private final static void prependDecrement(OPT_BasicBlock bb,
private final void prependDecrement(OPT_BasicBlock bb,
  private final static void prependDecrement(OPT_BasicBlock bb,                                                OPT_IR ir) {    if (DEBUG)VM.sysWrite("Adding Increment to "+ bb + "\n");    OPT_RegisterOperand use = cbsReg.copyRO();    OPT_RegisterOperand def = use.copyU2D();    OPT_Instruction inc = Binary.create(INT_ADD,                                        def,use,                                         OPT_IRTools.IC(-1));    bb.prependInstruction(inc);  }