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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, 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 // Classes that describe assembly patterns as used by inline caches. | 4 // Classes that describe assembly patterns as used by inline caches. |
5 | 5 |
6 #ifndef VM_INSTRUCTIONS_MIPS_H_ | 6 #ifndef VM_INSTRUCTIONS_MIPS_H_ |
7 #define VM_INSTRUCTIONS_MIPS_H_ | 7 #define VM_INSTRUCTIONS_MIPS_H_ |
8 | 8 |
9 #ifndef VM_INSTRUCTIONS_H_ | 9 #ifndef VM_INSTRUCTIONS_H_ |
10 #error Do not include instructions_mips.h directly; use instructions.h instead. | 10 #error Do not include instructions_mips.h directly; use instructions.h instead. |
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50 | 50 |
51 class CallPattern : public ValueObject { | 51 class CallPattern : public ValueObject { |
52 public: | 52 public: |
53 CallPattern(uword pc, const Code& code); | 53 CallPattern(uword pc, const Code& code); |
54 | 54 |
55 RawICData* IcData(); | 55 RawICData* IcData(); |
56 | 56 |
57 RawCode* TargetCode() const; | 57 RawCode* TargetCode() const; |
58 void SetTargetCode(const Code& target) const; | 58 void SetTargetCode(const Code& target) const; |
59 | 59 |
| 60 static const int kDeoptCallLengthInInstructions = 4; |
| 61 static const int kDeoptCallLengthInBytes = |
| 62 kDeoptCallLengthInInstructions * Instr::kInstrSize; |
| 63 |
| 64 static void InsertDeoptCallAt(uword pc, uword target_address); |
| 65 |
60 private: | 66 private: |
61 const ObjectPool& object_pool_; | 67 const ObjectPool& object_pool_; |
62 | 68 |
63 uword end_; | 69 uword end_; |
64 uword ic_data_load_end_; | 70 uword ic_data_load_end_; |
65 | 71 |
66 intptr_t target_code_pool_index_; | 72 intptr_t target_code_pool_index_; |
67 ICData& ic_data_; | 73 ICData& ic_data_; |
68 | 74 |
69 DISALLOW_COPY_AND_ASSIGN(CallPattern); | 75 DISALLOW_COPY_AND_ASSIGN(CallPattern); |
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127 | 133 |
128 bool IsValid() const; | 134 bool IsValid() const; |
129 | 135 |
130 private: | 136 private: |
131 const uword pc_; | 137 const uword pc_; |
132 }; | 138 }; |
133 | 139 |
134 } // namespace dart | 140 } // namespace dart |
135 | 141 |
136 #endif // VM_INSTRUCTIONS_MIPS_H_ | 142 #endif // VM_INSTRUCTIONS_MIPS_H_ |
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