gcc/testsuite/gcc.dg/pr97567.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2" } */
   3
   4 int a, b, c, d;
   5 void k() {
   6   unsigned f = 1;
   7   long long g = 4073709551615;
   8   for (; a; a++)
   9     for (;;) {
  10       d = 0;
  11     L1:
  12       break;
  13     }
  14   if (f)
  15     for (; a; a++)
  16       ;
  17   g || f;
  18   int i = 0 - f || g;
  19   long long j = g - f;
  20   if (j || f) {
  21     if (g < 4073709551615)
  22       for (;;)
  23         ;
  24     int e = ~f, h = b / ~e;
  25     if (c)
  26       goto L2;
  27     g = f = h;
  28   }
  29   g || d;
  30 L2:
  31   if (c)
  32     goto L1;
  33 }
  34 int main() { k(); return 0; }