[PATCH] D144570: [X86] Add support for using Sched/Codesize information to `X86FixupInstTuning` Pass.

[Noah Goldstein via Phabricator via llvm-commits]

goldstein.w.n created this revision.
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Use this to handle new transform: `{v}unpck{l|h}pd` -> `{v}shufps`. We
need the sched information here as `{v}shufps` is 1 more byte of code
size, so we only want to make this transformation if `{v}shufps` is
actually faster.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D144570

Files:
  llvm/lib/Target/X86/X86FixupInstTuning.cpp
  llvm/test/CodeGen/X86/tuning-shuffle-unpckpd.ll

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