[Bug middle-end/111574] [14 Regression] Illegal instruction with "-O3 -fno-toplevel-reorder -fno-tree-bit-ccp -fno-tree-dce"

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111574

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
What is happening is:
```
  if (_1 != 0)
    goto <bb 6>; [INV]
  else
    goto <bb 7>; [INV]

  <bb 6> :
  _28 = (uint8_t) _1;
  // predicted unlikely by early return (on trees) predictor.
  goto <bb 8>; [INV]

  <bb 7> :
  _7 = func_34 (0);

  <bb 8> :
  # _17 = PHI <_28(6), 0(7)>
```

Is being converted into:
```
  if (_1 != 0)
    goto <bb 6>; [INV]
  else
    goto <bb 7>; [INV]

  <bb 6> :
  // predicted unlikely by early return (on trees) predictor.
  goto <bb 8>; [INV]

  <bb 7> :
  _7 = func_34 (0);

  <bb 8> :
  # _new = PHI <_1(6), 0(7)>
  _17 = (uint8_t) _new;
```

And then incorrectly into:
```
  _7 = func_34 (0);
  _17 = (uint8_t) _1;
```
Removing the if statement.
The same way as the other bug is being incorrectly handled too.