diff --git a/llvm/include/llvm/Analysis/BasicAliasAnalysis.h b/llvm/include/llvm/Analysis/BasicAliasAnalysis.h
--- a/llvm/include/llvm/Analysis/BasicAliasAnalysis.h
+++ b/llvm/include/llvm/Analysis/BasicAliasAnalysis.h
@@ -181,23 +181,6 @@
 /// of a \c ModulePass or a \c CallGraphSCCPass.
 BasicAAResult createLegacyPMBasicAAResult(Pass &P, Function &F);
 
-/// This class is a functor to be used in legacy module or SCC passes for
-/// computing AA results for a function. We store the results in fields so that
-/// they live long enough to be queried, but we re-use them each time.
-class LegacyAARGetter {
-  Pass &P;
-  std::optional<BasicAAResult> BAR;
-  std::optional<AAResults> AAR;
-
-public:
-  LegacyAARGetter(Pass &P) : P(P) {}
-  AAResults &operator()(Function &F) {
-    BAR.emplace(createLegacyPMBasicAAResult(P, F));
-    AAR.emplace(createLegacyPMAAResults(P, F, *BAR));
-    return *AAR;
-  }
-};
-
 } // end namespace llvm
 
 #endif // LLVM_ANALYSIS_BASICALIASANALYSIS_H