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/*
* Copyright (c) 2016, 2019, 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
* @requires vm.aot
* @library /test/lib /testlibrary /
* @modules java.base/jdk.internal.misc
* @build compiler.aot.DeoptimizationTest
* compiler.aot.AotCompiler
* @run driver ClassFileInstaller sun.hotspot.WhiteBox
* sun.hotspot.WhiteBox$WhiteBoxPermission
* @run driver compiler.aot.AotCompiler -libname libDeoptimizationTest.so
* -class compiler.aot.DeoptimizationTest
* -compile compiler.aot.DeoptimizationTest.testMethod()D
* -extraopt -XX:-UseCompressedOops
* @run main/othervm -Xmixed -XX:+UnlockExperimentalVMOptions -XX:+UseAOT -XX:+TieredCompilation
* -XX:-UseCompressedOops
* -XX:CompileCommand=dontinline,compiler.aot.DeoptimizationTest::*
* -XX:AOTLibrary=./libDeoptimizationTest.so -Xbootclasspath/a:.
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* compiler.aot.DeoptimizationTest
* @summary check if aot code can be deoptimized
*/
package compiler.aot;
import java.lang.reflect.Method;
import jdk.test.lib.Asserts;
import jdk.test.lib.Utils;
import sun.hotspot.WhiteBox;
import compiler.whitebox.CompilerWhiteBoxTest;
public final class DeoptimizationTest {
private static final String TEST_METHOD = "testMethod";
private static final WhiteBox WB = WhiteBox.getWhiteBox();
private final Method testMethod;
private DeoptimizationTest() {
try {
testMethod = getClass().getDeclaredMethod(TEST_METHOD);
} catch (NoSuchMethodException e) {
throw new Error("TEST BUG: no test method found", e);
}
}
public static void main(String args[]) {
new DeoptimizationTest().test();
}
private double testMethod() {
return 42 / 0;
}
private void test() {
Asserts.assertTrue(WB.isMethodCompiled(testMethod),
"Method expected to be compiled");
Asserts.assertEQ(WB.getMethodCompilationLevel(testMethod),
CompilerWhiteBoxTest.COMP_LEVEL_AOT,
"Unexpected compilation level at start");
Utils.runAndCheckException(() -> testMethod(), ArithmeticException.class);
Asserts.assertFalse(WB.isMethodCompiled(testMethod),
"Method is unexpectedly compiled after deoptimization");
Asserts.assertEQ(WB.getMethodCompilationLevel(testMethod), 0,
"Unexpected compilation level after deoptimization");
}
}
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