80 lines
2.7 KiB
Java
80 lines
2.7 KiB
Java
/*
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* Copyright (c) 2024, 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 8340454
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* @summary Check that Reduce Allocation Merges doesn't crash when
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* a reducible Phi becomes irreducible after the last of
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* its SR inputs is flagged as NSR.
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* @run main/othervm -XX:CompileCommand=dontinline,*TestReduceAllocationAndNonReduciblePhi*::test
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* -XX:CompileCommand=compileonly,*TestReduceAllocationAndNonReduciblePhi*::test
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* -XX:CompileCommand=compileonly,*Picture*::*
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* -XX:CompileCommand=compileonly,*Point*::*
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* -XX:CompileCommand=inline,*Picture*::*
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* -XX:CompileCommand=inline,*Point*::*
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* -XX:CompileCommand=exclude,*::dummy*
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* -Xbatch
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* -server
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* compiler.escapeAnalysis.TestReduceAllocationAndNonReduciblePhi
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*
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* @run main compiler.escapeAnalysis.TestReduceAllocationAndNonReduciblePhi
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*/
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package compiler.escapeAnalysis;
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public class TestReduceAllocationAndNonReduciblePhi {
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public static void main(String args[]) {
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int result = 0;
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for (int i = 0; i < 20000; i++) {
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result += test(i % 2 == 0, i % 3);
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}
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System.out.println("Result is = " + result);
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}
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public static int test(boolean flag1, int pos) {
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Point p0 = new Point();
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Point p1 = flag1 ? null : p0;
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Picture pic = new Picture();
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pic.p = p0;
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Picture[] ps = new Picture[5];
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ps[pos] = pic;
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return p1 != null ? dummy1() : dummy2();
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}
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public static int dummy1() { return 1; }
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public static int dummy2() { return 2; }
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private static class Picture {
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public Point p;
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}
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private static class Point { }
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}
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