Add std::move in UniformSupport.

Fixes build warnings on clang-8, no warnings on redundant moves on
gcc-(6.5,7.4,8.3).

Closes tensorflow/mlir#41

PiperOrigin-RevId: 260764269

diff --git a/mlir/include/mlir/Dialect/QuantOps/UniformSupport.h b/mlir/include/mlir/Dialect/QuantOps/UniformSupport.h
index c8d818d..5d11c76 100644 (file)
--- a/mlir/include/mlir/Dialect/QuantOps/UniformSupport.h
+++ b/mlir/include/mlir/Dialect/QuantOps/UniformSupport.h
@@ -94,7 +94,7 @@ public:
     llvm::APSInt result(storageBitWidth, !isSigned);
     fixedpoint.convertToInteger(result, APFloat::rmNearestTiesToEven, &lossy);
 
-    return result;
+    return std::move(result);
   }
 
   int64_t quantizeFloatToInt64(APFloat expressedValue) const {