[clang] [CIR] Implement Statement Expressions (PR #153677)

[Henrich Lauko via cfe-commits]

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@@ -1178,11 +1178,11 @@ static void pushTemporaryCleanup(CIRGenFunction &cgf,
                                         ->getBaseElementTypeUnsafe()
                                         ->getAs<clang::RecordType>()) {
     // Get the destructor for the reference temporary.
-    auto *classDecl =
-        cast<CXXRecordDecl>(rt->getOriginalDecl()->getDefinitionOrSelf());
-    if (!classDecl->hasTrivialDestructor())
-      referenceTemporaryDtor =
-          classDecl->getDefinitionOrSelf()->getDestructor();
+    if (const auto *classDecl = dyn_cast<CXXRecordDecl>(
+            rt->getOriginalDecl()->getDefinitionOrSelf())) {
+      if (!classDecl->hasTrivialDestructor())
+        referenceTemporaryDtor = classDecl->getDestructor();
----------------
xlauko wrote:

Why does this differ to traditional codegen, i.e. https://github.com/llvm/llvm-project/blob/0e52092ff7c1e1a1283fe8c232dd221a170e3fdc/clang/lib/CodeGen/CGExpr.cpp#L407

where this is in switch below with slightly different implementation.



https://github.com/llvm/llvm-project/pull/153677