1 files changed, 5 insertions, 0 deletions
diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index 0e24237faae5..83081bbf0aa0 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -17600,6 +17600,11 @@ static void RemoveNestedImmediateInvocation(
       DRSet.erase(E);
       return E;
     }
+    ExprResult TransformLambdaExpr(LambdaExpr *E) {
+      // Do not rebuild lambdas to avoid creating a new type.
+      // Lambdas have already been processed inside their eval context.
+      return E;
+    }
     bool AlwaysRebuild() { return false; }
     bool ReplacingOriginal() { return true; }
     bool AllowSkippingCXXConstructExpr() {