This needs the callgraph data structure to stick around as long as the

printer does.

llvm-svn: 32236

llvm/tools/opt/AnalysisWrappers.cpp

@@ -67,7 +67,7 @@ namespace {
   struct CallGraphPrinter : public ModulePass {
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.setPreservesAll();
-      AU.addRequired<CallGraph>();
+      AU.addRequiredTransitive<CallGraph>();
     }
     virtual bool runOnModule(Module &M) { return false; }