KCFIHash.cpp File Reference

#include "llvm/Transforms/Utils/KCFIHash.h"
#include "llvm/Support/Endian.h"
#include "llvm/Support/ErrorHandling.h"

Go to the source code of this file.

Functions
static uint64_t	rotl64 (uint64_t X, size_t R)
static uint64_t	round (uint64_t Acc, uint64_t Input)
static uint64_t	mergeRound (uint64_t Acc, uint64_t Val)
static uint64_t	avalanche (uint64_t H)
static uint64_t	xxHash64 (const uint8_t *P, size_t Len)

Variables
constexpr uint64_t	PRIME64_1 = 11400714785074694791ULL
constexpr uint64_t	PRIME64_2 = 14029467366897019727ULL
constexpr uint64_t	PRIME64_3 = 1609587929392839161ULL
constexpr uint64_t	PRIME64_4 = 9650029242287828579ULL
constexpr uint64_t	PRIME64_5 = 2870177450012600261ULL

Function Documentation

avalanche()

uint64_t avalanche ( uint64_t H )

static

Definition at line 43 of file KCFIHash.cpp.

References H, PRIME64_2, and PRIME64_3.

Referenced by xxHash64().

mergeRound()

uint64_t mergeRound ( uint64_t Acc, uint64_t Val )

static

Definition at line 36 of file KCFIHash.cpp.

References PRIME64_1, PRIME64_4, and round().

Referenced by xxHash64().

rotl64()

uint64_t rotl64 ( uint64_t X, size_t R )

static

Definition at line 19 of file KCFIHash.cpp.

References X.

Referenced by round(), and xxHash64().

round()

uint64_t round ( uint64_t Acc, uint64_t Input )

static

Definition at line 29 of file KCFIHash.cpp.

References PRIME64_1, PRIME64_2, and rotl64().

Referenced by llvm::sampleprof::DefaultFunctionPruningStrategy::Erase(), llvm::getHeatColor(), mergeRound(), round_fn(), llvm::APInt::sqrt(), and xxHash64().

xxHash64()

uint64_t xxHash64 ( const uint8_t * P, size_t Len )

static

Definition at line 52 of file KCFIHash.cpp.

References avalanche(), mergeRound(), P, PRIME64_1, PRIME64_2, PRIME64_3, PRIME64_4, PRIME64_5, llvm::support::endian::read32le(), llvm::support::endian::read64le(), rotl64(), and round().

Variable Documentation

PRIME64_1

uint64_t PRIME64_1 = 11400714785074694791ULL

constexpr

Definition at line 23 of file KCFIHash.cpp.

PRIME64_2

uint64_t PRIME64_2 = 14029467366897019727ULL

constexpr

Definition at line 24 of file KCFIHash.cpp.

PRIME64_3

uint64_t PRIME64_3 = 1609587929392839161ULL

constexpr

Definition at line 25 of file KCFIHash.cpp.

PRIME64_4

uint64_t PRIME64_4 = 9650029242287828579ULL

constexpr

Definition at line 26 of file KCFIHash.cpp.

PRIME64_5

uint64_t PRIME64_5 = 2870177450012600261ULL

constexpr

Definition at line 27 of file KCFIHash.cpp.