rewriter.getIntegerType(1)),
        in_bounds, GetI64ElementsAttr(broadcast_bounds, &rewriter));
    Value b_padding = rewriter.create<BroadcastOp>(
        loc, op.getPaddingValue(), GetI64ElementsAttr(output_shape, &rewriter));

    // Replace all out-of-bounds values in the result with padding_value.
    Value result =
        rewriter.create<SelectOp>(loc, b_in_bounds, gather, b_padding);