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// 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.
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));
}
}