1/* 2 * Copyright (C) 2014 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef FTLDWARFRegister_h 27#define FTLDWARFRegister_h 28 29#if ENABLE(FTL_JIT) 30 31#include "Reg.h" 32#include <wtf/PrintStream.h> 33 34namespace JSC { namespace FTL { 35 36class DWARFRegister { 37public: 38 DWARFRegister() 39 : m_dwarfRegNum(-1) 40 { 41 } 42 43 explicit DWARFRegister(int16_t dwarfRegNum) 44 : m_dwarfRegNum(dwarfRegNum) 45 { 46 } 47 48 int16_t dwarfRegNum() const { return m_dwarfRegNum; } 49 50 Reg reg() const; // This may return Reg() if it can't parse the Dwarf register number. 51 52 void dump(PrintStream&) const; 53 54private: 55 int16_t m_dwarfRegNum; 56}; 57 58} } // namespace JSC::FTL 59 60#endif // ENABLE(FTL_JIT) 61 62#endif // FTLDWARFRegister_h 63 64