mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-13 20:32:21 +00:00
cd52a7a381
Apparently, the style needs to be agreed upon first. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240390 91177308-0d34-0410-b5e6-96231b3b80d8
57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
//=-- InstrProfIndexed.h - Indexed profiling format support -------*- C++ -*-=//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Shared header for the instrumented profile data reader and writer.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LIB_PROFILEDATA_INSTRPROFINDEXED_H
|
|
#define LLVM_LIB_PROFILEDATA_INSTRPROFINDEXED_H
|
|
|
|
#include "llvm/Support/Endian.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
#include "llvm/Support/MD5.h"
|
|
|
|
namespace llvm {
|
|
|
|
namespace IndexedInstrProf {
|
|
enum class HashT : uint32_t {
|
|
MD5,
|
|
|
|
Last = MD5
|
|
};
|
|
|
|
static inline uint64_t MD5Hash(StringRef Str) {
|
|
MD5 Hash;
|
|
Hash.update(Str);
|
|
llvm::MD5::MD5Result Result;
|
|
Hash.final(Result);
|
|
// Return the least significant 8 bytes. Our MD5 implementation returns the
|
|
// result in little endian, so we may need to swap bytes.
|
|
using namespace llvm::support;
|
|
return endian::read<uint64_t, little, unaligned>(Result);
|
|
}
|
|
|
|
static inline uint64_t ComputeHash(HashT Type, StringRef K) {
|
|
switch (Type) {
|
|
case HashT::MD5:
|
|
return IndexedInstrProf::MD5Hash(K);
|
|
}
|
|
llvm_unreachable("Unhandled hash type");
|
|
}
|
|
|
|
const uint64_t Magic = 0x8169666f72706cff; // "\xfflprofi\x81"
|
|
const uint64_t Version = 2;
|
|
const HashT HashType = HashT::MD5;
|
|
}
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|