[PATCH] D104801: [MemCpyOpt] Enable memcpy optimization for NVPTX back-end.

[Artem Belevich via Phabricator via llvm-commits]

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Normally NVPTX does not enable library functions and that disables
MemCpyOptimizer. This patch adds a TTI knob to enable the pass despite not
having the library functions for memcpy/memset.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D104801

Files:
  llvm/include/llvm/Analysis/TargetTransformInfo.h
  llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
  llvm/include/llvm/Transforms/Scalar/MemCpyOptimizer.h
  llvm/lib/Analysis/TargetTransformInfo.cpp
  llvm/lib/Target/NVPTX/NVPTXTargetTransformInfo.h
  llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp

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