Robert Nystrom
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>
28 lines
891 B
Dart
28 lines
891 B
Dart
// Copyright (c) 2019, 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=--deterministic
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// Found by DartFuzzing: would fail during deopt:
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// https://github.com/dart-lang/sdk/issues/38741
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import 'package:expect/expect.dart';
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@pragma('vm:prefer-inline')
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bool foo(int x) => x < 10;
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@pragma('vm:never-inline')
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bool bar(bool f) => f && foo(1);
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void main() {
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try {
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foo(null); // seed feedback for x < 10 with null receiver cid
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} catch (e) {}
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// Now when foo will be inlined into bar we will know that x is Smi,
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// this hower disagrees with type feedback (which currently is monomorphic and
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// expects null receiver for x < 10).
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for (var i = 0; i < 10000; i++) Expect.isFalse(bar(false));
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Expect.isTrue(bar(true));
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}
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