1/*
2 * Copyright (C) 2013-2018 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 "DFGJITFinalizer.h"
28
29#if ENABLE(DFG_JIT)
30
31#include "CodeBlock.h"
32#include "CodeBlockWithJITType.h"
33#include "DFGCommon.h"
34#include "DFGPlan.h"
35#include "JSCInlines.h"
36#include "ProfilerDatabase.h"
37
38namespace JSC { namespace DFG {
39
40JITFinalizer::JITFinalizer(Plan& plan, Ref<JITCode>&& jitCode, std::unique_ptr<LinkBuffer> linkBuffer, MacroAssemblerCodePtr<JSEntryPtrTag> withArityCheck)
41 : Finalizer(plan)
42 , m_jitCode(WTFMove(jitCode))
43 , m_linkBuffer(WTFMove(linkBuffer))
44 , m_withArityCheck(withArityCheck)
45{
46}
47
48JITFinalizer::~JITFinalizer()
49{
50}
51
52size_t JITFinalizer::codeSize()
53{
54 return m_linkBuffer->size();
55}
56
57bool JITFinalizer::finalize()
58{
59 MacroAssemblerCodeRef<JSEntryPtrTag> codeRef = FINALIZE_DFG_CODE(*m_linkBuffer, JSEntryPtrTag, "DFG JIT code for %s", toCString(CodeBlockWithJITType(m_plan.codeBlock(), JITType::DFGJIT)).data());
60 m_jitCode->initializeCodeRefForDFG(codeRef, codeRef.code());
61
62 m_plan.codeBlock()->setJITCode(m_jitCode.copyRef());
63
64 finalizeCommon();
65
66 return true;
67}
68
69bool JITFinalizer::finalizeFunction()
70{
71 RELEASE_ASSERT(!m_withArityCheck.isEmptyValue());
72 m_jitCode->initializeCodeRefForDFG(
73 FINALIZE_DFG_CODE(*m_linkBuffer, JSEntryPtrTag, "DFG JIT code for %s", toCString(CodeBlockWithJITType(m_plan.codeBlock(), JITType::DFGJIT)).data()),
74 m_withArityCheck);
75 m_plan.codeBlock()->setJITCode(m_jitCode.copyRef());
76
77 finalizeCommon();
78
79 return true;
80}
81
82void JITFinalizer::finalizeCommon()
83{
84 // Some JIT finalizers may have added more constants. Shrink-to-fit those things now.
85 m_plan.codeBlock()->constants().shrinkToFit();
86 m_plan.codeBlock()->constantsSourceCodeRepresentation().shrinkToFit();
87
88#if ENABLE(FTL_JIT)
89 m_jitCode->optimizeAfterWarmUp(m_plan.codeBlock());
90#endif // ENABLE(FTL_JIT)
91
92 if (UNLIKELY(m_plan.compilation()))
93 m_plan.vm()->m_perBytecodeProfiler->addCompilation(m_plan.codeBlock(), *m_plan.compilation());
94
95 if (!m_plan.willTryToTierUp())
96 m_plan.codeBlock()->baselineVersion()->m_didFailFTLCompilation = true;
97}
98
99} } // namespace JSC::DFG
100
101#endif // ENABLE(DFG_JIT)
102
103