1 files changed, 32 insertions, 0 deletions
diff --git a/clang/test/CIR/CodeGen/empty.cpp b/clang/test/CIR/CodeGen/empty.cpp
new file mode 100644
index 0000000..378ae21
--- /dev/null
+++ b/clang/test/CIR/CodeGen/empty.cpp
@@ -0,0 +1,32 @@
+// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir
+// RUN: FileCheck --input-file=%t.cir %s --check-prefix=CIR
+
+// These declarations shouldn't emit any code. Therefore the module is expected to be empty.
+
+template<typename T>
+concept some_concept = true;
+
+template<some_concept T>
+class class_template {};
+
+; // Empty declaration
+
+template<typename T>
+void function_template();
+
+static_assert(true, "top level static assert");
+
+template<typename T>
+using type_alias = T;
+
+namespace N {
+    using ::class_template; // UsingShadow
+}
+
+template<typename T>
+struct deduction_guide {};
+
+deduction_guide() -> deduction_guide<int>;
+
+// CIR: module {{.*}} {
+// CIR-NEXT: }