diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 828390a7851..a11ec21bb26 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -16,6 +16,8 @@ Wed Dec 16 17:24:07 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
 
 Tue Dec 15 13:49:55 1998  Jeffrey A Law  (law@cygnus.com)
 
+	* mn10200.md (addsi3 expander): Use "nonmemory_operand" for operand 2.
+
 	* mn10300.md (bset, bclr): Operand 0 is a read/write operand.
 
 	* mn10200.md (abssf2, negsf2): New expanders.
diff --git a/gcc/config/mn10200/mn10200.md b/gcc/config/mn10200/mn10200.md
index 2a693b4dbda..6ba15147827 100644
--- a/gcc/config/mn10200/mn10200.md
+++ b/gcc/config/mn10200/mn10200.md
@@ -371,10 +371,13 @@
 ;;
 ;; So we call out to a library routine to perform 32bit add or
 ;; subtract operations.
+;;
+;; operand2 must be nonmemory_operand so that we will accept CONST_INTs
+;; during initial code generation.
 (define_expand "addsi3"
   [(set (match_operand:SI 0 "register_operand" "")
 	(plus:SI (match_operand:SI 1 "register_operand" "")
-		 (match_operand:SI 2 "register_operand" "")))]
+		 (match_operand:SI 2 "nonmemory_operand" "")))]
   ""
   "
 {