104 lines
4.5 KiB
Java
104 lines
4.5 KiB
Java
/*
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* Copyright (c) 2020, 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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* @test id=G1
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* @bug 8241486
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* @summary G1/Z give warning when using LoopStripMiningIter and turn off LoopStripMiningIter (0)
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* @requires vm.flagless
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* @requires vm.flavor == "server" & !vm.graal.enabled
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* @requires vm.gc.G1
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* @library /test/lib
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* @run driver TestNoWarningLoopStripMiningIterSet G1
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*/
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/*
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* @test id=Shenandoah
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* @bug 8241486
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* @summary G1/Z give warning when using LoopStripMiningIter and turn off LoopStripMiningIter (0)
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* @requires vm.flagless
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* @requires vm.flavor == "server" & !vm.graal.enabled
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* @requires vm.gc.Shenandoah
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* @library /test/lib
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* @run driver TestNoWarningLoopStripMiningIterSet Shenandoah
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*/
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/*
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* @test id=Z
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* @bug 8241486
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* @summary G1/Z give warning when using LoopStripMiningIter and turn off LoopStripMiningIter (0)
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* @requires vm.flagless
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* @requires vm.flavor == "server" & !vm.graal.enabled
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* @requires vm.gc.Z
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* @library /test/lib
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* @run driver TestNoWarningLoopStripMiningIterSet Z
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*/
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/*
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* @test id=Epsilon
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* @bug 8241486
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* @summary G1/Z give warning when using LoopStripMiningIter and turn off LoopStripMiningIter (0)
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* @requires vm.flagless
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* @requires vm.flavor == "server" & !vm.graal.enabled
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* @requires vm.gc.Epsilon
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* @library /test/lib
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* @run driver TestNoWarningLoopStripMiningIterSet Epsilon
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*/
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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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import java.util.function.Consumer;
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import java.util.Arrays;
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import java.util.List;
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public class TestNoWarningLoopStripMiningIterSet {
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static final String CLSOnLSMEqualZero = "When counted loop safepoints are enabled, LoopStripMiningIter must be at least 1 (a safepoint every 1 iteration): setting it to 1";
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static final String CLSOffLSMGreaterZero = "Disabling counted safepoints implies no loop strip mining: setting LoopStripMiningIter to 0";
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public static void testWith(Consumer<OutputAnalyzer> check, String msg, boolean cls, int iters, String... args) throws Exception {
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String[] cmds = new String[args.length + 3];
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cmds[0] = "-XX:+UnlockExperimentalVMOptions";
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System.arraycopy(args, 0, cmds, 1, args.length);
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cmds[args.length + 1] = "-XX:+PrintFlagsFinal";
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cmds[args.length + 2] = "-version";
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ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder(cmds);
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OutputAnalyzer output = new OutputAnalyzer(pb.start());
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output.shouldHaveExitValue(0);
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check.accept(output);
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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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String gc = "-XX:+Use" + args[0] + "GC";
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testWith(output -> output.shouldNotContain(CLSOffLSMGreaterZero), "should have CLS and LSM enabled", true, 100, "-XX:LoopStripMiningIter=100", gc);
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testWith(output -> output.shouldContain(CLSOffLSMGreaterZero), "should have CLS and LSM disabled", false, 0, "-XX:-UseCountedLoopSafepoints", "-XX:LoopStripMiningIter=100", gc);
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testWith(output -> output.shouldContain(CLSOnLSMEqualZero), "should have CLS and LSM enabled", true, 1, "-XX:LoopStripMiningIter=0", gc);
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testWith(output -> output.shouldNotContain(CLSOnLSMEqualZero), "should have CLS and LSM disabled", false, 0, "-XX:-UseCountedLoopSafepoints", "-XX:LoopStripMiningIter=0", gc);
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}
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}
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