1/*
2 * Copyright (C) 2011 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 LLIntData_h
27#define LLIntData_h
28
29#include "JSCJSValue.h"
30#include "Opcode.h"
31
32namespace JSC {
33
34class VM;
35struct Instruction;
36
37#if !ENABLE(JIT)
38typedef OpcodeID LLIntCode;
39#else
40typedef void (*LLIntCode)();
41#endif
42
43namespace LLInt {
44
45class Data {
46public:
47 static void performAssertions(VM&);
48
49private:
50 static Instruction* s_exceptionInstructions;
51 static Opcode s_opcodeMap[numOpcodeIDs];
52
53 friend void initialize();
54
55 friend Instruction* exceptionInstructions();
56 friend Opcode* opcodeMap();
57 friend Opcode getOpcode(OpcodeID);
58 friend void* getCodePtr(OpcodeID);
59};
60
61void initialize();
62
63inline Instruction* exceptionInstructions()
64{
65 return Data::s_exceptionInstructions;
66}
67
68inline Opcode* opcodeMap()
69{
70 return Data::s_opcodeMap;
71}
72
73inline Opcode getOpcode(OpcodeID id)
74{
75#if ENABLE(COMPUTED_GOTO_OPCODES)
76 return Data::s_opcodeMap[id];
77#else
78 return static_cast<Opcode>(id);
79#endif
80}
81
82ALWAYS_INLINE void* getCodePtr(OpcodeID id)
83{
84 return reinterpret_cast<void*>(getOpcode(id));
85}
86
87#if ENABLE(JIT)
88ALWAYS_INLINE LLIntCode getCodeFunctionPtr(OpcodeID codeId)
89{
90 return reinterpret_cast<LLIntCode>(getCodePtr(codeId));
91}
92#endif
93
94ALWAYS_INLINE void* getCodePtr(JSC::EncodedJSValue glueHelper())
95{
96 return bitwise_cast<void*>(glueHelper);
97}
98
99
100} } // namespace JSC::LLInt
101
102#endif // LLIntData_h
103
104