ftl/FTLState.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 "FTLState.h"
  28
  29 #if ENABLE(FTL_JIT)
  30
  31 #include "CodeBlockWithJITType.h"
  32 #include "FTLForOSREntryJITCode.h"
  33 #include "FTLJITCode.h"
  34 #include "FTLJITFinalizer.h"
  35
  36 namespace JSC { namespace FTL {
  37
  38 using namespace DFG;
  39
  40 State::State(Graph& graph)
  41     : graph(graph)
  42     , context(llvm->ContextCreate())
  43     , module(0)
  44     , function(0)
  45     , generatedFunction(0)
  46     , compactUnwind(0)
  47     , compactUnwindSize(0)
  48 {
  49     switch (graph.m_plan.mode) {
  50     case FTLMode: {
  51         jitCode = adoptRef(new JITCode());
  52         break;
  53     }
  54     case FTLForOSREntryMode: {
  55         RefPtr<ForOSREntryJITCode> code = adoptRef(new ForOSREntryJITCode());
  56         code->initializeEntryBuffer(graph.m_vm, graph.m_profiledBlock->m_numCalleeRegisters);
  57         code->setBytecodeIndex(graph.m_plan.osrEntryBytecodeIndex);
  58         jitCode = code;
  59         break;
  60     }
  61     default:
  62         RELEASE_ASSERT_NOT_REACHED();
  63         break;
  64     }
  65
  66     finalizer = new JITFinalizer(graph.m_plan);
  67     graph.m_plan.finalizer = adoptPtr(finalizer);
  68 }
  69
  70 State::~State()
  71 {
  72     llvm->ContextDispose(context);
  73 }
  74
  75 void State::dumpState(const char* when)
  76 {
  77     dataLog("LLVM IR for ", CodeBlockWithJITType(graph.m_codeBlock, FTL::JITCode::FTLJIT), " ", when, ":\n");
  78     dumpModule(module);
  79 }
  80
  81 } } // namespace JSC::FTL
  82
  83 #endif // ENABLE(FTL_JIT)
  84