| // 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. |
| |
| // VMOptions=--use_compactor |
| |
| // Each loading unit creates more image pages in the heap, which unfortunately |
| // cannot be aligned stronger than virtual memory page alignment, so the |
| // compactor must detect references to these image pages separately. Before |
| // these loading units were implemented, the compactor could assume a small |
| // upper bound on the number of image pages. |
| |
| import "package:expect/expect.dart"; |
| import "fragmentation_deferred_load_lib1.dart" deferred as lib1; |
| import "fragmentation_deferred_load_lib2.dart" deferred as lib2; |
| import "fragmentation_deferred_load_lib3.dart" deferred as lib3; |
| |
| main() async { |
| await lib1.loadLibrary(); |
| Expect.equals("one!", lib1.foo()); |
| await lib2.loadLibrary(); |
| Expect.equals("two!", lib2.foo()); |
| await lib3.loadLibrary(); |
| Expect.equals("three!", lib3.foo()); |
| |
| final List<List> arrays = []; |
| // Fill up heap with alternate large-small items. |
| for (int i = 0; i < 500000; i++) { |
| arrays.add(new List(260)); |
| arrays.add(new List(1)); |
| } |
| // Clear the large items so that the heap is full of 260-word gaps. |
| for (int i = 0; i < arrays.length; i += 2) { |
| arrays[i] = null; |
| } |
| // Allocate a lot of 300-word objects that don't fit in the gaps. |
| for (int i = 0; i < 600000; i++) { |
| arrays.add(new List(300)); |
| } |
| } |