// into the convolution op by constant folding
// the filter/bias and the div/mul op's constant operand.
// The following pattern restricts to float constant values for now.

multiclass FuseMulOrDivWithConv2dOrDepthwiseConv2d<Op BinaryOp> {
  def FuseMulOrDivWithDepthwiseConv#BinaryOp : Pat<
    (BinaryOp (TFL_DepthwiseConv2DOp:$output $input,
                (Arith_ConstantOp FloatElementsAttr:$filter),

  if (getFusedActivationFunction() != "NONE") return {};

  // This function is performance critical for op fusion patterns, e.g.
  // FuseBinaryOpToPrecedingAffine and FuseMulOrDivWithConv2dOrDepthwiseConv2d.
  // So a few specializations are provided to evaluate the math operation
  // more efficiently.

  // Specialization for f32 type.
  if (getType().cast<ShapedType>().getElementType().isF32()) {