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.jtt.backend;
024
025import static com.oracle.graal.api.directives.GraalDirectives.*;
026
027import java.lang.reflect.*;
028
029import jdk.internal.jvmci.options.*;
030import jdk.internal.jvmci.options.OptionValue.OverrideScope;
031
032import org.junit.*;
033
034import com.oracle.graal.compiler.common.*;
035import com.oracle.graal.jtt.*;
036
037public class ConstantPhiTest extends JTTTest {
038
039    public static int test(int i, int x) throws Throwable {
040        int r;
041        if (injectBranchProbability(LIKELY_PROBABILITY, i < 0)) {
042            r = 42;
043        } else {
044            r = x;
045        }
046        destroyCallerSavedValues();
047        return r;
048    }
049
050    protected static void destroyCallerSavedValues() throws Throwable {
051        Class<ConstantPhiTest> c = ConstantPhiTest.class;
052        Method m = c.getMethod("destroyCallerSavedValues0");
053        m.invoke(null);
054    }
055
056    public static void destroyCallerSavedValues0() {
057    }
058
059    @Test
060    public void run0() {
061        try (OverrideScope os = OptionValue.override(GraalOptions.MaximumInliningSize, -1)) {
062            runTest("test", 0, 0xDEADDEAD);
063        }
064    }
065
066    @Test
067    public void run1() {
068        try (OverrideScope os = OptionValue.override(GraalOptions.MaximumInliningSize, -1)) {
069            runTest("test", -1, 0xDEADDEAD);
070        }
071    }
072
073    @Test
074    public void run2() {
075        try (OverrideScope os = OptionValue.override(GraalOptions.MaximumInliningSize, -1)) {
076            runTest("test", 1, 0xDEADDEAD);
077        }
078    }
079}