| // Copyright 2015 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_INTERPRETER_BYTECODE_TRAITS_H_ |
| #define V8_INTERPRETER_BYTECODE_TRAITS_H_ |
| |
| #include "src/interpreter/bytecodes.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace interpreter { |
| |
| template <OperandTypeInfo> |
| struct OperandTypeInfoTraits { |
| static const bool kIsScalable = false; |
| static const bool kIsUnsigned = false; |
| static const OperandSize kUnscaledSize = OperandSize::kNone; |
| }; |
| |
| #define DECLARE_OPERAND_TYPE_INFO(Name, Scalable, Unsigned, BaseSize) \ |
| template <> \ |
| struct OperandTypeInfoTraits<OperandTypeInfo::k##Name> { \ |
| static const bool kIsScalable = Scalable; \ |
| static const bool kIsUnsigned = Unsigned; \ |
| static const OperandSize kUnscaledSize = BaseSize; \ |
| }; |
| OPERAND_TYPE_INFO_LIST(DECLARE_OPERAND_TYPE_INFO) |
| #undef DECLARE_OPERAND_TYPE_INFO |
| |
| template <OperandType> |
| struct OperandTraits { |
| typedef OperandTypeInfoTraits<OperandTypeInfo::kNone> TypeInfo; |
| }; |
| |
| #define DECLARE_OPERAND_TYPE_TRAITS(Name, InfoType) \ |
| template <> \ |
| struct OperandTraits<OperandType::k##Name> { \ |
| typedef OperandTypeInfoTraits<InfoType> TypeInfo; \ |
| }; |
| OPERAND_TYPE_LIST(DECLARE_OPERAND_TYPE_TRAITS) |
| #undef DECLARE_OPERAND_TYPE_TRAITS |
| |
| template <OperandType operand_type, OperandScale operand_scale> |
| struct OperandScaler { |
| template <bool, OperandSize, OperandScale> |
| struct Helper { |
| static const int kSize = 0; |
| }; |
| template <OperandSize size, OperandScale scale> |
| struct Helper<false, size, scale> { |
| static const int kSize = static_cast<int>(size); |
| }; |
| template <OperandSize size, OperandScale scale> |
| struct Helper<true, size, scale> { |
| static const int kSize = static_cast<int>(size) * static_cast<int>(scale); |
| }; |
| |
| static const int kSize = |
| Helper<OperandTraits<operand_type>::TypeInfo::kIsScalable, |
| OperandTraits<operand_type>::TypeInfo::kUnscaledSize, |
| operand_scale>::kSize; |
| static const OperandSize kOperandSize = static_cast<OperandSize>(kSize); |
| }; |
| |
| template <OperandType> |
| struct RegisterOperandTraits { |
| static const int kIsRegisterOperand = 0; |
| }; |
| |
| #define DECLARE_REGISTER_OPERAND(Name, _) \ |
| template <> \ |
| struct RegisterOperandTraits<OperandType::k##Name> { \ |
| static const int kIsRegisterOperand = 1; \ |
| }; |
| REGISTER_OPERAND_TYPE_LIST(DECLARE_REGISTER_OPERAND) |
| #undef DECLARE_REGISTER_OPERAND |
| |
| template <AccumulatorUse, OperandType...> |
| struct BytecodeTraits {}; |
| |
| template <AccumulatorUse accumulator_use, OperandType operand_0, |
| OperandType operand_1, OperandType operand_2, OperandType operand_3> |
| struct BytecodeTraits<accumulator_use, operand_0, operand_1, operand_2, |
| operand_3> { |
| static const OperandType* GetOperandTypes() { |
| static const OperandType operand_types[] = {operand_0, operand_1, operand_2, |
| operand_3, OperandType::kNone}; |
| return operand_types; |
| } |
| |
| static OperandSize GetOperandSize(int i, OperandScale operand_scale) { |
| switch (operand_scale) { |
| #define CASE(Name, _) \ |
| case OperandScale::k##Name: { \ |
| static const OperandSize kOperandSizes[] = { \ |
| OperandScaler<operand_0, OperandScale::k##Name>::kOperandSize, \ |
| OperandScaler<operand_1, OperandScale::k##Name>::kOperandSize, \ |
| OperandScaler<operand_2, OperandScale::k##Name>::kOperandSize, \ |
| OperandScaler<operand_3, OperandScale::k##Name>::kOperandSize, \ |
| }; \ |
| DCHECK_LT(static_cast<size_t>(i), arraysize(kOperandSizes)); \ |
| return kOperandSizes[i]; \ |
| } |
| OPERAND_SCALE_LIST(CASE) |
| #undef CASE |
| } |
| UNREACHABLE(); |
| return OperandSize::kNone; |
| } |
| |
| template <OperandType ot> |
| static inline bool HasAnyOperandsOfType() { |
| return operand_0 == ot || operand_1 == ot || operand_2 == ot || |
| operand_3 == ot; |
| } |
| |
| static inline bool IsScalable() { |
| return (OperandTraits<operand_0>::TypeInfo::kIsScalable | |
| OperandTraits<operand_1>::TypeInfo::kIsScalable | |
| OperandTraits<operand_2>::TypeInfo::kIsScalable | |
| OperandTraits<operand_3>::TypeInfo::kIsScalable); |
| } |
| |
| static const AccumulatorUse kAccumulatorUse = accumulator_use; |
| static const int kOperandCount = 4; |
| static const int kRegisterOperandCount = |
| RegisterOperandTraits<operand_0>::kIsRegisterOperand + |
| RegisterOperandTraits<operand_1>::kIsRegisterOperand + |
| RegisterOperandTraits<operand_2>::kIsRegisterOperand + |
| RegisterOperandTraits<operand_3>::kIsRegisterOperand; |
| static const int kRegisterOperandBitmap = |
| RegisterOperandTraits<operand_0>::kIsRegisterOperand + |
| (RegisterOperandTraits<operand_1>::kIsRegisterOperand << 1) + |
| (RegisterOperandTraits<operand_2>::kIsRegisterOperand << 2) + |
| (RegisterOperandTraits<operand_3>::kIsRegisterOperand << 3); |
| }; |
| |
| template <AccumulatorUse accumulator_use, OperandType operand_0, |
| OperandType operand_1, OperandType operand_2> |
| struct BytecodeTraits<accumulator_use, operand_0, operand_1, operand_2> { |
| static const OperandType* GetOperandTypes() { |
| static const OperandType operand_types[] = {operand_0, operand_1, operand_2, |
| OperandType::kNone}; |
| return operand_types; |
| } |
| |
| static OperandSize GetOperandSize(int i, OperandScale operand_scale) { |
| switch (operand_scale) { |
| #define CASE(Name, _) \ |
| case OperandScale::k##Name: { \ |
| static const OperandSize kOperandSizes[] = { \ |
| OperandScaler<operand_0, OperandScale::k##Name>::kOperandSize, \ |
| OperandScaler<operand_1, OperandScale::k##Name>::kOperandSize, \ |
| OperandScaler<operand_2, OperandScale::k##Name>::kOperandSize, \ |
| }; \ |
| DCHECK_LT(static_cast<size_t>(i), arraysize(kOperandSizes)); \ |
| return kOperandSizes[i]; \ |
| } |
| OPERAND_SCALE_LIST(CASE) |
| #undef CASE |
| } |
| UNREACHABLE(); |
| return OperandSize::kNone; |
| } |
| |
| template <OperandType ot> |
| static inline bool HasAnyOperandsOfType() { |
| return operand_0 == ot || operand_1 == ot || operand_2 == ot; |
| } |
| |
| static inline bool IsScalable() { |
| return (OperandTraits<operand_0>::TypeInfo::kIsScalable | |
| OperandTraits<operand_1>::TypeInfo::kIsScalable | |
| OperandTraits<operand_2>::TypeInfo::kIsScalable); |
| } |
| |
| static const AccumulatorUse kAccumulatorUse = accumulator_use; |
| static const int kOperandCount = 3; |
| static const int kRegisterOperandCount = |
| RegisterOperandTraits<operand_0>::kIsRegisterOperand + |
| RegisterOperandTraits<operand_1>::kIsRegisterOperand + |
| RegisterOperandTraits<operand_2>::kIsRegisterOperand; |
| static const int kRegisterOperandBitmap = |
| RegisterOperandTraits<operand_0>::kIsRegisterOperand + |
| (RegisterOperandTraits<operand_1>::kIsRegisterOperand << 1) + |
| (RegisterOperandTraits<operand_2>::kIsRegisterOperand << 2); |
| }; |
| |
| template <AccumulatorUse accumulator_use, OperandType operand_0, |
| OperandType operand_1> |
| struct BytecodeTraits<accumulator_use, operand_0, operand_1> { |
| static const OperandType* GetOperandTypes() { |
| static const OperandType operand_types[] = {operand_0, operand_1, |
| OperandType::kNone}; |
| return operand_types; |
| } |
| |
| static OperandSize GetOperandSize(int i, OperandScale operand_scale) { |
| switch (operand_scale) { |
| #define CASE(Name, _) \ |
| case OperandScale::k##Name: { \ |
| static const OperandSize kOperandSizes[] = { \ |
| OperandScaler<operand_0, OperandScale::k##Name>::kOperandSize, \ |
| OperandScaler<operand_1, OperandScale::k##Name>::kOperandSize, \ |
| }; \ |
| DCHECK_LT(static_cast<size_t>(i), arraysize(kOperandSizes)); \ |
| return kOperandSizes[i]; \ |
| } |
| OPERAND_SCALE_LIST(CASE) |
| #undef CASE |
| } |
| UNREACHABLE(); |
| return OperandSize::kNone; |
| } |
| |
| template <OperandType ot> |
| static inline bool HasAnyOperandsOfType() { |
| return operand_0 == ot || operand_1 == ot; |
| } |
| |
| static inline bool IsScalable() { |
| return (OperandTraits<operand_0>::TypeInfo::kIsScalable | |
| OperandTraits<operand_1>::TypeInfo::kIsScalable); |
| } |
| |
| static const AccumulatorUse kAccumulatorUse = accumulator_use; |
| static const int kOperandCount = 2; |
| static const int kRegisterOperandCount = |
| RegisterOperandTraits<operand_0>::kIsRegisterOperand + |
| RegisterOperandTraits<operand_1>::kIsRegisterOperand; |
| static const int kRegisterOperandBitmap = |
| RegisterOperandTraits<operand_0>::kIsRegisterOperand + |
| (RegisterOperandTraits<operand_1>::kIsRegisterOperand << 1); |
| }; |
| |
| template <AccumulatorUse accumulator_use, OperandType operand_0> |
| struct BytecodeTraits<accumulator_use, operand_0> { |
| static const OperandType* GetOperandTypes() { |
| static const OperandType operand_types[] = {operand_0, OperandType::kNone}; |
| return operand_types; |
| } |
| |
| static OperandSize GetOperandSize(int i, OperandScale operand_scale) { |
| switch (operand_scale) { |
| #define CASE(Name, _) \ |
| case OperandScale::k##Name: { \ |
| static const OperandSize kOperandSizes[] = { \ |
| OperandScaler<operand_0, OperandScale::k##Name>::kOperandSize, \ |
| }; \ |
| DCHECK_LT(static_cast<size_t>(i), arraysize(kOperandSizes)); \ |
| return kOperandSizes[i]; \ |
| } |
| OPERAND_SCALE_LIST(CASE) |
| #undef CASE |
| } |
| UNREACHABLE(); |
| return OperandSize::kNone; |
| } |
| |
| template <OperandType ot> |
| static inline bool HasAnyOperandsOfType() { |
| return operand_0 == ot; |
| } |
| |
| static inline bool IsScalable() { |
| return OperandTraits<operand_0>::TypeInfo::kIsScalable; |
| } |
| |
| static const AccumulatorUse kAccumulatorUse = accumulator_use; |
| static const int kOperandCount = 1; |
| static const int kRegisterOperandCount = |
| RegisterOperandTraits<operand_0>::kIsRegisterOperand; |
| static const int kRegisterOperandBitmap = |
| RegisterOperandTraits<operand_0>::kIsRegisterOperand; |
| }; |
| |
| template <AccumulatorUse accumulator_use> |
| struct BytecodeTraits<accumulator_use> { |
| static const OperandType* GetOperandTypes() { |
| static const OperandType operand_types[] = {OperandType::kNone}; |
| return operand_types; |
| } |
| |
| static OperandSize GetOperandSize(int i, OperandScale operand_scale) { |
| UNREACHABLE(); |
| return OperandSize::kNone; |
| } |
| |
| template <OperandType ot> |
| static inline bool HasAnyOperandsOfType() { |
| return false; |
| } |
| |
| static inline bool IsScalable() { return false; } |
| |
| static const AccumulatorUse kAccumulatorUse = accumulator_use; |
| static const int kOperandCount = 0; |
| static const int kRegisterOperandCount = 0; |
| static const int kRegisterOperandBitmap = 0; |
| }; |
| |
| static OperandSize ScaledOperandSize(OperandType operand_type, |
| OperandScale operand_scale) { |
| STATIC_ASSERT(static_cast<int>(OperandScale::kQuadruple) == 4 && |
| OperandScale::kLast == OperandScale::kQuadruple); |
| int index = static_cast<int>(operand_scale) >> 1; |
| switch (operand_type) { |
| #define CASE(Name, TypeInfo) \ |
| case OperandType::k##Name: { \ |
| static const OperandSize kOperandSizes[] = { \ |
| OperandScaler<OperandType::k##Name, \ |
| OperandScale::kSingle>::kOperandSize, \ |
| OperandScaler<OperandType::k##Name, \ |
| OperandScale::kDouble>::kOperandSize, \ |
| OperandScaler<OperandType::k##Name, \ |
| OperandScale::kQuadruple>::kOperandSize}; \ |
| return kOperandSizes[index]; \ |
| } |
| OPERAND_TYPE_LIST(CASE) |
| #undef CASE |
| } |
| UNREACHABLE(); |
| return OperandSize::kNone; |
| } |
| |
| } // namespace interpreter |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_INTERPRETER_BYTECODE_TRAITS_H_ |