}

    // The filter of the convolution may have a `ConvertOp` after the constant
    // op.
    Operation* filter_op = op.getOperand(1).getDefiningOp();
    if (!isa<stablehlo::ConstantOp>(filter_op) &&
        !(isa<stablehlo::ConvertOp>(filter_op) &&
          isa<stablehlo::ConstantOp>(
              filter_op->getOperand(0).getDefiningOp()))) {
      LLVM_DEBUG(llvm::dbgs() << "Failed to match filter_constant_op.\n");