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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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1290 // Check that the receiver does not require access checks. We need | 1290 // Check that the receiver does not require access checks. We need |
1291 // to do this because this generic stub does not perform map checks. | 1291 // to do this because this generic stub does not perform map checks. |
1292 __ ldrb(ip, FieldMemOperand(r4, Map::kBitFieldOffset)); | 1292 __ ldrb(ip, FieldMemOperand(r4, Map::kBitFieldOffset)); |
1293 __ tst(ip, Operand(1 << Map::kIsAccessCheckNeeded)); | 1293 __ tst(ip, Operand(1 << Map::kIsAccessCheckNeeded)); |
1294 __ b(ne, &slow); | 1294 __ b(ne, &slow); |
1295 // Check if the object is a JS array or not. | 1295 // Check if the object is a JS array or not. |
1296 __ ldrb(r4, FieldMemOperand(r4, Map::kInstanceTypeOffset)); | 1296 __ ldrb(r4, FieldMemOperand(r4, Map::kInstanceTypeOffset)); |
1297 __ cmp(r4, Operand(JS_ARRAY_TYPE)); | 1297 __ cmp(r4, Operand(JS_ARRAY_TYPE)); |
1298 __ b(eq, &array); | 1298 __ b(eq, &array); |
1299 // Check that the object is some kind of JSObject. | 1299 // Check that the object is some kind of JSObject. |
1300 __ cmp(r4, Operand(FIRST_JS_RECEIVER_TYPE)); | 1300 __ cmp(r4, Operand(FIRST_JS_OBJECT_TYPE)); |
1301 __ b(lt, &slow); | 1301 __ b(lt, &slow); |
1302 __ cmp(r4, Operand(JS_PROXY_TYPE)); | |
1303 __ b(eq, &slow); | |
1304 __ cmp(r4, Operand(JS_FUNCTION_PROXY_TYPE)); | |
1305 __ b(eq, &slow); | |
1306 | 1302 |
1307 // Object case: Check key against length in the elements array. | 1303 // Object case: Check key against length in the elements array. |
1308 __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); | 1304 __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
1309 // Check that the object is in fast mode and writable. | 1305 // Check that the object is in fast mode and writable. |
1310 __ ldr(r4, FieldMemOperand(elements, HeapObject::kMapOffset)); | 1306 __ ldr(r4, FieldMemOperand(elements, HeapObject::kMapOffset)); |
1311 __ LoadRoot(ip, Heap::kFixedArrayMapRootIndex); | 1307 __ LoadRoot(ip, Heap::kFixedArrayMapRootIndex); |
1312 __ cmp(r4, ip); | 1308 __ cmp(r4, ip); |
1313 __ b(ne, &slow); | 1309 __ b(ne, &slow); |
1314 // Check array bounds. Both the key and the length of FixedArray are smis. | 1310 // Check array bounds. Both the key and the length of FixedArray are smis. |
1315 __ ldr(ip, FieldMemOperand(elements, FixedArray::kLengthOffset)); | 1311 __ ldr(ip, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
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1641 Register reg = Assembler::GetRn(instr_at_patch); | 1637 Register reg = Assembler::GetRn(instr_at_patch); |
1642 patcher.masm()->tst(reg, Operand(kSmiTagMask)); | 1638 patcher.masm()->tst(reg, Operand(kSmiTagMask)); |
1643 patcher.EmitCondition(eq); | 1639 patcher.EmitCondition(eq); |
1644 } | 1640 } |
1645 } | 1641 } |
1646 | 1642 |
1647 | 1643 |
1648 } } // namespace v8::internal | 1644 } } // namespace v8::internal |
1649 | 1645 |
1650 #endif // V8_TARGET_ARCH_ARM | 1646 #endif // V8_TARGET_ARCH_ARM |
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