#ifndef StructureStubInfo_h
#define StructureStubInfo_h
+#include <wtf/Platform.h>
+
#if ENABLE(JIT)
+#include "CodeOrigin.h"
#include "Instruction.h"
#include "MacroAssembler.h"
#include "Opcode.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;
+ }
+ }
+
+ 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(OpcodeID opcodeID)
- : opcodeID(opcodeID)
+ StructureStubInfo()
+ : accessType(access_unset)
+ , seen(false)
{
}
- void initGetByIdSelf(Structure* baseObjectStructure)
+ void initGetByIdSelf(JSGlobalData& globalData, JSCell* owner, Structure* baseObjectStructure)
{
- opcodeID = op_get_by_id_self;
+ accessType = access_get_by_id_self;
- u.getByIdSelf.baseObjectStructure = baseObjectStructure;
- baseObjectStructure->ref();
+ u.getByIdSelf.baseObjectStructure.set(globalData, owner, baseObjectStructure);
}
- void initGetByIdProto(Structure* baseObjectStructure, Structure* prototypeStructure)
+ void initGetByIdProto(JSGlobalData& globalData, JSCell* owner, Structure* baseObjectStructure, Structure* prototypeStructure)
{
- opcodeID = op_get_by_id_proto;
+ accessType = access_get_by_id_proto;
- u.getByIdProto.baseObjectStructure = baseObjectStructure;
- baseObjectStructure->ref();
-
- u.getByIdProto.prototypeStructure = prototypeStructure;
- prototypeStructure->ref();
+ u.getByIdProto.baseObjectStructure.set(globalData, owner, baseObjectStructure);
+ u.getByIdProto.prototypeStructure.set(globalData, owner, prototypeStructure);
}
- void initGetByIdChain(Structure* baseObjectStructure, StructureChain* chain)
+ void initGetByIdChain(JSGlobalData& globalData, JSCell* owner, Structure* baseObjectStructure, StructureChain* chain)
{
- opcodeID = op_get_by_id_chain;
-
- u.getByIdChain.baseObjectStructure = baseObjectStructure;
- baseObjectStructure->ref();
+ accessType = access_get_by_id_chain;
- u.getByIdChain.chain = chain;
- chain->ref();
+ u.getByIdChain.baseObjectStructure.set(globalData, owner, baseObjectStructure);
+ u.getByIdChain.chain.set(globalData, owner, chain);
}
void initGetByIdSelfList(PolymorphicAccessStructureList* structureList, int listSize)
{
- opcodeID = op_get_by_id_self_list;
+ accessType = access_get_by_id_self_list;
- u.getByIdProtoList.structureList = structureList;
- u.getByIdProtoList.listSize = listSize;
+ u.getByIdSelfList.structureList = structureList;
+ u.getByIdSelfList.listSize = listSize;
}
void initGetByIdProtoList(PolymorphicAccessStructureList* structureList, int listSize)
{
- opcodeID = op_get_by_id_proto_list;
+ accessType = access_get_by_id_proto_list;
u.getByIdProtoList.structureList = structureList;
u.getByIdProtoList.listSize = listSize;
// PutById*
- void initPutByIdTransition(Structure* previousStructure, Structure* structure, StructureChain* chain)
+ void initPutByIdTransition(JSGlobalData& globalData, JSCell* owner, Structure* previousStructure, Structure* structure, StructureChain* chain, bool isDirect)
{
- opcodeID = op_put_by_id_transition;
-
- u.putByIdTransition.previousStructure = previousStructure;
- previousStructure->ref();
+ if (isDirect)
+ accessType = access_put_by_id_transition_direct;
+ else
+ accessType = access_put_by_id_transition_normal;
- u.putByIdTransition.structure = structure;
- structure->ref();
-
- u.putByIdTransition.chain = chain;
- chain->ref();
+ u.putByIdTransition.previousStructure.set(globalData, owner, previousStructure);
+ u.putByIdTransition.structure.set(globalData, owner, structure);
+ u.putByIdTransition.chain.set(globalData, owner, chain);
}
- void initPutByIdReplace(Structure* baseObjectStructure)
+ void initPutByIdReplace(JSGlobalData& globalData, JSCell* owner, Structure* baseObjectStructure)
{
- opcodeID = op_put_by_id_replace;
+ accessType = access_put_by_id_replace;
- u.putByIdReplace.baseObjectStructure = baseObjectStructure;
- baseObjectStructure->ref();
+ u.putByIdReplace.baseObjectStructure.set(globalData, owner, baseObjectStructure);
+ }
+
+ void initPutByIdList(PolymorphicPutByIdList* list)
+ {
+ accessType = access_put_by_id_list;
+ u.putByIdList.list = list;
+ }
+
+ void reset()
+ {
+ deref();
+ accessType = access_unset;
+ stubRoutine = MacroAssemblerCodeRef();
}
void deref();
- OpcodeID opcodeID;
+ bool visitWeakReferences();
+
+ bool seenOnce()
+ {
+ return seen;
+ }
+
+ void setSeen()
+ {
+ seen = true;
+ }
+
+ unsigned bytecodeIndex;
+
+ int8_t accessType;
+ int8_t seen;
+
+#if ENABLE(DFG_JIT)
+ CodeOrigin codeOrigin;
+#endif // ENABLE(DFG_JIT)
+
union {
struct {
- Structure* baseObjectStructure;
+ int8_t registersFlushed;
+ int8_t baseGPR;
+#if USE(JSVALUE32_64)
+ int8_t valueTagGPR;
+#endif
+ int8_t valueGPR;
+ int8_t scratchGPR;
+ int16_t deltaCallToDone;
+ int16_t deltaCallToStructCheck;
+ int16_t deltaCallToSlowCase;
+ int16_t deltaCheckImmToCall;
+#if USE(JSVALUE64)
+ int16_t deltaCallToLoadOrStore;
+#else
+ int16_t deltaCallToTagLoadOrStore;
+ int16_t deltaCallToPayloadLoadOrStore;
+#endif
+ } dfg;
+ struct {
+ union {
+ struct {
+ int16_t structureToCompare;
+ int16_t structureCheck;
+#if USE(JSVALUE64)
+ int16_t displacementLabel;
+#else
+ int16_t displacementLabel1;
+ int16_t displacementLabel2;
+#endif
+ int16_t putResult;
+ int16_t coldPathBegin;
+ } get;
+ struct {
+ int16_t structureToCompare;
+#if USE(JSVALUE64)
+ int16_t displacementLabel;
+#else
+ 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 {
- Structure* baseObjectStructure;
- Structure* prototypeStructure;
+ WriteBarrierBase<Structure> baseObjectStructure;
+ WriteBarrierBase<Structure> prototypeStructure;
} getByIdProto;
struct {
- Structure* baseObjectStructure;
- StructureChain* chain;
+ WriteBarrierBase<Structure> baseObjectStructure;
+ WriteBarrierBase<StructureChain> chain;
} getByIdChain;
struct {
PolymorphicAccessStructureList* structureList;
int listSize;
} getByIdProtoList;
struct {
- Structure* previousStructure;
- Structure* structure;
- StructureChain* chain;
+ WriteBarrierBase<Structure> previousStructure;
+ WriteBarrierBase<Structure> structure;
+ WriteBarrierBase<StructureChain> chain;
} putByIdTransition;
struct {
- Structure* baseObjectStructure;
+ WriteBarrierBase<Structure> baseObjectStructure;
} putByIdReplace;
+ struct {
+ PolymorphicPutByIdList* list;
+ } putByIdList;
} u;
- CodeLocationLabel stubRoutine;
+ MacroAssemblerCodeRef stubRoutine;
CodeLocationCall callReturnLocation;
CodeLocationLabel hotPathBegin;
};
+ inline void* getStructureStubInfoReturnLocation(StructureStubInfo* structureStubInfo)
+ {
+ return structureStubInfo->callReturnLocation.executableAddress();
+ }
+
+ inline unsigned getStructureStubInfoBytecodeIndex(StructureStubInfo* structureStubInfo)
+ {
+ return structureStubInfo->bytecodeIndex;
+ }
+
} // namespace JSC
-#endif
+#endif // ENABLE(JIT)
#endif // StructureStubInfo_h
projects / apple / javascriptcore.git / blobdiff