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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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2433 HTrapAllocationMemento* instr) { | 2433 HTrapAllocationMemento* instr) { |
2434 LOperand* object = UseRegister(instr->object()); | 2434 LOperand* object = UseRegister(instr->object()); |
2435 LOperand* temp = TempRegister(); | 2435 LOperand* temp = TempRegister(); |
2436 LTrapAllocationMemento* result = | 2436 LTrapAllocationMemento* result = |
2437 new(zone()) LTrapAllocationMemento(object, temp); | 2437 new(zone()) LTrapAllocationMemento(object, temp); |
2438 return AssignEnvironment(result); | 2438 return AssignEnvironment(result); |
2439 } | 2439 } |
2440 | 2440 |
2441 | 2441 |
2442 LInstruction* LChunkBuilder::DoStoreNamedField(HStoreNamedField* instr) { | 2442 LInstruction* LChunkBuilder::DoStoreNamedField(HStoreNamedField* instr) { |
| 2443 bool is_in_object = instr->access().IsInobject(); |
2443 bool needs_write_barrier = instr->NeedsWriteBarrier(); | 2444 bool needs_write_barrier = instr->NeedsWriteBarrier(); |
2444 bool needs_write_barrier_for_map = !instr->transition().is_null() && | 2445 bool needs_write_barrier_for_map = !instr->transition().is_null() && |
2445 instr->NeedsWriteBarrierForMap(); | 2446 instr->NeedsWriteBarrierForMap(); |
2446 | 2447 |
2447 LOperand* obj; | 2448 LOperand* obj; |
2448 if (needs_write_barrier) { | 2449 if (needs_write_barrier) { |
2449 obj = instr->is_in_object() | 2450 obj = is_in_object |
2450 ? UseRegister(instr->object()) | 2451 ? UseRegister(instr->object()) |
2451 : UseTempRegister(instr->object()); | 2452 : UseTempRegister(instr->object()); |
2452 } else { | 2453 } else { |
2453 obj = needs_write_barrier_for_map | 2454 obj = needs_write_barrier_for_map |
2454 ? UseRegister(instr->object()) | 2455 ? UseRegister(instr->object()) |
2455 : UseRegisterAtStart(instr->object()); | 2456 : UseRegisterAtStart(instr->object()); |
2456 } | 2457 } |
2457 | 2458 |
2458 bool can_be_constant = instr->value()->IsConstant() && | 2459 bool can_be_constant = instr->value()->IsConstant() && |
2459 HConstant::cast(instr->value())->NotInNewSpace() && | 2460 HConstant::cast(instr->value())->NotInNewSpace() && |
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2472 val = UseRegisterAtStart(instr->value()); | 2473 val = UseRegisterAtStart(instr->value()); |
2473 } else { | 2474 } else { |
2474 val = UseX87TopOfStack(instr->value()); | 2475 val = UseX87TopOfStack(instr->value()); |
2475 } | 2476 } |
2476 } else { | 2477 } else { |
2477 val = UseRegister(instr->value()); | 2478 val = UseRegister(instr->value()); |
2478 } | 2479 } |
2479 | 2480 |
2480 // We only need a scratch register if we have a write barrier or we | 2481 // We only need a scratch register if we have a write barrier or we |
2481 // have a store into the properties array (not in-object-property). | 2482 // have a store into the properties array (not in-object-property). |
2482 LOperand* temp = (!instr->is_in_object() || needs_write_barrier || | 2483 LOperand* temp = (!is_in_object || needs_write_barrier || |
2483 needs_write_barrier_for_map) ? TempRegister() : NULL; | 2484 needs_write_barrier_for_map) ? TempRegister() : NULL; |
2484 | 2485 |
2485 // We need a temporary register for write barrier of the map field. | 2486 // We need a temporary register for write barrier of the map field. |
2486 LOperand* temp_map = needs_write_barrier_for_map ? TempRegister() : NULL; | 2487 LOperand* temp_map = needs_write_barrier_for_map ? TempRegister() : NULL; |
2487 | 2488 |
2488 LStoreNamedField* result = | 2489 LStoreNamedField* result = |
2489 new(zone()) LStoreNamedField(obj, val, temp, temp_map); | 2490 new(zone()) LStoreNamedField(obj, val, temp, temp_map); |
2490 if ((FLAG_track_fields && instr->field_representation().IsSmi()) || | 2491 if ((FLAG_track_fields && instr->field_representation().IsSmi()) || |
2491 (FLAG_track_heap_object_fields && | 2492 (FLAG_track_heap_object_fields && |
2492 instr->field_representation().IsHeapObject())) { | 2493 instr->field_representation().IsHeapObject())) { |
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2798 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) { | 2799 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) { |
2799 LOperand* object = UseRegister(instr->object()); | 2800 LOperand* object = UseRegister(instr->object()); |
2800 LOperand* index = UseTempRegister(instr->index()); | 2801 LOperand* index = UseTempRegister(instr->index()); |
2801 return DefineSameAsFirst(new(zone()) LLoadFieldByIndex(object, index)); | 2802 return DefineSameAsFirst(new(zone()) LLoadFieldByIndex(object, index)); |
2802 } | 2803 } |
2803 | 2804 |
2804 | 2805 |
2805 } } // namespace v8::internal | 2806 } } // namespace v8::internal |
2806 | 2807 |
2807 #endif // V8_TARGET_ARCH_IA32 | 2808 #endif // V8_TARGET_ARCH_IA32 |
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