[PATCH] D51570: [X86][XOP] VFRCZ* instructions should be in their own sched class

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

In https://reviews.llvm.org/D51570#1282305, @RKSimon wrote:

> Abandon this?


The issue still is there, these are very different from the `WriteFRnd`.
https://github.com/llvm-mirror/llvm/blob/3a8afbd8a1a153d49969b13c1d8ba3858d860acd/lib/Target/X86/X86ScheduleBdVer2.td#L749-L779
Unless we prefer *lots* of `InstRW`, i should probably rebase this instead.


Repository:
  rL LLVM

https://reviews.llvm.org/D51570