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/*
* Copyright (c) 2024, 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8334421
* @summary C2 incorrectly marks not-escaped locks for elimination after
* coarsened locks were eliminated and created unbalanced regions.
* @requires vm.compMode != "Xint"
* @run main/othervm -XX:-TieredCompilation TestCoarsenedAndNotEscapedLocksElimination
* @run main TestCoarsenedAndNotEscapedLocksElimination
*/
import java.util.Vector;
class TestVector extends Vector<Object> {
TestVector() {
super();
}
TestVector(int initialCapacity) {
super(initialCapacity);
}
TestVector(int initialCapacity, int capacityIncrement) {
super(initialCapacity, capacityIncrement);
}
Object[] getElementData () {
return elementData; // access protected field
}
}
public class TestCoarsenedAndNotEscapedLocksElimination {
public static void main(String[] strArr) {
TestCoarsenedAndNotEscapedLocksElimination tc = new TestCoarsenedAndNotEscapedLocksElimination();
String result = null;
for (int i = 0; i < 12000; ++i) {
result = tc.test();
if (result != null) break;
}
System.out.println(result == null? "passed" : result);
}
int [][] vector_types = {
{-1, -1},
{0, -1},
{1, -1},
{2, -1},
{1025, -1},
{0, -2},
{1, -2},
{2, -2},
{1025, -2},
{0, 0},
{1, 0},
{2, 0},
{1025, 0},
{0, 1},
{1, 1},
{2, 1},
{1025, 1},
{0, 1025 },
{1, 1025 },
{2, 1025 },
{1025, 1025 }
};
Object [] elems = {
null,
new Object(),
new Vector(),
new Object[0]
};
int cntr = 0, mode = 0;
void reset() {
cntr = 0;
mode = 0;
}
TestVector nextVector() {
if (cntr == vector_types.length) {
return null;
} else {
TestVector vect;
if (vector_types[cntr][0] < 0) {
vect = new TestVector();
} else if (vector_types[cntr][1] == -2) {
vect = new TestVector(vector_types[cntr][0]);
} else {
vect = new TestVector(vector_types[cntr][0], vector_types[cntr][1]);
}
if (mode == 1) {
vect.addElement(null);
vect.addElement(new Object());
vect.addElement(new Vector());
vect.addElement(new Object[0]);
} else if (mode == 2) {
int cap = vect.capacity();
vect.addElement(null);
for (int i = 0; i < cap; i++) {
vect.addElement(new Object());
}
}
if (++mode == 3) {
mode = 0;
cntr++;
}
return vect;
}
}
public String test() {
reset();
TestVector vect = (TestVector)nextVector();
while (vect != null) {
Object [] backup_array = new Object[vect.size()];
System.arraycopy(vect.getElementData(),0,backup_array,0,vect.size());
int old_size = vect.size();
vect.setSize(vect.size());
if (vect.size() != old_size) {
return "Vector: "+vect+" size changed after setSize(size())";
}
for (int i = 0; i < vect.size(); i++) {
if (vect.elementAt(i) != backup_array[i]) {
return "Vector: "+vect+" : "+i+"th element changed after setSize(size())";
}
}
old_size = vect.size();
vect.setSize(vect.size()*2);
if (vect.size() != old_size*2) {
return "Vector: "+vect+" size incorrectly changed after setSize(size()*2)";
}
for (int i = 0; i < old_size; i++) {
if (vect.elementAt(i) != backup_array[i]) {
return "Vector: "+vect+" : "+i+"th element changed after setSize(size()*2)";
}
}
for (int i = old_size; i < old_size*2; i++) {
if (vect.elementAt(i) != null) {
return "Vector: "+vect+" : "+i+"th element not null after setSize(size()*2)";
}
}
old_size = vect.size();
int old_cap = vect.capacity();
vect.setSize(vect.capacity()+1);
if (vect.size() != old_cap+1) {
return "Vector: "+vect+" size incorrectly changed after setSize(capacity()+1)";
}
for (int i = 0; i < old_size && i < backup_array.length; i++) {
if (vect.elementAt(i) != backup_array[i]) {
return "Vector: "+vect+" : "+i+"th element changed after setSize(capacity()+1)";
}
}
for (int i = old_size; i < old_cap + 1; i++) {
if (vect.elementAt(i) != null) {
return "Vector: "+vect+" : "+i+"th element not null after setSize(capacity()+1)";
}
}
old_size = vect.size();
vect.setSize(vect.size()/2);
if (vect.size() != old_size/2) {
return "Vector: "+vect+" size incorrectly changed after setSize(size()/2)";
}
for (int i = 0; i < old_size/2 && i < backup_array.length; i++) {
if (vect.elementAt(i) != backup_array[i]) {
return "Vector: "+vect+" : "+i+"th element changed after setSize(size()/2)";
}
}
vect = nextVector();
}
return null;
}
}
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