| // 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. |
| // |
| // Regression test for https://github.com/dart-lang/sdk/issues/36374. |
| // |
| // Bytecode flow graph builder should be able to correctly handle non-empty |
| // expression stack when throwing an exception: dropping some of the entries, |
| // while keeping entries which could still be used. |
| // |
| // VMOptions=--optimization_counter_threshold=10 --deterministic |
| |
| class Foo { |
| Foo(int x); |
| } |
| |
| class Bar { |
| Bar(String y, Foo z); |
| } |
| |
| foo(Object arg) { |
| return Bar('abc', arg == null ? null : Foo((throw 'Err'))); |
| } |
| |
| main() { |
| for (int i = 0; i < 20; ++i) { |
| foo(null); |
| } |
| } |