AMDGPU: Mark scheduler classes as final

llvm-svn: 360294
diff --git a/llvm/lib/Target/AMDGPU/GCNSchedStrategy.h b/llvm/lib/Target/AMDGPU/GCNSchedStrategy.h
index b075edf..b425fd1 100644
--- a/llvm/lib/Target/AMDGPU/GCNSchedStrategy.h
+++ b/llvm/lib/Target/AMDGPU/GCNSchedStrategy.h
@@ -26,7 +26,7 @@
 /// and the GenericScheduler is that GCNSchedStrategy uses different
 /// heuristics to determine excess/critical pressure sets.  Its goal is to
 /// maximize kernel occupancy (i.e. maximum number of waves per simd).
-class GCNMaxOccupancySchedStrategy : public GenericScheduler {
+class GCNMaxOccupancySchedStrategy final : public GenericScheduler {
   friend class GCNScheduleDAGMILive;
 
   SUnit *pickNodeBidirectional(bool &IsTopNode);
@@ -59,7 +59,7 @@
   void setTargetOccupancy(unsigned Occ) { TargetOccupancy = Occ; }
 };
 
-class GCNScheduleDAGMILive : public ScheduleDAGMILive {
+class GCNScheduleDAGMILive final : public ScheduleDAGMILive {
 
   const GCNSubtarget &ST;