diff --git a/llvm/include/llvm/IR/PassManager.h b/llvm/include/llvm/IR/PassManager.h
--- a/llvm/include/llvm/IR/PassManager.h
+++ b/llvm/include/llvm/IR/PassManager.h
@@ -841,6 +841,19 @@
     return true;
   }
 
+  /// Setup an analysis pass previously registered with the manager.
+  ///
+  /// The parameter is a callable taking a pointer to \p PassT and returning bool.
+  /// This allows passing in a lambda to modify the analysis behavior after
+  /// it has been registered.
+  template <typename PassT, typename CallableT>
+  bool setupAnalysis(CallableT Setup) {
+    auto &PassPtr = AnalysisPasses[PassT::ID()];
+    if (PassPtr)
+      return Setup(PassPtr.get());
+    return false;
+  }
+
   /// Invalidate a specific analysis pass for an IR module.
   ///
   /// Note that the analysis result can disregard invalidation, if it determines