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1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2016, 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 #include "vm/globals.h" // Needed here to get TARGET_ARCH_DBC. | 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_DBC. |
6 #if defined(TARGET_ARCH_DBC) | 6 #if defined(TARGET_ARCH_DBC) |
7 | 7 |
8 #include "vm/instructions.h" | 8 #include "vm/instructions.h" |
9 #include "vm/instructions_dbc.h" | 9 #include "vm/instructions_dbc.h" |
10 | 10 |
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31 case Bytecode::kInstantiateType: | 31 case Bytecode::kInstantiateType: |
32 case Bytecode::kInstantiateTypeArgumentsTOS: | 32 case Bytecode::kInstantiateTypeArgumentsTOS: |
33 case Bytecode::kAssertAssignable: | 33 case Bytecode::kAssertAssignable: |
34 return true; | 34 return true; |
35 default: | 35 default: |
36 return false; | 36 return false; |
37 } | 37 } |
38 } | 38 } |
39 | 39 |
40 | 40 |
41 static bool GetLoadedObjectAt( | 41 static bool GetLoadedObjectAt(uword pc, |
42 uword pc, const ObjectPool& object_pool, Object* obj) { | 42 const ObjectPool& object_pool, |
| 43 Object* obj) { |
43 Instr instr = Bytecode::At(pc); | 44 Instr instr = Bytecode::At(pc); |
44 if (HasLoadFromPool(instr)) { | 45 if (HasLoadFromPool(instr)) { |
45 uint16_t index = Bytecode::DecodeD(instr); | 46 uint16_t index = Bytecode::DecodeD(instr); |
46 if (object_pool.InfoAt(index) == ObjectPool::kTaggedObject) { | 47 if (object_pool.InfoAt(index) == ObjectPool::kTaggedObject) { |
47 *obj = object_pool.ObjectAt(index); | 48 *obj = object_pool.ObjectAt(index); |
48 return true; | 49 return true; |
49 } | 50 } |
50 } | 51 } |
51 return false; | 52 return false; |
52 } | 53 } |
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89 | 90 |
90 | 91 |
91 NativeFunction NativeCallPattern::native_function() const { | 92 NativeFunction NativeCallPattern::native_function() const { |
92 return reinterpret_cast<NativeFunction>( | 93 return reinterpret_cast<NativeFunction>( |
93 object_pool_.RawValueAt(native_function_pool_index_)); | 94 object_pool_.RawValueAt(native_function_pool_index_)); |
94 } | 95 } |
95 | 96 |
96 | 97 |
97 void NativeCallPattern::set_native_function(NativeFunction func) const { | 98 void NativeCallPattern::set_native_function(NativeFunction func) const { |
98 object_pool_.SetRawValueAt(native_function_pool_index_, | 99 object_pool_.SetRawValueAt(native_function_pool_index_, |
99 reinterpret_cast<uword>(func)); | 100 reinterpret_cast<uword>(func)); |
100 } | 101 } |
101 | 102 |
102 | 103 |
103 // Decodes a load sequence ending at 'end' (the last instruction of the load | 104 // Decodes a load sequence ending at 'end' (the last instruction of the load |
104 // sequence is the instruction before the one at end). Returns a pointer to | 105 // sequence is the instruction before the one at end). Returns a pointer to |
105 // the first instruction in the sequence. Returns the register being loaded | 106 // the first instruction in the sequence. Returns the register being loaded |
106 // and the loaded object in the output parameters 'reg' and 'obj' | 107 // and the loaded object in the output parameters 'reg' and 'obj' |
107 // respectively. | 108 // respectively. |
108 uword InstructionPattern::DecodeLoadObject(uword end, | 109 uword InstructionPattern::DecodeLoadObject(uword end, |
109 const ObjectPool& object_pool, | 110 const ObjectPool& object_pool, |
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133 // and the index in the pool being read from in the output parameters 'reg' | 134 // and the index in the pool being read from in the output parameters 'reg' |
134 // and 'index' respectively. | 135 // and 'index' respectively. |
135 uword InstructionPattern::DecodeLoadWordFromPool(uword end, | 136 uword InstructionPattern::DecodeLoadWordFromPool(uword end, |
136 Register* reg, | 137 Register* reg, |
137 intptr_t* index) { | 138 intptr_t* index) { |
138 UNIMPLEMENTED(); | 139 UNIMPLEMENTED(); |
139 return 0; | 140 return 0; |
140 } | 141 } |
141 | 142 |
142 | 143 |
143 bool DecodeLoadObjectFromPoolOrThread(uword pc, | 144 bool DecodeLoadObjectFromPoolOrThread(uword pc, const Code& code, Object* obj) { |
144 const Code& code, | |
145 Object* obj) { | |
146 ASSERT(code.ContainsInstructionAt(pc)); | 145 ASSERT(code.ContainsInstructionAt(pc)); |
147 const ObjectPool& pool = ObjectPool::Handle(code.object_pool()); | 146 const ObjectPool& pool = ObjectPool::Handle(code.object_pool()); |
148 return GetLoadedObjectAt(pc, pool, obj); | 147 return GetLoadedObjectAt(pc, pool, obj); |
149 } | 148 } |
150 | 149 |
151 | 150 |
152 RawICData* CallPattern::IcData() { | 151 RawICData* CallPattern::IcData() { |
153 if (ic_data_.IsNull()) { | 152 if (ic_data_.IsNull()) { |
154 bool found = GetLoadedObjectAt(ic_data_load_end_, object_pool_, &ic_data_); | 153 bool found = GetLoadedObjectAt(ic_data_load_end_, object_pool_, &ic_data_); |
155 ASSERT(found); | 154 ASSERT(found); |
156 } | 155 } |
157 return ic_data_.raw(); | 156 return ic_data_.raw(); |
158 } | 157 } |
159 | 158 |
160 | 159 |
161 RawCode* CallPattern::TargetCode() const { | 160 RawCode* CallPattern::TargetCode() const { |
162 return reinterpret_cast<RawCode*>( | 161 return reinterpret_cast<RawCode*>( |
163 object_pool_.ObjectAt(target_code_pool_index_)); | 162 object_pool_.ObjectAt(target_code_pool_index_)); |
164 } | 163 } |
165 | 164 |
166 | 165 |
167 void CallPattern::SetTargetCode(const Code& target_code) const { | 166 void CallPattern::SetTargetCode(const Code& target_code) const { |
168 object_pool_.SetObjectAt(target_code_pool_index_, target_code); | 167 object_pool_.SetObjectAt(target_code_pool_index_, target_code); |
169 } | 168 } |
170 | 169 |
171 | 170 |
172 void CallPattern::InsertDeoptCallAt(uword pc) { | 171 void CallPattern::InsertDeoptCallAt(uword pc) { |
173 const uint8_t argc = Bytecode::IsCallOpcode(Bytecode::At(pc)) ? | 172 const uint8_t argc = Bytecode::IsCallOpcode(Bytecode::At(pc)) |
174 Bytecode::DecodeArgc(Bytecode::At(pc)) : 0; | 173 ? Bytecode::DecodeArgc(Bytecode::At(pc)) |
| 174 : 0; |
175 *reinterpret_cast<Instr*>(pc) = Bytecode::Encode(Bytecode::kDeopt, argc, 0); | 175 *reinterpret_cast<Instr*>(pc) = Bytecode::Encode(Bytecode::kDeopt, argc, 0); |
176 } | 176 } |
177 | 177 |
178 | 178 |
179 SwitchableCallPattern::SwitchableCallPattern(uword pc, const Code& code) | 179 SwitchableCallPattern::SwitchableCallPattern(uword pc, const Code& code) |
180 : object_pool_(ObjectPool::Handle(code.GetObjectPool())), | 180 : object_pool_(ObjectPool::Handle(code.GetObjectPool())), |
181 data_pool_index_(-1), | 181 data_pool_index_(-1), |
182 target_pool_index_(-1) { | 182 target_pool_index_(-1) { |
183 UNIMPLEMENTED(); | 183 UNIMPLEMENTED(); |
184 } | 184 } |
185 | 185 |
186 | 186 |
187 RawObject* SwitchableCallPattern::data() const { | 187 RawObject* SwitchableCallPattern::data() const { |
188 return object_pool_.ObjectAt(data_pool_index_); | 188 return object_pool_.ObjectAt(data_pool_index_); |
189 } | 189 } |
190 | 190 |
191 | 191 |
192 RawCode* SwitchableCallPattern::target() const { | 192 RawCode* SwitchableCallPattern::target() const { |
193 return reinterpret_cast<RawCode*>( | 193 return reinterpret_cast<RawCode*>(object_pool_.ObjectAt(target_pool_index_)); |
194 object_pool_.ObjectAt(target_pool_index_)); | |
195 } | 194 } |
196 | 195 |
197 | 196 |
198 void SwitchableCallPattern::SetData(const Object& data) const { | 197 void SwitchableCallPattern::SetData(const Object& data) const { |
199 ASSERT(!Object::Handle(object_pool_.ObjectAt(data_pool_index_)).IsCode()); | 198 ASSERT(!Object::Handle(object_pool_.ObjectAt(data_pool_index_)).IsCode()); |
200 object_pool_.SetObjectAt(data_pool_index_, data); | 199 object_pool_.SetObjectAt(data_pool_index_, data); |
201 } | 200 } |
202 | 201 |
203 | 202 |
204 void SwitchableCallPattern::SetTarget(const Code& target) const { | 203 void SwitchableCallPattern::SetTarget(const Code& target) const { |
205 ASSERT(Object::Handle(object_pool_.ObjectAt(target_pool_index_)).IsCode()); | 204 ASSERT(Object::Handle(object_pool_.ObjectAt(target_pool_index_)).IsCode()); |
206 object_pool_.SetObjectAt(target_pool_index_, target); | 205 object_pool_.SetObjectAt(target_pool_index_, target); |
207 } | 206 } |
208 | 207 |
209 | 208 |
210 ReturnPattern::ReturnPattern(uword pc) : pc_(pc) { | 209 ReturnPattern::ReturnPattern(uword pc) : pc_(pc) { |
211 USE(pc_); | 210 USE(pc_); |
212 } | 211 } |
213 | 212 |
214 | 213 |
215 bool ReturnPattern::IsValid() const { | 214 bool ReturnPattern::IsValid() const { |
216 UNIMPLEMENTED(); | 215 UNIMPLEMENTED(); |
217 return false; | 216 return false; |
218 } | 217 } |
219 | 218 |
220 } // namespace dart | 219 } // namespace dart |
221 | 220 |
222 #endif // defined TARGET_ARCH_DBC | 221 #endif // defined TARGET_ARCH_DBC |
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