// CHECK: %[[CONV:.*]] = stablehlo.convolution(%arg0, %arg1)
// CHECK: %[[SHAPE_OF_0:.*]] = shape.shape_of %[[CONV]]
// CHECK: %[[DYNAMIC_BROADCAST_IN_DIM_0:.*]] = stablehlo.dynamic_broadcast_in_dim %arg2, %[[SHAPE_OF_0]]
// CHECK: %[[ADD:.*]] = stablehlo.add %[[CONV]], %[[DYNAMIC_BROADCAST_IN_DIM_0]]
// CHECK: %[[SHAPE_OF_1:.*]] = shape.shape_of %[[ADD]]
// CHECK-DAG: %[[CONST:.*]] = stablehlo.constant dense<0.000000e+00>

  // CHECK-DAG:  %[[CSTR_LHS_SHAPE:.+]] = shape.shape_of %arg0
  // CHECK-DAG:  %[[CSTR_RHS_SHAPE:.+]] = shape.shape_of %arg1
  // CHECK-NEXT: %[[WITNESS:.+]] = shape.cstr_broadcastable %[[CSTR_LHS_SHAPE]], %[[CSTR_RHS_SHAPE]]
  // CHECK-NEXT: shape.assuming %[[WITNESS:.+]]
  // CHECK-DAG:    %[[LHS_SHAPE:.+]] = shape.shape_of %arg0
  // CHECK-DAG:    %[[RHS_SHAPE:.+]] = shape.shape_of %arg1

// CHECK-LABEL:   func @batchmatmulv2_basic
// CHECK-SAME:        ([[LHS:%.*]]: tensor<1x4x2xf32>, [[RHS:%.*]]: tensor<3x2x4xf32>) -> tensor<3x4x4xf32>
// CHECK:           [[LHSSHAPE:%.*]] = shape.shape_of [[LHS]] : tensor<1x4x2xf32>
// CHECK:           [[RHSSHAPE:%.*]] = shape.shape_of [[RHS]] : tensor<3x2x4xf32>
// CHECK:           [[CM2:%.*]] = arith.constant -2 : index
// CHECK:           [[LHSHEAD:%.*]], [[LHSTAIL:%.*]] = "shape.split_at"([[LHSSHAPE]], [[CM2]])

// CHECK-DAG: %[[SHAPE_OF:.*]] = shape.shape_of %[[CONV]] : tensor<?x3x2x2xf32> -> tensor<4xindex>
// CHECK-DAG: %[[BROADCAST:.*]] = stablehlo.dynamic_broadcast_in_dim %[[CONST_0]], %[[SHAPE_OF]], dims = [3] : (tensor<2xf32>, tensor<4xindex>) -> tensor<?x3x2x2xf32>

  // CHECK: %[[SHAPE:.+]] = shape.shape_of %[[CONV]] : tensor<?x256x256x2xf32> -> tensor<4xindex>

    %mean: tensor<?xf32>, %variance: tensor<?xf32>)
    -> tensor<?x?x?x?xf32> {
  // CHECK-DAG: %[[EPS:.+]] = mhlo.constant dense<1.000000e-03> : tensor<f32>
  // CHECK-DAG: %[[VAR_SHAPE:.+]] = shape.shape_of %[[VARIANCE]] : tensor<?xf32> -> tensor<1xindex>

  // CHECK-DAG: %[[SHAPEOF:.+]] = shape.shape_of %arg0
  // CHECK-DAG: %[[CST0:.+]] = arith.constant 0
  // CHECK-DAG: %[[CST1:.+]] = arith.constant 1
  // CHECK-DAG: %[[GETEXTENT0:.+]] = tensor.extract %[[SHAPEOF]][%[[CST0]]]
  // CHECK-DAG: %[[CST1_0:.+]] = arith.constant 1
  // CHECK-DAG: %[[GETEXTENT1:.+]] = tensor.extract %[[SHAPEOF]][%[[CST1_0]]]

      shape_before.take_back(shape_c.size()) != shape_c) {
    return failure();
  }
  ArrayRef<int64_t> shape_y2 =
      shape_before.drop_front(shape_b.size()).drop_back(shape_c.size());

  // No need to check %dot; dot_general verifier ensures correct shapes.
  // Extract Z from %dot.
  ArrayRef<int64_t> shape_z =

    }

    rewriter.replaceOp(op, results);
    return success();
  }
};

// Canonicalize ShapeNOp to ShapeOp if there is only one operand.
class ShapeNToShape : public OpRewritePattern<ShapeNOp> {
  using OpRewritePattern<ShapeNOp>::OpRewritePattern;
  LogicalResult matchAndRewrite(ShapeNOp op,
                                PatternRewriter &rewriter) const override {
    if (op.getNumOperands() != 1) {

    OpBuilder builder(shape_op);
    auto new_shape_op = builder.create<TF::VariableShapeOp>(
        shape_op.getLoc(), shape_op.getType(),
        replicate_op.GetReplicaOperandForBlockArgument(block_arg,
                                                       /*replica=*/0));
    shape_op.replaceAllUsesWith(new_shape_op.getOperation());
    shape_op.erase();
  }
}