Fix extraneous allocation and copying

With breaks being allocated the way it was, there were 16 ints with
value 0 being stored in the beginning of the vector. Because of the way
the rest of the code is structured, this did not result in incorrect
operation, but it still wasted time and memory.

Change-Id: Ic0df3e5484417da51f2465ec2d72222fefffc18a