Revert experimental hunk accidentally included in committed change.

From-SVN: r39828

gcc/config/pa/pa.c

@@ -382,9 +382,8 @@ move_operand (op, mode)
   if (GET_CODE (op) == LO_SUM
       && GET_CODE (XEXP (op, 0)) == REG
       && REG_OK_FOR_BASE_P (XEXP (op, 0))
-      && GET_CODE (XEXP (op, 1)) == UNSPEC
-      && GET_MODE (op) == Pmode)
-    return 1;
+      && GET_CODE (XEXP (op, 1)) == UNSPEC)
+    return 0;
 
   /* Since move_operand is only used for source operands, we can always
      allow scaled indexing!  */