/*
 * Copyright (c) 2015, 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.
 *
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package org.graalvm.compiler.jtt.loop;

import org.junit.Test;

import org.graalvm.compiler.api.directives.GraalDirectives;
import org.graalvm.compiler.jtt.JTTTest;

public class SpillLoopPhiVariableAtDefinition extends JTTTest {

    public static int test(int arg) {
        int count = arg;
        for (int i = 0; i < arg; i++) {
            GraalDirectives.bindToRegister(count);
            GraalDirectives.spillRegisters();
            GraalDirectives.bindToRegister(count);
            if (i == 0) {
                GraalDirectives.spillRegisters();
                continue;
            }
            GraalDirectives.spillRegisters();
            count++;
        }
        return count;
    }

    @Test
    public void run0() throws Throwable {
        runTest("test", 0);
    }

    @Test
    public void run1() throws Throwable {
        runTest("test", 10);
    }

    @Test
    public void run2() throws Throwable {
        runTest("test", 25);
    }

}