1/*
2 * Copyright (C) 2016 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(B3_JIT)
29
30#include "B3Origin.h"
31#include "MacroAssembler.h"
32#include <wtf/Vector.h>
33
34namespace JSC { namespace B3 {
35
36class PCToOriginMap {
37 WTF_MAKE_NONCOPYABLE(PCToOriginMap);
38public:
39 PCToOriginMap()
40 { }
41
42 PCToOriginMap(PCToOriginMap&& other)
43 : m_ranges(WTFMove(other.m_ranges))
44 { }
45
46 struct OriginRange {
47 MacroAssembler::Label label;
48 Origin origin;
49 };
50
51 void appendItem(MacroAssembler::Label label, Origin origin)
52 {
53 if (m_ranges.size()) {
54 if (m_ranges.last().label == label)
55 return;
56 }
57
58 m_ranges.append(OriginRange{label, origin});
59 }
60
61 const Vector<OriginRange>& ranges() const { return m_ranges; }
62
63private:
64 Vector<OriginRange> m_ranges;
65};
66
67} } // namespace JSC::B3
68
69#endif // ENABLE(B3_JIT)
70