1  /* { dg-do compile } */
       2  /* { dg-options " -fdump-rtl-all-slim -mavx -mvzeroupper -fexpensive-optimizations" } */
       3  
       4  int
       5  foo (void)
       6  {
       7    return 0;
       8  }
       9  
      10  /* { dg-final { scan-rtl-dump-not "\\(insn " "vzeroupper" } }  */