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59 lines
2.0 KiB
Java
59 lines
2.0 KiB
Java
/*
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* Copyright (c) 2026, 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.escapeAnalysis;
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import java.util.Objects;
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/*
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* @test
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* @bug 8374435
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* @summary assert during escape analysis when splitting a Load through a Phi because the input of
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* the result Phi is a Load not from an AddP
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* @run main/othervm -XX:-UseOnStackReplacement -XX:-UseCompressedOops ${test.main.class}
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*/
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public class TestSplitLoadThroughPhiDuringEA {
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static class Holder {
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Object o;
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}
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public static void main(String[] args) {
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Object o = new Object();
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Holder h = new Holder();
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for (int i = 0; i < 20000; i++) {
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test(true, h, o);
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test(false, h, o);
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}
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}
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private static Object test(boolean b, Holder h, Object o) {
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h = Objects.requireNonNull(h);
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if (b) {
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h = new Holder();
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// This access has the pattern LoadP -> LoadP, which upsets the compiler because the
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// pointer input of a LoadP is not an AddP
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h.o = o.getClass();
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}
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return h.o;
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}
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}
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