change this back too

llvm-svn: 100310
diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 096bf91..9294647 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -101,7 +101,7 @@
 }
 
 bool AsmPrinter::doInitialization(Module &M) {
-  MMI = &getAnalysis<MachineModuleInfo>();
+  MMI = getAnalysisIfAvailable<MachineModuleInfo>();
   MMI->AnalyzeModule(M);
 
   // Initialize TargetLoweringObjectFile.