Fix MSVC "not all control paths return a value" warning. NFCI.

llvm-svn: 373100

diff --git a/llvm/tools/llvm-exegesis/lib/SnippetRepetitor.cpp b/llvm/tools/llvm-exegesis/lib/SnippetRepetitor.cpp
index 551ee53..9544716 100644 (file)
--- a/llvm/tools/llvm-exegesis/lib/SnippetRepetitor.cpp
+++ b/llvm/tools/llvm-exegesis/lib/SnippetRepetitor.cpp
@@ -110,6 +110,7 @@ SnippetRepetitor::Create(InstructionBenchmark::RepetitionModeE Mode,
   case InstructionBenchmark::Loop:
     return std::make_unique<LoopSnippetRepetitor>(State);
   }
+  llvm_unreachable("Unknown RepetitionModeE enum");
 }
 
 } // namespace exegesis