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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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| 7302 ASSERT_EQ(kSmiTagSize, 1); | 7302 ASSERT_EQ(kSmiTagSize, 1); |
| 7303 Register tmp = properties; | 7303 Register tmp = properties; |
| 7304 __ add(tmp, properties, Operand(index, LSL, 1)); | 7304 __ add(tmp, properties, Operand(index, LSL, 1)); |
| 7305 __ ldr(entity_name, FieldMemOperand(tmp, kElementsStartOffset)); | 7305 __ ldr(entity_name, FieldMemOperand(tmp, kElementsStartOffset)); |
| 7306 | 7306 |
| 7307 ASSERT(!tmp.is(entity_name)); | 7307 ASSERT(!tmp.is(entity_name)); |
| 7308 __ LoadRoot(tmp, Heap::kUndefinedValueRootIndex); | 7308 __ LoadRoot(tmp, Heap::kUndefinedValueRootIndex); |
| 7309 __ cmp(entity_name, tmp); | 7309 __ cmp(entity_name, tmp); |
| 7310 __ b(eq, done); | 7310 __ b(eq, done); |
| 7311 | 7311 |
| 7312 if (i != kInlinedProbes - 1) { | 7312 // Load the hole ready for use below: |
| 7313 // Load the hole ready for use below: | 7313 __ LoadRoot(tmp, Heap::kTheHoleValueRootIndex); |
| 7314 __ LoadRoot(tmp, Heap::kTheHoleValueRootIndex); | |
| 7315 | 7314 |
| 7316 // Stop if found the property. | 7315 // Stop if found the property. |
| 7317 __ cmp(entity_name, Operand(Handle<String>(name))); | 7316 __ cmp(entity_name, Operand(Handle<String>(name))); |
| 7318 __ b(eq, miss); | 7317 __ b(eq, miss); |
| 7319 | 7318 |
| 7320 Label the_hole; | 7319 Label the_hole; |
| 7321 __ cmp(entity_name, tmp); | 7320 __ cmp(entity_name, tmp); |
| 7322 __ b(eq, &the_hole); | 7321 __ b(eq, &the_hole); |
| 7323 | 7322 |
| 7324 // Check if the entry name is not a symbol. | 7323 // Check if the entry name is not a symbol. |
| 7325 __ ldr(entity_name, FieldMemOperand(entity_name, HeapObject::kMapOffset)); | 7324 __ ldr(entity_name, FieldMemOperand(entity_name, HeapObject::kMapOffset)); |
| 7326 __ ldrb(entity_name, | 7325 __ ldrb(entity_name, |
| 7327 FieldMemOperand(entity_name, Map::kInstanceTypeOffset)); | 7326 FieldMemOperand(entity_name, Map::kInstanceTypeOffset)); |
| 7328 __ tst(entity_name, Operand(kIsSymbolMask)); | 7327 __ tst(entity_name, Operand(kIsSymbolMask)); |
| 7329 __ b(eq, miss); | 7328 __ b(eq, miss); |
| 7330 | 7329 |
| 7331 __ bind(&the_hole); | 7330 __ bind(&the_hole); |
| 7332 | 7331 |
| 7333 // Restore the properties. | 7332 // Restore the properties. |
| 7334 __ ldr(properties, | 7333 __ ldr(properties, |
| 7335 FieldMemOperand(receiver, JSObject::kPropertiesOffset)); | 7334 FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 7336 } | |
| 7337 } | 7335 } |
| 7338 | 7336 |
| 7339 const int spill_mask = | 7337 const int spill_mask = |
| 7340 (lr.bit() | r6.bit() | r5.bit() | r4.bit() | r3.bit() | | 7338 (lr.bit() | r6.bit() | r5.bit() | r4.bit() | r3.bit() | |
| 7341 r2.bit() | r1.bit() | r0.bit()); | 7339 r2.bit() | r1.bit() | r0.bit()); |
| 7342 | 7340 |
| 7343 __ stm(db_w, sp, spill_mask); | 7341 __ stm(db_w, sp, spill_mask); |
| 7344 __ ldr(r0, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); | 7342 __ ldr(r0, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 7345 __ mov(r1, Operand(Handle<String>(name))); | 7343 __ mov(r1, Operand(Handle<String>(name))); |
| 7346 StringDictionaryLookupStub stub(NEGATIVE_LOOKUP); | 7344 StringDictionaryLookupStub stub(NEGATIVE_LOOKUP); |
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| 7946 | 7944 |
| 7947 __ Pop(lr, r5, r1); | 7945 __ Pop(lr, r5, r1); |
| 7948 __ Ret(); | 7946 __ Ret(); |
| 7949 } | 7947 } |
| 7950 | 7948 |
| 7951 #undef __ | 7949 #undef __ |
| 7952 | 7950 |
| 7953 } } // namespace v8::internal | 7951 } } // namespace v8::internal |
| 7954 | 7952 |
| 7955 #endif // V8_TARGET_ARCH_ARM | 7953 #endif // V8_TARGET_ARCH_ARM |
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