dfg/DFGDisassembler.h

   1 /*
   2  * Copyright (C) 2012, 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 #ifndef DFGDisassembler_h
  27 #define DFGDisassembler_h
  28
  29 #include <wtf/Platform.h>
  30
  31 #if ENABLE(DFG_JIT)
  32
  33 #include "DFGCommon.h"
  34 #include "LinkBuffer.h"
  35 #include "MacroAssembler.h"
  36 #include <wtf/HashMap.h>
  37 #include <wtf/StringPrintStream.h>
  38 #include <wtf/Vector.h>
  39
  40 namespace JSC { namespace DFG {
  41
  42 class Graph;
  43
  44 class Disassembler {
  45     WTF_MAKE_FAST_ALLOCATED;
  46 public:
  47     Disassembler(Graph&);
  48
  49     void setStartOfCode(MacroAssembler::Label label) { m_startOfCode = label; }
  50     void setForBlock(BlockIndex blockIndex, MacroAssembler::Label label)
  51     {
  52         m_labelForBlockIndex[blockIndex] = label;
  53     }
  54     void setForNode(Node* node, MacroAssembler::Label label)
  55     {
  56         ASSERT(label.isSet());
  57         m_labelForNode.add(node, label);
  58     }
  59     void setEndOfMainPath(MacroAssembler::Label label)
  60     {
  61         m_endOfMainPath = label;
  62     }
  63     void setEndOfCode(MacroAssembler::Label label)
  64     {
  65         m_endOfCode = label;
  66     }
  67
  68     void dump(PrintStream&, LinkBuffer&);
  69     void dump(LinkBuffer&);
  70     void reportToProfiler(Profiler::Compilation*, LinkBuffer&);
  71
  72 private:
  73     void dumpHeader(PrintStream&, LinkBuffer&);
  74
  75     struct DumpedOp {
  76         DumpedOp(CodeOrigin codeOrigin, CString text)
  77             : codeOrigin(codeOrigin)
  78             , text(text)
  79         {
  80         }
  81
  82         CodeOrigin codeOrigin;
  83         CString text;
  84     };
  85     void append(Vector<DumpedOp>&, StringPrintStream&, CodeOrigin&);
  86     Vector<DumpedOp> createDumpList(LinkBuffer&);
  87
  88     void dumpDisassembly(PrintStream&, const char* prefix, LinkBuffer&, MacroAssembler::Label& previousLabel, MacroAssembler::Label currentLabel, Node* context);
  89
  90     Graph& m_graph;
  91     MacroAssembler::Label m_startOfCode;
  92     Vector<MacroAssembler::Label> m_labelForBlockIndex;
  93     HashMap<Node*, MacroAssembler::Label> m_labelForNode;
  94     MacroAssembler::Label m_endOfMainPath;
  95     MacroAssembler::Label m_endOfCode;
  96 };
  97
  98 } } // namespace JSC::DFG
  99
 100 #endif // ENABLE(DFG_JIT)
 101
 102 #endif // DFGDisassembler_h