1 files changed, 8 insertions, 3 deletions
diff --git a/gcc/cse.c b/gcc/cse.c
index 1a4ca2e..8f9ac33 100644
--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -1,6 +1,6 @@
 /* Common subexpression elimination 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.
 
@@ -4332,9 +4332,14 @@ fold_rtx (x, insn)
       break;
 
     case 'x':
-      /* Always eliminate CONSTANT_P_RTX at this stage.  */
+      /* Eliminate CONSTANT_P_RTX if its constant.  */
       if (code == CONSTANT_P_RTX)
-	return (const_arg0 ? const1_rtx : const0_rtx);
+	{
+	  if (const_arg0)
+	    return const1_rtx;
+	  if (!flag_gcse)
+	    return const0_rtx;
+	}
       break;
     }