Make helpers static. NFC.
llvm-svn: 318953
diff --git a/llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp b/llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp
index 5cfd3cd..3d0fca0 100644
--- a/llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp
+++ b/llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp
@@ -136,10 +136,10 @@
// FIXME: Neither of these issues are a big deal and could be addressed with
// some amount of refactoring of IDFCalculator. That would allow us to share
// the core logic here (which is solving the same core problem).
-void appendDomFrontier(DomTreeNode *Node,
- SmallSetVector<BasicBlock *, 4> &Worklist,
- SmallVectorImpl<DomTreeNode *> &DomNodes,
- SmallPtrSetImpl<BasicBlock *> &DomSet) {
+static void appendDomFrontier(DomTreeNode *Node,
+ SmallSetVector<BasicBlock *, 4> &Worklist,
+ SmallVectorImpl<DomTreeNode *> &DomNodes,
+ SmallPtrSetImpl<BasicBlock *> &DomSet) {
assert(DomNodes.empty() && "Must start with no dominator nodes.");
assert(DomSet.empty() && "Must start with an empty dominator set.");