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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
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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 correctness of side effects tracking used by load to load forwarding.
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// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
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// Tests correct handling of redefinitions in aliasing computation.
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import "package:expect/expect.dart";
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var H = true;
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class A {
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late B bb;
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@pragma('vm:prefer-inline')
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poly(p) {
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if (H) {
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bb = p;
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}
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B t = bb;
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t.bval = 123;
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return t.bval;
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}
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}
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class B {
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int bval = -1;
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@pragma('vm:prefer-inline')
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poly(p) {
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return bval;
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}
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}
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@pragma('vm:prefer-inline')
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foo(obj, p) => obj.poly(p);
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@pragma('vm:never-inline')
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test() {
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A a = new A();
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B b = new B();
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foo(a, b);
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foo(a, b);
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return b.bval;
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}
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main() {
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// Prime foo with polymorphic type feedback.
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foo(new B(), new A());
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foo(new A(), new B());
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for (var i = 0; i < 100; i++) test();
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Expect.equals(123, test());
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}
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