2002-09-10 Matthias Klose <doko@debian.org>

[pf3gnuchains/gcc-fork.git] / gcc / genpeep.c

diff --git a/gcc/genpeep.c b/gcc/genpeep.c
index 3c45cee..036f688 100644 (file)
--- a/gcc/genpeep.c
+++ b/gcc/genpeep.c
@@ -1,35 +1,31 @@
 /* Generate code from machine description to perform peephole optimizations.
-   Copyright (C) 1987, 89, 92, 97, 98, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1987, 1989, 1992, 1997, 1998,
+   1999, 2000 Free Software Foundation, Inc.
 
-This file is part of GNU CC.
+This file is part of GCC.
 
-GNU CC 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 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.
 
-GNU CC 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.
+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 GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+along with GCC; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.  */
 
 
 #include "hconfig.h"
 #include "system.h"
 #include "rtl.h"
-#include "obstack.h"
 #include "errors.h"
+#include "gensupport.h"
 
-static struct obstack obstack;
-struct obstack *rtl_obstack = &obstack;
-
-#define obstack_chunk_alloc xmalloc
-#define obstack_chunk_free free
 
 /* While tree-walking an instruction pattern, we keep a chain
    of these `struct link's to record how to get down to the
@@ -101,7 +97,7 @@ gen_peephole (peep)
       /* Walk the insn's pattern, remembering at all times the path
         down to the walking point.  */
 
-      match_rtx (XVECEXP (peep, 0, i), NULL_PTR, insn_code_number);
+      match_rtx (XVECEXP (peep, 0, i), NULL, insn_code_number);
     }
 
   /* We get this far if the pattern matches.
@@ -123,7 +119,7 @@ gen_peephole (peep)
   printf ("  if (want_jump && GET_CODE (ins1) != JUMP_INSN)\n");
   printf ("    {\n");
   printf ("      rtx insn2 = emit_jump_insn_before (PATTERN (ins1), ins1);\n");
-  printf ("      delete_insn (ins1);\n");
+  printf ("      delete_related_insns (ins1);\n");
   printf ("      ins1 = ins2;\n");
   printf ("    }\n");
 #endif
@@ -150,10 +146,10 @@ match_rtx (x, path, fail_label)
      struct link *path;
      int fail_label;
 {
-  register RTX_CODE code;
-  register int i;
-  register int len;
-  register const char *fmt;
+  RTX_CODE code;
+  int i;
+  int len;
+  const char *fmt;
   struct link link;
 
   if (x == 0)
@@ -368,36 +364,10 @@ static void
 print_code (code)
      RTX_CODE code;
 {
-  register const char *p1;
+  const char *p1;
   for (p1 = GET_RTX_NAME (code); *p1; p1++)
     putchar (TOUPPER(*p1));
 }
-\f
-PTR
-xmalloc (size)
-  size_t size;
-{
-  register PTR val = (PTR) malloc (size);
-
-  if (val == 0)
-    fatal ("virtual memory exhausted");
-  return val;
-}
-
-PTR
-xrealloc (old, size)
-  PTR old;
-  size_t size;
-{
-  register PTR ptr;
-  if (old)
-    ptr = (PTR) realloc (old, size);
-  else
-    ptr = (PTR) malloc (size);
-  if (!ptr)
-    fatal ("virtual memory exhausted");
-  return ptr;
-}
 
 extern int main PARAMS ((int, char **));
 
@@ -407,24 +377,16 @@ main (argc, argv)
      char **argv;
 {
   rtx desc;
-  FILE *infile;
-  register int c;
 
   max_opno = -1;
 
   progname = "genpeep";
-  obstack_init (rtl_obstack);
 
   if (argc <= 1)
-    fatal ("No input file name.");
+    fatal ("no input file name");
 
-  infile = fopen (argv[1], "r");
-  if (infile == 0)
-    {
-      perror (argv[1]);
-      return (FATAL_EXIT_CODE);
-    }
-  read_rtx_filename = argv[1];
+  if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
+    return (FATAL_EXIT_CODE);
 
   printf ("/* Generated automatically by the program `genpeep'\n\
 from the machine description file `md'.  */\n\n");
@@ -457,20 +419,21 @@ from the machine description file `md'.  */\n\n");
 
   while (1)
     {
-      c = read_skip_spaces (infile);
-      if (c == EOF)
+      int line_no, rtx_number = 0;
+
+      desc = read_md_rtx (&line_no, &rtx_number);
+      if (desc == NULL)
        break;
-      ungetc (c, infile);
 
-      desc = read_rtx (infile);
-      if (GET_CODE (desc) == DEFINE_PEEPHOLE)
+       if (GET_CODE (desc) == DEFINE_PEEPHOLE)
        {
          gen_peephole (desc);
          insn_code_number++;
        }
       if (GET_CODE (desc) == DEFINE_INSN
          || GET_CODE (desc) == DEFINE_EXPAND
-         || GET_CODE (desc) == DEFINE_SPLIT)
+         || GET_CODE (desc) == DEFINE_SPLIT
+         || GET_CODE (desc) == DEFINE_PEEPHOLE2)
        {
          insn_code_number++;
        }