diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 29a4b9cce92..6d72ac5ce0f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2001-10-09  Andrew Haley  <aph@redhat.com>
+
+	* calls.c (check_sibcall_argument_overlap): Use slot_offset for
+	start of stack slot.
+
 2001-11-22  Graham Stott  <grahams@redhat.com>
 
 	* cfgrtl.c (try_redirect_by_replacing_jump): Fix typo, emit
diff --git a/gcc/calls.c b/gcc/calls.c
index 8b3b969acbe..f4637bc1242 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -2035,9 +2035,9 @@ check_sibcall_argument_overlap (insn, arg)
       break;
 
 #ifdef ARGS_GROW_DOWNWARD
-  low = -arg->offset.constant - arg->size.constant;
+  low = -arg->slot_offset.constant - arg->size.constant;
 #else
-  low = arg->offset.constant;
+  low = arg->slot_offset.constant;
 #endif
 
   for (high = low + arg->size.constant; low < high; low++)