146 lines
4.0 KiB
Java
146 lines
4.0 KiB
Java
/*
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* Copyright (c) 2020, Red Hat, Inc. 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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/**
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* @test
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* @bug 8251527
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* @summary CTW: C2 (Shenandoah) compilation fails with SEGV due to unhandled catchproj == NUL
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* @requires vm.flavor == "server"
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* @requires vm.gc.Shenandoah
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*
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* @run main/othervm -XX:+UseShenandoahGC -XX:CompileOnly=TestLoadPinnedAfterCall.test -XX:CompileCommand=dontinline,TestLoadPinnedAfterCall.not_inlined -XX:-TieredCompilation -XX:-BackgroundCompilation TestLoadPinnedAfterCall
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*
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*/
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public class TestLoadPinnedAfterCall {
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private A staticField1;
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private static Object staticField2 = new Object();
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private static volatile int staticField3;
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private static int staticField4;
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static TestLoadPinnedAfterCall object = new TestLoadPinnedAfterCall();
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public static void main(String[] args) {
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final A a = new A();
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try {
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throw new Exception();
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} catch (Exception ex) {
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}
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for (int i = 0; i < 20_000; i++) {
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inlined(0, 0, 0);
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inlined(2, 0, 0);
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inlined(2, 2, 2);
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object.staticField1 = new A();
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test(true, a, a, false, 2, 2);
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test(false, a, a, true, 2, 2);
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test(false, a, a, false, 2, 2);
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object.staticField1 = a;
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test(true, a, a, false, 2, 2);
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test(false, a, a, true, 2, 2);
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test(false, a, a, false, 2, 2);
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}
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}
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private static void test(boolean flag, A a, A a2, boolean flag2, int i1, int i2) {
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int ii = 1;
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for (; ii < 2; ii *= 2) {
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}
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ii = ii / 2;
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i1 = 0;
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for (; i1 < 2; i1 += ii) {
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for (int i = 0; i < 2; i += ii) {
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}
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}
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i2 = 0;
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for (; i2 < 2; i2 += ii) {
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for (int i = 0; i < 2; i += ii) {
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for (int j = 0; j < 2; j += ii) {
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}
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}
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}
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TestLoadPinnedAfterCall obj = object;
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if (obj == null) {
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}
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counter = 10;
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for (;;) {
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synchronized (staticField2) {
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}
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int i = 0;
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for (; i < 2; i += ii) {
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}
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inlined(i, i1, i2);
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if (flag) {
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staticField3 = 0x42;
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break;
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}
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try {
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not_inlined();
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if (flag2) {
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break;
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}
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} catch (Throwable throwable) {
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if (a == obj.staticField1) {
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staticField4 = 0x42;
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}
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break;
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}
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}
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if (a2 == obj.staticField1) {
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staticField4 = 0x42;
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}
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}
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private static void inlined(int i, int j, int k) {
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if (i == 2) {
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if (j == 2) {
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staticField3 = 0x42;
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}
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if (k == 2) {
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staticField3 = 0x42;
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}
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}
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}
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static int counter = 0;
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private static void not_inlined() {
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counter--;
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if (counter <= 0) {
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throw new RuntimeException();
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}
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}
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private static class A {
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}
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}
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