runtime/tests/vm/dart/unboxed_parameter_helper.dart

// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import 'dart:typed_data';

@pragma('vm:never-inline')
double getDoubleWithHeapObjectTag() {
  final bd = ByteData(8);
  bd.setUint64(0, 0x8000000180000001, Endian.host);
  final double v = bd.getFloat64(0, Endian.host);
  return v;
}