76 lines
2.6 KiB
Java
76 lines
2.6 KiB
Java
/*
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* Copyright (c) 2014, 2022, 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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package compiler.testlibrary;
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import java.util.Arrays;
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import jdk.test.lib.Asserts;
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import jdk.test.lib.Platform;
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import jdk.test.whitebox.WhiteBox;
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import java.util.stream.IntStream;
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public class CompilerUtils {
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private CompilerUtils() {
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// to prevent from instantiation
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}
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/**
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* Returns available compilation levels
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*
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* @return int array with compilation levels
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*/
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public static int[] getAvailableCompilationLevels() {
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if (!WhiteBox.getWhiteBox().getBooleanVMFlag("UseCompiler")) {
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return new int[0];
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}
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if (WhiteBox.getWhiteBox().getBooleanVMFlag("TieredCompilation")) {
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Long flagValue = WhiteBox.getWhiteBox()
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.getIntxVMFlag("TieredStopAtLevel");
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int maxLevel = flagValue.intValue();
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Asserts.assertEQ(new Long(maxLevel), flagValue,
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"TieredStopAtLevel has value out of int capacity");
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return IntStream.rangeClosed(1, maxLevel).toArray();
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} else {
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if (Platform.isServer() && !Platform.isEmulatedClient()) {
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return new int[]{4};
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}
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if (Platform.isClient() || Platform.isMinimal() || Platform.isEmulatedClient()) {
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return new int[]{1};
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}
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}
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return new int[0];
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}
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/**
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* Returns maximum compilation level available
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* @return an int value representing maximum compilation level available
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*/
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public static int getMaxCompilationLevel() {
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return Arrays.stream(getAvailableCompilationLevels())
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.max()
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.getAsInt();
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}
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}
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