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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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2024 context = UseRegister(instr->context()); | 2024 context = UseRegister(instr->context()); |
2025 value = UseRegister(instr->value()); | 2025 value = UseRegister(instr->value()); |
2026 temp = NULL; | 2026 temp = NULL; |
2027 } | 2027 } |
2028 LInstruction* result = new(zone()) LStoreContextSlot(context, value, temp); | 2028 LInstruction* result = new(zone()) LStoreContextSlot(context, value, temp); |
2029 return instr->RequiresHoleCheck() ? AssignEnvironment(result) : result; | 2029 return instr->RequiresHoleCheck() ? AssignEnvironment(result) : result; |
2030 } | 2030 } |
2031 | 2031 |
2032 | 2032 |
2033 LInstruction* LChunkBuilder::DoLoadNamedField(HLoadNamedField* instr) { | 2033 LInstruction* LChunkBuilder::DoLoadNamedField(HLoadNamedField* instr) { |
2034 ASSERT(instr->representation().IsTagged()); | |
2035 LOperand* obj = UseRegisterAtStart(instr->object()); | 2034 LOperand* obj = UseRegisterAtStart(instr->object()); |
2036 return DefineAsRegister(new(zone()) LLoadNamedField(obj)); | 2035 LOperand* temp = instr->representation().IsDouble() ? TempRegister() : NULL; |
| 2036 ASSERT(temp == NULL || FLAG_track_double_fields); |
| 2037 return DefineAsRegister(new(zone()) LLoadNamedField(obj, temp)); |
2037 } | 2038 } |
2038 | 2039 |
2039 | 2040 |
2040 LInstruction* LChunkBuilder::DoLoadNamedFieldPolymorphic( | 2041 LInstruction* LChunkBuilder::DoLoadNamedFieldPolymorphic( |
2041 HLoadNamedFieldPolymorphic* instr) { | 2042 HLoadNamedFieldPolymorphic* instr) { |
2042 ASSERT(instr->representation().IsTagged()); | 2043 ASSERT(instr->representation().IsTagged()); |
2043 if (instr->need_generic()) { | 2044 if (instr->need_generic()) { |
2044 LOperand* obj = UseFixed(instr->object(), rax); | 2045 LOperand* obj = UseFixed(instr->object(), rax); |
2045 LLoadNamedFieldPolymorphic* result = | 2046 LLoadNamedFieldPolymorphic* result = |
2046 new(zone()) LLoadNamedFieldPolymorphic(obj); | 2047 new(zone()) LLoadNamedFieldPolymorphic(obj); |
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2263 : UseTempRegister(instr->object()); | 2264 : UseTempRegister(instr->object()); |
2264 } else { | 2265 } else { |
2265 obj = needs_write_barrier_for_map | 2266 obj = needs_write_barrier_for_map |
2266 ? UseRegister(instr->object()) | 2267 ? UseRegister(instr->object()) |
2267 : UseRegisterAtStart(instr->object()); | 2268 : UseRegisterAtStart(instr->object()); |
2268 } | 2269 } |
2269 | 2270 |
2270 LOperand* val; | 2271 LOperand* val; |
2271 if (needs_write_barrier) { | 2272 if (needs_write_barrier) { |
2272 val = UseTempRegister(instr->value()); | 2273 val = UseTempRegister(instr->value()); |
2273 } else if (StoreConstantValueAllowed(instr->value())) { | 2274 } else if (StoreConstantValueAllowed(instr->value()) && |
| 2275 !(FLAG_track_double_fields && |
| 2276 instr->field_representation().IsDouble())) { |
2274 val = UseRegisterOrConstant(instr->value()); | 2277 val = UseRegisterOrConstant(instr->value()); |
| 2278 } else if (FLAG_track_fields && instr->field_representation().IsSmi()) { |
| 2279 val = UseTempRegister(instr->value()); |
2275 } else { | 2280 } else { |
2276 val = UseRegister(instr->value()); | 2281 val = UseRegister(instr->value()); |
2277 } | 2282 } |
2278 | 2283 |
2279 // We only need a scratch register if we have a write barrier or we | 2284 // We only need a scratch register if we have a write barrier or we |
2280 // have a store into the properties array (not in-object-property). | 2285 // have a store into the properties array (not in-object-property). |
2281 LOperand* temp = (!instr->is_in_object() || needs_write_barrier || | 2286 LOperand* temp = (!instr->is_in_object() || needs_write_barrier || |
2282 needs_write_barrier_for_map) ? TempRegister() : NULL; | 2287 needs_write_barrier_for_map) ? TempRegister() : NULL; |
2283 | 2288 |
2284 return new(zone()) LStoreNamedField(obj, val, temp); | 2289 LStoreNamedField* result = new(zone()) LStoreNamedField(obj, val, temp); |
| 2290 if ((FLAG_track_fields && instr->field_representation().IsSmi()) || |
| 2291 (FLAG_track_double_fields && instr->field_representation().IsDouble())) { |
| 2292 return AssignEnvironment(result); |
| 2293 } |
| 2294 return result; |
2285 } | 2295 } |
2286 | 2296 |
2287 | 2297 |
2288 LInstruction* LChunkBuilder::DoStoreNamedGeneric(HStoreNamedGeneric* instr) { | 2298 LInstruction* LChunkBuilder::DoStoreNamedGeneric(HStoreNamedGeneric* instr) { |
2289 LOperand* object = UseFixed(instr->object(), rdx); | 2299 LOperand* object = UseFixed(instr->object(), rdx); |
2290 LOperand* value = UseFixed(instr->value(), rax); | 2300 LOperand* value = UseFixed(instr->value(), rax); |
2291 | 2301 |
2292 LStoreNamedGeneric* result = new(zone()) LStoreNamedGeneric(object, value); | 2302 LStoreNamedGeneric* result = new(zone()) LStoreNamedGeneric(object, value); |
2293 return MarkAsCall(result, instr); | 2303 return MarkAsCall(result, instr); |
2294 } | 2304 } |
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2570 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) { | 2580 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) { |
2571 LOperand* object = UseRegister(instr->object()); | 2581 LOperand* object = UseRegister(instr->object()); |
2572 LOperand* index = UseTempRegister(instr->index()); | 2582 LOperand* index = UseTempRegister(instr->index()); |
2573 return DefineSameAsFirst(new(zone()) LLoadFieldByIndex(object, index)); | 2583 return DefineSameAsFirst(new(zone()) LLoadFieldByIndex(object, index)); |
2574 } | 2584 } |
2575 | 2585 |
2576 | 2586 |
2577 } } // namespace v8::internal | 2587 } } // namespace v8::internal |
2578 | 2588 |
2579 #endif // V8_TARGET_ARCH_X64 | 2589 #endif // V8_TARGET_ARCH_X64 |
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