https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115693
Hongtao Liu <liuhongt at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |liuhongt at gcc dot gnu.org
--- Comment #6 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---
> >
> > So it makes more sense to fix this in the optimization passes, instead of
> > ad-hoc hack in libstdc++.
> >
> > But I'm not sure if there already exists a dup.
>
> Let's keep this bug for the above testcase(s). For test() the issue is
> that even with SSE4.1 we don't seem to support ptest for V8QImode?
With SSE4.1 and above, We can support cbranchv8qi(and other 32/64-bit vector)
with pmovzxv8qiv8hi + cbranchv8hi.
