gcc/testsuite/gcc.dg/torture/pr99947.c

/* { dg-do compile } */

int a, b, d, e;
short c;
void f() {
  for (; e; e++) {
    int g = 6;
    for (; g > 2; g--) {
      int i = -8;
      while (i < 20) {
        i += 5;
        a += b;
      }
      c *= d;
    }
    b--;
  }
}