Add branch relaxation pass (shamelessly stolen from PPC).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93554 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/MSP430/MSP430.h b/lib/Target/MSP430/MSP430.h
index 1ff178d..e742118 100644
--- a/lib/Target/MSP430/MSP430.h
+++ b/lib/Target/MSP430/MSP430.h
@@ -39,6 +39,8 @@
   FunctionPass *createMSP430ISelDag(MSP430TargetMachine &TM,
                                     CodeGenOpt::Level OptLevel);
 
+  FunctionPass *createMSP430BranchSelectionPass();
+
   extern Target TheMSP430Target;
 
 } // end namespace llvm;