mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-26 21:50:53 +00:00
115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
/*
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* Copyright (C) 2018 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(JIT)
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#include "MacroAssembler.h"
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#include <wtf/Vector.h>
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#include <wtf/text/CString.h>
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namespace JSC {
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class LinkBuffer;
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namespace Yarr {
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class YarrCodeBlock;
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class YarrJITInfo {
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public:
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virtual ~YarrJITInfo() { };
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virtual const char* variant() = 0;
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virtual unsigned opCount() = 0;
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virtual void dumpPatternString(PrintStream&) = 0;
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virtual int dumpFor(PrintStream&, unsigned) = 0;
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};
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class YarrDisassembler {
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WTF_MAKE_FAST_ALLOCATED;
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public:
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YarrDisassembler(YarrJITInfo*);
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~YarrDisassembler();
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void setStartOfCode(MacroAssembler::Label label) { m_startOfCode = label; }
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void setForGenerate(unsigned opIndex, MacroAssembler::Label label)
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{
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m_labelForGenerateYarrOp[opIndex] = label;
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}
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void setForBacktrack(unsigned opIndex, MacroAssembler::Label label)
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{
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m_labelForBacktrackYarrOp[opIndex] = label;
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}
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void setEndOfGenerate(MacroAssembler::Label label) { m_endOfGenerate = label; }
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void setEndOfBacktrack(MacroAssembler::Label label) { m_endOfBacktrack = label; }
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void setEndOfCode(MacroAssembler::Label label) { m_endOfCode = label; }
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void dump(LinkBuffer&);
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void dump(PrintStream&, LinkBuffer&);
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private:
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enum class VectorOrder {
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IterateForward,
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IterateReverse
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};
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void dumpHeader(PrintStream&, LinkBuffer&);
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MacroAssembler::Label firstSlowLabel();
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struct DumpedOp {
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unsigned index;
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CString disassembly;
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};
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const char* indentString(unsigned);
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const char* indentString()
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{
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return indentString(m_indentLevel);
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}
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Vector<DumpedOp> dumpVectorForInstructions(LinkBuffer&, Vector<MacroAssembler::Label>& labels, MacroAssembler::Label endLabel, YarrDisassembler::VectorOrder vectorOrder = VectorOrder::IterateForward);
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void dumpForInstructions(PrintStream&, LinkBuffer&, Vector<MacroAssembler::Label>& labels, MacroAssembler::Label endLabel, YarrDisassembler::VectorOrder vectorOrder = VectorOrder::IterateForward);
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void dumpDisassembly(PrintStream&, const char* prefix, LinkBuffer&, MacroAssembler::Label from, MacroAssembler::Label to);
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YarrJITInfo* m_jitInfo;
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MacroAssembler::Label m_startOfCode;
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Vector<MacroAssembler::Label> m_labelForGenerateYarrOp;
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Vector<MacroAssembler::Label> m_labelForBacktrackYarrOp;
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MacroAssembler::Label m_endOfGenerate;
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MacroAssembler::Label m_endOfBacktrack;
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MacroAssembler::Label m_endOfCode;
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unsigned m_indentLevel { 0 };
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};
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}} // namespace Yarr namespace JSC
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#endif // ENABLE(JIT)
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