diff --git a/include/llvm/Target/TargetInstrInfo.h b/include/llvm/Target/TargetInstrInfo.h
index 3ae68fa3e26..4fa1f4c346c 100644
--- a/include/llvm/Target/TargetInstrInfo.h
+++ b/include/llvm/Target/TargetInstrInfo.h
@@ -167,6 +167,8 @@ public:
   virtual MachineBasicBlock::iterator
   reverseBranchCondition(MachineBasicBlock::iterator MI) const {
     assert(0 && "Target didn't implement reverseBranchCondition!");
+    abort();
+    return MI;
   }
 
   //-------------------------------------------------------------------------