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[X86][NFC] Add a `use-aa` feature.

Authored by courbet on Fri, Sep 6, 5:40 AM.



This allows enabling useaa on the command-line and will allow enabling the
feature on a per-CPU basis where benchmarking shows improvements.

This is modelled after the ARM/AArch64 target.

Event Timeline

courbet created this revision.Fri, Sep 6, 5:40 AM

Makes sense to me - any one else have any comments?

RKSimon accepted this revision.Fri, Sep 13, 9:13 AM


This revision is now accepted and ready to land.Fri, Sep 13, 9:13 AM