// 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)); } }