diff options
Diffstat (limited to 'deps/v8/src/interpreter/bytecode-operands.h')
| -rw-r--r-- | deps/v8/src/interpreter/bytecode-operands.h | 55 |
1 files changed, 44 insertions, 11 deletions
diff --git a/deps/v8/src/interpreter/bytecode-operands.h b/deps/v8/src/interpreter/bytecode-operands.h index 55485027d3..f649d93a08 100644 --- a/deps/v8/src/interpreter/bytecode-operands.h +++ b/deps/v8/src/interpreter/bytecode-operands.h @@ -23,27 +23,33 @@ namespace interpreter { V(RegOutPair, OperandTypeInfo::kScalableSignedByte) \ V(RegOutTriple, OperandTypeInfo::kScalableSignedByte) -#define UNSIGNED_SCALAR_OPERAND_TYPE_LIST(V) \ - V(Flag8, OperandTypeInfo::kFixedUnsignedByte) \ - V(IntrinsicId, OperandTypeInfo::kFixedUnsignedByte) \ +#define SIGNED_SCALABLE_SCALAR_OPERAND_TYPE_LIST(V) \ + V(Imm, OperandTypeInfo::kScalableSignedByte) + +#define UNSIGNED_SCALABLE_SCALAR_OPERAND_TYPE_LIST(V) \ V(Idx, OperandTypeInfo::kScalableUnsignedByte) \ V(UImm, OperandTypeInfo::kScalableUnsignedByte) \ - V(RegCount, OperandTypeInfo::kScalableUnsignedByte) \ + V(RegCount, OperandTypeInfo::kScalableUnsignedByte) + +#define UNSIGNED_FIXED_SCALAR_OPERAND_TYPE_LIST(V) \ + V(Flag8, OperandTypeInfo::kFixedUnsignedByte) \ + V(IntrinsicId, OperandTypeInfo::kFixedUnsignedByte) \ V(RuntimeId, OperandTypeInfo::kFixedUnsignedShort) -#define SIGNED_SCALAR_OPERAND_TYPE_LIST(V) \ - V(Imm, OperandTypeInfo::kScalableSignedByte) +// Carefully ordered for operand type range checks below. +#define NON_REGISTER_OPERAND_TYPE_LIST(V) \ + INVALID_OPERAND_TYPE_LIST(V) \ + UNSIGNED_FIXED_SCALAR_OPERAND_TYPE_LIST(V) \ + UNSIGNED_SCALABLE_SCALAR_OPERAND_TYPE_LIST(V) \ + SIGNED_SCALABLE_SCALAR_OPERAND_TYPE_LIST(V) +// Carefully ordered for operand type range checks below. #define REGISTER_OPERAND_TYPE_LIST(V) \ REGISTER_INPUT_OPERAND_TYPE_LIST(V) \ REGISTER_OUTPUT_OPERAND_TYPE_LIST(V) -#define NON_REGISTER_OPERAND_TYPE_LIST(V) \ - INVALID_OPERAND_TYPE_LIST(V) \ - UNSIGNED_SCALAR_OPERAND_TYPE_LIST(V) \ - SIGNED_SCALAR_OPERAND_TYPE_LIST(V) - // The list of operand types used by bytecodes. +// Carefully ordered for operand type range checks below. #define OPERAND_TYPE_LIST(V) \ NON_REGISTER_OPERAND_TYPE_LIST(V) \ REGISTER_OPERAND_TYPE_LIST(V) @@ -125,6 +131,33 @@ V8_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& os, const OperandSize& operand_size); std::ostream& operator<<(std::ostream& os, const OperandType& operand_type); +class BytecodeOperands { + public: + // Returns true if |accumulator_use| reads the accumulator. + static constexpr bool ReadsAccumulator(AccumulatorUse accumulator_use) { + return accumulator_use == AccumulatorUse::kRead || + accumulator_use == AccumulatorUse::kReadWrite; + } + + // Returns true if |accumulator_use| writes the accumulator. + static constexpr bool WritesAccumulator(AccumulatorUse accumulator_use) { + return accumulator_use == AccumulatorUse::kWrite || + accumulator_use == AccumulatorUse::kReadWrite; + } + + // Returns true if |operand_type| is a scalable signed byte. + static constexpr bool IsScalableSignedByte(OperandType operand_type) { + return operand_type >= OperandType::kImm && + operand_type <= OperandType::kRegOutTriple; + } + + // Returns true if |operand_type| is a scalable unsigned byte. + static constexpr bool IsScalableUnsignedByte(OperandType operand_type) { + return operand_type >= OperandType::kIdx && + operand_type <= OperandType::kRegCount; + } +}; + } // namespace interpreter } // namespace internal } // namespace v8 |