Robert Nystrom
fc1b1ecc71
Change-Id: Idbcc965a27e9ffeedf5e0a1068b019de4193070f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/127745 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Alexander Thomas <athom@google.com>
47 lines
964 B
Dart
47 lines
964 B
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Test deoptimziation caused by lazy finalization.
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// VMOptions=--optimization-counter-threshold=10 --no-use-osr
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import "package:expect/expect.dart";
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main() {
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Expect.equals(20000, part1());
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// Trigger lazy finalization of class B, which should invalidate
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// optimized code for A.loop.
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Expect.equals(-20000, part2());
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}
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part1() {
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var a = new A();
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a.loop();
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// Second invocation calls optimized code.
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return a.loop();
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}
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part2() {
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var b = new B();
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b.loop();
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// Second invocation calls optimized code.
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return b.loop();
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}
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class A {
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foo() => 2;
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loop() {
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var sum = 0;
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for (int i = 0; i < 10000; i++) {
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sum += foo();
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}
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return sum;
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}
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}
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class Aa extends A {}
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class B extends Aa {
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foo() => -2;
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}
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