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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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2352 } else if (operand->IsRegister()) { | 2352 } else if (operand->IsRegister()) { |
2353 __ push(ToRegister(operand)); | 2353 __ push(ToRegister(operand)); |
2354 } else { | 2354 } else { |
2355 __ push(ToOperand(operand)); | 2355 __ push(ToOperand(operand)); |
2356 } | 2356 } |
2357 } | 2357 } |
2358 | 2358 |
2359 | 2359 |
2360 // Check for cases where EmitLoadFieldOrConstantFunction needs to walk the | 2360 // Check for cases where EmitLoadFieldOrConstantFunction needs to walk the |
2361 // prototype chain, which causes unbounded code generation. | 2361 // prototype chain, which causes unbounded code generation. |
2362 static bool CompactEmit( | 2362 static bool CompactEmit(SmallMapList* list, |
2363 SmallMapList* list, Handle<String> name, int i, Isolate* isolate) { | 2363 Handle<String> name, |
| 2364 int i, |
| 2365 Isolate* isolate) { |
| 2366 Handle<Map> map = list->at(i); |
| 2367 // If the map has ElementsKind transitions, we will generate map checks |
| 2368 // for each kind in __ CompareMap(..., ALLOW_ELEMENTS_TRANSITION_MAPS). |
| 2369 if (map->elements_transition_map() != NULL) return false; |
2364 LookupResult lookup(isolate); | 2370 LookupResult lookup(isolate); |
2365 Handle<Map> map = list->at(i); | |
2366 map->LookupInDescriptors(NULL, *name, &lookup); | 2371 map->LookupInDescriptors(NULL, *name, &lookup); |
2367 return lookup.IsFound() && | 2372 return lookup.IsFound() && |
2368 (lookup.type() == FIELD || lookup.type() == CONSTANT_FUNCTION); | 2373 (lookup.type() == FIELD || lookup.type() == CONSTANT_FUNCTION); |
2369 } | 2374 } |
2370 | 2375 |
2371 | 2376 |
2372 void LCodeGen::DoLoadNamedFieldPolymorphic(LLoadNamedFieldPolymorphic* instr) { | 2377 void LCodeGen::DoLoadNamedFieldPolymorphic(LLoadNamedFieldPolymorphic* instr) { |
2373 Register object = ToRegister(instr->object()); | 2378 Register object = ToRegister(instr->object()); |
2374 Register result = ToRegister(instr->result()); | 2379 Register result = ToRegister(instr->result()); |
2375 | 2380 |
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5227 FixedArray::kHeaderSize - kPointerSize)); | 5232 FixedArray::kHeaderSize - kPointerSize)); |
5228 __ bind(&done); | 5233 __ bind(&done); |
5229 } | 5234 } |
5230 | 5235 |
5231 | 5236 |
5232 #undef __ | 5237 #undef __ |
5233 | 5238 |
5234 } } // namespace v8::internal | 5239 } } // namespace v8::internal |
5235 | 5240 |
5236 #endif // V8_TARGET_ARCH_IA32 | 5241 #endif // V8_TARGET_ARCH_IA32 |
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