[PATCH] D114779: [LV][X86] Sink `LoopVectorizationCostModel::useEmulatedMaskMemRefHack()` further into TTI, disable for X86/AVX2+

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri updated this revision to Diff 391129.
lebedev.ri edited the summary of this revision.
lebedev.ri added a comment.

Hide the problem by defaulting `TargetTransformInfoImplBase::useEmulatedMaskMemRefHack()` to `true`.
If no triple is specifically requested, that is the TTI that is used.
This highlights that those tests are somewhat of a lie,
and raises questions about the implementation of those features.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D114779/new/

https://reviews.llvm.org/D114779

Files:
  llvm/include/llvm/Analysis/TargetTransformInfo.h
  llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
  llvm/include/llvm/CodeGen/BasicTTIImpl.h
  llvm/lib/Analysis/TargetTransformInfo.cpp
  llvm/lib/Target/X86/X86TargetTransformInfo.cpp
  llvm/lib/Target/X86/X86TargetTransformInfo.h
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/test/Analysis/CostModel/X86/masked-gather-i32-with-i8-index.ll
  llvm/test/Analysis/CostModel/X86/masked-gather-i64-with-i8-index.ll
  llvm/test/Analysis/CostModel/X86/masked-interleaved-load-i16.ll
  llvm/test/Analysis/CostModel/X86/masked-interleaved-store-i16.ll
  llvm/test/Analysis/CostModel/X86/masked-load-i16.ll
  llvm/test/Analysis/CostModel/X86/masked-load-i8.ll
  llvm/test/Transforms/LoopVectorize/X86/gather_scatter.ll
  llvm/test/Transforms/LoopVectorize/X86/x86-interleaved-accesses-masked-group.ll

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