gcc/testsuite/gcc.dg/20061124-1.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target sync_char_short } */
   3
   4 /* This testcase failed on s390 because no compare instruction for
   5    the check of FLAG was emitted.  */
   6
   7 unsigned short int count = 0;
   8 int flag = 1;
   9
  10 extern void abort (void);
  11 extern void exit (int);
  12
  13 int
  14 main ()
  15 {
  16   __sync_add_and_fetch (&count, -1);
  17
  18   if (!flag)
  19     abort ();
  20   exit (0);
  21 }