* expr.c (convert_move): Handle moves between two CONCATs.

From-SVN: r67760

gcc/ChangeLog

+2003-06-11  J"orn Rennecke <joern.rennecke@superh.com>
+
+	* expr.c (convert_move): Handle moves between two CONCATs.
+
 2003-06-11  Kazu Hirata  <kazu@cs.umass.edu>
 
 	* config/h8300/h8300.h (RETURN_IN_MEMORY): Accept DImode if

gcc/expr.c

@@ -606,6 +606,13 @@ convert_move (to, from, unsignedp)
       return;
     }
 
+  if (GET_CODE (to) == CONCAT && GET_CODE (from) == CONCAT)
+    {
+      convert_move (XEXP (to, 0), XEXP (from, 0), unsignedp);
+      convert_move (XEXP (to, 1), XEXP (from, 1), unsignedp);
+      return;
+    }
+
   if (to_real != from_real)
     abort ();