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annotate graal/com.oracle.graal.hotspot.test/src/com/oracle/graal/hotspot/test/InstalledCodeExecuteHelperTest.java @ 9025:ff5a32117e02

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Implement fast invocation of installed code (direct tail call to the target machine code address).
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Fri, 12 Apr 2013 01:53:52 +0200
parents 7fee8bd5d2bd
children 640996823a81
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1 /*
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2 * Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.hotspot.test;
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24
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25 import java.lang.reflect.*;
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26
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27 import com.oracle.graal.api.code.*;
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28 import com.oracle.graal.api.meta.*;
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29 import com.oracle.graal.api.runtime.*;
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30 import com.oracle.graal.compiler.test.*;
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31 import com.oracle.graal.hotspot.meta.*;
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32 import com.oracle.graal.nodes.spi.*;
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33
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34 public class InstalledCodeExecuteHelperTest extends GraalCompilerTest {
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35
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36 private static final int ITERATIONS = 100000000;
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37
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38 // TODO this is not a test, move it somewhere else
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39 // CheckStyle: stop system..print check
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40 public void test1() throws NoSuchMethodException, SecurityException, InvalidInstalledCodeException {
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41
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42 final Method benchrMethod = InstalledCodeExecuteHelperTest.class.getMethod("bench", long.class, long.class);
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43 final ResolvedJavaMethod benchJavaMethod = Graal.getRequiredCapability(GraalCodeCacheProvider.class).lookupJavaMethod(benchrMethod);
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44 HotSpotInstalledCode benchCode = (HotSpotInstalledCode) getCode(benchJavaMethod, parse(benchrMethod));
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45
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46 final Method wrapperMethod = InstalledCodeExecuteHelperTest.class.getMethod("executeWrapper", long.class, long.class, Object.class, Object.class, Object.class);
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47 final ResolvedJavaMethod wrapperJavaMethod = Graal.getRequiredCapability(GraalCodeCacheProvider.class).lookupJavaMethod(wrapperMethod);
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48 HotSpotInstalledCode wrapperCode = (HotSpotInstalledCode) getCode(wrapperJavaMethod, parse(wrapperMethod));
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49
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50 final Method fooMethod = InstalledCodeExecuteHelperTest.class.getMethod("foo", Object.class, Object.class, Object.class);
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51 final HotSpotResolvedJavaMethod fooJavaMethod = (HotSpotResolvedJavaMethod) Graal.getRequiredCapability(GraalCodeCacheProvider.class).lookupJavaMethod(fooMethod);
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52 HotSpotInstalledCode fooCode = (HotSpotInstalledCode) getCode(fooJavaMethod, parse(fooMethod));
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53
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54 System.out.println(wrapperCode.executeVarargs(fooCode.getnmethod(), fooJavaMethod.getMetaspaceMethod(), null, null, null));
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55
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56 long nmethod = fooCode.getnmethod();
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57 long metaspacemethod = fooJavaMethod.getMetaspaceMethod();
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58
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59 System.out.println("Without replaced InstalledCode.execute:" + bench(nmethod, metaspacemethod));
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60
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61 System.out.println("WITH replaced InstalledCode.execute:" + benchCode.executeVarargs(nmethod, metaspacemethod));
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62
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63 }
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65 // CheckStyle: resume system..print check
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66
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67 public static Long bench(long nmethod, long metaspacemethod) throws InvalidInstalledCodeException {
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68 long start = System.currentTimeMillis();
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69
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70 for (int i = 0; i < ITERATIONS; i++) {
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71 HotSpotInstalledCode.executeHelper(nmethod, metaspacemethod, null, null, null);
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72 }
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73
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74 long end = System.currentTimeMillis();
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75 return (end - start);
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76 }
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78 public static Object foo(@SuppressWarnings("unused") Object a1, @SuppressWarnings("unused") Object a2, @SuppressWarnings("unused") Object a3) {
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79 return 42;
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80 }
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81
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82 public static Object executeWrapper(long nmethod, long metaspaceMethod, Object arg1, Object arg2, Object arg3) throws InvalidInstalledCodeException {
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83 return HotSpotInstalledCode.executeHelper(nmethod, metaspaceMethod, arg1, arg2, arg3);
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84 }
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86 }