提交 e7f8bfe1 编写于 作者: R roland

8175097: [TESTBUG] 8174164 fix missed the test

Reviewed-by: kvn
上级 17531575
/*
* Copyright (c) 2017, Red Hat, Inc. 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 8174164
* @summary SafePointNode::_replaced_nodes breaks with irreducible loops
* @run main/othervm -XX:-BackgroundCompilation TestReplacedNodesOSR
*
*/
public class TestReplacedNodesOSR {
static Object dummy;
static interface I {
}
static class A implements I {
}
static final class MyException extends Exception {
}
static final A obj = new A();
static I static_field() { return obj; }
// When OSR compiled, this method has an irreducible loop
static void test(int v, MyException e) {
int i = 0;
for (;;) {
if (i == 1000) {
break;
}
try {
if ((i%2) == 0) {
int j = 0;
for (;;) {
j++;
if (i+j != v) {
if (j == 1000) {
break;
}
} else {
A a = (A)static_field();
// replaced node recorded here
throw e;
}
}
}
} catch(MyException ex) {
}
i++;
// replaced node applied on return of the method
// replaced node used here
dummy = static_field();
}
}
static public void main(String[] args) {
for (int i = 0; i < 1000; i++) {
test(1100, new MyException());
}
}
}
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