c492f4cde5
Design StoreCMNode::Ideal to promote its oopStore input if the input is a MergeMem node Reviewed-by: kvn, never
52 lines
1.7 KiB
Java
52 lines
1.7 KiB
Java
/*
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* Copyright 2009 Sun Microsystems, 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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/**
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* @test
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* @bug 6877254
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* @summary Implement StoreCMNode::Ideal to promote its OopStore above the MergeMem
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*
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* @run main/othervm -server -Xcomp -XX:+UseConcMarkSweepGC Test
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*/
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public class Test {
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static byte var_1;
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static String var_2 = "";
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static byte var_3;
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static float var_4 = 0;
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public static void main(String[] args) {
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int i = 0;
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for (String var_tmp = var_2; i < 11; var_1 = 0, i++) {
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var_2 = var_2;
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var_4 *= (var_4 *= (var_3 = 0));
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}
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System.out.println("var_1 = " + var_1);
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System.out.println("var_2 = " + var_2);
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System.out.println("var_3 = " + var_3);
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System.out.println("var_4 = " + var_4);
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}
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}
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