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Add OffHeap Query in J9VM #20187

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merged 2 commits into from
Sep 19, 2024
Merged

Add OffHeap Query in J9VM #20187

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2a68c8d
Add OffHeap Query in J9VM
rmnattas Sep 18, 2024
721d444
Add OffHeap Query in J9ServerVM
rmnattas Sep 18, 2024
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21 changes: 21 additions & 0 deletions runtime/compiler/env/VMJ9.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2439,6 +2439,27 @@ TR_J9VMBase::isHotReferenceFieldRequired()
return TR::Compiler->om.isHotReferenceFieldRequired();
}

bool
TR_J9VMBase::isIndexableDataAddrPresent()
{
#if defined(J9VM_ENV_DATA64)
return FALSE != _jitConfig->javaVM->isIndexableDataAddrPresent;
#else
return false;
#endif /* defined(J9VM_ENV_DATA64) */
}

/**
* Query if off-heap large array allocation is enabled
*
* @return true if off-heap large array allocation is enabled, false otherwise
*/
bool
TR_J9VMBase::isOffHeapAllocationEnabled()
{
return TR::Compiler->om.isOffHeapAllocationEnabled();
}

bool
TR_J9VMBase::scanReferenceSlotsInClassForOffset(TR::Compilation * comp, TR_OpaqueClassBlock * classPointer, int32_t offset)
{
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2 changes: 2 additions & 0 deletions runtime/compiler/env/VMJ9.h
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Expand Up @@ -1452,6 +1452,8 @@ class TR_J9VMBase : public TR_FrontEnd
virtual void markHotField( TR::Compilation *, TR::SymbolReference *, TR_OpaqueClassBlock *, bool);
virtual void reportHotField(int32_t reducedCpuUtil, J9Class* clazz, uint8_t fieldOffset, uint32_t reducedFrequency);
virtual bool isHotReferenceFieldRequired();
virtual bool isIndexableDataAddrPresent();
virtual bool isOffHeapAllocationEnabled();
virtual void markClassForTenuredAlignment( TR::Compilation *comp, TR_OpaqueClassBlock *opclazz, uint32_t alignFromStart);

virtual bool shouldDelayAotLoad() { return false; }
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25 changes: 25 additions & 0 deletions runtime/compiler/env/VMJ9Server.cpp
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Expand Up @@ -2551,6 +2551,31 @@ TR_J9ServerVM::isPortableRestoreModeEnabled()
return vmInfo->_isPortableRestoreMode;
}

bool
TR_J9ServerVM::isIndexableDataAddrPresent()
{
#if defined(J9VM_ENV_DATA64)
JITServer::ServerStream *stream = _compInfoPT->getMethodBeingCompiled()->_stream;
auto *vmInfo = _compInfoPT->getClientData()->getOrCacheVMInfo(stream);
return vmInfo->_isIndexableDataAddrPresent;
#else
return false;
#endif /* defined(J9VM_ENV_DATA64) */
}

/**
* Query if off-heap large array allocation is enabled
*
* @return true if off-heap large array allocation is enabled, false otherwise
*/
bool
TR_J9ServerVM::isOffHeapAllocationEnabled()
{
JITServer::ServerStream *stream = _compInfoPT->getMethodBeingCompiled()->_stream;
auto *vmInfo = _compInfoPT->getClientData()->getOrCacheVMInfo(stream);
return vmInfo->_isOffHeapAllocationEnabled;
}

bool
TR_J9SharedCacheServerVM::isClassLibraryMethod(TR_OpaqueMethodBlock *method, bool vettedForAOT)
{
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2 changes: 2 additions & 0 deletions runtime/compiler/env/VMJ9Server.hpp
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Expand Up @@ -251,6 +251,8 @@ class TR_J9ServerVM: public TR_J9VM
virtual bool inSnapshotMode() override;
virtual bool isSnapshotModeEnabled() override;
virtual bool isPortableRestoreModeEnabled() override;
virtual bool isIndexableDataAddrPresent();
virtual bool isOffHeapAllocationEnabled();

private:
bool instanceOfOrCheckCastHelper(J9Class *instanceClass, J9Class* castClass, bool cacheUpdate);
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