[Bug tree-optimization/116098] [14/15 Regression] _Bool value from tagged union is incorrect when built with optimization since r14-1597-g64d90d06d2db43

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116098

--- Comment #20 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #19)
> Created attachment 59252 [details]
> Patch which I am testing
> 
> This is the simple patch which I mentioned in comment #18 . I still need to
> add testcases.

I forgot to mention it does fix the testcase in comment #15.
```
rewriting stmt with undefined VCE. _4 = VIEW_CONVERT_EXPR<_Bool>(value$8_11);
...
  _4 = (_Bool) value$8_11;
```