Mercurial > hg > truffle
annotate src/share/vm/adlc/forms.cpp @ 6848:8e47bac5643a
7054512: Compress class pointers after perm gen removal
Summary: support of compress class pointers in the compilers.
Reviewed-by: kvn, twisti
| author | roland |
|---|---|
| date | Tue, 09 Oct 2012 10:11:38 +0200 |
| parents | 8c92982cbbc4 |
| children | f6badecb7ea7 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. 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 * | |
|
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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. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 // FORMS.CPP - Definitions for ADL Parser Generic & Utility Forms Classes | |
| 26 #include "adlc.hpp" | |
| 27 | |
| 28 //------------------------------Static Initializers---------------------------- | |
| 29 // allocate arena used by forms | |
| 30 Arena *Form::arena = Form::generate_arena(); // = Form::generate_arena(); | |
| 31 Arena *Form::generate_arena() { | |
| 32 return (new Arena); | |
| 33 } | |
| 34 | |
| 35 //------------------------------NameList--------------------------------------- | |
| 36 // reserved user-defined string | |
| 37 const char *NameList::_signal = "$$SIGNAL$$"; | |
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38 const char *NameList::_signal2 = "$$SIGNAL2$$"; |
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39 const char *NameList::_signal3 = "$$SIGNAL3$$"; |
| 0 | 40 |
| 41 // Constructor and Destructor | |
| 42 NameList::NameList() : _cur(0), _max(4), _iter(0), _justReset(true) { | |
| 43 _names = (const char**)malloc(_max*sizeof(char*)); | |
| 44 } | |
| 45 NameList::~NameList() { | |
| 46 // The following free is a double-free, and crashes the program: | |
| 47 //free(_names); // not owner of strings | |
| 48 } | |
| 49 | |
| 50 void NameList::addName(const char *name) { | |
| 51 if (_cur == _max) _names =(const char**)realloc(_names,(_max *=2)*sizeof(char*)); | |
| 52 _names[_cur++] = name; | |
| 53 } | |
| 54 | |
| 55 void NameList::add_signal() { | |
| 56 addName( _signal ); | |
| 57 } | |
| 58 void NameList::clear() { | |
| 59 _cur = 0; | |
| 60 _iter = 0; | |
| 61 _justReset = true; | |
| 62 // _max = 4; Already allocated | |
| 63 } | |
| 64 | |
| 65 int NameList::count() const { return _cur; } | |
| 66 | |
| 67 void NameList::reset() { _iter = 0; _justReset = true;} | |
| 68 const char *NameList::iter() { | |
| 69 if (_justReset) {_justReset=false; return (_iter < _cur ? _names[_iter] : NULL);} | |
| 70 else return (_iter <_cur-1 ? _names[++_iter] : NULL); | |
| 71 } | |
| 72 const char *NameList::current() { return (_iter < _cur ? _names[_iter] : NULL); } | |
| 624 | 73 const char *NameList::peek(int skip) { return (_iter + skip < _cur ? _names[_iter + skip] : NULL); } |
| 0 | 74 |
| 75 // Return 'true' if current entry is signal | |
| 76 bool NameList::current_is_signal() { | |
| 77 const char *entry = current(); | |
| 78 return is_signal(entry); | |
| 79 } | |
| 80 | |
| 81 // Return true if entry is a signal | |
| 82 bool NameList::is_signal(const char *entry) { | |
| 83 return ( (strcmp(entry,NameList::_signal) == 0) ? true : false); | |
| 84 } | |
| 85 | |
| 86 // Search for a name in the list | |
| 87 bool NameList::search(const char *name) { | |
| 88 const char *entry; | |
| 89 for(reset(); (entry = iter()) != NULL; ) { | |
| 90 if(!strcmp(entry,name)) return true; | |
| 91 } | |
| 92 return false; | |
| 93 } | |
| 94 | |
| 95 // Return index of name in list | |
| 96 int NameList::index(const char *name) { | |
| 97 int cnt = 0; | |
| 98 const char *entry; | |
| 99 for(reset(); (entry = iter()) != NULL; ) { | |
| 100 if(!strcmp(entry,name)) return cnt; | |
| 101 cnt++; | |
| 102 } | |
| 103 return Not_in_list; | |
| 104 } | |
| 105 | |
| 106 // Return name at index in list | |
| 107 const char *NameList::name(intptr_t index) { | |
| 108 return ( index < _cur ? _names[index] : NULL); | |
| 109 } | |
| 110 | |
| 111 void NameList::dump() { output(stderr); } | |
| 112 | |
| 113 void NameList::output(FILE *fp) { | |
| 114 fprintf(fp, "\n"); | |
| 115 | |
| 116 // Run iteration over all entries, independent of position of iterator. | |
| 117 const char *name = NULL; | |
| 118 int iter = 0; | |
| 119 bool justReset = true; | |
| 120 | |
| 121 while( ( name = (justReset ? | |
| 122 (justReset=false, (iter < _cur ? _names[iter] : NULL)) : | |
| 123 (iter < _cur-1 ? _names[++iter] : NULL)) ) | |
| 124 != NULL ) { | |
| 125 fprintf( fp, " %s,\n", name); | |
| 126 } | |
| 127 fprintf(fp, "\n"); | |
| 128 } | |
| 129 | |
| 130 //------------------------------NameAndList------------------------------------ | |
| 131 // Storage for a name and an associated list of names | |
| 132 NameAndList::NameAndList(char *name) : _name(name) { | |
| 133 } | |
| 134 NameAndList::~NameAndList() { | |
| 135 } | |
| 136 | |
| 137 // Add to entries in list | |
| 138 void NameAndList::add_entry(const char *entry) { | |
| 139 _list.addName(entry); | |
| 140 } | |
| 141 | |
| 142 // Access the name and its associated list. | |
| 143 const char *NameAndList::name() const { return _name; } | |
| 144 void NameAndList::reset() { _list.reset(); } | |
| 145 const char *NameAndList::iter() { return _list.iter(); } | |
| 146 | |
| 147 // Return the "index" entry in the list, zero-based | |
| 148 const char *NameAndList::operator[](int index) { | |
| 149 assert( index >= 0, "Internal Error(): index less than 0."); | |
| 150 | |
| 151 _list.reset(); | |
| 152 const char *entry = _list.iter(); | |
| 153 // Iterate further if it isn't at index 0. | |
| 154 for ( int position = 0; position != index; ++position ) { | |
| 155 entry = _list.iter(); | |
| 156 } | |
| 157 | |
| 158 return entry; | |
| 159 } | |
| 160 | |
| 161 | |
| 162 void NameAndList::dump() { output(stderr); } | |
| 163 void NameAndList::output(FILE *fp) { | |
| 164 fprintf(fp, "\n"); | |
| 165 | |
| 166 // Output the Name | |
| 167 fprintf(fp, "Name == %s", (_name ? _name : "") ); | |
| 168 | |
| 169 // Output the associated list of names | |
| 170 const char *name; | |
| 171 fprintf(fp, " ("); | |
| 172 for (reset(); (name = iter()) != NULL;) { | |
| 173 fprintf(fp, " %s,\n", name); | |
| 174 } | |
| 175 fprintf(fp, ")"); | |
| 176 fprintf(fp, "\n"); | |
| 177 } | |
| 178 | |
| 179 //------------------------------Form------------------------------------------- | |
| 180 OpClassForm *Form::is_opclass() const { | |
| 181 return NULL; | |
| 182 } | |
| 183 | |
| 184 OperandForm *Form::is_operand() const { | |
| 185 return NULL; | |
| 186 } | |
| 187 | |
| 188 InstructForm *Form::is_instruction() const { | |
| 189 return NULL; | |
| 190 } | |
| 191 | |
| 192 MachNodeForm *Form::is_machnode() const { | |
| 193 return NULL; | |
| 194 } | |
| 195 | |
| 196 AttributeForm *Form::is_attribute() const { | |
| 197 return NULL; | |
| 198 } | |
| 199 | |
| 200 Effect *Form::is_effect() const { | |
| 201 return NULL; | |
| 202 } | |
| 203 | |
| 204 ResourceForm *Form::is_resource() const { | |
| 205 return NULL; | |
| 206 } | |
| 207 | |
| 208 PipeClassForm *Form::is_pipeclass() const { | |
| 209 return NULL; | |
| 210 } | |
| 211 | |
| 212 Form::DataType Form::ideal_to_const_type(const char *name) const { | |
| 213 if( name == NULL ) { return Form::none; } | |
| 214 | |
| 215 if (strcmp(name,"ConI")==0) return Form::idealI; | |
| 216 if (strcmp(name,"ConP")==0) return Form::idealP; | |
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217 if (strcmp(name,"ConN")==0) return Form::idealN; |
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218 if (strcmp(name,"ConNKlass")==0) return Form::idealNKlass; |
| 0 | 219 if (strcmp(name,"ConL")==0) return Form::idealL; |
| 220 if (strcmp(name,"ConF")==0) return Form::idealF; | |
| 221 if (strcmp(name,"ConD")==0) return Form::idealD; | |
| 222 if (strcmp(name,"Bool")==0) return Form::idealI; | |
| 223 | |
| 224 return Form::none; | |
| 225 } | |
| 226 | |
| 227 Form::DataType Form::ideal_to_sReg_type(const char *name) const { | |
| 228 if( name == NULL ) { return Form::none; } | |
| 229 | |
| 230 if (strcmp(name,"sRegI")==0) return Form::idealI; | |
| 231 if (strcmp(name,"sRegP")==0) return Form::idealP; | |
| 232 if (strcmp(name,"sRegF")==0) return Form::idealF; | |
| 233 if (strcmp(name,"sRegD")==0) return Form::idealD; | |
| 234 if (strcmp(name,"sRegL")==0) return Form::idealL; | |
| 235 return Form::none; | |
| 236 } | |
| 237 | |
| 238 Form::DataType Form::ideal_to_Reg_type(const char *name) const { | |
| 239 if( name == NULL ) { return Form::none; } | |
| 240 | |
| 241 if (strcmp(name,"RegI")==0) return Form::idealI; | |
| 242 if (strcmp(name,"RegP")==0) return Form::idealP; | |
| 243 if (strcmp(name,"RegF")==0) return Form::idealF; | |
| 244 if (strcmp(name,"RegD")==0) return Form::idealD; | |
| 245 if (strcmp(name,"RegL")==0) return Form::idealL; | |
| 246 | |
| 247 return Form::none; | |
| 248 } | |
| 249 | |
| 250 // True if 'opType', an ideal name, loads or stores. | |
| 251 Form::DataType Form::is_load_from_memory(const char *opType) const { | |
| 252 if( strcmp(opType,"LoadB")==0 ) return Form::idealB; | |
| 624 | 253 if( strcmp(opType,"LoadUB")==0 ) return Form::idealB; |
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254 if( strcmp(opType,"LoadUS")==0 ) return Form::idealC; |
| 0 | 255 if( strcmp(opType,"LoadD")==0 ) return Form::idealD; |
| 256 if( strcmp(opType,"LoadD_unaligned")==0 ) return Form::idealD; | |
| 257 if( strcmp(opType,"LoadF")==0 ) return Form::idealF; | |
| 258 if( strcmp(opType,"LoadI")==0 ) return Form::idealI; | |
| 624 | 259 if( strcmp(opType,"LoadUI2L")==0 ) return Form::idealI; |
| 0 | 260 if( strcmp(opType,"LoadKlass")==0 ) return Form::idealP; |
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261 if( strcmp(opType,"LoadNKlass")==0 ) return Form::idealNKlass; |
| 0 | 262 if( strcmp(opType,"LoadL")==0 ) return Form::idealL; |
| 263 if( strcmp(opType,"LoadL_unaligned")==0 ) return Form::idealL; | |
| 264 if( strcmp(opType,"LoadPLocked")==0 ) return Form::idealP; | |
| 265 if( strcmp(opType,"LoadP")==0 ) return Form::idealP; | |
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266 if( strcmp(opType,"LoadN")==0 ) return Form::idealN; |
| 0 | 267 if( strcmp(opType,"LoadRange")==0 ) return Form::idealI; |
| 268 if( strcmp(opType,"LoadS")==0 ) return Form::idealS; | |
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269 if( strcmp(opType,"LoadVector")==0 ) return Form::idealV; |
| 0 | 270 assert( strcmp(opType,"Load") != 0, "Must type Loads" ); |
| 271 return Form::none; | |
| 272 } | |
| 273 | |
| 274 Form::DataType Form::is_store_to_memory(const char *opType) const { | |
| 275 if( strcmp(opType,"StoreB")==0) return Form::idealB; | |
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276 if( strcmp(opType,"StoreCM")==0) return Form::idealB; |
| 0 | 277 if( strcmp(opType,"StoreC")==0) return Form::idealC; |
| 278 if( strcmp(opType,"StoreD")==0) return Form::idealD; | |
| 279 if( strcmp(opType,"StoreF")==0) return Form::idealF; | |
| 280 if( strcmp(opType,"StoreI")==0) return Form::idealI; | |
| 281 if( strcmp(opType,"StoreL")==0) return Form::idealL; | |
| 282 if( strcmp(opType,"StoreP")==0) return Form::idealP; | |
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283 if( strcmp(opType,"StoreN")==0) return Form::idealN; |
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284 if( strcmp(opType,"StoreNKlass")==0) return Form::idealNKlass; |
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285 if( strcmp(opType,"StoreVector")==0 ) return Form::idealV; |
| 0 | 286 assert( strcmp(opType,"Store") != 0, "Must type Stores" ); |
| 287 return Form::none; | |
| 288 } | |
| 289 | |
| 290 Form::InterfaceType Form::interface_type(FormDict &globals) const { | |
| 291 return Form::no_interface; | |
| 292 } | |
| 293 | |
| 294 //------------------------------FormList--------------------------------------- | |
| 295 // Destructor | |
| 296 FormList::~FormList() { | |
| 297 // // This list may not own its elements | |
| 298 // Form *cur = _root; | |
| 299 // Form *next = NULL; | |
| 300 // for( ; (cur = next) != NULL; ) { | |
| 301 // next = (Form *)cur->_next; | |
| 302 // delete cur; | |
| 303 // } | |
| 304 }; | |
| 305 | |
| 306 //------------------------------FormDict--------------------------------------- | |
| 307 // Constructor | |
| 308 FormDict::FormDict( CmpKey cmp, Hash hash, Arena *arena ) | |
| 309 : _form(cmp, hash, arena) { | |
| 310 } | |
| 311 FormDict::~FormDict() { | |
| 312 } | |
| 313 | |
| 314 // Return # of name-Form pairs in dict | |
| 315 int FormDict::Size(void) const { | |
| 316 return _form.Size(); | |
| 317 } | |
| 318 | |
| 319 // Insert inserts the given key-value pair into the dictionary. The prior | |
| 320 // value of the key is returned; NULL if the key was not previously defined. | |
| 321 const Form *FormDict::Insert(const char *name, Form *form) { | |
| 322 return (Form*)_form.Insert((void*)name, (void*)form); | |
| 323 } | |
| 324 | |
| 325 // Finds the value of a given key; or NULL if not found. | |
| 326 // The dictionary is NOT changed. | |
| 327 const Form *FormDict::operator [](const char *name) const { | |
| 328 return (Form*)_form[name]; | |
| 329 } | |
| 330 | |
| 331 //------------------------------FormDict::private------------------------------ | |
| 332 // Disable public use of constructor, copy-ctor, operator =, operator == | |
| 333 FormDict::FormDict( ) : _form(cmpkey,hashkey) { | |
| 334 assert( false, "NotImplemented"); | |
| 335 } | |
| 336 FormDict::FormDict( const FormDict & fd) : _form(fd._form) { | |
| 337 } | |
| 338 FormDict &FormDict::operator =( const FormDict &rhs) { | |
| 339 assert( false, "NotImplemented"); | |
| 340 _form = rhs._form; | |
| 341 return *this; | |
| 342 } | |
| 343 // == compares two dictionaries; they must have the same keys (their keys | |
| 344 // must match using CmpKey) and they must have the same values (pointer | |
| 345 // comparison). If so 1 is returned, if not 0 is returned. | |
| 346 bool FormDict::operator ==(const FormDict &d) const { | |
| 347 assert( false, "NotImplemented"); | |
| 348 return false; | |
| 349 } | |
| 350 | |
| 351 // Print out the dictionary contents as key-value pairs | |
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352 static void dumpkey (const void* key) { fprintf(stdout, "%s", (char*) key); } |
| 0 | 353 static void dumpform(const void* form) { fflush(stdout); ((Form*)form)->dump(); } |
| 354 | |
| 355 void FormDict::dump() { | |
| 356 _form.print(dumpkey, dumpform); | |
| 357 } | |
| 358 | |
| 359 //------------------------------SourceForm------------------------------------- | |
| 360 SourceForm::SourceForm(char* code) : _code(code) { }; // Constructor | |
| 361 SourceForm::~SourceForm() { | |
| 362 } | |
| 363 | |
| 364 void SourceForm::dump() { // Debug printer | |
| 365 output(stderr); | |
| 366 } | |
| 367 | |
| 368 void SourceForm::output(FILE *fp) { | |
| 369 fprintf(fp,"\n//%s\n%s\n",classname(),(_code?_code:"")); | |
| 370 } |