[Bug tree-optimization/79244] [7 Regression] ice in replace_uses_by, at tree-cfg.c:1866

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79244

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Slightly cleaned up testcase:
long buf[5];
int bar (void);

int
foo (int x)
{
  int y = __builtin_setjmp (buf);
  while (x != 3 && x && x && x != 2)
    x = bar ();
  return y;
}