diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index de7731f2e6ed..0471e0083d79 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2004-10-24  Geoffrey Keating  <geoffk@geoffk.org>
+
+	* config/rs6000/darwin.h (BLOCK_REG_PADDING): Define.
+
 2004-10-25  Ben Elliston  <bje@au.ibm.com>
 
 	* cfgcleanup.c (outgoing_edges_match): Fix typo in dump output.
diff --git a/gcc/config/rs6000/darwin.h b/gcc/config/rs6000/darwin.h
index 7f499792bd3d..cb51b82de24b 100644
--- a/gcc/config/rs6000/darwin.h
+++ b/gcc/config/rs6000/darwin.h
@@ -352,6 +352,12 @@ do {									\
    ? MAX (MAX ((COMPUTED), (SPECIFIED)), 128)          			 \
    : MAX ((COMPUTED), (SPECIFIED)))
 
+/* Specify padding for the last element of a block move between
+   registers and memory.  FIRST is nonzero if this is the only
+   element.  */
+#define BLOCK_REG_PADDING(MODE, TYPE, FIRST) \
+  (!(FIRST) ? upward : FUNCTION_ARG_PADDING (MODE, TYPE))
+
 /* XXX: Darwin supports neither .quad, or .llong, but it also doesn't
    support 64 bit PowerPC either, so this just keeps things happy.  */
 #define DOUBLE_INT_ASM_OP "\t.quad\t"