From: Doug Evans <dje@gnu.org>
Date: Fri, 7 Feb 1997 18:56:07 +0000 (+0000)
Subject: cse.c (invalidate_from_clobbers): Delete unnecessary test for (clobber nil).
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=899bf2bfa597e9905a9f545e916ecfce3e11a73d;p=gcc.git

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
---

diff --git a/gcc/cse.c b/gcc/cse.c
index cc9c142c570..893f1a4266c 100644
--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -7653,15 +7653,13 @@ 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);
-	  else if (GET_CODE (ref) == STRICT_LOW_PART
-		   || GET_CODE (ref) == ZERO_EXTRACT)
-	    invalidate (XEXP (ref, 0), GET_MODE (ref));
-	}
+
+      if (GET_CODE (ref) == REG || GET_CODE (ref) == SUBREG
+	  || (GET_CODE (ref) == MEM && ! w->all))
+	invalidate (ref, VOIDmode);
+      else if (GET_CODE (ref) == STRICT_LOW_PART
+	       || GET_CODE (ref) == ZERO_EXTRACT)
+	invalidate (XEXP (ref, 0), GET_MODE (ref));
     }
   else if (GET_CODE (x) == PARALLEL)
     {