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Side by Side Diff: tests/standalone/int_array_deopt.dart

Issue 2984363004: Migrate first block of tests in standalone to standalone_2 (Closed)
Patch Set: Remove Expect.throws Created 3 years, 4 months ago
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1 // Copyright (c) 2013, 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 //
5 // Dart deoptimization of Uint32Array and Int32Array loads.
6
7 import 'dart:typed_data';
8
9 loadI32(a) => a[0] + 1;
10 loadUi32(a) => a[0] + 1;
11
12 main() {
13 var i32 = new Int32List(10);
14 var ui32 = new Uint32List(10);
15 i32[0] = ui32[0] = 8;
16 // Optimize loadI32 and LoadUi32 for Smi result of indexed load.
17 for (int i = 0; i < 2000; i++) {
18 Expect.equals(9, loadI32(i32));
19 Expect.equals(9, loadUi32(ui32));
20 }
21 // On ia32, deoptimize when attempting to load a value that exceeds
22 // Smi range.
23 i32[0] = ui32[0] = 2147483647;
24 Expect.equals(2147483648, loadI32(i32));
25 Expect.equals(2147483648, loadUi32(ui32));
26 // Reoptimize again, but this time assume mixed Smi/Mint results
27 i32[0] = ui32[0] = 10;
28 for (int i = 0; i < 2000; i++) {
29 Expect.equals(11, loadI32(i32));
30 Expect.equals(11, loadUi32(ui32));
31 }
32 }
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