[llvm] Fix maybe unused variable in 1a036732d210 (PR #169542)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-nvptx

Author: Walter Lee (googlewalt)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/169542.diff


1 Files Affected:

- (modified) llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp (+1-1) 


``````````diff
diff --git a/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp b/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
index f3a3bc785d997..8b72b1e1f3a52 100644
--- a/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
+++ b/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
@@ -3457,7 +3457,7 @@ convertMLOADToLoadWithUsedBytesMask(MemSDNode *N, SelectionDAG &DAG) {
   SDValue Chain = N->getOperand(0);
   SDValue BasePtr = N->getOperand(1);
   SDValue Mask = N->getOperand(3);
-  SDValue Passthru = N->getOperand(4);
+  [[maybe_unused]] SDValue Passthru = N->getOperand(4);
 
   SDLoc DL(N);
   EVT ResVT = N->getValueType(0);

``````````

</details>


https://github.com/llvm/llvm-project/pull/169542