Fix typo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51303 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/JumpThreading.cpp b/lib/Transforms/Scalar/JumpThreading.cpp
index d79a6ce..25f41d3 100644
--- a/lib/Transforms/Scalar/JumpThreading.cpp
+++ b/lib/Transforms/Scalar/JumpThreading.cpp
@@ -158,7 +158,7 @@
 /// ThreadBlock - If there are any predecessors whose control can be threaded
 /// through to a successor, transform them now.
 bool JumpThreading::ThreadBlock(BasicBlock *BB) {
-  // See if this block ends with a branch of switch.  If so, see if the
+  // See if this block ends with a branch or switch.  If so, see if the
   // condition is a phi node.  If so, and if an entry of the phi node is a
   // constant, we can thread the block.
   Value *Condition;