/* * 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 "DFGBlockWorklist.h" #if ENABLE(DFG_JIT) #include "DFGBasicBlock.h" namespace JSC { namespace DFG { BlockWorklist::BlockWorklist() { } BlockWorklist::~BlockWorklist() { } bool BlockWorklist::push(BasicBlock* block) { if (!m_seen.add(block)) return false; m_stack.append(block); return true; } BasicBlock* BlockWorklist::pop() { if (m_stack.isEmpty()) return nullptr; return m_stack.takeLast(); } PostOrderBlockWorklist::PostOrderBlockWorklist() { } PostOrderBlockWorklist::~PostOrderBlockWorklist() { } bool PostOrderBlockWorklist::pushPre(BasicBlock* block) { return m_worklist.push(block, PreOrder); } void PostOrderBlockWorklist::pushPost(BasicBlock* block) { m_worklist.forcePush(block, PostOrder); } BlockWithOrder PostOrderBlockWorklist::pop() { BlockWith<VisitOrder> result = m_worklist.pop(); return BlockWithOrder(result.block, result.data); } } } // namespace JSC::DFG #endif // ENABLE(DFG_JIT)