[all-commits] [llvm/llvm-project] 1e9a3f: [Support] Reformat SipHash.cpp to match libSupport.

[Ahmed Bougacha via All-commits]

  Branch: refs/heads/users/ahmedbougacha/integrate-siphash-into-libsupport
  Home:   https://github.com/llvm/llvm-project
  Commit: 1e9a3fde97d907c3cd6be33db91d1c18c7236ffb
      https://github.com/llvm/llvm-project/commit/1e9a3fde97d907c3cd6be33db91d1c18c7236ffb
  Author: Ahmed Bougacha <ahmed at bougacha.org>
  Date:   2024-06-04 (Tue, 04 Jun 2024)

  Changed paths:
    R llvm/lib/Support/README.md.SipHash
    M llvm/lib/Support/SipHash.cpp

  Log Message:
  -----------
  [Support] Reformat SipHash.cpp to match libSupport.

While there, give it our usual file header and an acknowledgement,
and remove the imported README.md.SipHash.


  Commit: 3d4f7dcaf8e9c4ad666f84b4ba7c8c742c336896
      https://github.com/llvm/llvm-project/commit/3d4f7dcaf8e9c4ad666f84b4ba7c8c742c336896
  Author: Ahmed Bougacha <ahmed at bougacha.org>
  Date:   2024-06-04 (Tue, 04 Jun 2024)

  Changed paths:
    M llvm/lib/Support/SipHash.cpp

  Log Message:
  -----------
  [Support] Remove SipHash tracing support.


  Commit: 6679d54b2d1b037c849aea3cf04507e5390adc49
      https://github.com/llvm/llvm-project/commit/6679d54b2d1b037c849aea3cf04507e5390adc49
  Author: Ahmed Bougacha <ahmed at bougacha.org>
  Date:   2024-06-04 (Tue, 04 Jun 2024)

  Changed paths:
    M llvm/lib/Support/CMakeLists.txt
    M llvm/lib/Support/SipHash.cpp

  Log Message:
  -----------
  [Support] Integrate SipHash.cpp into libSupport.

Start building it as part of the library, with some minor
tweaks compared to the reference implementation:
- templatize cROUNDS/dROUNDS, as well as 8B/16B result type
- replace assert with static_assert
- return the result directly, as uint64_t/uint128_t
- remove big-endian support
- use LLVM_FALLTHROUGH

The siphash function itself isn't used yet, and will be in a follow-up
commit.


Compare: https://github.com/llvm/llvm-project/compare/1d8561032aeb...6679d54b2d1b

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