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>
56 lines
1.2 KiB
Dart
56 lines
1.2 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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// Test deoptimization caused by running code that did not collect type
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// feedback before.
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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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testStoreIndexed() {
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test(a, i, v, flag) {
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if (flag) {
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// No type feedback in first pass
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return a[i] = v;
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} else {
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return a[i] = i;
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}
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}
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var a = new List(10);
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for (var i = 0; i < 20; i++) {
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var r = test(a, 3, 888, false);
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Expect.equals(3, r);
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Expect.equals(3, a[3]);
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}
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// Deopt.
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var r = test(a, 3, 888, true);
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Expect.equals(888, r);
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Expect.equals(888, a[3]);
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}
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testIncrLocal() {
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test(a, flag) {
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if (flag) {
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a++;
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return a;
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} else {
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return -1;
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}
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}
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for (var i = 0; i < 20; i++) {
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var r = test(10, false);
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Expect.equals(-1, r);
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}
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// Deopt.
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var r = test(10, true);
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Expect.equals(11, r);
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}
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main() {
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for (var i = 0; i < 20; i++) {}
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testStoreIndexed();
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testIncrLocal();
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}
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