dfg/DFGCommon.cpp

   1 /*
   2  * Copyright (C) 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 "DFGCommon.h"
  28
  29 #if ENABLE(DFG_JIT)
  30
  31 #include "DFGNode.h"
  32 #include "JSCInlines.h"
  33
  34 namespace JSC { namespace DFG {
  35
  36 void startCrashing()
  37 {
  38 #if ENABLE(COMPARE_AND_SWAP)
  39     static unsigned lock;
  40     while (!WTF::weakCompareAndSwap(&lock, 0, 1))
  41         std::this_thread::yield();
  42 #endif
  43 }
  44
  45 } } // namespace JSC::DFG
  46
  47 namespace WTF {
  48
  49 using namespace JSC::DFG;
  50
  51 void printInternal(PrintStream& out, OptimizationFixpointState state)
  52 {
  53     switch (state) {
  54     case BeforeFixpoint:
  55         out.print("BeforeFixpoint");
  56         return;
  57     case FixpointNotConverged:
  58         out.print("FixpointNotConverged");
  59         return;
  60     case FixpointConverged:
  61         out.print("FixpointConverged");
  62         return;
  63     }
  64     RELEASE_ASSERT_NOT_REACHED();
  65 }
  66
  67 void printInternal(PrintStream& out, GraphForm form)
  68 {
  69     switch (form) {
  70     case LoadStore:
  71         out.print("LoadStore");
  72         return;
  73     case ThreadedCPS:
  74         out.print("ThreadedCPS");
  75         return;
  76     case SSA:
  77         out.print("SSA");
  78         return;
  79     }
  80     RELEASE_ASSERT_NOT_REACHED();
  81 }
  82
  83 void printInternal(PrintStream& out, UnificationState state)
  84 {
  85     switch (state) {
  86     case LocallyUnified:
  87         out.print("LocallyUnified");
  88         return;
  89     case GloballyUnified:
  90         out.print("GloballyUnified");
  91         return;
  92     }
  93     RELEASE_ASSERT_NOT_REACHED();
  94 }
  95
  96 void printInternal(PrintStream& out, RefCountState state)
  97 {
  98     switch (state) {
  99     case EverythingIsLive:
 100         out.print("EverythingIsLive");
 101         return;
 102     case ExactRefCount:
 103         out.print("ExactRefCount");
 104         return;
 105     }
 106     RELEASE_ASSERT_NOT_REACHED();
 107 }
 108
 109 void printInternal(PrintStream& out, ProofStatus status)
 110 {
 111     switch (status) {
 112     case IsProved:
 113         out.print("IsProved");
 114         return;
 115     case NeedsCheck:
 116         out.print("NeedsCheck");
 117         return;
 118     }
 119     RELEASE_ASSERT_NOT_REACHED();
 120 }
 121
 122 } // namespace WTF
 123
 124 #endif // ENABLE(DFG_JIT)
 125