+2011-03-28 Vladimir Makarov <vmakarov@redhat.com>
+
+ * ira-color.c (update_left_conflict_sizes_p): Don't assume that
+ conflict object hard regset nodes have intersecting hard reg sets.
+
+ * regmove.c (regmove_optimize): Move ira_set_pseudo_classes call
+ after regstat_init_n_sets_and_refs.
+
+ * ira.c: Add more comments at the top.
+ (setup_stack_reg_pressure_class, setup_pressure_classes):
+ Add comments how we compute the register pressure classes.
+ (setup_allocno_and_important_classes): Add more comments.
+ (setup_class_translate_array, reorder_important_classes)
+ (setup_reg_class_relations): Add comments.
+
+ * ira-emit.c: Add 2011 to the Copyright line. Add comments at the
+ start of the file.
+
+ * ira-color.c: Add 2011 to the Copyright line.
+ (assign_hard_reg): Add more comments.
+ (improve_allocation): Ditto.
+
+ * ira-costs.c: Add 2011 to the Copyright line.
+ (setup_cost_classes, setup_regno_cost_classes_by_aclass): Add more
+ comments.
+ (setup_regno_cost_classes_by_mode): Ditto.
+
+ Initial patches from ira-improv branch:
+
+ 2010-08-13 Vladimir Makarov <vmakarov@redhat.com>
+
+ * ira-build.c: (ira_create_object): Remove initialization of
+ OBJECT_PROFITABLE_HARD_REGS. Initialize OBJECT_ADD_DATA.
+ (ira_create_allocno): Remove initialization of
+ ALLOCNO_MEM_OPTIMIZED_DEST, ALLOCNO_MEM_OPTIMIZED_DEST_P,
+ ALLOCNO_SOMEWHERE_RENAMED_P, ALLOCNO_CHILD_RENAMED_P,
+ ALLOCNO_IN_GRAPH_P, ALLOCNO_MAY_BE_SPILLED_P, ALLOCNO_COLORABLE_P,
+ ALLOCNO_NEXT_BUCKET_ALLOCNO, ALLOCNO_PREV_BUCKET_ALLOCNO,
+ ALLOCNO_FIRST_COALESCED_ALLOCNO, ALLOCNO_NEXT_COALESCED_ALLOCNO.
+ Initialize ALLOCNO_ADD_DATA.
+ (copy_info_to_removed_store_destinations): Use ALLOCNO_EMIT_DATA
+ and allocno_emit_reg instead of ALLOCNO_MEM_OPTIMIZED_DEST_P and
+ ALLOCNO_REG.
+ (ira_flattening): Ditto. Use ALLOCNO_EMIT_DATA instead of
+ ALLOCNO_MEM_OPTIMIZED_DEST and ALLOCNO_SOMEWHERE_RENAMED_P.
+
+ * ira.c (ira_reallocate): Remove.
+ (setup_pressure_classes): Call
+ ira_init_register_move_cost_if_necessary. Use
+ ira_register_move_cost instead of ira_get_register_move_cost.
+ (setup_allocno_assignment_flags): Use ALLOCNO_EMIT_DATA.
+ (ira): Call ira_initiate_emit_data and ira_finish_emit_data.
+
+ * ira-color.c: Use ALLOCNO_COLOR_DATA instead of
+ ALLOCNO_IN_GRAPH_P, ALLOCNO_MAY_BE_SPILLED_P, ALLOCNO_COLORABLE_P,
+ ALLOCNO_AVAILABLE_REGS_NUM, ALLOCNO_NEXT_BUCKET_ALLOCNO,
+ ALLOCNO_PREV_BUCKET_ALLOCNO. ALLOCNO_TEMP. Use OBJECT_COLOR_DATA
+ instead of OBJECT_PROFITABLE_HARD_REGS, OBJECT_HARD_REGS_NODE,
+ OBJECT_HARD_REGS_SUBNODES_START, OBJECT_HARD_REGS_SUBNODES_NUM.
+ Fix formatting.
+ (object_hard_regs_t, object_hard_regs_node_t): Move from
+ ira-int.h.
+ (struct object_hard_regs, struct object_hard_regs_node): Ditto.
+ (struct allocno_color_data): New.
+ (allocno_color_data_t): New typedef.
+ (allocno_color_data): New definition.
+ (ALLOCNO_COLOR_DATA): New macro.
+ (struct object_color_data): New.
+ (object_color_data_t): New typedef.
+ (object_color_data): New definition.
+ (OBJECT_COLOR_DATA): New macro.
+ (update_copy_costs, calculate_allocno_spill_cost): Call
+ ira_init_register_move_cost_if_necessary. Use
+ ira_register_move_cost instead of ira_get_register_move_cost.
+ (move_spill_restore, update_curr_costs): Ditto.
+ (allocno_spill_priority): Make it inline.
+ (color_pass): Allocate and free allocno_color_dat and
+ object_color_data.
+ (struct coalesce_data, coalesce_data_t): New.
+ (allocno_coalesce_data): New definition.
+ (ALLOCNO_COALESCE_DATA): New macro.
+ (merge_allocnos, coalesced_allocno_conflict_p): Use
+ ALLOCNO_COALESCED_DATA instead of ALLOCNO_FIRST_COALESCED_ALLOCNO,
+ ALLOCNO_NEXT_COALESCED_ALLOCNO, ALLOCNO_TEMP.
+ (coalesce_allocnos): Ditto.
+ (setup_coalesced_allocno_costs_and_nums): Ditto.
+ (collect_spilled_coalesced_allocnos): Ditto.
+ (slot_coalesced_allocno_live_ranges_intersect_p): Ditto.
+ (setup_slot_coalesced_allocno_live_ranges): Ditto.
+ (coalesce_spill_slots): Ditto.
+ (ira_sort_regnos_for_alter_reg): Ditto. Allocate, initialize and
+ free allocno_coalesce_data.
+
+ * ira-conflicts.c: Fix formatting.
+ (process_regs_for_copy): Call
+ ira_init_register_move_cost_if_necessary. Use
+ ira_register_move_cost instead of ira_get_register_move_cost.
+ (build_object_conflicts): Optimize.
+
+ * ira-costs.c (record_reg_classes): Optimize. Call
+ ira_init_register_move_cost_if_necessary. Use
+ ira_register_move_cost, ira_may_move_in_cost, and
+ ira_may_move_out_cost instead of ira_get_register_move_cost and
+ ira_get_may_move_cost.
+ (record_address_regs): Ditto.
+ (scan_one_insn): Optimize.
+ (find_costs_and_classes): Optimize.
+ (process_bb_node_for_hard_reg_moves): Call
+ ira_init_register_move_cost_if_necessary. Use
+ ira_register_move_cost instead of ira_get_register_move_cost.
+
+ * ira-emit.c: Use allocno_emit_reg, ALLOCNO_EMIT_DATA instead of
+ ALLOCNO_REG, ALLOCNO_CHILD_RENAMED_P, ALLOCNO_MEM_OPTIMIZED_DEST,
+ ALLOCNO_MEM_OPTIMIZED_DEST_P, and ALLOCNO_SOMEWHERE_RENAMED_P.
+ (ira_allocno_emit_data, void_p, new_allocno_emit_data_vec): New
+ definitions.
+ (ira_initiate_emit_data, ira_finish_emit_data)
+ (create_new_allocno): New functions.
+ (modify_move_list): Call create_new_alloc instead of
+ ira_create_allocno.
+ (emit_move_list): Call ira_init_register_move_cost_if_necessary.
+ Use ira_register_move_cost instead of ira_get_register_move_cost.
+
+ * ira-int.h: Fix some comments.
+ (object_hard_regs_t, object_hard_regs_node_t): Move
+ to ira-color.c.
+ (struct object_hard_regs, struct object_hard_regs_node):
+ Ditto.
+ (struct ira_object): Remove profitable_hard_regs, hard_regs_node,
+ hard_regs_subnodes_start, hard_regs_subnodes_num. Add new member
+ add_data.
+ (struct ira_allocno): Make mode and aclass a bitfield. Move other
+ bitfield after mode. Make hard_regno a short int. Make
+ hard_regno short. Remove first_coalesced_allocno and
+ next_coalesced_allocno. Move mem_optimized_dest_p,
+ somewhere_renamed_p, child_renamed_p, reg, and mem_optimized_dest
+ into struct ira_emit_data. Remove in_graph_p, may_be_spilled_p,
+ available_regs_num, next_bucket_allocno, prev_bucket_allocno,
+ temp, colorable_p. Add new member add_data.
+ (ALLOCNO_IN_GRAPH_P, ALLOCNO_MAY_BE_SPILLED_P): Remove.
+ (ALLOCNO_COLORABLE_P, ALLOCNO_AVAILABLE_REGS_NUM): Remove.
+ (ALLOCNO_NEXT_BUCKET_ALLOCNO, ALLOCNO_PREV_BUCKET_ALLOCNO): Remove.
+ (ALLOCNO_TEMP, ALLOCNO_FIRST_COALESCED_ALLOCNO): Remove.
+ (ALLOCNO_NEXT_COALESCED_ALLOCNO): Remove.
+ (ALLOCNO_ADD_DATA): New macro.
+ (ira_emit_data_t): New typedef.
+ (struct ira_emit_data): New. Move mem_optimized_dest_p,
+ somewhere_renamed_p, child_renamed_p, reg, mem_optimized_dest
+ from struct ira_allocno.
+ (ALLOCNO_EMIT_DATA): New macro.
+ (ira_allocno_emit_data, allocno_emit_reg): New.
+ (ALLOCNO_PROFITABLE_HARD_REGS, OBJECT_HARD_REGS_NODE): Remove.
+ (OBJECT_HARD_REGS_SUBNODES_STAR, OBJECT_HARD_REGS_SUBNODES_NUM):
+ Remove.
+ (OBJECT_ADD_DATA): New macro.
+ (ira_reallocate): Remove.
+ (ira_initiate_emit_data, ira_finish_emit_data): New.
+ (ira_get_register_move_cost, ira_get_may_move_cost): Remove.
+ (ira_init_register_move_cost_if_necessary): New.
+ (ira_object_conflict_iter_next): Merge into
+ ira_object_conflict_iter_cond.
+ (FOR_EACH_OBJECT_CONFLICT): Don't use
+ ira_object_conflict_iter_next.
+
+ * ira-live.c: (process_single_reg_class_operands): Call
+ ira_init_register_move_cost_if_necessary. Use
+ ira_register_move_cost instead of ira_get_register_move_cost.
+
+ 2010-08-13 Vladimir Makarov <vmakarov@redhat.com>
+
+ * ira-int.h (struct target_ira_int): Remove x_cost_classes.
+
+ * ira-costs.c: Fix formatting.
+ (cost_classes, cost_classes_num): Remove.
+ (struct cost_classes, cost_classes_t, const_cost_classes_t): New.
+ (regno_cost_classes, cost_classes_hash, cost_classes_eq): New.
+ (cost_classes_del, cost_classes_htab): New.
+ (cost_classes_aclass_cache, cost_classes_mode_cache): New.
+ (initiate_regno_cost_classes, setup_cost_classes): New.
+ (setup_regno_cost_classes_by_aclass): New.
+ (setup_regno_cost_classes_by_mode, finish_regno_cost_classes):
+ New.
+ (record_reg_classes): Use regno_cost_classes instead of
+ cost_classes. Move checking opposite operand up.
+ (record_address_regs): Use regno_cost_classes
+ instead of cost_classes.
+ (scan_one_insn): Ditto. Use always general register.
+ (print_allocno_costs): Use regno_cost_classes instead of
+ cost_classes.
+ (print_pseudo_costs): Ditto. Use Reg_N_REFS.
+ (find_costs_and_classes): Set up cost classes for each registers.
+ Use also their mode for this. Use regno_cost_classes instead of
+ cost_classes.
+ (setup_allocno_class_and_costs): Use regno_cost_classes instead of
+ cost_classes.
+ (free_ira_costs, ira_init_costs): Don't use cost_classes.
+ (ira_costs, ira_set_pseudo_classes): Call
+ initiate_regno_cost_classes and finish_regno_cost_classes.
+
+ 2010-10-04 Vladimir Makarov <vmakarov@redhat.com>
+
+ * target-def.h (TARGET_IRA_COVER_CLASSES): Remove.
+
+ * target.def (ira_cover_classes): Remove.
+
+ * doc/tm.texi: Remove TARGET_IRA_COVER_CLASSES and
+ IRA_COVER_CLASSES.
+
+ * doc/tm.texi.in: Ditto.
+
+ * ira-conflicts.c: Remove mentioning cover classes from the file.
+ Use ALLOCNO_CLASS instead of ALLOCNO_COVER_CLASS. Use
+ ALLOCNO_COVER_CLASS_COST instead of ALLOCNO_CLASS_COST. Fix
+ formatting.
+
+ * targhooks.c (default_ira_cover_classes): Remove.
+
+ * targhooks.h (default_ira_cover_classes): Ditto.
+
+ * haifa-sched.c: Remove mentioning cover classes from the file.
+ Use ira_reg_pressure_cover instead of ira_reg_class_cover. Use
+ ira_pressure_classes and ira_pressure_classes_num instead of
+ ira_reg_class_cover_size and ira_reg_class_cover. Use
+ sched_regno_pressure_class instead of sched_regno_cover_class.
+ (mark_regno_birth_or_death, setup_insn_reg_pressure_info): Use
+ ira_reg_class_max_nregs instead of ira_reg_class_nregs.
+
+ * ira-int.h: Add 2010 to Copyright. Remove mentioning cover
+ classes from the file.
+ (object_hard_regs_t, object_hard_regs_node_t): New typedefs.
+ (struct object_hard_regs, struct object_hard_regs_node): New.
+ (struct ira_object): New members profitable_hard_regs,
+ hard_regs_node, hard_regs_subnodes_start, hard_regs_subnodes_num.
+ (struct ira_allocno): Rename cover_class to aclass. Rename
+ cover_class_cost and updated_cover_class_cost to class_cost and
+ updated_class_cost. Remove splay_removed_p and
+ left_conflict_size. Add new members colorable_p.
+ (ALLOCNO_SPLAY_REMOVED_P, ALLOCNO_LEFT_CONFLICTS_SIZE): Remove.
+ (ALLOCNO_COLORABLE_P): New macro.
+ (ALLOCNO_COVER_CLASS): Rename to ALLOCNO_CLASS.
+ (ALLOCNO_COVER_CLASS_COST, ALLOCNO_UPDATED_COVER_CLASS_COST):
+ Rename to ALLOCNO_CLASS_COST and ALLOCNO_UPDATED__CLASS_COST.
+ (OBJECT_...): Rename parameter C to O.
+ (OBJECT_PROFITABLE_HARD_REGS): New macro.
+ (OBJECT_HARD_REGS_NODE, OBJECT_HARD_REGS_SUBNODES_START)
+ (OBJECT_HARD_REGS_SUBNODES_NUM): New macros.
+ (struct target_ira_int): New members x_ira_max_memory_move_cost,
+ x_ira_max_register_move_cost, x_ira_max_may_move_in_cost,
+ x_ira_max_may_move_out_cost, x_ira_reg_allocno_class_p,
+ x_ira_reg_pressure_class_p, x_ira_important_class_nums,
+ x_ira_reg_class_superunion. Rename x_prohibited_class_mode_reg to
+ x_ira_prohibited_class_mode_reg. Rename x_ira_reg_class_union to
+ x_ira_reg_class_subunion.
+ (ira_max_memory_move_cost, ira_max_register_move_cost)
+ (ira_max_may_move_in_cost, ira_max_may_move_out_cost)
+ (ira_reg_allocno_class_p, ira_reg_pressure_class_p)
+ (ira_important_class_nums, ira_reg_class_superunion): New macros.
+ (prohibited_class_mode_regs): Rename to
+ ira_prohibited_class_mode_regs.
+ (ira_reg_class_union): Rename to ira_reg_class_subunion.
+ (ira_debug_class_cover): Rename to ira_debug_allocno_classes.
+ (ira_set_allocno_cover_class): Rename to ira_set_allocno_class.
+ (ira_tune_allocno_costs_and_cover_classes): Rename to
+ ira_tune_allocno_costs.
+ (ira_debug_hard_regs_forest): New.
+ (ira_object_conflict_iter_init, ira_object_conflict_iter_cond)
+ (ira_object_conflict_iter_next): Fix comments.
+ (ira_hard_reg_set_intersection_p, hard_reg_set_size): New
+ functions.
+ (ira_allocate_and_set_costs, ira_allocate_and_copy_costs): Rename
+ cover_class to aclass.
+ (ira_allocate_and_accumulate_costs): Ditto.
+ (ira_allocate_and_set_or_copy_costs): Ditto.
+
+ * opts.c (decode_options): Remove ira_cover_class check.
+
+ * ira-color.c: Remove mentioning cover classes from the file. Use
+ ALLOCNO_CLASS, ALLOCNO_CLASS_COST, and ALLOCNO_UPDATED_CLASS_COST
+ instead of ALLOCNO_COVER_CLASS, ALLOCNO_COVER_CLASS_COST, and
+ ALLOCNO_UPDATED_COVER_CLASS_COST. Fix formatting.
+ (splay-tree.h): Remove include.
+ (allocno_coalesced_p, processed_coalesced_allocno_bitmap): Move
+ before copy_freq_compare_func.
+ (allocnos_for_spilling, removed_splay_allocno_vec): Remove.
+ (object_hard_regs_vec, object_hard_regs_htab, node_check_tick):
+ New definitions.
+ (hard_regs_roots, hard_regs_node_vec): Ditto.
+ (object_hard_regs_hash, object_hard_regs_eq, find_hard_regs): Ditto.
+ (insert_hard_regs, init_object_hard_regs, add_object_hard_regs): Ditto.
+ (finish_object_hard_regs, object_hard_regs_compare): Ditto.
+ (create_new_object_hard_regs_node): Ditto.
+ (add_new_object_hard_regs_node_to_forest): Ditto.
+ (add_object_hard_regs_to_forest, collect_object_hard_regs_cover):
+ Ditto.
+ (setup_object_hard_regs_nodes_parent, first_common_ancestor_node):
+ Ditto.
+ (print_hard_reg_set, print_hard_regs_subforest): Ditto.
+ (print_hard_regs_forest, ira_debug_hard_regs_forest): Ditto.
+ (remove_unused_object_hard_regs_nodes): Ditto.
+ (enumerate_object_hard_regs_nodes): Ditto.
+ (object_hard_regs_nodes_num, object_hard_regs_nodes): Ditto.
+ (object_hard_regs_subnode_t): Ditto.
+ (struct object_hard_regs_subnode): Ditto.
+ (object_hard_regs_subnodes, object_hard_regs_subnode_index): Ditto.
+ (setup_object_hard_regs_subnode_index): Ditto.
+ (get_object_hard_regs_subnodes_num): Ditto.
+ (form_object_hard_regs_nodes_forest): Ditto.
+ (finish_object_hard_regs_nodes_tree): Ditto.
+ (finish_object_hard_regs_nodes_forest): Ditto.
+ (allocnos_have_intersected_live_ranges_p): Rename to
+ allocnos_conflict_by_live_ranges_p. Move before
+ copy_freq_compare_func.
+ (pseudos_have_intersected_live_ranges_p): Rename to
+ conflict_by_live_ranges_p. Move before copy_freq_compare_func.
+ (setup_left_conflict_sizes_p, update_left_conflict_sizes_p): Ditto.
+ (empty_profitable_hard_regs, setup_profitable_hard_regs): Ditto.
+ (update_copy_costs): Remove assert. Skip cost update if the hard
+ reg does not belong the class.
+ (assign_hard_reg): Process only profitable hard regs.
+ (uncolorable_allocnos_num): Make it scalar.
+ (allocno_spill_priority): Use ALLOCNO_EXCESS_PRESSURE_POINTS_NUM
+ and ira_reg_class_max_nregs instead of ALLOCNO_LEFT_CONFLICTS_SIZE
+ and ira_reg_class_max_nregs.
+ (bucket_allocno_compare_func): Check frequency first.
+ (sort_bucket): Add compare function as a parameter.
+ (add_allocno_to_ordered_bucket): Assume no coalesced allocnos.
+ (uncolorable_allocnos_splay_tree, USE_SPLAY_P): Remove.
+ (push_allocno_to_stack): Rewrite for checking new allocno
+ colorability.
+ (remove_allocno_from_bucket_and_push): Print cost too. Remove
+ assert.
+ (push_only_colorable): Pass new parameter to sort_bucket.
+ (push_allocno_to_spill): Remove.
+ (allocno_spill_priority_compare): Make it inline and rewrite.
+ (splay_tree_allocate, splay_tree_free): Remove.
+ (allocno_spill_sort_compare): New function.
+ (push_allocnos_to_stack): Sort allocnos for spilling once. Don't
+ build and use splay tree. Choose first allocno in uncolorable
+ allocno bucket to spill. Remove setting spill cost.
+ (all_conflicting_hard_regs): Remove.
+ (setup_allocno_available_regs_num): Check only profitable hard
+ regs. Print info about hard regs nodes.
+ (setup_allocno_left_conflicts_size): Remove.
+ (put_allocno_into_bucket): Don't call
+ setup_allocno_left_conflicts_size. Use
+ setup_left_conflict_sizes_p.
+ (improve_allocation): New.
+ (color_allocnos): Call setup_profitable_hard_regs,
+ form_object_hard_regs_nodes_forest, improve_allocation,
+ finish_object_hard_regs_nodes_forest. Setup spill cost.
+ (print_loop_title): Use pressure classes.
+ (color_allocnso): Ditto.
+ (do_coloring): Remove allocation and freeing splay_tree_node_pool
+ and allocnos_for_spilling.
+ (ira_sort_regnos_for_alter_reg): Don't setup members
+ {first,next}_coalesced_allocno.
+ (color): Remove allocating and freeing removed_splay_allocno_vec.
+ (fast_allocation): Use ira_prohibited_class_mode_regs instead of
+ prohibited_class_mode_regs.
+
+ * ira-lives.c: Remove mentioning cover classes from the file. Fix
+ formatting.
+ (update_allocno_pressure_excess_length): Use pressure classes.
+ (inc_register_pressure, dec_register_pressure): Check for pressure
+ class.
+ (mark_pseudo_regno_live, mark_pseudo_regno_subword_live): Use
+ pressure class. Use ira_reg_class_nregs instead of
+ ira_reg_class_max_nregs.
+ (mark_pseudo_regno_dead, mark_pseudo_regno_subword_dead): Ditto.
+ (mark_hard_reg_live, mark_hard_reg_dead): Use pressure class.
+ (single_reg_class): Use ira_reg_class_nregs instead of
+ ira_reg_class_max_nregs.
+ (process_bb_node_lives): Use pressure classes.
+
+ * ira-emit.c: Remove mentioning cover classes from the file. Use
+ ALLOCNO_CLASS instead of ALLOCNO_COVER_CLASS. Fix formatting.
+ (change_loop): Use pressure classes.
+ (modify_move_list): Call ira_set_allocno_class instead of
+ ira_set_allocno_cover_class.
+
+ * ira-build.c: Remove mentioning cover classes from the file. Use
+ ALLOCNO_CLASS and ALLOCNO_CLASS_COST instead of
+ ALLOCNO_COVER_CLASS and ALLOCNO_COVER_CLASS_COST. Use
+ ALLOCNO_UPDATED_CLASS_COST instead of
+ ALLOCNO_UPDATED_COVER_CLASS_COST. Fix formatting.
+ (ira_create_object): Initiate OBJECT_PROFITABLE_HARD_REGS.
+ (ira_create_allocno): Remove initialization of
+ ALLOCNO_SPLAY_REMOVED_P, ALLOCNO_LEFT_CONFLICT_SIZE. Initialize
+ ALLOCNO_COLORABLE_P.
+ (ira_set_allocno_cover_class): Rename to ira_set_allocno_class.
+ Update conflict regs for the objects.
+ (create_cap_allocno): Remove assert. Don't propagate
+ ALLOCNO_AVAILABLE_REGS_NUM.
+ (ira_free_allocno_costs): New function.
+ (finish_allocno): Change a part of code into call of
+ ira_free_allocno_costs.
+ (low_pressure_loop_node_p): Use pressure classes.
+ (object_range_compare_func): Don't compare classes.
+ (setup_min_max_conflict_allocno_ids): Ditto.
+
+ * loop-invariant.c: Remove mentioning cover classes from the file.
+ Use ira_pressure_classes and ira_pressure_classes_num instead of
+ ira_reg_class_cover_size and ira_reg_class_cover. Fix formatting.
+ (get_cover_class_and_nregs): Rename to
+ get_cover_pressure_and_nregs. Use ira_reg_class_max_nregs instead
+ of ira_reg_class_nregs. Use reg_allocno_class instead of
+ reg_cover_class.
+ (get_inv_cost): Use instead ira_stack_reg_pressure_class of
+ STACK_REG_COVER_CLASS.
+ (get_regno_cover_class): Rename to get_regno_pressure_class.
+ (move_loop_invariants): Initialize and finalize regstat.
+
+ * ira.c: Remove mentioning cover classes from the file. Add
+ comments about coloring without cover classes. Use ALLOCNO_CLASS
+ instead of ALLOCNO_COVER_CLASS. Fix formatting.
+ (alloc_reg_class_subclasses, setup_reg_subclasses): Move it before
+ setup_class_subset_and_memory_move_costs.
+ (setup_stack_reg_pressure_class, setup_pressure_classes): New.
+ (setup_cover_and_important_classes): Rename to
+ setup_allocno_and_important_classes.
+ (setup_class_translate_array): New.
+ (setup_class_translate): Call it for allocno and pressure classes.
+ (cover_class_order): Rename to allocno_class_order.
+ (comp_reg_classes_func): Use ira_allocno_class_translate instead
+ of ira_class_translate.
+ (reorder_important_classes): Set up ira_important_class_nums.
+ (setup_reg_class_relations): Set up ira_reg_class_superunion.
+ (print_class_cover): Rename to print_classes. Add parameter.
+ (ira_debug_class_cover): Rename to ira_debug_allocno_classes.
+ Print pressure classes too.
+ (find_reg_class_closure): Rename to find_reg_classes. Don't call
+ setup_reg_subclasses.
+ (ira_hard_regno_cover_class): Rename to
+ ira_hard_regno_allocno_class.
+ (ira_reg_class_nregs): Rename to ira_reg_class_max_nregs.
+ (setup_prohibited_class_mode_regs): Use
+ ira_prohibited_class_mode_regs instead of
+ prohibited_class_mode_regs.
+ (clarify_prohibited_class_mode_regs): New function.
+ (ira_init_register_move_cost): Set up ira_max_register_move_cost,
+ ira_max_may_move_in_cost, and ira_max_may_move_out_cost.
+ (ira_init_once): Initialize them.
+ (free_register_move_costs): Process them.
+ (ira_init): Move calls of find_reg_classes and
+ setup_hard_regno_aclass after setup_prohibited_class_mode_regs.
+ Call clarify_prohibited_class_mode_regs.
+ (ira_no_alloc_reg): Remove.
+ (too_high_register_pressure_p): Use pressure classes.
+
+ * sched-deps.c: Remove mentioning cover classes from the file.
+ Use ira_reg_pressure_cover instead of ira_reg_class_cover. Use
+ ira_pressure_classes and ira_pressure_classes_num instead of
+ ira_reg_class_cover_size and ira_reg_class_cover.
+ (mark_insn_hard_regno_birth, mark_hard_regno_death): Use
+ sched_regno_pressure_class instead of sched_regno_cover_class.
+ (mark_insn_pseudo_birth, mark_pseudo_death): Ditto. Use
+ ira_reg_class_max_nregs instead of ira_reg_class_nregs.
+
+ * ira.h: Add 2010 to Copyright.
+ (ira_no_alloc_reg): Remove external.
+ (struct target_ira): Rename x_ira_hard_regno_cover_class,
+ x_ira_reg_class_cover_size, x_ira_reg_class_cover, and
+ x_ira_class_translate to x_ira_hard_regno_allocno_class,
+ x_ira_allocno_classes_num, x_ira_allocno_classes, and
+ x_ira_allocno_class_translate. Add x_ira_pressure_classes_num,
+ x_ira_pressure_classes, x_ira_pressure_class_translate, and
+ x_ira_stack_reg_pressure_class. Rename x_ira_reg_class_nregs to
+ x_ira_reg_class_max_nregs. Add x_ira_reg_class_min_nregs and
+ x_ira_no_alloc_regs.
+ (ira_hard_regno_cover_class): Rename to
+ ira_hard_regno_allocno_class.
+ (ira_reg_class_cover_size, ira_reg_class_cover): Rename to
+ ira_allocno_classes_num and ira_allocno_classes.
+ (ira_class_translate): Rename to ira_allocno_class_translate.
+ (ira_pressure_classes_num, ira_pressure_classes): New definitions.
+ (ira_pressure_class_translate, ira_stack_reg_pressure_class): Ditto.
+ (ira_reg_class_nregs): Rename to ira_reg_class_max_nregs.
+ (ira_reg_class_min_nregs, ira_stack_reg_pressure_class): New
+ (ira_no_alloc_regs): New.
+
+ * ira-costs.c: Add 2010 to Copyright. Remove mentioning cover
+ classes from the file. Use ALLOCNO_CLASS instead of
+ ALLOCNO_COVER_CLASS. Use ALLOCNO_CLASS_COST instead of
+ ALLOCNO_COVER_CLASS_COST.
+ (regno_cover_class): Rename to regno_aclass.
+ (record_reg_classes): Use ira_reg_class_subunion instead of
+ ira_reg_class_union.
+ (record_address_regs): Check overflow.
+ (scan_one_insn): Ditto.
+ (print_allocno_costs): Print total mem cost fore regional
+ allocation.
+ (print_pseudo_costs): Use REG_N_REFS.
+ (find_costs_and_classes): Use classes intersected with them on the
+ 1st pass. Check overflow. Use ira_reg_class_subunion instead of
+ ira_reg_class_union. Use ira_allocno_class_translate and
+ regno_aclass instead of ira_class_translate and regno_cover_class.
+ Modify code for finding regno_aclass. Setup preferred classes for
+ the next pass.
+ (setup_allocno_cover_class_and_costs): Rename to
+ setup_allocno_class_and_costs. Use regno_aclass instead of
+ regno_cover_class. Use ira_set_allocno_class instead of
+ ira_set_allocno_cover_class.
+ (init_costs, finish_costs): Use regno_aclass instead of
+ regno_cover_class.
+ (ira_costs): Use setup_allocno_class_and_costs instead of
+ setup_allocno_cover_class_and_costs.
+ (ira_tune_allocno_costs_and_cover_classes): Rename to
+ ira_tune_allocno_costs. Check overflow. Skip conflict hard regs
+ by processing objects. Use ira_reg_class_max_nregs instead of
+ ira_reg_class_nregs.
+
+ * rtl.h (reg_cover_class): Rename to reg_allocno_class.
+
+ * sched-int.h: Remove mentioning cover classes from the file.
+ (sched_regno_cover_class): Rename to sched_regno_pressure_class.
+
+ * reginfo.c: Add 2010 to Copyright. Remove mentioning cover
+ classes from the file.
+ (struct reg_pref): Rename coverclass into allocnoclass.
+ (reg_cover_class): Rename to reg_allocno_class.
+
+ * Makefile.in (ira-color.o): Remove SPLAY_TREE_H from
+ dependencies.
+
+ * config/alpha/alpha.h (IRA_COVER_CLASSES): Remove.
+
+ * config/arm/arm.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/avr/avr.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/bfin/bfin.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/cris/cris.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/fr30/fr30.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/frv/frv.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/h8300/h8300.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/i386/i386.h (STACK_REG_COVER_CLASS): Ditto.
+
+ * config/i386/i386.c (TARGET_IRA_COVER_CLASSES)
+ (i386_ira_cover_classes): Ditto.
+
+ * config/ia64/ia64.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/iq2000/iq2000.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/m32r/m32r.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/m68k/m68k.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/mcore/mcore.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/mep/mep.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/mips/mips.c (TARGET_IRA_COVER_CLASSES)
+ (mips_ira_cover_classes): Ditto.
+
+ * config/mn10300/mn10300.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/moxie/moxie.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/pa/pa64-regs.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/pa/pa32-regs.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/picochip/picochip.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/rs6000/rs6000.h (IRA_COVER_CLASSES_PRE_VSX)
+ (IRA_COVER_CLASSES_VSX): Ditto.
+
+ * config/rs6000/rs6000.c (TARGET_IRA_COVER_CLASSES)
+ (rs6000_ira_cover_classes): Ditto.
+
+ * config/rx/rx.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/s390/s390.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/score/score.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/sh/sh.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/sparc/sparc.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/spu/spu.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/stormy16/stormy16.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/v850/v850.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/vax/vax.h (IRA_COVER_CLASSES): Ditto.
+
+ * config/xtensa/xtensa.h (IRA_COVER_CLASSES): Ditto.
+
2011-03-29 Jakub Jelinek <jakub@redhat.com>
PR debug/48253
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