gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr60003.c


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/* PR tree-optimization/60003 */

extern void abort (void);

unsigned long long jmp_buf[5];

__attribute__((noinline, noclone)) void
baz (void)
{
  __builtin_longjmp (&jmp_buf, 1);
}

void
bar (void)
{
  baz ();
}

__attribute__((noinline, noclone)) int
foo (int x)
{
  int a = 0;

  if (__builtin_setjmp (&jmp_buf) == 0)
    {
      while (1)
	{
	  a = 1;
	  bar ();  /* OK if baz () instead */
	}
    }
  else
    {
      if (a == 0)
	return 0;
      else
	return x;
    }
}

int
main ()
{
  if (foo (1) == 0)
    abort ();

  return 0;
}