https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68030
amker at gcc dot gnu.org changed:
What |Removed |Added
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CC| |amker at gcc dot gnu.org
--- Comment #5 from amker at gcc dot gnu.org ---
(In reply to Kirill Yukhin from comment #4)
> Hello Bin,
> Is it possible to handle the issue using current ivopt?
Not yet I think. IIUC, this is the same issue as PR69710. We need to teach
vectorizer about CSE opportunities. I had a scratch patch fixing it in a way
just as mentioned in #comment2, I will revisit it after work on if-conversion.
According to Richard's comment, I may need to make it a general fix, for
example, share this facility among different optimizers that need to insert
code in pre-header.
Thanks.
