diff --git a/include/llvm/CodeGen/SelectionDAGISel.h b/include/llvm/CodeGen/SelectionDAGISel.h
index 22fe5559087..4c44eb1c65f 100644
--- a/include/llvm/CodeGen/SelectionDAGISel.h
+++ b/include/llvm/CodeGen/SelectionDAGISel.h
@@ -40,9 +40,7 @@ public:
 
   SelectionDAGISel(TargetLowering &tli) : TLI(tli) {}
 
-  virtual void getAnalysisUsage(AnalysisUsage &AU) const {
-    AU.setPreservesAll();
-  }
+  virtual void getAnalysisUsage(AnalysisUsage &AU) const;
 
   virtual bool runOnFunction(Function &Fn);