diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 64cca62c739..7403553b171 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-06-29  Alan Modra  <amodra@bigpond.net.au>
+
+	* function.c (assign_parms): Don't abort with zero size stack
+	parm failing the PARM_BOUNDARY check.
+
 2004-06-28  Diego Novillo  <dnovillo@redhat.com>
 
 	* common.opt (ftree-fre): New flag.
diff --git a/gcc/function.c b/gcc/function.c
index ea092838519..080345f02bd 100644
--- a/gcc/function.c
+++ b/gcc/function.c
@@ -4821,7 +4821,7 @@ assign_parms (tree fndecl)
 		}
 	      else if (GET_CODE (entry_parm) == PARALLEL)
 		;
-	      else if (PARM_BOUNDARY % BITS_PER_WORD != 0)
+	      else if (size != 0 && PARM_BOUNDARY % BITS_PER_WORD != 0)
 		abort ();
 
 	      mem = validize_mem (stack_parm);