https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71660
--- Comment #10 from Thiago Macieira <thiago at kde dot org> --- Actually, PR 65146 points out that the problem is not efficiency but correctness. An under-aligned type could cross a cacheline boundary and thus fail to be atomic in the first place. Therefore, it is correct to increase the alignment, even if that causes an ABI change for existing structures. Those structures were disasters waiting to happen. I withdraw my bug report. Close it as INVALID or NOTABUG or whatever is appropriate.
