diff --git a/mlir/lib/Transforms/Utils/LoopUtils.cpp b/mlir/lib/Transforms/Utils/LoopUtils.cpp
index d05a02dee0c0a6190428139b0e0c799ca6f858b9..9b02bcd19377c63ffa4de2e0883dee4857ab9ee0 100644
--- a/mlir/lib/Transforms/Utils/LoopUtils.cpp
+++ b/mlir/lib/Transforms/Utils/LoopUtils.cpp
@@ -2142,6 +2142,7 @@ static AffineIfOp createSeparationCondition(MutableArrayRef<AffineForOp> loops,
   // larger (and resp. smaller) than any other lower (or upper bound).
   SmallVector<int64_t, 8> fullTileLb, fullTileUb;
   for (auto loop : loops) {
+    (void) loop;
     // TODO: Non-unit stride is not an issue to generalize to.
     assert(loop.getStep() == 1 && "point loop step expected to be one");
     // Mark everything symbols for the purpose of finding a constant diff pair.