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 "DFGToFTLDeferredCompilationCallback.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
38ToFTLDeferredCompilationCallback::ToFTLDeferredCompilationCallback(
39    PassRefPtr<CodeBlock> dfgCodeBlock)
40    : m_dfgCodeBlock(dfgCodeBlock)
41{
42}
43
44ToFTLDeferredCompilationCallback::~ToFTLDeferredCompilationCallback() { }
45
46PassRefPtr<ToFTLDeferredCompilationCallback> ToFTLDeferredCompilationCallback::create(
47    PassRefPtr<CodeBlock> dfgCodeBlock)
48{
49    return adoptRef(new ToFTLDeferredCompilationCallback(dfgCodeBlock));
50}
51
52void ToFTLDeferredCompilationCallback::compilationDidBecomeReadyAsynchronously(
53    CodeBlock* codeBlock)
54{
55    if (Options::verboseOSR()) {
56        dataLog(
57            "Optimizing compilation of ", *codeBlock, " (for ", *m_dfgCodeBlock,
58            ") did become ready.\n");
59    }
60
61    m_dfgCodeBlock->jitCode()->dfg()->forceOptimizationSlowPathConcurrently(
62        m_dfgCodeBlock.get());
63}
64
65void ToFTLDeferredCompilationCallback::compilationDidComplete(
66    CodeBlock* codeBlock, CompilationResult result)
67{
68    if (Options::verboseOSR()) {
69        dataLog(
70            "Optimizing compilation of ", *codeBlock, " (for ", *m_dfgCodeBlock,
71            ") result: ", result, "\n");
72    }
73
74    if (m_dfgCodeBlock->replacement() != m_dfgCodeBlock) {
75        if (Options::verboseOSR()) {
76            dataLog(
77                "Dropping FTL code block ", *codeBlock, " on the floor because the "
78                "DFG code block ", *m_dfgCodeBlock, " was jettisoned.\n");
79        }
80        return;
81    }
82
83    if (result == CompilationSuccessful)
84        codeBlock->install();
85
86    m_dfgCodeBlock->jitCode()->dfg()->setOptimizationThresholdBasedOnCompilationResult(
87        m_dfgCodeBlock.get(), result);
88
89    DeferredCompilationCallback::compilationDidComplete(codeBlock, result);
90}
91
92} } // JSC::DFG
93
94#endif // ENABLE(FTL_JIT)
95