Eliminate PromoteMemoryToRegisterID; just use addPreserved("mem2reg")

instead, as an example of what this looks like.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110478 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Utils/LowerSwitch.cpp

@@ -41,7 +41,7 @@ namespace {
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       // This is a cluster of orthogonal Transforms
       AU.addPreserved<UnifyFunctionExitNodes>();
-      AU.addPreservedID(PromoteMemoryToRegisterID);
+      AU.addPreserved("mem2reg");
       AU.addPreservedID(LowerInvokePassID);
     }