/* * Copyright (C) 2018 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. */ #pragma once namespace JSC { template<typename VariantVectorType, typename VariantType> bool appendICStatusVariant(VariantVectorType& variants, const VariantType& variant) { // Attempt to merge this variant with an already existing variant. for (unsigned i = 0; i < variants.size(); ++i) { if (variants[i].attemptToMerge(variant)) return true; } // Make sure there is no overlap. We should have pruned out opportunities for // overlap but it's possible that an inline cache got into a weird state. We are // defensive and bail if we detect crazy. for (unsigned i = 0; i < variants.size(); ++i) { if (variants[i].structureSet().overlaps(variant.structureSet())) return false; } variants.append(variant); return true; } template<typename VariantVectorType> void filterICStatusVariants(VariantVectorType& variants, const StructureSet& set) { // FIXME: We could also filter the variants themselves. variants.removeAllMatching( [&] (auto& variant) -> bool { return !variant.structureSet().overlaps(set); }); } } // namespace JSC