1  /* { dg-do compile }  */
       2  /* { dg-options "-mh -O2 -fomit-frame-pointer" }  */
       3  /* { dg-final { scan-assembler-times "extu" 1 } }  */
       4  
       5  unsigned long foo(unsigned long a)
       6    { return (a << 4) & 0xffff; }
       7