diff --git a/llvm/lib/IR/LegacyPassManager.cpp b/llvm/lib/IR/LegacyPassManager.cpp
--- a/llvm/lib/IR/LegacyPassManager.cpp
+++ b/llvm/lib/IR/LegacyPassManager.cpp
@@ -1614,7 +1614,8 @@
     dumpUsedSet(FP);
 
     verifyPreservedAnalysis(FP);
-    removeNotPreservedAnalysis(FP);
+    if (LocalChanged)
+      removeNotPreservedAnalysis(FP);
     recordAvailableAnalysis(FP);
     removeDeadPasses(FP, F.getName(), ON_FUNCTION_MSG);
   }
@@ -1723,7 +1724,8 @@
     dumpUsedSet(MP);
 
     verifyPreservedAnalysis(MP);
-    removeNotPreservedAnalysis(MP);
+    if (LocalChanged)
+      removeNotPreservedAnalysis(MP);
     recordAvailableAnalysis(MP);
     removeDeadPasses(MP, M.getModuleIdentifier(), ON_MODULE_MSG);
   }