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/*
* Copyright (C) 2013-2023 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.
*/
#pragma once
#if ENABLE(FTL_JIT)
#include "DFGCommonData.h"
#include "FTLLazySlowPath.h"
#include "FTLOSRExit.h"
#include "JITCode.h"
#include "JITOpaqueByproducts.h"
namespace JSC {
class TrackedReferences;
namespace FTL {
class JITCode : public JSC::JITCode {
public:
JITCode();
~JITCode() override;
CodePtr<JSEntryPtrTag> addressForCall(ArityCheckMode) override;
void* executableAddressAtOffset(size_t offset) override;
void* dataAddressAtOffset(size_t offset) override;
unsigned offsetOf(void* pointerIntoCode) override;
size_t size() override;
void setSize(size_t size) { m_size = size; }
bool contains(void*) override;
void initializeB3Code(CodeRef<JSEntryPtrTag>);
void initializeB3Byproducts(std::unique_ptr<OpaqueByproducts>);
void initializeAddressForCall(CodePtr<JSEntryPtrTag>);
void initializeAddressForArityCheck(CodePtr<JSEntryPtrTag>);
void validateReferences(const TrackedReferences&) override;
RegisterSetBuilder liveRegistersToPreserveAtExceptionHandlingCallSite(CodeBlock*, CallSiteIndex) override;
std::optional<CodeOrigin> findPC(CodeBlock*, void* pc) override;
CodeRef<JSEntryPtrTag> b3Code() const { return m_b3Code; }
JITCode* ftl() override;
DFG::CommonData* dfgCommon() override;
const DFG::CommonData* dfgCommon() const override;
static constexpr ptrdiff_t commonDataOffset() { return OBJECT_OFFSETOF(JITCode, common); }
void shrinkToFit() override;
bool isUnlinked() const { return common.isUnlinked(); }
PCToCodeOriginMap* pcToCodeOriginMap() override { return common.m_pcToCodeOriginMap.get(); }
const RegisterAtOffsetList* calleeSaveRegisters() const { return &m_calleeSaveRegisters; }
unsigned numberOfCompiledDFGNodes() const { return m_numberOfCompiledDFGNodes; }
void setNumberOfCompiledDFGNodes(unsigned numberOfCompiledDFGNodes)
{
m_numberOfCompiledDFGNodes = numberOfCompiledDFGNodes;
}
DFG::CommonData common;
Vector<OSRExit> m_osrExit;
RegisterAtOffsetList m_calleeSaveRegisters;
SegmentedVector<OSRExitDescriptor, 8> osrExitDescriptors;
Vector<std::unique_ptr<LazySlowPath>> lazySlowPaths;
private:
CodeRef<JSEntryPtrTag> m_b3Code;
std::unique_ptr<OpaqueByproducts> m_b3Byproducts;
CodePtr<JSEntryPtrTag> m_addressForArityCheck;
size_t m_size { 1000 };
unsigned m_numberOfCompiledDFGNodes { 0 };
};
} } // namespace JSC::FTL
#endif // ENABLE(FTL_JIT)
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