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author | Simon Hausmann <simon.hausmann@nokia.com> | 2012-05-07 11:21:11 +0200 |
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committer | Simon Hausmann <simon.hausmann@nokia.com> | 2012-05-07 11:21:11 +0200 |
commit | 2cf6c8816a73e0132bd8fa3b509d62d7c51b6e47 (patch) | |
tree | 988e8c5b116dd0466244ae2fe5af8ee9be926d76 /Source/JavaScriptCore/dfg/DFGNodeUse.h | |
parent | dd91e772430dc294e3bf478c119ef8d43c0a3358 (diff) | |
download | qtwebkit-2cf6c8816a73e0132bd8fa3b509d62d7c51b6e47.tar.gz |
Imported WebKit commit 7e538425aa020340619e927792f3d895061fb54b (http://svn.webkit.org/repository/webkit/trunk@116286)
Diffstat (limited to 'Source/JavaScriptCore/dfg/DFGNodeUse.h')
-rw-r--r-- | Source/JavaScriptCore/dfg/DFGNodeUse.h | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/Source/JavaScriptCore/dfg/DFGNodeUse.h b/Source/JavaScriptCore/dfg/DFGNodeUse.h deleted file mode 100644 index 71154997c..000000000 --- a/Source/JavaScriptCore/dfg/DFGNodeUse.h +++ /dev/null @@ -1,130 +0,0 @@ -/* - * Copyright (C) 2011 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. - */ - -#ifndef DFGNodeUse_h -#define DFGNodeUse_h - -#include <wtf/Platform.h> - -#if ENABLE(DFG_JIT) - -#include "DFGCommon.h" - -namespace JSC { namespace DFG { - -class NodeReferenceBlob; - -class NodeUse { -public: - NodeUse() - : m_encodedWord(makeWord(NoNode, UntypedUse)) - { - } - - explicit NodeUse(NodeIndex nodeIndex) - : m_encodedWord(makeWord(nodeIndex, UntypedUse)) - { - } - - NodeUse(NodeIndex nodeIndex, UseKind useKind) - : m_encodedWord(makeWord(nodeIndex, useKind)) - { - } - - NodeIndex indexUnchecked() const { return m_encodedWord >> shift(); } - NodeIndex index() const - { - ASSERT(isSet()); - return m_encodedWord >> shift(); - } - void setIndex(NodeIndex nodeIndex) - { - m_encodedWord = makeWord(nodeIndex, useKind()); - } - - UseKind useKind() const - { - ASSERT(isSet()); - unsigned masked = m_encodedWord & (((1 << shift()) - 1)); - ASSERT(masked < LastUseKind); - return static_cast<UseKind>(masked); - } - void setUseKind(UseKind useKind) - { - ASSERT(isSet()); - m_encodedWord = makeWord(index(), useKind); - } - - bool isSet() const { return indexUnchecked() != NoNode; } - bool operator!() const { return !isSet(); } - - bool operator==(NodeUse other) const - { - return m_encodedWord == other.m_encodedWord; - } - bool operator!=(NodeUse other) const - { - return m_encodedWord != other.m_encodedWord; - } - -private: - friend class NodeReferenceBlob; - - static uint32_t shift() { return 4; } - - static int32_t makeWord(NodeIndex nodeIndex, UseKind useKind) - { - ASSERT(static_cast<uint32_t>(((static_cast<int32_t>(nodeIndex) << shift()) >> shift())) == nodeIndex); - ASSERT(useKind >= 0 && useKind < LastUseKind); - ASSERT(LastUseKind <= (1 << shift())); - return (nodeIndex << shift()) | useKind; - } - - int32_t m_encodedWord; -}; - -inline bool operator==(NodeUse nodeUse, NodeIndex nodeIndex) -{ - return nodeUse.indexUnchecked() == nodeIndex; -} -inline bool operator==(NodeIndex nodeIndex, NodeUse nodeUse) -{ - return nodeUse.indexUnchecked() == nodeIndex; -} -inline bool operator!=(NodeUse nodeUse, NodeIndex nodeIndex) -{ - return nodeUse.indexUnchecked() != nodeIndex; -} -inline bool operator!=(NodeIndex nodeIndex, NodeUse nodeUse) -{ - return nodeUse.indexUnchecked() != nodeIndex; -} - -} } // namespace JSC::DFG - -#endif // ENABLE(DFG_JIT) - -#endif // DFGNodeUse_h - |