[NFC] Declare the member data of class PostGenericScheduler as "protected" instead of "private"

Some target might try to subclass the PostGenericScheduler to custom the scheduling strategy.
We need to declare the member data of PostGenericScheduler as "protected", which acts the same as "GenericScheduler".

Differential Revision: https://reviews.llvm.org/D58949

llvm-svn: 355475

1 files changed, 1 insertions, 0 deletions

diff --git a/llvm/include/llvm/CodeGen/MachineScheduler.h b/llvm/include/llvm/CodeGen/MachineScheduler.h
index 70579987702..692335fc7a6 100644
--- a/llvm/include/llvm/CodeGen/MachineScheduler.h
+++ b/llvm/include/llvm/CodeGen/MachineScheduler.h
@@ -1014,6 +1014,7 @@ protected:
 /// Callbacks from ScheduleDAGMI:
 ///   initPolicy -> initialize(DAG) -> registerRoots -> pickNode ...
 class PostGenericScheduler : public GenericSchedulerBase {
+protected:
   ScheduleDAGMI *DAG;
   SchedBoundary Top;
   SmallVector<SUnit*, 8> BotRoots;