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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/objects-inl.h" | 7 #include "src/objects-inl.h" |
8 | 8 |
9 namespace v8 { | 9 namespace v8 { |
10 namespace internal { | 10 namespace internal { |
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41 uint8_t* operand_start = | 41 uint8_t* operand_start = |
42 bytecode_array()->GetFirstBytecodeAddress() + bytecode_offset_ + | 42 bytecode_array()->GetFirstBytecodeAddress() + bytecode_offset_ + |
43 Bytecodes::GetOperandOffset(current_bytecode(), operand_index); | 43 Bytecodes::GetOperandOffset(current_bytecode(), operand_index); |
44 switch (Bytecodes::SizeOfOperand(operand_type)) { | 44 switch (Bytecodes::SizeOfOperand(operand_type)) { |
45 default: | 45 default: |
46 case OperandSize::kNone: | 46 case OperandSize::kNone: |
47 UNREACHABLE(); | 47 UNREACHABLE(); |
48 case OperandSize::kByte: | 48 case OperandSize::kByte: |
49 return static_cast<uint32_t>(*operand_start); | 49 return static_cast<uint32_t>(*operand_start); |
50 case OperandSize::kShort: | 50 case OperandSize::kShort: |
51 return Bytecodes::ShortOperandFromBytes(operand_start); | 51 return ReadUnalignedUInt16(operand_start); |
52 } | 52 } |
53 } | 53 } |
54 | 54 |
55 | 55 |
56 int8_t BytecodeArrayIterator::GetImmediateOperand(int operand_index) const { | 56 int8_t BytecodeArrayIterator::GetImmediateOperand(int operand_index) const { |
57 uint32_t operand = GetRawOperand(operand_index, OperandType::kImm8); | 57 uint32_t operand = GetRawOperand(operand_index, OperandType::kImm8); |
58 return static_cast<int8_t>(operand); | 58 return static_cast<int8_t>(operand); |
59 } | 59 } |
60 | 60 |
61 | 61 |
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83 | 83 |
84 Handle<Object> BytecodeArrayIterator::GetConstantForIndexOperand( | 84 Handle<Object> BytecodeArrayIterator::GetConstantForIndexOperand( |
85 int operand_index) const { | 85 int operand_index) const { |
86 Handle<FixedArray> constants = handle(bytecode_array()->constant_pool()); | 86 Handle<FixedArray> constants = handle(bytecode_array()->constant_pool()); |
87 return FixedArray::get(constants, GetIndexOperand(operand_index)); | 87 return FixedArray::get(constants, GetIndexOperand(operand_index)); |
88 } | 88 } |
89 | 89 |
90 } // namespace interpreter | 90 } // namespace interpreter |
91 } // namespace internal | 91 } // namespace internal |
92 } // namespace v8 | 92 } // namespace v8 |
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