mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-11 03:10:57 +00:00
89 lines
2.7 KiB
C++
89 lines
2.7 KiB
C++
/*
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* Copyright (C) 2014 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "DFGPrePostNumbering.h"
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#if ENABLE(DFG_JIT)
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#include "DFGBlockMapInlines.h"
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#include "DFGBlockWorklist.h"
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#include "DFGGraph.h"
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namespace JSC { namespace DFG {
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PrePostNumbering::PrePostNumbering(Graph& graph)
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{
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m_map = BlockMap<Numbering>(graph);
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PostOrderBlockWorklist worklist;
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worklist.push(graph.block(0));
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unsigned nextPreNumber = 0;
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unsigned nextPostNumber = 0;
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while (BlockWithOrder item = worklist.pop()) {
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switch (item.order) {
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case VisitOrder::Pre:
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m_map[item.node].m_preNumber = nextPreNumber++;
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worklist.pushPost(item.node);
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for (BasicBlock* successor : item.node->successors())
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worklist.push(successor);
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break;
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case VisitOrder::Post:
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m_map[item.node].m_postNumber = nextPostNumber++;
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break;
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}
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}
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}
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PrePostNumbering::~PrePostNumbering() { }
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} } // namespace JSC::DFG
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namespace WTF {
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using namespace JSC::DFG;
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void printInternal(PrintStream& out, EdgeKind kind)
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{
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switch (kind) {
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case ForwardEdge:
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out.print("ForwardEdge");
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return;
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case CrossEdge:
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out.print("CrossEdge");
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return;
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case BackEdge:
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out.print("BackEdge");
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return;
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}
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RELEASE_ASSERT_NOT_REACHED();
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}
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} // namespace WTF
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#endif // ENABLE(DFG_JIT)
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