[PATCH] D138652: [SVE][AArch64] Use WHILEWR to check write-after-read conflicts

[Allen zhong via Phabricator via llvm-commits]

Allen created this revision.
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In AArch64 target, the WHILEWR instructiuon is enable in sve2.


https://reviews.llvm.org/D138652

Files:
  llvm/include/llvm/Analysis/TargetTransformInfo.h
  llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
  llvm/include/llvm/CodeGen/BasicTTIImpl.h
  llvm/include/llvm/IR/Intrinsics.td
  llvm/include/llvm/Transforms/Utils/LoopUtils.h
  llvm/lib/Analysis/TargetTransformInfo.cpp
  llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
  llvm/lib/Target/AArch64/AArch64TargetTransformInfo.h
  llvm/lib/Transforms/Utils/LoopUtils.cpp
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/test/Transforms/LoopVectorize/AArch64/sve2-runtime-check-size-based-threshold.ll

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