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| 1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "src/interpreter/bytecode-array-iterator.h" | 5 #include "src/interpreter/bytecode-array-iterator.h" |
| 6 | 6 |
| 7 #include "src/interpreter/bytecode-decoder.h" |
| 7 #include "src/interpreter/interpreter-intrinsics.h" | 8 #include "src/interpreter/interpreter-intrinsics.h" |
| 8 #include "src/objects-inl.h" | 9 #include "src/objects-inl.h" |
| 9 | 10 |
| 10 namespace v8 { | 11 namespace v8 { |
| 11 namespace internal { | 12 namespace internal { |
| 12 namespace interpreter { | 13 namespace interpreter { |
| 13 | 14 |
| 14 BytecodeArrayIterator::BytecodeArrayIterator( | 15 BytecodeArrayIterator::BytecodeArrayIterator( |
| 15 Handle<BytecodeArray> bytecode_array) | 16 Handle<BytecodeArray> bytecode_array) |
| 16 : bytecode_array_(bytecode_array), | 17 : bytecode_array_(bytecode_array), |
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| 63 DCHECK_GE(operand_index, 0); | 64 DCHECK_GE(operand_index, 0); |
| 64 DCHECK_LT(operand_index, Bytecodes::NumberOfOperands(current_bytecode())); | 65 DCHECK_LT(operand_index, Bytecodes::NumberOfOperands(current_bytecode())); |
| 65 DCHECK_EQ(operand_type, | 66 DCHECK_EQ(operand_type, |
| 66 Bytecodes::GetOperandType(current_bytecode(), operand_index)); | 67 Bytecodes::GetOperandType(current_bytecode(), operand_index)); |
| 67 DCHECK(Bytecodes::IsUnsignedOperandType(operand_type)); | 68 DCHECK(Bytecodes::IsUnsignedOperandType(operand_type)); |
| 68 const uint8_t* operand_start = | 69 const uint8_t* operand_start = |
| 69 bytecode_array()->GetFirstBytecodeAddress() + bytecode_offset_ + | 70 bytecode_array()->GetFirstBytecodeAddress() + bytecode_offset_ + |
| 70 current_prefix_offset() + | 71 current_prefix_offset() + |
| 71 Bytecodes::GetOperandOffset(current_bytecode(), operand_index, | 72 Bytecodes::GetOperandOffset(current_bytecode(), operand_index, |
| 72 current_operand_scale()); | 73 current_operand_scale()); |
| 73 return Bytecodes::DecodeUnsignedOperand(operand_start, operand_type, | 74 return BytecodeDecoder::DecodeUnsignedOperand(operand_start, operand_type, |
| 74 current_operand_scale()); | 75 current_operand_scale()); |
| 75 } | 76 } |
| 76 | 77 |
| 77 int32_t BytecodeArrayIterator::GetSignedOperand( | 78 int32_t BytecodeArrayIterator::GetSignedOperand( |
| 78 int operand_index, OperandType operand_type) const { | 79 int operand_index, OperandType operand_type) const { |
| 79 DCHECK_GE(operand_index, 0); | 80 DCHECK_GE(operand_index, 0); |
| 80 DCHECK_LT(operand_index, Bytecodes::NumberOfOperands(current_bytecode())); | 81 DCHECK_LT(operand_index, Bytecodes::NumberOfOperands(current_bytecode())); |
| 81 DCHECK_EQ(operand_type, | 82 DCHECK_EQ(operand_type, |
| 82 Bytecodes::GetOperandType(current_bytecode(), operand_index)); | 83 Bytecodes::GetOperandType(current_bytecode(), operand_index)); |
| 83 DCHECK(!Bytecodes::IsUnsignedOperandType(operand_type)); | 84 DCHECK(!Bytecodes::IsUnsignedOperandType(operand_type)); |
| 84 const uint8_t* operand_start = | 85 const uint8_t* operand_start = |
| 85 bytecode_array()->GetFirstBytecodeAddress() + bytecode_offset_ + | 86 bytecode_array()->GetFirstBytecodeAddress() + bytecode_offset_ + |
| 86 current_prefix_offset() + | 87 current_prefix_offset() + |
| 87 Bytecodes::GetOperandOffset(current_bytecode(), operand_index, | 88 Bytecodes::GetOperandOffset(current_bytecode(), operand_index, |
| 88 current_operand_scale()); | 89 current_operand_scale()); |
| 89 return Bytecodes::DecodeSignedOperand(operand_start, operand_type, | 90 return BytecodeDecoder::DecodeSignedOperand(operand_start, operand_type, |
| 90 current_operand_scale()); | 91 current_operand_scale()); |
| 91 } | 92 } |
| 92 | 93 |
| 93 uint32_t BytecodeArrayIterator::GetFlagOperand(int operand_index) const { | 94 uint32_t BytecodeArrayIterator::GetFlagOperand(int operand_index) const { |
| 94 DCHECK_EQ(Bytecodes::GetOperandType(current_bytecode(), operand_index), | 95 DCHECK_EQ(Bytecodes::GetOperandType(current_bytecode(), operand_index), |
| 95 OperandType::kFlag8); | 96 OperandType::kFlag8); |
| 96 return GetUnsignedOperand(operand_index, OperandType::kFlag8); | 97 return GetUnsignedOperand(operand_index, OperandType::kFlag8); |
| 97 } | 98 } |
| 98 | 99 |
| 99 int32_t BytecodeArrayIterator::GetImmediateOperand(int operand_index) const { | 100 int32_t BytecodeArrayIterator::GetImmediateOperand(int operand_index) const { |
| 100 DCHECK_EQ(Bytecodes::GetOperandType(current_bytecode(), operand_index), | 101 DCHECK_EQ(Bytecodes::GetOperandType(current_bytecode(), operand_index), |
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| 117 } | 118 } |
| 118 | 119 |
| 119 Register BytecodeArrayIterator::GetRegisterOperand(int operand_index) const { | 120 Register BytecodeArrayIterator::GetRegisterOperand(int operand_index) const { |
| 120 OperandType operand_type = | 121 OperandType operand_type = |
| 121 Bytecodes::GetOperandType(current_bytecode(), operand_index); | 122 Bytecodes::GetOperandType(current_bytecode(), operand_index); |
| 122 const uint8_t* operand_start = | 123 const uint8_t* operand_start = |
| 123 bytecode_array()->GetFirstBytecodeAddress() + bytecode_offset_ + | 124 bytecode_array()->GetFirstBytecodeAddress() + bytecode_offset_ + |
| 124 current_prefix_offset() + | 125 current_prefix_offset() + |
| 125 Bytecodes::GetOperandOffset(current_bytecode(), operand_index, | 126 Bytecodes::GetOperandOffset(current_bytecode(), operand_index, |
| 126 current_operand_scale()); | 127 current_operand_scale()); |
| 127 return Bytecodes::DecodeRegisterOperand(operand_start, operand_type, | 128 return BytecodeDecoder::DecodeRegisterOperand(operand_start, operand_type, |
| 128 current_operand_scale()); | 129 current_operand_scale()); |
| 129 } | 130 } |
| 130 | 131 |
| 131 int BytecodeArrayIterator::GetRegisterOperandRange(int operand_index) const { | 132 int BytecodeArrayIterator::GetRegisterOperandRange(int operand_index) const { |
| 132 DCHECK_LE(operand_index, Bytecodes::NumberOfOperands(current_bytecode())); | 133 DCHECK_LE(operand_index, Bytecodes::NumberOfOperands(current_bytecode())); |
| 133 const OperandType* operand_types = | 134 const OperandType* operand_types = |
| 134 Bytecodes::GetOperandTypes(current_bytecode()); | 135 Bytecodes::GetOperandTypes(current_bytecode()); |
| 135 DCHECK(Bytecodes::IsRegisterOperandType(operand_types[operand_index])); | 136 DCHECK(Bytecodes::IsRegisterOperandType(operand_types[operand_index])); |
| 136 if (operand_types[operand_index + 1] == OperandType::kRegCount) { | 137 if (operand_types[operand_index + 1] == OperandType::kRegCount) { |
| 137 return GetRegisterCountOperand(operand_index + 1); | 138 return GetRegisterCountOperand(operand_index + 1); |
| 138 } else { | 139 } else { |
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| 178 return current_offset() + smi->value() + current_prefix_offset(); | 179 return current_offset() + smi->value() + current_prefix_offset(); |
| 179 } else { | 180 } else { |
| 180 UNREACHABLE(); | 181 UNREACHABLE(); |
| 181 return kMinInt; | 182 return kMinInt; |
| 182 } | 183 } |
| 183 } | 184 } |
| 184 | 185 |
| 185 } // namespace interpreter | 186 } // namespace interpreter |
| 186 } // namespace internal | 187 } // namespace internal |
| 187 } // namespace v8 | 188 } // namespace v8 |
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