[PATCH] D98469: [NVPTX] Avoid temp copy of byval kernel parameters.

[Artem Belevich via Phabricator via llvm-commits]

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Avoid making a temporary copy of byval argument if all accesses are loads and therefore the pointer to the parameter can not escape.

This avoids excessive global memory accesses when each kernel makes its own copy.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D98469

Files:
  llvm/lib/Target/NVPTX/NVPTXLowerArgs.cpp
  llvm/test/CodeGen/NVPTX/lower-byval-args.ll

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