gcc/gcc/web.c

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/* Web construction code for GNU compiler.
Contributed by Jan Hubicka.
Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
2005-06-25 04:02:01 +02:00
Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA. */
/* Simple optimization pass that splits independent uses of each pseudo,
increasing effectiveness of other optimizations. The optimization can
serve as an example of use for the dataflow module.
We don't split registers with REG_USERVAR set unless -fmessy-debugging
is specified, because debugging information about such split variables
is almost unusable.
TODO
- Add code to keep debugging up-to-date after splitting user variable
pseudos. This can be done by keeping track of all the pseudos used
for the variable and using life analysis information before reload
to determine which one is live and, in case more than one are live,
choose the one with the latest definition.
Other optimization passes can benefit from the infrastructure too.
- We may use profile information and ignore infrequent use for the
purpose of web unifying, inserting the compensation code later to
implement full induction variable expansion for loops (currently
we expand only if the induction variable is dead afterward, which
is often the case). */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "toplev.h"
#include "rtl.h"
#include "hard-reg-set.h"
#include "flags.h"
bitmap.h (struct bitmap_obstack): New obstack type. * bitmap.h (struct bitmap_obstack): New obstack type. (struct bitmap_head_def): Replace using_obstack with obstack pointer. (bitmap_default_obstack): New. (bitmap_initialize): Make inline, does not do allocation. (bitmap_release_memory): Remove. (bitmap_obstack_initialize, bitmap_obstack_release): Declare. (bitmap_obstack_alloc, bitmap_malloc_alloc, bitmap_gc_alloc, bitmap_obstack_free, bitmap_malloc_free): Declare. (BITMAP_OBSTACK_ALLOC, BITMAP_GGC_ALLOC, BITMAP_XMALLOC): Adjust. (BITMAP_FREE): Replace with ... (BITMAP_OBSTACK_FREE): ... this. (BITMAP_XFREE): Adjust. (BITMAP_INIT_ONCE): Remove. * bitmap.c (bitmap_obstack, bitmap_obstack_init, bitmap_free: Remove. (bitmap_default_obstack): New. (bitmap_elem_to_freelist): Adjust. (bitmap_element_allocate): Adjust. Break initialization into ... (bitmap_obstack_initialize): ... here. (bitmap_release_memory): Replace with ... (bitmap_obstack_release): ... this. (bitmap_obstack_alloc, bitmap_malloc_alloc, bitmap_gc_alloc, bitmap_obstack_free, bitmap_malloc_free): New. (bitmap_ior_and_compl, bitmap_ior_and_compl_into): Use bitmap_initialize. (bitmap_initialize): Move to bitmap.h. * gengtype.c (open_base_files): Add obstack.h to ifiles. * Makefile.in (BASIC_BLOCK_H, REGS_H): Add obstack.h. * basic-block.h (INIT_REG_SET): Allocate from reg_obstack. (INITIALIZE_REG_SET): Remove. (FREE_REG_SET): Use BITMAP_OBSTACK_FREE. (INIT_ONCE_REG_SET, MAX_REGNO_REG_SET): Remove. (flow_obstack): Do not declare. (reg_obstack): Declare. * regs.h: Include obstack.h. * tree-optimize.c (tree_rest_of_compilation): Initialize and release bitmap obstack here. * bb-reorder.c: #include regs, not basic-block. (fix_crossing_conditional_branches): Allocate regsets from reg_obstack. * bt-load.c: Do not inlude bitmap.h, sbitmap.h, basic-block.h or obstack.h. * caller-save.c: Include regs.h earlier. * cfg.c: Do not include basic-block.h or obstack.h. (reg_obstack): Define. * cfganal.c: Include obstack.h * cfgcleanyp.c: Do not include basic-block.h. Include regs.h earlier. * cfglayout.c: Do not include obstack.h. (flow_obstack): Remove declaration. (cfg_layout_duplicate_bb): Use reg_obstack. * cfgloop.c, cfgloopanal.c, cfgloopmanip.c: Include obstack.h. * cfgrtl.c (rtl_split_block): Use reg_obstack. (force_nonfallthru_and_redirect, rtl_split_edge): Likewise. (safe_insert_insn_on_edge): Use OBSTACK_ALLOC_REG_SET, adjust. (cfg_layout_split_edge): Use reg_obstack. * cse.c: Include regs.h earlier. * ddg.c: Do not include basic-block.h. * dominance.c: Inlude obstack.h. * flow.c (update_life_info): Use OBSTACK_ALLOC_REG_SET, adjust. (calculate_global_regs_live): Likewise. (allocate_bb_life_data): Use reg_obstack. (init_propagate_block_info): Use OBSTACK_ALLOC_REGSET. * global.c: Do not include basic-block.h. (build_insn_chain): Use OBSTACK_ALLOC_REG_SET, adjust. * graph.c: Include obstack.h. * haifa-sched.c: Do not include basic-block.h. * ifcvt.c: Use OBSTACK_ALLOC_REG_SET, adjust. * local-alloc.c: Do not include basic-block.h. * loop-init.c, loop-invariant.c: Include obstack.h. * loop-iv.c: Likewise. (simplify_using_initial_values): Use OBSTACK_ALLOC_REG_SET, adjust. * loop-unroll.c, loop-unswitch.c: Inlude obstack.h. * modulo-sched.c: Do not include basic-block.h. * passes.c (rest_of_handle_final): Do not call regset_release_memory. * ra-debug.c: Include regs.h earlier. Do not include basic-block.h. * recog.c (peephole2_optimize): Use OBSTACK_ALLOC_REG_SET, adjust. * regclass.c (init_reg_sets): Do not call INIT_ONCE_REG_SET. (allocate_reg_info): Do not call MAX_REGNO_REG_SET. (regset_release_memory): Remove. * resource.c: Do not include basic-block.h. * rtlanal.c: Do not include basic-block.h. * sbitmap.c: Include obstack.h. * sched-deps.c: Do not include basic-block.h. (reg_pending_sets_head, reg_pending_clobbers_head, reg_pending_uses_head): Remove. (init_deps_global): Use OBSTACK_ALLOC_REG_SET. * sched-ebb.c: Do not include basic-block.h. * sched-rgn.c: Likewise. * tree-if-conv.c (get_loop_body_in_if_conv_order): Use BITMAP_XFREE. * tree-outof-ssa.c (perform_edge_inserts): Use BITMAP_XFREE. * tree-sra.c (decide_instantiations): Adjust bitmap initialization. * tree-ssa-dce.c: Include obstack.h. * tree-ssa-pre.c (grand_bitmap_obstack): Make a bitmap_obstack. (value_insert_into_set_bitmap): Remove useless bitmap_clear. (bitmap_set_new): Likewise. (init_pre): Initialize bitmap obstack. (fini_pre): Release bitmap obstack. * tree-ssanames.c (ssa_names_to_rewrite): Make static. (marked_for_rewrite_p): ssa_names_to_rewrite is never NULL. (mark_for_rewrite, unmark_for_rewrite): Likewise. (marked_ssa_names): Likewise. (init_ssanames): Use BITMAP_XMALLOC. (fini_ssanames): Use BITMAP_XFREE. * web.c: Include obstack.h From-SVN: r91009
2004-11-22 13:23:59 +01:00
#include "obstack.h"
#include "basic-block.h"
#include "output.h"
#include "df.h"
#include "function.h"
/* This entry is allocated for each reference in the insn stream. */
struct web_entry
{
/* Pointer to the parent in the union/find tree. */
struct web_entry *pred;
/* Newly assigned register to the entry. Set only for roots. */
rtx reg;
};
static struct web_entry *unionfind_root (struct web_entry *);
static void unionfind_union (struct web_entry *, struct web_entry *);
static void union_defs (struct df *, struct ref *, struct web_entry *,
struct web_entry *);
rtl.def (ADDRESSOF): Remove. * rtl.def (ADDRESSOF): Remove. * alias.c (rtx_equal_for_memref_p): Don't handle addressof. (find_base_term, memrefs_conflict_p): Likewise. * cse.c (fixed_base_plus_p, find_best_addr: Likewise. (fold_rtx, cse_insn, set_live_p): Likewise. * dwarf2out.c (mem_loc_descriptor): Likewise. (add_location_or_const_value_attribute): Likewise. * emit-rtl.c (copy_insn_1): Likewise. * explow.c (memory_address): Likewise. * expmed.c (store_split_bit_field): Likewise. * expr.c (expand_expr_real_1): Likewise. * function.c (instantiate_decl (instantiate_virtual_regs_1, fix_lexical_addr): Likewise. * genrecog.c (preds, validate_pattern): Likewise. * integrate.c (copy_rtx_and_substitute): Likewise. * recog.c (general_operand, register_operand): Likewise. (memory_address_p): Likwise. * reload1.c (eliminate_regs, elimination_effects): Likewise. * rtl.c (copy_rtx): Likewise. * rtlanal.c (rtx_unstable_p, rtx_varies_p): Likewise. (rtx_addr_can_trap_p, nonzero_address_p, address_cost): Likewise. * rtlhooks.c (gen_lowpart_general): Likewise. * stmt.c (expand_asm_operands): Likewise. * web.c (entry_register, replace_ref, web_main): Likewise. * config/alpha/alpha.c (input_operand, alpha_legitimate_address_p, alpha_expand_block_move, alpha_expand_block_clear): Likewise. * config/arm/arm.c (thumb_rtx_costs): Likewise. * config/c4x/c4x.c (c4x_valid_operands): Likewise. * config/frv/frv.c (move_destination_operand, move_source_operand, condexec_dest_operand, condexec_source_operand, condexec_memory_operand): Likewise. * config/h8300/h8300.h (PREDICATE_CODES): Likewise. * config/ia64/ia64.c (general_xfmode_operand): Likewise. (destination_xfmode_operand): Likewise. * config/mips/mips.h (PREDICATE_CODES): Likewise. * config/mn10300/mn10300.c (mn10300_address_cost_1): Likewise. * config/s390/s390.c (general_s_operand): Likewise. * config/s390/s390.md (mov*): Likewise. * config/sparc/sparc.h (PREDICATE_CODES): Likewise. * c-typeck.c (c_mark_addressable): Don't put_var_into_stack. * expr.c (expand_expr_real_1): Likewise. * stmt.c (expand_decl): Likewise. * config/c4x/c4x.c (c4x_expand_builtin): Likewise. * function.c (struct fixup_replacement, struct insns_for_mem_entry, postponed_insns, put_var_into_stack, put_reg_into_stack, schedule_fixup_var_refs, fixup_var_refs, find_fixup_replacement, fixup_var_refs_insns, fixup_var_refs_insns_with_hash, fixup_var_refs_insn, fixup_var_refs_1, fixup_memory_subreg, walk_fixup_memory_subreg, fixup_stack_1, optimize_bit_field, gen_mem_addressof, flush_addressof, put_addressof_into_stack, purge_bitfield_addressof_replacements, purge_addressof_replacements, purge_addressof_1, insns_for_mem_hash, insns_for_mem_comp, struct insns_for_mem_walk_info, insns_for_mem_walk, compute_insns_for_mem, is_addressof, purge_addressof, setjmp_protect, setjmp_protect_args): Remove. (push_function_context_to): Don't handle var_refs_queue. (pop_function_context_from, free_after_compilation): Likewise. (instantiate_virtual_regs): Don't handle parm_reg_stack_loc. (assign_parms, allocate_struct_function): Likewise. (use_register_for_decl): New. (expand_function_end): Don't setjmp_protect. * function.h (struct emit_status): Update commentary. (struct function): Remove x_max_parm_reg, x_parm_reg_stack_loc. (max_parm_reg, parm_reg_stack_loc): Remove. * passes.c (DFI_addressof): Remove. (dump_file_info): Remove addressof. (rest_of_handle_addressof): Remove. (rest_of_compilation): Don't call it. * rtl.h (ADDRESSOF_REGNO, ADDRESSOF_DECL): Remove. * stmt.c (expand_decl): Use use_register_for_decl. * tree.h: Update decls. * web.c (mark_addressof): Remove. * doc/invoke.texi (-dF): Remove. ada/ * utils2.c (gnat_mark_addressable): Don't put_var_into_stack. cp/ * typeck.c (cxx_mark_addressable): Don't put_var_into_stack. fortran/ * f95-lang.c (gfc_mark_addressable): Don't put_var_into_stack. treelang/ * treetree.c (tree_mark_addressable): Don't put_var_into_stack. From-SVN: r84072
2004-07-04 10:07:15 +02:00
static rtx entry_register (struct web_entry *, struct ref *, char *);
static void replace_ref (struct ref *, rtx);
/* Find the root of unionfind tree (the representative of set). */
static struct web_entry *
unionfind_root (struct web_entry *element)
{
struct web_entry *element1 = element, *element2;
while (element->pred)
element = element->pred;
while (element1->pred)
{
element2 = element1->pred;
element1->pred = element;
element1 = element2;
}
return element;
}
/* Union sets. */
static void
unionfind_union (struct web_entry *first, struct web_entry *second)
{
first = unionfind_root (first);
second = unionfind_root (second);
if (first == second)
return;
second->pred = first;
}
/* For each use, all possible defs reaching it must come in the same
register, union them. */
static void
union_defs (struct df *df, struct ref *use, struct web_entry *def_entry,
struct web_entry *use_entry)
{
rtx insn = DF_REF_INSN (use);
struct df_link *link = DF_REF_CHAIN (use);
struct df_link *use_link = DF_INSN_USES (df, insn);
struct df_link *def_link = DF_INSN_DEFS (df, insn);
rtx set = single_set (insn);
/* Some instructions may use match_dup for their operands. In case the
operands are dead, we will assign them different pseudos, creating
invalid instructions, so union all uses of the same operand for each
insn. */
while (use_link)
{
if (use != use_link->ref
&& DF_REF_REAL_REG (use) == DF_REF_REAL_REG (use_link->ref))
unionfind_union (use_entry + DF_REF_ID (use),
use_entry + DF_REF_ID (use_link->ref));
use_link = use_link->next;
}
/* Recognize trivial noop moves and attempt to keep them as noop.
While most of noop moves should be removed, we still keep some
of them at libcall boundaries and such. */
if (set
&& SET_SRC (set) == DF_REF_REG (use)
&& SET_SRC (set) == SET_DEST (set))
{
while (def_link)
{
if (DF_REF_REAL_REG (use) == DF_REF_REAL_REG (def_link->ref))
unionfind_union (use_entry + DF_REF_ID (use),
def_entry + DF_REF_ID (def_link->ref));
def_link = def_link->next;
}
}
while (link)
{
unionfind_union (use_entry + DF_REF_ID (use),
def_entry + DF_REF_ID (link->ref));
link = link->next;
}
/* A READ_WRITE use requires the corresponding def to be in the same
register. Find it and union. */
if (use->flags & DF_REF_READ_WRITE)
{
struct df_link *link = DF_INSN_DEFS (df, DF_REF_INSN (use));
while (link)
{
if (DF_REF_REAL_REG (link->ref) == DF_REF_REAL_REG (use))
unionfind_union (use_entry + DF_REF_ID (use),
def_entry + DF_REF_ID (link->ref));
link = link->next;
}
}
}
/* Find the corresponding register for the given entry. */
static rtx
rtl.def (ADDRESSOF): Remove. * rtl.def (ADDRESSOF): Remove. * alias.c (rtx_equal_for_memref_p): Don't handle addressof. (find_base_term, memrefs_conflict_p): Likewise. * cse.c (fixed_base_plus_p, find_best_addr: Likewise. (fold_rtx, cse_insn, set_live_p): Likewise. * dwarf2out.c (mem_loc_descriptor): Likewise. (add_location_or_const_value_attribute): Likewise. * emit-rtl.c (copy_insn_1): Likewise. * explow.c (memory_address): Likewise. * expmed.c (store_split_bit_field): Likewise. * expr.c (expand_expr_real_1): Likewise. * function.c (instantiate_decl (instantiate_virtual_regs_1, fix_lexical_addr): Likewise. * genrecog.c (preds, validate_pattern): Likewise. * integrate.c (copy_rtx_and_substitute): Likewise. * recog.c (general_operand, register_operand): Likewise. (memory_address_p): Likwise. * reload1.c (eliminate_regs, elimination_effects): Likewise. * rtl.c (copy_rtx): Likewise. * rtlanal.c (rtx_unstable_p, rtx_varies_p): Likewise. (rtx_addr_can_trap_p, nonzero_address_p, address_cost): Likewise. * rtlhooks.c (gen_lowpart_general): Likewise. * stmt.c (expand_asm_operands): Likewise. * web.c (entry_register, replace_ref, web_main): Likewise. * config/alpha/alpha.c (input_operand, alpha_legitimate_address_p, alpha_expand_block_move, alpha_expand_block_clear): Likewise. * config/arm/arm.c (thumb_rtx_costs): Likewise. * config/c4x/c4x.c (c4x_valid_operands): Likewise. * config/frv/frv.c (move_destination_operand, move_source_operand, condexec_dest_operand, condexec_source_operand, condexec_memory_operand): Likewise. * config/h8300/h8300.h (PREDICATE_CODES): Likewise. * config/ia64/ia64.c (general_xfmode_operand): Likewise. (destination_xfmode_operand): Likewise. * config/mips/mips.h (PREDICATE_CODES): Likewise. * config/mn10300/mn10300.c (mn10300_address_cost_1): Likewise. * config/s390/s390.c (general_s_operand): Likewise. * config/s390/s390.md (mov*): Likewise. * config/sparc/sparc.h (PREDICATE_CODES): Likewise. * c-typeck.c (c_mark_addressable): Don't put_var_into_stack. * expr.c (expand_expr_real_1): Likewise. * stmt.c (expand_decl): Likewise. * config/c4x/c4x.c (c4x_expand_builtin): Likewise. * function.c (struct fixup_replacement, struct insns_for_mem_entry, postponed_insns, put_var_into_stack, put_reg_into_stack, schedule_fixup_var_refs, fixup_var_refs, find_fixup_replacement, fixup_var_refs_insns, fixup_var_refs_insns_with_hash, fixup_var_refs_insn, fixup_var_refs_1, fixup_memory_subreg, walk_fixup_memory_subreg, fixup_stack_1, optimize_bit_field, gen_mem_addressof, flush_addressof, put_addressof_into_stack, purge_bitfield_addressof_replacements, purge_addressof_replacements, purge_addressof_1, insns_for_mem_hash, insns_for_mem_comp, struct insns_for_mem_walk_info, insns_for_mem_walk, compute_insns_for_mem, is_addressof, purge_addressof, setjmp_protect, setjmp_protect_args): Remove. (push_function_context_to): Don't handle var_refs_queue. (pop_function_context_from, free_after_compilation): Likewise. (instantiate_virtual_regs): Don't handle parm_reg_stack_loc. (assign_parms, allocate_struct_function): Likewise. (use_register_for_decl): New. (expand_function_end): Don't setjmp_protect. * function.h (struct emit_status): Update commentary. (struct function): Remove x_max_parm_reg, x_parm_reg_stack_loc. (max_parm_reg, parm_reg_stack_loc): Remove. * passes.c (DFI_addressof): Remove. (dump_file_info): Remove addressof. (rest_of_handle_addressof): Remove. (rest_of_compilation): Don't call it. * rtl.h (ADDRESSOF_REGNO, ADDRESSOF_DECL): Remove. * stmt.c (expand_decl): Use use_register_for_decl. * tree.h: Update decls. * web.c (mark_addressof): Remove. * doc/invoke.texi (-dF): Remove. ada/ * utils2.c (gnat_mark_addressable): Don't put_var_into_stack. cp/ * typeck.c (cxx_mark_addressable): Don't put_var_into_stack. fortran/ * f95-lang.c (gfc_mark_addressable): Don't put_var_into_stack. treelang/ * treetree.c (tree_mark_addressable): Don't put_var_into_stack. From-SVN: r84072
2004-07-04 10:07:15 +02:00
entry_register (struct web_entry *entry, struct ref *ref, char *used)
{
struct web_entry *root;
rtx reg, newreg;
/* Find the corresponding web and see if it has been visited. */
root = unionfind_root (entry);
if (root->reg)
return root->reg;
/* We are seeing this web for the first time, do the assignment. */
reg = DF_REF_REAL_REG (ref);
/* In case the original register is already assigned, generate new one. */
if (!used[REGNO (reg)])
newreg = reg, used[REGNO (reg)] = 1;
else if (REG_USERVAR_P (reg) && 0/*&& !flag_messy_debugging*/)
{
newreg = reg;
if (dump_file)
fprintf (dump_file,
"New web forced to keep reg=%i (user variable)\n",
REGNO (reg));
}
else
{
newreg = gen_reg_rtx (GET_MODE (reg));
REG_USERVAR_P (newreg) = REG_USERVAR_P (reg);
REG_POINTER (newreg) = REG_POINTER (reg);
REG_ATTRS (newreg) = REG_ATTRS (reg);
if (dump_file)
fprintf (dump_file, "Web oldreg=%i newreg=%i\n", REGNO (reg),
REGNO (newreg));
}
root->reg = newreg;
return newreg;
}
/* Replace the reference by REG. */
static void
replace_ref (struct ref *ref, rtx reg)
{
rtx oldreg = DF_REF_REAL_REG (ref);
rtx *loc = DF_REF_REAL_LOC (ref);
if (oldreg == reg)
return;
if (dump_file)
fprintf (dump_file, "Updating insn %i (%i->%i)\n",
INSN_UID (DF_REF_INSN (ref)), REGNO (oldreg), REGNO (reg));
*loc = reg;
}
/* Main entry point. */
void
web_main (void)
{
struct df *df;
struct web_entry *def_entry;
struct web_entry *use_entry;
unsigned int i;
int max = max_reg_num ();
char *used;
df = df_init ();
df_analyze (df, 0, DF_UD_CHAIN | DF_EQUIV_NOTES);
def_entry = xcalloc (df->n_defs, sizeof (struct web_entry));
use_entry = xcalloc (df->n_uses, sizeof (struct web_entry));
used = xcalloc (max, sizeof (char));
if (dump_file)
df_dump (df, DF_UD_CHAIN | DF_DU_CHAIN, dump_file);
/* Produce the web. */
for (i = 0; i < df->n_uses; i++)
union_defs (df, df->uses[i], def_entry, use_entry);
/* Update the instruction stream, allocating new registers for split pseudos
in progress. */
for (i = 0; i < df->n_uses; i++)
replace_ref (df->uses[i], entry_register (use_entry + i, df->uses[i],
rtl.def (ADDRESSOF): Remove. * rtl.def (ADDRESSOF): Remove. * alias.c (rtx_equal_for_memref_p): Don't handle addressof. (find_base_term, memrefs_conflict_p): Likewise. * cse.c (fixed_base_plus_p, find_best_addr: Likewise. (fold_rtx, cse_insn, set_live_p): Likewise. * dwarf2out.c (mem_loc_descriptor): Likewise. (add_location_or_const_value_attribute): Likewise. * emit-rtl.c (copy_insn_1): Likewise. * explow.c (memory_address): Likewise. * expmed.c (store_split_bit_field): Likewise. * expr.c (expand_expr_real_1): Likewise. * function.c (instantiate_decl (instantiate_virtual_regs_1, fix_lexical_addr): Likewise. * genrecog.c (preds, validate_pattern): Likewise. * integrate.c (copy_rtx_and_substitute): Likewise. * recog.c (general_operand, register_operand): Likewise. (memory_address_p): Likwise. * reload1.c (eliminate_regs, elimination_effects): Likewise. * rtl.c (copy_rtx): Likewise. * rtlanal.c (rtx_unstable_p, rtx_varies_p): Likewise. (rtx_addr_can_trap_p, nonzero_address_p, address_cost): Likewise. * rtlhooks.c (gen_lowpart_general): Likewise. * stmt.c (expand_asm_operands): Likewise. * web.c (entry_register, replace_ref, web_main): Likewise. * config/alpha/alpha.c (input_operand, alpha_legitimate_address_p, alpha_expand_block_move, alpha_expand_block_clear): Likewise. * config/arm/arm.c (thumb_rtx_costs): Likewise. * config/c4x/c4x.c (c4x_valid_operands): Likewise. * config/frv/frv.c (move_destination_operand, move_source_operand, condexec_dest_operand, condexec_source_operand, condexec_memory_operand): Likewise. * config/h8300/h8300.h (PREDICATE_CODES): Likewise. * config/ia64/ia64.c (general_xfmode_operand): Likewise. (destination_xfmode_operand): Likewise. * config/mips/mips.h (PREDICATE_CODES): Likewise. * config/mn10300/mn10300.c (mn10300_address_cost_1): Likewise. * config/s390/s390.c (general_s_operand): Likewise. * config/s390/s390.md (mov*): Likewise. * config/sparc/sparc.h (PREDICATE_CODES): Likewise. * c-typeck.c (c_mark_addressable): Don't put_var_into_stack. * expr.c (expand_expr_real_1): Likewise. * stmt.c (expand_decl): Likewise. * config/c4x/c4x.c (c4x_expand_builtin): Likewise. * function.c (struct fixup_replacement, struct insns_for_mem_entry, postponed_insns, put_var_into_stack, put_reg_into_stack, schedule_fixup_var_refs, fixup_var_refs, find_fixup_replacement, fixup_var_refs_insns, fixup_var_refs_insns_with_hash, fixup_var_refs_insn, fixup_var_refs_1, fixup_memory_subreg, walk_fixup_memory_subreg, fixup_stack_1, optimize_bit_field, gen_mem_addressof, flush_addressof, put_addressof_into_stack, purge_bitfield_addressof_replacements, purge_addressof_replacements, purge_addressof_1, insns_for_mem_hash, insns_for_mem_comp, struct insns_for_mem_walk_info, insns_for_mem_walk, compute_insns_for_mem, is_addressof, purge_addressof, setjmp_protect, setjmp_protect_args): Remove. (push_function_context_to): Don't handle var_refs_queue. (pop_function_context_from, free_after_compilation): Likewise. (instantiate_virtual_regs): Don't handle parm_reg_stack_loc. (assign_parms, allocate_struct_function): Likewise. (use_register_for_decl): New. (expand_function_end): Don't setjmp_protect. * function.h (struct emit_status): Update commentary. (struct function): Remove x_max_parm_reg, x_parm_reg_stack_loc. (max_parm_reg, parm_reg_stack_loc): Remove. * passes.c (DFI_addressof): Remove. (dump_file_info): Remove addressof. (rest_of_handle_addressof): Remove. (rest_of_compilation): Don't call it. * rtl.h (ADDRESSOF_REGNO, ADDRESSOF_DECL): Remove. * stmt.c (expand_decl): Use use_register_for_decl. * tree.h: Update decls. * web.c (mark_addressof): Remove. * doc/invoke.texi (-dF): Remove. ada/ * utils2.c (gnat_mark_addressable): Don't put_var_into_stack. cp/ * typeck.c (cxx_mark_addressable): Don't put_var_into_stack. fortran/ * f95-lang.c (gfc_mark_addressable): Don't put_var_into_stack. treelang/ * treetree.c (tree_mark_addressable): Don't put_var_into_stack. From-SVN: r84072
2004-07-04 10:07:15 +02:00
used));
for (i = 0; i < df->n_defs; i++)
replace_ref (df->defs[i], entry_register (def_entry + i, df->defs[i],
rtl.def (ADDRESSOF): Remove. * rtl.def (ADDRESSOF): Remove. * alias.c (rtx_equal_for_memref_p): Don't handle addressof. (find_base_term, memrefs_conflict_p): Likewise. * cse.c (fixed_base_plus_p, find_best_addr: Likewise. (fold_rtx, cse_insn, set_live_p): Likewise. * dwarf2out.c (mem_loc_descriptor): Likewise. (add_location_or_const_value_attribute): Likewise. * emit-rtl.c (copy_insn_1): Likewise. * explow.c (memory_address): Likewise. * expmed.c (store_split_bit_field): Likewise. * expr.c (expand_expr_real_1): Likewise. * function.c (instantiate_decl (instantiate_virtual_regs_1, fix_lexical_addr): Likewise. * genrecog.c (preds, validate_pattern): Likewise. * integrate.c (copy_rtx_and_substitute): Likewise. * recog.c (general_operand, register_operand): Likewise. (memory_address_p): Likwise. * reload1.c (eliminate_regs, elimination_effects): Likewise. * rtl.c (copy_rtx): Likewise. * rtlanal.c (rtx_unstable_p, rtx_varies_p): Likewise. (rtx_addr_can_trap_p, nonzero_address_p, address_cost): Likewise. * rtlhooks.c (gen_lowpart_general): Likewise. * stmt.c (expand_asm_operands): Likewise. * web.c (entry_register, replace_ref, web_main): Likewise. * config/alpha/alpha.c (input_operand, alpha_legitimate_address_p, alpha_expand_block_move, alpha_expand_block_clear): Likewise. * config/arm/arm.c (thumb_rtx_costs): Likewise. * config/c4x/c4x.c (c4x_valid_operands): Likewise. * config/frv/frv.c (move_destination_operand, move_source_operand, condexec_dest_operand, condexec_source_operand, condexec_memory_operand): Likewise. * config/h8300/h8300.h (PREDICATE_CODES): Likewise. * config/ia64/ia64.c (general_xfmode_operand): Likewise. (destination_xfmode_operand): Likewise. * config/mips/mips.h (PREDICATE_CODES): Likewise. * config/mn10300/mn10300.c (mn10300_address_cost_1): Likewise. * config/s390/s390.c (general_s_operand): Likewise. * config/s390/s390.md (mov*): Likewise. * config/sparc/sparc.h (PREDICATE_CODES): Likewise. * c-typeck.c (c_mark_addressable): Don't put_var_into_stack. * expr.c (expand_expr_real_1): Likewise. * stmt.c (expand_decl): Likewise. * config/c4x/c4x.c (c4x_expand_builtin): Likewise. * function.c (struct fixup_replacement, struct insns_for_mem_entry, postponed_insns, put_var_into_stack, put_reg_into_stack, schedule_fixup_var_refs, fixup_var_refs, find_fixup_replacement, fixup_var_refs_insns, fixup_var_refs_insns_with_hash, fixup_var_refs_insn, fixup_var_refs_1, fixup_memory_subreg, walk_fixup_memory_subreg, fixup_stack_1, optimize_bit_field, gen_mem_addressof, flush_addressof, put_addressof_into_stack, purge_bitfield_addressof_replacements, purge_addressof_replacements, purge_addressof_1, insns_for_mem_hash, insns_for_mem_comp, struct insns_for_mem_walk_info, insns_for_mem_walk, compute_insns_for_mem, is_addressof, purge_addressof, setjmp_protect, setjmp_protect_args): Remove. (push_function_context_to): Don't handle var_refs_queue. (pop_function_context_from, free_after_compilation): Likewise. (instantiate_virtual_regs): Don't handle parm_reg_stack_loc. (assign_parms, allocate_struct_function): Likewise. (use_register_for_decl): New. (expand_function_end): Don't setjmp_protect. * function.h (struct emit_status): Update commentary. (struct function): Remove x_max_parm_reg, x_parm_reg_stack_loc. (max_parm_reg, parm_reg_stack_loc): Remove. * passes.c (DFI_addressof): Remove. (dump_file_info): Remove addressof. (rest_of_handle_addressof): Remove. (rest_of_compilation): Don't call it. * rtl.h (ADDRESSOF_REGNO, ADDRESSOF_DECL): Remove. * stmt.c (expand_decl): Use use_register_for_decl. * tree.h: Update decls. * web.c (mark_addressof): Remove. * doc/invoke.texi (-dF): Remove. ada/ * utils2.c (gnat_mark_addressable): Don't put_var_into_stack. cp/ * typeck.c (cxx_mark_addressable): Don't put_var_into_stack. fortran/ * f95-lang.c (gfc_mark_addressable): Don't put_var_into_stack. treelang/ * treetree.c (tree_mark_addressable): Don't put_var_into_stack. From-SVN: r84072
2004-07-04 10:07:15 +02:00
used));
/* Dataflow information is corrupt here, but it can be easily updated
by creating new entries for new registers and updates or calling
df_insns_modify. */
free (def_entry);
free (use_entry);
free (used);
df_finish (df);
}