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/*
* 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.
*
* 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 8011646
* @summary SEGV in compiled code with loop predication
*
* @run main/othervm -XX:-TieredCompilation
* -XX:CompileCommand=compileonly,java.lang.Object::hashCode
* -XX:CompileCommand=compileonly,compiler.intrinsics.object.TestHashCode::m1
* compiler.intrinsics.object.TestHashCode
*/
package compiler.intrinsics.object;
public class TestHashCode {
static class A {
int i;
}
static class B extends A {
}
static boolean crash = false;
static A m2() {
if (crash) {
return null;
}
return new A();
}
static int m1(A aa) {
int res = 0;
for (int i = 0; i < 10; i++) {
A a = m2();
int j = a.i;
if (aa instanceof B) {
}
res += a.hashCode();
}
return res;
}
public static void main(String[] args) {
A a = new A();
for (int i = 0; i < 20000; i++) {
m1(a);
}
crash = true;
try {
m1(a);
} catch (NullPointerException e) {
System.out.println("Test passed");
}
}
}
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