https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88398
--- Comment #34 from Wilco <wilco at gcc dot gnu.org> --- (In reply to Jiu Fu Guo from comment #33) > It would be relatively easy if the target supports unaligned access. like > read64ne in > https://git.tukaani.org/?p=xz.git;a=blob;f=src/liblzma/common/memcmplen.h > Then the alignment issue is relaxed. It may be safer if we can > prove/assume the underlying buffer is enough, like array accessing or > pointer+index accessing in a loop. Yes, without unaligned support you can't use a wider access. If we can't prove the buffer bounds then we'd have to use a page cross check before every unaligned access.
