[PATCH] D47763: [X86] Explicitly mark unsupported zmm classes in scheduling models.

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added inline comments.


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Comment at: lib/Target/X86/X86SchedHaswell.td:144
+defm : HWWriteResPair<WriteFSqrt64Z, [], 0>;
+defm : HWWriteResPair<WriteFSqrtZ, [], 0>;
+}  // Unsupported
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RKSimon wrote:
> This is going to be a problem for KNL.......
Until KNL moves to its own model (PR26418) the HSW model is going to have to be left in a similar state to SNB,


Repository:
  rL LLVM

https://reviews.llvm.org/D47763