1/*
2 * Copyright (C) 2013 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#include "config.h"
27#include "DFGToFTLForOSREntryDeferredCompilationCallback.h"
28
29#if ENABLE(FTL_JIT)
30
31#include "CodeBlock.h"
32#include "DFGJITCode.h"
33#include "Executable.h"
34#include "JSCInlines.h"
35
36namespace JSC { namespace DFG {
37
38ToFTLForOSREntryDeferredCompilationCallback::ToFTLForOSREntryDeferredCompilationCallback(
39    PassRefPtr<CodeBlock> dfgCodeBlock)
40    : m_dfgCodeBlock(dfgCodeBlock)
41{
42}
43
44ToFTLForOSREntryDeferredCompilationCallback::~ToFTLForOSREntryDeferredCompilationCallback()
45{
46}
47
48PassRefPtr<ToFTLForOSREntryDeferredCompilationCallback>
49ToFTLForOSREntryDeferredCompilationCallback::create(
50    PassRefPtr<CodeBlock> dfgCodeBlock)
51{
52    return adoptRef(new ToFTLForOSREntryDeferredCompilationCallback(dfgCodeBlock));
53}
54
55void ToFTLForOSREntryDeferredCompilationCallback::compilationDidBecomeReadyAsynchronously(
56    CodeBlock* codeBlock)
57{
58    if (Options::verboseOSR()) {
59        dataLog(
60            "Optimizing compilation of ", *codeBlock, " (for ", *m_dfgCodeBlock,
61            ") did become ready.\n");
62    }
63
64    m_dfgCodeBlock->jitCode()->dfg()->forceOptimizationSlowPathConcurrently(
65        m_dfgCodeBlock.get());
66}
67
68void ToFTLForOSREntryDeferredCompilationCallback::compilationDidComplete(
69    CodeBlock* codeBlock, CompilationResult result)
70{
71    if (Options::verboseOSR()) {
72        dataLog(
73            "Optimizing compilation of ", *codeBlock, " (for ", *m_dfgCodeBlock,
74            ") result: ", result, "\n");
75    }
76
77    JITCode* jitCode = m_dfgCodeBlock->jitCode()->dfg();
78
79    switch (result) {
80    case CompilationSuccessful:
81        jitCode->osrEntryBlock = codeBlock;
82        break;
83    case CompilationFailed:
84        jitCode->osrEntryRetry = 0;
85        jitCode->abandonOSREntry = true;
86        break;
87    case CompilationDeferred:
88        RELEASE_ASSERT_NOT_REACHED();
89    case CompilationInvalidated:
90        jitCode->osrEntryRetry = 0;
91        break;
92    }
93
94    DeferredCompilationCallback::compilationDidComplete(codeBlock, result);
95}
96
97} } // JSC::DFG
98
99#endif // ENABLE(FTL_JIT)
100