| /* |
| * 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 |
| |
