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 Ref<ToFTLForOSREntryDeferredCompilationCallback>ToFTLForOSREntryDeferredCompilationCallback::create(
  49     PassRefPtr<CodeBlock> dfgCodeBlock)
  50 {
  51     return adoptRef(*new ToFTLForOSREntryDeferredCompilationCallback(dfgCodeBlock));
  52 }
  53
  54 void ToFTLForOSREntryDeferredCompilationCallback::compilationDidBecomeReadyAsynchronously(
  55     CodeBlock* codeBlock)
  56 {
  57     if (Options::verboseOSR()) {
  58         dataLog(
  59             "Optimizing compilation of ", *codeBlock, " (for ", *m_dfgCodeBlock,
  60             ") did become ready.\n");
  61     }
  62
  63     m_dfgCodeBlock->jitCode()->dfg()->forceOptimizationSlowPathConcurrently(
  64         m_dfgCodeBlock.get());
  65 }
  66
  67 void ToFTLForOSREntryDeferredCompilationCallback::compilationDidComplete(
  68     CodeBlock* codeBlock, CompilationResult result)
  69 {
  70     if (Options::verboseOSR()) {
  71         dataLog(
  72             "Optimizing compilation of ", *codeBlock, " (for ", *m_dfgCodeBlock,
  73             ") result: ", result, "\n");
  74     }
  75
  76     JITCode* jitCode = m_dfgCodeBlock->jitCode()->dfg();
  77
  78     switch (result) {
  79     case CompilationSuccessful:
  80         jitCode->osrEntryBlock = codeBlock;
  81         break;
  82     case CompilationFailed:
  83         jitCode->osrEntryRetry = 0;
  84         jitCode->abandonOSREntry = true;
  85         break;
  86     case CompilationDeferred:
  87         RELEASE_ASSERT_NOT_REACHED();
  88     case CompilationInvalidated:
  89         jitCode->osrEntryRetry = 0;
  90         break;
  91     }
  92
  93     DeferredCompilationCallback::compilationDidComplete(codeBlock, result);
  94 }
  95
  96 } } // JSC::DFG
  97
  98 #endif // ENABLE(FTL_JIT)