burs.append(MIR_Unary.create(op, def, left)); burs.append(MIR_CondBranch.mutate(s, PPC_BCOND, CR(0), new OPT_PowerPCConditionOperand(cond), IfCmp.getTarget(s), IfCmp.getBranchProfile(s))); }
  void CMP_ZERO(OPT_BURS burs, OPT_Instruction s, OPT_Operator op, 		OPT_RegisterOperand def, OPT_Operand left,		OPT_ConditionOperand cond) {    if (VM.VerifyAssertions) VM.assert(!cond.isUNSIGNED());    if (!def.register.spansBasicBlock()) {      def.register = burs.ir.regpool.getPhysicalRegisterSet().getTemp();    }