diff options
Diffstat (limited to 'gcc/genconfig.c')
| -rw-r--r-- | gcc/genconfig.c | 53 |
1 files changed, 47 insertions, 6 deletions
diff --git a/gcc/genconfig.c b/gcc/genconfig.c index 7bcf0f2b9cd..337f8737d87 100644 --- a/gcc/genconfig.c +++ b/gcc/genconfig.c @@ -1,6 +1,6 @@ /* Generate from machine description: - some #define configuration flags. - Copyright (C) 1987, 1991, 1997 Free Software Foundation, Inc. + Copyright (C) 1987, 1991, 1997, 1998 Free Software Foundation, Inc. This file is part of GNU CC. @@ -20,8 +20,8 @@ the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#include <stdio.h> #include "hconfig.h" +#include "system.h" #include "rtl.h" #include "obstack.h" @@ -31,7 +31,6 @@ struct obstack *rtl_obstack = &obstack; #define obstack_chunk_alloc xmalloc #define obstack_chunk_free free -extern void free (); extern rtx read_rtx (); /* flags to determine output of machine description dependent #define's. */ @@ -41,6 +40,7 @@ static int max_clobbers_per_insn; static int register_constraint_flag; static int have_cc0_flag; static int have_cmove_flag; +static int have_cond_arith_flag; static int have_lo_sum_flag; /* Maximum number of insns seen in a split. */ @@ -50,7 +50,12 @@ static int clobbers_seen_this_insn; static int dup_operands_seen_this_insn; char *xmalloc (); -static void fatal (); +#ifdef HAVE_VPRINTF +void fatal PVPROTO((char *, ...)); +#else +/* We must not provide any prototype here, even if ANSI C. */ +void fatal PROTO(()); +#endif void fancy_abort (); /* RECOG_P will be non-zero if this pattern was seen in a context where it will @@ -130,12 +135,21 @@ walk_insn_part (part, recog_p, non_pc_set_src) 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. */ + context we want it for. If the first operand is an arithmetic + operation and the second is a MATCH_OPERNAND, show we have + conditional arithmetic. */ 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; + else if (recog_p && non_pc_set_src + && (GET_RTX_CLASS (GET_CODE (XEXP (part, 1))) == '1' + || GET_RTX_CLASS (GET_CODE (XEXP (part, 1))) == '2' + || GET_RTX_CLASS (GET_CODE (XEXP (part, 1))) == 'c') + && GET_CODE (XEXP (XEXP (part, 1), 0)) == MATCH_OPERAND + && GET_CODE (XEXP (part, 2)) == MATCH_OPERAND) + have_cond_arith_flag = 1; break; case REG: case CONST_INT: case SYMBOL_REF: @@ -261,7 +275,30 @@ xrealloc (ptr, size) return result; } -static void +#ifdef HAVE_VPRINTF +void +fatal VPROTO((char *s, ...)) +{ +#ifndef ANSI_PROTOTYPES + char *s; +#endif + va_list ap; + + VA_START (ap, s); + +#ifndef ANSI_PROTOTYPES + s = va_arg (ap, char *); +#endif + + fprintf (stderr, "genconfig: "); + vfprintf (stderr, s, ap); + va_end (ap); + fprintf (stderr, "\n"); + exit (FATAL_EXIT_CODE); +} +#else /* not HAVE_VPRINTF */ + +void fatal (s, a1, a2) char *s; { @@ -270,6 +307,7 @@ fatal (s, a1, a2) fprintf (stderr, "\n"); exit (FATAL_EXIT_CODE); } +#endif /* not HAVE_VPRINTF */ /* More 'friendly' abort that prints the line and file. config.h can #define abort fancy_abort if you like that sort of thing. */ @@ -348,6 +386,9 @@ from the machine description file `md'. */\n\n"); if (have_cmove_flag) printf ("#define HAVE_conditional_move\n"); + if (have_cond_arith_flag) + printf ("#define HAVE_conditional_arithmetic\n"); + if (have_lo_sum_flag) printf ("#define HAVE_lo_sum\n"); |