Mercurial > hg > truffle
annotate src/share/vm/ci/ciMethodData.hpp @ 196:d1605aabd0a1 jdk7-b30
6719955: Update copyright year
Summary: Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell
| author | xdono |
|---|---|
| date | Wed, 02 Jul 2008 12:55:16 -0700 |
| parents | 48a3fa21394b |
| children | c18cbe5936b8 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 196 | 2 * Copyright 2001-2008 Sun Microsystems, Inc. All Rights Reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 class ciBitData; | |
| 26 class ciCounterData; | |
| 27 class ciJumpData; | |
| 28 class ciReceiverTypeData; | |
| 29 class ciRetData; | |
| 30 class ciBranchData; | |
| 31 class ciArrayData; | |
| 32 class ciMultiBranchData; | |
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33 class ciArgInfoData; |
| 0 | 34 |
| 35 typedef ProfileData ciProfileData; | |
| 36 | |
| 37 class ciBitData : public BitData { | |
| 38 public: | |
| 39 ciBitData(DataLayout* layout) : BitData(layout) {}; | |
| 40 }; | |
| 41 | |
| 42 class ciCounterData : public CounterData { | |
| 43 public: | |
| 44 ciCounterData(DataLayout* layout) : CounterData(layout) {}; | |
| 45 }; | |
| 46 | |
| 47 class ciJumpData : public JumpData { | |
| 48 public: | |
| 49 ciJumpData(DataLayout* layout) : JumpData(layout) {}; | |
| 50 }; | |
| 51 | |
| 52 class ciReceiverTypeData : public ReceiverTypeData { | |
| 53 public: | |
| 54 ciReceiverTypeData(DataLayout* layout) : ReceiverTypeData(layout) {}; | |
| 55 | |
| 56 void set_receiver(uint row, ciKlass* recv) { | |
| 57 assert((uint)row < row_limit(), "oob"); | |
| 58 set_intptr_at(receiver0_offset + row * receiver_type_row_cell_count, | |
| 59 (intptr_t) recv); | |
| 60 } | |
| 61 | |
| 62 ciKlass* receiver(uint row) { | |
| 63 assert((uint)row < row_limit(), "oob"); | |
| 64 ciObject* recv = (ciObject*)intptr_at(receiver0_offset + row * receiver_type_row_cell_count); | |
| 65 assert(recv == NULL || recv->is_klass(), "wrong type"); | |
| 66 return (ciKlass*)recv; | |
| 67 } | |
| 68 | |
| 69 // Copy & translate from oop based ReceiverTypeData | |
| 70 virtual void translate_from(ProfileData* data) { | |
| 71 translate_receiver_data_from(data); | |
| 72 } | |
| 73 void translate_receiver_data_from(ProfileData* data); | |
| 74 #ifndef PRODUCT | |
| 75 void print_data_on(outputStream* st); | |
| 76 void print_receiver_data_on(outputStream* st); | |
| 77 #endif | |
| 78 }; | |
| 79 | |
| 80 class ciVirtualCallData : public VirtualCallData { | |
| 81 // Fake multiple inheritance... It's a ciReceiverTypeData also. | |
| 82 ciReceiverTypeData* rtd_super() { return (ciReceiverTypeData*) this; } | |
| 83 | |
| 84 public: | |
| 85 ciVirtualCallData(DataLayout* layout) : VirtualCallData(layout) {}; | |
| 86 | |
| 87 void set_receiver(uint row, ciKlass* recv) { | |
| 88 rtd_super()->set_receiver(row, recv); | |
| 89 } | |
| 90 | |
| 91 ciKlass* receiver(uint row) { | |
| 92 return rtd_super()->receiver(row); | |
| 93 } | |
| 94 | |
| 95 // Copy & translate from oop based VirtualCallData | |
| 96 virtual void translate_from(ProfileData* data) { | |
| 97 rtd_super()->translate_receiver_data_from(data); | |
| 98 } | |
| 99 #ifndef PRODUCT | |
| 100 void print_data_on(outputStream* st); | |
| 101 #endif | |
| 102 }; | |
| 103 | |
| 104 | |
| 105 class ciRetData : public RetData { | |
| 106 public: | |
| 107 ciRetData(DataLayout* layout) : RetData(layout) {}; | |
| 108 }; | |
| 109 | |
| 110 class ciBranchData : public BranchData { | |
| 111 public: | |
| 112 ciBranchData(DataLayout* layout) : BranchData(layout) {}; | |
| 113 }; | |
| 114 | |
| 115 class ciArrayData : public ArrayData { | |
| 116 public: | |
| 117 ciArrayData(DataLayout* layout) : ArrayData(layout) {}; | |
| 118 }; | |
| 119 | |
| 120 class ciMultiBranchData : public MultiBranchData { | |
| 121 public: | |
| 122 ciMultiBranchData(DataLayout* layout) : MultiBranchData(layout) {}; | |
| 123 }; | |
| 124 | |
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125 class ciArgInfoData : public ArgInfoData { |
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126 public: |
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127 ciArgInfoData(DataLayout* layout) : ArgInfoData(layout) {}; |
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128 }; |
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129 |
| 0 | 130 // ciMethodData |
| 131 // | |
| 132 // This class represents a methodDataOop in the HotSpot virtual | |
| 133 // machine. | |
| 134 | |
| 135 class ciMethodData : public ciObject { | |
| 136 CI_PACKAGE_ACCESS | |
| 137 | |
| 138 private: | |
| 139 // Size in bytes | |
| 140 int _data_size; | |
| 141 int _extra_data_size; | |
| 142 | |
| 143 // Data entries | |
| 144 intptr_t* _data; | |
| 145 | |
| 146 // Cached hint for data_before() | |
| 147 int _hint_di; | |
| 148 | |
| 149 // Is data attached? And is it mature? | |
| 150 enum { empty_state, immature_state, mature_state }; | |
| 151 u_char _state; | |
| 152 | |
| 153 // Set this true if empty extra_data slots are ever witnessed. | |
| 154 u_char _saw_free_extra_data; | |
| 155 | |
| 156 // Support for interprocedural escape analysis | |
| 157 intx _eflags; // flags on escape information | |
| 158 intx _arg_local; // bit set of non-escaping arguments | |
| 159 intx _arg_stack; // bit set of stack-allocatable arguments | |
| 160 intx _arg_returned; // bit set of returned arguments | |
| 161 | |
| 162 // Maturity of the oop when the snapshot is taken. | |
| 163 int _current_mileage; | |
| 164 | |
| 165 // Coherent snapshot of original header. | |
| 166 methodDataOopDesc _orig; | |
| 167 | |
| 168 ciMethodData(methodDataHandle h_md); | |
| 169 ciMethodData(); | |
| 170 | |
| 171 // Accessors | |
|
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172 int data_size() const { return _data_size; } |
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173 int extra_data_size() const { return _extra_data_size; } |
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174 intptr_t * data() const { return _data; } |
| 0 | 175 |
| 176 methodDataOop get_methodDataOop() const { | |
| 177 if (handle() == NULL) return NULL; | |
| 178 methodDataOop mdo = (methodDataOop)get_oop(); | |
| 179 assert(mdo != NULL, "illegal use of unloaded method data"); | |
| 180 return mdo; | |
| 181 } | |
| 182 | |
| 183 const char* type_string() { return "ciMethodData"; } | |
| 184 | |
| 185 void print_impl(outputStream* st); | |
| 186 | |
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187 DataLayout* data_layout_at(int data_index) const { |
| 0 | 188 assert(data_index % sizeof(intptr_t) == 0, "unaligned"); |
| 189 return (DataLayout*) (((address)_data) + data_index); | |
| 190 } | |
| 191 | |
| 192 bool out_of_bounds(int data_index) { | |
| 193 return data_index >= data_size(); | |
| 194 } | |
| 195 | |
| 196 // hint accessors | |
| 197 int hint_di() const { return _hint_di; } | |
| 198 void set_hint_di(int di) { | |
| 199 assert(!out_of_bounds(di), "hint_di out of bounds"); | |
| 200 _hint_di = di; | |
| 201 } | |
| 202 ciProfileData* data_before(int bci) { | |
| 203 // avoid SEGV on this edge case | |
| 204 if (data_size() == 0) | |
| 205 return NULL; | |
| 206 int hint = hint_di(); | |
| 207 if (data_layout_at(hint)->bci() <= bci) | |
| 208 return data_at(hint); | |
| 209 return first_data(); | |
| 210 } | |
| 211 | |
| 212 | |
| 213 // What is the index of the first data entry? | |
| 214 int first_di() { return 0; } | |
| 215 | |
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216 ciArgInfoData *arg_info() const; |
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217 |
| 0 | 218 public: |
| 219 bool is_method_data() { return true; } | |
| 220 bool is_empty() { return _state == empty_state; } | |
| 221 bool is_mature() { return _state == mature_state; } | |
| 222 | |
| 223 int creation_mileage() { return _orig.creation_mileage(); } | |
| 224 int current_mileage() { return _current_mileage; } | |
| 225 | |
| 226 void load_data(); | |
| 227 | |
| 228 // Convert a dp (data pointer) to a di (data index). | |
| 229 int dp_to_di(address dp) { | |
| 230 return dp - ((address)_data); | |
| 231 } | |
| 232 | |
| 233 // Get the data at an arbitrary (sort of) data index. | |
| 234 ciProfileData* data_at(int data_index); | |
| 235 | |
| 236 // Walk through the data in order. | |
| 237 ciProfileData* first_data() { return data_at(first_di()); } | |
| 238 ciProfileData* next_data(ciProfileData* current); | |
| 239 bool is_valid(ciProfileData* current) { return current != NULL; } | |
| 240 | |
| 241 // Get the data at an arbitrary bci, or NULL if there is none. | |
| 242 ciProfileData* bci_to_data(int bci); | |
| 243 ciProfileData* bci_to_extra_data(int bci, bool create_if_missing); | |
| 244 | |
| 245 uint overflow_trap_count() const { | |
| 246 return _orig.overflow_trap_count(); | |
| 247 } | |
| 248 uint overflow_recompile_count() const { | |
| 249 return _orig.overflow_recompile_count(); | |
| 250 } | |
| 251 uint decompile_count() const { | |
| 252 return _orig.decompile_count(); | |
| 253 } | |
| 254 uint trap_count(int reason) const { | |
| 255 return _orig.trap_count(reason); | |
| 256 } | |
| 257 uint trap_reason_limit() const { return _orig.trap_reason_limit(); } | |
| 258 uint trap_count_limit() const { return _orig.trap_count_limit(); } | |
| 259 | |
| 260 // Helpful query functions that decode trap_state. | |
| 261 int has_trap_at(ciProfileData* data, int reason); | |
| 262 int has_trap_at(int bci, int reason) { | |
| 263 return has_trap_at(bci_to_data(bci), reason); | |
| 264 } | |
| 265 int trap_recompiled_at(ciProfileData* data); | |
| 266 int trap_recompiled_at(int bci) { | |
| 267 return trap_recompiled_at(bci_to_data(bci)); | |
| 268 } | |
| 269 | |
| 270 void clear_escape_info(); | |
| 271 bool has_escape_info(); | |
| 272 void update_escape_info(); | |
| 273 | |
| 274 void set_eflag(methodDataOopDesc::EscapeFlag f); | |
| 275 void clear_eflag(methodDataOopDesc::EscapeFlag f); | |
| 276 bool eflag_set(methodDataOopDesc::EscapeFlag f) const; | |
| 277 | |
| 278 void set_arg_local(int i); | |
| 279 void set_arg_stack(int i); | |
| 280 void set_arg_returned(int i); | |
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281 void set_arg_modified(int arg, uint val); |
| 0 | 282 |
| 283 bool is_arg_local(int i) const; | |
| 284 bool is_arg_stack(int i) const; | |
| 285 bool is_arg_returned(int i) const; | |
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286 uint arg_modified(int arg) const; |
| 0 | 287 |
| 288 // Code generation helper | |
| 289 ByteSize offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data); | |
| 290 int byte_offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data) { return in_bytes(offset_of_slot(data, slot_offset_in_data)); } | |
| 291 | |
| 292 #ifndef PRODUCT | |
| 293 // printing support for method data | |
| 294 void print(); | |
| 295 void print_data_on(outputStream* st); | |
| 296 #endif | |
| 297 }; |