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 FTLValueRange_h 27#define FTLValueRange_h 28 29#if ENABLE(FTL_JIT) 30 31#include "FTLAbbreviatedTypes.h" 32 33namespace JSC { namespace FTL { 34 35class ValueRange { 36public: 37 ValueRange() 38 : m_begin(0) 39 , m_end(0) 40 , m_rangeMetadata(0) 41 { 42 } 43 44 ValueRange(LValue begin, LValue end) 45 : m_begin(begin) 46 , m_end(end) 47 , m_rangeMetadata(0) 48 { 49 } 50 51 LValue begin() const { return m_begin; } 52 LValue end() const { return m_end; } 53 54 void decorateInstruction(LContext, LValue loadInstruction, unsigned rangeKind) const; 55 56private: 57 LValue m_begin; 58 LValue m_end; 59 mutable LValue m_rangeMetadata; 60}; 61 62} } // namespace JSC::FTL 63 64#endif // ENABLE(FTL_JIT) 65 66#endif // FTLValueRange_h 67 68