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20ea218ce5
Co-authored-by: Richard Reingruber <rrich@openjdk.org> Reviewed-by: pchilanomate, rrich, vlivanov, never
98 lines
2.8 KiB
Java
98 lines
2.8 KiB
Java
/*
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* Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package compiler.jsr292;
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import java.lang.invoke.MethodHandle;
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import java.lang.invoke.MethodHandles;
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import java.lang.invoke.MethodHandles.Lookup;
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import java.lang.invoke.MethodType;
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import java.lang.reflect.Method;
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/*
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* @test
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* @bug 8336042
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* @library /test/lib /
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*
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* @run main/bootclasspath/othervm -Xbatch -XX:-TieredCompilation compiler.jsr292.MHDeoptTest
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*
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*/
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public class MHDeoptTest {
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static int xx = 0;
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public static void main(String[] args) throws Throwable {
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MethodHandle mh1 = MethodHandles.lookup().findStatic(MHDeoptTest.class, "body1", MethodType.methodType(int.class));
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MethodHandle mh2 = MethodHandles.lookup().findStatic(MHDeoptTest.class, "body2", MethodType.methodType(int.class));
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MethodHandle[] arr = new MethodHandle[] {mh2, mh1};
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for (MethodHandle mh : arr) {
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for (int i = 1; i < 50_000; i++) {
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xx = i;
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mainLink(mh);
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}
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}
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}
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static int mainLink(MethodHandle mh) throws Throwable {
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return (int)mh.invokeExact();
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}
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static int cnt = 1000;
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static int body1() {
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int limit = 0x7fff;
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// uncommon trap
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if (xx == limit) {
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// OSR
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for (int i = 0; i < 50_000; i++) {
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}
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++cnt;
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++xx;
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}
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if (xx == limit + 1) {
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return cnt + 1;
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}
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return cnt;
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}
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static int body2() {
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int limit = 0x7fff;
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int dummy = 0;
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// uncommon trap
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if (xx == limit) {
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// OSR
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for (int i = 0; i < 50_000; i++) {
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}
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++cnt;
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++xx;
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}
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if (xx == limit + 1) {
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return cnt + 1;
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}
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return cnt;
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}
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}
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