| // Copyright (c) 2019, 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:math"; |
| import "dart:typed_data"; |
| |
| import "package:expect/expect.dart"; |
| |
| // This test tests check null for Simd Operations |
| |
| final rng = Random(); |
| |
| // Returns null |
| @pragma('vm:never-inline') |
| Float32x4 f() { |
| var v = rng.nextInt(1000000000) + 100; |
| |
| // Ensures that v is not a perfect number |
| while (v == 496 || v == 8128 || v == 33550336) { |
| v = rng.nextInt(1000000000) + 100; |
| } |
| |
| // Checks if v is a perfect number |
| var sum = 0; |
| for (var i = 1; i * i <= v; i++) { |
| if (v % i == 0) { |
| sum += i; |
| if (i * i != v) { |
| sum += v ~/ i; |
| } |
| } |
| } |
| |
| if (sum == v) { |
| // Always false |
| return Float32x4(sum.toDouble(), 10.0, 10.0, 10.0); |
| } |
| |
| return null; |
| } |
| |
| main() { |
| closure1() { |
| final a = Float32x4(0.0, 1.0, 2.0, 3.0); |
| final b = f(); |
| return a - b; |
| } |
| |
| closure2() { |
| final a = f() == null ? Float32x4(0.0, 1.0, 2.0, 3.0) : null; |
| final b = f(); |
| final c = b / a; |
| return c + a; |
| } |
| |
| closure3() { |
| final a = f(); |
| final b = f(); |
| return a * b; |
| } |
| |
| closure4() { |
| final a = Float32x4(0.0, 1.0, 2.0, 3.0); |
| final b = Float32x4(2.0, 4.0, 6.0, 8.0); |
| return b - a; |
| } |
| |
| Expect.throwsArgumentError(closure1); |
| Expect.throwsNoSuchMethodError(closure2); |
| Expect.throwsNoSuchMethodError(closure3); |
| final r = closure4(); |
| Expect.equals(r.x, 2.0); |
| Expect.equals(r.y, 3.0); |
| } |