[Bug tree-optimization/78810] [7 Regression] Optimized out volatile memory access

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78810

--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to Markus Trippelsdorf from comment #4)
> They invoke undefined behavior by using misaligned accesses, see:
> https://bugs.ruby-lang.org/issues/11831
> 
> It was fixed once, but they dropped the fix in the current versions.

Great, let's wait for another fix ;)