diff --git a/gcc/config/m88k/m88k.md b/gcc/config/m88k/m88k.md
index 70897cbda70..397737f952b 100644
--- a/gcc/config/m88k/m88k.md
+++ b/gcc/config/m88k/m88k.md
@@ -1997,7 +1997,9 @@
 (define_split
   [(set (match_operand:DF 0 "register_operand" "=r")
 	(match_operand:DF 1 "register_operand" "r"))]
-  "reload_completed"
+  "reload_completed
+   && GET_CODE (operands[0]) == REG && !XRF_REGNO_P (REGNO (operands[0]))
+   && GET_CODE (operands[1]) == REG && !XRF_REGNO_P (REGNO (operands[1]))"
   [(set (match_dup 2) (match_dup 3))
    (set (match_dup 4) (match_dup 5))]
   "