mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
/*
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* Copyright (C) 2012-2017 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(DFG_JIT)
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#include "DFGMinifiedGraph.h"
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#include "DFGVariableEvent.h"
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#include "Operands.h"
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#include "ValueRecovery.h"
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#include <wtf/Vector.h>
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namespace JSC { namespace DFG {
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struct UndefinedOperandSpan {
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unsigned firstIndex;
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int minOffset;
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unsigned numberOfRegisters;
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};
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class VariableEventStream : public Vector<VariableEvent> {
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static constexpr bool verbose = false;
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public:
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void appendAndLog(const VariableEvent& event)
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{
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if (verbose)
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logEvent(event);
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append(event);
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}
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unsigned reconstruct(CodeBlock*, CodeOrigin, MinifiedGraph&, unsigned index, Operands<ValueRecovery>&) const;
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unsigned reconstruct(CodeBlock*, CodeOrigin, MinifiedGraph&, unsigned index, Operands<ValueRecovery>&, Vector<UndefinedOperandSpan>*) const;
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private:
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enum class ReconstructionStyle {
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Combined,
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Separated
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};
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template<ReconstructionStyle style>
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unsigned reconstruct(
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CodeBlock*, CodeOrigin, MinifiedGraph&,
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unsigned index, Operands<ValueRecovery>&, Vector<UndefinedOperandSpan>*) const;
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void logEvent(const VariableEvent&);
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};
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} } // namespace JSC::DFG
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#endif // ENABLE(DFG_JIT)
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