| /* |
| * Copyright (c) 2015, 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. |
| */ |
| |
| /* |
| * @test |
| * @bug 8085832 |
| * @bug 8135069 |
| * @summary x <= 0 || x > 0 wrongly folded as (x-1) >u -1 and x < 0 || x > -1 wrongly folded as x >u -1 |
| * |
| * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement |
| * compiler.rangechecks.TestBadFoldCompare |
| */ |
| |
| package compiler.rangechecks; |
| |
| public class TestBadFoldCompare { |
| |
| static boolean test1_taken; |
| |
| static void helper1(int i, int a, int b, boolean flag) { |
| if (flag) { |
| if (i <= a || i > b) { |
| test1_taken = true; |
| } |
| } |
| } |
| |
| static void test1(int i, boolean flag) { |
| helper1(i, 0, 0, flag); |
| } |
| |
| static boolean test2_taken; |
| |
| static void helper2(int i, int a, int b, boolean flag) { |
| if (flag) { |
| if (i > b || i <= a) { |
| test2_taken = true; |
| } |
| } |
| } |
| |
| static void test2(int i, boolean flag) { |
| helper2(i, 0, 0, flag); |
| } |
| |
| static boolean test3_taken; |
| |
| static void helper3(int i, int a, int b, boolean flag) { |
| if (flag) { |
| if (i < a || i > b - 1) { |
| test3_taken = true; |
| } |
| } |
| } |
| |
| static void test3(int i, boolean flag) { |
| helper3(i, 0, 0, flag); |
| } |
| |
| static boolean test4_taken; |
| |
| static void helper4(int i, int a, int b, boolean flag) { |
| if (flag) { |
| if (i > b - 1 || i < a) { |
| test4_taken = true; |
| } |
| } |
| } |
| |
| static void test4(int i, boolean flag) { |
| helper4(i, 0, 0, flag); |
| } |
| |
| static public void main(String[] args) { |
| boolean success = true; |
| |
| for (int i = 0; i < 20000; i++) { |
| helper1(5, 0, 10, (i%2)==0); |
| helper1(-1, 0, 10, (i%2)==0); |
| helper1(15, 0, 10, (i%2)==0); |
| test1(0, false); |
| } |
| test1_taken = false; |
| test1(0, true); |
| if (!test1_taken) { |
| System.out.println("Test1 failed"); |
| success = false; |
| } |
| |
| for (int i = 0; i < 20000; i++) { |
| helper2(5, 0, 10, (i%2)==0); |
| helper2(-1, 0, 10, (i%2)==0); |
| helper2(15, 0, 10, (i%2)==0); |
| test2(0, false); |
| } |
| test2_taken = false; |
| test2(0, true); |
| |
| if (!test2_taken) { |
| System.out.println("Test2 failed"); |
| success = false; |
| } |
| |
| for (int i = 0; i < 20000; i++) { |
| helper3(5, 0, 10, (i%2)==0); |
| helper3(-1, 0, 10, (i%2)==0); |
| helper3(15, 0, 10, (i%2)==0); |
| test3(0, false); |
| } |
| test3_taken = false; |
| test3(0, true); |
| |
| if (!test3_taken) { |
| System.out.println("Test3 failed"); |
| success = false; |
| } |
| |
| for (int i = 0; i < 20000; i++) { |
| helper4(5, 0, 10, (i%2)==0); |
| helper4(-1, 0, 10, (i%2)==0); |
| helper4(15, 0, 10, (i%2)==0); |
| test4(0, false); |
| } |
| test4_taken = false; |
| test4(0, true); |
| |
| if (!test4_taken) { |
| System.out.println("Test4 failed"); |
| success = false; |
| } |
| |
| if (!success) { |
| throw new RuntimeException("Some tests failed"); |
| } |
| } |
| } |