mirror of
https://github.com/dart-lang/sdk
synced 2024-09-19 14:32:49 +00:00
2034061433
Change-Id: I313a57ed7c7ea2ada75065f55a7367376f6bdae5 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152183 Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Srujan Gaddam <srujzs@google.com>
57 lines
1.1 KiB
Dart
57 lines
1.1 KiB
Dart
// Copyright (c) 2014, 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 correctness of side effects tracking used by load to load forwarding.
|
|
|
|
// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
|
|
|
|
// Tests correct handling of redefinitions in aliasing computation.
|
|
|
|
import "package:expect/expect.dart";
|
|
|
|
var H = true;
|
|
|
|
class A {
|
|
late B bb;
|
|
|
|
@pragma('vm:prefer-inline')
|
|
poly(p) {
|
|
if (H) {
|
|
bb = p;
|
|
}
|
|
B t = bb;
|
|
t.bval = 123;
|
|
return t.bval;
|
|
}
|
|
}
|
|
|
|
class B {
|
|
int bval = -1;
|
|
|
|
@pragma('vm:prefer-inline')
|
|
poly(p) {
|
|
return bval;
|
|
}
|
|
}
|
|
|
|
@pragma('vm:prefer-inline')
|
|
foo(obj, p) => obj.poly(p);
|
|
|
|
@pragma('vm:never-inline')
|
|
test() {
|
|
A a = new A();
|
|
B b = new B();
|
|
foo(a, b);
|
|
foo(a, b);
|
|
return b.bval;
|
|
}
|
|
|
|
main() {
|
|
// Prime foo with polymorphic type feedback.
|
|
foo(new B(), new A());
|
|
foo(new A(), new B());
|
|
|
|
for (var i = 0; i < 100; i++) test();
|
|
Expect.equals(123, test());
|
|
}
|