diff --git a/interpreter/llvm-project/clang/include/clang/Sema/Sema.h b/interpreter/llvm-project/clang/include/clang/Sema/Sema.h
index f53e08ac0cf13..a943a477f0554 100644
--- a/interpreter/llvm-project/clang/include/clang/Sema/Sema.h
+++ b/interpreter/llvm-project/clang/include/clang/Sema/Sema.h
@@ -13139,30 +13139,21 @@ class Sema final : public SemaBase {
   class ContextAndScopeRAII {
   private:
     Sema &S;
-    DeclContext *SavedContext;
+    ContextRAII SavedContext;
     Scope *SavedScope;
-    ProcessingContextState SavedContextState;
-    QualType SavedCXXThisTypeOverride;
 
   public:
     ContextAndScopeRAII(Sema &S, DeclContext *ContextToPush, Scope *ScopeToPush)
-        : S(S), SavedContext(S.CurContext), SavedScope(S.CurScope),
-          SavedContextState(S.DelayedDiagnostics.pushUndelayed()),
-          SavedCXXThisTypeOverride(S.CXXThisTypeOverride) {
-      assert(ContextToPush && "pushing null context");
-      S.CurContext = ContextToPush;
+        : S(S), SavedContext(S, ContextToPush), SavedScope(S.CurScope) {
       S.CurScope = ScopeToPush;
     }
 
     void pop() {
-      if (!SavedContext)
+      SavedContext.pop();
+      if (!SavedScope)
         return;
-      S.CurContext = SavedContext;
       S.CurScope = SavedScope;
-      S.DelayedDiagnostics.popUndelayed(SavedContextState);
-      S.CXXThisTypeOverride = SavedCXXThisTypeOverride;
-      SavedContext = 0;
-      SavedScope = 0;
+      SavedScope = nullptr;
     }
 
     ~ContextAndScopeRAII() { pop(); }
diff --git a/interpreter/llvm-project/llvm-project.tag b/interpreter/llvm-project/llvm-project.tag
index 26bc433175990..115c92a7c35e7 100644
--- a/interpreter/llvm-project/llvm-project.tag
+++ b/interpreter/llvm-project/llvm-project.tag
@@ -1 +1 @@
-ROOT-llvm20-20260616-01
+ROOT-llvm20-20261021-01