Use AttributeSet accessor methods instead of Attribute accessor methods.

Further encapsulation of the Attribute object. Don't allow direct access to the
Attribute object as an aggregate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172853 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/IR/Attributes.cpp b/lib/IR/Attributes.cpp
index 173782e..bb98358 100644
--- a/lib/IR/Attributes.cpp
+++ b/lib/IR/Attributes.cpp
@@ -660,6 +660,11 @@
   return false;
 }
 
+AttributeSet AttributeSet::addRetAttributes(LLVMContext &C,
+                                            AttributeSet Attrs) const {
+  return addAttr(C, ReturnIndex, getAttributes(ReturnIndex));
+}
+
 AttributeSet AttributeSet::addFnAttributes(LLVMContext &C,
                                            AttributeSet Attrs) const {
   return addAttr(C, FunctionIndex, getAttributes(FunctionIndex));