private boolean tryMapReg(RegisterSpec ssaSpec,int ropReg,int maxAllowedCategory){
  if (ssaSpec.getCategory() <= maxAllowedCategory && !ssaRegsMapped.get(ssaSpec.getReg()) && canMapReg(ssaSpec,ropReg)) {
    addMapping(ssaSpec,ropReg);
    return true;
  }
  return false;
}

private boolean tryMapReg ( RegisterSpec ssaSpec , int ropReg , int maxAllowedCategory ) { if ( ssaSpec . getCategory ( ) <= maxAllowedCategory && ! ssaRegsMapped . get ( ssaSpec . getReg ( ) ) && canMapReg ( ssaSpec , ropReg ) ) { addMapping ( ssaSpec , ropReg ) ; return true ; } return false ; }
tries to map an ssa register to a rop register .
