1. An apparatus for collapsing a set of operands, comprising: a post-decode unit which: upon decoding one of a set of instructions that modifies its zero flag when executed, records information in a first entry about a set of operands for that particular one of the set of instructions; upon decoding one of a set of instructions that is at least one of a branch if equal and predicted as taken and a branch if not equal and predicted as not taken, copies the recorded information in the first entry to one of a set of second entries; and translates the set of operands for each one of a set of instructions if information is recorded about the set of operands in one of the set of second entries and that recorded information is valid.