dfg/DFGNodeFlags.cpp

   1 /*
   2  * Copyright (C) 2012, 2013, 2014 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 "DFGNodeFlags.h"
  28
  29 #if ENABLE(DFG_JIT)
  30
  31 #include "JSCInlines.h"
  32 #include <wtf/CommaPrinter.h>
  33 #include <wtf/StringPrintStream.h>
  34
  35 namespace JSC { namespace DFG {
  36
  37 void dumpNodeFlags(PrintStream& actualOut, NodeFlags flags)
  38 {
  39     StringPrintStream out;
  40     CommaPrinter comma("|");
  41
  42     if (flags & NodeResultMask) {
  43         switch (flags & NodeResultMask) {
  44         case NodeResultJS:
  45             out.print(comma, "JS");
  46             break;
  47         case NodeResultNumber:
  48             out.print(comma, "Number");
  49             break;
  50         case NodeResultDouble:
  51             out.print(comma, "Double");
  52             break;
  53         case NodeResultInt32:
  54             out.print(comma, "Int32");
  55             break;
  56         case NodeResultInt52:
  57             out.print(comma, "Int52");
  58             break;
  59         case NodeResultBoolean:
  60             out.print(comma, "Boolean");
  61             break;
  62         case NodeResultStorage:
  63             out.print(comma, "Storage");
  64             break;
  65         default:
  66             RELEASE_ASSERT_NOT_REACHED();
  67             break;
  68         }
  69     }
  70
  71     if (flags & NodeMustGenerate)
  72         out.print(comma, "MustGen");
  73
  74     if (flags & NodeHasVarArgs)
  75         out.print(comma, "VarArgs");
  76
  77     if (flags & NodeResultMask) {
  78         if (!(flags & NodeBytecodeUsesAsNumber) && !(flags & NodeBytecodeNeedsNegZero))
  79             out.print(comma, "PureInt");
  80         else if (!(flags & NodeBytecodeUsesAsNumber))
  81             out.print(comma, "PureInt(w/ neg zero)");
  82         else if (!(flags & NodeBytecodeNeedsNegZero))
  83             out.print(comma, "PureNum");
  84         if (flags & NodeBytecodeUsesAsOther)
  85             out.print(comma, "UseAsOther");
  86     }
  87
  88     if (flags & NodeMayOverflowInBaseline)
  89         out.print(comma, "MayOverflowInBaseline");
  90
  91     if (flags & NodeMayOverflowInDFG)
  92         out.print(comma, "MayOverflowInDFG");
  93
  94     if (flags & NodeMayNegZeroInBaseline)
  95         out.print(comma, "MayNegZeroInBaseline");
  96
  97     if (flags & NodeMayNegZeroInDFG)
  98         out.print(comma, "MayNegZeroInDFG");
  99
 100     if (flags & NodeBytecodeUsesAsInt)
 101         out.print(comma, "UseAsInt");
 102
 103     if (flags & NodeBytecodeUsesAsArrayIndex)
 104         out.print(comma, "ReallyWantsInt");
 105
 106     if (flags & NodeIsFlushed)
 107         out.print(comma, "IsFlushed");
 108
 109     CString string = out.toCString();
 110     if (!string.length())
 111         actualOut.print("<empty>");
 112     else
 113         actualOut.print(string);
 114 }
 115
 116 } } // namespace JSC::DFG
 117
 118 #endif // ENABLE(DFG_JIT)
 119