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

   1 /* PR tree-optimization/60003 */
   2 /* { dg-require-effective-target indirect_jumps } */
   3
   4 extern void abort (void);
   5
   6 unsigned long long jmp_buf[5];
   7
   8 __attribute__((noinline, noclone)) void
   9 baz (void)
  10 {
  11   __builtin_longjmp (&jmp_buf, 1);
  12 }
  13
  14 void
  15 bar (void)
  16 {
  17   baz ();
  18 }
  19
  20 __attribute__((noinline, noclone)) int
  21 foo (int x)
  22 {
  23   int a = 0;
  24
  25   if (__builtin_setjmp (&jmp_buf) == 0)
  26     {
  27       while (1)
  28         {
  29           a = 1;
  30           bar ();  /* OK if baz () instead */
  31         }
  32     }
  33   else
  34     {
  35       if (a == 0)
  36         return 0;
  37       else
  38         return x;
  39     }
  40 }
  41
  42 int
  43 main ()
  44 {
  45   if (foo (1) == 0)
  46     abort ();
  47
  48   return 0;
  49 }