[PATCH] D71883: [PowerPC] Use PredictableSelectIsExpensive to enable select to branch in CGP

Zhang Kang via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Sun Feb 16 19:03:07 PST 2020


ZhangKang marked an inline comment as done.
ZhangKang added inline comments.


================
Comment at: llvm/lib/Target/PowerPC/PPC.td:288
+     FeatureISA3_0,
+     FeaturePredictableSelectIsExpensive
+     ];
----------------
ZhangKang wrote:
> nemanjai wrote:
> > This should certainly be set for Power8 as well.
> I haven't do the performance for the Power8, so I only enable it for Power9. 
Have set the `FeaturePredictableSelectIsExpensive` for Power8.


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