Try to fix unused variable warning on lld-x86_64-darwin13 after r287439.

Whether the variable is used or not depends on NDEBUG.

llvm-svn: 287440

1 files changed, 2 insertions, 1 deletions

diff --git a/llvm/lib/Target/BPF/MCTargetDesc/BPFMCCodeEmitter.cpp b/llvm/lib/Target/BPF/MCTargetDesc/BPFMCCodeEmitter.cpp
index 47f16512a39..91a457d28a5 100644
--- a/llvm/lib/Target/BPF/MCTargetDesc/BPFMCCodeEmitter.cpp
+++ b/llvm/lib/Target/BPF/MCTargetDesc/BPFMCCodeEmitter.cpp
@@ -20,6 +20,7 @@
 #include "llvm/MC/MCSubtargetInfo.h"
 #include "llvm/MC/MCSymbol.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/Support/Compiler.h"
 #include "llvm/Support/EndianStream.h"
 #include "llvm/Support/raw_ostream.h"
 using namespace llvm;
@@ -30,7 +31,7 @@ namespace {
 class BPFMCCodeEmitter : public MCCodeEmitter {
   BPFMCCodeEmitter(const BPFMCCodeEmitter &) = delete;
   void operator=(const BPFMCCodeEmitter &) = delete;
-  const MCInstrInfo &MCII;
+  const MCInstrInfo &MCII LLVM_ATTRIBUTE_UNUSED; // Unused in NDEBUG builds.
   const MCRegisterInfo &MRI;
   bool IsLittleEndian;