llvm/llvm/lib/Support/DJB.cpp

//===-- Support/DJB.cpp ---DJB Hash -----------------------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file contains support for the DJ Bernstein hash function.
//
//===----------------------------------------------------------------------===//

#include "llvm/Support/DJB.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/ConvertUTF.h"
#include "llvm/Support/Unicode.h"

usingnamespacellvm;

static UTF32 chopOneUTF32(StringRef &Buffer) { … }

static StringRef toUTF8(UTF32 C, MutableArrayRef<UTF8> Storage) { … }

static UTF32 foldCharDwarf(UTF32 C) { … }

static std::optional<uint32_t> fastCaseFoldingDjbHash(StringRef Buffer,
                                                      uint32_t H) { … }

uint32_t llvm::caseFoldingDjbHash(StringRef Buffer, uint32_t H) { … }