1  /* Check that for dynamic logical right shifts with a constant the negated
       2     constant is loaded directly, instead of loading the postitive constant
       3     and negating it separately.  This was a case that happened at optimization
       4     level -O2 and looked like:
       5  	cmp/eq	r6,r5
       6  	mov	#30,r1
       7  	neg	r1,r1
       8  	shld	r1,r4
       9  	mov	r4,r0
      10  	rts
      11  	rotcr	r0  */
      12  /* { dg-do compile { target { has_dyn_shift } } }  */
      13  /* { dg-options "-O2" } */
      14  /* { dg-final { scan-assembler-not "neg" } } */
      15  
      16  unsigned int
      17  test (unsigned int a, int b, int c)
      18  {
      19    unsigned char r = b == c;
      20    return ((a >> 31) | (r << 31));
      21  }