mirror of
https://github.com/dart-lang/sdk
synced 2024-09-05 16:41:07 +00:00
![Leaf Petersen](/assets/img/avatar_default.png)
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
36 lines
1.1 KiB
Dart
36 lines
1.1 KiB
Dart
// Copyright (c) 2013, 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.
|
|
//
|
|
// Dart deoptimization of Uint32Array and Int32Array loads.
|
|
|
|
// @dart = 2.9
|
|
|
|
import 'dart:typed_data';
|
|
import "package:expect/expect.dart";
|
|
|
|
loadI32(a) => a[0] + 1;
|
|
loadUi32(a) => a[0] + 1;
|
|
|
|
main() {
|
|
var i32 = new Int32List(10);
|
|
var ui32 = new Uint32List(10);
|
|
i32[0] = ui32[0] = 8;
|
|
// Optimize loadI32 and LoadUi32 for Smi result of indexed load.
|
|
for (int i = 0; i < 2000; i++) {
|
|
Expect.equals(9, loadI32(i32));
|
|
Expect.equals(9, loadUi32(ui32));
|
|
}
|
|
// On ia32, deoptimize when attempting to load a value that exceeds
|
|
// Smi range.
|
|
i32[0] = ui32[0] = 2147483647;
|
|
Expect.equals(2147483648, loadI32(i32));
|
|
Expect.equals(2147483648, loadUi32(ui32));
|
|
// Reoptimize again, but this time assume mixed Smi/Mint results
|
|
i32[0] = ui32[0] = 10;
|
|
for (int i = 0; i < 2000; i++) {
|
|
Expect.equals(11, loadI32(i32));
|
|
Expect.equals(11, loadUi32(ui32));
|
|
}
|
|
}
|