gcc/testsuite/gcc.c-torture/execute/pr60003.c

   1 /* PR tree-optimization/60003 */
   2
   3 extern void abort (void);
   4
   5 unsigned long long jmp_buf[5];
   6
   7 __attribute__((noinline, noclone)) void
   8 baz (void)
   9 {
  10   __builtin_longjmp (&jmp_buf, 1);
  11 }
  12
  13 void
  14 bar (void)
  15 {
  16   baz ();
  17 }
  18
  19 __attribute__((noinline, noclone)) int
  20 foo (int x)
  21 {
  22   int a = 0;
  23
  24   if (__builtin_setjmp (&jmp_buf) == 0)
  25     {
  26       while (1)
  27         {
  28           a = 1;
  29           bar ();  /* OK if baz () instead */
  30         }
  31     }
  32   else
  33     {
  34       if (a == 0)
  35         return 0;
  36       else
  37         return x;
  38     }
  39 }
  40
  41 int
  42 main ()
  43 {
  44   if (foo (1) == 0)
  45     abort ();
  46
  47   return 0;
  48 }