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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-builder.h" | 5 #include "src/interpreter/bytecode-array-builder.h" |
6 | 6 |
7 namespace v8 { | 7 namespace v8 { |
8 namespace internal { | 8 namespace internal { |
9 namespace interpreter { | 9 namespace interpreter { |
10 | 10 |
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30 | 30 |
31 | 31 |
32 void BytecodeArrayBuilder::set_parameter_count(int number_of_parameters) { | 32 void BytecodeArrayBuilder::set_parameter_count(int number_of_parameters) { |
33 parameter_count_ = number_of_parameters; | 33 parameter_count_ = number_of_parameters; |
34 } | 34 } |
35 | 35 |
36 | 36 |
37 int BytecodeArrayBuilder::parameter_count() const { return parameter_count_; } | 37 int BytecodeArrayBuilder::parameter_count() const { return parameter_count_; } |
38 | 38 |
39 | 39 |
| 40 bool BytecodeArrayBuilder::HasExplicitReturn() { |
| 41 return !bytecodes_.empty() && |
| 42 bytecodes_.back() == Bytecodes::ToByte(Bytecode::kReturn); |
| 43 } |
| 44 |
| 45 |
40 Register BytecodeArrayBuilder::Parameter(int parameter_index) { | 46 Register BytecodeArrayBuilder::Parameter(int parameter_index) { |
41 DCHECK_GE(parameter_index, 0); | 47 DCHECK_GE(parameter_index, 0); |
42 DCHECK_LT(parameter_index, parameter_count_); | 48 DCHECK_LT(parameter_index, parameter_count_); |
43 return Register::FromParameterIndex(parameter_index, parameter_count_); | 49 return Register::FromParameterIndex(parameter_index, parameter_count_); |
44 } | 50 } |
45 | 51 |
46 | 52 |
47 Handle<BytecodeArray> BytecodeArrayBuilder::ToBytecodeArray() { | 53 Handle<BytecodeArray> BytecodeArrayBuilder::ToBytecodeArray() { |
48 DCHECK_EQ(bytecode_generated_, false); | 54 DCHECK_EQ(bytecode_generated_, false); |
49 DCHECK_GE(parameter_count_, 0); | 55 DCHECK_GE(parameter_count_, 0); |
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326 | 332 |
327 Register TemporaryRegisterScope::NewRegister() { | 333 Register TemporaryRegisterScope::NewRegister() { |
328 count_++; | 334 count_++; |
329 last_register_index_ = builder_->BorrowTemporaryRegister(); | 335 last_register_index_ = builder_->BorrowTemporaryRegister(); |
330 return Register(last_register_index_); | 336 return Register(last_register_index_); |
331 } | 337 } |
332 | 338 |
333 } // namespace interpreter | 339 } // namespace interpreter |
334 } // namespace internal | 340 } // namespace internal |
335 } // namespace v8 | 341 } // namespace v8 |
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