diff --git a/llvm/lib/CodeGen/MachineCheckDebugify.cpp b/llvm/lib/CodeGen/MachineCheckDebugify.cpp
--- a/llvm/lib/CodeGen/MachineCheckDebugify.cpp
+++ b/llvm/lib/CodeGen/MachineCheckDebugify.cpp
@@ -106,8 +106,7 @@
 
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.addRequired<MachineModuleInfoWrapperPass>();
-    AU.addPreserved<MachineModuleInfoWrapperPass>();
-    AU.setPreservesCFG();
+    AU.setPreservesAll();
   }
 
   static char ID; // Pass identification.