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annotate src/share/vm/graal/graalVmIds.hpp @ 4181:319860ae697a

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Simplify FrameMap: make offsets of spill slots and outgoing parameters independent so that they can be allocated at the same time, eliminating the separate phases. This makes the separate StackBlock unnecesary. Change CiStackSlot to use byte offsets instead of spill slot index. This makes CiTarget.spillSlotSize unnecessary.
author Christian Wimmer <Christian.Wimmer@Oracle.com>
date Mon, 02 Jan 2012 14:16:08 -0800
parents 50a1d38cd7ac
children 14a00ee82980
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1 /*
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2 * Copyright (c) 2011, 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 #include "memory/allocation.hpp"
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25 #include "utilities/growableArray.hpp"
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26 #include "oops/oop.hpp"
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27 #include "runtime/handles.hpp"
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28 #include "runtime/thread.hpp"
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29 #include "classfile/javaClasses.hpp"
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30 #include "runtime/jniHandles.hpp"
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32 class VmIds : public AllStatic {
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33
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34 public:
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35 // Adds a stub address, and returns the corresponding vmId (which is of type STUB)
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36 static jlong addStub(address stub);
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37
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38 // Returns the stub address with the given vmId
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39 static address getStub(jlong id);
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41 // Returns the stub address with the given vmId taken from a java.lang.Long
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42 static address getStub(oop id);
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44 // Helper function to convert a symbol to a java.lang.String object
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45 template <typename T> static T toString(Symbol* symbol, TRAPS);
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47 // Helper function to convert a java.lang.String object to a symbol (this will return NULL if the symbol doesn't exist in the system)
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48 static Symbol* toSymbol(jstring string);
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49
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50 // Helper function to get the contents of a java.lang.Long
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51 static jlong getBoxedLong(oop obj);
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52 };
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54 inline address VmIds::getStub(oop obj) {
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55 return getStub(getBoxedLong(obj));
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56 }
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57
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58 template <> inline Handle VmIds::toString<Handle>(Symbol* symbol, TRAPS) {
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59 return java_lang_String::create_from_symbol(symbol, THREAD);
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60 }
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62 template <> inline oop VmIds::toString<oop>(Symbol* symbol, TRAPS) {
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63 return toString<Handle>(symbol, THREAD)();
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64 }
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66 template <> inline jstring VmIds::toString<jstring>(Symbol* symbol, TRAPS) {
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67 return (jstring)JNIHandles::make_local(toString<oop>(symbol, THREAD));
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68 }
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70 template <> inline jobject VmIds::toString<jobject>(Symbol* symbol, TRAPS) {
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71 return JNIHandles::make_local(toString<oop>(symbol, THREAD));
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72 }
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73
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74 inline Symbol* VmIds::toSymbol(jstring string) {
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75 return java_lang_String::as_symbol_or_null(JNIHandles::resolve(string));
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76 }
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78 inline jlong VmIds::getBoxedLong(oop obj) {
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79 assert(obj->is_oop(true), "cannot unbox null or non-oop");
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80 return obj->long_field(java_lang_boxing_object::value_offset_in_bytes(T_LONG));
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81 }
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82