namespace Cosmos.IL2CPU
{
    internal static class Optimizer
    {
        public static Assembler.Assembler Optimize(Assembler.Assembler asmb)
        {
            return asmb;
            //Assembler asmblr = asmb;
            //List<Instruction> instr = asmb.Instructions;
            ////List<DataMember> dmbrs = asmb.DataMembers;

            //SortedDictionary<string, Instruction> labels = new SortedDictionary<string, Instruction>();
            //List<Instruction> comments = new List<Instruction>();
            //List<String> usedLabels = new List<string>();
            //usedLabels.Add("KernelStart");
            //foreach (Instruction ins in instr) {
            //  if (ins is Label) {
            //    if (((Label)ins).IsGlobal) {
            //      usedLabels.Add(((Label)ins).QualifiedName);
            //    }
            //    labels.Add(((Label)ins).QualifiedName, ins);
            //  } else if (ins is x86.JumpToSegment) {
            //    if (((x86.JumpToSegment)ins).DestinationRef != null) {
            //      usedLabels.Add(((x86.JumpToSegment)ins).DestinationRef.Name);
            //    } else {
            //      usedLabels.Add(((x86.JumpToSegment)ins).DestinationLabel);
            //    }
            //  } else if (ins is x86.JumpBase) {
            //    usedLabels.Add(((x86.JumpBase)ins).DestinationLabel);
            //  } else if (ins is x86.Call) {
            //    usedLabels.Add(((x86.Call)ins).DestinationLabel);
            //  } else if (ins is x86.Push) {
            //    if (((x86.Push)ins).DestinationRef != null) {
            //      usedLabels.Add(((x86.Push)ins).DestinationRef.Name);
            //    }
            //  } else if (ins is x86.Mov) {
            //    if (((x86.Mov)ins).SourceRef != null) {
            //      usedLabels.Add(((x86.Mov)ins).SourceRef.Name);
            //    }
            //  }
            //}
            //foreach (string s in usedLabels) {
            //  labels.Remove(s);
            //}
            //usedLabels = null;
            //instr.RemoveAll(
            //    delegate(Instruction inst) {
            //      if (inst is Comment)
            //        return true;
            //      else if (inst is Label) {
            //        if (labels.ContainsKey(((Label)inst).QualifiedName))
            //          return true;
            //        return false;
            //      }
            //      return false;
            //    }
            //);
            //labels = null;
            //comments = null;




            //asmblr.Instructions = instr;
            ////asmblr.DataMembers = dmbrs;
            //return asmblr;

        }

    }
}