[llvm-branch-commits] [llvm] [Support] Integrate SipHash.cpp into libSupport. (PR #94394)

[Kristof Beyls via llvm-branch-commits]

================
@@ -1,25 +1,19 @@
-/*
-   SipHash reference C implementation
-
-   Copyright (c) 2012-2022 Jean-Philippe Aumasson
-   <jeanphilippe.aumasson at gmail.com>
-   Copyright (c) 2012-2014 Daniel J. Bernstein <djb at cr.yp.to>
-
-   To the extent possible under law, the author(s) have dedicated all copyright
-   and related and neighboring rights to this software to the public domain
-   worldwide. This software is distributed without any warranty.
-
-   You should have received a copy of the CC0 Public Domain Dedication along
-   with
-   this software. If not, see
-   <http://creativecommons.org/publicdomain/zero/1.0/>.
- */
+//===--- SipHash.cpp - An ABI-stable string hash --------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
 
 #include "siphash.h"
 #include <assert.h>
 #include <stddef.h>
 #include <stdint.h>
 
+// Lightly adapted from the SipHash reference C implementation by
+// Jean-Philippe Aumasson and Daniel J. Bernstein.
----------------
kbeyls wrote:

It might be worthwhile to also add the link to the upstream repo in this comment: https://github.com/veorq/SipHash?

https://github.com/llvm/llvm-project/pull/94394