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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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2222 LInstruction* LChunkBuilder::DoTransitionElementsKind( | 2222 LInstruction* LChunkBuilder::DoTransitionElementsKind( |
2223 HTransitionElementsKind* instr) { | 2223 HTransitionElementsKind* instr) { |
2224 LOperand* object = UseRegister(instr->object()); | 2224 LOperand* object = UseRegister(instr->object()); |
2225 if (IsSimpleMapChangeTransition(instr->from_kind(), instr->to_kind())) { | 2225 if (IsSimpleMapChangeTransition(instr->from_kind(), instr->to_kind())) { |
2226 LOperand* object = UseRegister(instr->object()); | 2226 LOperand* object = UseRegister(instr->object()); |
2227 LOperand* new_map_reg = TempRegister(); | 2227 LOperand* new_map_reg = TempRegister(); |
2228 LOperand* temp_reg = TempRegister(); | 2228 LOperand* temp_reg = TempRegister(); |
2229 LTransitionElementsKind* result = | 2229 LTransitionElementsKind* result = |
2230 new(zone()) LTransitionElementsKind(object, new_map_reg, temp_reg); | 2230 new(zone()) LTransitionElementsKind(object, new_map_reg, temp_reg); |
2231 return result; | 2231 return result; |
2232 } else if (FLAG_compiled_transitions) { | 2232 } else { |
2233 LTransitionElementsKind* result = | 2233 LTransitionElementsKind* result = |
2234 new(zone()) LTransitionElementsKind(object, NULL, NULL); | 2234 new(zone()) LTransitionElementsKind(object, NULL, NULL); |
2235 return AssignPointerMap(result); | 2235 return AssignPointerMap(result); |
2236 } else { | |
2237 LOperand* object = UseFixed(instr->object(), rax); | |
2238 LOperand* fixed_object_reg = FixedTemp(rdx); | |
2239 LOperand* new_map_reg = FixedTemp(rbx); | |
2240 LTransitionElementsKind* result = | |
2241 new(zone()) LTransitionElementsKind(object, | |
2242 new_map_reg, | |
2243 fixed_object_reg); | |
2244 return MarkAsCall(result, instr); | |
2245 } | 2236 } |
2246 } | 2237 } |
2247 | 2238 |
2248 | 2239 |
2249 LInstruction* LChunkBuilder::DoTrapAllocationMemento( | 2240 LInstruction* LChunkBuilder::DoTrapAllocationMemento( |
2250 HTrapAllocationMemento* instr) { | 2241 HTrapAllocationMemento* instr) { |
2251 LOperand* object = UseRegister(instr->object()); | 2242 LOperand* object = UseRegister(instr->object()); |
2252 LOperand* temp = TempRegister(); | 2243 LOperand* temp = TempRegister(); |
2253 LTrapAllocationMemento* result = | 2244 LTrapAllocationMemento* result = |
2254 new(zone()) LTrapAllocationMemento(object, temp); | 2245 new(zone()) LTrapAllocationMemento(object, temp); |
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2563 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) { | 2554 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) { |
2564 LOperand* object = UseRegister(instr->object()); | 2555 LOperand* object = UseRegister(instr->object()); |
2565 LOperand* index = UseTempRegister(instr->index()); | 2556 LOperand* index = UseTempRegister(instr->index()); |
2566 return DefineSameAsFirst(new(zone()) LLoadFieldByIndex(object, index)); | 2557 return DefineSameAsFirst(new(zone()) LLoadFieldByIndex(object, index)); |
2567 } | 2558 } |
2568 | 2559 |
2569 | 2560 |
2570 } } // namespace v8::internal | 2561 } } // namespace v8::internal |
2571 | 2562 |
2572 #endif // V8_TARGET_ARCH_X64 | 2563 #endif // V8_TARGET_ARCH_X64 |
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