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