1/*
2 * Copyright (C) 2013 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 FTLExitArgumentForOperand_h
27#define FTLExitArgumentForOperand_h
28
29#if ENABLE(FTL_JIT)
30
31#include "FTLExitArgument.h"
32#include "VirtualRegister.h"
33
34namespace JSC { namespace FTL {
35
36class ExitArgumentForOperand {
37public:
38    ExitArgumentForOperand()
39        : m_operand(VirtualRegister())
40    {
41    }
42
43    ExitArgumentForOperand(ExitArgument exitArgument, VirtualRegister operand)
44        : m_exitArgument(exitArgument)
45        , m_operand(operand)
46    {
47    }
48
49    bool operator!() const { return !m_exitArgument; }
50
51    const ExitArgument& exitArgument() const { return m_exitArgument; }
52    VirtualRegister operand() const { return m_operand; }
53
54    void dump(PrintStream&) const;
55
56private:
57    ExitArgument m_exitArgument;
58    VirtualRegister m_operand;
59};
60
61inline bool lesserArgumentIndex(
62    const ExitArgumentForOperand& a, const ExitArgumentForOperand& b)
63{
64    return a.exitArgument().argument() < b.exitArgument().argument();
65}
66
67} } // namespace JSC::FTL
68
69#endif // ENABLE(FTL_JIT)
70
71#endif // FTLExitArgumentForOperand_h
72
73