[PATCH] D107228: [TTI] Add basic SK_InsertSubvector shuffle mask recognition

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 363318.
RKSimon added a reviewer: foad.
RKSimon added a comment.
Herald added subscribers: kerbowa, nhaehnle, jvesely.

Treat a 'subvector widening' shuffle as free - this introduces what I think are benign changes to a amdgpu test


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D107228/new/

https://reviews.llvm.org/D107228

Files:
  llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
  llvm/include/llvm/IR/Instructions.h
  llvm/lib/IR/Instructions.cpp
  llvm/lib/Target/X86/X86TargetTransformInfo.cpp
  llvm/test/Analysis/CostModel/AMDGPU/shufflevector.ll
  llvm/test/Analysis/CostModel/ARM/shuffle.ll
  llvm/test/Analysis/CostModel/X86/shuffle-insert_subvector.ll

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