
	* tree-ssa.c (verify_flow_sensitive_alias_info): Likewise.
	* tree-ssanames.c (any_marked_for_rewrite_p): Likewise.
	* tree-vectorizer.c (vectorize_loops): Likewise.

From-SVN: r89827
2004-10-29 08:41:10 +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
Daniel Berlin
1b096a0a0a tree.h (INDIRECT_REF_P): New macro.
2004-09-29  Daniel Berlin  <dberlin@dberlin.org>

	* tree.h (INDIRECT_REF_P): New macro.
	* alias.c (get_alias_set): Use it
	(nonoverlapping_memrefs_p): Ditto.
	* emit-rtl.c (mem_expr_equal_p): Ditto.
	(set_mem_attributes_minus_bitpos): Ditto.
	(is_gimple_addressable): Ditto.
	(get_base_address): Ditto.
	* tree-ssa-alias.c (find_ptr_derefernece): Ditto.
	* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Ditto.
	* tree-ssa-dom.c (record_equivalences_from_stmt): Ditto.
	* tree-ssa-loop-im.c (is_call_clobbered_ref): Ditto.
	* tree-ssa-loop-ivopts.c (find_interesting_uses_address): Ditto.
	(add_address_candidates): Ditto.
	(rewrite_address_base): Ditto.

From-SVN: r88309
2004-09-29 23:08:32 +00:00
Diego Novillo
ee1f0fb06c tree-ssa-loop-im.c (single_reachable_address): Skip constant arguments.
* tree-ssa-loop-im.c (single_reachable_address) <PHI_NODE>:
	Skip constant arguments.

From-SVN: r88237
2004-09-28 13:29:32 -04:00
Ben Elliston
628f6a4e7c backport: basic-block.h: Include vec.h, errors.h.
2004-09-24  Ben Elliston  <bje@au.ibm.com>
	    Steven Bosscher  <stevenb@suse.de>
	    Andrew Pinski  <pinskia@physics.uc.edu>

	Merge from edge-vector-branch:
	* basic-block.h: Include vec.h, errors.h. Instantiate a VEC(edge).
	(struct edge_def): Remove pred_next, succ_next members.
	(struct basic_block_def): Remove pred, succ members.  Add preds
	and succs members of type VEC(edge).
	(FALLTHRU_EDGE): Redefine using EDGE_SUCC.
	(BRANCH_EDGE): Likewise.
	(EDGE_CRITICAL_P): Redefine using EDGE_COUNT.
	(EDGE_COUNT, EDGE_I, EDGE_PRED, EDGE_SUCC): New.
	(edge_iterator): New.
	(ei_start, ei_last, ei_end_p, ei_one_before_end_p): New.
	(ei_next, ei_prev, ei_edge, ei_safe_edge): Likewise.
	(FOR_EACH_EDGE): New.
	* bb-reorder.c (find_traces): Use FOR_EACH_EDGE and EDGE_* macros
	where applicable.
	(rotate_loop): Likewise.
	(find_traces_1_route): Likewise.
	(bb_to_key): Likewise.
	(connect_traces): Likewise.
	(copy_bb_p): Likewise.
	(find_rarely_executed_basic_blocks_and_crossing_edges): Likewise.
	(add_labels_and_missing_jumps): Likewise.
	(fix_up_fall_thru_edges): Likewise.
	(find_jump_block): Likewise.
	(fix_crossing_conditional_branches): Likewise.
	(fix_crossing_unconditional_branches): Likewise.
	(add_reg_crossing_jump_notes): Likewise.
	* bt-load.c (augment_live_range): Likewise.
	* cfg.c (clear_edges): Likewise.
	(unchecked_make_edge): Likewise.
	(cached_make_edge): Likewise.
	(make_single_succ_edge): Likewise.
	(remove_edge): Likewise.
	(redirect_edge_succ_nodup): Likewise.
	(check_bb_profile): Likewise.
	(dump_flow_info): Likewise.
	(alloc_aux_for_edges): Likewise.
	(clear_aux_for_edges): Likewise.
	(dump_cfg_bb_info): Likewise.
	* cfganal.c (forwarder_block_p): Likewise.
	(can_fallthru): Likewise.
	(could_fall_through): Likewise.
	(mark_dfs_back_edges): Likewise.
	(set_edge_can_fallthru_flag): Likewise.
	(find_unreachable_blocks): Likewise.
	(create_edge_list): Likewise.
	(verify_edge_list): Likewise.
	(add_noreturn_fake_exit_edges): Likewise.
	(connect_infinite_loops_to_exit): Likewise.
	(flow_reverse_top_sort_order_compute): Likewise.
	(flow_depth_first_order_compute): Likewise.
	(flow_preorder_transversal_compute): Likewise.
	(flow_dfs_compute_reverse_execute): Likewise.
	(dfs_enumerate_from): Likewise.
	(compute_dominance_frontiers_1): Likewise.
	* cfgbuild.c (make_edges): Likewise.
	(compute_outgoing_frequencies): Likewise.
	(find_many_sub_basic_blocks): Likewise.
	(find_sub_basic_blocks): Likewise.
	* cfgcleanup.c (try_simplify_condjump): Likewise.
	(thread_jump): Likewise.
	(try_forward_edges): Likewise.
	(merge_blocks_move): Likewise.
	(outgoing_edges_match): Likewise.
	(try_crossjump_to_edge): Likewise.
	(try_crossjump_bb): Likewise.
	(try_optimize_cfg): Likewise.
	(merge_seq_blocks): Likewise.
	* cfgexpand.c (expand_gimple_tailcall): Likewise.
	(expand_gimple_basic_block): Likewise.
	(construct_init_block): Likewise.
	(construct_exit_block): Likewise.
	* cfghooks.c (verify_flow_info): Likewise.
	(dump_bb): Likewise.
	(delete_basic_block): Likewise.
	(split_edge): Likewise.
	(merge_blocks): Likewise.
	(make_forwarder_block): Likewise.
	(tidy_fallthru_edges): Likewise.
	(can_duplicate_block_p): Likewise.
	(duplicate_block): Likewise.
	* cfglayout.c (fixup_reorder_chain): Likewise.
	(fixup_fallthru_exit_predecessor): Likewise.
	(can_copy_bbs_p): Likewise.
	(copy_bbs): Likewise.
	* cfgloop.c (flow_loops_cfg_dump): Likewise.
	(flow_loop_entry_edges_find): Likewise.
	(flow_loop_exit_edges_find): Likewise.
	(flow_loop_nodes_find): Likewise.
	(mark_single_exit_loops): Likewise.
	(flow_loop_pre_header_scan): Likewise.
	(flow_loop_pre_header_find): Likewise.
	(update_latch_info): Likewise.
	(canonicalize_loop_headers): Likewise.
	(flow_loops_find): Likewise.
	(get_loop_body_in_bfs_order): Likewise.
	(get_loop_exit_edges): Likewise.
	(num_loop_branches): Likewise.
	(verify_loop_structure): Likewise.
	(loop_latch_edge): Likewise.
	(loop_preheader_edge): Likewise.
	* cfgloopanal.c (mark_irreducible_loops): Likewise.
	(expected_loop_iterations): Likewise.
	* cfgloopmanip.c (remove_bbs): Likewise.
	(fix_bb_placement): Likewise.
	(fix_irreducible_loops): Likewise.
	(remove_path): Likewise.
	(scale_bbs_frequencies): Likewise.
	(loopify): Likewise.
	(unloop): Likewise.
	(fix_loop_placement): Likewise.
	(loop_delete_branch_edge): Likewise.
	(duplicate_loop_to_header_edge): Likewise.
	(mfb_keep_just): Likewise.
	(create_preheader): Likewise.
	(force_single_succ_latches): Likewise.
	(loop_split_edge_with): Likewise.
	(create_loop_notes): Likewise.
	* cfgrtl.c (rtl_split_block): Likewise.
	(rtl_merge_blocks): Likewise.
	(rtl_can_merge_blocks): Likewise.
	(try_redirect_by_replacing_jump): Likewise.
	(force_nonfallthru_and_redirect): Likewise.
	(rtl_tidy_fallthru_edge): Likewise.
	(commit_one_edge_insertion): Likewise.
	(commit_edge_insertions): Likewise.
	(commit_edge_insertions_watch_calls): Likewise.
	(rtl_verify_flow_info_1): Likewise.
	(rtl_verify_flow_info): Likewise.
	(purge_dead_edges): Likewise.
	(cfg_layout_redirect_edge_and_branch): Likewise.
	(cfg_layout_can_merge_blocks_p): Likewise.
	(rtl_flow_call_edges_add): Likewise.
	* cse.c (cse_cc_succs): Likewise.
	* df.c (hybrid_search): Likewise.
	* dominance.c (calc_dfs_tree_nonrec): Likewise.
	(calc_dfs_tree): Likewise.
	(calc_idoms): Likewise.
	(recount_dominator): Likewise.
	* domwalk.c (walk_dominator_tree): Likewise.
	* except.c (emit_to_new_bb_before): Likewise.
	(connect_post_landing_pads): Likewise.
	(sjlj_emit_function_enter): Likewise.
	(sjlj_emit_function_exit): Likewise.
	(finish_eh_generation): Likewise.
	* final.c (compute_alignments): Likewise.
	* flow.c (calculate_global_regs_live): Likewise.
	(initialize_uninitialized_subregs): Likewise.
	(init_propagate_block_info): Likewise.
	* function.c (thread_prologue_and_epilogue_insns): Likewise.
	* gcse.c (find_implicit_sets): Likewise.
	(bypass_block): Likewise.
	(bypass_conditional_jumps): Likewise.
	(compute_pre_data): Likewise.
	(insert_insn_end_bb): Likewise.
	(insert_store): Likewise.
	(remove_reachable_equiv_notes): Likewise.
	* global.c (global_conflicts): Likewise.
	(calculate_reg_pav): Likewise.
	* graph.c (print_rtl_graph_with_bb): Likewise.
	* ifcvt.c (mark_loop_exit_edges): Likewise.
	(merge_if_block): Likewise.
	(find_if_header): Likewise.
	(block_jumps_and_fallthru_p): Likewise.
	(find_if_block): Likewise.
	(find_cond_trap): Likewise.
	(block_has_only_trap): Likewise.
	(find_if_case1): Likewise.
	(find_if_case_2): Likewise.
	* lambda-code.c (lambda_loopnest_to_gcc_loopnest): Likewise.
	(perfect_nestify): Likewise.
	* lcm.c (compute_antinout_edge): Likewise.
	(compute_laterin): Likewise.
	(compute_available): Likewise.
	(compute_nearerout): Likewise.
	* loop-doloop.c (doloop_modify): Likewise.
	* loop-init.c (loop_optimizer_init): Likewise.
	* loop-invariant.c (find_exits): Likewise.
	* loop-iv.c (simplify_using_initial_values): Likewise.
	(check_simple_exit): Likewise.
	(find_simple_exit): Likewise.
	* loop-unroll.c (peel_loop_completely): Likewise.
	(unroll_loop_constant_iterations): Likewise.
	(unroll_loop_runtime_iterations): Likewise.
	* loop-unswitch.c (may_unswitch_on): Likewise.
	(unswitch_loop): Likewise.
	* modulo-sched.c (generate_prolog_epilog): Likewise.
	(sms_schedule): Likewise.
	* postreload-gcse.c (eliminate_partially_redundant_load):
	Likewise.
	* predict.c (can_predict_insn_p): Likewise.
	(set_even_probabilities): Likewise.
	(combine_predictions_for_bb): Likewise.
	(predict_loops): Likewise.
	(estimate_probability): Likewise.
	(tree_predict_by_opcode): Likewise.
	(tree_estimate_probability): Likewise.
	(last_basic_block_p): Likewise.
	(propagate_freq): Likewise.
	(estimate_loops_at_level): Likewise.
	(estimate_bb_frequencies): Likewise.
	* profile.c (instrument_edges): Likewise.
	(get_exec_counts): Likewise.
	(compute_branch_probabilities): Likewise.
	(branch_prob): Likewise.
	* ra-build.c (live_in): Likewise.
	* ra-rewrite.c (rewrite_program2): Likewise.
	* ra.c (reg_alloc): Likewise.
	* reg-stack.c (reg_to_stack): Likewise.
	(convert_regs_entry): Likewise.
	(compensate_edge): Likewise.
	(convert_regs_1): Likewise,
	(convert_regs_2): Likewise.
	(convert_regs): Likewise.
	* regrename.c (copyprop_hardreg_forward): Likewise.
	* reload1.c (fixup_abnormal_edges): Likewise.
	* sbitmap.c (sbitmap_intersection_of_succs): Likewise.
	(sbitmap_insersection_of_preds): Likewise.
	(sbitmap_union_of_succs): Likewise.
	(sbitmap_union_of_preds): Likewise.
	* sched-ebb.c (compute_jump_reg_dependencies): Likewise.
	(fix_basic_block_boundaries): Likewise.
	(sched_ebbs): Likewise.
	* sched-rgn.c (build_control_flow): Likewise.
	(find_rgns): Likewise.
	* tracer.c (find_best_successor): Likewise.
	(find_best_predecessor): Likewise.
	(tail_duplicate): Likewise.
	* tree-cfg.c (make_edges): Likewise.
	(make_ctrl_stmt_edges): Likewise.
	(make_goto_expr_edges): Likewise.
	(tree_can_merge_blocks_p): Likewise.
	(tree_merge_blocks): Likewise.
	(cfg_remove_useless_stmts_bb): Likewise.
	(remove_phi_nodes_and_edges_for_unreachable_block): Likewise.
	(tree_block_forwards_to): Likewise.
	(cleanup_control_expr_graph): Likewise.
	(find_taken_edge): Likewise.
	(dump_cfg_stats): Likewise.
	(tree_cfg2vcg): Likewise.
	(disband_implicit_edges): Likewise.
	(tree_find_edge_insert_loc): Likewise.
	(bsi_commit_edge_inserts): Likewise.
	(tree_split_edge): Likewise.
	(tree_verify_flow_info): Likewise.
	(tree_make_forwarder_block): Likewise.
	(tree_forwarder_block_p): Likewise.
	(thread_jumps): Likewise.
	(tree_try_redirect_by_replacing_jump): Likewise.
	(tree_split_block): Likewise.
	(add_phi_args_after_copy_bb): Likewise.
	(rewrite_to_new_ssa_names_bb): Likewise.
	(dump_function_to_file): Likewise.
	(print_pred_bbs): Likewise.
	(print_loop): Likewise.
	(tree_flow_call_edges_add): Likewise.
	(split_critical_edges): Likewise.
	(execute_warn_function_return): Likewise.
	(extract_true_false_edges_from_block): Likewise.
	* tree-if-conv.c (tree_if_conversion): Likewise.
	(if_convertable_bb_p): Likewise.
	(find_phi_replacement_condition): Likewise.
	(combine_blocks): Likewise.
	* tree-into-ssa.c (compute_global_livein): Likewise.
	(ssa_mark_phi_uses): Likewise.
	(ssa_rewrite_initialize_block): Likewise.
	(rewrite_add_phi_arguments): Likewise.
	(ssa_rewrite_phi_arguments): Likewise.
	(insert_phi_nodes_for): Likewise.
	(rewrite_into_ssa): Likewise.
	(rewrite_ssa_into_ssa): Likewise.
	* tree-mudflap.c (mf_build_check_statement_for): Likewise.
	* tree-outof-ssa.c (coalesce_abnormal_edges): Likewise.
	(rewrite_trees): Likewise.
	* tree-pretty-print.c (dump_bb_header): Likewise.
	(dump_implicit_edges): Likewise.
	* tree-sra.c (insert_edge_copies): Likewise.
	(find_obviously_necessary_stmts): Likewise.
	(remove_data_stmt): Likewise.
	* tree-ssa-dom.c (thread_across_edge): Likewise.
	(dom_opt_finalize_block): Likewise.
	(single_incoming_edge_ignoring_loop_edges): Likewise.
	(record_equivalences_from_incoming_edges): Likewise.
	(cprop_into_successor_phis): Likewise.
	* tree-ssa-live.c (live_worklist): Likewise.
	(calculate_live_on_entry): Likewise.
	(calculate_live_on_exit): Likewise.
	* tree-ssa-loop-ch.c (should_duplicate_loop_header_p): Likewise.
	(copy_loop_headers): Likewise.
	* tree-ssa-loop-im.c (loop_commit_inserts): Likewise.
	(fill_always_executed_in): Likewise.
	* tree-ssa-loop-ivcanon.c (create_canonical_iv): Likewise.
	* tree-ssa-loop-ivopts.c (find_interesting_uses): Likewise.
	(compute_phi_arg_on_exit): Likewise.
	* tree-ssa-loop-manip.c (add_exit_phis_edge): Likewise.
	(get_loops_exit): Likewise.
	(split_loop_exit_edge): Likewise.
	(ip_normal_pos): Likewise.
	* tree-ssa-loop-niter.c (simplify_using_initial_conditions):
	Likewise.
	* tree-ssa-phiopt.c (candidate_bb_for_phi_optimization): Likewise.
	(replace_phi_with_stmt): Likewise.
	(value_replacement): Likewise.
	* tree-ssa-pre.c (compute_antic_aux): Likewise.
	(insert_aux): Likewise.
	(init_pre): Likewise.
	* tree-ssa-propagate.c (simulate_stmt): Likewise.
	(simulate_block): Likewise.
	(ssa_prop_init): Likewise.
	* tree-ssa-threadupdate.c (thread_block): Likewise.
	(create_block_for_threading): Likewise.
	(remove_last_stmt_and_useless_edges): Likewise.
	* tree-ssa.c (verify_phi_args): Likewise.
	(verify_ssa): Likewise.
	* tree_tailcall.c (independent_of_stmt_p): Likewise.
	(find_tail_calls): Likewise.
	(eliminate_tail_call): Likewise.
	(tree_optimize_tail_calls_1): Likewise.
	* tree-vectorizer.c (vect_transform_loop): Likewise.
	* var-tracking.c (prologue_stack_adjust): Likewise.
	(vt_stack_adjustments): Likewise.
	(vt_find_locations): Likewise.
	* config/frv/frv.c (frv_ifcvt_modify_tests): Likewise.
	* config/i386/i386.c (ix86_pad_returns): Likewise.
	* config/ia64/ia64.c (ia64_expand_prologue): Likewise.
	* config/rs6000/rs6000.c (rs6000_emit_prologue): Likewise.

Co-Authored-By: Andrew Pinski <pinskia@physics.uc.edu>
Co-Authored-By: Steven Bosscher <stevenb@suse.de>

From-SVN: r88222
2004-09-28 17:59:54 +10:00
Zdenek Dvorak
be35cf60c4 re PR tree-optimization/17591 (Ada bootstrap SEGV in stage2 on osint.adb, no SEGV when -fno-ivopts)
PR bootstrap/17591
	* tree-ssa-loop-im.c (for_each_index): Call callback for component_refs
	with varying offset.
	* tree-ssa-loop-ivopts.c (abnormal_ssa_name_p): New function.
	(idx_contains_abnormal_ssa_name_p): Scan step and lower bound for
	ARRAY_REFS.
	(expr_invariant_in_loop_p): New function.
	(idx_find_step): Handle step and lower bound for ARRAY_REFs.  Handle
	component_ref_field_offset for COMPONENT_REFs.  Do not allow
	ALIGN_INDIRECT_REFs and MISALIGNED_INDIRECT_REFs.
	(add_address_candidates): Do not handle ALIGN_INDIRECT_REFs and
	MISALIGNED_INDIRECT_REFs.
	(idx_remove_ssa_names): Handle step and lower bound for ARRAY_REFs.
	(rewrite_address_base): Do not handle ALIGN_INDIRECT_REFs and
	MISALIGNED_INDIRECT_REFs.

From-SVN: r88123
2004-09-26 08:32:40 +00:00
Dorit Naishlos
7ccf35ed17 tree.def (ALIGN_INDIRECT_REF, [...]): New tree-codes.
2004-09-23  Dorit Naishlos <dorit@il.ibm.com>

        * tree.def (ALIGN_INDIRECT_REF, MISALIGNED_INDIRECT_REF):
        New tree-codes.
        * tree.h (REF_ORIGINAL): Consider ALIGN_INDIRECT_REF and
        MISALIGNED_INDIRECT_REF.
        * alias.c (get_alias_set, nonoverlapping_memrefs_p): Likewise.
        * emit-rtl.c (mem_expr_equal_p, set_mem_attributes_minus_bitpos):
        Likewise.
        * expr.c (safe_from_p, expand_expr_real_1, rewrite_address_base)
        (find_interesting_uses_address): Likewise.
        * fold-const.c (non_lvalue, operand_equal_p): Likewise.
        (build_fold_addr_expr_with_type): Likewise.
        * gimplify.c (gimplify_addr_expr, gimplify_expr): Likewise.
        * print-rtl.c (print_mem_expr): Likewise.
        * tree-dump.c (dequeue_and_dump): Likewise.
        * tree-eh.c (tree_could_trap_p): Likewise.
        * tree-gimple.c (is_gimple_addressable, get_base_address): Likewise.
        * tree-pretty-print.c (op_prio, op_symbol, dump_generic_node): Likewise.
        * tree-ssa-alias.c (find_ptr_dereference, ptr_is_dereferenced_by):
        Likewise.
        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Likewise.
        * tree-ssa-dom.c (record_equivalences_from_stmt): Likewise.
        * tree-ssa-loop-im.c (for_each_index, is_call_clobbered_ref): Likewise.
        * tree-ssa-loop-ivopts.c (find_interesting_uses_address): Likewise.
        (add_address_candidates, rewrite_address_base): Likewise.
        * tree-ssa-operands.c (get_expr_operands, get_indirect_ref_operands):
        Likewise.
        * tree.c (staticp, build1_stat): Likewise.

        * tree.def (REALIGN_LOAD_EXPR, REALIGN_STORE_EXPR): New tree-codes.
        * tree-pretty-print.c (dump_generic_node): Consider REALIGN_LOAD_EXPR.
        * tree-ssa-operands.c (get_expr_operands): Likewise.
        * expr.c (expand_expr_real_1): Likewise.

        * optabs.h (vec_realign_store_optab, vec_realign_load_optab): New
        optabs.
        (OTI_vec_realign_store, OTI_vec_realign_load): New optab_index values
        for the new optabs.
        (expand_ternary_op): New function.
        * genopinit.c (optabs): Handle the new optabs.
        * optabs.c (optab_for_tree_code): Add cases for the new tree-codes.
        (init_optabs): Initialize vec_realign_load_optab.
        (expand_ternary_op): New functions.

        * target-def.h (TARGET_VECTORIZE): New member for struct gcc_target.
        (TARGET_VECTORIZE_MISALIGNED_MEM_OK): New member for targetm.vectorize.
        (TARGET_VECTORIZE_BUILTIN_MASK_FOR_LOAD): Likewise.
        (TARGET_VECTORIZE_BUILTIN_MASK_FOR_STORE): Likewise.
        * target.h (struct vectorize): New member for struct gcc_target.
        (misaligned_mem_ok): New member for targetm.vectorize.
        (builtin_mask_for_load): Likewise.
        (builtin_mask_for_store): Likewise.
        * targethooks.c (default_vect_misaligned_mem_ok): New function.
        * targethooks.h (default_vect_misaligned_mem_ok): New function.

        * config/rs6000/altivec.md (build_vector_mask_for_load): New
        define_expand.
        (vec_realign_load_v4si, vec_realign_load_v4sf, vec_realign_load_v8hi)
        (vec_realign_load_v16qi): New define_insn.
        * config/rs6000/rs6000.h (ALTIVEC_BUILTIN_MASK_FOR_LOAD):
        (ALTIVEC_BUILTIN_MASK_FOR_STORE): New target builtins.
        * config/rs6000/rs6000.c (altivec_builtin_mask_for_load):
        (altivec_builtin_mask_for_store): New variables.
        (rs6000_builtin_mask_for_load): New function. Implements
        TARGET_VECTORIZE_BUILTIN_MASK_FOR_LOAD.
        (rs6000_builtin_mask_for_store): New function. Implements
        TARGET_VECTORIZE_BUILTIN_MASK_FOR_STORE.
        (rs6000_expand_builtin): Expand the target builtins
        builtin_mask_for_load and builtin_mask_for_store.
        (altivec_init_builtins): Initialize the new target builtins.
        * config/i386/i386.c (ix86_misaligned_mem_ok): New function.
        Implements the target hook TARGET_VECTORIZE_MISALIGNED_MEM_OK.

        * tree-vectorizer.c (vect_create_data_ref): Renamed to
        vect_create_data_ref_ptr. Returns a pointer instead of an array-ref.
        (vect_create_addr_base_for_vector_ref): Additional argument (offset).
        (vectorizable_store): Call vect_create_data_ref_ptr with additional
        arguments, and create an indirect_ref with its return value data_ref.
        Check aligned_access_p.
        (vectorizable_load): Handle misaligned loads, using software-pipelined
        scheme with REALIGN_LOAD_EXPR and ALIGN_INDIRECT_REF if
        vec_realign_load_optab is supported, or using a scheme without
        software-pipelining with MISALIGNED_INDIRECT_REF if the target hook
        misaligned_mem_ok is supported.

        (vect_finish_stmt_generation): Typo.
        (vect_enhance_data_refs_alignment): Rename loop_vinfo to loop_info.
        (vect_analyze_data_refs_alignment): Don't fail vectorization in the
        presence of misaligned loads.
        (vect_analyze_data_ref_access): Add check for constant init.
        (vect_get_symbl_and_dr): Remove duplicate line.
        * tree-vectorizer.h (DR_MISALIGNMENT): Add comment.

From-SVN: r87948
2004-09-23 14:34:35 +00:00
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