--- /dev/null
+/*
+ * Copyright (C) 2013 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 "DFGArrayMode.h"
+#include "FTLAbstractHeap.h"
+#include "IndexingType.h"
+
+namespace JSC { namespace FTL {
+
+#define FOR_EACH_ABSTRACT_HEAP(macro) \
+ macro(length) \
+ macro(structureTable) \
+ macro(typedArrayProperties) \
+ macro(WriteBarrierBuffer_bufferContents)
+
+#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(JSArrayBufferView_length, JSArrayBufferView::offsetOfLength()) \
+ macro(JSArrayBufferView_mode, JSArrayBufferView::offsetOfMode()) \
+ macro(JSArrayBufferView_vector, JSArrayBufferView::offsetOfVector()) \
+ macro(JSCell_structureID, JSCell::structureIDOffset()) \
+ macro(JSCell_typeInfoFlags, JSCell::typeInfoFlagsOffset()) \
+ macro(JSCell_typeInfoType, JSCell::typeInfoTypeOffset()) \
+ macro(JSCell_indexingType, JSCell::indexingTypeOffset()) \
+ macro(JSCell_gcData, JSCell::gcDataOffset()) \
+ macro(JSFunction_executable, JSFunction::offsetOfExecutable()) \
+ macro(JSFunction_scope, JSFunction::offsetOfScopeChain()) \
+ macro(JSObject_butterfly, JSObject::butterflyOffset()) \
+ macro(JSScope_next, JSScope::offsetOfNext()) \
+ macro(JSString_flags, JSString::offsetOfFlags()) \
+ macro(JSString_length, JSString::offsetOfLength()) \
+ macro(JSString_value, JSString::offsetOfValue()) \
+ macro(JSVariableObject_registers, JSVariableObject::offsetOfRegisters()) \
+ macro(JSWrapperObject_internalValue, JSWrapperObject::internalValueOffset()) \
+ macro(MarkedAllocator_freeListHead, MarkedAllocator::offsetOfFreeListHead()) \
+ macro(MarkedBlock_markBits, MarkedBlock::offsetOfMarks()) \
+ 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())
+
+#define FOR_EACH_INDEXED_ABSTRACT_HEAP(macro) \
+ macro(JSRopeString_fibers, JSRopeString::offsetOfFibers(), sizeof(WriteBarrier<JSString>)) \
+ 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(singleCharacterStrings, 0, sizeof(JSString*)) \
+ 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(LContext);
+ ~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) AbstractField name;
+ FOR_EACH_ABSTRACT_FIELD(ABSTRACT_FIELD_DECLARATION)
+#undef ABSTRACT_FIELD_DECLARATION
+
+ AbstractField& 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;
+ }
+ }
+
+private:
+ friend class AbstractHeap;
+
+ LContext m_context;
+ unsigned m_tbaaKind;
+};
+
+} } // namespace JSC::FTL
+
+#endif // ENABLE(FTL_JIT)
+
+#endif // FTLAbstractHeapRepository_h
+
projects / apple / javascriptcore.git / blobdiff