[all-commits] [llvm/llvm-project] 51f7b2: [libc][support][UInt] implement 128b math helpers ...

[Nick Desaulniers via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 51f7b262425959d4e2bd6bc79fed283586d0472e
      https://github.com/llvm/llvm-project/commit/51f7b262425959d4e2bd6bc79fed283586d0472e
  Author: Nick Desaulniers <nickdesaulniers at users.noreply.github.com>
  Date:   2024-03-27 (Wed, 27 Mar 2024)

  Changed paths:
    M libc/src/__support/CPP/bit.h
    M libc/src/__support/UInt.h
    M libc/test/src/__support/CPP/bit_test.cpp
    M libc/test/src/__support/math_extras_test.cpp

  Log Message:
  -----------
  [libc][support][UInt] implement 128b math helpers (#86531)

Flush out the remaining UInt<128> support and add test coverage.

We could have used cpp::popcount in the implementation of
UInt::has_single_bit, but
has_single_bit has a perhaps useful early return.



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