Tom Wood
parent
4217c4568b
commit
41299f4171
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@ -0,0 +1,251 @@
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/* Generate attribute information (insn-attr.h) from machine description.
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Copyright (C) 1989 Free Software Foundation, Inc.
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Contributed by Richard Kenner (kenner@nyu.edu)
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <stdio.h>
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#include "config.h"
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#include "rtl.h"
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#include "obstack.h"
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static struct obstack obstack;
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struct obstack *rtl_obstack = &obstack;
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#define obstack_chunk_alloc xmalloc
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#define obstack_chunk_free free
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extern void free ();
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extern int atoi ();
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char *xmalloc ();
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static void fatal ();
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void fancy_abort ();
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static void
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write_upcase (str)
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char *str;
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{
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for (; *str; str++)
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if (*str >= 'a' && *str <= 'z')
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printf ("%c", *str - 'a' + 'A');
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else
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printf ("%c", *str);
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}
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static void
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gen_attr (attr)
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rtx attr;
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{
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char *p;
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printf ("#define HAVE_ATTR_%s\n", XSTR (attr, 0));
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/* If numeric attribute, don't need to write an enum. */
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if (*XSTR (attr, 1) == '\0')
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printf ("extern int get_attr_%s ();\n", XSTR (attr, 0));
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else
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{
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printf ("enum attr_%s {", XSTR (attr, 0));
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write_upcase (XSTR (attr, 0));
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printf ("_");
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for (p = XSTR (attr, 1); *p != '\0'; p++)
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{
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if (*p == ',')
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{
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printf (", ");
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write_upcase (XSTR (attr, 0));
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printf ("_");
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}
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else if (*p >= 'a' && *p <= 'z')
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printf ("%c", *p - 'a' + 'A');
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else
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printf ("%c", *p);
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}
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printf ("};\n");
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printf ("extern enum attr_%s get_attr_%s ();\n\n",
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XSTR (attr, 0), XSTR (attr, 0));
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}
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/* If `length' attribute, write additional function definitions and define
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variables used by `insn_current_length'. */
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if (! strcmp (XSTR (attr, 0), "length"))
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{
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printf ("extern void init_lengths ();\n");
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printf ("extern void shorten_branches ();\n");
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printf ("extern int insn_default_length ();\n");
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printf ("extern int insn_variable_length_p ();\n");
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printf ("extern int insn_current_length ();\n\n");
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printf ("extern int *insn_addresses;\n");
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printf ("extern int insn_current_address;\n\n");
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}
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}
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static void
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write_units ()
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{
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printf ("#define INSN_SCHEDULING\n\n");
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printf ("extern int result_ready_cost ();\n");
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printf ("extern int function_units_used ();\n\n");
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printf ("extern struct function_unit_desc\n");
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printf ("{\n");
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printf (" char *name;\n");
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printf (" int bitmask;\n");
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printf (" int multiplicity;\n");
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printf (" int simultaneity;\n");
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printf (" int default_cost;\n");
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printf (" int (*ready_cost_function) ();\n");
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printf (" int (*conflict_cost_function) ();\n");
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printf ("} function_units[];\n\n");
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}
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char *
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xmalloc (size)
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unsigned size;
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{
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register char *val = (char *) malloc (size);
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if (val == 0)
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fatal ("virtual memory exhausted");
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return val;
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}
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char *
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xrealloc (ptr, size)
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char *ptr;
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unsigned size;
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{
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char * result = (char *) realloc (ptr, size);
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if (!result)
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fatal ("virtual memory exhausted");
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return result;
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}
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static void
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fatal (s, a1, a2)
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char *s;
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{
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fprintf (stderr, "genattr: ");
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fprintf (stderr, s, a1, a2);
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fprintf (stderr, "\n");
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exit (FATAL_EXIT_CODE);
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}
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/* More 'friendly' abort that prints the line and file.
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config.h can #define abort fancy_abort if you like that sort of thing. */
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void
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fancy_abort ()
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{
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fatal ("Internal gcc abort.");
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}
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int
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main (argc, argv)
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int argc;
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char **argv;
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{
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rtx desc;
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FILE *infile;
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extern rtx read_rtx ();
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register int c;
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int have_delay = 0;
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int have_annul_true = 0;
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int have_annul_false = 0;
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int have_units = 0;
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int i;
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obstack_init (rtl_obstack);
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if (argc <= 1)
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fatal ("No input file name.");
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infile = fopen (argv[1], "r");
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if (infile == 0)
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{
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perror (argv[1]);
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exit (FATAL_EXIT_CODE);
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}
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init_rtl ();
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printf ("/* Generated automatically by the program `genattr'\n\
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from the machine description file `md'. */\n\n");
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/* For compatibility, define the attribute `alternative', which is just
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a reference to the variable `which_alternative'. */
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printf ("#define HAVE_ATTR_alternative\n");
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printf ("#define get_attr_alternative(insn) which_alternative\n");
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/* Read the machine description. */
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while (1)
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{
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c = read_skip_spaces (infile);
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if (c == EOF)
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break;
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ungetc (c, infile);
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desc = read_rtx (infile);
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if (GET_CODE (desc) == DEFINE_ATTR)
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gen_attr (desc);
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else if (GET_CODE (desc) == DEFINE_DELAY)
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{
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if (! have_delay)
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{
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printf ("#define DELAY_SLOTS\n");
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printf ("extern int num_delay_slots ();\n");
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printf ("extern int eligible_for_delay ();\n\n");
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have_delay = 1;
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}
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for (i = 0; i < XVECLEN (desc, 1); i += 3)
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{
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if (XVECEXP (desc, 1, i + 1) && ! have_annul_true)
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{
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printf ("#define ANNUL_IFTRUE_SLOTS\n");
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printf ("extern int eligible_for_annul_true ();\n");
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have_annul_true = 1;
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}
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if (XVECEXP (desc, 1, i + 2) && ! have_annul_false)
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{
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printf ("#define ANNUL_IFFALSE_SLOTS\n");
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printf ("extern int eligible_for_annul_false ();\n");
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have_annul_false = 1;
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}
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}
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}
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else if (GET_CODE (desc) == DEFINE_FUNCTION_UNIT && ! have_units)
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{
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have_units = 1;
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write_units ();
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}
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}
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fflush (stdout);
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exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
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/* NOTREACHED */
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return 0;
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}
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File diff suppressed because it is too large
Load Diff
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@ -0,0 +1,159 @@
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/* Generate from machine description:
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- some macros CODE_FOR_... giving the insn_code_number value
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for each of the defined standard insn names.
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Copyright (C) 1987 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <stdio.h>
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#include "config.h"
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#include "rtl.h"
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#include "obstack.h"
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static struct obstack obstack;
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struct obstack *rtl_obstack = &obstack;
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#define obstack_chunk_alloc xmalloc
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#define obstack_chunk_free free
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extern void free ();
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char *xmalloc ();
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static void fatal ();
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void fancy_abort ();
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static int insn_code_number;
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static void
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gen_insn (insn)
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rtx insn;
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{
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/* Don't mention instructions whose names are the null string.
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They are in the machine description just to be recognized. */
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if (strlen (XSTR (insn, 0)) != 0)
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printf (" CODE_FOR_%s = %d,\n", XSTR (insn, 0),
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insn_code_number);
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}
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char *
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xmalloc (size)
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unsigned size;
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{
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register char *val = (char *) malloc (size);
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if (val == 0)
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fatal ("virtual memory exhausted");
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return val;
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}
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char *
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xrealloc (ptr, size)
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char *ptr;
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unsigned size;
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{
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char *result = (char *) realloc (ptr, size);
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if (!result)
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fatal ("virtual memory exhausted");
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return result;
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}
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static void
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fatal (s, a1, a2)
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char *s;
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{
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fprintf (stderr, "gencodes: ");
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fprintf (stderr, s, a1, a2);
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fprintf (stderr, "\n");
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exit (FATAL_EXIT_CODE);
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}
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/* More 'friendly' abort that prints the line and file.
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config.h can #define abort fancy_abort if you like that sort of thing. */
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void
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fancy_abort ()
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{
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fatal ("Internal gcc abort.");
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}
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int
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main (argc, argv)
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int argc;
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char **argv;
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{
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rtx desc;
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FILE *infile;
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extern rtx read_rtx ();
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register int c;
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obstack_init (rtl_obstack);
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if (argc <= 1)
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fatal ("No input file name.");
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infile = fopen (argv[1], "r");
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if (infile == 0)
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{
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perror (argv[1]);
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exit (FATAL_EXIT_CODE);
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}
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init_rtl ();
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printf ("/* Generated automatically by the program `gencodes'\n\
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from the machine description file `md'. */\n\n");
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printf ("#ifndef MAX_INSN_CODE\n\n");
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/* Read the machine description. */
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insn_code_number = 0;
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printf ("enum insn_code {\n");
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while (1)
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{
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c = read_skip_spaces (infile);
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if (c == EOF)
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break;
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ungetc (c, infile);
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desc = read_rtx (infile);
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if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
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{
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gen_insn (desc);
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insn_code_number++;
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}
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if (GET_CODE (desc) == DEFINE_PEEPHOLE
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|| GET_CODE (desc) == DEFINE_SPLIT)
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{
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insn_code_number++;
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}
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}
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printf (" CODE_FOR_nothing };\n");
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printf ("\n#define MAX_INSN_CODE ((int) CODE_FOR_nothing)\n");
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printf ("#endif /* MAX_INSN_CODE */\n");
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fflush (stdout);
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exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
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/* NOTREACHED */
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return 0;
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}
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@ -0,0 +1,405 @@
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/* Generate code from machine description to extract operands from insn as rtl.
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Copyright (C) 1987 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
|
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it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2, or (at your option)
|
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any later version.
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|
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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.
|
||||
|
||||
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <stdio.h>
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#include "config.h"
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#include "rtl.h"
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#include "obstack.h"
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static struct obstack obstack;
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struct obstack *rtl_obstack = &obstack;
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#define obstack_chunk_alloc xmalloc
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#define obstack_chunk_free free
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extern void free ();
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/* Number instruction patterns handled, starting at 0 for first one. */
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static int insn_code_number;
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/* Number the occurrences of MATCH_DUP in each instruction,
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starting at 0 for the first occurrence. */
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static int dup_count;
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/* Record which operand numbers have been seen in the current pattern.
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This table is made longer as needed. */
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static char *operand_seen;
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/* Current allocated length of operand_seen. */
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static int operand_seen_length;
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/* Have we got any peephole patterns yet? */
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static int peephole_seen;
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/* While tree-walking an instruction pattern, we keep a chain
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of these `struct link's to record how to get down to the
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current position. In each one, POS is the operand number,
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and if the operand is a vector VEC is the element number.
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VEC is -1 if the operand is not a vector. */
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struct link
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{
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struct link *next;
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int pos;
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int vecelt;
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};
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static void walk_rtx ();
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static void print_path ();
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char *xmalloc ();
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char *xrealloc ();
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static void fatal ();
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void fancy_abort ();
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static void
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gen_insn (insn)
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rtx insn;
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{
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register int i;
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dup_count = 0;
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/* No operands seen so far in this pattern. */
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bzero (operand_seen, operand_seen_length);
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printf (" case %d:\n", insn_code_number);
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/* Walk the insn's pattern, remembering at all times the path
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down to the walking point. */
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if (XVECLEN (insn, 1) == 1)
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walk_rtx (XVECEXP (insn, 1, 0), 0);
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else
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for (i = XVECLEN (insn, 1) - 1; i >= 0; i--)
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{
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struct link link;
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link.next = 0;
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link.pos = 0;
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link.vecelt = i;
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walk_rtx (XVECEXP (insn, 1, i), &link);
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}
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/* If the operand numbers used in the pattern are not consecutive,
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don't leave an operand uninitialized. */
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for (i = operand_seen_length - 1; i >= 0; i--)
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if (operand_seen[i])
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break;
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for (; i >= 0; i--)
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if (!operand_seen[i])
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{
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printf (" recog_operand[%d] = const0_rtx;\n", i);
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printf (" recog_operand_loc[%d] = &junk;\n", i);
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}
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printf (" break;\n");
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}
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/* Record that we have seen an operand with number OPNO in this pattern. */
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static void
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mark_operand_seen (opno)
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int opno;
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{
|
||||
if (opno >= operand_seen_length)
|
||||
{
|
||||
operand_seen_length *= 2;
|
||||
operand_seen = (char *) xrealloc (operand_seen_length);
|
||||
}
|
||||
|
||||
operand_seen[opno] = 1;
|
||||
}
|
||||
|
||||
static void
|
||||
walk_rtx (x, path)
|
||||
rtx x;
|
||||
struct link *path;
|
||||
{
|
||||
register RTX_CODE code;
|
||||
register int i;
|
||||
register int len;
|
||||
register char *fmt;
|
||||
struct link link;
|
||||
|
||||
if (x == 0)
|
||||
return;
|
||||
|
||||
code = GET_CODE (x);
|
||||
|
||||
switch (code)
|
||||
{
|
||||
case PC:
|
||||
case CC0:
|
||||
case CONST_INT:
|
||||
case SYMBOL_REF:
|
||||
return;
|
||||
|
||||
case MATCH_OPERAND:
|
||||
case MATCH_SCRATCH:
|
||||
mark_operand_seen (XINT (x, 0));
|
||||
printf (" recog_operand[%d] = *(recog_operand_loc[%d]\n = &",
|
||||
XINT (x, 0), XINT (x, 0));
|
||||
print_path (path);
|
||||
printf (");\n");
|
||||
break;
|
||||
|
||||
case MATCH_DUP:
|
||||
case MATCH_OP_DUP:
|
||||
printf (" recog_dup_loc[%d] = &", dup_count);
|
||||
print_path (path);
|
||||
printf (";\n");
|
||||
printf (" recog_dup_num[%d] = %d;\n", dup_count, XINT (x, 0));
|
||||
dup_count++;
|
||||
break;
|
||||
|
||||
case MATCH_OPERATOR:
|
||||
mark_operand_seen (XINT (x, 0));
|
||||
printf (" recog_operand[%d] = *(recog_operand_loc[%d]\n = &",
|
||||
XINT (x, 0), XINT (x, 0));
|
||||
print_path (path);
|
||||
printf (");\n");
|
||||
link.next = path;
|
||||
link.vecelt = -1;
|
||||
for (i = XVECLEN (x, 2) - 1; i >= 0; i--)
|
||||
{
|
||||
link.pos = i;
|
||||
walk_rtx (XVECEXP (x, 2, i), &link);
|
||||
}
|
||||
return;
|
||||
|
||||
case MATCH_PARALLEL:
|
||||
mark_operand_seen (XINT (x, 0));
|
||||
printf (" recog_operand[%d] = *(recog_operand_loc[%d]\n = &",
|
||||
XINT (x, 0), XINT (x, 0));
|
||||
print_path (path);
|
||||
printf (");\n");
|
||||
link.next = path;
|
||||
link.pos = 0;
|
||||
for (i = XVECLEN (x, 2) - 1; i >= 0; i--)
|
||||
{
|
||||
link.vecelt = i;
|
||||
walk_rtx (XVECEXP (x, 2, i), &link);
|
||||
}
|
||||
return;
|
||||
|
||||
case ADDRESS:
|
||||
walk_rtx (XEXP (x, 0), path);
|
||||
return;
|
||||
}
|
||||
|
||||
link.next = path;
|
||||
link.vecelt = -1;
|
||||
fmt = GET_RTX_FORMAT (code);
|
||||
len = GET_RTX_LENGTH (code);
|
||||
for (i = 0; i < len; i++)
|
||||
{
|
||||
link.pos = i;
|
||||
if (fmt[i] == 'e' || fmt[i] == 'u')
|
||||
{
|
||||
walk_rtx (XEXP (x, i), &link);
|
||||
}
|
||||
else if (fmt[i] == 'E')
|
||||
{
|
||||
int j;
|
||||
for (j = XVECLEN (x, i) - 1; j >= 0; j--)
|
||||
{
|
||||
link.vecelt = j;
|
||||
walk_rtx (XVECEXP (x, i, j), &link);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Given a PATH, representing a path down the instruction's
|
||||
pattern from the root to a certain point, output code to
|
||||
evaluate to the rtx at that point. */
|
||||
|
||||
static void
|
||||
print_path (path)
|
||||
struct link *path;
|
||||
{
|
||||
if (path == 0)
|
||||
printf ("insn");
|
||||
else if (path->vecelt >= 0)
|
||||
{
|
||||
printf ("XVECEXP (");
|
||||
print_path (path->next);
|
||||
printf (", %d, %d)", path->pos, path->vecelt);
|
||||
}
|
||||
else
|
||||
{
|
||||
printf ("XEXP (");
|
||||
print_path (path->next);
|
||||
printf (", %d)", path->pos);
|
||||
}
|
||||
}
|
||||
|
||||
char *
|
||||
xmalloc (size)
|
||||
unsigned size;
|
||||
{
|
||||
register char *val = (char *) malloc (size);
|
||||
|
||||
if (val == 0)
|
||||
fatal ("virtual memory exhausted");
|
||||
return val;
|
||||
}
|
||||
|
||||
char *
|
||||
xrealloc (ptr, size)
|
||||
char *ptr;
|
||||
unsigned size;
|
||||
{
|
||||
char *result = (char *) realloc (ptr, size);
|
||||
if (!result)
|
||||
fatal ("virtual memory exhausted");
|
||||
return result;
|
||||
}
|
||||
|
||||
static void
|
||||
fatal (s, a1, a2)
|
||||
char *s;
|
||||
{
|
||||
fprintf (stderr, "genextract: ");
|
||||
fprintf (stderr, s, a1, a2);
|
||||
fprintf (stderr, "\n");
|
||||
exit (FATAL_EXIT_CODE);
|
||||
}
|
||||
|
||||
/* More 'friendly' abort that prints the line and file.
|
||||
config.h can #define abort fancy_abort if you like that sort of thing. */
|
||||
|
||||
void
|
||||
fancy_abort ()
|
||||
{
|
||||
fatal ("Internal gcc abort.");
|
||||
}
|
||||
|
||||
int
|
||||
main (argc, argv)
|
||||
int argc;
|
||||
char **argv;
|
||||
{
|
||||
rtx desc;
|
||||
FILE *infile;
|
||||
extern rtx read_rtx ();
|
||||
register int c, i;
|
||||
|
||||
obstack_init (rtl_obstack);
|
||||
|
||||
if (argc <= 1)
|
||||
fatal ("No input file name.");
|
||||
|
||||
infile = fopen (argv[1], "r");
|
||||
if (infile == 0)
|
||||
{
|
||||
perror (argv[1]);
|
||||
exit (FATAL_EXIT_CODE);
|
||||
}
|
||||
|
||||
init_rtl ();
|
||||
|
||||
/* Assign sequential codes to all entries in the machine description
|
||||
in parallel with the tables in insn-output.c. */
|
||||
|
||||
insn_code_number = 0;
|
||||
|
||||
operand_seen_length = 40;
|
||||
operand_seen = (char *) xmalloc (40);
|
||||
|
||||
printf ("/* Generated automatically by the program `genextract'\n\
|
||||
from the machine description file `md'. */\n\n");
|
||||
|
||||
printf ("#include \"config.h\"\n");
|
||||
printf ("#include \"rtl.h\"\n\n");
|
||||
|
||||
/* This variable exists only so it can be the "location"
|
||||
of any missing operand whose numbers are skipped by a given pattern. */
|
||||
printf ("static rtx junk;\n");
|
||||
printf ("extern rtx recog_operand[];\n");
|
||||
printf ("extern rtx *recog_operand_loc[];\n");
|
||||
printf ("extern rtx *recog_dup_loc[];\n");
|
||||
printf ("extern char recog_dup_num[];\n");
|
||||
printf ("extern void fatal_insn_not_found ();\n\n");
|
||||
|
||||
printf ("void\ninsn_extract (insn)\n");
|
||||
printf (" rtx insn;\n");
|
||||
printf ("{\n");
|
||||
printf (" int insn_code = INSN_CODE (insn);\n");
|
||||
printf (" if (insn_code == -1) fatal_insn_not_found (insn);\n");
|
||||
printf (" insn = PATTERN (insn);\n");
|
||||
printf (" switch (insn_code)\n");
|
||||
printf (" {\n");
|
||||
|
||||
/* Read the machine description. */
|
||||
|
||||
while (1)
|
||||
{
|
||||
c = read_skip_spaces (infile);
|
||||
if (c == EOF)
|
||||
break;
|
||||
ungetc (c, infile);
|
||||
|
||||
desc = read_rtx (infile);
|
||||
if (GET_CODE (desc) == DEFINE_INSN)
|
||||
{
|
||||
gen_insn (desc);
|
||||
++insn_code_number;
|
||||
}
|
||||
if (GET_CODE (desc) == DEFINE_PEEPHOLE)
|
||||
{
|
||||
printf (" case %d: goto peephole;\n", insn_code_number);
|
||||
++insn_code_number;
|
||||
++peephole_seen;
|
||||
}
|
||||
if (GET_CODE (desc) == DEFINE_EXPAND || GET_CODE (desc) == DEFINE_SPLIT)
|
||||
{
|
||||
printf (" case %d: break;\n", insn_code_number);
|
||||
++insn_code_number;
|
||||
}
|
||||
}
|
||||
|
||||
/* This should never be reached. */
|
||||
printf ("\n default:\n abort ();\n");
|
||||
|
||||
if (peephole_seen)
|
||||
{
|
||||
/* The vector in the insn says how many operands it has.
|
||||
And all it contains are operands. In fact, the vector was
|
||||
created just for the sake of this function. */
|
||||
printf (" peephole:\n");
|
||||
printf ("#if __GNUC__ > 1 && !defined (bcopy)\n");
|
||||
printf ("#define bcopy(FROM,TO,COUNT) __builtin_memcpy(TO,FROM,COUNT)\n");
|
||||
printf ("#endif\n");
|
||||
printf (" bcopy (&XVECEXP (insn, 0, 0), recog_operand,\n");
|
||||
printf (" sizeof (rtx) * XVECLEN (insn, 0));\n");
|
||||
printf (" break;\n");
|
||||
}
|
||||
|
||||
printf (" }\n}\n");
|
||||
|
||||
fflush (stdout);
|
||||
exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
|
||||
/* NOTREACHED */
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,160 @@
|
|||
/* Generate from machine description:
|
||||
|
||||
- some flags HAVE_... saying which simple standard instructions are
|
||||
available for this machine.
|
||||
Copyright (C) 1987 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU CC.
|
||||
|
||||
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.
|
||||
|
||||
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.
|
||||
|
||||
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
|
||||
|
||||
#include <stdio.h>
|
||||
#include "config.h"
|
||||
#include "rtl.h"
|
||||
#include "obstack.h"
|
||||
|
||||
static struct obstack obstack;
|
||||
struct obstack *rtl_obstack = &obstack;
|
||||
|
||||
#define obstack_chunk_alloc xmalloc
|
||||
#define obstack_chunk_free free
|
||||
|
||||
extern void free ();
|
||||
|
||||
char *xmalloc ();
|
||||
static void fatal ();
|
||||
void fancy_abort ();
|
||||
|
||||
static void
|
||||
gen_insn (insn)
|
||||
rtx insn;
|
||||
{
|
||||
char *p;
|
||||
|
||||
/* Don't mention instructions whose names are the null string.
|
||||
They are in the machine description just to be recognized. */
|
||||
if (strlen (XSTR (insn, 0)) == 0)
|
||||
return;
|
||||
|
||||
printf ("#define HAVE_%s ", XSTR (insn, 0));
|
||||
if (strlen (XSTR (insn, 2)) == 0)
|
||||
printf ("1\n");
|
||||
else
|
||||
{
|
||||
/* Write the macro definition, putting \'s at the end of each line,
|
||||
if more than one. */
|
||||
printf ("(");
|
||||
for (p = XSTR (insn, 2); *p; p++)
|
||||
{
|
||||
if (*p == '\n')
|
||||
printf (" \\\n");
|
||||
else
|
||||
printf ("%c", *p);
|
||||
}
|
||||
printf (")\n");
|
||||
}
|
||||
|
||||
printf ("extern rtx gen_%s ();\n", XSTR (insn, 0));
|
||||
}
|
||||
|
||||
char *
|
||||
xmalloc (size)
|
||||
unsigned size;
|
||||
{
|
||||
register char *val = (char *) malloc (size);
|
||||
|
||||
if (val == 0)
|
||||
fatal ("virtual memory exhausted");
|
||||
|
||||
return val;
|
||||
}
|
||||
|
||||
char *
|
||||
xrealloc (ptr, size)
|
||||
char *ptr;
|
||||
unsigned size;
|
||||
{
|
||||
char *result = (char *) realloc (ptr, size);
|
||||
if (!result)
|
||||
fatal ("virtual memory exhausted");
|
||||
return result;
|
||||
}
|
||||
|
||||
static void
|
||||
fatal (s, a1, a2)
|
||||
char *s;
|
||||
{
|
||||
fprintf (stderr, "genflags: ");
|
||||
fprintf (stderr, s, a1, a2);
|
||||
fprintf (stderr, "\n");
|
||||
exit (FATAL_EXIT_CODE);
|
||||
}
|
||||
|
||||
/* More 'friendly' abort that prints the line and file.
|
||||
config.h can #define abort fancy_abort if you like that sort of thing. */
|
||||
|
||||
void
|
||||
fancy_abort ()
|
||||
{
|
||||
fatal ("Internal gcc abort.");
|
||||
}
|
||||
|
||||
int
|
||||
main (argc, argv)
|
||||
int argc;
|
||||
char **argv;
|
||||
{
|
||||
rtx desc;
|
||||
FILE *infile;
|
||||
extern rtx read_rtx ();
|
||||
register int c;
|
||||
|
||||
obstack_init (rtl_obstack);
|
||||
|
||||
if (argc <= 1)
|
||||
fatal ("No input file name.");
|
||||
|
||||
infile = fopen (argv[1], "r");
|
||||
if (infile == 0)
|
||||
{
|
||||
perror (argv[1]);
|
||||
exit (FATAL_EXIT_CODE);
|
||||
}
|
||||
|
||||
init_rtl ();
|
||||
|
||||
printf ("/* Generated automatically by the program `genflags'\n\
|
||||
from the machine description file `md'. */\n\n");
|
||||
|
||||
/* Read the machine description. */
|
||||
|
||||
while (1)
|
||||
{
|
||||
c = read_skip_spaces (infile);
|
||||
if (c == EOF)
|
||||
break;
|
||||
ungetc (c, infile);
|
||||
|
||||
desc = read_rtx (infile);
|
||||
if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
|
||||
gen_insn (desc);
|
||||
}
|
||||
|
||||
fflush (stdout);
|
||||
exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
|
||||
/* NOTREACHED */
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue