RFA: patch to remove the old RA

[Vladimir Makarov <vmakarov at redhat dot com>]

Here is the patch removing the old RA.  The patch removes global.c, 
local-alloc.c,
ra-conflict.c fully and big part of regclass.c and regmove.c.  I also 
renamed
regclass.c to reginfo.c because the old name wrongly would reflect its 
contents.

The patch was successfully bootstrapped on x86/x86_64.

Ok to commit?

2008-12-09  Vladimir Makarov  <vmakarov@redhat.com>

   * doc/passes.texi: Remove entries about regclass, local-alloc, and
   global.  Modify entries about regmove and IRA.

   * ra-conflict.c: Remove the file.

   * reload.c (push_reload, find_dummy_reload): Remove flag_ira.

   * tree-pass.h (pass_local_alloc, pass_global_alloc): Remove.
   (pass_regclass_init): Rename to pass_reginfo_init.

   * cfgloopanal.c (estimate_reg_pressure_cost): Remove flag_ira.

   * toplev.h (flag_ira): Remove.

   * caller-save.c (setup_save_areas): Remove flag_ira.

   * ira-color.c (ira_reuse_stack_slot, ira_mark_new_stack_slot):
   Ditto.

   * global.c: Remove the file.

   * opts.c: (decode_options): Remove flag_ira.

   * hard-reg-set.h (call_really_used_regs,
   losing_caller_save_reg_set): Remove.

   * regmove.c: Modify file description.
   (find_use_as_address, try_auto_increment, replacement_quality,
   replace_in_call_usage, fixup_match_1,
   stable_and_no_regs_but_for_p): Remove.
   (reg_set_in_bb): Make it static.
   (regmove_optimize): Remove flag_ira and code which worked for
   !flag_ira.

   * local-alloc.c: Remove the file.

   * common.opt (fira): Remove.

   * ira.c: Include except.h.
   (eliminable_regset): Move from global.c.
   (mark_elimination): Ditto.  Remove flag_ira.
   (reg_renumber, struct equivalence, reg_equiv, equiv_mem,
   equiv_mem_modified, validate_equiv_mem_from_store,
   validate_equiv_mem, equiv_init_varies_p, equiv_init_movable_p,
   contains_replace_regs, memref_referenced_p, memref_used_between_p,
   no_equiv, recorded_label_ref): Move from local-alloc.c.
   (update_equiv_regs): Ditto.  Make it static.
   (print_insn_chain, print_insn_chains): Move it from global.c.
   pseudo_for_reload_consideration_p): Ditto.  Remove flag_ira.
   (build_insn_chain): Ditto.  Make it static.
   (ra_init_live_subregs): Move from ra-conflict.c.  Make it static.
   Rename to init_live_subregs.
   (gate_ira): Remove flag_ira.

   * regclass.c: Rename reginfo.c.  Change file description.
   (FORBIDDEN_INC_DEC_CLASSES): Remove.
   (call_really_used_regs): Make static.
   (reg_class_superclasses, forbidden_inc_dec_class, in_inc_dec):
   Remove.
   (init_reg_sets_1): Remove code for evaluation of
   reg_class_superclasses and losing_caller_save_reg_set.
   (init_regs): Remove init_reg_autoinc.
   (struct costs, costs, init_cost, ok_for_index_p_nonstrict,
   ok_for_base_p_nonstrict): Remove.
   (regclass_init): Rename to reginfo_init.  Don't initialize
   init_cost.
   (pass_regclass_init): Rename to pass_reginfo_init.  Modify
   corresponding entries.
   (dump_regclass, record_operand_costs, scan_one_insn,
   init_reg_autoinc, regclass, record_reg_classes, copy_cost,
   record_address_regs, auto_inc_dec_reg_p): Remove.
   (gt-regclass.h): Rename to gt-reginfo.h.

   * rtl.h (dump_global_regs, retry_global_alloc,
   build_insn_chain, dump_local_alloc, update_equiv_regs):
   Remove.

   * Makefile.in (RA_H): Remove.
   (OBJS-common): Remove global.o, local-alloc.o, and ra-conflict.o.
   Rename regclass.o to reginfo.o.
   (regclass.o): Rename to reginfo.o.  Rename gt-regclass.h to
   gt-reginfo.h.
   (global.o, local-alloc.o, ra-conflict.o): Remove entries.
   (GTFILES): Rename regclass.c to    reginfo.c.

   * passes.c (init_optimization_passes): Remove pass_local_alloc and
   pass_global_alloc.  Rename pass_regclass_init to
   pass_reginfo_init.

   * reload1.c (compute_use_by_pseudos, reload, count_pseudo,
   count_spilled_pseudo, find_reg, alter_reg, delete_output_reload):
   Remove flag_ira.
   (finish_spills): Ditto.  Remove code for !flga_ira.

Attachment: remove-old-ra.patch.gz
Description: GNU Zip compressed data