How to use

BranchProfile

in

com.oracle.truffle.api.utilities

public static BranchProfile create() {
  return new BranchProfile();
}

@Override
public void executeVoid(VirtualFrame frame) {
  final boolean condition;
  try {
    condition = conditionNode.executeBoolean(frame);
  } catch (UnexpectedResultException e) {
    // TODO
    throw new UnsupportedOperationException(e);
  }
  if (CompilerDirectives.injectBranchProbability(getBranchProbability(), condition)) {
    if (CompilerDirectives.inInterpreter()) {
      thenCount++;
    }
    thenProfile.enter();
    thenPartNode.executeVoid(frame);
  } else {
    if (CompilerDirectives.inInterpreter()) {
      elseCount++;
    }
    elseProfile.enter();
    elsePartNode.executeVoid(frame);
  }
}