1/*
2 * Copyright (C) 2018 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 "ICStatusUtils.h"
28
29#include "CodeBlock.h"
30#include "ExitFlag.h"
31#include "UnlinkedCodeBlock.h"
32
33namespace JSC {
34
35ExitFlag hasBadCacheExitSite(CodeBlock* profiledBlock, unsigned bytecodeIndex)
36{
37#if ENABLE(DFG_JIT)
38 UnlinkedCodeBlock* unlinkedCodeBlock = profiledBlock->unlinkedCodeBlock();
39 ConcurrentJSLocker locker(unlinkedCodeBlock->m_lock);
40 auto exitFlag = [&] (ExitKind exitKind) -> ExitFlag {
41 auto withInlined = [&] (ExitingInlineKind inlineKind) -> ExitFlag {
42 return ExitFlag(unlinkedCodeBlock->hasExitSite(locker, DFG::FrequentExitSite(bytecodeIndex, exitKind, ExitFromAnything, inlineKind)), inlineKind);
43 };
44 return withInlined(ExitFromNotInlined) | withInlined(ExitFromInlined);
45 };
46 return exitFlag(BadCache) | exitFlag(BadConstantCache) | exitFlag(BadType);
47#else
48 UNUSED_PARAM(profiledBlock);
49 UNUSED_PARAM(bytecodeIndex);
50 return ExitFlag();
51#endif
52}
53
54} // namespace JSC
55
56