[Bug tree-optimization/67476] Add --param parloops-schedule=

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67476

--- Comment #6 from vries at gcc dot gnu.org ---
Updated patch series:
- https://gcc.gnu.org/ml/gcc-patches/2015-09/msg00938.html
- https://gcc.gnu.org/ml/gcc-patches/2015-09/msg00940.html