[Bug target/82735] _mm256_zeroupper does not invalidate previously computed registers

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82735

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jakub at gcc dot gnu.org

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Last touched in PR99563.
I guess for the explicit user vzeroupper we need to add the clobbers/sets
earlier than in the vzeroupper pass, but ideally in a way that doesn't force
save/restore of registers that aren't really needed in the function.