/*

 * Copyright (c) 2014, 2016, 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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

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/*

 * @test TestStableInt

 * @summary tests on stable fields and arrays

 * @library /testlibrary /test/lib /

 * @modules java.base/jdk.internal.misc

 * @modules java.base/jdk.internal.vm.annotation

 * @build sun.hotspot.WhiteBox

 * @build compiler.stable.TestStableInt

 *

 * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp

 *                                 -XX:CompileOnly=::get,::get1,::get2,::get3,::get4

 *                                 -XX:-TieredCompilation

 *                                 -XX:+FoldStableValues

 *                                 compiler.stable.TestStableInt

 * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp

 *                                 -XX:CompileOnly=::get,::get1,::get2,::get3,::get4

 *                                 -XX:-TieredCompilation

 *                                 -XX:+FoldStableValues

 *                                 compiler.stable.TestStableInt

 *

 * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp

 *                                 -XX:CompileOnly=::get,::get1,::get2,::get3,::get4

 *                                 -XX:-TieredCompilation

 *                                 -XX:+FoldStableValues

 *                                 compiler.stable.TestStableInt

 * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp

 *                                 -XX:CompileOnly=::get,::get1,::get2,::get3,::get4

 *                                 -XX:-TieredCompilation

 *                                 -XX:+FoldStableValues

 *                                 compiler.stable.TestStableInt

 */

package compiler.stable;

import jdk.internal.vm.annotation.Stable;

import java.lang.reflect.InvocationTargetException;

public class TestStableInt {

    static final boolean isStableEnabled    = StableConfiguration.isStableEnabled;

    public static void main(String[] args) throws Exception {

        run(DefaultValue.class);

        run(IntStable.class);

        run(DefaultStaticValue.class);

        run(StaticIntStable.class);

        run(VolatileIntStable.class);

        // @Stable arrays: Dim 1-4

        run(IntArrayDim1.class);

        run(IntArrayDim2.class);

        run(IntArrayDim3.class);

        run(IntArrayDim4.class);

        // @Stable Object field: dynamic arrays

        run(ObjectArrayLowerDim0.class);

        run(ObjectArrayLowerDim1.class);

        run(ObjectArrayLowerDim2.class);

        // Nested @Stable fields

        run(NestedStableField.class);

        run(NestedStableField1.class);

        run(NestedStableField2.class);

        run(NestedStableField3.class);

        if (failed) {

            throw new Error("TEST FAILED");

        }

    }

    /* ==================================================== */

    static class DefaultValue {

        public @Stable int v;

        public static final DefaultValue c = new DefaultValue();

        public static int get() { return c.v; }

        public static void test() throws Exception {

            c.v = 1; int val2 = get();

            assertEquals(val1, 0);

            assertEquals(val2, 1);

        }

    }

    /* ==================================================== */

    static class IntStable {

        public @Stable int v;

        public static final IntStable c = new IntStable();

        public static int get() { return c.v; }

        public static void test() throws Exception {

            c.v = 1; int val1 = get();

            c.v = 2; int val2 = get();

            assertEquals(val1, 1);

            assertEquals(val2, (isStableEnabled ? 1 : 2));

        }

    }

    /* ==================================================== */

    static class DefaultStaticValue {

        public static @Stable int v;

        public static final DefaultStaticValue c = new DefaultStaticValue();

        public static int get() { return c.v; }

        public static void test() throws Exception {

            c.v = 1; int val2 = get();

            assertEquals(val1, 0);

            assertEquals(val2, 1);

        }

    }

    /* ==================================================== */

    static class StaticIntStable {

        public static @Stable int v;

        public static final StaticIntStable c = new StaticIntStable();

        public static int get() { return c.v; }

        public static void test() throws Exception {

            c.v = 1; int val1 = get();

            c.v = 2; int val2 = get();

            assertEquals(val1, 1);

            assertEquals(val2, (isStableEnabled ? 1 : 2));

        }

    }

    /* ==================================================== */

    static class VolatileIntStable {

        public @Stable volatile int v;

        public static final VolatileIntStable c = new VolatileIntStable();

        public static int get() { return c.v; }

        public static void test() throws Exception {

            c.v = 1; int val1 = get();

            c.v = 2; int val2 = get();

            assertEquals(val1, 1);

            assertEquals(val2, (isStableEnabled ? 1 : 2));

        }

    }

    /* ==================================================== */

    // @Stable array == field && all components are stable

    static class IntArrayDim1 {

        public @Stable int[] v;

        public static final IntArrayDim1 c = new IntArrayDim1();

        public static int get() { return c.v[0]; }

        public static int get1() { return c.v[10]; }

        public static int[] get2() { return c.v; }

        public static void test() throws Exception {

            {

                c.v = new int[1]; c.v[0] = 1; int val1 = get();

                assertEquals(val1, 1);

                assertEquals(val2, (isStableEnabled ? 1 : 2));

                c.v = new int[1]; c.v[0] = 3; int val3 = get();

                assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 1 : 2)

            }

            {

                c.v = new int[20]; c.v[10] = 1; int val1 = get1();

                assertEquals(val1, 1);

                assertEquals(val2, (isStableEnabled ? 1 : 2));

                c.v = new int[20]; c.v[10] = 3; int val3 = get1();

                assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 1 : 2)

            }

            {

                c.v = new int[1]; int[] val1 = get2();

                c.v = new int[1]; int[] val2 = get2();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

        }

    }

    /* ==================================================== */

    static class IntArrayDim2 {

        public @Stable int[][] v;

        public static final IntArrayDim2 c = new IntArrayDim2();

        public static int get() { return c.v[0][0]; }

        public static int[] get1() { return c.v[0]; }

        public static int[][] get2() { return c.v; }

        public static void test() throws Exception {

            {

                c.v = new int[1][1]; c.v[0][0] = 1; int val1 = get();

                assertEquals(val1, 1);

                assertEquals(val2, (isStableEnabled ? 1 : 2));

                c.v = new int[1][1]; c.v[0][0] = 3; int val3 = get();

                assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 1 : 2)

                c.v[0] = new int[1]; c.v[0][0] = 4; int val4 = get();

                assertEquals(val4, (isStableEnabled ? (isStableEnabled ? 1 : 2)

            }

            {

                c.v = new int[1][1]; int[] val1 = get1();

                c.v[0] = new int[1]; int[] val2 = get1();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

            {

                c.v = new int[1][1]; int[][] val1 = get2();

                c.v = new int[1][1]; int[][] val2 = get2();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

        }

    }

    /* ==================================================== */

    static class IntArrayDim3 {

        public @Stable int[][][] v;

        public static final IntArrayDim3 c = new IntArrayDim3();

        public static int get() { return c.v[0][0][0]; }

        public static int[] get1() { return c.v[0][0]; }

        public static int[][] get2() { return c.v[0]; }

        public static int[][][] get3() { return c.v; }

        public static void test() throws Exception {

            {

                c.v = new int[1][1][1]; c.v[0][0][0] = 1; int val1 = get();

                assertEquals(val1, 1);

                assertEquals(val2, (isStableEnabled ? 1 : 2));

                c.v = new int[1][1][1]; c.v[0][0][0] = 3; int val3 = get();

                assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 1 : 2)

                c.v[0] = new int[1][1]; c.v[0][0][0] = 4; int val4 = get();

                assertEquals(val4, (isStableEnabled ? (isStableEnabled ? 1 : 2)

                c.v[0][0] = new int[1]; c.v[0][0][0] = 5; int val5 = get();

                assertEquals(val5, (isStableEnabled ? (isStableEnabled ? 1 : 2)

            }

            {

                c.v = new int[1][1][1]; int[] val1 = get1();

                c.v[0][0] = new int[1]; int[] val2 = get1();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

            {

                c.v = new int[1][1][1]; int[][] val1 = get2();

                c.v[0] = new int[1][1]; int[][] val2 = get2();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

            {

                c.v = new int[1][1][1]; int[][][] val1 = get3();

                c.v = new int[1][1][1]; int[][][] val2 = get3();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

        }

    }

    /* ==================================================== */

    static class IntArrayDim4 {

        public @Stable int[][][][] v;

        public static final IntArrayDim4 c = new IntArrayDim4();

        public static int get() { return c.v[0][0][0][0]; }

        public static int[] get1() { return c.v[0][0][0]; }

        public static int[][] get2() { return c.v[0][0]; }

        public static int[][][] get3() { return c.v[0]; }

        public static int[][][][] get4() { return c.v; }

        public static void test() throws Exception {

            {

                c.v = new int[1][1][1][1]; c.v[0][0][0][0] = 1; int val1 = get();

                assertEquals(val1, 1);

                assertEquals(val2, (isStableEnabled ? 1 : 2));

                c.v = new int[1][1][1][1]; c.v[0][0][0][0] = 3; int val3 = get();

                assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 1 : 2)

                c.v[0] = new int[1][1][1]; c.v[0][0][0][0] = 4; int val4 = get();

                assertEquals(val4, (isStableEnabled ? (isStableEnabled ? 1 : 2)

                c.v[0][0] = new int[1][1]; c.v[0][0][0][0] = 5; int val5 = get();

                assertEquals(val5, (isStableEnabled ? (isStableEnabled ? 1 : 2)

                c.v[0][0][0] = new int[1]; c.v[0][0][0][0] = 6; int val6 = get();

                assertEquals(val6, (isStableEnabled ? (isStableEnabled ? 1 : 2)

            }

            {

                c.v = new int[1][1][1][1]; int[] val1 = get1();

                c.v[0][0][0] = new int[1]; int[] val2 = get1();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

            {

                c.v = new int[1][1][1][1]; int[][] val1 = get2();

                c.v[0][0] = new int[1][1]; int[][] val2 = get2();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

            {

                c.v = new int[1][1][1][1]; int[][][] val1 = get3();

                c.v[0] = new int[1][1][1]; int[][][] val2 = get3();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

            {

                c.v = new int[1][1][1][1]; int[][][][] val1 = get4();

                c.v = new int[1][1][1][1]; int[][][][] val2 = get4();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

        }

    }

    /* ==================================================== */

    // Dynamic Dim is higher than static

    static class ObjectArrayLowerDim0 {

        public @Stable Object v;

        public static final ObjectArrayLowerDim0 c = new ObjectArrayLowerDim0();

        public static int get() { return ((int[])c.v)[0]; }

        public static int[] get1() { return (int[])c.v; }

        public static void test() throws Exception {

            {

                c.v = new int[1]; ((int[])c.v)[0] = 1; int val1 = get();

                assertEquals(val1, 1);

                assertEquals(val2, 2);

            }

            {

                c.v = new int[1]; int[] val1 = get1();

                c.v = new int[1]; int[] val2 = get1();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

        }

    }

    /* ==================================================== */

    static class ObjectArrayLowerDim1 {

        public @Stable Object[] v;

        public static final ObjectArrayLowerDim1 c = new ObjectArrayLowerDim1();

        public static int get() { return ((int[][])c.v)[0][0]; }

        public static int[] get1() { return (int[])(c.v[0]); }

        public static Object[] get2() { return c.v; }

        public static void test() throws Exception {

            {

                c.v = new int[1][1]; ((int[][])c.v)[0][0] = 1; int val1 = get();

                assertEquals(val1, 1);

                assertEquals(val2, 2);

            }

            {

                c.v = new int[1][1]; c.v[0] = new int[0]; int[] val1 = get1();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

            {

                c.v = new int[0][0]; Object[] val1 = get2();

                c.v = new int[0][0]; Object[] val2 = get2();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

        }

    }

    /* ==================================================== */

    static class ObjectArrayLowerDim2 {

        public @Stable Object[][] v;

        public static final ObjectArrayLowerDim2 c = new ObjectArrayLowerDim2();

        public static int get() { return ((int[][][])c.v)[0][0][0]; }

        public static int[] get1() { return (int[])(c.v[0][0]); }

        public static int[][] get2() { return (int[][])(c.v[0]); }

        public static Object[][] get3() { return c.v; }

        public static void test() throws Exception {

            {

                c.v = new int[1][1][1]; ((int[][][])c.v)[0][0][0] = 1; int val1 = get();

                assertEquals(val1, 1);

                assertEquals(val2, 2);

            }

            {

                c.v = new int[1][1][1]; c.v[0][0] = new int[0]; int[] val1 = get1();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

            {

                c.v = new int[1][1][1]; c.v[0] = new int[0][0]; int[][] val1 = get2();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

            {

                c.v = new int[0][0][0]; Object[][] val1 = get3();

                c.v = new int[0][0][0]; Object[][] val2 = get3();

                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));

            }

        }

    }

    /* ==================================================== */

    static class NestedStableField {

        static class A {

            public @Stable int a;

        }

        public @Stable A v;

        public static final NestedStableField c = new NestedStableField();

        public static A get() { return c.v; }

        public static int get1() { return get().a; }

        public static void test() throws Exception {

            {

                c.v = new A(); c.v.a = 1; A val1 = get();

                assertEquals(val1.a, 2);

                assertEquals(val2.a, 2);

            }

            {

                c.v = new A(); c.v.a = 1; int val1 = get1();

                c.v = new A(); c.v.a = 3; int val3 = get1();

                assertEquals(val1, 1);

                assertEquals(val2, (isStableEnabled ? 1 : 2));

                assertEquals(val3, (isStableEnabled ? 1 : 3));

            }

        }

    }

    /* ==================================================== */

    static class NestedStableField1 {

        static class A {

            public @Stable int a;

            public @Stable A next;

        }

        public @Stable A v;

        public static final NestedStableField1 c = new NestedStableField1();

        public static A get() { return c.v.next.next.next.next.next.next.next; }

        public static int get1() { return get().a; }

        public static void test() throws Exception {

            {

                c.v = new A(); c.v.next = new A();   c.v.next.next  = c.v;