diff --git a/lib/CodeGen/MachineLICM.cpp b/lib/CodeGen/MachineLICM.cpp
index 4ba63bc..f33acf4 100644
--- a/lib/CodeGen/MachineLICM.cpp
+++ b/lib/CodeGen/MachineLICM.cpp
@@ -61,6 +61,7 @@
     /// FIXME: Loop preheaders?
     ///
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      MachineFunctionPass::getAnalysisUsage(AU);
       AU.setPreservesCFG();
       AU.addRequired<MachineLoopInfo>();
       AU.addRequired<MachineDominatorTree>();