diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9497b2b08b3..24c7f8a86c9 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -13,6 +13,9 @@ Tue Apr  6 17:49:49 1999  Philip Blundell  <pb@nexus.co.uk>
 
 Wed Apr  7 14:07:34 1999  Jeffrey A Law  (law@cygnus.com)
 
+	* h8300.c (h8300_adjust_insn_length): Also avoid recognizing
+	ADDR_VEC and ADDR_DIFF_VEC insns.
+
 	* h8300.c (h8300_adjust_insn_length): Avoid trying to recognize
 	USE, CLOBBER or SEQUENCE insns.
 
diff --git a/gcc/config/h8300/h8300.c b/gcc/config/h8300/h8300.c
index b181ae0f621..5fb4a628c46 100644
--- a/gcc/config/h8300/h8300.c
+++ b/gcc/config/h8300/h8300.c
@@ -3036,7 +3036,9 @@ h8300_adjust_insn_length (insn, length)
   /* We must filter these ou before calling get_attr_adjust_length.  */
   if (GET_CODE (PATTERN (insn)) == USE
       || GET_CODE (PATTERN (insn)) == CLOBBER
-      || GET_CODE (PATTERN (insn)) == SEQUENCE)
+      || GET_CODE (PATTERN (insn)) == SEQUENCE
+      || GET_CODE (PATTERN (insn)) == ADDR_VEC
+      || GET_CODE (PATTERN (insn)) == ADDR_DIFF_VEC)
     return 0;
 
   if (get_attr_adjust_length (insn) == ADJUST_LENGTH_NO)