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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef VM_OBJECT_H_ | 5 #ifndef VM_OBJECT_H_ |
6 #define VM_OBJECT_H_ | 6 #define VM_OBJECT_H_ |
7 | 7 |
8 #include "include/dart_api.h" | 8 #include "include/dart_api.h" |
9 #include "platform/assert.h" | 9 #include "platform/assert.h" |
10 #include "platform/utils.h" | 10 #include "platform/utils.h" |
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3548 | 3548 |
3549 | 3549 |
3550 // ObjectPool contains constants, immediates and addresses embedded in code | 3550 // ObjectPool contains constants, immediates and addresses embedded in code |
3551 // and deoptimization infos. Each entry has an type-info associated with it | 3551 // and deoptimization infos. Each entry has an type-info associated with it |
3552 // which is stored in a typed data array (info_array). | 3552 // which is stored in a typed data array (info_array). |
3553 class ObjectPool : public Object { | 3553 class ObjectPool : public Object { |
3554 public: | 3554 public: |
3555 enum EntryType { | 3555 enum EntryType { |
3556 kTaggedObject, | 3556 kTaggedObject, |
3557 kImmediate, | 3557 kImmediate, |
| 3558 kExternalLabel, |
3558 }; | 3559 }; |
3559 | 3560 |
3560 struct Entry { | 3561 struct Entry { |
3561 Entry() : raw_value_(), type_() { } | 3562 Entry() : raw_value_(), type_() { } |
3562 explicit Entry(const Object* obj) : obj_(obj), type_(kTaggedObject) { } | 3563 explicit Entry(const Object* obj) : obj_(obj), type_(kTaggedObject) { } |
3563 Entry(uword value, EntryType info) : raw_value_(value), type_(info) { } | 3564 Entry(uword value, EntryType info) : raw_value_(value), type_(info) { } |
3564 union { | 3565 union { |
3565 const Object* obj_; | 3566 const Object* obj_; |
3566 uword raw_value_; | 3567 uword raw_value_; |
3567 }; | 3568 }; |
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8035 | 8036 |
8036 | 8037 |
8037 RawObject* MegamorphicCache::GetTargetFunction(const Array& array, | 8038 RawObject* MegamorphicCache::GetTargetFunction(const Array& array, |
8038 intptr_t index) { | 8039 intptr_t index) { |
8039 return array.At((index * kEntryLength) + kTargetFunctionIndex); | 8040 return array.At((index * kEntryLength) + kTargetFunctionIndex); |
8040 } | 8041 } |
8041 | 8042 |
8042 } // namespace dart | 8043 } // namespace dart |
8043 | 8044 |
8044 #endif // VM_OBJECT_H_ | 8045 #endif // VM_OBJECT_H_ |
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