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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-peephole-optimizer.h" | 5 #include "src/interpreter/bytecode-peephole-optimizer.h" |
| 6 | 6 |
| 7 #include "src/interpreter/constant-array-builder.h" | 7 #include "src/interpreter/constant-array-builder.h" |
| 8 #include "src/objects-inl.h" | 8 #include "src/objects-inl.h" |
| 9 #include "src/objects.h" | 9 #include "src/objects.h" |
| 10 | 10 |
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| 194 // store to R occurs. | 194 // store to R occurs. |
| 195 last->source_info().Update(current->source_info()); | 195 last->source_info().Update(current->source_info()); |
| 196 current->source_info().set_invalid(); | 196 current->source_info().set_invalid(); |
| 197 } | 197 } |
| 198 | 198 |
| 199 } // namespace | 199 } // namespace |
| 200 | 200 |
| 201 bool BytecodePeepholeOptimizer::ChangeLdaToLdr(BytecodeNode* const current) { | 201 bool BytecodePeepholeOptimizer::ChangeLdaToLdr(BytecodeNode* const current) { |
| 202 if (current->bytecode() == Bytecode::kStar) { | 202 if (current->bytecode() == Bytecode::kStar) { |
| 203 switch (last_.bytecode()) { | 203 switch (last_.bytecode()) { |
| 204 case Bytecode::kLoadIC: | 204 case Bytecode::kLdaNamedProperty: |
| 205 TransformLdaStarToLdrLdar(Bytecode::kLdrNamedProperty, &last_, current); | 205 TransformLdaStarToLdrLdar(Bytecode::kLdrNamedProperty, &last_, current); |
| 206 return true; | 206 return true; |
| 207 case Bytecode::kKeyedLoadIC: | 207 case Bytecode::kLdaKeyedProperty: |
| 208 TransformLdaStarToLdrLdar(Bytecode::kLdrKeyedProperty, &last_, current); | 208 TransformLdaStarToLdrLdar(Bytecode::kLdrKeyedProperty, &last_, current); |
| 209 return true; | 209 return true; |
| 210 case Bytecode::kLdaGlobal: | 210 case Bytecode::kLdaGlobal: |
| 211 TransformLdaStarToLdrLdar(Bytecode::kLdrGlobal, &last_, current); | 211 TransformLdaStarToLdrLdar(Bytecode::kLdrGlobal, &last_, current); |
| 212 return true; | 212 return true; |
| 213 case Bytecode::kLdaContextSlot: | 213 case Bytecode::kLdaContextSlot: |
| 214 TransformLdaStarToLdrLdar(Bytecode::kLdrContextSlot, &last_, current); | 214 TransformLdaStarToLdrLdar(Bytecode::kLdrContextSlot, &last_, current); |
| 215 return true; | 215 return true; |
| 216 case Bytecode::kLdaUndefined: | 216 case Bytecode::kLdaUndefined: |
| 217 TransformLdaStarToLdrLdar(Bytecode::kLdrUndefined, &last_, current); | 217 TransformLdaStarToLdrLdar(Bytecode::kLdrUndefined, &last_, current); |
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| 307 InvalidateLast(); | 307 InvalidateLast(); |
| 308 return current; | 308 return current; |
| 309 } | 309 } |
| 310 | 310 |
| 311 return current; | 311 return current; |
| 312 } | 312 } |
| 313 | 313 |
| 314 } // namespace interpreter | 314 } // namespace interpreter |
| 315 } // namespace internal | 315 } // namespace internal |
| 316 } // namespace v8 | 316 } // namespace v8 |
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