+ AttributeSetImpl(LLVMContext &C,
+ ArrayRef<std::pair<unsigned, AttributeSetNode *> > Attrs)
+ : Context(C), NumAttrs(Attrs.size()) {
+#ifndef NDEBUG
+ if (Attrs.size() >= 2) {
+ for (const std::pair<unsigned, AttributeSetNode *> *i = Attrs.begin() + 1,
+ *e = Attrs.end();
+ i != e; ++i) {
+ assert((i-1)->first <= i->first && "Attribute set not ordered!");
+ }
+ }
+#endif
+ // There's memory after the node where we can store the entries in.
+ std::copy(Attrs.begin(), Attrs.end(),
+ reinterpret_cast<IndexAttrPair *>(this + 1));
+ }
+
+ /// \brief Get the context that created this AttributeSetImpl.
+ LLVMContext &getContext() { return Context; }
+
+ /// \brief Return the number of attributes this AttributeSet contains.
+ unsigned getNumAttributes() const { return NumAttrs; }
+
+ /// \brief Get the index of the given "slot" in the AttrNodes list. This index
+ /// is the index of the return, parameter, or function object that the
+ /// attributes are applied to, not the index into the AttrNodes list where the
+ /// attributes reside.
+ unsigned getSlotIndex(unsigned Slot) const {
+ return getNode(Slot)->first;
+ }
+
+ /// \brief Retrieve the attributes for the given "slot" in the AttrNode list.
+ /// \p Slot is an index into the AttrNodes list, not the index of the return /
+ /// parameter/ function which the attributes apply to.
+ AttributeSet getSlotAttributes(unsigned Slot) const {
+ return AttributeSet::get(Context, *getNode(Slot));
+ }