111 lines
4.1 KiB
Java
111 lines
4.1 KiB
Java
/*
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* Copyright (c) 2017, 2019, Red Hat, 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 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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/*
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* @test
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* @summary Test that loop mining arguments are sane
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* @requires vm.gc.Shenandoah
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* @requires vm.flavor == "server"
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* @library /test/lib
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* @run driver TestLoopMiningArguments
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*/
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import java.util.*;
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import jdk.test.lib.Asserts;
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.process.OutputAnalyzer;
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public class TestLoopMiningArguments {
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public static void testWith(String msg, boolean cls, int iters, String... args) throws Exception {
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String[] cmds = Arrays.copyOf(args, args.length + 3);
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cmds[args.length] = "-Xmx128m";
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cmds[args.length + 1] = "-XX:+PrintFlagsFinal";
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cmds[args.length + 2] = "-version";
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OutputAnalyzer output = ProcessTools.executeLimitedTestJava(cmds);
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output.shouldHaveExitValue(0);
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output.shouldContain("UseCountedLoopSafepoints");
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output.shouldContain("LoopStripMiningIter");
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Asserts.assertEQ(output.firstMatch("(.+?) UseCountedLoopSafepoints.+?= (.+?) (.+?)", 2), Boolean.toString(cls), msg + ", but got wrong CLS");
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Asserts.assertEQ(output.firstMatch("(.+?) LoopStripMiningIter.+?= (.+?) (.+?)", 2), String.valueOf(iters), msg + ", but got wrong LSM");
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}
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public static void main(String[] args) throws Exception {
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testWith("Shenandoah should have CLS and LSM enabled",
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true, 1000,
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"-XX:+UnlockExperimentalVMOptions",
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"-XX:+UseShenandoahGC"
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);
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testWith("Shenandoah with +CLS should set LSM = 1",
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true, 1,
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"-XX:+UnlockExperimentalVMOptions",
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"-XX:+UseShenandoahGC",
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"-XX:+UseCountedLoopSafepoints"
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);
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testWith("Shenandoah GC with +CLS should not override LSM>1",
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true, 10,
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"-XX:+UnlockExperimentalVMOptions",
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"-XX:+UseShenandoahGC",
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"-XX:LoopStripMiningIter=10",
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"-XX:+UseCountedLoopSafepoints"
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);
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testWith("Shenandoah GC with +CLS should not override LSM=1",
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true, 1,
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"-XX:+UnlockExperimentalVMOptions",
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"-XX:+UseShenandoahGC",
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"-XX:LoopStripMiningIter=1",
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"-XX:+UseCountedLoopSafepoints"
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);
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testWith("Shenandoah GC with +CLS should override LSM=0 to 1",
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true, 1,
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"-XX:+UnlockExperimentalVMOptions",
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"-XX:+UseShenandoahGC",
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"-XX:LoopStripMiningIter=0",
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"-XX:+UseCountedLoopSafepoints"
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);
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testWith("Shenandoah GC with -CLS should set LSM = 0",
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false, 0,
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"-XX:+UnlockExperimentalVMOptions",
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"-XX:+UseShenandoahGC",
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"-XX:-UseCountedLoopSafepoints"
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);
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testWith("Shenandoah GC with -CLS should override LSM to 0",
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false, 0,
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"-XX:+UnlockExperimentalVMOptions",
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"-XX:+UseShenandoahGC",
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"-XX:LoopStripMiningIter=10",
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"-XX:-UseCountedLoopSafepoints"
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);
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}
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}
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