test/Regression/CFrontend/2002-04-09-StructRetVal.c - llvm-project/llvm - Git at Google

 struct S {
   int i;
   short s1, s2;
 };

 struct S func_returning_struct(void);

 void loop(void) {
   func_returning_struct();
 }
	struct S {
	int i;
	short s1, s2;
	};

	struct S func_returning_struct(void);

	void loop(void) {
	func_returning_struct();
	}