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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_ARM64_MACRO_ASSEMBLER_ARM64_INL_H_ | 5 #ifndef V8_ARM64_MACRO_ASSEMBLER_ARM64_INL_H_ |
6 #define V8_ARM64_MACRO_ASSEMBLER_ARM64_INL_H_ | 6 #define V8_ARM64_MACRO_ASSEMBLER_ARM64_INL_H_ |
7 | 7 |
8 #include <ctype.h> | 8 #include <ctype.h> |
9 | 9 |
10 #include "src/globals.h" | 10 #include "src/globals.h" |
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1427 | 1427 |
1428 | 1428 |
1429 void MacroAssembler::IsObjectNameType(Register object, | 1429 void MacroAssembler::IsObjectNameType(Register object, |
1430 Register type, | 1430 Register type, |
1431 Label* fail) { | 1431 Label* fail) { |
1432 CompareObjectType(object, type, type, LAST_NAME_TYPE); | 1432 CompareObjectType(object, type, type, LAST_NAME_TYPE); |
1433 B(hi, fail); | 1433 B(hi, fail); |
1434 } | 1434 } |
1435 | 1435 |
1436 | 1436 |
| 1437 void MacroAssembler::IsObjectJSObjectType(Register heap_object, |
| 1438 Register map, |
| 1439 Register scratch, |
| 1440 Label* fail) { |
| 1441 Ldr(map, FieldMemOperand(heap_object, HeapObject::kMapOffset)); |
| 1442 IsInstanceJSObjectType(map, scratch, fail); |
| 1443 } |
| 1444 |
| 1445 |
| 1446 void MacroAssembler::IsInstanceJSObjectType(Register map, |
| 1447 Register scratch, |
| 1448 Label* fail) { |
| 1449 Ldrb(scratch, FieldMemOperand(map, Map::kInstanceTypeOffset)); |
| 1450 // If cmp result is lt, the following ccmp will clear all flags. |
| 1451 // Z == 0, N == V implies gt condition. |
| 1452 Cmp(scratch, FIRST_NONCALLABLE_SPEC_OBJECT_TYPE); |
| 1453 Ccmp(scratch, LAST_NONCALLABLE_SPEC_OBJECT_TYPE, NoFlag, ge); |
| 1454 |
| 1455 // If we didn't get a valid label object just fall through and leave the |
| 1456 // flags updated. |
| 1457 if (fail != NULL) { |
| 1458 B(gt, fail); |
| 1459 } |
| 1460 } |
| 1461 |
| 1462 |
1437 void MacroAssembler::IsObjectJSStringType(Register object, | 1463 void MacroAssembler::IsObjectJSStringType(Register object, |
1438 Register type, | 1464 Register type, |
1439 Label* not_string, | 1465 Label* not_string, |
1440 Label* string) { | 1466 Label* string) { |
1441 Ldr(type, FieldMemOperand(object, HeapObject::kMapOffset)); | 1467 Ldr(type, FieldMemOperand(object, HeapObject::kMapOffset)); |
1442 Ldrb(type.W(), FieldMemOperand(type, Map::kInstanceTypeOffset)); | 1468 Ldrb(type.W(), FieldMemOperand(type, Map::kInstanceTypeOffset)); |
1443 | 1469 |
1444 STATIC_ASSERT(kStringTag == 0); | 1470 STATIC_ASSERT(kStringTag == 0); |
1445 DCHECK((string != NULL) || (not_string != NULL)); | 1471 DCHECK((string != NULL) || (not_string != NULL)); |
1446 if (string == NULL) { | 1472 if (string == NULL) { |
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1653 // characters are reserved for controlling features of the instrumentation. | 1679 // characters are reserved for controlling features of the instrumentation. |
1654 DCHECK(isprint(marker_name[0]) && isprint(marker_name[1])); | 1680 DCHECK(isprint(marker_name[0]) && isprint(marker_name[1])); |
1655 | 1681 |
1656 InstructionAccurateScope scope(this, 1); | 1682 InstructionAccurateScope scope(this, 1); |
1657 movn(xzr, (marker_name[1] << 8) | marker_name[0]); | 1683 movn(xzr, (marker_name[1] << 8) | marker_name[0]); |
1658 } | 1684 } |
1659 | 1685 |
1660 } } // namespace v8::internal | 1686 } } // namespace v8::internal |
1661 | 1687 |
1662 #endif // V8_ARM64_MACRO_ASSEMBLER_ARM64_INL_H_ | 1688 #endif // V8_ARM64_MACRO_ASSEMBLER_ARM64_INL_H_ |
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