1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -mno-sse2" } */
       3  
       4  __bf16/* { dg-error "unknown type name '__bf16'" } */
       5  foo (__bf16 x) /* { dg-error "unknown type name '__bf16'" } */
       6  {
       7    return x;
       8  }