On 09/03/2018 12:39, Florian Weimer wrote: > On 03/09/2018 11:28 AM, Mason wrote: > >> IIUC, it's the callee's responsibility to align the stack. > > On GNU, the caller has to provide 16-byte alignment. Beyond that, the > callee has to do its own thing, but it can (and will) assume 16 byte > alignment (i.e., %rsp + 8 is a multiple of 16). Thanks for clearing that up. The main question remains: why is gcc allocating e.g. 24 bytes for an 8-byte array? (N=2) 8 bytes are enough AFAICT. Regards.
