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/*
* Copyright (C) 2013-2021 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 "B3Procedure.h"
#include "DFGCommon.h"
#include "DFGGraph.h"
#include "DFGJumpReplacement.h"
#include "FTLAbbreviatedTypes.h"
#include "FTLJITCode.h"
#include "FTLJITFinalizer.h"
#include <wtf/Box.h>
#include <wtf/Noncopyable.h>
namespace JSC {
namespace B3 {
class PatchpointValue;
namespace Air {
class StackSlot;
} // namespace Air
} // namespace B3
namespace FTL {
class PatchpointExceptionHandle;
inline bool verboseCompilationEnabled()
{
return DFG::verboseCompilationEnabled(JITCompilationMode::FTL);
}
inline bool shouldDumpDisassembly()
{
return DFG::shouldDumpDisassembly(JITCompilationMode::FTL);
}
class State {
WTF_MAKE_NONCOPYABLE(State);
public:
State(DFG::Graph& graph);
~State();
VM& vm() { return graph.m_vm; }
void dumpDisassembly(PrintStream&, LinkBuffer&, const ScopedLambda<void(DFG::Node*)>& perDFGNodeCallback = scopedLambda<void(DFG::Node*)>([] (DFG::Node*) { }));
StructureStubInfo* addStructureStubInfo();
OptimizingCallLinkInfo* addCallLinkInfo(CodeOrigin);
// None of these things is owned by State. It is the responsibility of
// FTL phases to properly manage the lifecycle of the module and function.
DFG::Graph& graph;
std::unique_ptr<B3::Procedure> proc;
bool allocationFailed { false }; // Throw out the compilation once B3 returns.
RefPtr<FTL::JITCode> jitCode;
JITFinalizer* finalizer;
std::unique_ptr<LinkBuffer> b3CodeLinkBuffer;
// Top-level exception handler. Jump here if you know that you have to genericUnwind() and there
// are no applicable catch blocks anywhere in the Graph.
RefPtr<PatchpointExceptionHandle> defaultExceptionHandle;
Box<CCallHelpers::Label> exceptionHandler { Box<CCallHelpers::Label>::create() };
B3::Air::StackSlot* capturedValue { nullptr };
Vector<DFG::JumpReplacement> jumpReplacements;
};
} } // namespace JSC::FTL
#endif // ENABLE(FTL_JIT)
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