[Bug tree-optimization/111003] [14 Regression] Dead Code Elimination Regression at -O3 since r14-2161-g237e83e2158

["pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111003

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2023-08-12
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmned.
The good news is the issue can be reproduced even without < (replaced with !&)
and m being initialized:
```
static int c, d, e, f;
static short g;
static int *h = &c;
void foo(void);
short(a)();
static unsigned b(unsigned char j, int l) { return j > l ? j : j << l; }
static int *i();
static void k(int j, unsigned char l) {
  i();
  g = f;
  f = g;
  for (; g;) {
    int m = 0;
    d = a();
    for (; d;) {
      if (l)
        if (!(j >= -639457069 && j <= -639457069))
          if (m)
            foo();
      m = !(10 != (l ^ b(j, 6))) & (0 > e);
    }
  }
}
static int *i() {
  for (; e; e = a(e, 6))
    ;
  return h;
}
int main() { k(c, c); }
```