Particularly around alignment - it could be that your compiler is emitting instructions that can deal with it, but in a sub-optimal way such that there is a per

Particularly around alignment - it could be that your compiler is emitting instructions that can deal with it, but in a sub-optimal way such that there is a performance penalty. On other platforms, that sort of behavior may cause a compilation failure, or the bugs they cause create bigger (and more noticeable) issues.