83 lines
2.6 KiB
Java
83 lines
2.6 KiB
Java
/*
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* Copyright (c) 2008, 2009, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 6778657
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* @summary Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
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*
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* @run main compiler.runtime.Test6778657
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*/
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package compiler.runtime;
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public class Test6778657 {
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public static void check_f2i(int expect) {
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float check = expect;
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check *= 2;
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int actual = (int) check;
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if (actual != expect) {
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throw new RuntimeException("expecting " + expect + ", got " + actual);
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}
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}
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public static void check_f2l(long expect) {
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float check = expect;
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check *= 2;
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long actual = (long) check;
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if (actual != expect) {
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throw new RuntimeException("expecting " + expect + ", got " + actual);
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}
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}
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public static void check_d2i(int expect) {
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double check = expect;
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check *= 2;
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int actual = (int) check;
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if (actual != expect) {
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throw new RuntimeException("expecting " + expect + ", got " + actual);
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}
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}
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public static void check_d2l(long expect) {
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double check = expect;
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check *= 2;
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long actual = (long) check;
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if (actual != expect) {
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throw new RuntimeException("expecting " + expect + ", got " + actual);
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}
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}
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public static void main(String[] args) {
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check_f2i(Integer.MAX_VALUE);
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check_f2i(Integer.MIN_VALUE);
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check_f2l(Long.MAX_VALUE);
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check_f2l(Long.MIN_VALUE);
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check_d2i(Integer.MAX_VALUE);
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check_d2i(Integer.MIN_VALUE);
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check_d2l(Long.MAX_VALUE);
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check_d2l(Long.MIN_VALUE);
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}
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}
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