1/*
2 * Copyright (C) 2015-2016 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 "B3Const32Value.h"
31#include "B3Const64Value.h"
32
33namespace JSC { namespace B3 {
34
35// Usually you want to use Const32Value or Const64Value directly. But this is useful for writing
36// platform-agnostic code. Note that a ConstPtrValue will behave like either a Const32Value or
37// Const64Value depending on platform.
38
39#if CPU(ADDRESS64)
40typedef Const64Value ConstPtrValueBase;
41#else
42typedef Const32Value ConstPtrValueBase;
43#endif
44
45class ConstPtrValue : public ConstPtrValueBase {
46public:
47 void* value() const
48 {
49 return bitwise_cast<void*>(ConstPtrValueBase::value());
50 }
51
52private:
53 friend class Procedure;
54 friend class Value;
55
56 template<typename T>
57 static Opcode opcodeFromConstructor(Origin, T*) { return ConstPtrValueBase::opcodeFromConstructor(); }
58 template<typename T>
59 ConstPtrValue(Origin origin, T* pointer)
60 : ConstPtrValueBase(origin, bitwise_cast<intptr_t>(pointer))
61 {
62 }
63 template<typename T>
64 static Opcode opcodeFromConstructor(Origin, T) { return ConstPtrValueBase::opcodeFromConstructor(); }
65 template<typename T>
66 ConstPtrValue(Origin origin, T pointer)
67 : ConstPtrValueBase(origin, static_cast<intptr_t>(pointer))
68 {
69 }
70};
71
72} } // namespace JSC::B3
73
74#endif // ENABLE(B3_JIT)
75