[PATCH] D142274: [ADT] Add llvm::byteswap to bit.h

[Kazu Hirata via Phabricator via llvm-commits]

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This patch adds C++23-style byteswap to bit.h.

The implementation and tests are largely taken from
llvm/include/llvm/Support/MathExtras.h and
llvm/unittests/Support/SwapByteOrderTest.cpp, respectively.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D142274

Files:
  llvm/include/llvm/ADT/bit.h
  llvm/unittests/ADT/BitTest.cpp

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