diff options
Diffstat (limited to 'gcc/simplify-rtx.c')
| -rw-r--r-- | gcc/simplify-rtx.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index 1949f24..b0ddb65 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -1,6 +1,6 @@ /* RTL simplification functions for GNU compiler. Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, - 1999, 2000, 2001, 2002 Free Software Foundation, Inc. + 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. This file is part of GCC. @@ -2729,11 +2729,15 @@ simplify_rtx (x) : GET_MODE (XEXP (x, 1))), XEXP (x, 0), XEXP (x, 1)); case 'x': - /* The only case we try to handle is a SUBREG. */ if (code == SUBREG) return simplify_gen_subreg (mode, SUBREG_REG (x), GET_MODE (SUBREG_REG (x)), SUBREG_BYTE (x)); + if (code == CONSTANT_P_RTX) + { + if (CONSTANT_P (XEXP (x,0))) + return const1_rtx; + } return NULL; default: return NULL; |