diff options
Diffstat (limited to 'Source/JavaScriptCore/bytecode/StructureStubInfo.h')
| -rw-r--r-- | Source/JavaScriptCore/bytecode/StructureStubInfo.h | 485 |
1 files changed, 244 insertions, 241 deletions
diff --git a/Source/JavaScriptCore/bytecode/StructureStubInfo.h b/Source/JavaScriptCore/bytecode/StructureStubInfo.h index 445ffe6c6..f5c39357c 100644 --- a/Source/JavaScriptCore/bytecode/StructureStubInfo.h +++ b/Source/JavaScriptCore/bytecode/StructureStubInfo.h @@ -36,282 +36,285 @@ #include "JITStubRoutine.h" #include "MacroAssembler.h" #include "Opcode.h" +#include "PolymorphicAccessStructureList.h" #include "Structure.h" #include "StructureStubClearingWatchpoint.h" #include <wtf/OwnPtr.h> namespace JSC { - class PolymorphicPutByIdList; - - enum AccessType { - access_get_by_id_self, - access_get_by_id_proto, - access_get_by_id_chain, - access_get_by_id_self_list, - access_get_by_id_proto_list, - access_put_by_id_transition_normal, - access_put_by_id_transition_direct, - access_put_by_id_replace, - access_put_by_id_list, - access_unset, - access_get_by_id_generic, - access_put_by_id_generic, - access_get_array_length, - access_get_string_length, - }; - - inline bool isGetByIdAccess(AccessType accessType) - { - switch (accessType) { - case access_get_by_id_self: - case access_get_by_id_proto: - case access_get_by_id_chain: - case access_get_by_id_self_list: - case access_get_by_id_proto_list: - case access_get_by_id_generic: - case access_get_array_length: - case access_get_string_length: - return true; - default: - return false; - } +class PolymorphicPutByIdList; + +enum AccessType { + access_get_by_id_self, + access_get_by_id_proto, + access_get_by_id_chain, + access_get_by_id_self_list, + access_get_by_id_proto_list, + access_put_by_id_transition_normal, + access_put_by_id_transition_direct, + access_put_by_id_replace, + access_put_by_id_list, + access_unset, + access_get_by_id_generic, + access_put_by_id_generic, + access_get_array_length, + access_get_string_length, +}; + +inline bool isGetByIdAccess(AccessType accessType) +{ + switch (accessType) { + case access_get_by_id_self: + case access_get_by_id_proto: + case access_get_by_id_chain: + case access_get_by_id_self_list: + case access_get_by_id_proto_list: + case access_get_by_id_generic: + case access_get_array_length: + case access_get_string_length: + return true; + default: + return false; } +} - inline bool isPutByIdAccess(AccessType accessType) +inline bool isPutByIdAccess(AccessType accessType) +{ + switch (accessType) { + case access_put_by_id_transition_normal: + case access_put_by_id_transition_direct: + case access_put_by_id_replace: + case access_put_by_id_list: + case access_put_by_id_generic: + return true; + default: + return false; + } +} + +struct StructureStubInfo { + StructureStubInfo() + : accessType(access_unset) + , seen(false) + , resetByGC(false) + { + } + + void initGetByIdSelf(VM& vm, JSCell* owner, Structure* baseObjectStructure) { - switch (accessType) { - case access_put_by_id_transition_normal: - case access_put_by_id_transition_direct: - case access_put_by_id_replace: - case access_put_by_id_list: - case access_put_by_id_generic: - return true; - default: - return false; - } + accessType = access_get_by_id_self; + + u.getByIdSelf.baseObjectStructure.set(vm, owner, baseObjectStructure); + } + + void initGetByIdProto(VM& vm, JSCell* owner, Structure* baseObjectStructure, Structure* prototypeStructure, bool isDirect) + { + accessType = access_get_by_id_proto; + + u.getByIdProto.baseObjectStructure.set(vm, owner, baseObjectStructure); + u.getByIdProto.prototypeStructure.set(vm, owner, prototypeStructure); + u.getByIdProto.isDirect = isDirect; + } + + void initGetByIdChain(VM& vm, JSCell* owner, Structure* baseObjectStructure, StructureChain* chain, unsigned count, bool isDirect) + { + accessType = access_get_by_id_chain; + + u.getByIdChain.baseObjectStructure.set(vm, owner, baseObjectStructure); + u.getByIdChain.chain.set(vm, owner, chain); + u.getByIdChain.count = count; + u.getByIdChain.isDirect = isDirect; + } + + void initGetByIdSelfList(PolymorphicAccessStructureList* structureList, int listSize) + { + accessType = access_get_by_id_self_list; + + u.getByIdSelfList.structureList = structureList; + u.getByIdSelfList.listSize = listSize; + } + + void initGetByIdProtoList(PolymorphicAccessStructureList* structureList, int listSize) + { + accessType = access_get_by_id_proto_list; + + u.getByIdProtoList.structureList = structureList; + u.getByIdProtoList.listSize = listSize; } - struct StructureStubInfo { - StructureStubInfo() - : accessType(access_unset) - , seen(false) - { - } - - void initGetByIdSelf(JSGlobalData& globalData, JSCell* owner, Structure* baseObjectStructure) - { - accessType = access_get_by_id_self; - - u.getByIdSelf.baseObjectStructure.set(globalData, owner, baseObjectStructure); - } - - void initGetByIdProto(JSGlobalData& globalData, JSCell* owner, Structure* baseObjectStructure, Structure* prototypeStructure, bool isDirect) - { - accessType = access_get_by_id_proto; - - u.getByIdProto.baseObjectStructure.set(globalData, owner, baseObjectStructure); - u.getByIdProto.prototypeStructure.set(globalData, owner, prototypeStructure); - u.getByIdProto.isDirect = isDirect; - } - - void initGetByIdChain(JSGlobalData& globalData, JSCell* owner, Structure* baseObjectStructure, StructureChain* chain, unsigned count, bool isDirect) - { - accessType = access_get_by_id_chain; - - u.getByIdChain.baseObjectStructure.set(globalData, owner, baseObjectStructure); - u.getByIdChain.chain.set(globalData, owner, chain); - u.getByIdChain.count = count; - u.getByIdChain.isDirect = isDirect; - } - - void initGetByIdSelfList(PolymorphicAccessStructureList* structureList, int listSize) - { - accessType = access_get_by_id_self_list; - - u.getByIdSelfList.structureList = structureList; - u.getByIdSelfList.listSize = listSize; - } - - void initGetByIdProtoList(PolymorphicAccessStructureList* structureList, int listSize) - { - accessType = access_get_by_id_proto_list; - - u.getByIdProtoList.structureList = structureList; - u.getByIdProtoList.listSize = listSize; - } - - // PutById* - - void initPutByIdTransition(JSGlobalData& globalData, JSCell* owner, Structure* previousStructure, Structure* structure, StructureChain* chain, bool isDirect) - { - if (isDirect) - accessType = access_put_by_id_transition_direct; - else - accessType = access_put_by_id_transition_normal; - - u.putByIdTransition.previousStructure.set(globalData, owner, previousStructure); - u.putByIdTransition.structure.set(globalData, owner, structure); - u.putByIdTransition.chain.set(globalData, owner, chain); - } - - void initPutByIdReplace(JSGlobalData& globalData, JSCell* owner, Structure* baseObjectStructure) - { - accessType = access_put_by_id_replace; + // PutById* + + void initPutByIdTransition(VM& vm, JSCell* owner, Structure* previousStructure, Structure* structure, StructureChain* chain, bool isDirect) + { + if (isDirect) + accessType = access_put_by_id_transition_direct; + else + accessType = access_put_by_id_transition_normal; + + u.putByIdTransition.previousStructure.set(vm, owner, previousStructure); + u.putByIdTransition.structure.set(vm, owner, structure); + u.putByIdTransition.chain.set(vm, owner, chain); + } + + void initPutByIdReplace(VM& vm, JSCell* owner, Structure* baseObjectStructure) + { + accessType = access_put_by_id_replace; - u.putByIdReplace.baseObjectStructure.set(globalData, owner, baseObjectStructure); - } + u.putByIdReplace.baseObjectStructure.set(vm, owner, baseObjectStructure); + } - void initPutByIdList(PolymorphicPutByIdList* list) - { - accessType = access_put_by_id_list; - u.putByIdList.list = list; - } + void initPutByIdList(PolymorphicPutByIdList* list) + { + accessType = access_put_by_id_list; + u.putByIdList.list = list; + } - void reset() - { - deref(); - accessType = access_unset; - stubRoutine.clear(); - watchpoints.clear(); - } + void reset() + { + deref(); + accessType = access_unset; + stubRoutine.clear(); + watchpoints.clear(); + } - void deref(); + void deref(); - bool visitWeakReferences(); + bool visitWeakReferences(); - bool seenOnce() - { - return seen; - } - - void setSeen() - { - seen = true; - } + bool seenOnce() + { + return seen; + } + + void setSeen() + { + seen = true; + } - StructureStubClearingWatchpoint* addWatchpoint(CodeBlock* codeBlock) - { - return WatchpointsOnStructureStubInfo::ensureReferenceAndAddWatchpoint( - watchpoints, codeBlock, this); - } + StructureStubClearingWatchpoint* addWatchpoint(CodeBlock* codeBlock) + { + return WatchpointsOnStructureStubInfo::ensureReferenceAndAddWatchpoint( + watchpoints, codeBlock, this); + } - unsigned bytecodeIndex; + unsigned bytecodeIndex; - int8_t accessType; - int8_t seen; + int8_t accessType; + bool seen : 1; + bool resetByGC : 1; #if ENABLE(DFG_JIT) - CodeOrigin codeOrigin; + CodeOrigin codeOrigin; #endif // ENABLE(DFG_JIT) - union { - struct { - int8_t registersFlushed; - int8_t baseGPR; + union { + struct { + int8_t registersFlushed; + int8_t baseGPR; #if USE(JSVALUE32_64) - int8_t valueTagGPR; + int8_t valueTagGPR; #endif - int8_t valueGPR; - DFG::RegisterSetPOD usedRegisters; - int32_t deltaCallToDone; - int32_t deltaCallToStorageLoad; - int32_t deltaCallToStructCheck; - int32_t deltaCallToSlowCase; - int32_t deltaCheckImmToCall; + int8_t valueGPR; + DFG::RegisterSetPOD usedRegisters; + int32_t deltaCallToDone; + int32_t deltaCallToStorageLoad; + int32_t deltaCallToStructCheck; + int32_t deltaCallToSlowCase; + int32_t deltaCheckImmToCall; #if USE(JSVALUE64) - int32_t deltaCallToLoadOrStore; + int32_t deltaCallToLoadOrStore; #else - int32_t deltaCallToTagLoadOrStore; - int32_t deltaCallToPayloadLoadOrStore; + int32_t deltaCallToTagLoadOrStore; + int32_t deltaCallToPayloadLoadOrStore; #endif - } dfg; - struct { - union { - struct { - int16_t structureToCompare; - int16_t structureCheck; - int16_t propertyStorageLoad; + } dfg; + struct { + union { + struct { + int16_t structureToCompare; + int16_t structureCheck; + int16_t propertyStorageLoad; #if USE(JSVALUE64) - int16_t displacementLabel; + int16_t displacementLabel; #else - int16_t displacementLabel1; - int16_t displacementLabel2; + int16_t displacementLabel1; + int16_t displacementLabel2; #endif - int16_t putResult; - int16_t coldPathBegin; - } get; - struct { - int16_t structureToCompare; - int16_t propertyStorageLoad; + int16_t putResult; + int16_t coldPathBegin; + } get; + struct { + int16_t structureToCompare; + int16_t propertyStorageLoad; #if USE(JSVALUE64) - int16_t displacementLabel; + int16_t displacementLabel; #else - int16_t displacementLabel1; - int16_t displacementLabel2; + int16_t displacementLabel1; + int16_t displacementLabel2; #endif - } put; - } u; - int16_t methodCheckProtoObj; - int16_t methodCheckProtoStructureToCompare; - int16_t methodCheckPutFunction; - } baseline; - } patch; - - union { - struct { - // It would be unwise to put anything here, as it will surely be overwritten. - } unset; - struct { - WriteBarrierBase<Structure> baseObjectStructure; - } getByIdSelf; - struct { - WriteBarrierBase<Structure> baseObjectStructure; - WriteBarrierBase<Structure> prototypeStructure; - bool isDirect; - } getByIdProto; - struct { - WriteBarrierBase<Structure> baseObjectStructure; - WriteBarrierBase<StructureChain> chain; - unsigned count : 31; - bool isDirect : 1; - } getByIdChain; - struct { - PolymorphicAccessStructureList* structureList; - int listSize; - } getByIdSelfList; - struct { - PolymorphicAccessStructureList* structureList; - int listSize; - } getByIdProtoList; - struct { - WriteBarrierBase<Structure> previousStructure; - WriteBarrierBase<Structure> structure; - WriteBarrierBase<StructureChain> chain; - } putByIdTransition; - struct { - WriteBarrierBase<Structure> baseObjectStructure; - } putByIdReplace; - struct { - PolymorphicPutByIdList* list; - } putByIdList; - } u; - - RefPtr<JITStubRoutine> stubRoutine; - CodeLocationCall callReturnLocation; - CodeLocationLabel hotPathBegin; - RefPtr<WatchpointsOnStructureStubInfo> watchpoints; - }; - - inline void* getStructureStubInfoReturnLocation(StructureStubInfo* structureStubInfo) - { - return structureStubInfo->callReturnLocation.executableAddress(); - } - - inline unsigned getStructureStubInfoBytecodeIndex(StructureStubInfo* structureStubInfo) - { - return structureStubInfo->bytecodeIndex; - } + } put; + } u; + int16_t methodCheckProtoObj; + int16_t methodCheckProtoStructureToCompare; + int16_t methodCheckPutFunction; + } baseline; + } patch; + + union { + struct { + // It would be unwise to put anything here, as it will surely be overwritten. + } unset; + struct { + WriteBarrierBase<Structure> baseObjectStructure; + } getByIdSelf; + struct { + WriteBarrierBase<Structure> baseObjectStructure; + WriteBarrierBase<Structure> prototypeStructure; + bool isDirect; + } getByIdProto; + struct { + WriteBarrierBase<Structure> baseObjectStructure; + WriteBarrierBase<StructureChain> chain; + unsigned count : 31; + bool isDirect : 1; + } getByIdChain; + struct { + PolymorphicAccessStructureList* structureList; + int listSize; + } getByIdSelfList; + struct { + PolymorphicAccessStructureList* structureList; + int listSize; + } getByIdProtoList; + struct { + WriteBarrierBase<Structure> previousStructure; + WriteBarrierBase<Structure> structure; + WriteBarrierBase<StructureChain> chain; + } putByIdTransition; + struct { + WriteBarrierBase<Structure> baseObjectStructure; + } putByIdReplace; + struct { + PolymorphicPutByIdList* list; + } putByIdList; + } u; + + RefPtr<JITStubRoutine> stubRoutine; + CodeLocationCall callReturnLocation; + CodeLocationLabel hotPathBegin; + RefPtr<WatchpointsOnStructureStubInfo> watchpoints; +}; + +inline void* getStructureStubInfoReturnLocation(StructureStubInfo* structureStubInfo) +{ + return structureStubInfo->callReturnLocation.executableAddress(); +} + +inline unsigned getStructureStubInfoBytecodeIndex(StructureStubInfo* structureStubInfo) +{ + return structureStubInfo->bytecodeIndex; +} } // namespace JSC |