diff --git a/lib/Analysis/AliasAnalysis.cpp b/lib/Analysis/AliasAnalysis.cpp
index f88e40adb90..84da76be98b 100644
--- a/lib/Analysis/AliasAnalysis.cpp
+++ b/lib/Analysis/AliasAnalysis.cpp
@@ -72,9 +72,6 @@ AAResults::~AAResults() {
 
 bool AAResults::invalidate(Function &F, const PreservedAnalyses &PA,
                            FunctionAnalysisManager::Invalidator &Inv) {
-  if (PA.areAllPreserved())
-    return false; // Nothing to do, everything is still valid.
-
   // Check if the AA manager itself has been invalidated.
   auto PAC = PA.getChecker<AAManager>();
   if (!PAC.preserved() && !PAC.preservedSet<AllAnalysesOn<Function>>())
diff --git a/lib/Analysis/BasicAliasAnalysis.cpp b/lib/Analysis/BasicAliasAnalysis.cpp
index 406f2744e56..e8d86bdbca5 100644
--- a/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/lib/Analysis/BasicAliasAnalysis.cpp
@@ -65,9 +65,6 @@ static const unsigned MaxLookupSearchDepth = 6;
 
 bool BasicAAResult::invalidate(Function &F, const PreservedAnalyses &PA,
                                FunctionAnalysisManager::Invalidator &Inv) {
-  if (PA.areAllPreserved())
-    return false; // Nothing to do, everything is still valid.
-
   // We don't care if this analysis itself is preserved, it has no state. But
   // we need to check that the analyses it depends on have been. Note that we
   // may be created without handles to some analyses and in that case don't