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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.
*
*/
import sun.hotspot.code.NMethod;
/*
* @test GetNMethodTest
* @bug 8038240
* @library /testlibrary /testlibrary/whitebox
* @build GetNMethodTest
* @run main ClassFileInstaller sun.hotspot.WhiteBox
* @run main/othervm -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,SimpleTestCase$Helper::* GetNMethodTest
* @summary testing of WB::getNMethod()
* @author igor.ignatyev@oracle.com
*/
public class GetNMethodTest extends CompilerWhiteBoxTest {
public static void main(String[] args) throws Exception {
CompilerWhiteBoxTest.main(GetNMethodTest::new, args);
}
private GetNMethodTest(TestCase testCase) {
super(testCase);
// to prevent inlining of #method
WHITE_BOX.testSetDontInlineMethod(method, true);
}
@Override
protected void test() throws Exception {
checkNotCompiled();
compile();
checkCompiled();
NMethod nmethod = NMethod.get(method, testCase.isOsr());
if (IS_VERBOSE) {
System.out.println("nmethod = " + nmethod);
}
if (nmethod == null) {
throw new RuntimeException("nmethod of compiled method is null");
}
if (nmethod.insts.length == 0) {
throw new RuntimeException("compiled method's instructions is empty");
}
deoptimize();
checkNotCompiled();
nmethod = NMethod.get(method, testCase.isOsr());
if (nmethod != null) {
throw new RuntimeException("nmethod of non-compiled method isn't null");
}
}
}
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