Every pass deserves a name, even codegenprep.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170831 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/CodeGenPrepare.cpp b/lib/Transforms/Scalar/CodeGenPrepare.cpp
index c490705..b8900ac 100644
--- a/lib/Transforms/Scalar/CodeGenPrepare.cpp
+++ b/lib/Transforms/Scalar/CodeGenPrepare.cpp
@@ -106,6 +106,8 @@
       }
     bool runOnFunction(Function &F);
 
+    const char *getPassName() const { return "CodeGen Prepare"; }
+
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.addPreserved<DominatorTree>();
       AU.addPreserved<ProfileInfo>();