hotspot/test/compiler/dependencies/MonomorphicObjectCall/TestMonomorphicObjectCall.java
author weijun
Thu, 11 May 2017 07:33:23 +0800
changeset 45063 0909d3bcbacb
parent 40059 c2304140ed64
permissions -rw-r--r--
8179389: X509Certificate generateCRLs is extremely slow using a PEM crl list Reviewed-by: mullan

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @bug 8050079
 * @summary Compiles a monomorphic call to finalizeObject() on a modified java.lang.Object to test C1 CHA.
 *
 * @build java.base/java.lang.Object
 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -Xcomp -XX:-VerifyDependencies
 *                   -XX:TieredStopAtLevel=1
 *                   -XX:CompileCommand=compileonly,compiler.dependencies.MonomorphicObjectCall.TestMonomorphicObjectCall::callFinalize
 *                   -XX:CompileCommand=compileonly,java.lang.Object::finalizeObject
 *                   compiler.dependencies.MonomorphicObjectCall.TestMonomorphicObjectCall
 */

package compiler.dependencies.MonomorphicObjectCall;

public class TestMonomorphicObjectCall {

    private static void callFinalize(Object object) throws Throwable {
        // Call modified version of java.lang.Object::finalize() that is
        // not overridden by any subclass. C1 CHA should mark the call site
        // as monomorphic and inline the method.
        object.finalizeObject();
    }

    public static void main(String[] args) throws Throwable {
        // Trigger compilation of 'callFinalize'
        callFinalize(new Object());
    }
}