[Bug tree-optimization/88398] vectorization failure for a small loop to do byte comparison

guojiufu at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Thu May 28 02:30:38 GMT 2020


--- Comment #33 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> ---
It would be relatively easy if the target supports unaligned access.  like
read64ne in
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.

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