jdk-24/test/hotspot/jtreg/compiler/escapeAnalysis/TestGetClass.java
Xin Liu 4076ca82d2 8151779: Some intrinsic flags could be replaced with one general flag
Add ControlIntrinsic switch

Reviewed-by: neliasso, phh
2020-06-23 10:40:26 -07:00

56 lines
2.2 KiB
Java

/*
* Copyright (c) 2019, 2020, 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 8218201
* @summary BCEscapeAnalyzer assigns wrong escape state to getClass return value.
* @run main/othervm -XX:-TieredCompilation -Xcomp -XX:+UnlockDiagnosticVMOptions -XX:DisableIntrinsic=_getClass
* -XX:CompileCommand=quiet -XX:CompileCommand=compileonly,compiler.escapeAnalysis.TestGetClass::test
* -XX:+PrintCompilation compiler.escapeAnalysis.TestGetClass
* @run main/othervm -XX:-TieredCompilation -Xcomp -XX:+UnlockDiagnosticVMOptions -XX:ControlIntrinsic=-_getClass
* -XX:CompileCommand=quiet -XX:CompileCommand=compileonly,compiler.escapeAnalysis.TestGetClass::test
* -XX:+PrintCompilation compiler.escapeAnalysis.TestGetClass
*/
package compiler.escapeAnalysis;
public class TestGetClass {
static Object obj = new Object();
public static boolean test() {
if (obj.getClass() == Object.class) {
synchronized (obj) {
return true;
}
}
return false;
}
public static void main(String[] args) {
if (!test()) {
throw new RuntimeException("Test failed");
}
}
}