[Bug target/102218] 128-bit atomic compare and exchange does not honor memory model on AArch64 and Arm

[tnfchris at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102218

--- Comment #4 from Tamar Christina <tnfchris at gcc dot gnu.org> ---
(In reply to ktkachov from comment #3)
> Does this need to be backported to other release versions as it's a
> wrong-code bug?

Yes Ideally. I did ask for backport but was only approved for master.