1/*
2 * Copyright (C) 2017 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(DFG_JIT)
29
30#include "ArrayProfile.h"
31#include "DFGRegisteredStructure.h"
32#include "StructureSet.h"
33#include <wtf/TinyPtrSet.h>
34
35namespace JSC {
36
37class TrackedReferences;
38
39namespace DFG {
40
41struct AbstractValue;
42class StructureAbstractValue;
43
44class RegisteredStructureSet : public TinyPtrSet<RegisteredStructure> {
45public:
46
47 RegisteredStructureSet()
48 { }
49
50 RegisteredStructureSet(RegisteredStructure structure)
51 : TinyPtrSet(structure)
52 {
53 }
54
55 RegisteredStructure onlyStructure() const
56 {
57 return onlyEntry();
58 }
59
60 StructureSet toStructureSet() const
61 {
62 StructureSet result;
63 forEach([&] (RegisteredStructure structure) { result.add(structure.get()); });
64 return result;
65 }
66
67 void filter(const DFG::StructureAbstractValue&);
68 void filter(SpeculatedType);
69 void filterArrayModes(ArrayModes);
70 void filter(const DFG::AbstractValue&);
71
72 SpeculatedType speculationFromStructures() const;
73 ArrayModes arrayModesFromStructures() const;
74
75 void validateReferences(const TrackedReferences&) const;
76};
77
78} } // namespace JSC::DFG
79
80#endif // ENABLE(DFG_JIT)
81