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annotate src/share/vm/graal/graalGlobals.hpp @ 9126:bc26f978b0ce

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HotSpotResolvedObjectType: implement hasFinalizeSubclass() correctly don't use the (wrong) cached value, but ask the runtime on each request. Fixes regression on xml.* benchmarks @ specjvm2008. The problem was: After the constructor of Object was deoptimized due to an assumption violation, it was recompiled again after some time. However, on recompilation, the value of hasFinalizeSubclass for the class was not updated and it was compiled again with a, now wrong, assumption, which then triggers deoptimization again. This was repeated until it hit the recompilation limit (defined by PerMethodRecompilationCutoff), and therefore only executed by the interpreter from now on, causing the performance regression.
author Bernhard Urban <bernhard.urban@jku.at>
date Mon, 15 Apr 2013 19:54:58 +0200
parents 8d10fc6b4f6c
children 5d460d3465fd
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1 /*
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2 * Copyright (c) 2000, 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 */
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24
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25 #ifndef SHARE_VM_GRAAL_GRAALGLOBALS_HPP
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26 #define SHARE_VM_GRAAL_GRAALGLOBALS_HPP
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27
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28 #include "runtime/globals.hpp"
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29 #ifdef TARGET_ARCH_x86
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30 # include "graalGlobals_x86.hpp"
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31 #endif
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32 #ifdef TARGET_ARCH_sparc
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33 # include "graalGlobals_sparc.hpp"
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34 #endif
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35 #ifdef TARGET_ARCH_arm
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36 # include "graalGlobals_arm.hpp"
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37 #endif
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38 #ifdef TARGET_ARCH_ppc
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39 # include "graalGlobals_ppc.hpp"
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40 #endif
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41
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42 //
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43 // Defines all global flags used by the Graal compiler. Only flags that need
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44 // to be accessible to the Graal C++ code should be defined here. All other
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45 // Graal flags should be defined in GraalOptions.java.
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46 //
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47 #define GRAAL_FLAGS(develop, develop_pd, product, product_pd, notproduct) \
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48 \
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49 product(bool, DebugGraal, true, \
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50 "Enable JVMTI for the compiler thread") \
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51 \
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52 product(bool, BootstrapGraal, GRAALVM_ONLY(true) NOT_GRAALVM(false), \
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53 "Bootstrap Graal before running Java main method") \
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54 \
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55 product(intx, TraceGraal, 0, \
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56 "Trace level for Graal") \
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57 \
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58 develop(bool, GraalUseFastLocking, true, \
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59 "Use fast inlined locking code") \
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60 \
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61 develop(bool, GraalUseFastNewTypeArray, true, \
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62 "Use fast inlined type array allocation") \
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63 \
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64 develop(bool, GraalUseFastNewObjectArray, true, \
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65 "Use fast inlined object array allocation") \
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66 \
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67 develop(intx, GraalNMethodSizeLimit, (64*K)*wordSize, \
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68 "Maximum size of a compiled method.") \
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69 \
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70 notproduct(bool, GraalPrintSimpleStubs, false, \
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71 "Print simple Graal stubs") \
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72 \
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73
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74
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75 // Read default values for Graal globals
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76
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77 GRAAL_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_NOTPRODUCT_FLAG)
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78
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79 #endif // SHARE_VM_GRAAL_GRAALGLOBALS_HPP