[PATCH] D65892: [X86] Improve cost model for subvector extraction of less than 128-bit vectors

[Craig Topper via Phabricator via llvm-commits]

craig.topper updated this revision to Diff 214771.
craig.topper added a comment.

Directly compute the permute cost so that we don't have high cost for i8/i16 element extracts.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D65892/new/

https://reviews.llvm.org/D65892

Files:
  llvm/lib/Target/X86/X86TargetTransformInfo.cpp
  llvm/test/Analysis/CostModel/X86/shuffle-extract_subvector.ll

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