[NFC] Fix unused variable warnings in Release builds

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351641 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/IR/MDBuilder.cpp b/lib/IR/MDBuilder.cpp
index 674cff6f1353a8921e9ff61c88863d87e997ee40..f65ac31ca5ae7144435aaae5dd78e7694addaaed 100644 (file)
--- a/lib/IR/MDBuilder.cpp
+++ b/lib/IR/MDBuilder.cpp
@@ -131,6 +131,7 @@ MDNode *MDBuilder::mergeCallbackEncodings(MDNode *ExistingCallbacks,
   auto *NewCBCalleeIdxAsCM = cast<ConstantAsMetadata>(NewCB->getOperand(0));
   uint64_t NewCBCalleeIdx =
       cast<ConstantInt>(NewCBCalleeIdxAsCM->getValue())->getZExtValue();
+  (void)NewCBCalleeIdx;
 
   SmallVector<Metadata *, 4> Ops;
   unsigned NumExistingOps = ExistingCallbacks->getNumOperands();
@@ -142,6 +143,7 @@ MDNode *MDBuilder::mergeCallbackEncodings(MDNode *ExistingCallbacks,
     auto *OldCBCalleeIdxAsCM = cast<ConstantAsMetadata>(Ops[u]);
     uint64_t OldCBCalleeIdx =
       cast<ConstantInt>(OldCBCalleeIdxAsCM->getValue())->getZExtValue();
+    (void)OldCBCalleeIdx;
     assert(NewCBCalleeIdx != OldCBCalleeIdx &&
            "Cannot map a callback callee index twice!");
   }