diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 68c3d86de6c..78b0a8ac045 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2003-04-18  Roger Sayle  <roger@eyesopen.com>
+
+	* rtlanal.c (reg_overlap_mentioned_p): Handle ZERO_EXTRACT
+	and SIGN_EXTRACT.
+
 2003-04-18  Eric Botcazou  <ebotcazou@libertysurf.fr>
 
 	PR optimization/7675
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
index 3b024adc89d..80fff6310bf 100644
--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -1573,7 +1573,9 @@ reg_overlap_mentioned_p (x, in)
   unsigned int regno, endregno;
 
   /* Overly conservative.  */
-  if (GET_CODE (x) == STRICT_LOW_PART)
+  if (GET_CODE (x) == STRICT_LOW_PART
+      || GET_CODE (x) == ZERO_EXTRACT
+      || GET_CODE (x) == SIGN_EXTRACT)
     x = XEXP (x, 0);
 
   /* If either argument is a constant, then modifying X can not affect IN.  */