jdk-24/nashorn/test/script/basic/ranges_payload.js

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/*
* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* range analysis test. check that computation return values are correct
* both with and without range analysis
*
* @subtest
*/
function f(c) {
var v = c & 0xffff;
var w = v & 0xfff;
var x = v * w;
return x;
}
function g() {
var sum = 0;
for (var x = 0; x < 4711; x++) {
sum += x;
}
return sum;
}
function g2() {
var sum = 0;
//make sure we overflow
var displacement = 0x7ffffffe;
for (var x = displacement; x < (displacement + 2); x++) {
sum += x;
}
return sum;
}
//mostly provide code coverage for all the range operations
function h() {
var sum = 0;
sum += 4711;
sum &= 0xffff;
sum /= 2;
sum *= 2;
sum -= 4;
sum |= 2;
sum ^= 17;
sum = sum % 10000;
sum = -sum;
return sum
}
print(f(17));
print(g());
print(g2());
print(h());