Index: lib/IR/LegacyPassManager.cpp
===================================================================
--- lib/IR/LegacyPassManager.cpp
+++ lib/IR/LegacyPassManager.cpp
@@ -1677,6 +1677,10 @@
     // that we checked for an available analysis above.
     FPP->add(RequiredPass);
   }
+  else
+  {
+    delete RequiredPass;
+  }
   // Register P as the last user of FoundPass or RequiredPass.
   SmallVector<Pass *, 1> LU;
   LU.push_back(FoundPass);