[AArch64] Silence an unused variable warning in Release builds. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306738 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/AArch64/AArch64CondBrTuning.cpp b/lib/Target/AArch64/AArch64CondBrTuning.cpp
index 13bcbe4304bf171296d827089d61fe79bc3ecc51..0a948812ff3370ccbdc6373a03b5f951a126bdd7 100644 (file)
--- a/lib/Target/AArch64/AArch64CondBrTuning.cpp
+++ b/lib/Target/AArch64/AArch64CondBrTuning.cpp
@@ -271,6 +271,7 @@ bool AArch64CondBrTuning::tryToTuneBranch(MachineInstr &MI,
     }
     break;
   }
+  (void)NewCmp; (void)NewBr;
   assert(NewCmp && NewBr && "Expected new instructions.");
 
   DEBUG(dbgs() << "  with instruction:\n    ");