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test/compiler/EscapeAnalysis/TestUnsafePutAddressNullObjMustNotEscape.java@3820a7d64760 (annotated)

test/compiler/EscapeAnalysis/TestUnsafePutAddressNullObjMustNotEscape.java

Wed, 20 May 2015 09:07:36 -0400

author

skovalev

date

Wed, 20 May 2015 09:07:36 -0400

changeset 7871

3820a7d64760

parent 0

f90c822e73f8

permissions

-rw-r--r--

8078834: [TESTBUG] Tests fails on ARM64 due to unknown hardware
Reviewed-by: dholmes, adinn

aoqi@0	1	/*
aoqi@0	2	* Copyright 2014 SAP AG. All Rights Reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*/
aoqi@0	23
aoqi@0	24	/**
aoqi@0	25	* @test
aoqi@0	26	* @bug 8038048
aoqi@0	27	* @summary assert(null_obj->escape_state() == PointsToNode::NoEscape,etc)
aoqi@0	28	* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+DoEscapeAnalysis -XX:-TieredCompilation -Xbatch TestUnsafePutAddressNullObjMustNotEscape
aoqi@0	29	* @author Richard Reingruber richard DOT reingruber AT sap DOT com
aoqi@0	30	*/
aoqi@0	31
aoqi@0	32	import java.lang.reflect.Field;
aoqi@0	33	import sun.misc.Unsafe;
aoqi@0	34
aoqi@0	35	public class TestUnsafePutAddressNullObjMustNotEscape {
aoqi@0	36
aoqi@0	37	public static Unsafe usafe;
aoqi@0	38	public static long mem;
aoqi@0	39	public static long checksum;
aoqi@0	40
aoqi@0	41	public static void main(String[] args) throws Exception {
aoqi@0	42	System.out.println("EXECUTING test.");
aoqi@0	43
aoqi@0	44	{
aoqi@0	45	System.out.println("Acquiring sun.misc.Unsafe.theUnsafe using reflection.");
aoqi@0	46	getUnsafe();
aoqi@0	47	System.out.println("Allocating raw memory.");
aoqi@0	48	mem = (usafe.allocateMemory(1024) + 8L) & ~7L;
aoqi@0	49	System.out.println("Triggering JIT compilation of the test method");
aoqi@0	50	triggerJitCompilationOfTestMethod();
aoqi@0	51	}
aoqi@0	52
aoqi@0	53	System.out.println("SUCCESSFULLY passed test.");
aoqi@0	54	}
aoqi@0	55
aoqi@0	56	public static void triggerJitCompilationOfTestMethod() {
aoqi@0	57	long sum = 0;
aoqi@0	58	for (int ii = 50000; ii >= 0; ii--) {
aoqi@0	59	sum = testMethod();
aoqi@0	60	}
aoqi@0	61	checksum = sum;
aoqi@0	62	}
aoqi@0	63
aoqi@0	64	public static class IDGen {
aoqi@0	65	private static long id;
aoqi@0	66	public long nextId() {
aoqi@0	67	return id++;
aoqi@0	68	}
aoqi@0	69	}
aoqi@0	70
aoqi@0	71	public static long testMethod() {
aoqi@0	72	// dummy alloc to trigger escape analysis
aoqi@0	73	IDGen gen = new IDGen();
aoqi@0	74	// StoreP of null_obj to raw mem triggers assertion in escape analysis
aoqi@0	75	usafe.putAddress(mem, 0L);
aoqi@0	76	return gen.nextId();
aoqi@0	77	}
aoqi@0	78
aoqi@0	79	private static void getUnsafe() throws Exception {
aoqi@0	80	Field field = sun.misc.Unsafe.class.getDeclaredField("theUnsafe");
aoqi@0	81	field.setAccessible(true);
aoqi@0	82	usafe = (sun.misc.Unsafe) field.get(null);
aoqi@0	83	}
aoqi@0	84	}