gcc-4.9/gcc/testsuite/gcc.dg/20040331-1.c


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/* { dg-do run } */
/* { dg-options "-O2 -fwrapv" } */

extern void abort (void);
extern void exit (int);

int
main (void)
{
  struct { int count: 2; } s = { -2 };
  while (s.count-- != -2)
    abort ();
  exit (0);
}