Robert Nystrom
c959c9aba7
Change-Id: I3f67dd79ff2ee745cc2ea161ce7150630e805c97 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/150186 Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Nicholas Shahan <nshahan@google.com>
32 lines
1012 B
Dart
32 lines
1012 B
Dart
// Copyright (c) 2012, 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.
|
|
// Test program for correct optimizations related to types fo allocated lists.
|
|
// VMOptions=--optimization-counter-threshold=10
|
|
|
|
import "package:expect/expect.dart";
|
|
|
|
main() {
|
|
// Trigger optimization of 'test' method.
|
|
for (int i = 0; i < 20; i++) {
|
|
test(2);
|
|
}
|
|
}
|
|
|
|
test(n) {
|
|
var a = []; // Growable list.
|
|
var b = new List<dynamic>.filled(10, null); // Fixed size list.
|
|
var c = const [1, 2, 3, 4]; // Constant aray.
|
|
// In optimized mode the class checks will be eliminated since the
|
|
// constructors above provide information about exact types.
|
|
a.add(4);
|
|
b[0] = 5;
|
|
Expect.equals(4, a[0]);
|
|
Expect.equals(5, b[0]);
|
|
// Test bound check elimination.
|
|
Expect.equals(2, c[1]);
|
|
// Test elimination of array length computation.
|
|
var v = c[n];
|
|
Expect.equals(v, c[n]);
|
|
}
|