dfg/DFGNodeFlags.cpp

   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 #include "config.h"
  27 #include "DFGNodeFlags.h"
  28
  29 #if ENABLE(DFG_JIT)
  30
  31 #include <wtf/CommaPrinter.h>
  32
  33 namespace JSC { namespace DFG {
  34
  35 void dumpNodeFlags(PrintStream& out, NodeFlags flags)
  36 {
  37     if (!(flags ^ NodeDoesNotExit)) {
  38         out.print("<empty>");
  39         return;
  40     }
  41
  42     CommaPrinter comma("|");
  43
  44     if (flags & NodeResultMask) {
  45         switch (flags & NodeResultMask) {
  46         case NodeResultJS:
  47             out.print(comma, "JS");
  48             break;
  49         case NodeResultNumber:
  50             out.print(comma, "Number");
  51             break;
  52         case NodeResultInt32:
  53             out.print(comma, "Int32");
  54             break;
  55         case NodeResultBoolean:
  56             out.print(comma, "Boolean");
  57             break;
  58         case NodeResultStorage:
  59             out.print(comma, "Storage");
  60             break;
  61         default:
  62             RELEASE_ASSERT_NOT_REACHED();
  63             break;
  64         }
  65     }
  66
  67     if (flags & NodeMustGenerate)
  68         out.print(comma, "MustGen");
  69
  70     if (flags & NodeHasVarArgs)
  71         out.print(comma, "VarArgs");
  72
  73     if (flags & NodeClobbersWorld)
  74         out.print(comma, "Clobbers");
  75
  76     if (flags & NodeMightClobber)
  77         out.print(comma, "MightClobber");
  78
  79     if (flags & NodeResultMask) {
  80         if (!(flags & NodeUsedAsNumber) && !(flags & NodeNeedsNegZero))
  81             out.print(comma, "PureInt");
  82         else if (!(flags & NodeUsedAsNumber))
  83             out.print(comma, "PureInt(w/ neg zero)");
  84         else if (!(flags & NodeNeedsNegZero))
  85             out.print(comma, "PureNum");
  86         if (flags & NodeUsedAsOther)
  87             out.print(comma, "UseAsOther");
  88     }
  89
  90     if (flags & NodeMayOverflow)
  91         out.print(comma, "MayOverflow");
  92
  93     if (flags & NodeMayNegZero)
  94         out.print(comma, "MayNegZero");
  95
  96     if (flags & NodeUsedAsInt)
  97         out.print(comma, "UseAsInt");
  98
  99     if (!(flags & NodeDoesNotExit))
 100         out.print(comma, "CanExit");
 101
 102     if (flags & NodeExitsForward)
 103         out.print(comma, "NodeExitsForward");
 104 }
 105
 106 } } // namespace JSC::DFG
 107
 108 #endif // ENABLE(DFG_JIT)
 109