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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

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 * 2 along with this work; if not, write to the Free Software Foundation,

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/**

 * @test

 * @bug 8031323

 * @summary Verify that objects promoted from eden space to survivor space after

 *          minor GC are aligned to SurvivorAlignmentInBytes.

 * @library /testlibrary /test/lib

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

 *          java.management

 * @build TestPromotionToSurvivor

 *        SurvivorAlignmentTestMain AlignmentHelper

 * @ignore 8129886

 * @run main ClassFileInstaller sun.hotspot.WhiteBox

 *                              sun.hotspot.WhiteBox$WhiteBoxPermission

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

 *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m

 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions

 *                   -XX:SurvivorAlignmentInBytes=32 -XX:OldSize=128m

 *                   -XX:MaxHeapSize=256m -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB

 *                   TestPromotionToSurvivor 10m 9 SURVIVOR

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

 *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m

 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions

 *                   -XX:SurvivorAlignmentInBytes=32 -XX:OldSize=128m

 *                   -XX:MaxHeapSize=256m -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB

 *                   TestPromotionToSurvivor 20m 47 SURVIVOR

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

 *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m

 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions

 *                   -XX:SurvivorAlignmentInBytes=64 -XX:OldSize=128m

 *                   -XX:MaxHeapSize=256m -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB

 *                   TestPromotionToSurvivor 8m 9 SURVIVOR

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

 *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m

 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions

 *                   -XX:SurvivorAlignmentInBytes=64 -XX:OldSize=128m

 *                   -XX:MaxHeapSize=256m -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB

 *                   TestPromotionToSurvivor 20m 87 SURVIVOR

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

 *                   -XX:+WhiteBoxAPI -XX:NewSize=256m -XX:MaxNewSize=256m

 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions

 *                   -XX:SurvivorAlignmentInBytes=128 -XX:OldSize=128m

 *                   -XX:MaxHeapSize=384m  -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB

 *                   TestPromotionToSurvivor 10m 9 SURVIVOR

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

 *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m

 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions

 *                   -XX:SurvivorAlignmentInBytes=128 -XX:OldSize=128m

 *                   -XX:MaxHeapSize=256m -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB

 *                   TestPromotionToSurvivor 20m 147 SURVIVOR

 */

public class TestPromotionToSurvivor {

    public static void main(String args[]) {

        SurvivorAlignmentTestMain test

                = SurvivorAlignmentTestMain.fromArgs(args);

        System.out.println(test);

        long expectedUsage = test.getExpectedMemoryUsage();

        test.baselineMemoryAllocation();

        SurvivorAlignmentTestMain.WHITE_BOX.fullGC();

        test.allocate();

        SurvivorAlignmentTestMain.WHITE_BOX.youngGC();

        test.verifyMemoryUsage(expectedUsage);

    }

}