[libc-commits] [PATCH] D114637: [libc] Optimized version of memmove

[Guillaume Chatelet via Phabricator via libc-commits]

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This implementation relies on storing data in registers for sizes up to 128B.
Then depending on whether `dst` is less (resp. greater) than `src` we move data forward (resp. backward) by chunks of 32B.
We first make sure one of the pointers is aligned to increase performance on large move sizes.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D114637

Files:
  libc/src/__support/CPP/ArrayRef.h
  libc/src/string/CMakeLists.txt
  libc/src/string/memmove.cpp
  libc/src/string/memory_utils/elements.h
  libc/test/src/string/memmove_test.cpp

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