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117 lines
3.8 KiB
Java
117 lines
3.8 KiB
Java
/*
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* Copyright (c) 2025, 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 id=all-flags-fixed-stress-seed
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* @bug 8371146
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* @summary Test where the pre_init was pinned before the pre-loop but after the
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* Auto_Vectorization_Check, and so it should not be used for the auto
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* vectorization aliasing check, to avoid a bad (circular) graph.
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* @requires vm.gc.Z
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* @run main/othervm
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* -XX:+IgnoreUnrecognizedVMOptions
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* -XX:CompileCommand=compileonly,*TestAliasingCheckPreLimitNotAvailable::test
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* -XX:-TieredCompilation
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* -Xcomp
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* -XX:+UseZGC
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* -XX:+UnlockDiagnosticVMOptions -XX:+StressLoopPeeling -XX:StressSeed=4
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* -XX:LoopUnrollLimit=48
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* compiler.loopopts.superword.TestAliasingCheckPreLimitNotAvailable
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*/
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/*
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* @test id=all-flags-no-stress-seed
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* @bug 8371146
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* @requires vm.gc.Z
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* @run main/othervm
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* -XX:+IgnoreUnrecognizedVMOptions
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* -XX:CompileCommand=compileonly,*TestAliasingCheckPreLimitNotAvailable::test
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* -XX:-TieredCompilation
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* -Xcomp
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* -XX:+UseZGC
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* -XX:+UnlockDiagnosticVMOptions -XX:+StressLoopPeeling
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* -XX:LoopUnrollLimit=48
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* compiler.loopopts.superword.TestAliasingCheckPreLimitNotAvailable
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*/
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/*
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* @test id=fewer-flags
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* @bug 8371146
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* @run main/othervm
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* -XX:+IgnoreUnrecognizedVMOptions
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* -XX:CompileCommand=compileonly,*TestAliasingCheckPreLimitNotAvailable::test
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* -XX:-TieredCompilation
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* -Xcomp
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* -XX:LoopUnrollLimit=48
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* compiler.loopopts.superword.TestAliasingCheckPreLimitNotAvailable
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*/
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/*
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* @test id=minimal-flags
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* @bug 8371146
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* @run main/othervm
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* -XX:+IgnoreUnrecognizedVMOptions
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* -XX:CompileCommand=compileonly,*TestAliasingCheckPreLimitNotAvailable::test
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* -XX:-TieredCompilation
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* -Xcomp
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* compiler.loopopts.superword.TestAliasingCheckPreLimitNotAvailable
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*/
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/*
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* @test id=vanilla
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* @bug 8371146
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* @run main compiler.loopopts.superword.TestAliasingCheckPreLimitNotAvailable
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*/
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package compiler.loopopts.superword;
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public class TestAliasingCheckPreLimitNotAvailable {
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static int sum;
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static boolean condition;
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static int zero;
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static int twoDimensional[][] = new int[20][20];
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static void test() {
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int innerCount = 0;
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int conditionCount = 0;
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int oneDimensional[] = new int[10];
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for (int i = 2; i > 0; --i) {
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for (int j = i; j < 10; j++) {
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innerCount += 1;
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oneDimensional[1] += innerCount;
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oneDimensional[j] += zero;
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if (condition) {
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conditionCount += 1;
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oneDimensional[1] += conditionCount;
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sum += oneDimensional[1];
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}
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twoDimensional[j] = twoDimensional[j + 1];
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}
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}
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}
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public static void main(String[] args) {
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test();
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}
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}
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