--- /dev/null
+2002-08-17 H.J. Lu <hjl@gnu.org>
+
+ * calls.c (PUSH_ARGS_REVERSED): Define only if not defined.
+ * expr.c (PUSH_ARGS_REVERSED): Likewise.
+
+2002-07-26 H.J. Lu <hjl@gnu.org>
+
+ * config/i386/i386.h (PUSH_ARGS_REVERSED): Set to 1.
+
+--- gcc/calls.c.var Thu Apr 4 15:28:47 2002
++++ gcc/calls.c Sat Aug 17 22:45:46 2002
+@@ -46,9 +46,11 @@ Software Foundation, 59 Temple Place - S
+
+ #ifdef PUSH_ROUNDING
+
++#ifndef PUSH_ARGS_REVERSED
+ #if defined (STACK_GROWS_DOWNWARD) != defined (ARGS_GROW_DOWNWARD)
+ #define PUSH_ARGS_REVERSED PUSH_ARGS
+ #endif
++#endif
+
+ #endif
+
+--- gcc/config/i386/i386.h.var Sun Jul 14 23:54:36 2002
++++ gcc/config/i386/i386.h Sat Aug 17 19:03:21 2002
+@@ -1581,6 +1581,10 @@ enum reg_class
+
+ #define PUSH_ARGS (TARGET_PUSH_ARGS && !ACCUMULATE_OUTGOING_ARGS)
+
++/* We want the stack and args grow in opposite directions, even if
++ PUSH_ARGS is 0. */
++#define PUSH_ARGS_REVERSED 1
++
+ /* Offset of first parameter from the argument pointer register value. */
+ #define FIRST_PARM_OFFSET(FNDECL) 0
+
+--- gcc/expr.c.var Mon May 6 22:43:11 2002
++++ gcc/expr.c Sat Aug 17 22:52:27 2002
+@@ -54,9 +54,11 @@ Software Foundation, 59 Temple Place - S
+
+ #ifdef PUSH_ROUNDING
+
++#ifndef PUSH_ARGS_REVERSED
+ #if defined (STACK_GROWS_DOWNWARD) != defined (ARGS_GROW_DOWNWARD)
+ #define PUSH_ARGS_REVERSED /* If it's last to first. */
+ #endif
++#endif
+
+ #endif
+
+2002-08-18 H.J. Lu <hjl@gnu.org>
+
+ * calls.c (store_one_arg): Remove ATTRIBUTE_UNUSED on
+ variable_size. Mark any slots used for the argument as in-use
+ only if we can't pass all arguments to a library call in
+ registers.
+
+--- gcc/calls.c.copy Sun Aug 18 07:35:11 2002
++++ gcc/calls.c Sun Aug 18 08:27:29 2002
+@@ -4270,7 +4270,7 @@ store_one_arg (arg, argblock, flags, var
+ struct arg_data *arg;
+ rtx argblock;
+ int flags;
+- int variable_size ATTRIBUTE_UNUSED;
++ int variable_size;
+ int reg_parm_stack_space;
+ {
+ tree pval = arg->tree_value;
+@@ -4345,14 +4345,22 @@ store_one_arg (arg, argblock, flags, var
+ emit_move_insn (arg->save_area, stack_area);
+ }
+ }
++
++ /* Now that we have saved any slots that will be overwritten
++ by this store, mark all slots this store will use. We
++ must do this before we actually expand the argument since
++ the expansion itself may trigger library calls which might
++ need to use the same stack slot. We only do it if we can't
++ pass all arguments to a library call in registers. */
++ if (arg->partial)
++ {
++ for (i = lower_bound; i < upper_bound; i++)
++ stack_usage_map[i] = 1;
++
++ /* Set it so that we don't do it again. */
++ variable_size = 1;
++ }
+ }
+- /* Now that we have saved any slots that will be overwritten by this
+- store, mark all slots this store will use. We must do this before
+- we actually expand the argument since the expansion itself may
+- trigger library calls which might need to use the same stack slot. */
+- if (argblock && ! variable_size && arg->stack)
+- for (i = lower_bound; i < upper_bound; i++)
+- stack_usage_map[i] = 1;
+ }
+
+ /* If this isn't going to be placed on both the stack and in registers,
+@@ -4579,6 +4587,11 @@ store_one_arg (arg, argblock, flags, var
+ arg->value = arg->stack_slot;
+ }
+
++ if (ACCUMULATE_OUTGOING_ARGS && !(flags & ECF_SIBCALL)
++ && argblock && ! variable_size && arg->stack)
++ for (i = lower_bound; i < upper_bound; i++)
++ stack_usage_map[i] = 1;
++
+ /* Once we have pushed something, pops can't safely
+ be deferred during the rest of the arguments. */
+ NO_DEFER_POP;