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annotate src/share/vm/jvmci/jvmciCompilerToVM.hpp @ 21559:be896a1983c0

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recast all Graal native code as JVMCI code (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Thu, 28 May 2015 15:36:48 +0200
parents src/share/vm/graal/graalCompilerToVM.hpp@a38a54030ea2
children
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1 /*
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2 * Copyright (c) 2011, 2013, 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 #ifndef SHARE_VM_JVMCI_JVMCI_COMPILER_TO_VM_HPP
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25 #define SHARE_VM_JVMCI_JVMCI_COMPILER_TO_VM_HPP
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26
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27 #include "prims/jni.h"
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28 #include "runtime/javaCalls.hpp"
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29
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30 class CompilerToVM {
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31 public:
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32 /**
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33 * Tag bits used by lookupKlassInPool to distinguish the types in Java.
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34 */
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35 enum Tags {
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36 KLASS_TAG = 0x0,
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37 SYMBOL_TAG = 0x1
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38 };
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39
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40 static intptr_t tag_pointer(Klass* klass) {
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41 return ((intptr_t) klass) | KLASS_TAG;
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42 }
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43
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44 static intptr_t tag_pointer(Symbol* symbol) {
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45 return ((intptr_t) symbol) | SYMBOL_TAG;
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46 }
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47
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48 // nothing here - no need to define the jni method implementations in a header file
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49 };
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50
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51 extern JNINativeMethod CompilerToVM_methods[];
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52 int CompilerToVM_methods_count();
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53
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54 inline Method* asMethod(jlong metaspaceMethod) {
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55 return (Method*) (address) metaspaceMethod;
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56 }
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58 inline MethodData* asMethodData(jlong metaspaceMethodData) {
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59 return (MethodData*) (address) metaspaceMethodData;
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60 }
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62 inline Klass* asKlass(jlong metaspaceKlass) {
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63 return (Klass*) (address) metaspaceKlass;
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64 }
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65
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66 class JavaArgumentUnboxer : public SignatureIterator {
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67 protected:
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68 JavaCallArguments* _jca;
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69 arrayOop _args;
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70 int _index;
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71
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72 oop next_arg(BasicType expectedType) {
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73 assert(_index < _args->length(), "out of bounds");
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74 oop arg=((objArrayOop) (_args))->obj_at(_index++);
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75 assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch");
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76 return arg;
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77 }
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78
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79 public:
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80 JavaArgumentUnboxer(Symbol* signature, JavaCallArguments* jca, arrayOop args, bool is_static) : SignatureIterator(signature) {
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81 this->_return_type = T_ILLEGAL;
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82 _jca = jca;
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83 _index = 0;
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84 _args = args;
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85 if (!is_static) {
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86 _jca->push_oop(next_arg(T_OBJECT));
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87 }
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88 iterate();
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89 assert(_index == args->length(), "arg count mismatch with signature");
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90 }
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91
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92 inline void do_bool() { if (!is_return_type()) _jca->push_int(next_arg(T_BOOLEAN)->bool_field(java_lang_boxing_object::value_offset_in_bytes(T_BOOLEAN))); }
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93 inline void do_char() { if (!is_return_type()) _jca->push_int(next_arg(T_CHAR)->char_field(java_lang_boxing_object::value_offset_in_bytes(T_CHAR))); }
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94 inline void do_short() { if (!is_return_type()) _jca->push_int(next_arg(T_SHORT)->short_field(java_lang_boxing_object::value_offset_in_bytes(T_SHORT))); }
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95 inline void do_byte() { if (!is_return_type()) _jca->push_int(next_arg(T_BYTE)->byte_field(java_lang_boxing_object::value_offset_in_bytes(T_BYTE))); }
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96 inline void do_int() { if (!is_return_type()) _jca->push_int(next_arg(T_INT)->int_field(java_lang_boxing_object::value_offset_in_bytes(T_INT))); }
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97
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98 inline void do_long() { if (!is_return_type()) _jca->push_long(next_arg(T_LONG)->long_field(java_lang_boxing_object::value_offset_in_bytes(T_LONG))); }
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99 inline void do_float() { if (!is_return_type()) _jca->push_float(next_arg(T_FLOAT)->float_field(java_lang_boxing_object::value_offset_in_bytes(T_FLOAT))); }
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100 inline void do_double() { if (!is_return_type()) _jca->push_double(next_arg(T_DOUBLE)->double_field(java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE))); }
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101
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102 inline void do_object() { _jca->push_oop(next_arg(T_OBJECT)); }
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103 inline void do_object(int begin, int end) { if (!is_return_type()) _jca->push_oop(next_arg(T_OBJECT)); }
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104 inline void do_array(int begin, int end) { if (!is_return_type()) _jca->push_oop(next_arg(T_OBJECT)); }
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105 inline void do_void() { }
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106 };
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107
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108 #endif // SHARE_VM_JVMCI_JVMCI_COMPILER_TO_VM_HPP