Remove unused variable. NFC.

diff --git a/mlir/lib/Conversion/LoopsToGPU/LoopsToGPU.cpp b/mlir/lib/Conversion/LoopsToGPU/LoopsToGPU.cpp
index 04d5381..c789c90 100644 (file)
--- a/mlir/lib/Conversion/LoopsToGPU/LoopsToGPU.cpp
+++ b/mlir/lib/Conversion/LoopsToGPU/LoopsToGPU.cpp
@@ -136,7 +136,6 @@ static LogicalResult checkLoopNestMappable(OpTy forOp, unsigned numBlockDims,
     return success();
   }
 
-  OpBuilder builder(forOp.getOperation());
   if (numBlockDims > 3) {
     return forOp.emitError("cannot map to more than 3 block dimensions");
   }