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/*
* Copyright (c) 2015, 2016, Oracle and/or its affiliates. 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.
*/
package compiler.compilercontrol.parser;
import compiler.compilercontrol.share.JSONFile;
import compiler.compilercontrol.share.method.MethodDescriptor;
import compiler.compilercontrol.share.scenario.DirectiveWriter;
import compiler.compilercontrol.share.scenario.Scenario;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.Utils;
import java.util.EnumSet;
import java.util.List;
import java.util.Random;
import java.util.stream.Collectors;
/**
* Creates a huge directive file
*/
public final class HugeDirectiveUtil {
private static final Random RANDOM = Utils.getRandomInstance();
protected static final String EXPECTED_ERROR_STRING = "Parsing of compiler "
+ "directives failed";
private HugeDirectiveUtil() { }
/**
* Creates huge file with specified amount of directives
*
* @param descriptors a list of descriptors to be randomly used
* in match and inline blocks
* @param fileName a directives file name to be created
* @param amount an amount of match objects
*/
public static void createHugeFile(List<MethodDescriptor> descriptors,
String fileName, int amount) {
try (DirectiveWriter file = new DirectiveWriter(fileName)) {
file.write(JSONFile.Element.ARRAY);
for (int i = 0; i < amount; i++) {
createMatchObject(descriptors, file, 1);
}
file.end();
}
}
/**
* Creates match object in the given file with specified size
*
* @param descriptors a list of method descriptors to be used
* @param file a directive file to write at
* @param objectSize a size of the match object
*/
public static void createMatchObject(List<MethodDescriptor> descriptors,
DirectiveWriter file, int objectSize) {
// get random amount of methods for the match
List<String> methods = getRandomDescriptors(descriptors);
file.match(methods.toArray(new String[methods.size()]));
for (int i = 0; i < objectSize; i++) {
// emit compiler block
file.emitCompiler(Utils.getRandomElement(
Scenario.Compiler.values()));
// add option inside the compiler block
file.option(Utils.getRandomElement(DirectiveWriter.Option.values()),
RANDOM.nextBoolean());
file.end(); // ends compiler block
// add standalone option, enable can't be used standalone
EnumSet<DirectiveWriter.Option> options = EnumSet.complementOf(
EnumSet.of(DirectiveWriter.Option.ENABLE));
file.option(Utils.getRandomElement(options), RANDOM.nextBoolean());
}
// add inline block with random inlinees
methods = getRandomDescriptors(descriptors).stream()
.map(s -> (RANDOM.nextBoolean() ? "+" : "-") + s)
.collect(Collectors.toList());
file.inline(methods);
// end match block
file.end();
}
private static List<String> getRandomDescriptors(
List<MethodDescriptor> descriptors) {
int amount = 1 + RANDOM.nextInt(descriptors.size() - 1);
int skipAmount = RANDOM.nextInt(descriptors.size() - amount);
return descriptors.stream()
.skip(skipAmount)
.limit(amount)
.map(MethodDescriptor::getString)
.collect(Collectors.toList());
}
protected static OutputAnalyzer execute(String fileName) {
OutputAnalyzer output;
try {
output = ProcessTools.executeTestJvm(
"-XX:+UnlockDiagnosticVMOptions",
"-XX:CompilerDirectivesLimit=1000",
"-XX:CompilerDirectivesFile=" + fileName,
"-version");
} catch (Throwable thr) {
throw new Error("Execution failed with: " + thr, thr);
}
return output;
}
}
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