Add some helpful comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173631 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/IR/AttributeImpl.h b/lib/IR/AttributeImpl.h
index 2aba3c4..c565364 100644
--- a/lib/IR/AttributeImpl.h
+++ b/lib/IR/AttributeImpl.h
@@ -117,14 +117,23 @@
public:
AttributeSetImpl(LLVMContext &C, ArrayRef<AttributeWithIndex> attrs);
+ /// \brief Get the context that created this AttributeSetImpl.
LLVMContext &getContext() { return Context; }
+
ArrayRef<AttributeWithIndex> getAttributes() const { return AttrList; }
- unsigned getNumAttributes() const {
- return AttrNodes.size();
- }
- unsigned getSlotIndex(unsigned Slot) const {
- return AttrNodes[Slot].first;
- }
+
+ /// \brief Return the number of attributes this AttributeSet contains.
+ unsigned getNumAttributes() const { return AttrNodes.size(); }
+
+ /// \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 AttrNodes[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 {
// FIXME: This needs to use AttrNodes instead.
return AttributeSet::get(Context, AttrList[Slot]);