79 lines
2.6 KiB
Java
79 lines
2.6 KiB
Java
/*
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* Copyright (c) 2020, 2021, Huawei Technologies Co., Ltd. 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 8243670
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* @summary Unexpected test result caused by C2 MergeMemNode::Ideal
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* @requires vm.compiler2.enabled
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*
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* @run main/othervm -Xcomp -XX:-SplitIfBlocks
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* -XX:CompileOnly=compiler.c2.TestReplaceEquivPhis::test
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* -XX:-BackgroundCompilation compiler.c2.TestReplaceEquivPhis
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*/
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package compiler.c2;
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public class TestReplaceEquivPhis {
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public static final int N = 400;
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public static volatile int instanceCount = 0;
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public int iFld = 0;
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public static int iArrFld[] = new int[N];
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public int test() {
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int v = 0;
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boolean bArr[] = new boolean[N];
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for (int i = 1; i < 344; i++) {
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iFld = i;
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for (int j = 2; j <177 ; j++) {
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v = iFld;
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iFld = TestReplaceEquivPhis.instanceCount;
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TestReplaceEquivPhis.iArrFld[i] = 0;
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iFld += TestReplaceEquivPhis.instanceCount;
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TestReplaceEquivPhis.iArrFld[i] = 0;
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bArr[j] = false;
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TestReplaceEquivPhis.instanceCount = 1;
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for (int k = 1; k < 3; k++) {
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// do nothing
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}
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}
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}
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return v;
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}
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public static void main(String[] args) {
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TestReplaceEquivPhis obj = new TestReplaceEquivPhis();
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for (int i = 0; i < 5; i++) {
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int result = obj.test();
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if (result != 2) {
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throw new RuntimeException("Test failed.");
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}
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}
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System.out.println("Test passed.");
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}
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}
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