Stub out a PostMachineScheduler pass.

Placeholder and boilerplate for a PostRA MachineScheduler pass.

llvm-svn: 198120
diff --git a/llvm/lib/CodeGen/CodeGen.cpp b/llvm/lib/CodeGen/CodeGen.cpp
index 30b40a1..368e7d4 100644
--- a/llvm/lib/CodeGen/CodeGen.cpp
+++ b/llvm/lib/CodeGen/CodeGen.cpp
@@ -51,6 +51,7 @@
   initializeOptimizePHIsPass(Registry);
   initializePHIEliminationPass(Registry);
   initializePeepholeOptimizerPass(Registry);
+  initializePostMachineSchedulerPass(Registry);
   initializePostRASchedulerPass(Registry);
   initializeProcessImplicitDefsPass(Registry);
   initializePEIPass(Registry);