llvm::to_vector(op.getBroadcastDimensions());

    while (input_dims.size() < output_rank) {
      int32_t dim_to_expand = 0;
      for (int32_t i = 0; i < output_rank; ++i) {
        if (!llvm::is_contained(input_dims, i)) {
          dim_to_expand = i;
          break;
        }
      }

      TensorType dim_type = input_type.cloneWith({static_cast<int64_t>(1)},

    }
  }

  // If strides are constants, verify that none of the element is zero.
  DenseIntElementsAttr strides;
  if (matchPattern(op.getStrides(), m_Constant(&strides))) {
    if (llvm::is_contained(strides.getValues<APInt>(), 0))
      return op.emitOpError("requires non-zero strides");
  }

  // Use bit compares to ensure ellipsis_mask is 0 or a power of 2, i.e. there