src/third_party/llvm-project/clang/test/CodeGen/2002-04-09-StructRetVal.c

// RUN: %clang_cc1 -emit-llvm %s  -o /dev/null

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

struct S func_returning_struct(void);

void loop(void) {
  func_returning_struct();
}