The commit:
commit b49371b8ed
Author: Connor Abbott <cwabbott0@gmail.com>
AuthorDate: Tue Jul 21 19:54:18 2015 -0700
nir: move control flow modification to its own file
split out some control flow related APIs into a separate header, but did
not update drivers.
Signed-off-by: Rob Clark <robclark@freedesktop.org>