emit-rtl.c (widen_memory_access): Only call compare_tree_int on an INTEGER_CST.

	* emit-rtl.c (widen_memory_access): Only call compare_tree_int
	on an INTEGER_CST.

From-SVN: r48166

gcc/ChangeLog

+Tue Dec 18 17:02:06 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
+
+	* emit-rtl.c (widen_memory_access): Only call compare_tree_int
+	on an INTEGER_CST.
+
 2001-12-18  David Edelsohn  <edelsohn@gnu.org>
 
 	* rs6000.c (rs6000_override_options): Only use DI ops when

gcc/emit-rtl.c

@@ -2113,7 +2113,8 @@ widen_memory_access (memref, mode, offset)
 
 	  /* Is the field at least as large as the access?  If so, ok,
 	     otherwise strip back to the containing structure.  */
-	  if (compare_tree_int (DECL_SIZE_UNIT (field), size) >= 0
+	  if (TREE_CODE (DECL_SIZE_UNIT (field)) == INTEGER_CST
+	      && compare_tree_int (DECL_SIZE_UNIT (field), size) >= 0
 	      && INTVAL (memoffset) >= 0)
 	    break;