jdk8-mips64-public/nashorn: test/script/basic/JDK-8058610.js@3219e9e47daf (annotated)

test/script/basic/JDK-8058610.js@3219e9e47daf (annotated)

test/script/basic/JDK-8058610.js

Tue, 21 Oct 2014 14:27:49 +0200

author: attila
date: Tue, 21 Oct 2014 14:27:49 +0200
changeset 1065: 3219e9e47daf
child 1482: 58791cd01bc9
permissions: -rw-r--r--

8058610: must not let long operations overflow
Reviewed-by: hannesw, jlaskey, lagergren

 /*
  * Copyright (c) 2014 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.
  */
 /**
  * JDK-8058610: must not let long operations overflow
  *
  * @test
  * @run
  */
 function mul(x) {
     return x.foo * x.bar;
 }
 print("=== mul ===")
 print(mul({foo: 2147483647,  bar: 2147483647})); // 2^31
 print(mul({foo: 17179869184, bar: 2147483647})); // 2^34
 function self_mul(x) {
     return x.foo *= x.bar;
 }
 print("=== self_mul ===")
 print(self_mul({foo: 2147483647,  bar: 2147483647})); // 2^31
 print(self_mul({foo: 17179869184, bar: 2147483647})); // 2^34
 // We'll need to use this function to obtain long values larger in
 // magnitude than those precisely representable in a double (2^53),
 // as Nashorn's parser will reify such literals as a double. For
 // overflow on add and sub we need (2^63)-1.
 var parseLong = Java.type("java.lang.Long").parseLong;
 function sub(x) {
     return x.foo - x.bar;
 }
 print("=== sub ===")
 print(sub({foo: 2147483647,  bar: -2147483647})); // 2^31
 print(sub({foo: parseLong("9223372036854775807"), bar: parseLong("-9223372036854775807")})); // 2^63-1
 function self_sub(x) {
     return x.foo -= x.bar;
 }
 print("=== self_sub ===")
 print(self_sub({foo: 2147483647,  bar: -2147483647})); // 2^31
 print(self_sub({foo: parseLong("9223372036854775807"), bar: parseLong("-9223372036854775807")})); // 2^63-1
 function add(x) {
     return x.foo + x.bar;
 }
 print("=== add ===")
 print(add({foo: 2147483647,  bar: 2147483647})); // 2^31
 print(add({foo: parseLong("9223372036854775807"), bar: parseLong("9223372036854775807")})); // 2^63-1
 function self_add(x) {
     return x.foo += x.bar;
 }
 print("=== self_add ===")
 print(self_add({foo: 2147483647,  bar: 2147483647})); // 2^31
 print(self_add({foo: parseLong("9223372036854775807"), bar: parseLong("9223372036854775807")})); // 2^63-1