dart-sdk/tests/language/vm/deopt_smi_check_vm_test.dart
Robert Nystrom 2034061433 Migrate language_2/vm to NNBD.
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>
2020-06-25 20:39:23 +00:00

21 lines
590 B
Dart

// Copyright (c) 2016, 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 deoptimization on a smi check.
// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
import 'package:expect/expect.dart';
hc(a) {
var r = a.hashCode;
return r;
}
main() {
for (var i = 0; i < 20; i++) {
Expect.equals((1).hashCode, hc(1));
}
// Passing double causes deoptimization.
Expect.equals((1.0).hashCode, hc(1.0));
}