diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index bb6e8fd657fd848381140a378bd535f77be4d40f..a15320eb514c04ba348a48d4b9927e1285b76c42 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2003-11-01  Fariborz Jahanian  <fjahanian@apple.com>
+
+	* config/rs6000/rs6000.c (rs6000_mixed_function_arg): Correct
+	no_units calculation.
+
 2003-11-01  Andreas Jaeger  <aj@suse.de>
 
 	* unwind-dw2.c (_Unwind_FrameState): Remove commas at end of
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 5abfc095aa6421de0caf1848f10d39533dcaa229..8c042b5ba6266d93e8238c993090861cd4fb48d2 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -4017,7 +4017,7 @@ rs6000_mixed_function_arg (CUMULATIVE_ARGS *cum, enum machine_mode mode,
     {
       int k;
       int size = int_size_in_bytes (type);
-      int no_units = size / 4;
+      int no_units = ((size - 1) / 4) + 1;
       int max_no_words = GP_ARG_NUM_REG - align_words;
       int rtlvec_len = no_units < max_no_words ? no_units : max_no_words;
       rtx *rtlvec = (rtx *) alloca (rtlvec_len * sizeof (rtx));