tests/language/vm/canonicalization_preserves_deopt_test.dart - Issue 722793002: Revert "Suppress canonicalization of Unbox() instruction that can deoptimize."

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Side by Side Diff: tests/language/vm/canonicalization_preserves_deopt_test.dart

Issue 722793002: Revert "Suppress canonicalization of Unbox() instruction that can deoptimize." (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart

Patch Set: Created 6 years, 1 month ago

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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file

2 // for details. All rights reserved. Use of this source code is governed by a

3 // BSD-style license that can be found in the LICENSE file.

4 // VMOptions=--optimization_counter_threshold=10 --no-use-osr

5

6 import "package:expect/expect.dart";

7

8 class X {

9 operator * (other) => "NaNNaNNaNNaNBatman";

10 }

11

12 foo(x) => (x * 1.0) is double;

13

14 main() {

15 for (var i = 0; i < 100; i++) {

16 Expect.isTrue(foo(1.0));

17 }

18 Expect.isFalse(foo(new X()));

19 }

20

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