dfg/DFGPhase.h

   1 /*
   2  * Copyright (C) 2011 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 #ifndef DFGPhase_h
  27 #define DFGPhase_h
  28
  29 #include <wtf/Platform.h>
  30
  31 #if ENABLE(DFG_JIT)
  32
  33 #include "DFGCommon.h"
  34 #include "DFGGraph.h"
  35
  36 namespace JSC { namespace DFG {
  37
  38 class Phase {
  39 public:
  40     Phase(Graph& graph, const char* name)
  41         : m_graph(graph)
  42         , m_name(name)
  43     {
  44         beginPhase();
  45     }
  46
  47     ~Phase()
  48     {
  49         endPhase();
  50     }
  51
  52     // Each phase must have a run() method.
  53
  54 protected:
  55     // Things you need to have a DFG compiler phase.
  56     Graph& m_graph;
  57
  58     JSGlobalData& globalData() { return m_graph.m_globalData; }
  59     CodeBlock* codeBlock() { return m_graph.m_codeBlock; }
  60     CodeBlock* profiledBlock() { return m_graph.m_profiledBlock; }
  61
  62     const char* m_name;
  63
  64 private:
  65     // Call these hooks when starting and finishing.
  66 #if DFG_ENABLE(DEBUG_PROPAGATION_VERBOSE)
  67     void beginPhase();
  68     void endPhase();
  69 #else // DFG_ENABLE(DEBUG_PROPAGATION_VERBOSE)
  70     void beginPhase() { }
  71     void endPhase() { }
  72 #endif // DFG_ENABLE(DEBUG_PROPAGATION_VERBOSE)
  73 };
  74
  75 template<typename PhaseType>
  76 void runPhase(Graph& graph)
  77 {
  78     PhaseType phase(graph);
  79     phase.run();
  80 }
  81
  82 } } // namespace JSC::DFG
  83
  84 #endif // ENABLE(DFG_JIT)
  85
  86 #endif // DFGPhase_h
  87