[Bug middle-end/102285] New flag -ftrivial-auto-var-init=zero causes crash in pr82421.c

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102285

--- Comment #21 from Richard Biener <rguenth at gcc dot gnu.org> ---
Reduced testcase:

int
qy (void)
{
  int tw = 4;
  int fb[tw];
  return fb[2];
}