bytecode/VirtualRegister.cpp

   1 /*
   2  * Copyright (C) 2011, 2015 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 "VirtualRegister.h"
  28
  29 namespace JSC {
  30
  31 void VirtualRegister::dump(PrintStream& out) const
  32 {
  33     if (!isValid()) {
  34         out.print("<invalid>");
  35         return;
  36     }
  37
  38     if (isHeader()) {
  39         out.print("head", m_virtualRegister);
  40         return;
  41     }
  42
  43     if (isConstant()) {
  44         out.print("const", toConstantIndex());
  45         return;
  46     }
  47
  48     if (isArgument()) {
  49         if (!toArgument())
  50             out.print("this");
  51         else
  52             out.print("arg", toArgument());
  53         return;
  54     }
  55
  56     if (isLocal()) {
  57         out.print("loc", toLocal());
  58         return;
  59     }
  60
  61     RELEASE_ASSERT_NOT_REACHED();
  62 }
  63
  64 } // namespace JSC
  65