1/* 2 * Copyright (C) 2011, 2012 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#if ENABLE(DFG_JIT) 30 31#include "DFGCommon.h" 32#include "DFGGraph.h" 33 34namespace JSC { namespace DFG { 35 36class Phase { 37public: 38 Phase(Graph& graph, const char* name) 39 : m_graph(graph) 40 , m_name(name) 41 { 42 beginPhase(); 43 } 44 45 ~Phase() 46 { 47 endPhase(); 48 } 49 50 const char* name() const { return m_name; } 51 52 Graph& graph() { return m_graph; } 53 54 // Each phase must have a run() method. 55 56protected: 57 // Things you need to have a DFG compiler phase. 58 Graph& m_graph; 59 60 VM& vm() { return m_graph.m_vm; } 61 CodeBlock* codeBlock() { return m_graph.m_codeBlock; } 62 CodeBlock* profiledBlock() { return m_graph.m_profiledBlock; } 63 64 const char* m_name; 65 66private: 67 // Call these hooks when starting and finishing. 68 void beginPhase(); 69 void endPhase(); 70}; 71 72template<typename PhaseType> 73bool runAndLog(PhaseType& phase) 74{ 75 bool result = phase.run(); 76 if (result && logCompilationChanges(phase.graph().m_plan.mode)) 77 dataLogF("Phase %s changed the IR.\n", phase.name()); 78 return result; 79} 80 81template<typename PhaseType> 82bool runPhase(Graph& graph) 83{ 84 PhaseType phase(graph); 85 return runAndLog(phase); 86} 87 88} } // namespace JSC::DFG 89 90#endif // ENABLE(DFG_JIT) 91 92#endif // DFGPhase_h 93 94