1 files changed, 10 insertions, 3 deletions
diff --git a/contrib/llvm-project/clang/lib/AST/ASTStructuralEquivalence.cpp b/contrib/llvm-project/clang/lib/AST/ASTStructuralEquivalence.cpp
index 1f492b051e03..a9e0d1698a91 100644
--- a/contrib/llvm-project/clang/lib/AST/ASTStructuralEquivalence.cpp
+++ b/contrib/llvm-project/clang/lib/AST/ASTStructuralEquivalence.cpp
@@ -1463,8 +1463,9 @@ IsStructurallyEquivalentLambdas(StructuralEquivalenceContext &Context,
 }
 
 /// Determine if context of a class is equivalent.
-static bool IsRecordContextStructurallyEquivalent(RecordDecl *D1,
-                                                  RecordDecl *D2) {
+static bool
+IsRecordContextStructurallyEquivalent(StructuralEquivalenceContext &Context,
+                                      RecordDecl *D1, RecordDecl *D2) {
   // The context should be completely equal, including anonymous and inline
   // namespaces.
   // We compare objects as part of full translation units, not subtrees of
@@ -1491,6 +1492,12 @@ static bool IsRecordContextStructurallyEquivalent(RecordDecl *D1,
         return false;
     }
 
+    if (auto *D1Spec = dyn_cast<ClassTemplateSpecializationDecl>(DC1)) {
+      auto *D2Spec = dyn_cast<ClassTemplateSpecializationDecl>(DC2);
+      if (!IsStructurallyEquivalent(Context, D1Spec, D2Spec))
+        return false;
+    }
+
     DC1 = DC1->getParent()->getNonTransparentContext();
     DC2 = DC2->getParent()->getNonTransparentContext();
   }
@@ -1544,7 +1551,7 @@ static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
   // If the records occur in different context (namespace), these should be
   // different. This is specially important if the definition of one or both
   // records is missing.
-  if (!IsRecordContextStructurallyEquivalent(D1, D2))
+  if (!IsRecordContextStructurallyEquivalent(Context, D1, D2))
     return false;
 
   // If both declarations are class template specializations, we know