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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 | |
207 : public BitField<LanguageMode, ContextualModeBits::kNext, 2> {}; | |
208 STATIC_ASSERT(static_cast<int>(NOT_CONTEXTUAL) == 0); | |
209 const ExtraICState state_; | |
210 | |
211 public: | 204 public: |
212 static const uint32_t kNextBitFieldOffset = LanguageModeBits::kNext; | |
213 | |
214 static const ExtraICState kStrongModeState = STRONG | |
215 << LanguageModeBits::kShift; | |
216 | |
217 explicit LoadICState(ExtraICState extra_ic_state) : state_(extra_ic_state) {} | 205 explicit LoadICState(ExtraICState extra_ic_state) : state_(extra_ic_state) {} |
218 | 206 |
219 explicit LoadICState(ContextualMode mode, LanguageMode language_mode) | 207 explicit LoadICState(ContextualMode mode) |
220 : state_(ContextualModeBits::encode(mode) | | 208 : state_(ContextualModeBits::encode(mode)) {} |
221 LanguageModeBits::encode(language_mode)) {} | |
222 | 209 |
223 ExtraICState GetExtraICState() const { return state_; } | 210 ExtraICState GetExtraICState() const { return state_; } |
224 | 211 |
225 ContextualMode contextual_mode() const { | 212 ContextualMode contextual_mode() const { |
226 return ContextualModeBits::decode(state_); | 213 return ContextualModeBits::decode(state_); |
227 } | 214 } |
228 | 215 |
229 LanguageMode language_mode() const { | |
230 return LanguageModeBits::decode(state_); | |
231 } | |
232 | |
233 static ContextualMode GetContextualMode(ExtraICState state) { | 216 static ContextualMode GetContextualMode(ExtraICState state) { |
234 return LoadICState(state).contextual_mode(); | 217 return LoadICState(state).contextual_mode(); |
235 } | 218 } |
236 | 219 |
237 static LanguageMode GetLanguageMode(ExtraICState state) { | 220 private: |
238 return LoadICState(state).language_mode(); | 221 class ContextualModeBits : public BitField<ContextualMode, 0, 1> {}; |
239 } | 222 STATIC_ASSERT(static_cast<int>(NOT_CONTEXTUAL) == 0); |
| 223 |
| 224 const ExtraICState state_; |
240 }; | 225 }; |
241 | 226 |
242 | 227 |
243 class StoreICState final BASE_EMBEDDED { | 228 class StoreICState final BASE_EMBEDDED { |
244 public: | 229 public: |
245 explicit StoreICState(ExtraICState extra_ic_state) : state_(extra_ic_state) {} | 230 explicit StoreICState(ExtraICState extra_ic_state) : state_(extra_ic_state) {} |
246 | 231 |
247 explicit StoreICState(LanguageMode mode) | 232 explicit StoreICState(LanguageMode mode) |
248 : state_(LanguageModeState::encode(mode)) {} | 233 : state_(LanguageModeState::encode(mode)) {} |
249 | 234 |
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265 static const ExtraICState kStrictModeState = STRICT | 250 static const ExtraICState kStrictModeState = STRICT |
266 << LanguageModeState::kShift; | 251 << LanguageModeState::kShift; |
267 | 252 |
268 private: | 253 private: |
269 const ExtraICState state_; | 254 const ExtraICState state_; |
270 }; | 255 }; |
271 } | 256 } |
272 } | 257 } |
273 | 258 |
274 #endif // V8_IC_STATE_H_ | 259 #endif // V8_IC_STATE_H_ |
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