1 files changed, 9 insertions, 1 deletions
diff --git a/lib/Transforms/Utils/LowerInvoke.cpp b/lib/Transforms/Utils/LowerInvoke.cpp
index be706c3ef8..f7cb65c262 100644
--- a/lib/Transforms/Utils/LowerInvoke.cpp
+++ b/lib/Transforms/Utils/LowerInvoke.cpp
@@ -71,7 +71,15 @@ namespace {
       JumpBufAlign(Align) {}
     bool doInitialization(Module &M);
     bool runOnFunction(Function &F);
-    
+ 
+    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      // This is a cluster of orthogonal Transforms	
+      AU.addPreservedID(PromoteMemoryToRegisterID);
+      AU.addPreservedID(LowerSelectID);
+      AU.addPreservedID(LowerSwitchID);
+      AU.addPreservedID(LowerAllocationsID);
+    }
+       
   private:
     void createAbortMessage();
     void writeAbortMessage(Instruction *IB);