1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -march=skylake -mno-sse" } */
       3  /* { dg-final { scan-assembler "rep stosb" } } */
       4  
       5  void
       6  foo (char *dest)
       7  {
       8    __builtin_memset (dest, 0, 256);
       9  }