Matthias Braun 1b54aa5879 LiveRegUnits: Rename accumulateBackward()->accumulate()
Contrary to the stepForward()/stepBackward() method accumulate() doesn't
have a direction as defs, uses and clobbers all have the same effect.

Also improve the documentation comment.

llvm-svn: 307351
2017-07-07 03:02:17 +00:00
..
2017-07-06 14:17:36 +00:00