1 files changed, 2 insertions, 1 deletions
diff --git a/polly/lib/Analysis/ScopPass.cpp b/polly/lib/Analysis/ScopPass.cpp
index 9f8b5c233585..719cd0f6984e 100644
--- a/polly/lib/Analysis/ScopPass.cpp
+++ b/polly/lib/Analysis/ScopPass.cpp
@@ -19,6 +19,7 @@
 #include "llvm/Analysis/OptimizationRemarkEmitter.h"
 #include "llvm/Analysis/ScalarEvolutionAliasAnalysis.h"
 #include "llvm/Analysis/TargetTransformInfo.h"
+#include <optional>
 
 using namespace llvm;
 using namespace polly;
@@ -119,7 +120,7 @@ bool ScopAnalysisManagerFunctionProxy::Result::invalidate(
   // Even if all analyses were preserved, we still need to run deferred
   // invalidation
   for (auto &S : *SI) {
-    Optional<PreservedAnalyses> InnerPA;
+    std::optional<PreservedAnalyses> InnerPA;
     auto *scop = S.second.get();
     if (!scop)
       continue;