[Bug tree-optimization/87186] Does not inline constant to simplify bitwise expression

[glisse at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87186

--- Comment #6 from Marc Glisse <glisse at gcc dot gnu.org> ---
In some sense, the bug is that .original is optimized at all, ideally it would
be the "original" unoptimized code. It is convenient to start optimizing single
expressions early, so we do it, but that's it.