lib/Analysis/UninitializedValues.cpp

596               UninitUse::Branch Branch;
597               Branch.Terminator = Label;
598               Branch.Output = 0; // Ignored.
599               Use.addUninitBranch(Branch);
601               UninitUse::Branch Branch;
602               Branch.Terminator = Term;
603               Branch.Output = I - Block->succ_begin();
604               Use.addUninitBranch(Branch);