gcc/testsuite/gcc.c-torture/execute/pr65053-1.c

   1 /* PR tree-optimization/65053 */
   2
   3 int i;
   4
   5 __attribute__ ((noinline, noclone))
   6 unsigned int foo (void)
   7 {
   8   return 0;
   9 }
  10
  11 int
  12 main ()
  13 {
  14   unsigned int u = -1;
  15   if (u == -1)
  16     {
  17       unsigned int n = foo ();
  18       if (n > 0)
  19         u = n - 1;
  20     }
  21
  22   while (u != -1)
  23     {
  24       asm ("" : "+g" (u));
  25       u = -1;
  26       i = 1;
  27     }
  28
  29   if (i)
  30     __builtin_abort ();
  31   return 0;
  32 }