[Bug c/92324] [10 Regression] ICE in expand_direct_optab_fn, at internal-fn.c:2890

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92324

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Related, the following is miscompiled at -O3.

unsigned b[1024];

int __attribute__((noipa))
foo (int n)
{
  int res = 0;
  for (int i = 0; i < n; ++i)
    {
      res = res > b[i] ? res : b[i];
    }
  return res;
}

int main ()
{
  b[3] = (unsigned)__INT_MAX__ + 1;
  if (foo (4) != -__INT_MAX__ - 1)
    __builtin_abort ();
  return 0;
}