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/*
* Copyright (C) 2013-2016 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FTLAbstractHeapRepository_h
#define FTLAbstractHeapRepository_h
#if ENABLE(FTL_JIT)
#include "B3Value.h"
#include "DFGArrayMode.h"
#include "FTLAbstractHeap.h"
#include "IndexingType.h"
namespace JSC { namespace FTL {
#define FOR_EACH_ABSTRACT_HEAP(macro) \
macro(typedArrayProperties)
#define FOR_EACH_ABSTRACT_FIELD(macro) \
macro(ArrayBuffer_data, ArrayBuffer::offsetOfData()) \
macro(Butterfly_arrayBuffer, Butterfly::offsetOfArrayBuffer()) \
macro(Butterfly_publicLength, Butterfly::offsetOfPublicLength()) \
macro(Butterfly_vectorLength, Butterfly::offsetOfVectorLength()) \
macro(CallFrame_callerFrame, CallFrame::callerFrameOffset()) \
macro(DirectArguments_callee, DirectArguments::offsetOfCallee()) \
macro(DirectArguments_length, DirectArguments::offsetOfLength()) \
macro(DirectArguments_minCapacity, DirectArguments::offsetOfMinCapacity()) \
macro(DirectArguments_overrides, DirectArguments::offsetOfOverrides()) \
macro(GetterSetter_getter, GetterSetter::offsetOfGetter()) \
macro(GetterSetter_setter, GetterSetter::offsetOfSetter()) \
macro(JSArrayBufferView_length, JSArrayBufferView::offsetOfLength()) \
macro(JSArrayBufferView_mode, JSArrayBufferView::offsetOfMode()) \
macro(JSArrayBufferView_vector, JSArrayBufferView::offsetOfVector()) \
macro(JSCell_cellState, JSCell::cellStateOffset()) \
macro(JSCell_header, 0) \
macro(JSCell_indexingType, JSCell::indexingTypeOffset()) \
macro(JSCell_structureID, JSCell::structureIDOffset()) \
macro(JSCell_typeInfoFlags, JSCell::typeInfoFlagsOffset()) \
macro(JSCell_typeInfoType, JSCell::typeInfoTypeOffset()) \
macro(JSCell_usefulBytes, JSCell::indexingTypeOffset()) \
macro(JSFunction_executable, JSFunction::offsetOfExecutable()) \
macro(JSFunction_scope, JSFunction::offsetOfScopeChain()) \
macro(JSFunction_rareData, JSFunction::offsetOfRareData()) \
macro(JSObject_butterfly, JSObject::butterflyOffset()) \
macro(JSPropertyNameEnumerator_cachedInlineCapacity, JSPropertyNameEnumerator::cachedInlineCapacityOffset()) \
macro(JSPropertyNameEnumerator_cachedPropertyNamesVector, JSPropertyNameEnumerator::cachedPropertyNamesVectorOffset()) \
macro(JSPropertyNameEnumerator_cachedStructureID, JSPropertyNameEnumerator::cachedStructureIDOffset()) \
macro(JSPropertyNameEnumerator_endGenericPropertyIndex, JSPropertyNameEnumerator::endGenericPropertyIndexOffset()) \
macro(JSPropertyNameEnumerator_endStructurePropertyIndex, JSPropertyNameEnumerator::endStructurePropertyIndexOffset()) \
macro(JSPropertyNameEnumerator_indexLength, JSPropertyNameEnumerator::indexedLengthOffset()) \
macro(JSScope_next, JSScope::offsetOfNext()) \
macro(JSString_flags, JSString::offsetOfFlags()) \
macro(JSString_length, JSString::offsetOfLength()) \
macro(JSString_value, JSString::offsetOfValue()) \
macro(JSSymbolTableObject_symbolTable, JSSymbolTableObject::offsetOfSymbolTable()) \
macro(JSWrapperObject_internalValue, JSWrapperObject::internalValueOffset()) \
macro(MarkedAllocator_freeListHead, MarkedAllocator::offsetOfFreeListHead()) \
macro(ScopedArguments_overrodeThings, ScopedArguments::offsetOfOverrodeThings()) \
macro(ScopedArguments_scope, ScopedArguments::offsetOfScope()) \
macro(ScopedArguments_table, ScopedArguments::offsetOfTable()) \
macro(ScopedArguments_totalLength, ScopedArguments::offsetOfTotalLength()) \
macro(ScopedArgumentsTable_arguments, ScopedArgumentsTable::offsetOfArguments()) \
macro(ScopedArgumentsTable_length, ScopedArgumentsTable::offsetOfLength()) \
macro(StringImpl_data, StringImpl::dataOffset()) \
macro(StringImpl_hashAndFlags, StringImpl::flagsOffset()) \
macro(Structure_classInfo, Structure::classInfoOffset()) \
macro(Structure_globalObject, Structure::globalObjectOffset()) \
macro(Structure_prototype, Structure::prototypeOffset()) \
macro(Structure_structureID, Structure::structureIDOffset()) \
macro(Symbol_privateName, Symbol::offsetOfPrivateName())
#define FOR_EACH_INDEXED_ABSTRACT_HEAP(macro) \
macro(DirectArguments_storage, DirectArguments::storageOffset(), sizeof(EncodedJSValue)) \
macro(JSEnvironmentRecord_variables, JSEnvironmentRecord::offsetOfVariables(), sizeof(EncodedJSValue)) \
macro(JSPropertyNameEnumerator_cachedPropertyNamesVectorContents, 0, sizeof(WriteBarrier<JSString>)) \
macro(JSRopeString_fibers, JSRopeString::offsetOfFibers(), sizeof(WriteBarrier<JSString>)) \
macro(MarkedSpace_Subspace_impreciseAllocators, OBJECT_OFFSETOF(MarkedSpace::Subspace, impreciseAllocators), sizeof(MarkedAllocator)) \
macro(MarkedSpace_Subspace_preciseAllocators, OBJECT_OFFSETOF(MarkedSpace::Subspace, preciseAllocators), sizeof(MarkedAllocator)) \
macro(ScopedArguments_overflowStorage, ScopedArguments::overflowStorageOffset(), sizeof(EncodedJSValue)) \
macro(WriteBarrierBuffer_bufferContents, 0, sizeof(JSCell*)) \
macro(characters8, 0, sizeof(LChar)) \
macro(characters16, 0, sizeof(UChar)) \
macro(indexedInt32Properties, 0, sizeof(EncodedJSValue)) \
macro(indexedDoubleProperties, 0, sizeof(double)) \
macro(indexedContiguousProperties, 0, sizeof(EncodedJSValue)) \
macro(indexedArrayStorageProperties, 0, sizeof(EncodedJSValue)) \
macro(scopedArgumentsTableArguments, 0, sizeof(int32_t)) \
macro(singleCharacterStrings, 0, sizeof(JSString*)) \
macro(structureTable, 0, sizeof(Structure*)) \
macro(variables, 0, sizeof(Register))
#define FOR_EACH_NUMBERED_ABSTRACT_HEAP(macro) \
macro(properties)
// This class is meant to be cacheable between compilations, but it doesn't have to be.
// Doing so saves on creation of nodes. But clearing it will save memory.
class AbstractHeapRepository {
WTF_MAKE_NONCOPYABLE(AbstractHeapRepository);
public:
AbstractHeapRepository();
~AbstractHeapRepository();
AbstractHeap root;
#define ABSTRACT_HEAP_DECLARATION(name) AbstractHeap name;
FOR_EACH_ABSTRACT_HEAP(ABSTRACT_HEAP_DECLARATION)
#undef ABSTRACT_HEAP_DECLARATION
#define ABSTRACT_FIELD_DECLARATION(name, offset) AbstractHeap name;
FOR_EACH_ABSTRACT_FIELD(ABSTRACT_FIELD_DECLARATION)
#undef ABSTRACT_FIELD_DECLARATION
AbstractHeap& JSCell_freeListNext;
#define INDEXED_ABSTRACT_HEAP_DECLARATION(name, offset, size) IndexedAbstractHeap name;
FOR_EACH_INDEXED_ABSTRACT_HEAP(INDEXED_ABSTRACT_HEAP_DECLARATION)
#undef INDEXED_ABSTRACT_HEAP_DECLARATION
#define NUMBERED_ABSTRACT_HEAP_DECLARATION(name) NumberedAbstractHeap name;
FOR_EACH_NUMBERED_ABSTRACT_HEAP(NUMBERED_ABSTRACT_HEAP_DECLARATION)
#undef NUMBERED_ABSTRACT_HEAP_DECLARATION
AbsoluteAbstractHeap absolute;
IndexedAbstractHeap* forIndexingType(IndexingType indexingType)
{
switch (indexingType) {
case ALL_BLANK_INDEXING_TYPES:
case ALL_UNDECIDED_INDEXING_TYPES:
return 0;
case ALL_INT32_INDEXING_TYPES:
return &indexedInt32Properties;
case ALL_DOUBLE_INDEXING_TYPES:
return &indexedDoubleProperties;
case ALL_CONTIGUOUS_INDEXING_TYPES:
return &indexedContiguousProperties;
case ALL_ARRAY_STORAGE_INDEXING_TYPES:
return &indexedArrayStorageProperties;
default:
RELEASE_ASSERT_NOT_REACHED();
return 0;
}
}
IndexedAbstractHeap& forArrayType(DFG::Array::Type type)
{
switch (type) {
case DFG::Array::Int32:
return indexedInt32Properties;
case DFG::Array::Double:
return indexedDoubleProperties;
case DFG::Array::Contiguous:
return indexedContiguousProperties;
case DFG::Array::ArrayStorage:
case DFG::Array::SlowPutArrayStorage:
return indexedArrayStorageProperties;
default:
RELEASE_ASSERT_NOT_REACHED();
return indexedInt32Properties;
}
}
void decorateMemory(const AbstractHeap*, B3::Value*);
void decorateCCallRead(const AbstractHeap*, B3::Value*);
void decorateCCallWrite(const AbstractHeap*, B3::Value*);
void decoratePatchpointRead(const AbstractHeap*, B3::Value*);
void decoratePatchpointWrite(const AbstractHeap*, B3::Value*);
void computeRangesAndDecorateInstructions();
private:
struct HeapForValue {
HeapForValue()
{
}
HeapForValue(const AbstractHeap* heap, B3::Value* value)
: heap(heap)
, value(value)
{
}
const AbstractHeap* heap { nullptr };
B3::Value* value { nullptr };
};
Vector<HeapForValue> m_heapForMemory;
Vector<HeapForValue> m_heapForCCallRead;
Vector<HeapForValue> m_heapForCCallWrite;
Vector<HeapForValue> m_heapForPatchpointRead;
Vector<HeapForValue> m_heapForPatchpointWrite;
};
} } // namespace JSC::FTL
#endif // ENABLE(FTL_JIT)
#endif // FTLAbstractHeapRepository_h
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