webkitgtk-2.4.11webkitgtk-2.4.11

1 files changed, 0 insertions, 127 deletions

diff --git a/Source/JavaScriptCore/dfg/DFGSafepoint.cpp b/Source/JavaScriptCore/dfg/DFGSafepoint.cpp
deleted file mode 100644
index 11ba5ad9b..000000000
--- a/Source/JavaScriptCore/dfg/DFGSafepoint.cpp
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * Copyright (C) 2014 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
- */
-
-#include "config.h"
-#include "DFGSafepoint.h"
-
-#if ENABLE(DFG_JIT)
-
-#include "DFGPlan.h"
-#include "DFGScannable.h"
-#include "DFGThreadData.h"
-#include "JSCInlines.h"
-
-namespace JSC { namespace DFG {
-
-Safepoint::Result::~Result()
-{
-    RELEASE_ASSERT(m_wasChecked);
-}
-
-bool Safepoint::Result::didGetCancelled()
-{
-    m_wasChecked = true;
-    return m_didGetCancelled;
-}
-
-Safepoint::Safepoint(Plan& plan, Result& result)
-    : m_plan(plan)
-    , m_didCallBegin(false)
-    , m_result(result)
-{
-    RELEASE_ASSERT(result.m_wasChecked);
-    result.m_wasChecked = false;
-    result.m_didGetCancelled = false;
-}
-
-Safepoint::~Safepoint()
-{
-    RELEASE_ASSERT(m_didCallBegin);
-    if (ThreadData* data = m_plan.threadData) {
-        RELEASE_ASSERT(data->m_safepoint == this);
-        data->m_rightToRun.lock();
-        data->m_safepoint = nullptr;
-    }
-}
-
-void Safepoint::add(Scannable* scannable)
-{
-    RELEASE_ASSERT(!m_didCallBegin);
-    m_scannables.append(scannable);
-}
-
-void Safepoint::begin()
-{
-    RELEASE_ASSERT(!m_didCallBegin);
-    m_didCallBegin = true;
-    if (ThreadData* data = m_plan.threadData) {
-        RELEASE_ASSERT(!data->m_safepoint);
-        data->m_safepoint = this;
-        data->m_rightToRun.unlock();
-    }
-}
-
-void Safepoint::checkLivenessAndVisitChildren(SlotVisitor& visitor)
-{
-    RELEASE_ASSERT(m_didCallBegin);
-
-    if (m_result.m_didGetCancelled)
-        return; // We were cancelled during a previous GC!
-    
-    if (!isKnownToBeLiveDuringGC())
-        return;
-    
-    for (unsigned i = m_scannables.size(); i--;)
-        m_scannables[i]->visitChildren(visitor);
-}
-
-bool Safepoint::isKnownToBeLiveDuringGC()
-{
-    RELEASE_ASSERT(m_didCallBegin);
-    
-    if (m_result.m_didGetCancelled)
-        return true; // We were cancelled during a previous GC, so let's not mess with it this time around - pretend it's live and move on.
-    
-    return m_plan.isKnownToBeLiveDuringGC();
-}
-
-void Safepoint::cancel()
-{
-    RELEASE_ASSERT(m_didCallBegin);
-    RELEASE_ASSERT(!m_result.m_didGetCancelled); // We cannot get cancelled twice because subsequent GCs will think that we're alive and they will not do anything to us.
-    
-    m_plan.cancel();
-    m_result.m_didGetCancelled = true;
-}
-
-VM& Safepoint::vm() const
-{
-    return m_plan.vm;
-}
-
-} } // namespace JSC::DFG
-
-#endif // ENABLE(DFG_JIT)
-