| /* |
| * Copyright (c) 2016 SAP SE. 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 |
| * @bug 8150646 8153013 |
| * @summary Add support for blocking compiles through whitebox API |
| * @modules java.base/jdk.internal.misc |
| * @library /test/lib / |
| * @build sun.hotspot.WhiteBox |
| * @run driver ClassFileInstaller sun.hotspot.WhiteBox |
| * sun.hotspot.WhiteBox$WhiteBoxPermission |
| * @run main/othervm |
| * -Xbootclasspath/a:. |
| * -Xmixed |
| * -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI |
| * -XX:+PrintCompilation |
| * compiler.whitebox.BlockingCompilation |
| */ |
| |
| package compiler.whitebox; |
| |
| import compiler.testlibrary.CompilerUtils; |
| import sun.hotspot.WhiteBox; |
| |
| import java.lang.reflect.Method; |
| import java.util.Random; |
| |
| public class BlockingCompilation { |
| private static final WhiteBox WB = WhiteBox.getWhiteBox(); |
| private static final Random RANDOM = new Random(); |
| |
| public static int foo() { |
| return RANDOM.nextInt(); |
| } |
| |
| public static void main(String[] args) throws Exception { |
| Method m = BlockingCompilation.class.getMethod("foo"); |
| int[] levels = CompilerUtils.getAvailableCompilationLevels(); |
| int highest_level = levels[levels.length-1]; |
| |
| // If there are no compilers available these tests don't make any sense. |
| if (levels.length == 0) return; |
| |
| // Make sure no compilations can progress, blocking compiles will hang |
| WB.lockCompilation(); |
| |
| // Verify method state before test |
| if (WB.isMethodCompiled(m)) { |
| throw new Exception("Should not be compiled after deoptimization"); |
| } |
| if (WB.isMethodQueuedForCompilation(m)) { |
| throw new Exception("Should not be enqueued on any level"); |
| } |
| |
| // Try compiling on highest available comp level. |
| // If the compiles are blocking, this call will block until the test time out, |
| // Progress == success |
| // (Don't run with -Xcomp since that can cause long timeouts due to many compiles) |
| if (!WB.enqueueMethodForCompilation(m, highest_level)) { |
| throw new Exception("Failed to enqueue method on level: " + highest_level); |
| } |
| |
| if (!WB.isMethodQueuedForCompilation(m)) { |
| throw new Exception("Must be enqueued because of locked compilation"); |
| } |
| |
| // restore state |
| WB.unlockCompilation(); |
| while (!WB.isMethodCompiled(m)) { |
| Thread.sleep(100); |
| } |
| WB.deoptimizeMethod(m); |
| WB.clearMethodState(m); |
| |
| // Blocking compilations on all levels, using the default versions of |
| // WB.enqueueMethodForCompilation() and manually setting compiler directives. |
| String directive = "[{ match: \"" |
| + BlockingCompilation.class.getName().replace('.', '/') |
| + ".foo\", BackgroundCompilation: false }]"; |
| if (WB.addCompilerDirective(directive) != 1) { |
| throw new Exception("Failed to add compiler directive"); |
| } |
| |
| try { |
| for (int l : levels) { |
| // Make uncompiled |
| WB.deoptimizeMethod(m); |
| |
| // Verify that it's not compiled |
| if (WB.isMethodCompiled(m)) { |
| throw new Exception("Should not be compiled after deoptimization"); |
| } |
| if (WB.isMethodQueuedForCompilation(m)) { |
| throw new Exception("Should not be enqueued on any level"); |
| } |
| |
| // Add to queue and verify that it went well |
| if (!WB.enqueueMethodForCompilation(m, l)) { |
| throw new Exception("Could not be enqueued for compilation"); |
| } |
| |
| // Verify that it is compiled |
| if (!WB.isMethodCompiled(m)) { |
| throw new Exception("Must be compiled here"); |
| } |
| // And verify the level |
| if (WB.getMethodCompilationLevel(m) != l) { |
| String msg = m + " should be compiled at level " + l + |
| "(but is actually compiled at level " + |
| WB.getMethodCompilationLevel(m) + ")"; |
| System.out.println("==> " + msg); |
| throw new Exception(msg); |
| } |
| } |
| } finally { |
| WB.removeCompilerDirective(1); |
| } |
| |
| // Clean up |
| WB.deoptimizeMethod(m); |
| WB.clearMethodState(m); |
| |
| // Make sure no compilations can progress, blocking compiles will hang |
| WB.lockCompilation(); |
| |
| // Verify method state before test |
| if (WB.isMethodCompiled(m)) { |
| throw new Exception("Should not be compiled after deoptimization"); |
| } |
| if (WB.isMethodQueuedForCompilation(m)) { |
| throw new Exception("Should not be enqueued on any level"); |
| } |
| |
| // Try compiling on highest available comp level. |
| // If the compiles are blocking, this call will block until the test time out, |
| // Progress == success |
| // (Don't run with -Xcomp since that can cause long timeouts due to many compiles) |
| WB.enqueueMethodForCompilation(m, highest_level); |
| |
| // restore state |
| WB.unlockCompilation(); |
| } |
| } |