| // Copyright (c) 2013, 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. |
| |
| // Regression test for dart2js that used to generate wrong code for |
| // [foo]. |
| |
| import "package:expect/expect.dart"; |
| |
| main() { |
| var result = foo(1, 2); |
| Expect.equals(1, result[0]); |
| Expect.equals(2, result[1]); |
| |
| result = foo([], 2); |
| Expect.equals(0, result[0]); |
| Expect.listEquals([], result[1]); |
| } |
| |
| @pragma('vm:never-inline') |
| @pragma('dart2js:noInline') |
| foo(a, b) { |
| () => 42; |
| if (a is List) { |
| var saved = a as List; |
| // By having two HTypeKnown SSA instructions for [a], dart2js was |
| // confused when updating the phis at exit of this block. |
| a = a.length; |
| b = saved; |
| } |
| return [a, b]; |
| } |