Bob Nystrom
6c757957db
DDC's codegen test copies those files to a local "gen" directory so that it can do stuff like splitting out the multitests before it compiles them to JS. I left all of that alone, so the rest of DDC's test infrastructure is unchanged. The very first step that builds the "gen" directory just copies from sdk/tests/..._strong/... instead and the rest is good to go. I did not move not_yet_strong_tests.dart somewhere more accessible yet because I'm not sure if kernel needs it or where it should go. I did not create any status files because DDC doesn't need them and there are no test suites for the new directories for the other platforms.
60 lines
1.4 KiB
Dart
60 lines
1.4 KiB
Dart
// Copyright (c) 2011, 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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// VMOptions=--optimization-counter-threshold=10
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import "package:expect/expect.dart";
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// This is a test for deoptimization infrastructure and to reproduce the
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// failure from bug 5442338.
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main() {
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warmup();
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runTest();
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}
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// Create a situation where method 'call' is optimized for using class A
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// when calling foo.
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warmup() {
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List a = [ new A(), new A(), new A(), new A()];
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var res = 0;
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for (int i = 0; i < 20; i++) {
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res = call(a, 0);
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}
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Expect.equals(10, res);
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}
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// Create a situation where several optimized frames of 'call' are on stack
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// when deoptimization occurs because B.foo is called. After the first
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// deoptimization, several optimized frames of 'call' are still on stack and
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// some of them will be deoptimized.
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runTest() {
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List a = [ new A(), new A(), new B(), new A(), new B(), new B()];
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var res = call(a, 0);
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Expect.equals(35, res);
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}
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// This method will be optimized for using class A when calling 'foo' and
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// later will be deoptimized because B.foo is required.
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call(List a, int n) {
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if (n < a.length) {
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var sum = call(a, n + 1);
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for (int i = n; i < a.length; i++) {
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sum += a[i].foo();
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}
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return sum;
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}
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return 0;
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}
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class A {
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foo() { return 1; }
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}
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class B {
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foo() { return 2; }
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}
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