[Bug middle-end/112444] [14 regression] ICE when buliding libqmi with -O3 -ftrivial-auto-var-init=zero (internal compiler error: tree check: expected class ‘type’, have ‘exceptional’ (error_mark) in useless_type_conversion_p, at gimple-expr.cc:85)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112444

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
           Keywords|                            |ice-on-valid-code
             Status|UNCONFIRMED                 |NEW
   Target Milestone|---                         |14.0
   Last reconfirmed|                            |2023-11-09

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
```
  <bb 3> [local count: 57140633]:
  # ivtmp_62 = PHI <44(2), ivtmp_72(8)>
  _7 = .DEFERRED_INIT (1, 2, &"tmp"[0]);
...
  <bb 5> [local count: 57140633]:
  # _59 = PHI <_7(3), _54(4)>

  <bb 6> [local count: 877722739]:
  # ivtmp_8 = PHI <444(5), ivtmp_63(7)>
  tmp = _59;
```

defining statement of _54 is nowhere to be found.

Note this ICEs still even with -fno-checking