src/hotspot/cpu/s390/c1_LIRGenerator_s390.cpp

*** 225,240 ****
  
  bool LIRGenerator::strength_reduce_multiply(LIR_Opr left, int c, LIR_Opr result, LIR_Opr tmp) {
    if (tmp->is_valid()) {
      if (is_power_of_2(c + 1)) {
        __ move(left, tmp);
!       __ shift_left(left, log2_intptr(c + 1), left);
        __ sub(left, tmp, result);
        return true;
      } else if (is_power_of_2(c - 1)) {
        __ move(left, tmp);
!       __ shift_left(left, log2_intptr(c - 1), left);
        __ add(left, tmp, result);
        return true;
      }
    }
    return false;
--- 225,240 ----
  
  bool LIRGenerator::strength_reduce_multiply(LIR_Opr left, int c, LIR_Opr result, LIR_Opr tmp) {
    if (tmp->is_valid()) {
      if (is_power_of_2(c + 1)) {
        __ move(left, tmp);
!       __ shift_left(left, log2_int(c + 1), left);
        __ sub(left, tmp, result);
        return true;
      } else if (is_power_of_2(c - 1)) {
        __ move(left, tmp);
!       __ shift_left(left, log2_int(c - 1), left);
        __ add(left, tmp, result);
        return true;
      }
    }
    return false;