dfg/DFGToFTLForOSREntryDeferredCompilationCallback.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 "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
  36 namespace JSC { namespace DFG {
  37
  38 ToFTLForOSREntryDeferredCompilationCallback::ToFTLForOSREntryDeferredCompilationCallback(
  39     PassRefPtr<CodeBlock> dfgCodeBlock)
  40     : m_dfgCodeBlock(dfgCodeBlock)
  41 {
  42 }
  43
  44 ToFTLForOSREntryDeferredCompilationCallback::~ToFTLForOSREntryDeferredCompilationCallback()
  45 {
  46 }
  47
  48 PassRefPtr<ToFTLForOSREntryDeferredCompilationCallback>
  49 ToFTLForOSREntryDeferredCompilationCallback::create(
  50     PassRefPtr<CodeBlock> dfgCodeBlock)
  51 {
  52     return adoptRef(new ToFTLForOSREntryDeferredCompilationCallback(dfgCodeBlock));
  53 }
  54
  55 void 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
  68 void 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)