LSR cleanup patch


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20422 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Alpha/AlphaTargetMachine.cpp b/lib/Target/Alpha/AlphaTargetMachine.cpp
index 80a8866..7bc4852 100644
--- a/lib/Target/Alpha/AlphaTargetMachine.cpp
+++ b/lib/Target/Alpha/AlphaTargetMachine.cpp
@@ -60,8 +60,10 @@
 bool AlphaTargetMachine::addPassesToEmitAssembly(PassManager &PM,
                                                    std::ostream &Out) {
   
-  if (EnableAlphaLSR)
+  if (EnableAlphaLSR) {
     PM.add(createLoopStrengthReducePass());
+    PM.add(createCFGSimplificationPass());
+  }
 
   // FIXME: Implement efficient support for garbage collection intrinsics.
   PM.add(createLowerGCPass());