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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 #include "src/compiler.h" | 7 #include "src/compiler.h" |
| 8 #include "src/globals.h" | 8 #include "src/globals.h" |
| 9 #include "src/interpreter/bytecode-array-writer.h" | 9 #include "src/interpreter/bytecode-array-writer.h" |
| 10 #include "src/interpreter/bytecode-dead-code-optimizer.h" | 10 #include "src/interpreter/bytecode-dead-code-optimizer.h" |
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| 548 } | 548 } |
| 549 | 549 |
| 550 void BytecodeArrayBuilder::EnsureReturn() { | 550 void BytecodeArrayBuilder::EnsureReturn() { |
| 551 if (!return_seen_in_block_) { | 551 if (!return_seen_in_block_) { |
| 552 LoadUndefined(); | 552 LoadUndefined(); |
| 553 Return(); | 553 Return(); |
| 554 } | 554 } |
| 555 DCHECK(return_seen_in_block_); | 555 DCHECK(return_seen_in_block_); |
| 556 } | 556 } |
| 557 | 557 |
| 558 BytecodeArrayBuilder& BytecodeArrayBuilder::CallWithFeedback( |
| 559 Register callable, Register receiver_args, size_t receiver_args_count, |
| 560 int feedback_slot, TailCallMode tail_call_mode) { |
| 561 Bytecode bytecode = BytecodeForCallWithFeedback(tail_call_mode); |
| 562 Output(bytecode, RegisterOperand(callable), RegisterOperand(receiver_args), |
| 563 UnsignedOperand(receiver_args_count), UnsignedOperand(feedback_slot)); |
| 564 return *this; |
| 565 } |
| 566 |
| 558 BytecodeArrayBuilder& BytecodeArrayBuilder::Call(Register callable, | 567 BytecodeArrayBuilder& BytecodeArrayBuilder::Call(Register callable, |
| 559 Register receiver_args, | 568 Register receiver_args, |
| 560 size_t receiver_args_count, | 569 size_t receiver_args_count, |
| 561 int feedback_slot, | |
| 562 TailCallMode tail_call_mode) { | 570 TailCallMode tail_call_mode) { |
| 563 Bytecode bytecode = BytecodeForCall(tail_call_mode); | 571 Bytecode bytecode = BytecodeForCall(tail_call_mode); |
| 564 Output(bytecode, RegisterOperand(callable), RegisterOperand(receiver_args), | 572 Output(bytecode, RegisterOperand(callable), RegisterOperand(receiver_args), |
| 565 UnsignedOperand(receiver_args_count), UnsignedOperand(feedback_slot)); | 573 UnsignedOperand(receiver_args_count)); |
| 566 return *this; | 574 return *this; |
| 567 } | 575 } |
| 568 | 576 |
| 569 BytecodeArrayBuilder& BytecodeArrayBuilder::New(Register constructor, | 577 BytecodeArrayBuilder& BytecodeArrayBuilder::New(Register constructor, |
| 570 Register first_arg, | 578 Register first_arg, |
| 571 size_t arg_count) { | 579 size_t arg_count) { |
| 572 if (!first_arg.is_valid()) { | 580 if (!first_arg.is_valid()) { |
| 573 DCHECK_EQ(0u, arg_count); | 581 DCHECK_EQ(0u, arg_count); |
| 574 first_arg = Register(0); | 582 first_arg = Register(0); |
| 575 } | 583 } |
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| 928 case TailCallMode::kDisallow: | 936 case TailCallMode::kDisallow: |
| 929 return Bytecode::kCall; | 937 return Bytecode::kCall; |
| 930 case TailCallMode::kAllow: | 938 case TailCallMode::kAllow: |
| 931 return Bytecode::kTailCall; | 939 return Bytecode::kTailCall; |
| 932 default: | 940 default: |
| 933 UNREACHABLE(); | 941 UNREACHABLE(); |
| 934 } | 942 } |
| 935 return Bytecode::kIllegal; | 943 return Bytecode::kIllegal; |
| 936 } | 944 } |
| 937 | 945 |
| 946 // static |
| 947 Bytecode BytecodeArrayBuilder::BytecodeForCallWithFeedback( |
| 948 TailCallMode tail_call_mode) { |
| 949 switch (tail_call_mode) { |
| 950 case TailCallMode::kDisallow: |
| 951 return Bytecode::kCallWithFeedback; |
| 952 case TailCallMode::kAllow: |
| 953 return Bytecode::kTailCallWithFeedback; |
| 954 default: |
| 955 UNREACHABLE(); |
| 956 } |
| 957 return Bytecode::kIllegal; |
| 958 } |
| 959 |
| 938 } // namespace interpreter | 960 } // namespace interpreter |
| 939 } // namespace internal | 961 } // namespace internal |
| 940 } // namespace v8 | 962 } // namespace v8 |
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