/*

 * Copyright (c) 2014, 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 TestStableDouble

 * @summary tests on stable fields and arrays

 * @library /testlibrary

 * @compile -XDignore.symbol.file TestStableDouble.java

 * @run main ClassFileInstaller

 *           java/lang/invoke/TestStableDouble

 *           java/lang/invoke/TestStableDouble$DoubleStable

 *           java/lang/invoke/TestStableDouble$StaticDoubleStable

 *           java/lang/invoke/TestStableDouble$VolatileDoubleStable

 *           java/lang/invoke/TestStableDouble$DoubleArrayDim1

 *           java/lang/invoke/TestStableDouble$DoubleArrayDim2

 *           java/lang/invoke/TestStableDouble$DoubleArrayDim3

 *           java/lang/invoke/TestStableDouble$DoubleArrayDim4

 *           java/lang/invoke/TestStableDouble$ObjectArrayLowerDim0

 *           java/lang/invoke/TestStableDouble$ObjectArrayLowerDim1

 *           java/lang/invoke/TestStableDouble$NestedStableField

 *           java/lang/invoke/TestStableDouble$NestedStableField$A

 *           java/lang/invoke/TestStableDouble$NestedStableField1

 *           java/lang/invoke/TestStableDouble$NestedStableField1$A

 *           java/lang/invoke/TestStableDouble$NestedStableField2

 *           java/lang/invoke/TestStableDouble$NestedStableField2$A

 *           java/lang/invoke/TestStableDouble$NestedStableField3

 *           java/lang/invoke/TestStableDouble$NestedStableField3$A

 *           java/lang/invoke/TestStableDouble$DefaultValue

 *           java/lang/invoke/TestStableDouble$ObjectArrayLowerDim2

 *

 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions

 *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:+UseCompressedOop

 *                   -server -XX:-TieredCompilation -Xcomp

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

 *                   java.lang.invoke.TestStableDouble

 *

 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions

 *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:-UseCompressedOop

 *                   -server -XX:-TieredCompilation -Xcomp

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

 *                   java.lang.invoke.TestStableDouble

 *

 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions

 *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:+UseCompressedOop

 *                   -server -XX:-TieredCompilation -Xcomp

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

 *                   java.lang.invoke.TestStableDouble

 *

 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions

 *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:-UseCompressedOop

 *                   -server -XX:-TieredCompilation -Xcomp

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

 *                   java.lang.invoke.TestStableDouble

 */

package java.lang.invoke;

import com.sun.management.HotSpotDiagnosticMXBean;

import com.sun.management.VMOption;

import sun.management.ManagementFactoryHelper;

import java.lang.reflect.InvocationTargetException;

public class TestStableDouble {

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

        System.out.println("@Stable enabled: "+isStableEnabled);

        System.out.println();

        run(DefaultValue.class);

        run(DoubleStable.class);

        run(StaticDoubleStable.class);

        run(VolatileDoubleStable.class);

        // @Stable arrays: Dim 1-4

        run(DoubleArrayDim1.class);

        run(DoubleArrayDim2.class);

        run(DoubleArrayDim3.class);

        run(DoubleArrayDim4.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 double v;

        public static final DefaultValue c = new DefaultValue();

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

        public static void test() throws Exception {

                       double val1 = get();

            c.v = 1.0; double val2 = get();

            assertEquals(val1, 0);

            assertEquals(val2, 1.0);

        }

    }

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

    static class DoubleStable {

        public @Stable double v;

        public static final DoubleStable c = new DoubleStable();

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

        public static void test() throws Exception {

            c.v = 1.0; double val1 = get();

            c.v = Double.MAX_VALUE; double val2 = get();

            assertEquals(val1, 1.0);

            assertEquals(val2, (isStableEnabled ? 1.0 : Double.MAX_VALUE));

        }

    }

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

    static class StaticDoubleStable {

        public static @Stable double v;

        public static final StaticDoubleStable c = new StaticDoubleStable();

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

        public static void test() throws Exception {

            c.v = 1.0; double val1 = get();

            c.v = Double.MAX_VALUE; double val2 = get();

            assertEquals(val1, 1.0);

            assertEquals(val2, (isStableEnabled ? 1.0 : Double.MAX_VALUE));

        }

    }

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

    static class VolatileDoubleStable {

        public @Stable double v;

        public static final VolatileDoubleStable c = new VolatileDoubleStable();

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

        public static void test() throws Exception {

            c.v = 1.0; double val1 = get();

            c.v = Double.MAX_VALUE; double val2 = get();

            assertEquals(val1, 1.0);

            assertEquals(val2, (isStableEnabled ? 1.0 : Double.MAX_VALUE));

        }

    }

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

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

    static class DoubleArrayDim1 {

        public @Stable double[] v;

        public static final DoubleArrayDim1 c = new DoubleArrayDim1();

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

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

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

        public static void test() throws Exception {

            {

                c.v = new double[1]; c.v[0] = 1.0; double val1 = get();

                                     c.v[0] = 2.0; double val2 = get();

                assertEquals(val1, 1.0);

                assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));

                c.v = new double[1]; c.v[0] = 3.0; double val3 = get();

                assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));

            }

            {

                c.v = new double[20]; c.v[10] = 1.0; double val1 = get1();

                                      c.v[10] = 2.0; double val2 = get1();

                assertEquals(val1, 1.0);

                assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));

                c.v = new double[20]; c.v[10] = 3.0; double val3 = get1();

                assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));

            }

            {

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

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

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

            }

        }

    }

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

    static class DoubleArrayDim2 {

        public @Stable double[][] v;

        public static final DoubleArrayDim2 c = new DoubleArrayDim2();

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

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

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

        public static void test() throws Exception {

            {

                c.v = new double[1][1]; c.v[0][0] = 1.0; double val1 = get();

                                        c.v[0][0] = 2.0; double val2 = get();

                assertEquals(val1, 1.0);

                assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));

                c.v = new double[1][1]; c.v[0][0] = 3.0; double val3 = get();

                assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));

                c.v[0] = new double[1]; c.v[0][0] = 4.0; double val4 = get();

                assertEquals(val4, (isStableEnabled ? 1.0 : 4.0));

            }

            {

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

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

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

            }

            {

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

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

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

            }

        }

    }

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

    static class DoubleArrayDim3 {

        public @Stable double[][][] v;

        public static final DoubleArrayDim3 c = new DoubleArrayDim3();

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

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

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

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

        public static void test() throws Exception {

            {

                c.v = new double[1][1][1]; c.v[0][0][0] = 1.0; double val1 = get();

                                           c.v[0][0][0] = 2.0; double val2 = get();

                assertEquals(val1, 1.0);

                assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));

                c.v = new double[1][1][1]; c.v[0][0][0] = 3.0; double val3 = get();

                assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));

                c.v[0] = new double[1][1]; c.v[0][0][0] = 4.0; double val4 = get();

                assertEquals(val4, (isStableEnabled ? 1.0 : 4.0));

                c.v[0][0] = new double[1]; c.v[0][0][0] = 5.0; double val5 = get();

                assertEquals(val5, (isStableEnabled ? 1.0 : 5.0));

            }

            {

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

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

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

            }

            {

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

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

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

            }

            {

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

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

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

            }

        }

    }

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

    static class DoubleArrayDim4 {

        public @Stable double[][][][] v;

        public static final DoubleArrayDim4 c = new DoubleArrayDim4();

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

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

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

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

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

        public static void test() throws Exception {

            {

                c.v = new double[1][1][1][1]; c.v[0][0][0][0] = 1.0; double val1 = get();

                                              c.v[0][0][0][0] = 2.0; double val2 = get();

                assertEquals(val1, 1.0);

                assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));

                c.v = new double[1][1][1][1]; c.v[0][0][0][0] = 3.0; double val3 = get();

                assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));

                c.v[0] = new double[1][1][1]; c.v[0][0][0][0] = 4.0; double val4 = get();

                assertEquals(val4, (isStableEnabled ? 1.0 : 4.0));

                c.v[0][0] = new double[1][1]; c.v[0][0][0][0] = 5.0; double val5 = get();

                assertEquals(val5, (isStableEnabled ? 1.0 : 5.0));

                c.v[0][0][0] = new double[1]; c.v[0][0][0][0] = 6.0; double val6 = get();

                assertEquals(val6, (isStableEnabled ? 1.0 : 6.0));

            }

            {

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

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

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

            }

            {

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

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

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

            }

            {

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

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

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

            }

            {

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

                c.v = new double[1][1][1][1]; double[][][][] 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 double get() { return ((double[])c.v)[0]; }

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

        public static void test() throws Exception {

            {

                c.v = new double[1]; ((double[])c.v)[0] = 1.0; double val1 = get();

                                     ((double[])c.v)[0] = 2.0; double val2 = get();

                assertEquals(val1, 1.0);

                assertEquals(val2, 2.0);

            }

            {

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

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

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

            }

        }

    }

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

    static class ObjectArrayLowerDim1 {

        public @Stable Object[] v;

        public static final ObjectArrayLowerDim1 c = new ObjectArrayLowerDim1();

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

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

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

        public static void test() throws Exception {

            {

                c.v = new double[1][1]; ((double[][])c.v)[0][0] = 1.0; double val1 = get();

                                        ((double[][])c.v)[0][0] = 2.0; double val2 = get();

                assertEquals(val1, 1.0);

                assertEquals(val2, 2.0);

            }

            {

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

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

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

            }

            {

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

                c.v = new double[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 double get() { return ((double[][][])c.v)[0][0][0]; }

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

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

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

        public static void test() throws Exception {

            {

                c.v = new double[1][1][1]; ((double[][][])c.v)[0][0][0] = 1.0; double val1 = get();

                                           ((double[][][])c.v)[0][0][0] = 2.0; double val2 = get();

                assertEquals(val1, 1.0);

                assertEquals(val2, 2.0);

            }

            {

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

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

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

            }

            {

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

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

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

            }

            {

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

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

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

            }

        }

    }

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

    static class NestedStableField {

        static class A {

            public @Stable double a;

        }

        public @Stable A v;

        public static final NestedStableField c = new NestedStableField();

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

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

        public static void test() throws Exception {

            {

                c.v = new A(); c.v.a = 1.0; A val1 = get();

                               c.v.a = 2.0; A val2 = get();

                assertEquals(val1.a, 2.0);

                assertEquals(val2.a, 2.0);

            }

            {

                c.v = new A(); c.v.a = 1.0; double val1 = get1();

                               c.v.a = 2.0; double val2 = get1();

                c.v = new A(); c.v.a = 3.0; double val3 = get1();

                assertEquals(val1, 1.0);

                assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));

                assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));

            }

        }

    }

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

    static class NestedStableField1 {

        static class A {

            public @Stable double 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 double 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;

                               c.v.a = 1.0; c.v.next.a = 1.0; A val1 = get();

                               c.v.a = 2.0; c.v.next.a = 2.0; A val2 = get();

                assertEquals(val1.a, 2.0);

                assertEquals(val2.a, 2.0);

            }

            {

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

                               c.v.a = 1.0; double val1 = get1();

                               c.v.a = 2.0; double val2 = get1();

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

                               c.v.a = 3.0; double val3 = get1();

                assertEquals(val1, 1.0);

                assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));

                assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));

            }