1/*
2 * Copyright (C) 2013, 2014 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 FTLState_h
27#define FTLState_h
28
29#if ENABLE(FTL_JIT)
30
31#include "DFGCommon.h"
32#include "DFGGraph.h"
33#include "FTLAbbreviations.h"
34#include "FTLGeneratedFunction.h"
35#include "FTLInlineCacheDescriptor.h"
36#include "FTLJITCode.h"
37#include "FTLJITFinalizer.h"
38#include "FTLJSCall.h"
39#include "FTLStackMaps.h"
40#include "FTLState.h"
41#include <wtf/Noncopyable.h>
42
43namespace JSC { namespace FTL {
44
45inline bool verboseCompilationEnabled()
46{
47    return DFG::verboseCompilationEnabled(DFG::FTLMode);
48}
49
50inline bool shouldShowDisassembly()
51{
52    return DFG::shouldShowDisassembly(DFG::FTLMode);
53}
54
55class State {
56    WTF_MAKE_NONCOPYABLE(State);
57
58public:
59    State(DFG::Graph& graph);
60    ~State();
61
62    // None of these things is owned by State. It is the responsibility of
63    // FTL phases to properly manage the lifecycle of the module and function.
64    DFG::Graph& graph;
65    LContext context;
66    LModule module;
67    LValue function;
68    RefPtr<JITCode> jitCode;
69    GeneratedFunction generatedFunction;
70    JITFinalizer* finalizer;
71    unsigned handleStackOverflowExceptionStackmapID;
72    unsigned handleExceptionStackmapID;
73    unsigned capturedStackmapID;
74    SegmentedVector<GetByIdDescriptor> getByIds;
75    SegmentedVector<PutByIdDescriptor> putByIds;
76    Vector<JSCall> jsCalls;
77    Vector<CString> codeSectionNames;
78    Vector<CString> dataSectionNames;
79    void* compactUnwind;
80    size_t compactUnwindSize;
81    RefPtr<DataSection> stackmapsSection;
82
83    void dumpState(const char* when);
84};
85
86} } // namespace JSC::FTL
87
88#endif // ENABLE(FTL_JIT)
89
90#endif // FTLState_h
91
92