[Bug tree-optimization/108523] [13 Regression] -O1 -fcode-hoisting causes long compilation time ?

[dcb314 at hotmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108523

--- Comment #16 from David Binderman <dcb314 at hotmail dot com> ---
cvise produces:

int g_149, g_167, g_481;
main() {
  int *l_1478 = &g_149;
  *l_1478 ^= g_167;
lbl_1481:
  for (;;) {
    g_481 = 1;
    for (; g_481; g_481 += 1) {
      g_167 ^= *l_1478;
      if (g_149)
        goto lbl_1481;
    }
  }
}