https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115749
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
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Target| |X86_64
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This seems like a tuning issue. In that gcc thinks the shifts and stuff is
faster than mulx.
What happens if you do -march=native?
Does it use mulx?
