https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82409
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
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Target| |x86_64-pc-linux-gnu
Component|c++ |target
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>Note pxor instructions in there to zero out the unused upper bits of xmm
>registers.
It could be done to avoid false dependencies on previous instructions which
touched xmm0/1 register.
