https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120616
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |INVALID
Status|UNCONFIRMED |RESOLVED
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
There is an aliasing issue in the code.
(long *)(long long[]){0, 0}
gets passed to func as the argument `long *o`.
And then o is read as:
```
if (*o < 1) {
```
But the compound literal type was `long long[2]` and was written to as `long
long` and then it is read as `long` but that is undefined behavior there.
