dart-sdk/tests/standalone/double_to_int_test.dart
Robert Nystrom 35da19ac07 Migrate standalone_2 to null safety.
Change-Id: I0e97add738bc79314a210cf137525b7391467fc2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152595
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Auto-Submit: Bob Nystrom <rnystrom@google.com>
2020-06-26 19:17:50 +00:00

34 lines
878 B
Dart

// Copyright (c) 2012, 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.
//
// Tests optimization: transform double.toInt() to DoubleToSmi
// unless we encounter a non-Smi result, in which case we deoptimize and
// optimize it later to DoubleToInt.
import "package:expect/expect.dart";
main() {
for (int i = 0; i < 600; i++) {
Expect.equals(100, foo(100, 1.2));
}
// Deoptimize 'foo', d2smi -> d2int.
Expect.equals(36507222016 * 2, foo(2, 36507222016.6));
for (int i = 0; i < 600; i++) {
Expect.equals(100, foo(100, 1.2));
}
Expect.equals(36507222016 * 2, foo(2, 36507222016.6));
}
foo(n, a) {
int k = 0;
for (int i = 0; i < n; i++) {
k += goo(a);
}
return k;
}
int goo(a) {
return a.toInt();
}