(emit_call_1): Properly add a CLOBBER for sp to

CALL_INSN_FUNCTION_USAGE.

From-SVN: r8116

gcc/calls.c

@@ -443,7 +443,8 @@ emit_call_1 (funexp, funtype, stack_size, struct_value_size, next_arg_reg,
     {
       if (!already_popped)
 	CALL_INSN_FUNCTION_USAGE (call_insn) =
-	   gen_rtx (EXPR_LIST, CLOBBER, stack_pointer_rtx,
+	   gen_rtx (EXPR_LIST, VOIDmode,
+		    gen_rtx (CLOBBER, stack_pointer_rtx),
 		    CALL_INSN_FUNCTION_USAGE (call_insn));
       stack_size -= RETURN_POPS_ARGS (funtype, stack_size);
       stack_size_rtx = GEN_INT (stack_size);