// Copyright (c) 2014, 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. // VMOptions=--optimization_counter_threshold=10 --no-background_compilation import 'package:expect/expect.dart'; trunc(x) => x & 0xFFFFFFFF; f(t, x) => t(x) + 1; g(t, x) => t(x + 1); // Foo should be entirely replaced by Uint32 operations. Running with // --trace-integer-ir-selection should result in: // CheckStackOverflow:4() // v22 <- UnboxUint32:14(v2) // v24 <- UnboxUint32:14(v3) // v6 <- BinaryUint32Op:14(+, v22 , v24 ) // v26 <- UnboxUint32:22(v4) // v8 <- BinaryUint32Op:22(+, v6 , v26 ) // v28 <- UnboxUint32:30(v5) // v10 <- BinaryUint32Op:30(+, v8 , v28 ) // v30 <- UnboxUint32:14(v21) // v19 <- BinaryUint32Op:14(&, v10 , v30 ) // v32 <- BoxUint32:90(v19 ) // Return:38(v32 ) foo(a, b, c, i) { return trunc(a + b + c + i); } main() { for (var i = 0; i < 20000; i++) { Expect.equals(0x100000000, f(trunc, 0xFFFFFFFF)); Expect.equals(0x0, g(trunc, 0xFFFFFFFF)); } var a = 0xFFFFFFFF; var b = 0xCCCCCCCC; var c = 0x33333335; for (var i = 0; i < 20000; i++) { Expect.equals(i, foo(a, b, c, i)); } }