diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 821d3575041..156a24fc266 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Thu Oct  7 23:06:50 1999  Richard Henderson  <rth@cygnus.com>
+
+	* rs6000.md (fix_truncdfsi2_internal+1): Emit a clobber
+	before the fctiwz insn.
+
 Thu Oct  7 22:53:00 1999  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>
 	                  Mark Mitchell  <mark@codesourcery.com>
 
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index 54e62060d2b..ee32350f33c 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -4421,7 +4421,8 @@
    (clobber (match_operand 3 "gpc_reg_operand" ""))
    (clobber (reg:DI 76))]
   "TARGET_HARD_FLOAT"
-  [(set (subreg:SI (match_dup 2) 0)
+  [(clobber (match_dup 2))
+   (set (subreg:SI (match_dup 2) 0)
 	(fix:SI (match_operand:DF 1 "gpc_reg_operand" "")))
    (set (match_dup 3)
 	(unspec [(const_int 0)] 11))