[Bug tree-optimization/120616] Incorrect code with -O3 and compound literal

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120616

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
changing the type of the compound literal to `long[]` instead of `long long[]`
works.
Also using -fno-strict-aliasing also allows the code to do the "right thing".