cse.c (invalidate_from_clobbers): Delete unnecessary test for (clobber nil).

	* cse.c (invalidate_from_clobbers): Delete unnecessary test for
	(clobber nil).

From-SVN: r13618

gcc/cse.c

@@ -7653,8 +7653,7 @@ invalidate_from_clobbers (w, x)
   if (GET_CODE (x) == CLOBBER)
     {
       rtx ref = XEXP (x, 0);
-      if (ref)
-	{
+
       if (GET_CODE (ref) == REG || GET_CODE (ref) == SUBREG
 	  || (GET_CODE (ref) == MEM && ! w->all))
 	invalidate (ref, VOIDmode);
@@ -7662,7 +7661,6 @@ invalidate_from_clobbers (w, x)
 	       || GET_CODE (ref) == ZERO_EXTRACT)
 	invalidate (XEXP (ref, 0), GET_MODE (ref));
     }
-    }
   else if (GET_CODE (x) == PARALLEL)
     {
       register int i;