gcc/testsuite/gcc.dg/torture/pr75964.c

   1 /* { dg-do run } */
   2
   3 typedef __UINT8_TYPE__ uint8_t;
   4
   5 uint8_t __attribute__ ((noinline, noclone))
   6 abs8 (uint8_t x)
   7 {
   8   if (x & 0x80)
   9     x = -x;
  10
  11   if (x & 0x80)
  12     x = 0x7f;
  13
  14   return x;
  15 }
  16
  17 int
  18 main (void)
  19 {
  20   if (abs8 (0) != 0
  21       || abs8 (1) != 1
  22       || abs8 (127) != 127
  23       || abs8 (128) != 127
  24       || abs8 (129) != 127
  25       || abs8 (255) != 1)
  26     __builtin_abort ();
  27   return 0;
  28 }