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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 // 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_IA32_H_ | 6 #ifndef VM_INSTRUCTIONS_IA32_H_ |
7 #define VM_INSTRUCTIONS_IA32_H_ | 7 #define VM_INSTRUCTIONS_IA32_H_ |
8 | 8 |
9 #ifndef VM_INSTRUCTIONS_H_ | 9 #ifndef VM_INSTRUCTIONS_H_ |
10 #error Do not include instructions_ia32.h directly; use instructions.h instead. | 10 #error Do not include instructions_ia32.h directly; use instructions.h instead. |
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97 return kCallPattern; | 97 return kCallPattern; |
98 } | 98 } |
99 | 99 |
100 private: | 100 private: |
101 static const int kLengthInBytes = 5; | 101 static const int kLengthInBytes = 5; |
102 | 102 |
103 DISALLOW_COPY_AND_ASSIGN(CallPattern); | 103 DISALLOW_COPY_AND_ASSIGN(CallPattern); |
104 }; | 104 }; |
105 | 105 |
106 | 106 |
107 class JumpPattern : public CallOrJumpPattern<JumpPattern> { | |
108 public: | |
109 JumpPattern(uword pc, const Code& code) : CallOrJumpPattern(pc) {} | |
110 | |
111 static int pattern_length_in_bytes() { return kLengthInBytes; } | |
112 static const int* pattern() { | |
113 static const int kJumpPattern[kLengthInBytes] = {0xE9, -1, -1, -1, -1}; | |
114 return kJumpPattern; | |
115 } | |
116 | |
117 private: | |
118 static const int kLengthInBytes = 5; | |
119 | |
120 DISALLOW_COPY_AND_ASSIGN(JumpPattern); | |
121 }; | |
122 | |
123 | |
124 class ReturnPattern : public InstructionPattern<ReturnPattern> { | 107 class ReturnPattern : public InstructionPattern<ReturnPattern> { |
125 public: | 108 public: |
126 explicit ReturnPattern(uword pc) : InstructionPattern(pc) {} | 109 explicit ReturnPattern(uword pc) : InstructionPattern(pc) {} |
127 | 110 |
128 static const int* pattern() { | 111 static const int* pattern() { |
129 static const int kReturnPattern[kLengthInBytes] = { 0xC3 }; | 112 static const int kReturnPattern[kLengthInBytes] = { 0xC3 }; |
130 return kReturnPattern; | 113 return kReturnPattern; |
131 } | 114 } |
132 static int pattern_length_in_bytes() { return kLengthInBytes; } | 115 static int pattern_length_in_bytes() { return kLengthInBytes; } |
133 | 116 |
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167 | 150 |
168 static int pattern_length_in_bytes() { return kLengthInBytes; } | 151 static int pattern_length_in_bytes() { return kLengthInBytes; } |
169 | 152 |
170 private: | 153 private: |
171 static const int kLengthInBytes = 2; | 154 static const int kLengthInBytes = 2; |
172 }; | 155 }; |
173 | 156 |
174 } // namespace dart | 157 } // namespace dart |
175 | 158 |
176 #endif // VM_INSTRUCTIONS_IA32_H_ | 159 #endif // VM_INSTRUCTIONS_IA32_H_ |
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