blob: 36a5232ee679df0a5579c2e6bee3e6423104fc69 [file] [log] [blame]
// Copyright (c) 2011, 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=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
// @dart = 2.9
import "package:expect/expect.dart";
// Check correct deoptimization of instance field increment.
main() {
var a = new A();
var aa = new A();
for (int i = 0; i < 20; i++) {
a.Incr();
myIncr(aa);
conditionalIncr(false, a);
}
Expect.equals(20, a.f);
Expect.equals(20, aa.f);
a.f = 1.0;
// Deoptimize ++ part of instance increment.
a.Incr();
Expect.equals(2.0, a.f);
var b = new B();
// Deoptimize getfield part of instance increment.
myIncr(b);
Expect.equals(1.0, b.f);
// Deoptimize since no type feedback was collected.
var old = a.f;
conditionalIncr(true, a);
Expect.equals(old + 1, a.f);
}
myIncr(var a) {
a.f++;
}
conditionalIncr(var f, var a) {
if (f) {
a.f++;
}
}
class A {
A() : f = 0;
Incr() {
f++;
}
var f;
}
class B {
B() : f = 0;
var f;
}