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/*
* Copyright (c) 2021, Red Hat, Inc. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @library /test/lib /
* @requires vm.flagless
* @requires ! vm.opt.final.UnlockExperimentalVMOptions
* @requires vm.compMode != "Xint"
* @run driver compiler.blackhole.BlackholeExperimentalUnlockTest
*/
package compiler.blackhole;
import java.io.IOException;
import java.util.List;
import java.util.Arrays;
import java.util.ArrayList;
import jdk.test.lib.Platform;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
public class BlackholeExperimentalUnlockTest {
private static final int CYCLES = 100_000;
private static final int TRIES = 10;
public static void main(String[] args) throws IOException {
if (args.length == 0) {
driver();
} else {
runner();
}
}
private static final String MSG = "Blackhole compile option is experimental and must be enabled via -XX:+UnlockExperimentalVMOptions";
private static List<String> cmdline(String[] args) {
List<String> r = new ArrayList();
r.add("-Xmx128m");
r.add("-Xbatch");
r.addAll(Arrays.asList(args));
r.add("compiler.blackhole.BlackholeExperimentalUnlockTest");
r.add("run");
return r;
}
public static void shouldFail(String... args) throws IOException {
ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder(cmdline(args));
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(0);
output.shouldContain(MSG);
}
public static void shouldPass(String... args) throws IOException {
ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder(cmdline(args));
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(0);
output.shouldNotContain(MSG);
}
public static void driver() throws IOException {
// Option is disabled by default, should fail:
shouldFail(
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=option,compiler/blackhole/BlackholeTarget.bh_*,Blackhole"
);
shouldFail(
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=blackhole,compiler/blackhole/BlackholeTarget.bh_*"
);
// Option should be enabled by UnlockExperimentalVMOptions
shouldPass(
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=option,compiler/blackhole/BlackholeTarget.bh_*,Blackhole"
);
shouldPass(
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=blackhole,compiler/blackhole/BlackholeTarget.bh_*"
);
// Should be able to shun the warning
shouldPass(
"-XX:-PrintWarnings",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=option,compiler/blackhole/BlackholeTarget.bh_*,Blackhole"
);
shouldPass(
"-XX:-PrintWarnings",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=blackhole,compiler/blackhole/BlackholeTarget.bh_*"
);
}
public static void runner() {
for (int t = 0; t < TRIES; t++) {
run();
}
}
public static void run() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_int_1(c);
}
}
}
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