[Bug target/84522] GCC does not generate cmpxchg16b when mcx16 is used

pinskia at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Thu Feb 22 20:49:00 GMT 2018


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84522

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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          Component|c                           |target

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
IIRC this was done because there is no atomic load/stores or a way to do
backwards compatible.


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