https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104688
--- Comment #30 from Florian Weimer <fw at gcc dot gnu.org> --- (In reply to Segher Boessenkool from comment #29) > (In reply to Florian Weimer from comment #28) > > Maybe this belongs in the ABI manual? For example, the POWER ABI says that > > memcpy needs to work on device memory. > > Huh?! > > Where do you see this? The way you state it it is trivially impossible to > implement, so if we really say that it needs fixing asap. I thought I had an explicit documented reference somewhere, but for now, all we have is an undocumented requirement (so not a good example in the context of this bug at all): [PATCH] powerpc: Use aligned stores in memset <https://inbox.sourceware.org/libc-alpha/1503033107-20047-1-git-send-email-r...@linux.vnet.ibm.com/> (There's also a CPU quirk in this area, but I think this wasn't about that.)
