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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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260 // The following are used by class Reference. | 260 // The following are used by class Reference. |
261 void LoadReference(Reference* ref); | 261 void LoadReference(Reference* ref); |
262 void UnloadReference(Reference* ref); | 262 void UnloadReference(Reference* ref); |
263 | 263 |
264 Operand ContextOperand(Register context, int index) const { | 264 Operand ContextOperand(Register context, int index) const { |
265 return Operand(context, Context::SlotOffset(index)); | 265 return Operand(context, Context::SlotOffset(index)); |
266 } | 266 } |
267 | 267 |
268 Operand SlotOperand(Slot* slot, Register tmp); | 268 Operand SlotOperand(Slot* slot, Register tmp); |
269 | 269 |
270 Operand ContextSlotOperandCheckExtensions(Slot* slot, | |
271 Register tmp, | |
272 Label* slow); | |
273 | 270 |
274 // Expressions | 271 // Expressions |
275 Operand GlobalObject() const { | 272 Operand GlobalObject() const { |
276 return ContextOperand(esi, Context::GLOBAL_INDEX); | 273 return ContextOperand(esi, Context::GLOBAL_INDEX); |
277 } | 274 } |
278 | 275 |
279 void LoadCondition(Expression* x, | 276 void LoadCondition(Expression* x, |
280 TypeofState typeof_state, | 277 TypeofState typeof_state, |
281 Label* true_target, | 278 Label* true_target, |
282 Label* false_target, | 279 Label* false_target, |
283 bool force_cc); | 280 bool force_cc); |
284 void Load(Expression* x, TypeofState typeof_state = NOT_INSIDE_TYPEOF); | 281 void Load(Expression* x, TypeofState typeof_state = NOT_INSIDE_TYPEOF); |
285 void LoadGlobal(); | 282 void LoadGlobal(); |
286 void LoadGlobalReceiver(Register scratch); | 283 void LoadGlobalReceiver(Register scratch); |
287 | 284 |
288 // Read a value from a slot and leave it on top of the expression stack. | 285 // Read a value from a slot and leave it on top of the expression stack. |
289 void LoadFromSlot(Slot* slot, TypeofState typeof_state); | 286 void LoadFromSlot(Slot* slot, TypeofState typeof_state); |
290 void LoadFromGlobalSlotCheckExtensions(Slot* slot, | |
291 TypeofState typeof_state, | |
292 Register tmp, | |
293 Label* slow); | |
294 | 287 |
295 // Special code for typeof expressions: Unfortunately, we must | 288 // Special code for typeof expressions: Unfortunately, we must |
296 // be careful when loading the expression in 'typeof' | 289 // be careful when loading the expression in 'typeof' |
297 // expressions. We are not allowed to throw reference errors for | 290 // expressions. We are not allowed to throw reference errors for |
298 // non-existing properties of the global object, so we must make it | 291 // non-existing properties of the global object, so we must make it |
299 // look like an explicit property access, instead of an access | 292 // look like an explicit property access, instead of an access |
300 // through the context chain. | 293 // through the context chain. |
301 void LoadTypeofExpression(Expression* x); | 294 void LoadTypeofExpression(Expression* x); |
302 | 295 |
303 void ToBoolean(Label* true_target, Label* false_target); | 296 void ToBoolean(Label* true_target, Label* false_target); |
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441 friend class VirtualFrame; | 434 friend class VirtualFrame; |
442 friend class Reference; | 435 friend class Reference; |
443 | 436 |
444 DISALLOW_COPY_AND_ASSIGN(CodeGenerator); | 437 DISALLOW_COPY_AND_ASSIGN(CodeGenerator); |
445 }; | 438 }; |
446 | 439 |
447 | 440 |
448 } } // namespace v8::internal | 441 } } // namespace v8::internal |
449 | 442 |
450 #endif // V8_CODEGEN_IA32_H_ | 443 #endif // V8_CODEGEN_IA32_H_ |
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