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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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_IC_STATE_H_ | 5 #ifndef V8_IC_STATE_H_ |
6 #define V8_IC_STATE_H_ | 6 #define V8_IC_STATE_H_ |
7 | 7 |
8 #include "src/macro-assembler.h" | 8 #include "src/macro-assembler.h" |
9 | 9 |
10 namespace v8 { | 10 namespace v8 { |
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194 | 194 |
195 static const char* GetStateName(CompareICState::State state); | 195 static const char* GetStateName(CompareICState::State state); |
196 | 196 |
197 static State TargetState(State old_state, State old_left, State old_right, | 197 static State TargetState(State old_state, State old_left, State old_right, |
198 Token::Value op, bool has_inlined_smi_code, | 198 Token::Value op, bool has_inlined_smi_code, |
199 Handle<Object> x, Handle<Object> y); | 199 Handle<Object> x, Handle<Object> y); |
200 }; | 200 }; |
201 | 201 |
202 | 202 |
203 class LoadICState final BASE_EMBEDDED { | 203 class LoadICState final BASE_EMBEDDED { |
204 private: | |
205 class ContextualModeBits : public BitField<ContextualMode, 0, 1> {}; | |
206 class LanguageModeBits : public BitField<LanguageMode, 1, 2> {}; | |
207 STATIC_ASSERT(static_cast<int>(NOT_CONTEXTUAL) == 0); | |
208 const ExtraICState state_; | |
209 | |
210 public: | 204 public: |
211 static const ExtraICState kStrongModeState = STRONG | |
212 << LanguageModeBits::kShift; | |
213 | |
214 explicit LoadICState(ExtraICState extra_ic_state) : state_(extra_ic_state) {} | 205 explicit LoadICState(ExtraICState extra_ic_state) : state_(extra_ic_state) {} |
215 | 206 |
216 explicit LoadICState(ContextualMode mode, LanguageMode language_mode) | 207 explicit LoadICState(ContextualMode mode) |
217 : state_(ContextualModeBits::encode(mode) | | 208 : state_(ContextualModeBits::encode(mode)) {} |
218 LanguageModeBits::encode(language_mode)) {} | |
219 | 209 |
220 ExtraICState GetExtraICState() const { return state_; } | 210 ExtraICState GetExtraICState() const { return state_; } |
221 | 211 |
222 ContextualMode contextual_mode() const { | 212 ContextualMode contextual_mode() const { |
223 return ContextualModeBits::decode(state_); | 213 return ContextualModeBits::decode(state_); |
224 } | 214 } |
225 | 215 |
226 LanguageMode language_mode() const { | |
227 return LanguageModeBits::decode(state_); | |
228 } | |
229 | |
230 static ContextualMode GetContextualMode(ExtraICState state) { | 216 static ContextualMode GetContextualMode(ExtraICState state) { |
231 return LoadICState(state).contextual_mode(); | 217 return LoadICState(state).contextual_mode(); |
232 } | 218 } |
233 | 219 |
234 static LanguageMode GetLanguageMode(ExtraICState state) { | 220 private: |
235 return LoadICState(state).language_mode(); | 221 class ContextualModeBits : public BitField<ContextualMode, 0, 1> {}; |
236 } | 222 STATIC_ASSERT(static_cast<int>(NOT_CONTEXTUAL) == 0); |
| 223 |
| 224 const ExtraICState state_; |
237 }; | 225 }; |
238 | 226 |
239 | 227 |
240 class StoreICState final BASE_EMBEDDED { | 228 class StoreICState final BASE_EMBEDDED { |
241 public: | 229 public: |
242 explicit StoreICState(ExtraICState extra_ic_state) : state_(extra_ic_state) {} | 230 explicit StoreICState(ExtraICState extra_ic_state) : state_(extra_ic_state) {} |
243 | 231 |
244 explicit StoreICState(LanguageMode mode) | 232 explicit StoreICState(LanguageMode mode) |
245 : state_(LanguageModeState::encode(mode)) {} | 233 : state_(LanguageModeState::encode(mode)) {} |
246 | 234 |
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262 static const ExtraICState kStrictModeState = STRICT | 250 static const ExtraICState kStrictModeState = STRICT |
263 << LanguageModeState::kShift; | 251 << LanguageModeState::kShift; |
264 | 252 |
265 private: | 253 private: |
266 const ExtraICState state_; | 254 const ExtraICState state_; |
267 }; | 255 }; |
268 } | 256 } |
269 } | 257 } |
270 | 258 |
271 #endif // V8_IC_STATE_H_ | 259 #endif // V8_IC_STATE_H_ |
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