--- /dev/null
+/* Copyright (C) 2000 Free Software Foundation.
+
+ by Alexandre Oliva <oliva@lsd.ic.unicamp.br> */
+
+/* { dg-do run } */
+/* { dg-options "-O3" } */
+
+void foo () {} /* unused, but essential to trigger the bug */
+
+int main () {
+ int i;
+ /* use asms to prevent optimizations */
+ /* i = -1; */ asm ("" : "=r" (i) : "0" (-1));
+ /* i = 1; */ asm ("" : "=r" (i) : "0" (i ? 1 : 2));
+ if (i != 1)
+ abort();
+}