001/*
002 * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.compiler.test;
024
025import org.junit.*;
026
027/**
028 * Collection of tests for
029 * {@link com.oracle.graal.phases.common.DominatorConditionalEliminationPhase} including those that
030 * triggered bugs in this phase.
031 */
032public class ConditionalEliminationTest4 extends ConditionalEliminationTestBase {
033
034    @SuppressWarnings("all")
035    public static int reference1Snippet(int a, int b) {
036        if (a > b) {
037            return 1;
038        }
039        return 2;
040    }
041
042    @SuppressWarnings("all")
043    public static int test1Snippet(int a, int b) {
044        if (a > b) {
045            if (a > b) {
046                return 1;
047            }
048        }
049        return 2;
050    }
051
052    @Test
053    public void test1() {
054        testConditionalElimination("test1Snippet", "reference1Snippet");
055    }
056
057    @SuppressWarnings("all")
058    public static int reference2Snippet(int a, int b) {
059        if (a < b) {
060            return 1;
061        }
062        return 2;
063    }
064
065    @SuppressWarnings("all")
066    public static int test2Snippet(int a, int b) {
067        if (a < b) {
068            if (a < b) {
069                return 1;
070            }
071        }
072        return 2;
073    }
074
075    @Test
076    public void test2() {
077        testConditionalElimination("test2Snippet", "reference2Snippet");
078    }
079}