#pragma once
#if ENABLE(B3_JIT)
#include "CPU.h"
#include "GPRInfo.h"
#include "JSExportMacros.h"
#include "Options.h"
namespace JSC { namespace B3 {
extern const char* const tierName;
enum B3CompilationMode {
B3Mode,
AirMode
};
JS_EXPORT_PRIVATE bool shouldDumpIR(B3CompilationMode);
bool shouldDumpIRAtEachPhase(B3CompilationMode);
bool shouldValidateIR();
bool shouldValidateIRAtEachPhase();
bool shouldSaveIRBeforePhase();
template<typename BitsType, typename InputType>
inline bool isIdentical(InputType left, InputType right)
{
BitsType leftBits = bitwise_cast<BitsType>(left);
BitsType rightBits = bitwise_cast<BitsType>(right);
return leftBits == rightBits;
}
inline bool isIdentical(int32_t left, int32_t right)
{
return isIdentical<int32_t>(left, right);
}
inline bool isIdentical(int64_t left, int64_t right)
{
return isIdentical<int64_t>(left, right);
}
inline bool isIdentical(double left, double right)
{
return isIdentical<int64_t>(left, right);
}
inline bool isIdentical(float left, float right)
{
return isIdentical<int32_t>(left, right);
}
template<typename ResultType, typename InputType, typename BitsType>
inline bool isRepresentableAsImpl(InputType originalValue)
{
ResultType result = static_cast<ResultType>(originalValue);
InputType newValue = static_cast<InputType>(result);
return isIdentical<BitsType>(originalValue, newValue);
}
template<typename ResultType>
inline bool isRepresentableAs(int32_t value)
{
return isRepresentableAsImpl<ResultType, int32_t, int32_t>(value);
}
template<typename ResultType>
inline bool isRepresentableAs(int64_t value)
{
return isRepresentableAsImpl<ResultType, int64_t, int64_t>(value);
}
template<typename ResultType>
inline bool isRepresentableAs(size_t value)
{
return isRepresentableAsImpl<ResultType, size_t, size_t>(value);
}
template<typename ResultType>
inline bool isRepresentableAs(double value)
{
return isRepresentableAsImpl<ResultType, double, int64_t>(value);
}
template<typename IntType>
static IntType chillDiv(IntType numerator, IntType denominator)
{
if (!denominator)
return 0;
if (denominator == -1 && numerator == std::numeric_limits<IntType>::min())
return std::numeric_limits<IntType>::min();
return numerator / denominator;
}
template<typename IntType>
static IntType chillMod(IntType numerator, IntType denominator)
{
if (!denominator)
return 0;
if (denominator == -1 && numerator == std::numeric_limits<IntType>::min())
return 0;
return numerator % denominator;
}
template<typename IntType>
static IntType chillUDiv(IntType numerator, IntType denominator)
{
typedef typename std::make_unsigned<IntType>::type UnsignedIntType;
UnsignedIntType unsignedNumerator = static_cast<UnsignedIntType>(numerator);
UnsignedIntType unsignedDenominator = static_cast<UnsignedIntType>(denominator);
if (!unsignedDenominator)
return 0;
return unsignedNumerator / unsignedDenominator;
}
template<typename IntType>
static IntType chillUMod(IntType numerator, IntType denominator)
{
typedef typename std::make_unsigned<IntType>::type UnsignedIntType;
UnsignedIntType unsignedNumerator = static_cast<UnsignedIntType>(numerator);
UnsignedIntType unsignedDenominator = static_cast<UnsignedIntType>(denominator);
if (!unsignedDenominator)
return 0;
return unsignedNumerator % unsignedDenominator;
}
template<typename IntType>
static IntType rotateRight(IntType value, int32_t shift)
{
typedef typename std::make_unsigned<IntType>::type UnsignedIntType;
UnsignedIntType uValue = static_cast<UnsignedIntType>(value);
int32_t bits = sizeof(IntType) * 8;
int32_t mask = bits - 1;
shift &= mask;
return (uValue >> shift) | (uValue << ((bits - shift) & mask));
}
template<typename IntType>
static IntType rotateLeft(IntType value, int32_t shift)
{
typedef typename std::make_unsigned<IntType>::type UnsignedIntType;
UnsignedIntType uValue = static_cast<UnsignedIntType>(value);
int32_t bits = sizeof(IntType) * 8;
int32_t mask = bits - 1;
shift &= mask;
return (uValue << shift) | (uValue >> ((bits - shift) & mask));
}
inline unsigned defaultOptLevel()
{
return Options::defaultB3OptLevel();
}
Optional<GPRReg> pinnedExtendedOffsetAddrRegister();
} }
#endif // ENABLE(B3_JIT)