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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/interpreter-intrinsics.h" |
7 #include "src/objects-inl.h" | 8 #include "src/objects-inl.h" |
8 | 9 |
9 namespace v8 { | 10 namespace v8 { |
10 namespace internal { | 11 namespace internal { |
11 namespace interpreter { | 12 namespace interpreter { |
12 | 13 |
13 BytecodeArrayIterator::BytecodeArrayIterator( | 14 BytecodeArrayIterator::BytecodeArrayIterator( |
14 Handle<BytecodeArray> bytecode_array) | 15 Handle<BytecodeArray> bytecode_array) |
15 : bytecode_array_(bytecode_array), | 16 : bytecode_array_(bytecode_array), |
16 bytecode_offset_(0), | 17 bytecode_offset_(0), |
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133 Bytecodes::GetOperandTypes(current_bytecode()); | 134 Bytecodes::GetOperandTypes(current_bytecode()); |
134 DCHECK(Bytecodes::IsRegisterOperandType(operand_types[operand_index])); | 135 DCHECK(Bytecodes::IsRegisterOperandType(operand_types[operand_index])); |
135 if (operand_types[operand_index + 1] == OperandType::kRegCount) { | 136 if (operand_types[operand_index + 1] == OperandType::kRegCount) { |
136 return GetRegisterCountOperand(operand_index + 1); | 137 return GetRegisterCountOperand(operand_index + 1); |
137 } else { | 138 } else { |
138 OperandType operand_type = operand_types[operand_index]; | 139 OperandType operand_type = operand_types[operand_index]; |
139 return Bytecodes::GetNumberOfRegistersRepresentedBy(operand_type); | 140 return Bytecodes::GetNumberOfRegistersRepresentedBy(operand_type); |
140 } | 141 } |
141 } | 142 } |
142 | 143 |
143 uint32_t BytecodeArrayIterator::GetRuntimeIdOperand(int operand_index) const { | 144 Runtime::FunctionId BytecodeArrayIterator::GetRuntimeIdOperand( |
| 145 int operand_index) const { |
144 OperandType operand_type = | 146 OperandType operand_type = |
145 Bytecodes::GetOperandType(current_bytecode(), operand_index); | 147 Bytecodes::GetOperandType(current_bytecode(), operand_index); |
146 DCHECK(operand_type == OperandType::kRuntimeId); | 148 DCHECK(operand_type == OperandType::kRuntimeId); |
147 return GetUnsignedOperand(operand_index, operand_type); | 149 uint32_t raw_id = GetUnsignedOperand(operand_index, operand_type); |
| 150 return static_cast<Runtime::FunctionId>(raw_id); |
| 151 } |
| 152 |
| 153 Runtime::FunctionId BytecodeArrayIterator::GetIntrinsicIdOperand( |
| 154 int operand_index) const { |
| 155 OperandType operand_type = |
| 156 Bytecodes::GetOperandType(current_bytecode(), operand_index); |
| 157 DCHECK(operand_type == OperandType::kIntrinsicId); |
| 158 uint32_t raw_id = GetUnsignedOperand(operand_index, operand_type); |
| 159 return IntrinsicsHelper::ToRuntimeId( |
| 160 static_cast<IntrinsicsHelper::IntrinsicId>(raw_id)); |
148 } | 161 } |
149 | 162 |
150 Handle<Object> BytecodeArrayIterator::GetConstantForIndexOperand( | 163 Handle<Object> BytecodeArrayIterator::GetConstantForIndexOperand( |
151 int operand_index) const { | 164 int operand_index) const { |
152 return FixedArray::get(bytecode_array()->constant_pool(), | 165 return FixedArray::get(bytecode_array()->constant_pool(), |
153 GetIndexOperand(operand_index), | 166 GetIndexOperand(operand_index), |
154 bytecode_array()->GetIsolate()); | 167 bytecode_array()->GetIsolate()); |
155 } | 168 } |
156 | 169 |
157 | 170 |
158 int BytecodeArrayIterator::GetJumpTargetOffset() const { | 171 int BytecodeArrayIterator::GetJumpTargetOffset() const { |
159 Bytecode bytecode = current_bytecode(); | 172 Bytecode bytecode = current_bytecode(); |
160 if (interpreter::Bytecodes::IsJumpImmediate(bytecode)) { | 173 if (interpreter::Bytecodes::IsJumpImmediate(bytecode)) { |
161 int relative_offset = GetImmediateOperand(0); | 174 int relative_offset = GetImmediateOperand(0); |
162 return current_offset() + relative_offset + current_prefix_offset(); | 175 return current_offset() + relative_offset + current_prefix_offset(); |
163 } else if (interpreter::Bytecodes::IsJumpConstant(bytecode)) { | 176 } else if (interpreter::Bytecodes::IsJumpConstant(bytecode)) { |
164 Smi* smi = Smi::cast(*GetConstantForIndexOperand(0)); | 177 Smi* smi = Smi::cast(*GetConstantForIndexOperand(0)); |
165 return current_offset() + smi->value() + current_prefix_offset(); | 178 return current_offset() + smi->value() + current_prefix_offset(); |
166 } else { | 179 } else { |
167 UNREACHABLE(); | 180 UNREACHABLE(); |
168 return kMinInt; | 181 return kMinInt; |
169 } | 182 } |
170 } | 183 } |
171 | 184 |
172 } // namespace interpreter | 185 } // namespace interpreter |
173 } // namespace internal | 186 } // namespace internal |
174 } // namespace v8 | 187 } // namespace v8 |
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