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author | Lorry Tar Creator <lorry-tar-importer@lorry> | 2016-04-10 09:28:39 +0000 |
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committer | Lorry Tar Creator <lorry-tar-importer@lorry> | 2016-04-10 09:28:39 +0000 |
commit | 32761a6cee1d0dee366b885b7b9c777e67885688 (patch) | |
tree | d6bec92bebfb216f4126356e55518842c2f476a1 /Source/JavaScriptCore/dfg/DFGCleanUpPhase.cpp | |
parent | a4e969f4965059196ca948db781e52f7cfebf19e (diff) | |
download | WebKitGtk-tarball-32761a6cee1d0dee366b885b7b9c777e67885688.tar.gz |
webkitgtk-2.4.11webkitgtk-2.4.11
Diffstat (limited to 'Source/JavaScriptCore/dfg/DFGCleanUpPhase.cpp')
-rw-r--r-- | Source/JavaScriptCore/dfg/DFGCleanUpPhase.cpp | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/Source/JavaScriptCore/dfg/DFGCleanUpPhase.cpp b/Source/JavaScriptCore/dfg/DFGCleanUpPhase.cpp deleted file mode 100644 index 313094c39..000000000 --- a/Source/JavaScriptCore/dfg/DFGCleanUpPhase.cpp +++ /dev/null @@ -1,92 +0,0 @@ -/* - * Copyright (C) 2014, 2015 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 "DFGCleanUpPhase.h" - -#if ENABLE(DFG_JIT) - -#include "DFGGraph.h" -#include "DFGInsertionSet.h" -#include "DFGPhase.h" -#include "DFGPredictionPropagationPhase.h" -#include "DFGVariableAccessDataDump.h" -#include "JSCInlines.h" - -namespace JSC { namespace DFG { - -class CleanUpPhase : public Phase { -public: - CleanUpPhase(Graph& graph) - : Phase(graph, "clean up") - { - } - - bool run() - { - bool changed = false; - - for (BasicBlock* block : m_graph.blocksInNaturalOrder()) { - unsigned sourceIndex = 0; - unsigned targetIndex = 0; - while (sourceIndex < block->size()) { - Node* node = block->at(sourceIndex++); - bool kill = false; - - if (node->op() == Check) - node->children = node->children.justChecks(); - - switch (node->op()) { - case Phantom: - case Check: - if (node->children.isEmpty()) - kill = true; - break; - default: - break; - } - - if (kill) - m_graph.m_allocator.free(node); - else - block->at(targetIndex++) = node; - } - block->resize(targetIndex); - } - - return changed; - } -}; - -bool performCleanUp(Graph& graph) -{ - SamplingRegion samplingRegion("DFG Clean Up Phase"); - return runPhase<CleanUpPhase>(graph); -} - -} } // namespace JSC::DFG - -#endif // ENABLE(DFG_JIT) - |