diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index fd7e7734ad6..e9a507088a6 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -771,7 +771,6 @@ static int MatchCoprocessorOperandName(StringRef Name, char CoprocOp) {
     break;
   }
 
-  llvm_unreachable("Unhandled coprocessor operand string!");
   return -1;
 }