qemu

FORK: QEMU emulator
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check_gcctorture_pr28634.c (377B)

      1 /* PR rtl-optimization/28634.  On targets with delayed branches,
      2    dbr_schedule could do the next iteration's addition in the
      3    branch delay slot, then subtract the value again if the branch
      4    wasn't taken.  This can lead to rounding errors.  */
      5 double x = -0x1.0p53;
      6 double y = 1;
      7 int
      8 main (void)
      9 {
     10   while (y > 0)
     11     y += x;
     12   if (y != x + 1)
     13     abort ();
     14   exit (0);
     15 }