dfg/DFGJITFinalizer.cpp

   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 "DFGJITFinalizer.h"
  28
  29 #if ENABLE(DFG_JIT)
  30
  31 #include "CodeBlock.h"
  32 #include "DFGCommon.h"
  33 #include "DFGPlan.h"
  34 #include "JSCInlines.h"
  35 #include "ProfilerDatabase.h"
  36
  37 namespace JSC { namespace DFG {
  38
  39 JITFinalizer::JITFinalizer(Plan& plan, PassRefPtr<JITCode> jitCode, PassOwnPtr<LinkBuffer> linkBuffer, MacroAssemblerCodePtr withArityCheck)
  40     : Finalizer(plan)
  41     , m_jitCode(jitCode)
  42     , m_linkBuffer(linkBuffer)
  43     , m_withArityCheck(withArityCheck)
  44 {
  45 }
  46
  47 JITFinalizer::~JITFinalizer()
  48 {
  49 }
  50
  51 size_t JITFinalizer::codeSize()
  52 {
  53     return m_linkBuffer->size();
  54 }
  55
  56 bool JITFinalizer::finalize()
  57 {
  58     m_jitCode->initializeCodeRef(
  59         m_linkBuffer->finalizeCodeWithoutDisassembly(), MacroAssemblerCodePtr());
  60     m_plan.codeBlock->setJITCode(m_jitCode);
  61
  62     finalizeCommon();
  63
  64     return true;
  65 }
  66
  67 bool JITFinalizer::finalizeFunction()
  68 {
  69     RELEASE_ASSERT(!m_withArityCheck.isEmptyValue());
  70     m_jitCode->initializeCodeRef(
  71         m_linkBuffer->finalizeCodeWithoutDisassembly(), m_withArityCheck);
  72     m_plan.codeBlock->setJITCode(m_jitCode);
  73
  74     finalizeCommon();
  75
  76     return true;
  77 }
  78
  79 void JITFinalizer::finalizeCommon()
  80 {
  81 #if ENABLE(FTL_JIT)
  82     m_jitCode->optimizeAfterWarmUp(m_plan.codeBlock.get());
  83 #endif // ENABLE(FTL_JIT)
  84
  85     if (m_plan.compilation)
  86         m_plan.vm.m_perBytecodeProfiler->addCompilation(m_plan.compilation);
  87
  88     if (!m_plan.willTryToTierUp)
  89         m_plan.codeBlock->baselineVersion()->m_didFailFTLCompilation = true;
  90 }
  91
  92 } } // namespace JSC::DFG
  93
  94 #endif // ENABLE(DFG_JIT)
  95