/* * Copyright (C) 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. AND ITS CONTRIBUTORS ``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 ITS 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 DFGStoreBarrierInsertionPhase_h #define DFGStoreBarrierInsertionPhase_h #if ENABLE(DFG_JIT) namespace JSC { namespace DFG { class Graph; // Inserts store barriers in a block-local manner without consulting the abstract interpreter. // Uses a simple epoch-based analysis to avoid inserting redundant barriers. This phase requires // that we are not in SSA. bool performFastStoreBarrierInsertion(Graph&); // Inserts store barriers using a global analysis and consults the abstract interpreter. Uses a // simple epoch-based analysis to avoid inserting redundant barriers, but only propagates "same // epoch as current" property from one block to the next. This phase requires SSA. This phase // also requires having valid AI and liveness. bool performGlobalStoreBarrierInsertion(Graph&); } } // namespace JSC::DFG #endif // ENABLE(DFG_JIT) #endif // DFGStoreBarrierInsertionPhase_h