e19479825a
Update hs compiler tests to use vm.compMode instead of their own logic and to get VM mode using j.t.l.Platform Reviewed-by: kvn, dpochepk
82 lines
2.6 KiB
Java
82 lines
2.6 KiB
Java
/*
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* Copyright (c) 2015, 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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/**
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* @test
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* @bug 8073956
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* @summary Tests C2 EA with allocated object escaping through a call.
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*
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* @run main/othervm
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* -XX:CompileCommand=dontinline,compiler.escapeAnalysis.TestEscapeThroughInvoke::create
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* compiler.escapeAnalysis.TestEscapeThroughInvoke
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*/
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package compiler.escapeAnalysis;
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public class TestEscapeThroughInvoke {
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private A a;
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public static void main(String[] args) {
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TestEscapeThroughInvoke test = new TestEscapeThroughInvoke();
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test.a = new A(42);
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// Make sure run gets compiled by C2
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for (int i = 0; i < 100_000; ++i) {
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test.run();
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}
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}
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private void run() {
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// Allocate something to trigger EA
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new Object();
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// Create a new escaping instance of A and
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// verify that it is always equal to 'a.saved'.
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A escapingA = create(42);
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a.check(escapingA);
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}
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// Create and return a new instance of A that escaped through 'A::saveInto'.
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// The 'dummy' parameters are needed to avoid EA skipping the methods.
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private A create(Integer dummy) {
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A result = new A(dummy);
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result.saveInto(a, dummy); // result escapes into 'a' here
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return result;
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}
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static class A {
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private A saved;
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public A(Integer dummy) {
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}
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public void saveInto(A other, Integer dummy) {
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other.saved = this;
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}
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public void check(A other) {
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if (this.saved != other) {
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throw new RuntimeException("TEST FAILED: Objects not equal.");
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}
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}
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}
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}
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