diff options
| -rw-r--r-- | include/llvm/ADT/SparseBitVector.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/llvm/ADT/SparseBitVector.h b/include/llvm/ADT/SparseBitVector.h index 791f108..306e928 100644 --- a/include/llvm/ADT/SparseBitVector.h +++ b/include/llvm/ADT/SparseBitVector.h @@ -262,6 +262,22 @@ public: } }; +template <unsigned ElementSize> +struct ilist_traits<SparseBitVectorElement<ElementSize> > + : public ilist_default_traits<SparseBitVectorElement<ElementSize> > { + typedef SparseBitVectorElement<ElementSize> Element; + + Element *createSentinel() const { return static_cast<Element *>(&Sentinel); } + static void destroySentinel(Element *) {} + + Element *provideInitialHead() const { return createSentinel(); } + Element *ensureHead(Element *) const { return createSentinel(); } + static void noteHead(Element *, Element *) {} + +private: + mutable ilist_half_node<Element> Sentinel; +}; + template <unsigned ElementSize = 128> class SparseBitVector { typedef ilist<SparseBitVectorElement<ElementSize> > ElementList; |