Index: llvm/trunk/tools/llvm-exegesis/llvm-exegesis.cpp
===================================================================
--- llvm/trunk/tools/llvm-exegesis/llvm-exegesis.cpp
+++ llvm/trunk/tools/llvm-exegesis/llvm-exegesis.cpp
@@ -148,7 +148,7 @@
   std::vector<InstructionBenchmark> Results = ExitOnErr(Runner->run(
       GetOpcodeOrDie(State.getInstrInfo()), Filter, NumRepetitions));
   for (InstructionBenchmark &Result : Results)
-    Result.writeYaml(Context, BenchmarkFile);
+    ExitOnErr(Result.writeYaml(Context, BenchmarkFile));
 
   exegesis::pfm::pfmTerminate();
 }