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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/base/adapters.h" | 5 #include "src/base/adapters.h" |
| 6 #include "src/compiler/frame-elider.h" | 6 #include "src/compiler/frame-elider.h" |
| 7 | 7 |
| 8 namespace v8 { | 8 namespace v8 { |
| 9 namespace internal { | 9 namespace internal { |
| 10 namespace compiler { | 10 namespace compiler { |
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| 26 InstructionAt(i)->opcode() == ArchOpcode::kArchDeoptimize) { | 26 InstructionAt(i)->opcode() == ArchOpcode::kArchDeoptimize) { |
| 27 block->mark_needs_frame(); | 27 block->mark_needs_frame(); |
| 28 break; | 28 break; |
| 29 } | 29 } |
| 30 } | 30 } |
| 31 } | 31 } |
| 32 } | 32 } |
| 33 | 33 |
| 34 | 34 |
| 35 void FrameElider::PropagateMarks() { | 35 void FrameElider::PropagateMarks() { |
| 36 while (PropagateInOrder() && PropagateReversed()) { | 36 while (PropagateInOrder() || PropagateReversed()) { |
| 37 } | 37 } |
| 38 } | 38 } |
| 39 | 39 |
| 40 | 40 |
| 41 void FrameElider::MarkDeConstruction() { | 41 void FrameElider::MarkDeConstruction() { |
| 42 for (InstructionBlock* block : instruction_blocks()) { | 42 for (InstructionBlock* block : instruction_blocks()) { |
| 43 if (block->needs_frame()) { | 43 if (block->needs_frame()) { |
| 44 // Special case: The start block needs a frame. | 44 // Special case: The start block needs a frame. |
| 45 if (block->predecessors().empty()) { | 45 if (block->predecessors().empty()) { |
| 46 block->mark_must_construct_frame(); | 46 block->mark_must_construct_frame(); |
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| 122 } | 122 } |
| 123 | 123 |
| 124 | 124 |
| 125 Instruction* FrameElider::InstructionAt(int index) const { | 125 Instruction* FrameElider::InstructionAt(int index) const { |
| 126 return code_->InstructionAt(index); | 126 return code_->InstructionAt(index); |
| 127 } | 127 } |
| 128 | 128 |
| 129 } // namespace compiler | 129 } // namespace compiler |
| 130 } // namespace internal | 130 } // namespace internal |
| 131 } // namespace v8 | 131 } // namespace v8 |
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