Current File : /home/vacivi36/vittasync.vacivitta.com.br/vittasync/node/deps/v8/test/mjsunit/compiler/shift-shr.js
// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax
// Check the results of `left >>> right`. The result is always unsigned (and
// therefore positive).
function test_shr(left) {
var errors = 0;
for (var i = 1; i < 1024; i++) {
var temp = left >>> i;
if (temp < 0) {
errors++;
}
}
return errors;
}
%PrepareFunctionForOptimization(test_shr);
assertEquals(0, test_shr(1));
%OptimizeFunctionOnNextCall(test_shr);
for (var i = 5; i >= -5; i--) {
assertEquals(0, test_shr(i));
}
(function () {
function foo(x, b, array) {
var y;
x = x >>> 0;
b ? (y = x | 0) : (y = x);
return array[y];
}
%PrepareFunctionForOptimization(foo);
foo(111, true, new Array(42));
foo(111, true, new Array(42));
%OptimizeFunctionOnNextCall(foo);
foo(-111, true, new Array(42));
})();
(function () {
function foo(x, b, array) {
var y;
x = x >>> 0;
b ? (y = x | 0) : (y = x);
return array[y];
}
%PrepareFunctionForOptimization(foo);
foo(111, true, new Array(42));
foo(111, true, new Array(42));
%OptimizeFunctionOnNextCall(foo);
foo(111, true, new Array(42));
})();
Mini Shell