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-rw-r--r--contrib/gcc/genconfig.c379
1 files changed, 0 insertions, 379 deletions
diff --git a/contrib/gcc/genconfig.c b/contrib/gcc/genconfig.c
deleted file mode 100644
index 9f79e5882e11..000000000000
--- a/contrib/gcc/genconfig.c
+++ /dev/null
@@ -1,379 +0,0 @@
-/* Generate from machine description:
- - some #define configuration flags.
- Copyright (C) 1987, 1991, 1997, 1998, 1999 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, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-
-#include "hconfig.h"
-#include "system.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
-
-/* Define this so we can link with print-rtl.o to get debug_rtx function. */
-char **insn_name_ptr = 0;
-
-/* flags to determine output of machine description dependent #define's. */
-static int max_recog_operands; /* Largest operand number seen. */
-static int max_dup_operands; /* Largest number of match_dup in any insn. */
-static int max_clobbers_per_insn;
-static int register_constraint_flag;
-static int have_cc0_flag;
-static int have_cmove_flag;
-static int have_lo_sum_flag;
-
-/* Maximum number of insns seen in a split. */
-static int max_insns_per_split = 1;
-
-static int clobbers_seen_this_insn;
-static int dup_operands_seen_this_insn;
-
-void fatal PVPROTO ((const char *, ...))
- ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
-void fancy_abort PROTO((void)) ATTRIBUTE_NORETURN;
-
-static void walk_insn_part PROTO((rtx, int, int));
-static void gen_insn PROTO((rtx));
-static void gen_expand PROTO((rtx));
-static void gen_split PROTO((rtx));
-static void gen_peephole PROTO((rtx));
-
-/* RECOG_P will be non-zero if this pattern was seen in a context where it will
- be used to recognize, rather than just generate an insn.
-
- NON_PC_SET_SRC will be non-zero if this pattern was seen in a SET_SRC
- of a SET whose destination is not (pc). */
-
-static void
-walk_insn_part (part, recog_p, non_pc_set_src)
- rtx part;
- int recog_p;
- int non_pc_set_src;
-{
- register int i, j;
- register RTX_CODE code;
- register char *format_ptr;
-
- if (part == 0)
- return;
-
- code = GET_CODE (part);
- switch (code)
- {
- case CLOBBER:
- clobbers_seen_this_insn++;
- break;
-
- case MATCH_OPERAND:
- if (XINT (part, 0) > max_recog_operands)
- max_recog_operands = XINT (part, 0);
- if (XSTR (part, 2) && *XSTR (part, 2))
- register_constraint_flag = 1;
- return;
-
- case MATCH_OP_DUP:
- case MATCH_PAR_DUP:
- ++dup_operands_seen_this_insn;
- case MATCH_SCRATCH:
- case MATCH_PARALLEL:
- case MATCH_OPERATOR:
- if (XINT (part, 0) > max_recog_operands)
- max_recog_operands = XINT (part, 0);
- /* Now scan the rtl's in the vector inside the MATCH_OPERATOR or
- MATCH_PARALLEL. */
- break;
-
- case LABEL_REF:
- if (GET_CODE (XEXP (part, 0)) == MATCH_OPERAND)
- break;
- return;
-
- case MATCH_DUP:
- ++dup_operands_seen_this_insn;
- if (XINT (part, 0) > max_recog_operands)
- max_recog_operands = XINT (part, 0);
- return;
-
- case CC0:
- if (recog_p)
- have_cc0_flag = 1;
- return;
-
- case LO_SUM:
- if (recog_p)
- have_lo_sum_flag = 1;
- return;
-
- case SET:
- walk_insn_part (SET_DEST (part), 0, recog_p);
- walk_insn_part (SET_SRC (part), recog_p,
- GET_CODE (SET_DEST (part)) != PC);
- return;
-
- case IF_THEN_ELSE:
- /* Only consider this machine as having a conditional move if the
- two arms of the IF_THEN_ELSE are both MATCH_OPERAND. Otherwise,
- we have some specific IF_THEN_ELSE construct (like the doz
- instruction on the RS/6000) that can't be used in the general
- context we want it for. */
-
- if (recog_p && non_pc_set_src
- && GET_CODE (XEXP (part, 1)) == MATCH_OPERAND
- && GET_CODE (XEXP (part, 2)) == MATCH_OPERAND)
- have_cmove_flag = 1;
- break;
-
- case REG: case CONST_INT: case SYMBOL_REF:
- case PC:
- return;
-
- default:
- break;
- }
-
- format_ptr = GET_RTX_FORMAT (GET_CODE (part));
-
- for (i = 0; i < GET_RTX_LENGTH (GET_CODE (part)); i++)
- switch (*format_ptr++)
- {
- case 'e':
- case 'u':
- walk_insn_part (XEXP (part, i), recog_p, non_pc_set_src);
- break;
- case 'E':
- if (XVEC (part, i) != NULL)
- for (j = 0; j < XVECLEN (part, i); j++)
- walk_insn_part (XVECEXP (part, i, j), recog_p, non_pc_set_src);
- break;
- }
-}
-
-static void
-gen_insn (insn)
- rtx insn;
-{
- int i;
-
- /* Walk the insn pattern to gather the #define's status. */
- clobbers_seen_this_insn = 0;
- dup_operands_seen_this_insn = 0;
- if (XVEC (insn, 1) != 0)
- for (i = 0; i < XVECLEN (insn, 1); i++)
- walk_insn_part (XVECEXP (insn, 1, i), 1, 0);
-
- if (clobbers_seen_this_insn > max_clobbers_per_insn)
- max_clobbers_per_insn = clobbers_seen_this_insn;
- if (dup_operands_seen_this_insn > max_dup_operands)
- max_dup_operands = dup_operands_seen_this_insn;
-}
-
-/* Similar but scan a define_expand. */
-
-static void
-gen_expand (insn)
- rtx insn;
-{
- int i;
-
- /* Walk the insn pattern to gather the #define's status. */
-
- /* Note that we don't bother recording the number of MATCH_DUPs
- that occur in a gen_expand, because only reload cares about that. */
- if (XVEC (insn, 1) != 0)
- for (i = 0; i < XVECLEN (insn, 1); i++)
- {
- /* Compute the maximum SETs and CLOBBERS
- in any one of the sub-insns;
- don't sum across all of them. */
- clobbers_seen_this_insn = 0;
-
- walk_insn_part (XVECEXP (insn, 1, i), 0, 0);
-
- if (clobbers_seen_this_insn > max_clobbers_per_insn)
- max_clobbers_per_insn = clobbers_seen_this_insn;
- }
-}
-
-/* Similar but scan a define_split. */
-
-static void
-gen_split (split)
- rtx split;
-{
- int i;
-
- /* Look through the patterns that are matched
- to compute the maximum operand number. */
- for (i = 0; i < XVECLEN (split, 0); i++)
- walk_insn_part (XVECEXP (split, 0, i), 1, 0);
- /* Look at the number of insns this insn could split into. */
- if (XVECLEN (split, 2) > max_insns_per_split)
- max_insns_per_split = XVECLEN (split, 2);
-}
-
-static void
-gen_peephole (peep)
- rtx peep;
-{
- int i;
-
- /* Look through the patterns that are matched
- to compute the maximum operand number. */
- for (i = 0; i < XVECLEN (peep, 0); i++)
- walk_insn_part (XVECEXP (peep, 0, i), 1, 0);
-}
-
-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;
-}
-
-void
-fatal VPROTO ((const char *format, ...))
-{
-#ifndef ANSI_PROTOTYPES
- const char *format;
-#endif
- va_list ap;
-
- VA_START (ap, format);
-
-#ifndef ANSI_PROTOTYPES
- format = va_arg (ap, const char *);
-#endif
-
- fprintf (stderr, "genconfig: ");
- vfprintf (stderr, format, ap);
- va_end (ap);
- 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;
- 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 `genconfig'\n\
-from the machine description file `md'. */\n\n");
-
- /* Allow at least 10 operands for the sake of asm constructs. */
- max_recog_operands = 9; /* We will add 1 later. */
- max_dup_operands = 1;
-
- /* 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);
- if (GET_CODE (desc) == DEFINE_EXPAND)
- gen_expand (desc);
- if (GET_CODE (desc) == DEFINE_SPLIT)
- gen_split (desc);
- if (GET_CODE (desc) == DEFINE_PEEPHOLE)
- gen_peephole (desc);
- }
-
- printf ("\n#define MAX_RECOG_OPERANDS %d\n", max_recog_operands + 1);
-
- printf ("\n#define MAX_DUP_OPERANDS %d\n", max_dup_operands);
-
- /* This is conditionally defined, in case the user writes code which emits
- more splits than we can readily see (and knows s/he does it). */
- printf ("#ifndef MAX_INSNS_PER_SPLIT\n#define MAX_INSNS_PER_SPLIT %d\n#endif\n",
- max_insns_per_split);
-
- if (register_constraint_flag)
- printf ("#define REGISTER_CONSTRAINTS\n");
-
- if (have_cc0_flag)
- printf ("#define HAVE_cc0\n");
-
- if (have_cmove_flag)
- printf ("#define HAVE_conditional_move\n");
-
- if (have_lo_sum_flag)
- printf ("#define HAVE_lo_sum\n");
-
- fflush (stdout);
- exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
- /* NOTREACHED */
- return 0;
-}
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