Remove the Function::getFnAttributes method in favor of using the AttributeSet
directly.

This is in preparation for removing the use of the 'Attribute' class as a
collection of attributes. That will shift to the AttributeSet class instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171253 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/LoopUnswitch.cpp b/lib/Transforms/Scalar/LoopUnswitch.cpp
index e2e42e5..d8cd653 100644
--- a/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -646,7 +646,8 @@
 
   // Do not do non-trivial unswitch while optimizing for size.
   if (OptimizeForSize ||
-      F->getFnAttributes().hasAttribute(Attribute::OptimizeForSize))
+      F->getAttributes().hasAttribute(AttributeSet::FunctionIndex,
+                                      Attribute::OptimizeForSize))
     return false;
 
   UnswitchNontrivialCondition(LoopCond, Val, currentLoop);