gcc/testsuite/gcc.dg/torture/pr110176.c

   1 /* { dg-do run } */
   2
   3 int f(_Bool t)
   4 {
   5         int tt = t;
   6         unsigned x = -1;
   7         int xx = x;
   8         return xx <= tt;
   9 }
  10
  11 int a, b;
  12 void c() {}
  13 __attribute__((noipa))
  14 void h() {__builtin_abort();}
  15 int d() {
  16   unsigned f[1];
  17   int i;
  18   if (a)
  19     goto h;
  20   f[0] = -1;
  21   while (1) {
  22     c();
  23     for (; a < 1; a++) {
  24       if (0) {
  25       j:
  26         continue;
  27       }
  28       i = f[0];
  29       if (a)
  30         break;
  31       b = i >= (b == 0);
  32     }
  33     if (!b) {
  34       if (0) {
  35       h:
  36         goto j;
  37       }
  38       return 0;
  39     }
  40     h();
  41   }
  42 }
  43 int main() {
  44   d();
  45   return 0;
  46 }