diff --git a/lib/Analysis/BasicAliasAnalysis.cpp b/lib/Analysis/BasicAliasAnalysis.cpp
index daa3c9a..59839e8 100644
--- a/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/lib/Analysis/BasicAliasAnalysis.cpp
@@ -158,7 +158,7 @@
 
     virtual void getArgumentAccesses(Function *F, CallSite CS,
                                      std::vector<PointerAccessInfo> &Info) {
-      LLVM_UNREACHABLE("This method may not be called on this function!");
+      llvm_unreachable("This method may not be called on this function!");
     }
 
     virtual void getMustAliases(Value *P, std::vector<Value*> &RetVals) { }