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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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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1521 UseScratchRegisterScope temps(this); | 1521 UseScratchRegisterScope temps(this); |
1522 Register temp = temps.AcquireX(); | 1522 Register temp = temps.AcquireX(); |
1523 | 1523 |
1524 Ldr(temp, FieldMemOperand(object, HeapObject::kMapOffset)); | 1524 Ldr(temp, FieldMemOperand(object, HeapObject::kMapOffset)); |
1525 CompareInstanceType(temp, temp, LAST_NAME_TYPE); | 1525 CompareInstanceType(temp, temp, LAST_NAME_TYPE); |
1526 Check(ls, kOperandIsNotAName); | 1526 Check(ls, kOperandIsNotAName); |
1527 } | 1527 } |
1528 } | 1528 } |
1529 | 1529 |
1530 | 1530 |
| 1531 void MacroAssembler::AssertUndefinedOrAllocationSite(Register object, |
| 1532 Register scratch) { |
| 1533 if (emit_debug_code()) { |
| 1534 Label done_checking; |
| 1535 AssertNotSmi(object); |
| 1536 JumpIfRoot(object, Heap::kUndefinedValueRootIndex, &done_checking); |
| 1537 Ldr(scratch, FieldMemOperand(object, HeapObject::kMapOffset)); |
| 1538 CompareRoot(scratch, Heap::kAllocationSiteMapRootIndex); |
| 1539 Assert(eq, kExpectedUndefinedOrCell); |
| 1540 Bind(&done_checking); |
| 1541 } |
| 1542 } |
| 1543 |
| 1544 |
1531 void MacroAssembler::AssertString(Register object) { | 1545 void MacroAssembler::AssertString(Register object) { |
1532 if (emit_debug_code()) { | 1546 if (emit_debug_code()) { |
1533 UseScratchRegisterScope temps(this); | 1547 UseScratchRegisterScope temps(this); |
1534 Register temp = temps.AcquireX(); | 1548 Register temp = temps.AcquireX(); |
1535 STATIC_ASSERT(kSmiTag == 0); | 1549 STATIC_ASSERT(kSmiTag == 0); |
1536 Tst(object, kSmiTagMask); | 1550 Tst(object, kSmiTagMask); |
1537 Check(ne, kOperandIsASmiAndNotAString); | 1551 Check(ne, kOperandIsASmiAndNotAString); |
1538 Ldr(temp, FieldMemOperand(object, HeapObject::kMapOffset)); | 1552 Ldr(temp, FieldMemOperand(object, HeapObject::kMapOffset)); |
1539 CompareInstanceType(temp, temp, FIRST_NONSTRING_TYPE); | 1553 CompareInstanceType(temp, temp, FIRST_NONSTRING_TYPE); |
1540 Check(lo, kOperandIsNotAString); | 1554 Check(lo, kOperandIsNotAString); |
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5121 } | 5135 } |
5122 } | 5136 } |
5123 | 5137 |
5124 | 5138 |
5125 #undef __ | 5139 #undef __ |
5126 | 5140 |
5127 | 5141 |
5128 } } // namespace v8::internal | 5142 } } // namespace v8::internal |
5129 | 5143 |
5130 #endif // V8_TARGET_ARCH_A64 | 5144 #endif // V8_TARGET_ARCH_A64 |
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