https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104595
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Last reconfirmed| |2022-02-18
Blocks| |53947
Keywords| |missed-optimization
Status|UNCONFIRMED |NEW
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. I think this is a omission somewhere in bool pattern recog since
we need a
tem = pb[i] != 0 ? -1 : 0;
kind of computation to generate a mask suitable for vectorization here. We
might have a duplicate bugreport as well.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947
[Bug 53947] [meta-bug] vectorizer missed-optimizations
