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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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| 7410 ASSERT_EQ(kSmiTagSize, 1); | 7410 ASSERT_EQ(kSmiTagSize, 1); |
| 7411 Register tmp = properties; | 7411 Register tmp = properties; |
| 7412 __ sll(scratch0, index, 1); | 7412 __ sll(scratch0, index, 1); |
| 7413 __ Addu(tmp, properties, scratch0); | 7413 __ Addu(tmp, properties, scratch0); |
| 7414 __ lw(entity_name, FieldMemOperand(tmp, kElementsStartOffset)); | 7414 __ lw(entity_name, FieldMemOperand(tmp, kElementsStartOffset)); |
| 7415 | 7415 |
| 7416 ASSERT(!tmp.is(entity_name)); | 7416 ASSERT(!tmp.is(entity_name)); |
| 7417 __ LoadRoot(tmp, Heap::kUndefinedValueRootIndex); | 7417 __ LoadRoot(tmp, Heap::kUndefinedValueRootIndex); |
| 7418 __ Branch(done, eq, entity_name, Operand(tmp)); | 7418 __ Branch(done, eq, entity_name, Operand(tmp)); |
| 7419 | 7419 |
| 7420 if (i != kInlinedProbes - 1) { | 7420 // Load the hole ready for use below: |
| 7421 // Load the hole ready for use below: | 7421 __ LoadRoot(tmp, Heap::kTheHoleValueRootIndex); |
| 7422 __ LoadRoot(tmp, Heap::kTheHoleValueRootIndex); | |
| 7423 | 7422 |
| 7424 // Stop if found the property. | 7423 // Stop if found the property. |
| 7425 __ Branch(miss, eq, entity_name, Operand(Handle<String>(name))); | 7424 __ Branch(miss, eq, entity_name, Operand(Handle<String>(name))); |
| 7426 | 7425 |
| 7427 Label the_hole; | 7426 Label the_hole; |
| 7428 __ Branch(&the_hole, eq, entity_name, Operand(tmp)); | 7427 __ Branch(&the_hole, eq, entity_name, Operand(tmp)); |
| 7429 | 7428 |
| 7430 // Check if the entry name is not a symbol. | 7429 // Check if the entry name is not a symbol. |
| 7431 __ lw(entity_name, FieldMemOperand(entity_name, HeapObject::kMapOffset)); | 7430 __ lw(entity_name, FieldMemOperand(entity_name, HeapObject::kMapOffset)); |
| 7432 __ lbu(entity_name, | 7431 __ lbu(entity_name, |
| 7433 FieldMemOperand(entity_name, Map::kInstanceTypeOffset)); | 7432 FieldMemOperand(entity_name, Map::kInstanceTypeOffset)); |
| 7434 __ And(scratch0, entity_name, Operand(kIsSymbolMask)); | 7433 __ And(scratch0, entity_name, Operand(kIsSymbolMask)); |
| 7435 __ Branch(miss, eq, scratch0, Operand(zero_reg)); | 7434 __ Branch(miss, eq, scratch0, Operand(zero_reg)); |
| 7436 | 7435 |
| 7437 __ bind(&the_hole); | 7436 __ bind(&the_hole); |
| 7438 | 7437 |
| 7439 // Restore the properties. | 7438 // Restore the properties. |
| 7440 __ lw(properties, | 7439 __ lw(properties, |
| 7441 FieldMemOperand(receiver, JSObject::kPropertiesOffset)); | 7440 FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 7442 } | |
| 7443 } | 7441 } |
| 7444 | 7442 |
| 7445 const int spill_mask = | 7443 const int spill_mask = |
| 7446 (ra.bit() | t2.bit() | t1.bit() | t0.bit() | a3.bit() | | 7444 (ra.bit() | t2.bit() | t1.bit() | t0.bit() | a3.bit() | |
| 7447 a2.bit() | a1.bit() | a0.bit() | v0.bit()); | 7445 a2.bit() | a1.bit() | a0.bit() | v0.bit()); |
| 7448 | 7446 |
| 7449 __ MultiPush(spill_mask); | 7447 __ MultiPush(spill_mask); |
| 7450 __ lw(a0, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); | 7448 __ lw(a0, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 7451 __ li(a1, Operand(Handle<String>(name))); | 7449 __ li(a1, Operand(Handle<String>(name))); |
| 7452 StringDictionaryLookupStub stub(NEGATIVE_LOOKUP); | 7450 StringDictionaryLookupStub stub(NEGATIVE_LOOKUP); |
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| 8062 __ Pop(ra, t1, a1); | 8060 __ Pop(ra, t1, a1); |
| 8063 __ Ret(); | 8061 __ Ret(); |
| 8064 } | 8062 } |
| 8065 | 8063 |
| 8066 | 8064 |
| 8067 #undef __ | 8065 #undef __ |
| 8068 | 8066 |
| 8069 } } // namespace v8::internal | 8067 } } // namespace v8::internal |
| 8070 | 8068 |
| 8071 #endif // V8_TARGET_ARCH_MIPS | 8069 #endif // V8_TARGET_ARCH_MIPS |
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