if (VM.VerifyAssertions) VM.assert(isTwoWayBranch());
if (VM.VerifyAssertions) VM._assert(isTwoWayBranch());
  void setBranchProbability(float takenProbability) {    if (VM.VerifyAssertions) VM.assert(isTwoWayBranch());    BranchProfileCarrier.getBranchProfile(this).takenProbability =       takenProbability;  } 