Mercurial > hg > graal-compiler
annotate src/share/vm/adlc/formssel.cpp @ 14909:4ca6dc0799b6
Backout jdk9 merge
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Tue, 01 Apr 2014 13:57:07 +0200 |
| parents | abec000618bf |
| children | 89152779163c |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 14909 | 2 * Copyright (c) 1998, 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 Forms Classes | |
| 26 #include "adlc.hpp" | |
| 27 | |
| 28 //==============================Instructions=================================== | |
| 29 //------------------------------InstructForm----------------------------------- | |
| 30 InstructForm::InstructForm(const char *id, bool ideal_only) | |
| 31 : _ident(id), _ideal_only(ideal_only), | |
| 32 _localNames(cmpstr, hashstr, Form::arena), | |
| 2008 | 33 _effects(cmpstr, hashstr, Form::arena), |
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34 _is_mach_constant(false), |
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35 _has_call(false) |
| 2008 | 36 { |
| 0 | 37 _ftype = Form::INS; |
| 38 | |
| 14909 | 39 _matrule = NULL; |
| 40 _insencode = NULL; | |
| 41 _constant = NULL; | |
| 42 _opcode = NULL; | |
| 43 _size = NULL; | |
| 44 _attribs = NULL; | |
| 45 _predicate = NULL; | |
| 46 _exprule = NULL; | |
| 47 _rewrule = NULL; | |
| 48 _format = NULL; | |
| 49 _peephole = NULL; | |
| 50 _ins_pipe = NULL; | |
| 51 _uniq_idx = NULL; | |
| 52 _num_uniq = 0; | |
| 53 _cisc_spill_operand = Not_cisc_spillable;// Which operand may cisc-spill | |
| 0 | 54 _cisc_spill_alternate = NULL; // possible cisc replacement |
| 14909 | 55 _cisc_reg_mask_name = NULL; |
| 56 _is_cisc_alternate = false; | |
| 57 _is_short_branch = false; | |
| 58 _short_branch_form = NULL; | |
| 59 _alignment = 1; | |
| 0 | 60 } |
| 61 | |
| 62 InstructForm::InstructForm(const char *id, InstructForm *instr, MatchRule *rule) | |
| 63 : _ident(id), _ideal_only(false), | |
| 64 _localNames(instr->_localNames), | |
| 2008 | 65 _effects(instr->_effects), |
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66 _is_mach_constant(false), |
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67 _has_call(false) |
| 2008 | 68 { |
| 0 | 69 _ftype = Form::INS; |
| 70 | |
| 14909 | 71 _matrule = rule; |
| 72 _insencode = instr->_insencode; | |
| 73 _constant = instr->_constant; | |
| 74 _opcode = instr->_opcode; | |
| 75 _size = instr->_size; | |
| 76 _attribs = instr->_attribs; | |
| 77 _predicate = instr->_predicate; | |
| 78 _exprule = instr->_exprule; | |
| 79 _rewrule = instr->_rewrule; | |
| 80 _format = instr->_format; | |
| 81 _peephole = instr->_peephole; | |
| 82 _ins_pipe = instr->_ins_pipe; | |
| 83 _uniq_idx = instr->_uniq_idx; | |
| 84 _num_uniq = instr->_num_uniq; | |
| 85 _cisc_spill_operand = Not_cisc_spillable;// Which operand may cisc-spill | |
| 86 _cisc_spill_alternate = NULL; // possible cisc replacement | |
| 87 _cisc_reg_mask_name = NULL; | |
| 88 _is_cisc_alternate = false; | |
| 89 _is_short_branch = false; | |
| 90 _short_branch_form = NULL; | |
| 91 _alignment = 1; | |
| 0 | 92 // Copy parameters |
| 93 const char *name; | |
| 94 instr->_parameters.reset(); | |
| 95 for (; (name = instr->_parameters.iter()) != NULL;) | |
| 96 _parameters.addName(name); | |
| 97 } | |
| 98 | |
| 99 InstructForm::~InstructForm() { | |
| 100 } | |
| 101 | |
| 102 InstructForm *InstructForm::is_instruction() const { | |
| 103 return (InstructForm*)this; | |
| 104 } | |
| 105 | |
| 106 bool InstructForm::ideal_only() const { | |
| 107 return _ideal_only; | |
| 108 } | |
| 109 | |
| 110 bool InstructForm::sets_result() const { | |
| 111 return (_matrule != NULL && _matrule->sets_result()); | |
| 112 } | |
| 113 | |
| 114 bool InstructForm::needs_projections() { | |
| 115 _components.reset(); | |
| 116 for( Component *comp; (comp = _components.iter()) != NULL; ) { | |
| 117 if (comp->isa(Component::KILL)) { | |
| 118 return true; | |
| 119 } | |
| 120 } | |
| 121 return false; | |
| 122 } | |
| 123 | |
| 124 | |
| 125 bool InstructForm::has_temps() { | |
| 126 if (_matrule) { | |
| 127 // Examine each component to see if it is a TEMP | |
| 128 _components.reset(); | |
| 129 // Skip the first component, if already handled as (SET dst (...)) | |
| 130 Component *comp = NULL; | |
| 131 if (sets_result()) comp = _components.iter(); | |
| 132 while ((comp = _components.iter()) != NULL) { | |
| 133 if (comp->isa(Component::TEMP)) { | |
| 134 return true; | |
| 135 } | |
| 136 } | |
| 137 } | |
| 138 | |
| 139 return false; | |
| 140 } | |
| 141 | |
| 142 uint InstructForm::num_defs_or_kills() { | |
| 143 uint defs_or_kills = 0; | |
| 144 | |
| 145 _components.reset(); | |
| 146 for( Component *comp; (comp = _components.iter()) != NULL; ) { | |
| 147 if( comp->isa(Component::DEF) || comp->isa(Component::KILL) ) { | |
| 148 ++defs_or_kills; | |
| 149 } | |
| 150 } | |
| 151 | |
| 152 return defs_or_kills; | |
| 153 } | |
| 154 | |
| 155 // This instruction has an expand rule? | |
| 156 bool InstructForm::expands() const { | |
| 157 return ( _exprule != NULL ); | |
| 158 } | |
| 159 | |
| 160 // This instruction has a peephole rule? | |
| 161 Peephole *InstructForm::peepholes() const { | |
| 162 return _peephole; | |
| 163 } | |
| 164 | |
| 165 // This instruction has a peephole rule? | |
| 166 void InstructForm::append_peephole(Peephole *peephole) { | |
| 167 if( _peephole == NULL ) { | |
| 168 _peephole = peephole; | |
| 169 } else { | |
| 170 _peephole->append_peephole(peephole); | |
| 171 } | |
| 172 } | |
| 173 | |
| 174 | |
| 175 // ideal opcode enumeration | |
| 176 const char *InstructForm::ideal_Opcode( FormDict &globalNames ) const { | |
| 177 if( !_matrule ) return "Node"; // Something weird | |
| 178 // Chain rules do not really have ideal Opcodes; use their source | |
| 179 // operand ideal Opcode instead. | |
| 180 if( is_simple_chain_rule(globalNames) ) { | |
| 181 const char *src = _matrule->_rChild->_opType; | |
| 182 OperandForm *src_op = globalNames[src]->is_operand(); | |
| 183 assert( src_op, "Not operand class of chain rule" ); | |
| 184 if( !src_op->_matrule ) return "Node"; | |
| 185 return src_op->_matrule->_opType; | |
| 186 } | |
| 187 // Operand chain rules do not really have ideal Opcodes | |
| 188 if( _matrule->is_chain_rule(globalNames) ) | |
| 189 return "Node"; | |
| 190 return strcmp(_matrule->_opType,"Set") | |
| 191 ? _matrule->_opType | |
| 192 : _matrule->_rChild->_opType; | |
| 193 } | |
| 194 | |
| 195 // Recursive check on all operands' match rules in my match rule | |
| 196 bool InstructForm::is_pinned(FormDict &globals) { | |
| 197 if ( ! _matrule) return false; | |
| 198 | |
| 199 int index = 0; | |
| 200 if (_matrule->find_type("Goto", index)) return true; | |
| 201 if (_matrule->find_type("If", index)) return true; | |
| 202 if (_matrule->find_type("CountedLoopEnd",index)) return true; | |
| 203 if (_matrule->find_type("Return", index)) return true; | |
| 204 if (_matrule->find_type("Rethrow", index)) return true; | |
| 205 if (_matrule->find_type("TailCall", index)) return true; | |
| 206 if (_matrule->find_type("TailJump", index)) return true; | |
| 207 if (_matrule->find_type("Halt", index)) return true; | |
| 208 if (_matrule->find_type("Jump", index)) return true; | |
| 209 | |
| 210 return is_parm(globals); | |
| 211 } | |
| 212 | |
| 213 // Recursive check on all operands' match rules in my match rule | |
| 214 bool InstructForm::is_projection(FormDict &globals) { | |
| 215 if ( ! _matrule) return false; | |
| 216 | |
| 217 int index = 0; | |
| 218 if (_matrule->find_type("Goto", index)) return true; | |
| 219 if (_matrule->find_type("Return", index)) return true; | |
| 220 if (_matrule->find_type("Rethrow", index)) return true; | |
| 221 if (_matrule->find_type("TailCall",index)) return true; | |
| 222 if (_matrule->find_type("TailJump",index)) return true; | |
| 223 if (_matrule->find_type("Halt", index)) return true; | |
| 224 | |
| 225 return false; | |
| 226 } | |
| 227 | |
| 228 // Recursive check on all operands' match rules in my match rule | |
| 229 bool InstructForm::is_parm(FormDict &globals) { | |
| 230 if ( ! _matrule) return false; | |
| 231 | |
| 232 int index = 0; | |
| 233 if (_matrule->find_type("Parm",index)) return true; | |
| 234 | |
| 235 return false; | |
| 236 } | |
| 237 | |
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238 bool InstructForm::is_ideal_negD() const { |
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239 return (_matrule && _matrule->_rChild && strcmp(_matrule->_rChild->_opType, "NegD") == 0); |
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240 } |
| 0 | 241 |
| 242 // Return 'true' if this instruction matches an ideal 'Copy*' node | |
| 243 int InstructForm::is_ideal_copy() const { | |
| 244 return _matrule ? _matrule->is_ideal_copy() : 0; | |
| 245 } | |
| 246 | |
| 247 // Return 'true' if this instruction is too complex to rematerialize. | |
| 248 int InstructForm::is_expensive() const { | |
| 249 // We can prove it is cheap if it has an empty encoding. | |
| 250 // This helps with platform-specific nops like ThreadLocal and RoundFloat. | |
| 251 if (is_empty_encoding()) | |
| 252 return 0; | |
| 253 | |
| 254 if (is_tls_instruction()) | |
| 255 return 1; | |
| 256 | |
| 257 if (_matrule == NULL) return 0; | |
| 258 | |
| 259 return _matrule->is_expensive(); | |
| 260 } | |
| 261 | |
| 262 // Has an empty encoding if _size is a constant zero or there | |
| 263 // are no ins_encode tokens. | |
| 264 int InstructForm::is_empty_encoding() const { | |
| 265 if (_insencode != NULL) { | |
| 266 _insencode->reset(); | |
| 267 if (_insencode->encode_class_iter() == NULL) { | |
| 268 return 1; | |
| 269 } | |
| 270 } | |
| 271 if (_size != NULL && strcmp(_size, "0") == 0) { | |
| 272 return 1; | |
| 273 } | |
| 274 return 0; | |
| 275 } | |
| 276 | |
| 277 int InstructForm::is_tls_instruction() const { | |
| 278 if (_ident != NULL && | |
| 279 ( ! strcmp( _ident,"tlsLoadP") || | |
| 280 ! strncmp(_ident,"tlsLoadP_",9)) ) { | |
| 281 return 1; | |
| 282 } | |
| 283 | |
| 284 if (_matrule != NULL && _insencode != NULL) { | |
| 285 const char* opType = _matrule->_opType; | |
| 286 if (strcmp(opType, "Set")==0) | |
| 287 opType = _matrule->_rChild->_opType; | |
| 288 if (strcmp(opType,"ThreadLocal")==0) { | |
| 289 fprintf(stderr, "Warning: ThreadLocal instruction %s should be named 'tlsLoadP_*'\n", | |
| 290 (_ident == NULL ? "NULL" : _ident)); | |
| 291 return 1; | |
| 292 } | |
| 293 } | |
| 294 | |
| 295 return 0; | |
| 296 } | |
| 297 | |
| 298 | |
| 299 // Return 'true' if this instruction matches an ideal 'If' node | |
| 300 bool InstructForm::is_ideal_if() const { | |
| 301 if( _matrule == NULL ) return false; | |
| 302 | |
| 303 return _matrule->is_ideal_if(); | |
| 304 } | |
| 305 | |
| 306 // Return 'true' if this instruction matches an ideal 'FastLock' node | |
| 307 bool InstructForm::is_ideal_fastlock() const { | |
| 308 if( _matrule == NULL ) return false; | |
| 309 | |
| 310 return _matrule->is_ideal_fastlock(); | |
| 311 } | |
| 312 | |
| 313 // Return 'true' if this instruction matches an ideal 'MemBarXXX' node | |
| 314 bool InstructForm::is_ideal_membar() const { | |
| 315 if( _matrule == NULL ) return false; | |
| 316 | |
| 317 return _matrule->is_ideal_membar(); | |
| 318 } | |
| 319 | |
| 320 // Return 'true' if this instruction matches an ideal 'LoadPC' node | |
| 321 bool InstructForm::is_ideal_loadPC() const { | |
| 322 if( _matrule == NULL ) return false; | |
| 323 | |
| 324 return _matrule->is_ideal_loadPC(); | |
| 325 } | |
| 326 | |
| 327 // Return 'true' if this instruction matches an ideal 'Box' node | |
| 328 bool InstructForm::is_ideal_box() const { | |
| 329 if( _matrule == NULL ) return false; | |
| 330 | |
| 331 return _matrule->is_ideal_box(); | |
| 332 } | |
| 333 | |
| 334 // Return 'true' if this instruction matches an ideal 'Goto' node | |
| 335 bool InstructForm::is_ideal_goto() const { | |
| 336 if( _matrule == NULL ) return false; | |
| 337 | |
| 338 return _matrule->is_ideal_goto(); | |
| 339 } | |
| 340 | |
| 341 // Return 'true' if this instruction matches an ideal 'Jump' node | |
| 342 bool InstructForm::is_ideal_jump() const { | |
| 343 if( _matrule == NULL ) return false; | |
| 344 | |
| 345 return _matrule->is_ideal_jump(); | |
| 346 } | |
| 347 | |
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348 // Return 'true' if instruction matches ideal 'If' | 'Goto' | 'CountedLoopEnd' |
| 0 | 349 bool InstructForm::is_ideal_branch() const { |
| 350 if( _matrule == NULL ) return false; | |
| 351 | |
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352 return _matrule->is_ideal_if() || _matrule->is_ideal_goto(); |
| 0 | 353 } |
| 354 | |
| 355 | |
| 356 // Return 'true' if this instruction matches an ideal 'Return' node | |
| 357 bool InstructForm::is_ideal_return() const { | |
| 358 if( _matrule == NULL ) return false; | |
| 359 | |
| 360 // Check MatchRule to see if the first entry is the ideal "Return" node | |
| 361 int index = 0; | |
| 362 if (_matrule->find_type("Return",index)) return true; | |
| 363 if (_matrule->find_type("Rethrow",index)) return true; | |
| 364 if (_matrule->find_type("TailCall",index)) return true; | |
| 365 if (_matrule->find_type("TailJump",index)) return true; | |
| 366 | |
| 367 return false; | |
| 368 } | |
| 369 | |
| 370 // Return 'true' if this instruction matches an ideal 'Halt' node | |
| 371 bool InstructForm::is_ideal_halt() const { | |
| 372 int index = 0; | |
| 373 return _matrule && _matrule->find_type("Halt",index); | |
| 374 } | |
| 375 | |
| 376 // Return 'true' if this instruction matches an ideal 'SafePoint' node | |
| 377 bool InstructForm::is_ideal_safepoint() const { | |
| 378 int index = 0; | |
| 379 return _matrule && _matrule->find_type("SafePoint",index); | |
| 380 } | |
| 381 | |
| 382 // Return 'true' if this instruction matches an ideal 'Nop' node | |
| 383 bool InstructForm::is_ideal_nop() const { | |
| 384 return _ident && _ident[0] == 'N' && _ident[1] == 'o' && _ident[2] == 'p' && _ident[3] == '_'; | |
| 385 } | |
| 386 | |
| 387 bool InstructForm::is_ideal_control() const { | |
| 388 if ( ! _matrule) return false; | |
| 389 | |
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390 return is_ideal_return() || is_ideal_branch() || _matrule->is_ideal_jump() || is_ideal_halt(); |
| 0 | 391 } |
| 392 | |
| 393 // Return 'true' if this instruction matches an ideal 'Call' node | |
| 394 Form::CallType InstructForm::is_ideal_call() const { | |
| 395 if( _matrule == NULL ) return Form::invalid_type; | |
| 396 | |
| 397 // Check MatchRule to see if the first entry is the ideal "Call" node | |
| 398 int idx = 0; | |
| 399 if(_matrule->find_type("CallStaticJava",idx)) return Form::JAVA_STATIC; | |
| 400 idx = 0; | |
| 401 if(_matrule->find_type("Lock",idx)) return Form::JAVA_STATIC; | |
| 402 idx = 0; | |
| 403 if(_matrule->find_type("Unlock",idx)) return Form::JAVA_STATIC; | |
| 404 idx = 0; | |
| 405 if(_matrule->find_type("CallDynamicJava",idx)) return Form::JAVA_DYNAMIC; | |
| 406 idx = 0; | |
| 407 if(_matrule->find_type("CallRuntime",idx)) return Form::JAVA_RUNTIME; | |
| 408 idx = 0; | |
| 409 if(_matrule->find_type("CallLeaf",idx)) return Form::JAVA_LEAF; | |
| 410 idx = 0; | |
| 411 if(_matrule->find_type("CallLeafNoFP",idx)) return Form::JAVA_LEAF; | |
| 412 idx = 0; | |
| 413 | |
| 414 return Form::invalid_type; | |
| 415 } | |
| 416 | |
| 417 // Return 'true' if this instruction matches an ideal 'Load?' node | |
| 418 Form::DataType InstructForm::is_ideal_load() const { | |
| 419 if( _matrule == NULL ) return Form::none; | |
| 420 | |
| 421 return _matrule->is_ideal_load(); | |
| 422 } | |
| 423 | |
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424 // Return 'true' if this instruction matches an ideal 'LoadKlass' node |
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425 bool InstructForm::skip_antidep_check() const { |
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426 if( _matrule == NULL ) return false; |
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427 |
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428 return _matrule->skip_antidep_check(); |
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429 } |
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430 |
| 0 | 431 // Return 'true' if this instruction matches an ideal 'Load?' node |
| 432 Form::DataType InstructForm::is_ideal_store() const { | |
| 433 if( _matrule == NULL ) return Form::none; | |
| 434 | |
| 435 return _matrule->is_ideal_store(); | |
| 436 } | |
| 437 | |
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438 // Return 'true' if this instruction matches an ideal vector node |
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439 bool InstructForm::is_vector() const { |
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440 if( _matrule == NULL ) return false; |
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441 |
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442 return _matrule->is_vector(); |
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443 } |
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444 |
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445 |
| 0 | 446 // Return the input register that must match the output register |
| 447 // If this is not required, return 0 | |
| 448 uint InstructForm::two_address(FormDict &globals) { | |
| 449 uint matching_input = 0; | |
| 450 if(_components.count() == 0) return 0; | |
| 451 | |
| 452 _components.reset(); | |
| 453 Component *comp = _components.iter(); | |
| 454 // Check if there is a DEF | |
| 455 if( comp->isa(Component::DEF) ) { | |
| 456 // Check that this is a register | |
| 457 const char *def_type = comp->_type; | |
| 458 const Form *form = globals[def_type]; | |
| 459 OperandForm *op = form->is_operand(); | |
| 460 if( op ) { | |
| 461 if( op->constrained_reg_class() != NULL && | |
| 462 op->interface_type(globals) == Form::register_interface ) { | |
| 463 // Remember the local name for equality test later | |
| 464 const char *def_name = comp->_name; | |
| 465 // Check if a component has the same name and is a USE | |
| 466 do { | |
| 467 if( comp->isa(Component::USE) && strcmp(comp->_name,def_name)==0 ) { | |
| 468 return operand_position_format(def_name); | |
| 469 } | |
| 470 } while( (comp = _components.iter()) != NULL); | |
| 471 } | |
| 472 } | |
| 473 } | |
| 474 | |
| 475 return 0; | |
| 476 } | |
| 477 | |
| 478 | |
| 479 // when chaining a constant to an instruction, returns 'true' and sets opType | |
| 480 Form::DataType InstructForm::is_chain_of_constant(FormDict &globals) { | |
| 481 const char *dummy = NULL; | |
| 482 const char *dummy2 = NULL; | |
| 483 return is_chain_of_constant(globals, dummy, dummy2); | |
| 484 } | |
| 485 Form::DataType InstructForm::is_chain_of_constant(FormDict &globals, | |
| 486 const char * &opTypeParam) { | |
| 487 const char *result = NULL; | |
| 488 | |
| 489 return is_chain_of_constant(globals, opTypeParam, result); | |
| 490 } | |
| 491 | |
| 492 Form::DataType InstructForm::is_chain_of_constant(FormDict &globals, | |
| 493 const char * &opTypeParam, const char * &resultParam) { | |
| 494 Form::DataType data_type = Form::none; | |
| 495 if ( ! _matrule) return data_type; | |
| 496 | |
| 497 // !!!!! | |
| 498 // The source of the chain rule is 'position = 1' | |
| 499 uint position = 1; | |
| 500 const char *result = NULL; | |
| 501 const char *name = NULL; | |
| 502 const char *opType = NULL; | |
| 503 // Here base_operand is looking for an ideal type to be returned (opType). | |
| 504 if ( _matrule->is_chain_rule(globals) | |
| 505 && _matrule->base_operand(position, globals, result, name, opType) ) { | |
| 506 data_type = ideal_to_const_type(opType); | |
| 507 | |
| 508 // if it isn't an ideal constant type, just return | |
| 509 if ( data_type == Form::none ) return data_type; | |
| 510 | |
| 511 // Ideal constant types also adjust the opType parameter. | |
| 512 resultParam = result; | |
| 513 opTypeParam = opType; | |
| 514 return data_type; | |
| 515 } | |
| 516 | |
| 517 return data_type; | |
| 518 } | |
| 519 | |
| 520 // Check if a simple chain rule | |
| 521 bool InstructForm::is_simple_chain_rule(FormDict &globals) const { | |
| 522 if( _matrule && _matrule->sets_result() | |
| 523 && _matrule->_rChild->_lChild == NULL | |
| 524 && globals[_matrule->_rChild->_opType] | |
| 525 && globals[_matrule->_rChild->_opType]->is_opclass() ) { | |
| 526 return true; | |
| 527 } | |
| 528 return false; | |
| 529 } | |
| 530 | |
| 531 // check for structural rematerialization | |
| 532 bool InstructForm::rematerialize(FormDict &globals, RegisterForm *registers ) { | |
| 533 bool rematerialize = false; | |
| 534 | |
| 535 Form::DataType data_type = is_chain_of_constant(globals); | |
| 536 if( data_type != Form::none ) | |
| 537 rematerialize = true; | |
| 538 | |
| 539 // Constants | |
| 540 if( _components.count() == 1 && _components[0]->is(Component::USE_DEF) ) | |
| 541 rematerialize = true; | |
| 542 | |
| 543 // Pseudo-constants (values easily available to the runtime) | |
| 544 if (is_empty_encoding() && is_tls_instruction()) | |
| 545 rematerialize = true; | |
| 546 | |
| 547 // 1-input, 1-output, such as copies or increments. | |
| 548 if( _components.count() == 2 && | |
| 549 _components[0]->is(Component::DEF) && | |
| 550 _components[1]->isa(Component::USE) ) | |
| 551 rematerialize = true; | |
| 552 | |
| 553 // Check for an ideal 'Load?' and eliminate rematerialize option | |
| 554 if ( is_ideal_load() != Form::none || // Ideal load? Do not rematerialize | |
| 555 is_ideal_copy() != Form::none || // Ideal copy? Do not rematerialize | |
| 556 is_expensive() != Form::none) { // Expensive? Do not rematerialize | |
| 557 rematerialize = false; | |
| 558 } | |
| 559 | |
| 560 // Always rematerialize the flags. They are more expensive to save & | |
| 561 // restore than to recompute (and possibly spill the compare's inputs). | |
| 562 if( _components.count() >= 1 ) { | |
| 563 Component *c = _components[0]; | |
| 564 const Form *form = globals[c->_type]; | |
| 565 OperandForm *opform = form->is_operand(); | |
| 566 if( opform ) { | |
| 567 // Avoid the special stack_slots register classes | |
| 568 const char *rc_name = opform->constrained_reg_class(); | |
| 569 if( rc_name ) { | |
| 570 if( strcmp(rc_name,"stack_slots") ) { | |
| 571 // Check for ideal_type of RegFlags | |
| 572 const char *type = opform->ideal_type( globals, registers ); | |
| 6850 | 573 if( (type != NULL) && !strcmp(type, "RegFlags") ) |
| 0 | 574 rematerialize = true; |
| 575 } else | |
| 576 rematerialize = false; // Do not rematerialize things target stk | |
| 577 } | |
| 578 } | |
| 579 } | |
| 580 | |
| 581 return rematerialize; | |
| 582 } | |
| 583 | |
| 584 // loads from memory, so must check for anti-dependence | |
| 585 bool InstructForm::needs_anti_dependence_check(FormDict &globals) const { | |
|
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586 if ( skip_antidep_check() ) return false; |
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587 |
| 0 | 588 // Machine independent loads must be checked for anti-dependences |
| 589 if( is_ideal_load() != Form::none ) return true; | |
| 590 | |
| 591 // !!!!! !!!!! !!!!! | |
| 592 // TEMPORARY | |
| 593 // if( is_simple_chain_rule(globals) ) return false; | |
| 594 | |
| 681 | 595 // String.(compareTo/equals/indexOf) and Arrays.equals use many memorys edges, |
| 596 // but writes none | |
| 0 | 597 if( _matrule && _matrule->_rChild && |
| 681 | 598 ( strcmp(_matrule->_rChild->_opType,"StrComp" )==0 || |
| 599 strcmp(_matrule->_rChild->_opType,"StrEquals" )==0 || | |
| 600 strcmp(_matrule->_rChild->_opType,"StrIndexOf" )==0 || | |
| 601 strcmp(_matrule->_rChild->_opType,"AryEq" )==0 )) | |
| 0 | 602 return true; |
| 603 | |
| 604 // Check if instruction has a USE of a memory operand class, but no defs | |
| 605 bool USE_of_memory = false; | |
| 606 bool DEF_of_memory = false; | |
| 607 Component *comp = NULL; | |
| 608 ComponentList &components = (ComponentList &)_components; | |
| 609 | |
| 610 components.reset(); | |
| 611 while( (comp = components.iter()) != NULL ) { | |
| 612 const Form *form = globals[comp->_type]; | |
| 613 if( !form ) continue; | |
| 614 OpClassForm *op = form->is_opclass(); | |
| 615 if( !op ) continue; | |
| 616 if( form->interface_type(globals) == Form::memory_interface ) { | |
| 617 if( comp->isa(Component::USE) ) USE_of_memory = true; | |
| 618 if( comp->isa(Component::DEF) ) { | |
| 619 OperandForm *oper = form->is_operand(); | |
| 620 if( oper && oper->is_user_name_for_sReg() ) { | |
| 621 // Stack slots are unaliased memory handled by allocator | |
| 622 oper = oper; // debug stopping point !!!!! | |
| 623 } else { | |
| 624 DEF_of_memory = true; | |
| 625 } | |
| 626 } | |
| 627 } | |
| 628 } | |
| 629 return (USE_of_memory && !DEF_of_memory); | |
| 630 } | |
| 631 | |
| 632 | |
| 633 bool InstructForm::is_wide_memory_kill(FormDict &globals) const { | |
| 634 if( _matrule == NULL ) return false; | |
| 635 if( !_matrule->_opType ) return false; | |
| 636 | |
| 637 if( strcmp(_matrule->_opType,"MemBarRelease") == 0 ) return true; | |
| 638 if( strcmp(_matrule->_opType,"MemBarAcquire") == 0 ) return true; | |
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639 if( strcmp(_matrule->_opType,"MemBarReleaseLock") == 0 ) return true; |
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640 if( strcmp(_matrule->_opType,"MemBarAcquireLock") == 0 ) return true; |
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641 if( strcmp(_matrule->_opType,"MemBarStoreStore") == 0 ) return true; |
| 0 | 642 |
| 643 return false; | |
| 644 } | |
| 645 | |
| 646 int InstructForm::memory_operand(FormDict &globals) const { | |
| 647 // Machine independent loads must be checked for anti-dependences | |
| 648 // Check if instruction has a USE of a memory operand class, or a def. | |
| 649 int USE_of_memory = 0; | |
| 650 int DEF_of_memory = 0; | |
| 651 const char* last_memory_DEF = NULL; // to test DEF/USE pairing in asserts | |
| 652 Component *unique = NULL; | |
| 653 Component *comp = NULL; | |
| 654 ComponentList &components = (ComponentList &)_components; | |
| 655 | |
| 656 components.reset(); | |
| 657 while( (comp = components.iter()) != NULL ) { | |
| 658 const Form *form = globals[comp->_type]; | |
| 659 if( !form ) continue; | |
| 660 OpClassForm *op = form->is_opclass(); | |
| 661 if( !op ) continue; | |
| 662 if( op->stack_slots_only(globals) ) continue; | |
| 663 if( form->interface_type(globals) == Form::memory_interface ) { | |
| 664 if( comp->isa(Component::DEF) ) { | |
| 665 last_memory_DEF = comp->_name; | |
| 666 DEF_of_memory++; | |
| 667 unique = comp; | |
| 668 } else if( comp->isa(Component::USE) ) { | |
| 669 if( last_memory_DEF != NULL ) { | |
| 670 assert(0 == strcmp(last_memory_DEF, comp->_name), "every memory DEF is followed by a USE of the same name"); | |
| 671 last_memory_DEF = NULL; | |
| 672 } | |
| 673 USE_of_memory++; | |
| 674 if (DEF_of_memory == 0) // defs take precedence | |
| 675 unique = comp; | |
| 676 } else { | |
| 677 assert(last_memory_DEF == NULL, "unpaired memory DEF"); | |
| 678 } | |
| 679 } | |
| 680 } | |
| 681 assert(last_memory_DEF == NULL, "unpaired memory DEF"); | |
| 682 assert(USE_of_memory >= DEF_of_memory, "unpaired memory DEF"); | |
| 683 USE_of_memory -= DEF_of_memory; // treat paired DEF/USE as one occurrence | |
| 684 if( (USE_of_memory + DEF_of_memory) > 0 ) { | |
| 685 if( is_simple_chain_rule(globals) ) { | |
| 686 //fprintf(stderr, "Warning: chain rule is not really a memory user.\n"); | |
| 687 //((InstructForm*)this)->dump(); | |
| 688 // Preceding code prints nothing on sparc and these insns on intel: | |
| 689 // leaP8 leaP32 leaPIdxOff leaPIdxScale leaPIdxScaleOff leaP8 leaP32 | |
| 690 // leaPIdxOff leaPIdxScale leaPIdxScaleOff | |
| 691 return NO_MEMORY_OPERAND; | |
| 692 } | |
| 693 | |
| 694 if( DEF_of_memory == 1 ) { | |
| 695 assert(unique != NULL, ""); | |
| 696 if( USE_of_memory == 0 ) { | |
| 697 // unique def, no uses | |
| 698 } else { | |
| 699 // // unique def, some uses | |
| 700 // // must return bottom unless all uses match def | |
| 701 // unique = NULL; | |
| 702 } | |
| 703 } else if( DEF_of_memory > 0 ) { | |
| 704 // multiple defs, don't care about uses | |
| 705 unique = NULL; | |
| 706 } else if( USE_of_memory == 1) { | |
| 707 // unique use, no defs | |
| 708 assert(unique != NULL, ""); | |
| 709 } else if( USE_of_memory > 0 ) { | |
| 710 // multiple uses, no defs | |
| 711 unique = NULL; | |
| 712 } else { | |
| 713 assert(false, "bad case analysis"); | |
| 714 } | |
| 715 // process the unique DEF or USE, if there is one | |
| 716 if( unique == NULL ) { | |
| 717 return MANY_MEMORY_OPERANDS; | |
| 718 } else { | |
| 719 int pos = components.operand_position(unique->_name); | |
| 720 if( unique->isa(Component::DEF) ) { | |
| 721 pos += 1; // get corresponding USE from DEF | |
| 722 } | |
| 723 assert(pos >= 1, "I was just looking at it!"); | |
| 724 return pos; | |
| 725 } | |
| 726 } | |
| 727 | |
| 728 // missed the memory op?? | |
| 729 if( true ) { // %%% should not be necessary | |
| 730 if( is_ideal_store() != Form::none ) { | |
| 731 fprintf(stderr, "Warning: cannot find memory opnd in instr.\n"); | |
| 732 ((InstructForm*)this)->dump(); | |
| 733 // pretend it has multiple defs and uses | |
| 734 return MANY_MEMORY_OPERANDS; | |
| 735 } | |
| 736 if( is_ideal_load() != Form::none ) { | |
| 737 fprintf(stderr, "Warning: cannot find memory opnd in instr.\n"); | |
| 738 ((InstructForm*)this)->dump(); | |
| 739 // pretend it has multiple uses and no defs | |
| 740 return MANY_MEMORY_OPERANDS; | |
| 741 } | |
| 742 } | |
| 743 | |
| 744 return NO_MEMORY_OPERAND; | |
| 745 } | |
| 746 | |
| 747 | |
| 748 // This instruction captures the machine-independent bottom_type | |
| 749 // Expected use is for pointer vs oop determination for LoadP | |
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750 bool InstructForm::captures_bottom_type(FormDict &globals) const { |
| 0 | 751 if( _matrule && _matrule->_rChild && |
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752 (!strcmp(_matrule->_rChild->_opType,"CastPP") || // new result type |
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753 !strcmp(_matrule->_rChild->_opType,"CastX2P") || // new result type |
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754 !strcmp(_matrule->_rChild->_opType,"DecodeN") || |
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755 !strcmp(_matrule->_rChild->_opType,"EncodeP") || |
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756 !strcmp(_matrule->_rChild->_opType,"DecodeNKlass") || |
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757 !strcmp(_matrule->_rChild->_opType,"EncodePKlass") || |
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758 !strcmp(_matrule->_rChild->_opType,"LoadN") || |
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759 !strcmp(_matrule->_rChild->_opType,"LoadNKlass") || |
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760 !strcmp(_matrule->_rChild->_opType,"CreateEx") || // type of exception |
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761 !strcmp(_matrule->_rChild->_opType,"CheckCastPP") || |
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762 !strcmp(_matrule->_rChild->_opType,"GetAndSetP") || |
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763 !strcmp(_matrule->_rChild->_opType,"GetAndSetN")) ) return true; |
| 0 | 764 else if ( is_ideal_load() == Form::idealP ) return true; |
| 765 else if ( is_ideal_store() != Form::none ) return true; | |
| 766 | |
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767 if (needs_base_oop_edge(globals)) return true; |
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768 |
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769 if (is_vector()) return true; |
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770 if (is_mach_constant()) return true; |
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771 |
| 0 | 772 return false; |
| 773 } | |
| 774 | |
| 775 | |
| 776 // Access instr_cost attribute or return NULL. | |
| 777 const char* InstructForm::cost() { | |
| 778 for (Attribute* cur = _attribs; cur != NULL; cur = (Attribute*)cur->_next) { | |
| 779 if( strcmp(cur->_ident,AttributeForm::_ins_cost) == 0 ) { | |
| 780 return cur->_val; | |
| 781 } | |
| 782 } | |
| 783 return NULL; | |
| 784 } | |
| 785 | |
| 786 // Return count of top-level operands. | |
| 787 uint InstructForm::num_opnds() { | |
| 788 int num_opnds = _components.num_operands(); | |
| 789 | |
| 790 // Need special handling for matching some ideal nodes | |
| 791 // i.e. Matching a return node | |
| 792 /* | |
| 793 if( _matrule ) { | |
| 794 if( strcmp(_matrule->_opType,"Return" )==0 || | |
| 795 strcmp(_matrule->_opType,"Halt" )==0 ) | |
| 796 return 3; | |
| 797 } | |
| 798 */ | |
| 799 return num_opnds; | |
| 800 } | |
| 801 | |
| 10389 | 802 const char* InstructForm::opnd_ident(int idx) { |
| 6850 | 803 return _components.at(idx)->_name; |
| 804 } | |
| 805 | |
| 10389 | 806 const char* InstructForm::unique_opnd_ident(uint idx) { |
| 6850 | 807 uint i; |
| 808 for (i = 1; i < num_opnds(); ++i) { | |
| 809 if (unique_opnds_idx(i) == idx) { | |
| 810 break; | |
| 811 } | |
| 812 } | |
| 813 return (_components.at(i) != NULL) ? _components.at(i)->_name : ""; | |
| 814 } | |
| 815 | |
| 0 | 816 // Return count of unmatched operands. |
| 817 uint InstructForm::num_post_match_opnds() { | |
| 818 uint num_post_match_opnds = _components.count(); | |
| 819 uint num_match_opnds = _components.match_count(); | |
| 820 num_post_match_opnds = num_post_match_opnds - num_match_opnds; | |
| 821 | |
| 822 return num_post_match_opnds; | |
| 823 } | |
| 824 | |
| 825 // Return the number of leaves below this complex operand | |
| 826 uint InstructForm::num_consts(FormDict &globals) const { | |
| 827 if ( ! _matrule) return 0; | |
| 828 | |
| 829 // This is a recursive invocation on all operands in the matchrule | |
| 830 return _matrule->num_consts(globals); | |
| 831 } | |
| 832 | |
| 833 // Constants in match rule with specified type | |
| 834 uint InstructForm::num_consts(FormDict &globals, Form::DataType type) const { | |
| 835 if ( ! _matrule) return 0; | |
| 836 | |
| 837 // This is a recursive invocation on all operands in the matchrule | |
| 838 return _matrule->num_consts(globals, type); | |
| 839 } | |
| 840 | |
| 841 | |
| 842 // Return the register class associated with 'leaf'. | |
| 843 const char *InstructForm::out_reg_class(FormDict &globals) { | |
| 844 assert( false, "InstructForm::out_reg_class(FormDict &globals); Not Implemented"); | |
| 845 | |
| 846 return NULL; | |
| 847 } | |
| 848 | |
| 849 | |
| 850 | |
| 851 // Lookup the starting position of inputs we are interested in wrt. ideal nodes | |
| 852 uint InstructForm::oper_input_base(FormDict &globals) { | |
| 853 if( !_matrule ) return 1; // Skip control for most nodes | |
| 854 | |
| 855 // Need special handling for matching some ideal nodes | |
| 856 // i.e. Matching a return node | |
| 857 if( strcmp(_matrule->_opType,"Return" )==0 || | |
| 858 strcmp(_matrule->_opType,"Rethrow" )==0 || | |
| 859 strcmp(_matrule->_opType,"TailCall" )==0 || | |
| 860 strcmp(_matrule->_opType,"TailJump" )==0 || | |
| 861 strcmp(_matrule->_opType,"SafePoint" )==0 || | |
| 862 strcmp(_matrule->_opType,"Halt" )==0 ) | |
| 863 return AdlcVMDeps::Parms; // Skip the machine-state edges | |
| 864 | |
| 865 if( _matrule->_rChild && | |
|
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866 ( strcmp(_matrule->_rChild->_opType,"AryEq" )==0 || |
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867 strcmp(_matrule->_rChild->_opType,"StrComp" )==0 || |
| 681 | 868 strcmp(_matrule->_rChild->_opType,"StrEquals" )==0 || |
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869 strcmp(_matrule->_rChild->_opType,"StrIndexOf")==0 || |
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870 strcmp(_matrule->_rChild->_opType,"EncodeISOArray")==0)) { |
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871 // String.(compareTo/equals/indexOf) and Arrays.equals |
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872 // and sun.nio.cs.iso8859_1$Encoder.EncodeISOArray |
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873 // take 1 control and 1 memory edges. |
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874 return 2; |
| 0 | 875 } |
| 876 | |
| 877 // Check for handling of 'Memory' input/edge in the ideal world. | |
| 878 // The AD file writer is shielded from knowledge of these edges. | |
| 879 int base = 1; // Skip control | |
| 880 base += _matrule->needs_ideal_memory_edge(globals); | |
| 881 | |
| 882 // Also skip the base-oop value for uses of derived oops. | |
| 883 // The AD file writer is shielded from knowledge of these edges. | |
| 884 base += needs_base_oop_edge(globals); | |
| 885 | |
| 886 return base; | |
| 887 } | |
| 888 | |
| 6850 | 889 // This function determines the order of the MachOper in _opnds[] |
| 890 // by writing the operand names into the _components list. | |
| 891 // | |
| 0 | 892 // Implementation does not modify state of internal structures |
| 893 void InstructForm::build_components() { | |
| 894 // Add top-level operands to the components | |
| 895 if (_matrule) _matrule->append_components(_localNames, _components); | |
| 896 | |
| 897 // Add parameters that "do not appear in match rule". | |
| 898 bool has_temp = false; | |
| 899 const char *name; | |
| 900 const char *kill_name = NULL; | |
| 901 for (_parameters.reset(); (name = _parameters.iter()) != NULL;) { | |
| 902 OperandForm *opForm = (OperandForm*)_localNames[name]; | |
| 903 | |
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904 Effect* e = NULL; |
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905 { |
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906 const Form* form = _effects[name]; |
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907 e = form ? form->is_effect() : NULL; |
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908 } |
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909 |
| 0 | 910 if (e != NULL) { |
| 911 has_temp |= e->is(Component::TEMP); | |
| 912 | |
| 913 // KILLs must be declared after any TEMPs because TEMPs are real | |
| 914 // uses so their operand numbering must directly follow the real | |
| 915 // inputs from the match rule. Fixing the numbering seems | |
| 916 // complex so simply enforce the restriction during parse. | |
| 917 if (kill_name != NULL && | |
| 918 e->isa(Component::TEMP) && !e->isa(Component::DEF)) { | |
| 919 OperandForm* kill = (OperandForm*)_localNames[kill_name]; | |
| 920 globalAD->syntax_err(_linenum, "%s: %s %s must be at the end of the argument list\n", | |
| 921 _ident, kill->_ident, kill_name); | |
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922 } else if (e->isa(Component::KILL) && !e->isa(Component::USE)) { |
| 0 | 923 kill_name = name; |
| 924 } | |
| 925 } | |
| 926 | |
| 927 const Component *component = _components.search(name); | |
| 928 if ( component == NULL ) { | |
| 929 if (e) { | |
| 930 _components.insert(name, opForm->_ident, e->_use_def, false); | |
| 931 component = _components.search(name); | |
| 932 if (component->isa(Component::USE) && !component->isa(Component::TEMP) && _matrule) { | |
| 933 const Form *form = globalAD->globalNames()[component->_type]; | |
| 934 assert( form, "component type must be a defined form"); | |
| 935 OperandForm *op = form->is_operand(); | |
| 936 if (op->_interface && op->_interface->is_RegInterface()) { | |
| 937 globalAD->syntax_err(_linenum, "%s: illegal USE of non-input: %s %s\n", | |
| 938 _ident, opForm->_ident, name); | |
| 939 } | |
| 940 } | |
| 941 } else { | |
| 942 // This would be a nice warning but it triggers in a few places in a benign way | |
| 943 // if (_matrule != NULL && !expands()) { | |
| 944 // globalAD->syntax_err(_linenum, "%s: %s %s not mentioned in effect or match rule\n", | |
| 945 // _ident, opForm->_ident, name); | |
| 946 // } | |
| 947 _components.insert(name, opForm->_ident, Component::INVALID, false); | |
| 948 } | |
| 949 } | |
| 950 else if (e) { | |
| 951 // Component was found in the list | |
| 952 // Check if there is a new effect that requires an extra component. | |
| 953 // This happens when adding 'USE' to a component that is not yet one. | |
| 954 if ((!component->isa( Component::USE) && ((e->_use_def & Component::USE) != 0))) { | |
| 955 if (component->isa(Component::USE) && _matrule) { | |
| 956 const Form *form = globalAD->globalNames()[component->_type]; | |
| 957 assert( form, "component type must be a defined form"); | |
| 958 OperandForm *op = form->is_operand(); | |
| 959 if (op->_interface && op->_interface->is_RegInterface()) { | |
| 960 globalAD->syntax_err(_linenum, "%s: illegal USE of non-input: %s %s\n", | |
| 961 _ident, opForm->_ident, name); | |
| 962 } | |
| 963 } | |
| 964 _components.insert(name, opForm->_ident, e->_use_def, false); | |
| 965 } else { | |
| 966 Component *comp = (Component*)component; | |
| 967 comp->promote_use_def_info(e->_use_def); | |
| 968 } | |
| 969 // Component positions are zero based. | |
| 970 int pos = _components.operand_position(name); | |
| 971 assert( ! (component->isa(Component::DEF) && (pos >= 1)), | |
| 972 "Component::DEF can only occur in the first position"); | |
| 973 } | |
| 974 } | |
| 975 | |
| 976 // Resolving the interactions between expand rules and TEMPs would | |
| 977 // be complex so simply disallow it. | |
| 978 if (_matrule == NULL && has_temp) { | |
| 979 globalAD->syntax_err(_linenum, "%s: TEMPs without match rule isn't supported\n", _ident); | |
| 980 } | |
| 981 | |
| 982 return; | |
| 983 } | |
| 984 | |
| 985 // Return zero-based position in component list; -1 if not in list. | |
| 986 int InstructForm::operand_position(const char *name, int usedef) { | |
| 6850 | 987 return unique_opnds_idx(_components.operand_position(name, usedef, this)); |
| 0 | 988 } |
| 989 | |
| 990 int InstructForm::operand_position_format(const char *name) { | |
| 6850 | 991 return unique_opnds_idx(_components.operand_position_format(name, this)); |
| 0 | 992 } |
| 993 | |
| 994 // Return zero-based position in component list; -1 if not in list. | |
| 995 int InstructForm::label_position() { | |
| 996 return unique_opnds_idx(_components.label_position()); | |
| 997 } | |
| 998 | |
| 999 int InstructForm::method_position() { | |
| 1000 return unique_opnds_idx(_components.method_position()); | |
| 1001 } | |
| 1002 | |
| 1003 // Return number of relocation entries needed for this instruction. | |
| 1004 uint InstructForm::reloc(FormDict &globals) { | |
| 1005 uint reloc_entries = 0; | |
| 1006 // Check for "Call" nodes | |
| 1007 if ( is_ideal_call() ) ++reloc_entries; | |
| 1008 if ( is_ideal_return() ) ++reloc_entries; | |
| 1009 if ( is_ideal_safepoint() ) ++reloc_entries; | |
| 1010 | |
| 1011 | |
| 1012 // Check if operands MAYBE oop pointers, by checking for ConP elements | |
| 1013 // Proceed through the leaves of the match-tree and check for ConPs | |
| 1014 if ( _matrule != NULL ) { | |
| 1015 uint position = 0; | |
| 1016 const char *result = NULL; | |
| 1017 const char *name = NULL; | |
| 1018 const char *opType = NULL; | |
| 1019 while (_matrule->base_operand(position, globals, result, name, opType)) { | |
| 1020 if ( strcmp(opType,"ConP") == 0 ) { | |
| 1021 #ifdef SPARC | |
| 1022 reloc_entries += 2; // 1 for sethi + 1 for setlo | |
| 1023 #else | |
| 1024 ++reloc_entries; | |
| 1025 #endif | |
| 1026 } | |
| 1027 ++position; | |
| 1028 } | |
| 1029 } | |
| 1030 | |
| 1031 // Above is only a conservative estimate | |
| 1032 // because it did not check contents of operand classes. | |
| 1033 // !!!!! !!!!! | |
| 1034 // Add 1 to reloc info for each operand class in the component list. | |
| 1035 Component *comp; | |
| 1036 _components.reset(); | |
| 1037 while ( (comp = _components.iter()) != NULL ) { | |
| 1038 const Form *form = globals[comp->_type]; | |
| 1039 assert( form, "Did not find component's type in global names"); | |
| 1040 const OpClassForm *opc = form->is_opclass(); | |
| 1041 const OperandForm *oper = form->is_operand(); | |
| 1042 if ( opc && (oper == NULL) ) { | |
| 1043 ++reloc_entries; | |
| 1044 } else if ( oper ) { | |
| 1045 // floats and doubles loaded out of method's constant pool require reloc info | |
| 1046 Form::DataType type = oper->is_base_constant(globals); | |
| 1047 if ( (type == Form::idealF) || (type == Form::idealD) ) { | |
| 1048 ++reloc_entries; | |
| 1049 } | |
| 1050 } | |
| 1051 } | |
| 1052 | |
| 1053 // Float and Double constants may come from the CodeBuffer table | |
| 1054 // and require relocatable addresses for access | |
| 1055 // !!!!! | |
| 1056 // Check for any component being an immediate float or double. | |
| 1057 Form::DataType data_type = is_chain_of_constant(globals); | |
| 1058 if( data_type==idealD || data_type==idealF ) { | |
| 1059 #ifdef SPARC | |
| 1060 // sparc required more relocation entries for floating constants | |
| 1061 // (expires 9/98) | |
| 1062 reloc_entries += 6; | |
| 1063 #else | |
| 1064 reloc_entries++; | |
| 1065 #endif | |
| 1066 } | |
| 1067 | |
| 1068 return reloc_entries; | |
| 1069 } | |
| 1070 | |
| 1071 // Utility function defined in archDesc.cpp | |
| 1072 extern bool is_def(int usedef); | |
| 1073 | |
| 1074 // Return the result of reducing an instruction | |
| 1075 const char *InstructForm::reduce_result() { | |
| 1076 const char* result = "Universe"; // default | |
| 1077 _components.reset(); | |
| 1078 Component *comp = _components.iter(); | |
| 1079 if (comp != NULL && comp->isa(Component::DEF)) { | |
| 1080 result = comp->_type; | |
| 1081 // Override this if the rule is a store operation: | |
| 1082 if (_matrule && _matrule->_rChild && | |
| 1083 is_store_to_memory(_matrule->_rChild->_opType)) | |
| 1084 result = "Universe"; | |
| 1085 } | |
| 1086 return result; | |
| 1087 } | |
| 1088 | |
| 1089 // Return the name of the operand on the right hand side of the binary match | |
| 1090 // Return NULL if there is no right hand side | |
| 1091 const char *InstructForm::reduce_right(FormDict &globals) const { | |
| 1092 if( _matrule == NULL ) return NULL; | |
| 1093 return _matrule->reduce_right(globals); | |
| 1094 } | |
| 1095 | |
| 1096 // Similar for left | |
| 1097 const char *InstructForm::reduce_left(FormDict &globals) const { | |
| 1098 if( _matrule == NULL ) return NULL; | |
| 1099 return _matrule->reduce_left(globals); | |
| 1100 } | |
| 1101 | |
| 1102 | |
| 1103 // Base class for this instruction, MachNode except for calls | |
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1104 const char *InstructForm::mach_base_class(FormDict &globals) const { |
| 0 | 1105 if( is_ideal_call() == Form::JAVA_STATIC ) { |
| 1106 return "MachCallStaticJavaNode"; | |
| 1107 } | |
| 1108 else if( is_ideal_call() == Form::JAVA_DYNAMIC ) { | |
| 1109 return "MachCallDynamicJavaNode"; | |
| 1110 } | |
| 1111 else if( is_ideal_call() == Form::JAVA_RUNTIME ) { | |
| 1112 return "MachCallRuntimeNode"; | |
| 1113 } | |
| 1114 else if( is_ideal_call() == Form::JAVA_LEAF ) { | |
| 1115 return "MachCallLeafNode"; | |
| 1116 } | |
| 1117 else if (is_ideal_return()) { | |
| 1118 return "MachReturnNode"; | |
| 1119 } | |
| 1120 else if (is_ideal_halt()) { | |
| 1121 return "MachHaltNode"; | |
| 1122 } | |
| 1123 else if (is_ideal_safepoint()) { | |
| 1124 return "MachSafePointNode"; | |
| 1125 } | |
| 1126 else if (is_ideal_if()) { | |
| 1127 return "MachIfNode"; | |
| 1128 } | |
| 3842 | 1129 else if (is_ideal_goto()) { |
| 1130 return "MachGotoNode"; | |
| 1131 } | |
| 0 | 1132 else if (is_ideal_fastlock()) { |
| 1133 return "MachFastLockNode"; | |
| 1134 } | |
| 1135 else if (is_ideal_nop()) { | |
| 1136 return "MachNopNode"; | |
| 1137 } | |
| 2008 | 1138 else if (is_mach_constant()) { |
| 1139 return "MachConstantNode"; | |
| 1140 } | |
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1141 else if (captures_bottom_type(globals)) { |
| 0 | 1142 return "MachTypeNode"; |
| 1143 } else { | |
| 1144 return "MachNode"; | |
| 1145 } | |
| 1146 assert( false, "ShouldNotReachHere()"); | |
| 1147 return NULL; | |
| 1148 } | |
| 1149 | |
| 1150 // Compare the instruction predicates for textual equality | |
| 1151 bool equivalent_predicates( const InstructForm *instr1, const InstructForm *instr2 ) { | |
| 1152 const Predicate *pred1 = instr1->_predicate; | |
| 1153 const Predicate *pred2 = instr2->_predicate; | |
| 1154 if( pred1 == NULL && pred2 == NULL ) { | |
| 1155 // no predicates means they are identical | |
| 1156 return true; | |
| 1157 } | |
| 1158 if( pred1 != NULL && pred2 != NULL ) { | |
| 1159 // compare the predicates | |
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1160 if (ADLParser::equivalent_expressions(pred1->_pred, pred2->_pred)) { |
| 0 | 1161 return true; |
| 1162 } | |
| 1163 } | |
| 1164 | |
| 1165 return false; | |
| 1166 } | |
| 1167 | |
| 1168 // Check if this instruction can cisc-spill to 'alternate' | |
| 1169 bool InstructForm::cisc_spills_to(ArchDesc &AD, InstructForm *instr) { | |
| 1170 assert( _matrule != NULL && instr->_matrule != NULL, "must have match rules"); | |
| 1171 // Do not replace if a cisc-version has been found. | |
| 1172 if( cisc_spill_operand() != Not_cisc_spillable ) return false; | |
| 1173 | |
| 1174 int cisc_spill_operand = Maybe_cisc_spillable; | |
| 1175 char *result = NULL; | |
| 1176 char *result2 = NULL; | |
| 1177 const char *op_name = NULL; | |
| 1178 const char *reg_type = NULL; | |
| 1179 FormDict &globals = AD.globalNames(); | |
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1180 cisc_spill_operand = _matrule->matchrule_cisc_spill_match(globals, AD.get_registers(), instr->_matrule, op_name, reg_type); |
| 0 | 1181 if( (cisc_spill_operand != Not_cisc_spillable) && (op_name != NULL) && equivalent_predicates(this, instr) ) { |
| 1182 cisc_spill_operand = operand_position(op_name, Component::USE); | |
| 1183 int def_oper = operand_position(op_name, Component::DEF); | |
| 1184 if( def_oper == NameList::Not_in_list && instr->num_opnds() == num_opnds()) { | |
| 1185 // Do not support cisc-spilling for destination operands and | |
| 1186 // make sure they have the same number of operands. | |
| 1187 _cisc_spill_alternate = instr; | |
| 1188 instr->set_cisc_alternate(true); | |
| 1189 if( AD._cisc_spill_debug ) { | |
| 1190 fprintf(stderr, "Instruction %s cisc-spills-to %s\n", _ident, instr->_ident); | |
| 1191 fprintf(stderr, " using operand %s %s at index %d\n", reg_type, op_name, cisc_spill_operand); | |
| 1192 } | |
| 1193 // Record that a stack-version of the reg_mask is needed | |
| 1194 // !!!!! | |
| 1195 OperandForm *oper = (OperandForm*)(globals[reg_type]->is_operand()); | |
| 1196 assert( oper != NULL, "cisc-spilling non operand"); | |
| 1197 const char *reg_class_name = oper->constrained_reg_class(); | |
| 1198 AD.set_stack_or_reg(reg_class_name); | |
| 1199 const char *reg_mask_name = AD.reg_mask(*oper); | |
| 1200 set_cisc_reg_mask_name(reg_mask_name); | |
| 1201 const char *stack_or_reg_mask_name = AD.stack_or_reg_mask(*oper); | |
| 1202 } else { | |
| 1203 cisc_spill_operand = Not_cisc_spillable; | |
| 1204 } | |
| 1205 } else { | |
| 1206 cisc_spill_operand = Not_cisc_spillable; | |
| 1207 } | |
| 1208 | |
| 1209 set_cisc_spill_operand(cisc_spill_operand); | |
| 1210 return (cisc_spill_operand != Not_cisc_spillable); | |
| 1211 } | |
| 1212 | |
| 1213 // Check to see if this instruction can be replaced with the short branch | |
| 1214 // instruction `short-branch' | |
| 1215 bool InstructForm::check_branch_variant(ArchDesc &AD, InstructForm *short_branch) { | |
| 1216 if (_matrule != NULL && | |
| 1217 this != short_branch && // Don't match myself | |
| 1218 !is_short_branch() && // Don't match another short branch variant | |
| 1219 reduce_result() != NULL && | |
| 1220 strcmp(reduce_result(), short_branch->reduce_result()) == 0 && | |
| 1221 _matrule->equivalent(AD.globalNames(), short_branch->_matrule)) { | |
| 1222 // The instructions are equivalent. | |
| 3851 | 1223 |
| 1224 // Now verify that both instructions have the same parameters and | |
| 1225 // the same effects. Both branch forms should have the same inputs | |
| 1226 // and resulting projections to correctly replace a long branch node | |
| 1227 // with corresponding short branch node during code generation. | |
| 1228 | |
| 1229 bool different = false; | |
| 1230 if (short_branch->_components.count() != _components.count()) { | |
| 1231 different = true; | |
| 1232 } else if (_components.count() > 0) { | |
| 1233 short_branch->_components.reset(); | |
| 1234 _components.reset(); | |
| 1235 Component *comp; | |
| 1236 while ((comp = _components.iter()) != NULL) { | |
| 1237 Component *short_comp = short_branch->_components.iter(); | |
| 1238 if (short_comp == NULL || | |
| 1239 short_comp->_type != comp->_type || | |
| 1240 short_comp->_usedef != comp->_usedef) { | |
| 1241 different = true; | |
| 1242 break; | |
| 1243 } | |
| 1244 } | |
| 1245 if (short_branch->_components.iter() != NULL) | |
| 1246 different = true; | |
| 1247 } | |
| 1248 if (different) { | |
| 1249 globalAD->syntax_err(short_branch->_linenum, "Instruction %s and its short form %s have different parameters\n", _ident, short_branch->_ident); | |
| 1250 } | |
| 6850 | 1251 if (AD._adl_debug > 1 || AD._short_branch_debug) { |
| 0 | 1252 fprintf(stderr, "Instruction %s has short form %s\n", _ident, short_branch->_ident); |
| 1253 } | |
| 1254 _short_branch_form = short_branch; | |
| 1255 return true; | |
| 1256 } | |
| 1257 return false; | |
| 1258 } | |
| 1259 | |
| 1260 | |
| 1261 // --------------------------- FILE *output_routines | |
| 1262 // | |
| 1263 // Generate the format call for the replacement variable | |
| 1264 void InstructForm::rep_var_format(FILE *fp, const char *rep_var) { | |
| 2008 | 1265 // Handle special constant table variables. |
| 1266 if (strcmp(rep_var, "constanttablebase") == 0) { | |
| 1267 fprintf(fp, "char reg[128]; ra->dump_register(in(mach_constant_base_node_input()), reg);\n"); | |
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1268 fprintf(fp, " st->print(\"%%s\", reg);\n"); |
| 2008 | 1269 return; |
| 1270 } | |
| 1271 if (strcmp(rep_var, "constantoffset") == 0) { | |
| 14909 | 1272 fprintf(fp, "st->print(\"#%%d\", constant_offset());\n"); |
| 2008 | 1273 return; |
| 1274 } | |
| 1275 if (strcmp(rep_var, "constantaddress") == 0) { | |
| 14909 | 1276 fprintf(fp, "st->print(\"constant table base + #%%d\", constant_offset());\n"); |
| 2008 | 1277 return; |
| 1278 } | |
| 1279 | |
| 0 | 1280 // Find replacement variable's type |
| 1281 const Form *form = _localNames[rep_var]; | |
| 1282 if (form == NULL) { | |
| 6850 | 1283 globalAD->syntax_err(_linenum, "Unknown replacement variable %s in format statement of %s.", |
| 1284 rep_var, _ident); | |
| 1285 return; | |
| 0 | 1286 } |
| 1287 OpClassForm *opc = form->is_opclass(); | |
| 1288 assert( opc, "replacement variable was not found in local names"); | |
| 1289 // Lookup the index position of the replacement variable | |
| 1290 int idx = operand_position_format(rep_var); | |
| 1291 if ( idx == -1 ) { | |
| 6850 | 1292 globalAD->syntax_err(_linenum, "Could not find replacement variable %s in format statement of %s.\n", |
| 1293 rep_var, _ident); | |
| 1294 assert(strcmp(opc->_ident, "label") == 0, "Unimplemented"); | |
| 1295 return; | |
| 0 | 1296 } |
| 1297 | |
| 1298 if (is_noninput_operand(idx)) { | |
| 1299 // This component isn't in the input array. Print out the static | |
| 1300 // name of the register. | |
| 1301 OperandForm* oper = form->is_operand(); | |
| 1302 if (oper != NULL && oper->is_bound_register()) { | |
| 1303 const RegDef* first = oper->get_RegClass()->find_first_elem(); | |
| 6850 | 1304 fprintf(fp, " st->print(\"%s\");\n", first->_regname); |
| 0 | 1305 } else { |
| 1306 globalAD->syntax_err(_linenum, "In %s can't find format for %s %s", _ident, opc->_ident, rep_var); | |
| 1307 } | |
| 1308 } else { | |
| 1309 // Output the format call for this operand | |
| 1310 fprintf(fp,"opnd_array(%d)->",idx); | |
| 1311 if (idx == 0) | |
| 1312 fprintf(fp,"int_format(ra, this, st); // %s\n", rep_var); | |
| 1313 else | |
| 1314 fprintf(fp,"ext_format(ra, this,idx%d, st); // %s\n", idx, rep_var ); | |
| 1315 } | |
| 1316 } | |
| 1317 | |
| 1318 // Seach through operands to determine parameters unique positions. | |
| 1319 void InstructForm::set_unique_opnds() { | |
| 1320 uint* uniq_idx = NULL; | |
| 10389 | 1321 uint nopnds = num_opnds(); |
| 0 | 1322 uint num_uniq = nopnds; |
| 10389 | 1323 uint i; |
|
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1324 _uniq_idx_length = 0; |
| 10389 | 1325 if (nopnds > 0) { |
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1326 // Allocate index array. Worst case we're mapping from each |
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1327 // component back to an index and any DEF always goes at 0 so the |
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1328 // length of the array has to be the number of components + 1. |
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1329 _uniq_idx_length = _components.count() + 1; |
| 10389 | 1330 uniq_idx = (uint*) malloc(sizeof(uint) * _uniq_idx_length); |
| 1331 for (i = 0; i < _uniq_idx_length; i++) { | |
| 0 | 1332 uniq_idx[i] = i; |
| 1333 } | |
| 1334 } | |
| 1335 // Do it only if there is a match rule and no expand rule. With an | |
| 1336 // expand rule it is done by creating new mach node in Expand() | |
| 1337 // method. | |
| 10389 | 1338 if (nopnds > 0 && _matrule != NULL && _exprule == NULL) { |
| 0 | 1339 const char *name; |
| 1340 uint count; | |
| 1341 bool has_dupl_use = false; | |
| 1342 | |
| 1343 _parameters.reset(); | |
| 10389 | 1344 while ((name = _parameters.iter()) != NULL) { |
| 0 | 1345 count = 0; |
| 10389 | 1346 uint position = 0; |
| 1347 uint uniq_position = 0; | |
| 0 | 1348 _components.reset(); |
| 1349 Component *comp = NULL; | |
| 10389 | 1350 if (sets_result()) { |
| 0 | 1351 comp = _components.iter(); |
| 1352 position++; | |
| 1353 } | |
| 1354 // The next code is copied from the method operand_position(). | |
| 1355 for (; (comp = _components.iter()) != NULL; ++position) { | |
| 1356 // When the first component is not a DEF, | |
| 1357 // leave space for the result operand! | |
| 10389 | 1358 if (position==0 && (!comp->isa(Component::DEF))) { |
| 0 | 1359 ++position; |
| 1360 } | |
| 10389 | 1361 if (strcmp(name, comp->_name) == 0) { |
| 1362 if (++count > 1) { | |
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1363 assert(position < _uniq_idx_length, "out of bounds"); |
| 0 | 1364 uniq_idx[position] = uniq_position; |
| 1365 has_dupl_use = true; | |
| 1366 } else { | |
| 1367 uniq_position = position; | |
| 1368 } | |
| 1369 } | |
| 10389 | 1370 if (comp->isa(Component::DEF) && comp->isa(Component::USE)) { |
| 0 | 1371 ++position; |
| 10389 | 1372 if (position != 1) |
| 0 | 1373 --position; // only use two slots for the 1st USE_DEF |
| 1374 } | |
| 1375 } | |
| 1376 } | |
| 10389 | 1377 if (has_dupl_use) { |
| 1378 for (i = 1; i < nopnds; i++) { | |
| 1379 if (i != uniq_idx[i]) { | |
| 0 | 1380 break; |
| 10389 | 1381 } |
| 1382 } | |
| 1383 uint j = i; | |
| 1384 for (; i < nopnds; i++) { | |
| 1385 if (i == uniq_idx[i]) { | |
| 0 | 1386 uniq_idx[i] = j++; |
| 10389 | 1387 } |
| 1388 } | |
| 0 | 1389 num_uniq = j; |
| 1390 } | |
| 1391 } | |
| 1392 _uniq_idx = uniq_idx; | |
| 1393 _num_uniq = num_uniq; | |
| 1394 } | |
| 1395 | |
| 605 | 1396 // Generate index values needed for determining the operand position |
| 0 | 1397 void InstructForm::index_temps(FILE *fp, FormDict &globals, const char *prefix, const char *receiver) { |
| 1398 uint idx = 0; // position of operand in match rule | |
| 1399 int cur_num_opnds = num_opnds(); | |
| 1400 | |
| 1401 // Compute the index into vector of operand pointers: | |
| 1402 // idx0=0 is used to indicate that info comes from this same node, not from input edge. | |
| 1403 // idx1 starts at oper_input_base() | |
| 1404 if ( cur_num_opnds >= 1 ) { | |
| 6850 | 1405 fprintf(fp," // Start at oper_input_base() and count operands\n"); |
| 1406 fprintf(fp," unsigned %sidx0 = %d;\n", prefix, oper_input_base(globals)); | |
| 1407 fprintf(fp," unsigned %sidx1 = %d;", prefix, oper_input_base(globals)); | |
| 1408 fprintf(fp," \t// %s\n", unique_opnd_ident(1)); | |
| 0 | 1409 |
| 1410 // Generate starting points for other unique operands if they exist | |
| 1411 for ( idx = 2; idx < num_unique_opnds(); ++idx ) { | |
| 1412 if( *receiver == 0 ) { | |
| 6850 | 1413 fprintf(fp," unsigned %sidx%d = %sidx%d + opnd_array(%d)->num_edges();", |
| 0 | 1414 prefix, idx, prefix, idx-1, idx-1 ); |
| 1415 } else { | |
| 6850 | 1416 fprintf(fp," unsigned %sidx%d = %sidx%d + %s_opnds[%d]->num_edges();", |
| 0 | 1417 prefix, idx, prefix, idx-1, receiver, idx-1 ); |
| 1418 } | |
| 6850 | 1419 fprintf(fp," \t// %s\n", unique_opnd_ident(idx)); |
| 0 | 1420 } |
| 1421 } | |
| 1422 if( *receiver != 0 ) { | |
| 1423 // This value is used by generate_peepreplace when copying a node. | |
| 1424 // Don't emit it in other cases since it can hide bugs with the | |
| 1425 // use invalid idx's. | |
| 6850 | 1426 fprintf(fp," unsigned %sidx%d = %sreq(); \n", prefix, idx, receiver); |
| 0 | 1427 } |
| 1428 | |
| 1429 } | |
| 1430 | |
| 1431 // --------------------------- | |
| 1432 bool InstructForm::verify() { | |
| 1433 // !!!!! !!!!! | |
| 1434 // Check that a "label" operand occurs last in the operand list, if present | |
| 1435 return true; | |
| 1436 } | |
| 1437 | |
| 1438 void InstructForm::dump() { | |
| 1439 output(stderr); | |
| 1440 } | |
| 1441 | |
| 1442 void InstructForm::output(FILE *fp) { | |
| 1443 fprintf(fp,"\nInstruction: %s\n", (_ident?_ident:"")); | |
| 1444 if (_matrule) _matrule->output(fp); | |
| 1445 if (_insencode) _insencode->output(fp); | |
| 2008 | 1446 if (_constant) _constant->output(fp); |
| 0 | 1447 if (_opcode) _opcode->output(fp); |
| 1448 if (_attribs) _attribs->output(fp); | |
| 1449 if (_predicate) _predicate->output(fp); | |
| 1450 if (_effects.Size()) { | |
| 1451 fprintf(fp,"Effects\n"); | |
| 1452 _effects.dump(); | |
| 1453 } | |
| 1454 if (_exprule) _exprule->output(fp); | |
| 1455 if (_rewrule) _rewrule->output(fp); | |
| 1456 if (_format) _format->output(fp); | |
| 1457 if (_peephole) _peephole->output(fp); | |
| 1458 } | |
| 1459 | |
| 1460 void MachNodeForm::dump() { | |
| 1461 output(stderr); | |
| 1462 } | |
| 1463 | |
| 1464 void MachNodeForm::output(FILE *fp) { | |
| 1465 fprintf(fp,"\nMachNode: %s\n", (_ident?_ident:"")); | |
| 1466 } | |
| 1467 | |
| 1468 //------------------------------build_predicate-------------------------------- | |
| 1469 // Build instruction predicates. If the user uses the same operand name | |
| 1470 // twice, we need to check that the operands are pointer-eequivalent in | |
| 1471 // the DFA during the labeling process. | |
| 1472 Predicate *InstructForm::build_predicate() { | |
| 1473 char buf[1024], *s=buf; | |
| 1474 Dict names(cmpstr,hashstr,Form::arena); // Map Names to counts | |
| 1475 | |
| 1476 MatchNode *mnode = | |
| 1477 strcmp(_matrule->_opType, "Set") ? _matrule : _matrule->_rChild; | |
| 1478 mnode->count_instr_names(names); | |
| 1479 | |
| 1480 uint first = 1; | |
| 1481 // Start with the predicate supplied in the .ad file. | |
| 1482 if( _predicate ) { | |
| 1483 if( first ) first=0; | |
| 1484 strcpy(s,"("); s += strlen(s); | |
| 1485 strcpy(s,_predicate->_pred); | |
| 1486 s += strlen(s); | |
| 1487 strcpy(s,")"); s += strlen(s); | |
| 1488 } | |
| 1489 for( DictI i(&names); i.test(); ++i ) { | |
| 1490 uintptr_t cnt = (uintptr_t)i._value; | |
| 1491 if( cnt > 1 ) { // Need a predicate at all? | |
| 1492 assert( cnt == 2, "Unimplemented" ); | |
| 1493 // Handle many pairs | |
| 1494 if( first ) first=0; | |
| 1495 else { // All tests must pass, so use '&&' | |
| 1496 strcpy(s," && "); | |
| 1497 s += strlen(s); | |
| 1498 } | |
| 1499 // Add predicate to working buffer | |
| 1500 sprintf(s,"/*%s*/(",(char*)i._key); | |
| 1501 s += strlen(s); | |
| 1502 mnode->build_instr_pred(s,(char*)i._key,0); | |
| 1503 s += strlen(s); | |
| 1504 strcpy(s," == "); s += strlen(s); | |
| 1505 mnode->build_instr_pred(s,(char*)i._key,1); | |
| 1506 s += strlen(s); | |
| 1507 strcpy(s,")"); s += strlen(s); | |
| 1508 } | |
| 1509 } | |
| 1510 if( s == buf ) s = NULL; | |
| 1511 else { | |
| 1512 assert( strlen(buf) < sizeof(buf), "String buffer overflow" ); | |
| 1513 s = strdup(buf); | |
| 1514 } | |
| 1515 return new Predicate(s); | |
| 1516 } | |
| 1517 | |
| 1518 //------------------------------EncodeForm------------------------------------- | |
| 1519 // Constructor | |
| 1520 EncodeForm::EncodeForm() | |
| 1521 : _encClass(cmpstr,hashstr, Form::arena) { | |
| 1522 } | |
| 1523 EncodeForm::~EncodeForm() { | |
| 1524 } | |
| 1525 | |
| 1526 // record a new register class | |
| 1527 EncClass *EncodeForm::add_EncClass(const char *className) { | |
| 1528 EncClass *encClass = new EncClass(className); | |
| 1529 _eclasses.addName(className); | |
| 1530 _encClass.Insert(className,encClass); | |
| 1531 return encClass; | |
| 1532 } | |
| 1533 | |
| 1534 // Lookup the function body for an encoding class | |
| 1535 EncClass *EncodeForm::encClass(const char *className) { | |
| 1536 assert( className != NULL, "Must provide a defined encoding name"); | |
| 1537 | |
| 1538 EncClass *encClass = (EncClass*)_encClass[className]; | |
| 1539 return encClass; | |
| 1540 } | |
| 1541 | |
| 1542 // Lookup the function body for an encoding class | |
| 1543 const char *EncodeForm::encClassBody(const char *className) { | |
| 1544 if( className == NULL ) return NULL; | |
| 1545 | |
| 1546 EncClass *encClass = (EncClass*)_encClass[className]; | |
| 1547 assert( encClass != NULL, "Encode Class is missing."); | |
| 1548 encClass->_code.reset(); | |
| 1549 const char *code = (const char*)encClass->_code.iter(); | |
| 1550 assert( code != NULL, "Found an empty encode class body."); | |
| 1551 | |
| 1552 return code; | |
| 1553 } | |
| 1554 | |
| 1555 // Lookup the function body for an encoding class | |
| 1556 const char *EncodeForm::encClassPrototype(const char *className) { | |
| 1557 assert( className != NULL, "Encode class name must be non NULL."); | |
| 1558 | |
| 1559 return className; | |
| 1560 } | |
| 1561 | |
| 1562 void EncodeForm::dump() { // Debug printer | |
| 1563 output(stderr); | |
| 1564 } | |
| 1565 | |
| 1566 void EncodeForm::output(FILE *fp) { // Write info to output files | |
| 1567 const char *name; | |
| 1568 fprintf(fp,"\n"); | |
| 1569 fprintf(fp,"-------------------- Dump EncodeForm --------------------\n"); | |
| 1570 for (_eclasses.reset(); (name = _eclasses.iter()) != NULL;) { | |
| 1571 ((EncClass*)_encClass[name])->output(fp); | |
| 1572 } | |
| 1573 fprintf(fp,"-------------------- end EncodeForm --------------------\n"); | |
| 1574 } | |
| 1575 //------------------------------EncClass--------------------------------------- | |
| 1576 EncClass::EncClass(const char *name) | |
| 1577 : _localNames(cmpstr,hashstr, Form::arena), _name(name) { | |
| 1578 } | |
| 1579 EncClass::~EncClass() { | |
| 1580 } | |
| 1581 | |
| 1582 // Add a parameter <type,name> pair | |
| 1583 void EncClass::add_parameter(const char *parameter_type, const char *parameter_name) { | |
| 1584 _parameter_type.addName( parameter_type ); | |
| 1585 _parameter_name.addName( parameter_name ); | |
| 1586 } | |
| 1587 | |
| 1588 // Verify operand types in parameter list | |
| 1589 bool EncClass::check_parameter_types(FormDict &globals) { | |
| 1590 // !!!!! | |
| 1591 return false; | |
| 1592 } | |
| 1593 | |
| 1594 // Add the decomposed "code" sections of an encoding's code-block | |
| 1595 void EncClass::add_code(const char *code) { | |
| 1596 _code.addName(code); | |
| 1597 } | |
| 1598 | |
| 1599 // Add the decomposed "replacement variables" of an encoding's code-block | |
| 1600 void EncClass::add_rep_var(char *replacement_var) { | |
| 1601 _code.addName(NameList::_signal); | |
| 1602 _rep_vars.addName(replacement_var); | |
| 1603 } | |
| 1604 | |
| 1605 // Lookup the function body for an encoding class | |
| 1606 int EncClass::rep_var_index(const char *rep_var) { | |
| 1607 uint position = 0; | |
| 1608 const char *name = NULL; | |
| 1609 | |
| 1610 _parameter_name.reset(); | |
| 1611 while ( (name = _parameter_name.iter()) != NULL ) { | |
| 1612 if ( strcmp(rep_var,name) == 0 ) return position; | |
| 1613 ++position; | |
| 1614 } | |
| 1615 | |
| 1616 return -1; | |
| 1617 } | |
| 1618 | |
| 1619 // Check after parsing | |
| 1620 bool EncClass::verify() { | |
| 1621 // 1!!!! | |
| 1622 // Check that each replacement variable, '$name' in architecture description | |
| 1623 // is actually a local variable for this encode class, or a reserved name | |
| 1624 // "primary, secondary, tertiary" | |
| 1625 return true; | |
| 1626 } | |
| 1627 | |
| 1628 void EncClass::dump() { | |
| 1629 output(stderr); | |
| 1630 } | |
| 1631 | |
| 1632 // Write info to output files | |
| 1633 void EncClass::output(FILE *fp) { | |
| 1634 fprintf(fp,"EncClass: %s", (_name ? _name : "")); | |
| 1635 | |
| 1636 // Output the parameter list | |
| 1637 _parameter_type.reset(); | |
| 1638 _parameter_name.reset(); | |
| 1639 const char *type = _parameter_type.iter(); | |
| 1640 const char *name = _parameter_name.iter(); | |
| 1641 fprintf(fp, " ( "); | |
| 1642 for ( ; (type != NULL) && (name != NULL); | |
| 1643 (type = _parameter_type.iter()), (name = _parameter_name.iter()) ) { | |
| 1644 fprintf(fp, " %s %s,", type, name); | |
| 1645 } | |
| 1646 fprintf(fp, " ) "); | |
| 1647 | |
| 1648 // Output the code block | |
| 1649 _code.reset(); | |
| 1650 _rep_vars.reset(); | |
| 1651 const char *code; | |
| 1652 while ( (code = _code.iter()) != NULL ) { | |
| 1653 if ( _code.is_signal(code) ) { | |
| 1654 // A replacement variable | |
| 1655 const char *rep_var = _rep_vars.iter(); | |
| 1656 fprintf(fp,"($%s)", rep_var); | |
| 1657 } else { | |
| 1658 // A section of code | |
| 1659 fprintf(fp,"%s", code); | |
| 1660 } | |
| 1661 } | |
| 1662 | |
| 1663 } | |
| 1664 | |
| 1665 //------------------------------Opcode----------------------------------------- | |
| 1666 Opcode::Opcode(char *primary, char *secondary, char *tertiary) | |
| 1667 : _primary(primary), _secondary(secondary), _tertiary(tertiary) { | |
| 1668 } | |
| 1669 | |
| 1670 Opcode::~Opcode() { | |
| 1671 } | |
| 1672 | |
| 1673 Opcode::opcode_type Opcode::as_opcode_type(const char *param) { | |
| 1674 if( strcmp(param,"primary") == 0 ) { | |
| 1675 return Opcode::PRIMARY; | |
| 1676 } | |
| 1677 else if( strcmp(param,"secondary") == 0 ) { | |
| 1678 return Opcode::SECONDARY; | |
| 1679 } | |
| 1680 else if( strcmp(param,"tertiary") == 0 ) { | |
| 1681 return Opcode::TERTIARY; | |
| 1682 } | |
| 1683 return Opcode::NOT_AN_OPCODE; | |
| 1684 } | |
| 1685 | |
|
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1686 bool Opcode::print_opcode(FILE *fp, Opcode::opcode_type desired_opcode) { |
| 0 | 1687 // Default values previously provided by MachNode::primary()... |
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1688 const char *description = NULL; |
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1689 const char *value = NULL; |
| 0 | 1690 // Check if user provided any opcode definitions |
| 1691 if( this != NULL ) { | |
| 1692 // Update 'value' if user provided a definition in the instruction | |
| 1693 switch (desired_opcode) { | |
| 1694 case PRIMARY: | |
| 1695 description = "primary()"; | |
| 1696 if( _primary != NULL) { value = _primary; } | |
| 1697 break; | |
| 1698 case SECONDARY: | |
| 1699 description = "secondary()"; | |
| 1700 if( _secondary != NULL ) { value = _secondary; } | |
| 1701 break; | |
| 1702 case TERTIARY: | |
| 1703 description = "tertiary()"; | |
| 1704 if( _tertiary != NULL ) { value = _tertiary; } | |
| 1705 break; | |
| 1706 default: | |
| 1707 assert( false, "ShouldNotReachHere();"); | |
| 1708 break; | |
| 1709 } | |
| 1710 } | |
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1711 if (value != NULL) { |
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1712 fprintf(fp, "(%s /*%s*/)", value, description); |
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1713 } |
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1714 return value != NULL; |
| 0 | 1715 } |
| 1716 | |
| 1717 void Opcode::dump() { | |
| 1718 output(stderr); | |
| 1719 } | |
| 1720 | |
| 1721 // Write info to output files | |
| 1722 void Opcode::output(FILE *fp) { | |
| 1723 if (_primary != NULL) fprintf(fp,"Primary opcode: %s\n", _primary); | |
| 1724 if (_secondary != NULL) fprintf(fp,"Secondary opcode: %s\n", _secondary); | |
| 1725 if (_tertiary != NULL) fprintf(fp,"Tertiary opcode: %s\n", _tertiary); | |
| 1726 } | |
| 1727 | |
| 1728 //------------------------------InsEncode-------------------------------------- | |
| 1729 InsEncode::InsEncode() { | |
| 1730 } | |
| 1731 InsEncode::~InsEncode() { | |
| 1732 } | |
| 1733 | |
| 1734 // Add "encode class name" and its parameters | |
| 1735 NameAndList *InsEncode::add_encode(char *encoding) { | |
| 1736 assert( encoding != NULL, "Must provide name for encoding"); | |
| 1737 | |
| 1738 // add_parameter(NameList::_signal); | |
| 1739 NameAndList *encode = new NameAndList(encoding); | |
| 1740 _encoding.addName((char*)encode); | |
| 1741 | |
| 1742 return encode; | |
| 1743 } | |
| 1744 | |
| 1745 // Access the list of encodings | |
| 1746 void InsEncode::reset() { | |
| 1747 _encoding.reset(); | |
| 1748 // _parameter.reset(); | |
| 1749 } | |
| 1750 const char* InsEncode::encode_class_iter() { | |
| 1751 NameAndList *encode_class = (NameAndList*)_encoding.iter(); | |
| 1752 return ( encode_class != NULL ? encode_class->name() : NULL ); | |
| 1753 } | |
| 1754 // Obtain parameter name from zero based index | |
| 1755 const char *InsEncode::rep_var_name(InstructForm &inst, uint param_no) { | |
| 1756 NameAndList *params = (NameAndList*)_encoding.current(); | |
| 1757 assert( params != NULL, "Internal Error"); | |
| 1758 const char *param = (*params)[param_no]; | |
| 1759 | |
| 1760 // Remove '$' if parser placed it there. | |
| 1761 return ( param != NULL && *param == '$') ? (param+1) : param; | |
| 1762 } | |
| 1763 | |
| 1764 void InsEncode::dump() { | |
| 1765 output(stderr); | |
| 1766 } | |
| 1767 | |
| 1768 // Write info to output files | |
| 1769 void InsEncode::output(FILE *fp) { | |
| 1770 NameAndList *encoding = NULL; | |
| 1771 const char *parameter = NULL; | |
| 1772 | |
| 1773 fprintf(fp,"InsEncode: "); | |
| 1774 _encoding.reset(); | |
| 1775 | |
| 1776 while ( (encoding = (NameAndList*)_encoding.iter()) != 0 ) { | |
| 1777 // Output the encoding being used | |
| 1778 fprintf(fp,"%s(", encoding->name() ); | |
| 1779 | |
| 1780 // Output its parameter list, if any | |
| 1781 bool first_param = true; | |
| 1782 encoding->reset(); | |
| 1783 while ( (parameter = encoding->iter()) != 0 ) { | |
| 1784 // Output the ',' between parameters | |
| 1785 if ( ! first_param ) fprintf(fp,", "); | |
| 1786 first_param = false; | |
| 1787 // Output the parameter | |
| 1788 fprintf(fp,"%s", parameter); | |
| 1789 } // done with parameters | |
| 1790 fprintf(fp,") "); | |
| 1791 } // done with encodings | |
| 1792 | |
| 1793 fprintf(fp,"\n"); | |
| 1794 } | |
| 1795 | |
| 1796 //------------------------------Effect----------------------------------------- | |
| 1797 static int effect_lookup(const char *name) { | |
| 1798 if(!strcmp(name, "USE")) return Component::USE; | |
| 1799 if(!strcmp(name, "DEF")) return Component::DEF; | |
| 1800 if(!strcmp(name, "USE_DEF")) return Component::USE_DEF; | |
| 1801 if(!strcmp(name, "KILL")) return Component::KILL; | |
| 1802 if(!strcmp(name, "USE_KILL")) return Component::USE_KILL; | |
| 1803 if(!strcmp(name, "TEMP")) return Component::TEMP; | |
| 1804 if(!strcmp(name, "INVALID")) return Component::INVALID; | |
|
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|
1805 if(!strcmp(name, "CALL")) return Component::CALL; |
| 0 | 1806 assert( false,"Invalid effect name specified\n"); |
| 1807 return Component::INVALID; | |
| 1808 } | |
| 1809 | |
| 6850 | 1810 const char *Component::getUsedefName() { |
| 1811 switch (_usedef) { | |
| 1812 case Component::INVALID: return "INVALID"; break; | |
| 1813 case Component::USE: return "USE"; break; | |
| 1814 case Component::USE_DEF: return "USE_DEF"; break; | |
| 1815 case Component::USE_KILL: return "USE_KILL"; break; | |
| 1816 case Component::KILL: return "KILL"; break; | |
| 1817 case Component::TEMP: return "TEMP"; break; | |
| 1818 case Component::DEF: return "DEF"; break; | |
| 1819 case Component::CALL: return "CALL"; break; | |
| 1820 default: assert(false, "unknown effect"); | |
| 1821 } | |
| 1822 return "Undefined Use/Def info"; | |
| 1823 } | |
| 1824 | |
| 0 | 1825 Effect::Effect(const char *name) : _name(name), _use_def(effect_lookup(name)) { |
| 1826 _ftype = Form::EFF; | |
| 1827 } | |
| 6850 | 1828 |
| 0 | 1829 Effect::~Effect() { |
| 1830 } | |
| 1831 | |
| 1832 // Dynamic type check | |
| 1833 Effect *Effect::is_effect() const { | |
| 1834 return (Effect*)this; | |
| 1835 } | |
| 1836 | |
| 1837 | |
| 1838 // True if this component is equal to the parameter. | |
| 1839 bool Effect::is(int use_def_kill_enum) const { | |
| 1840 return (_use_def == use_def_kill_enum ? true : false); | |
| 1841 } | |
| 1842 // True if this component is used/def'd/kill'd as the parameter suggests. | |
| 1843 bool Effect::isa(int use_def_kill_enum) const { | |
| 1844 return (_use_def & use_def_kill_enum) == use_def_kill_enum; | |
| 1845 } | |
| 1846 | |
| 1847 void Effect::dump() { | |
| 1848 output(stderr); | |
| 1849 } | |
| 1850 | |
| 1851 void Effect::output(FILE *fp) { // Write info to output files | |
| 1852 fprintf(fp,"Effect: %s\n", (_name?_name:"")); | |
| 1853 } | |
| 1854 | |
| 1855 //------------------------------ExpandRule------------------------------------- | |
| 1856 ExpandRule::ExpandRule() : _expand_instrs(), | |
| 1857 _newopconst(cmpstr, hashstr, Form::arena) { | |
| 1858 _ftype = Form::EXP; | |
| 1859 } | |
| 1860 | |
| 1861 ExpandRule::~ExpandRule() { // Destructor | |
| 1862 } | |
| 1863 | |
| 1864 void ExpandRule::add_instruction(NameAndList *instruction_name_and_operand_list) { | |
| 1865 _expand_instrs.addName((char*)instruction_name_and_operand_list); | |
| 1866 } | |
| 1867 | |
| 1868 void ExpandRule::reset_instructions() { | |
| 1869 _expand_instrs.reset(); | |
| 1870 } | |
| 1871 | |
| 1872 NameAndList* ExpandRule::iter_instructions() { | |
| 1873 return (NameAndList*)_expand_instrs.iter(); | |
| 1874 } | |
| 1875 | |
| 1876 | |
| 1877 void ExpandRule::dump() { | |
| 1878 output(stderr); | |
| 1879 } | |
| 1880 | |
| 1881 void ExpandRule::output(FILE *fp) { // Write info to output files | |
| 1882 NameAndList *expand_instr = NULL; | |
| 1883 const char *opid = NULL; | |
| 1884 | |
| 1885 fprintf(fp,"\nExpand Rule:\n"); | |
| 1886 | |
| 1887 // Iterate over the instructions 'node' expands into | |
| 1888 for(reset_instructions(); (expand_instr = iter_instructions()) != NULL; ) { | |
| 1889 fprintf(fp,"%s(", expand_instr->name()); | |
| 1890 | |
| 1891 // iterate over the operand list | |
| 1892 for( expand_instr->reset(); (opid = expand_instr->iter()) != NULL; ) { | |
| 1893 fprintf(fp,"%s ", opid); | |
| 1894 } | |
| 1895 fprintf(fp,");\n"); | |
| 1896 } | |
| 1897 } | |
| 1898 | |
| 1899 //------------------------------RewriteRule------------------------------------ | |
| 1900 RewriteRule::RewriteRule(char* params, char* block) | |
| 1901 : _tempParams(params), _tempBlock(block) { }; // Constructor | |
| 1902 RewriteRule::~RewriteRule() { // Destructor | |
| 1903 } | |
| 1904 | |
| 1905 void RewriteRule::dump() { | |
| 1906 output(stderr); | |
| 1907 } | |
| 1908 | |
| 1909 void RewriteRule::output(FILE *fp) { // Write info to output files | |
| 1910 fprintf(fp,"\nRewrite Rule:\n%s\n%s\n", | |
| 1911 (_tempParams?_tempParams:""), | |
| 1912 (_tempBlock?_tempBlock:"")); | |
| 1913 } | |
| 1914 | |
| 1915 | |
| 1916 //==============================MachNodes====================================== | |
| 1917 //------------------------------MachNodeForm----------------------------------- | |
| 1918 MachNodeForm::MachNodeForm(char *id) | |
| 1919 : _ident(id) { | |
| 1920 } | |
| 1921 | |
| 1922 MachNodeForm::~MachNodeForm() { | |
| 1923 } | |
| 1924 | |
| 1925 MachNodeForm *MachNodeForm::is_machnode() const { | |
| 1926 return (MachNodeForm*)this; | |
| 1927 } | |
| 1928 | |
| 1929 //==============================Operand Classes================================ | |
| 1930 //------------------------------OpClassForm------------------------------------ | |
| 1931 OpClassForm::OpClassForm(const char* id) : _ident(id) { | |
| 1932 _ftype = Form::OPCLASS; | |
| 1933 } | |
| 1934 | |
| 1935 OpClassForm::~OpClassForm() { | |
| 1936 } | |
| 1937 | |
| 1938 bool OpClassForm::ideal_only() const { return 0; } | |
| 1939 | |
| 1940 OpClassForm *OpClassForm::is_opclass() const { | |
| 1941 return (OpClassForm*)this; | |
| 1942 } | |
| 1943 | |
| 1944 Form::InterfaceType OpClassForm::interface_type(FormDict &globals) const { | |
| 1945 if( _oplst.count() == 0 ) return Form::no_interface; | |
| 1946 | |
| 1947 // Check that my operands have the same interface type | |
| 1948 Form::InterfaceType interface; | |
| 1949 bool first = true; | |
| 1950 NameList &op_list = (NameList &)_oplst; | |
| 1951 op_list.reset(); | |
| 1952 const char *op_name; | |
| 1953 while( (op_name = op_list.iter()) != NULL ) { | |
| 1954 const Form *form = globals[op_name]; | |
| 1955 OperandForm *operand = form->is_operand(); | |
| 1956 assert( operand, "Entry in operand class that is not an operand"); | |
| 1957 if( first ) { | |
| 1958 first = false; | |
| 1959 interface = operand->interface_type(globals); | |
| 1960 } else { | |
| 1961 interface = (interface == operand->interface_type(globals) ? interface : Form::no_interface); | |
| 1962 } | |
| 1963 } | |
| 1964 return interface; | |
| 1965 } | |
| 1966 | |
| 1967 bool OpClassForm::stack_slots_only(FormDict &globals) const { | |
| 1968 if( _oplst.count() == 0 ) return false; // how? | |
| 1969 | |
| 1970 NameList &op_list = (NameList &)_oplst; | |
| 1971 op_list.reset(); | |
| 1972 const char *op_name; | |
| 1973 while( (op_name = op_list.iter()) != NULL ) { | |
| 1974 const Form *form = globals[op_name]; | |
| 1975 OperandForm *operand = form->is_operand(); | |
| 1976 assert( operand, "Entry in operand class that is not an operand"); | |
| 1977 if( !operand->stack_slots_only(globals) ) return false; | |
| 1978 } | |
| 1979 return true; | |
| 1980 } | |
| 1981 | |
| 1982 | |
| 1983 void OpClassForm::dump() { | |
| 1984 output(stderr); | |
| 1985 } | |
| 1986 | |
| 1987 void OpClassForm::output(FILE *fp) { | |
| 1988 const char *name; | |
| 1989 fprintf(fp,"\nOperand Class: %s\n", (_ident?_ident:"")); | |
| 1990 fprintf(fp,"\nCount = %d\n", _oplst.count()); | |
| 1991 for(_oplst.reset(); (name = _oplst.iter()) != NULL;) { | |
| 1992 fprintf(fp,"%s, ",name); | |
| 1993 } | |
| 1994 fprintf(fp,"\n"); | |
| 1995 } | |
| 1996 | |
| 1997 | |
| 1998 //==============================Operands======================================= | |
| 1999 //------------------------------OperandForm------------------------------------ | |
| 2000 OperandForm::OperandForm(const char* id) | |
| 2001 : OpClassForm(id), _ideal_only(false), | |
| 2002 _localNames(cmpstr, hashstr, Form::arena) { | |
| 2003 _ftype = Form::OPER; | |
| 2004 | |
| 2005 _matrule = NULL; | |
| 2006 _interface = NULL; | |
| 2007 _attribs = NULL; | |
| 2008 _predicate = NULL; | |
| 2009 _constraint= NULL; | |
| 2010 _construct = NULL; | |
| 2011 _format = NULL; | |
| 2012 } | |
| 2013 OperandForm::OperandForm(const char* id, bool ideal_only) | |
| 2014 : OpClassForm(id), _ideal_only(ideal_only), | |
| 2015 _localNames(cmpstr, hashstr, Form::arena) { | |
| 2016 _ftype = Form::OPER; | |
| 2017 | |
| 2018 _matrule = NULL; | |
| 2019 _interface = NULL; | |
| 2020 _attribs = NULL; | |
| 2021 _predicate = NULL; | |
| 2022 _constraint= NULL; | |
| 2023 _construct = NULL; | |
| 2024 _format = NULL; | |
| 2025 } | |
| 2026 OperandForm::~OperandForm() { | |
| 2027 } | |
| 2028 | |
| 2029 | |
| 2030 OperandForm *OperandForm::is_operand() const { | |
| 2031 return (OperandForm*)this; | |
| 2032 } | |
| 2033 | |
| 2034 bool OperandForm::ideal_only() const { | |
| 2035 return _ideal_only; | |
| 2036 } | |
| 2037 | |
| 2038 Form::InterfaceType OperandForm::interface_type(FormDict &globals) const { | |
| 2039 if( _interface == NULL ) return Form::no_interface; | |
| 2040 | |
| 2041 return _interface->interface_type(globals); | |
| 2042 } | |
| 2043 | |
| 2044 | |
| 2045 bool OperandForm::stack_slots_only(FormDict &globals) const { | |
| 2046 if( _constraint == NULL ) return false; | |
| 2047 return _constraint->stack_slots_only(); | |
| 2048 } | |
| 2049 | |
| 2050 | |
| 2051 // Access op_cost attribute or return NULL. | |
| 2052 const char* OperandForm::cost() { | |
| 2053 for (Attribute* cur = _attribs; cur != NULL; cur = (Attribute*)cur->_next) { | |
| 2054 if( strcmp(cur->_ident,AttributeForm::_op_cost) == 0 ) { | |
| 2055 return cur->_val; | |
| 2056 } | |
| 2057 } | |
| 2058 return NULL; | |
| 2059 } | |
| 2060 | |
| 2061 // Return the number of leaves below this complex operand | |
| 2062 uint OperandForm::num_leaves() const { | |
| 2063 if ( ! _matrule) return 0; | |
| 2064 | |
| 2065 int num_leaves = _matrule->_numleaves; | |
| 2066 return num_leaves; | |
| 2067 } | |
| 2068 | |
| 2069 // Return the number of constants contained within this complex operand | |
| 2070 uint OperandForm::num_consts(FormDict &globals) const { | |
| 2071 if ( ! _matrule) return 0; | |
| 2072 | |
| 2073 // This is a recursive invocation on all operands in the matchrule | |
| 2074 return _matrule->num_consts(globals); | |
| 2075 } | |
| 2076 | |
| 2077 // Return the number of constants in match rule with specified type | |
| 2078 uint OperandForm::num_consts(FormDict &globals, Form::DataType type) const { | |
| 2079 if ( ! _matrule) return 0; | |
| 2080 | |
| 2081 // This is a recursive invocation on all operands in the matchrule | |
| 2082 return _matrule->num_consts(globals, type); | |
| 2083 } | |
| 2084 | |
| 2085 // Return the number of pointer constants contained within this complex operand | |
| 2086 uint OperandForm::num_const_ptrs(FormDict &globals) const { | |
| 2087 if ( ! _matrule) return 0; | |
| 2088 | |
| 2089 // This is a recursive invocation on all operands in the matchrule | |
| 2090 return _matrule->num_const_ptrs(globals); | |
| 2091 } | |
| 2092 | |
| 2093 uint OperandForm::num_edges(FormDict &globals) const { | |
| 2094 uint edges = 0; | |
| 2095 uint leaves = num_leaves(); | |
| 2096 uint consts = num_consts(globals); | |
| 2097 | |
| 2098 // If we are matching a constant directly, there are no leaves. | |
| 2099 edges = ( leaves > consts ) ? leaves - consts : 0; | |
| 2100 | |
| 2101 // !!!!! | |
| 2102 // Special case operands that do not have a corresponding ideal node. | |
| 2103 if( (edges == 0) && (consts == 0) ) { | |
| 2104 if( constrained_reg_class() != NULL ) { | |
| 2105 edges = 1; | |
| 2106 } else { | |
| 2107 if( _matrule | |
| 2108 && (_matrule->_lChild == NULL) && (_matrule->_rChild == NULL) ) { | |
| 2109 const Form *form = globals[_matrule->_opType]; | |
| 2110 OperandForm *oper = form ? form->is_operand() : NULL; | |
| 2111 if( oper ) { | |
| 2112 return oper->num_edges(globals); | |
| 2113 } | |
| 2114 } | |
| 2115 } | |
| 2116 } | |
| 2117 | |
| 2118 return edges; | |
| 2119 } | |
| 2120 | |
| 2121 | |
| 2122 // Check if this operand is usable for cisc-spilling | |
| 2123 bool OperandForm::is_cisc_reg(FormDict &globals) const { | |
| 2124 const char *ideal = ideal_type(globals); | |
| 2125 bool is_cisc_reg = (ideal && (ideal_to_Reg_type(ideal) != none)); | |
| 2126 return is_cisc_reg; | |
| 2127 } | |
| 2128 | |
| 2129 bool OpClassForm::is_cisc_mem(FormDict &globals) const { | |
| 2130 Form::InterfaceType my_interface = interface_type(globals); | |
| 2131 return (my_interface == memory_interface); | |
| 2132 } | |
| 2133 | |
| 2134 | |
| 2135 // node matches ideal 'Bool' | |
| 2136 bool OperandForm::is_ideal_bool() const { | |
| 2137 if( _matrule == NULL ) return false; | |
| 2138 | |
| 2139 return _matrule->is_ideal_bool(); | |
| 2140 } | |
| 2141 | |
| 2142 // Require user's name for an sRegX to be stackSlotX | |
| 2143 Form::DataType OperandForm::is_user_name_for_sReg() const { | |
| 2144 DataType data_type = none; | |
| 2145 if( _ident != NULL ) { | |
| 2146 if( strcmp(_ident,"stackSlotI") == 0 ) data_type = Form::idealI; | |
| 2147 else if( strcmp(_ident,"stackSlotP") == 0 ) data_type = Form::idealP; | |
| 2148 else if( strcmp(_ident,"stackSlotD") == 0 ) data_type = Form::idealD; | |
| 2149 else if( strcmp(_ident,"stackSlotF") == 0 ) data_type = Form::idealF; | |
| 2150 else if( strcmp(_ident,"stackSlotL") == 0 ) data_type = Form::idealL; | |
| 2151 } | |
| 2152 assert((data_type == none) || (_matrule == NULL), "No match-rule for stackSlotX"); | |
| 2153 | |
| 2154 return data_type; | |
| 2155 } | |
| 2156 | |
| 2157 | |
| 2158 // Return ideal type, if there is a single ideal type for this operand | |
| 2159 const char *OperandForm::ideal_type(FormDict &globals, RegisterForm *registers) const { | |
| 2160 const char *type = NULL; | |
| 2161 if (ideal_only()) type = _ident; | |
| 2162 else if( _matrule == NULL ) { | |
| 2163 // Check for condition code register | |
| 2164 const char *rc_name = constrained_reg_class(); | |
| 2165 // !!!!! | |
| 2166 if (rc_name == NULL) return NULL; | |
| 2167 // !!!!! !!!!! | |
| 2168 // Check constraints on result's register class | |
| 2169 if( registers ) { | |
| 2170 RegClass *reg_class = registers->getRegClass(rc_name); | |
| 2171 assert( reg_class != NULL, "Register class is not defined"); | |
| 2172 | |
| 2173 // Check for ideal type of entries in register class, all are the same type | |
| 2174 reg_class->reset(); | |
| 2175 RegDef *reg_def = reg_class->RegDef_iter(); | |
| 2176 assert( reg_def != NULL, "No entries in register class"); | |
| 2177 assert( reg_def->_idealtype != NULL, "Did not define ideal type for register"); | |
| 2178 // Return substring that names the register's ideal type | |
| 2179 type = reg_def->_idealtype + 3; | |
| 2180 assert( *(reg_def->_idealtype + 0) == 'O', "Expect Op_ prefix"); | |
| 2181 assert( *(reg_def->_idealtype + 1) == 'p', "Expect Op_ prefix"); | |
| 2182 assert( *(reg_def->_idealtype + 2) == '_', "Expect Op_ prefix"); | |
| 2183 } | |
| 2184 } | |
| 2185 else if( _matrule->_lChild == NULL && _matrule->_rChild == NULL ) { | |
| 2186 // This operand matches a single type, at the top level. | |
| 2187 // Check for ideal type | |
| 2188 type = _matrule->_opType; | |
| 2189 if( strcmp(type,"Bool") == 0 ) | |
| 2190 return "Bool"; | |
| 2191 // transitive lookup | |
| 2192 const Form *frm = globals[type]; | |
| 2193 OperandForm *op = frm->is_operand(); | |
| 2194 type = op->ideal_type(globals, registers); | |
| 2195 } | |
| 2196 return type; | |
| 2197 } | |
| 2198 | |
| 2199 | |
| 2200 // If there is a single ideal type for this interface field, return it. | |
| 2201 const char *OperandForm::interface_ideal_type(FormDict &globals, | |
| 2202 const char *field) const { | |
| 2203 const char *ideal_type = NULL; | |
| 2204 const char *value = NULL; | |
| 2205 | |
| 2206 // Check if "field" is valid for this operand's interface | |
| 2207 if ( ! is_interface_field(field, value) ) return ideal_type; | |
| 2208 | |
| 2209 // !!!!! !!!!! !!!!! | |
| 2210 // If a valid field has a constant value, identify "ConI" or "ConP" or ... | |
| 2211 | |
| 2212 // Else, lookup type of field's replacement variable | |
| 2213 | |
| 2214 return ideal_type; | |
| 2215 } | |
| 2216 | |
| 2217 | |
| 2218 RegClass* OperandForm::get_RegClass() const { | |
| 2219 if (_interface && !_interface->is_RegInterface()) return NULL; | |
| 2220 return globalAD->get_registers()->getRegClass(constrained_reg_class()); | |
| 2221 } | |
| 2222 | |
| 2223 | |
| 2224 bool OperandForm::is_bound_register() const { | |
| 10389 | 2225 RegClass* reg_class = get_RegClass(); |
| 2226 if (reg_class == NULL) { | |
| 2227 return false; | |
| 2228 } | |
| 2229 | |
| 2230 const char* name = ideal_type(globalAD->globalNames()); | |
| 2231 if (name == NULL) { | |
| 2232 return false; | |
| 2233 } | |
| 2234 | |
| 2235 uint size = 0; | |
| 2236 if (strcmp(name, "RegFlags") == 0) size = 1; | |
| 2237 if (strcmp(name, "RegI") == 0) size = 1; | |
| 2238 if (strcmp(name, "RegF") == 0) size = 1; | |
| 2239 if (strcmp(name, "RegD") == 0) size = 2; | |
| 2240 if (strcmp(name, "RegL") == 0) size = 2; | |
| 2241 if (strcmp(name, "RegN") == 0) size = 1; | |
| 2242 if (strcmp(name, "RegP") == 0) size = globalAD->get_preproc_def("_LP64") ? 2 : 1; | |
| 2243 if (size == 0) { | |
| 2244 return false; | |
| 2245 } | |
| 0 | 2246 return size == reg_class->size(); |
| 2247 } | |
| 2248 | |
| 2249 | |
| 2250 // Check if this is a valid field for this operand, | |
| 2251 // Return 'true' if valid, and set the value to the string the user provided. | |
| 2252 bool OperandForm::is_interface_field(const char *field, | |
| 2253 const char * &value) const { | |
| 2254 return false; | |
| 2255 } | |
| 2256 | |
| 2257 | |
| 2258 // Return register class name if a constraint specifies the register class. | |
| 2259 const char *OperandForm::constrained_reg_class() const { | |
| 2260 const char *reg_class = NULL; | |
| 2261 if ( _constraint ) { | |
| 2262 // !!!!! | |
| 2263 Constraint *constraint = _constraint; | |
| 2264 if ( strcmp(_constraint->_func,"ALLOC_IN_RC") == 0 ) { | |
| 2265 reg_class = _constraint->_arg; | |
| 2266 } | |
| 2267 } | |
| 2268 | |
| 2269 return reg_class; | |
| 2270 } | |
| 2271 | |
| 2272 | |
| 2273 // Return the register class associated with 'leaf'. | |
| 2274 const char *OperandForm::in_reg_class(uint leaf, FormDict &globals) { | |
| 2275 const char *reg_class = NULL; // "RegMask::Empty"; | |
| 2276 | |
| 2277 if((_matrule == NULL) || (_matrule->is_chain_rule(globals))) { | |
| 2278 reg_class = constrained_reg_class(); | |
| 2279 return reg_class; | |
| 2280 } | |
| 2281 const char *result = NULL; | |
| 2282 const char *name = NULL; | |
| 2283 const char *type = NULL; | |
| 2284 // iterate through all base operands | |
| 2285 // until we reach the register that corresponds to "leaf" | |
| 2286 // This function is not looking for an ideal type. It needs the first | |
| 2287 // level user type associated with the leaf. | |
| 2288 for(uint idx = 0;_matrule->base_operand(idx,globals,result,name,type);++idx) { | |
| 2289 const Form *form = (_localNames[name] ? _localNames[name] : globals[result]); | |
| 2290 OperandForm *oper = form ? form->is_operand() : NULL; | |
| 2291 if( oper ) { | |
| 2292 reg_class = oper->constrained_reg_class(); | |
| 2293 if( reg_class ) { | |
| 2294 reg_class = reg_class; | |
| 2295 } else { | |
| 2296 // ShouldNotReachHere(); | |
| 2297 } | |
| 2298 } else { | |
| 2299 // ShouldNotReachHere(); | |
| 2300 } | |
| 2301 | |
| 2302 // Increment our target leaf position if current leaf is not a candidate. | |
| 2303 if( reg_class == NULL) ++leaf; | |
| 2304 // Exit the loop with the value of reg_class when at the correct index | |
| 2305 if( idx == leaf ) break; | |
| 2306 // May iterate through all base operands if reg_class for 'leaf' is NULL | |
| 2307 } | |
| 2308 return reg_class; | |
| 2309 } | |
| 2310 | |
| 2311 | |
| 2312 // Recursive call to construct list of top-level operands. | |
| 2313 // Implementation does not modify state of internal structures | |
| 2314 void OperandForm::build_components() { | |
| 2315 if (_matrule) _matrule->append_components(_localNames, _components); | |
| 2316 | |
| 2317 // Add parameters that "do not appear in match rule". | |
| 2318 const char *name; | |
| 2319 for (_parameters.reset(); (name = _parameters.iter()) != NULL;) { | |
| 2320 OperandForm *opForm = (OperandForm*)_localNames[name]; | |
| 2321 | |
| 2322 if ( _components.operand_position(name) == -1 ) { | |
| 2323 _components.insert(name, opForm->_ident, Component::INVALID, false); | |
| 2324 } | |
| 2325 } | |
| 2326 | |
| 2327 return; | |
| 2328 } | |
| 2329 | |
| 2330 int OperandForm::operand_position(const char *name, int usedef) { | |
| 6850 | 2331 return _components.operand_position(name, usedef, this); |
| 0 | 2332 } |
| 2333 | |
| 2334 | |
| 2335 // Return zero-based position in component list, only counting constants; | |
| 2336 // Return -1 if not in list. | |
| 2337 int OperandForm::constant_position(FormDict &globals, const Component *last) { | |
| 605 | 2338 // Iterate through components and count constants preceding 'constant' |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
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changeset
|
2339 int position = 0; |
| 0 | 2340 Component *comp; |
| 2341 _components.reset(); | |
| 2342 while( (comp = _components.iter()) != NULL && (comp != last) ) { | |
| 2343 // Special case for operands that take a single user-defined operand | |
| 2344 // Skip the initial definition in the component list. | |
| 2345 if( strcmp(comp->_name,this->_ident) == 0 ) continue; | |
| 2346 | |
| 2347 const char *type = comp->_type; | |
| 2348 // Lookup operand form for replacement variable's type | |
| 2349 const Form *form = globals[type]; | |
| 2350 assert( form != NULL, "Component's type not found"); | |
| 2351 OperandForm *oper = form ? form->is_operand() : NULL; | |
| 2352 if( oper ) { | |
| 2353 if( oper->_matrule->is_base_constant(globals) != Form::none ) { | |
| 2354 ++position; | |
| 2355 } | |
| 2356 } | |
| 2357 } | |
| 2358 | |
| 2359 // Check for being passed a component that was not in the list | |
| 2360 if( comp != last ) position = -1; | |
| 2361 | |
| 2362 return position; | |
| 2363 } | |
| 2364 // Provide position of constant by "name" | |
| 2365 int OperandForm::constant_position(FormDict &globals, const char *name) { | |
| 2366 const Component *comp = _components.search(name); | |
| 2367 int idx = constant_position( globals, comp ); | |
| 2368 | |
| 2369 return idx; | |
| 2370 } | |
| 2371 | |
| 2372 | |
| 2373 // Return zero-based position in component list, only counting constants; | |
| 2374 // Return -1 if not in list. | |
| 2375 int OperandForm::register_position(FormDict &globals, const char *reg_name) { | |
| 605 | 2376 // Iterate through components and count registers preceding 'last' |
| 0 | 2377 uint position = 0; |
| 2378 Component *comp; | |
| 2379 _components.reset(); | |
| 2380 while( (comp = _components.iter()) != NULL | |
| 2381 && (strcmp(comp->_name,reg_name) != 0) ) { | |
| 2382 // Special case for operands that take a single user-defined operand | |
| 2383 // Skip the initial definition in the component list. | |
| 2384 if( strcmp(comp->_name,this->_ident) == 0 ) continue; | |
| 2385 | |
| 2386 const char *type = comp->_type; | |
| 2387 // Lookup operand form for component's type | |
| 2388 const Form *form = globals[type]; | |
| 2389 assert( form != NULL, "Component's type not found"); | |
| 2390 OperandForm *oper = form ? form->is_operand() : NULL; | |
| 2391 if( oper ) { | |
| 2392 if( oper->_matrule->is_base_register(globals) ) { | |
| 2393 ++position; | |
| 2394 } | |
| 2395 } | |
| 2396 } | |
| 2397 | |
| 2398 return position; | |
| 2399 } | |
| 2400 | |
| 2401 | |
| 2402 const char *OperandForm::reduce_result() const { | |
| 2403 return _ident; | |
| 2404 } | |
| 2405 // Return the name of the operand on the right hand side of the binary match | |
| 2406 // Return NULL if there is no right hand side | |
| 2407 const char *OperandForm::reduce_right(FormDict &globals) const { | |
| 2408 return ( _matrule ? _matrule->reduce_right(globals) : NULL ); | |
| 2409 } | |
| 2410 | |
| 2411 // Similar for left | |
| 2412 const char *OperandForm::reduce_left(FormDict &globals) const { | |
| 2413 return ( _matrule ? _matrule->reduce_left(globals) : NULL ); | |
| 2414 } | |
| 2415 | |
| 2416 | |
| 2417 // --------------------------- FILE *output_routines | |
| 2418 // | |
| 2419 // Output code for disp_is_oop, if true. | |
| 2420 void OperandForm::disp_is_oop(FILE *fp, FormDict &globals) { | |
| 2421 // Check it is a memory interface with a non-user-constant disp field | |
| 2422 if ( this->_interface == NULL ) return; | |
| 2423 MemInterface *mem_interface = this->_interface->is_MemInterface(); | |
| 2424 if ( mem_interface == NULL ) return; | |
| 2425 const char *disp = mem_interface->_disp; | |
| 2426 if ( *disp != '$' ) return; | |
| 2427 | |
| 2428 // Lookup replacement variable in operand's component list | |
| 2429 const char *rep_var = disp + 1; | |
| 2430 const Component *comp = this->_components.search(rep_var); | |
| 2431 assert( comp != NULL, "Replacement variable not found in components"); | |
| 2432 // Lookup operand form for replacement variable's type | |
| 2433 const char *type = comp->_type; | |
| 2434 Form *form = (Form*)globals[type]; | |
| 2435 assert( form != NULL, "Replacement variable's type not found"); | |
| 2436 OperandForm *op = form->is_operand(); | |
| 2437 assert( op, "Memory Interface 'disp' can only emit an operand form"); | |
| 2438 // Check if this is a ConP, which may require relocation | |
| 2439 if ( op->is_base_constant(globals) == Form::idealP ) { | |
| 2440 // Find the constant's index: _c0, _c1, _c2, ... , _cN | |
| 2441 uint idx = op->constant_position( globals, rep_var); | |
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2442 fprintf(fp," virtual relocInfo::relocType disp_reloc() const {"); |
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2443 fprintf(fp, " return _c%d->reloc();", idx); |
| 0 | 2444 fprintf(fp, " }\n"); |
| 2445 } | |
| 2446 } | |
| 2447 | |
| 2448 // Generate code for internal and external format methods | |
| 2449 // | |
| 2450 // internal access to reg# node->_idx | |
| 2451 // access to subsumed constant _c0, _c1, | |
| 2452 void OperandForm::int_format(FILE *fp, FormDict &globals, uint index) { | |
| 2453 Form::DataType dtype; | |
| 2454 if (_matrule && (_matrule->is_base_register(globals) || | |
| 2455 strcmp(ideal_type(globalAD->globalNames()), "RegFlags") == 0)) { | |
| 2456 // !!!!! !!!!! | |
| 6850 | 2457 fprintf(fp," { char reg_str[128];\n"); |
| 2458 fprintf(fp," ra->dump_register(node,reg_str);\n"); | |
| 2459 fprintf(fp," st->print(\"%cs\",reg_str);\n",'%'); | |
| 2460 fprintf(fp," }\n"); | |
| 0 | 2461 } else if (_matrule && (dtype = _matrule->is_base_constant(globals)) != Form::none) { |
| 2462 format_constant( fp, index, dtype ); | |
| 2463 } else if (ideal_to_sReg_type(_ident) != Form::none) { | |
| 2464 // Special format for Stack Slot Register | |
| 6850 | 2465 fprintf(fp," { char reg_str[128];\n"); |
| 2466 fprintf(fp," ra->dump_register(node,reg_str);\n"); | |
| 2467 fprintf(fp," st->print(\"%cs\",reg_str);\n",'%'); | |
| 2468 fprintf(fp," }\n"); | |
| 0 | 2469 } else { |
| 6850 | 2470 fprintf(fp," st->print(\"No format defined for %s\n\");\n", _ident); |
| 0 | 2471 fflush(fp); |
| 2472 fprintf(stderr,"No format defined for %s\n", _ident); | |
| 2473 dump(); | |
| 2474 assert( false,"Internal error:\n output_internal_operand() attempting to output other than a Register or Constant"); | |
| 2475 } | |
| 2476 } | |
| 2477 | |
| 2478 // Similar to "int_format" but for cases where data is external to operand | |
| 2479 // external access to reg# node->in(idx)->_idx, | |
| 2480 void OperandForm::ext_format(FILE *fp, FormDict &globals, uint index) { | |
| 2481 Form::DataType dtype; | |
| 2482 if (_matrule && (_matrule->is_base_register(globals) || | |
| 2483 strcmp(ideal_type(globalAD->globalNames()), "RegFlags") == 0)) { | |
| 6850 | 2484 fprintf(fp," { char reg_str[128];\n"); |
| 2485 fprintf(fp," ra->dump_register(node->in(idx"); | |
| 2486 if ( index != 0 ) fprintf(fp, "+%d",index); | |
| 2487 fprintf(fp, "),reg_str);\n"); | |
| 2488 fprintf(fp," st->print(\"%cs\",reg_str);\n",'%'); | |
| 2489 fprintf(fp," }\n"); | |
| 0 | 2490 } else if (_matrule && (dtype = _matrule->is_base_constant(globals)) != Form::none) { |
| 2491 format_constant( fp, index, dtype ); | |
| 2492 } else if (ideal_to_sReg_type(_ident) != Form::none) { | |
| 2493 // Special format for Stack Slot Register | |
| 6850 | 2494 fprintf(fp," { char reg_str[128];\n"); |
| 2495 fprintf(fp," ra->dump_register(node->in(idx"); | |
| 0 | 2496 if ( index != 0 ) fprintf(fp, "+%d",index); |
| 2497 fprintf(fp, "),reg_str);\n"); | |
| 6850 | 2498 fprintf(fp," st->print(\"%cs\",reg_str);\n",'%'); |
| 2499 fprintf(fp," }\n"); | |
| 0 | 2500 } else { |
| 6850 | 2501 fprintf(fp," st->print(\"No format defined for %s\n\");\n", _ident); |
| 0 | 2502 assert( false,"Internal error:\n output_external_operand() attempting to output other than a Register or Constant"); |
| 2503 } | |
| 2504 } | |
| 2505 | |
| 2506 void OperandForm::format_constant(FILE *fp, uint const_index, uint const_type) { | |
| 2507 switch(const_type) { | |
| 6850 | 2508 case Form::idealI: fprintf(fp," st->print(\"#%%d\", _c%d);\n", const_index); break; |
| 2509 case Form::idealP: fprintf(fp," if (_c%d) _c%d->dump_on(st);\n", const_index, const_index); break; | |
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2510 case Form::idealNKlass: |
| 6850 | 2511 case Form::idealN: fprintf(fp," if (_c%d) _c%d->dump_on(st);\n", const_index, const_index); break; |
| 2512 case Form::idealL: fprintf(fp," st->print(\"#%%lld\", _c%d);\n", const_index); break; | |
| 2513 case Form::idealF: fprintf(fp," st->print(\"#%%f\", _c%d);\n", const_index); break; | |
| 2514 case Form::idealD: fprintf(fp," st->print(\"#%%f\", _c%d);\n", const_index); break; | |
| 0 | 2515 default: |
| 2516 assert( false, "ShouldNotReachHere()"); | |
| 2517 } | |
| 2518 } | |
| 2519 | |
| 2520 // Return the operand form corresponding to the given index, else NULL. | |
| 2521 OperandForm *OperandForm::constant_operand(FormDict &globals, | |
| 2522 uint index) { | |
| 2523 // !!!!! | |
| 2524 // Check behavior on complex operands | |
| 2525 uint n_consts = num_consts(globals); | |
| 2526 if( n_consts > 0 ) { | |
| 2527 uint i = 0; | |
| 2528 const char *type; | |
| 2529 Component *comp; | |
| 2530 _components.reset(); | |
| 2531 if ((comp = _components.iter()) == NULL) { | |
| 2532 assert(n_consts == 1, "Bad component list detected.\n"); | |
| 2533 // Current operand is THE operand | |
| 2534 if ( index == 0 ) { | |
| 2535 return this; | |
| 2536 } | |
| 2537 } // end if NULL | |
| 2538 else { | |
| 2539 // Skip the first component, it can not be a DEF of a constant | |
| 2540 do { | |
| 2541 type = comp->base_type(globals); | |
| 2542 // Check that "type" is a 'ConI', 'ConP', ... | |
| 2543 if ( ideal_to_const_type(type) != Form::none ) { | |
| 2544 // When at correct component, get corresponding Operand | |
| 2545 if ( index == 0 ) { | |
| 2546 return globals[comp->_type]->is_operand(); | |
| 2547 } | |
| 2548 // Decrement number of constants to go | |
| 2549 --index; | |
| 2550 } | |
| 2551 } while((comp = _components.iter()) != NULL); | |
| 2552 } | |
| 2553 } | |
| 2554 | |
| 2555 // Did not find a constant for this index. | |
| 2556 return NULL; | |
| 2557 } | |
| 2558 | |
| 2559 // If this operand has a single ideal type, return its type | |
| 2560 Form::DataType OperandForm::simple_type(FormDict &globals) const { | |
| 2561 const char *type_name = ideal_type(globals); | |
| 2562 Form::DataType type = type_name ? ideal_to_const_type( type_name ) | |
| 2563 : Form::none; | |
| 2564 return type; | |
| 2565 } | |
| 2566 | |
| 2567 Form::DataType OperandForm::is_base_constant(FormDict &globals) const { | |
| 2568 if ( _matrule == NULL ) return Form::none; | |
| 2569 | |
| 2570 return _matrule->is_base_constant(globals); | |
| 2571 } | |
| 2572 | |
| 2573 // "true" if this operand is a simple type that is swallowed | |
| 2574 bool OperandForm::swallowed(FormDict &globals) const { | |
| 2575 Form::DataType type = simple_type(globals); | |
| 2576 if( type != Form::none ) { | |
| 2577 return true; | |
| 2578 } | |
| 2579 | |
| 2580 return false; | |
| 2581 } | |
| 2582 | |
| 2583 // Output code to access the value of the index'th constant | |
| 2584 void OperandForm::access_constant(FILE *fp, FormDict &globals, | |
| 2585 uint const_index) { | |
| 2586 OperandForm *oper = constant_operand(globals, const_index); | |
| 2587 assert( oper, "Index exceeds number of constants in operand"); | |
| 2588 Form::DataType dtype = oper->is_base_constant(globals); | |
| 2589 | |
| 2590 switch(dtype) { | |
| 2591 case idealI: fprintf(fp,"_c%d", const_index); break; | |
| 2592 case idealP: fprintf(fp,"_c%d->get_con()",const_index); break; | |
| 2593 case idealL: fprintf(fp,"_c%d", const_index); break; | |
| 2594 case idealF: fprintf(fp,"_c%d", const_index); break; | |
| 2595 case idealD: fprintf(fp,"_c%d", const_index); break; | |
| 2596 default: | |
| 2597 assert( false, "ShouldNotReachHere()"); | |
| 2598 } | |
| 2599 } | |
| 2600 | |
| 2601 | |
| 2602 void OperandForm::dump() { | |
| 2603 output(stderr); | |
| 2604 } | |
| 2605 | |
| 2606 void OperandForm::output(FILE *fp) { | |
| 2607 fprintf(fp,"\nOperand: %s\n", (_ident?_ident:"")); | |
| 2608 if (_matrule) _matrule->dump(); | |
| 2609 if (_interface) _interface->dump(); | |
| 2610 if (_attribs) _attribs->dump(); | |
| 2611 if (_predicate) _predicate->dump(); | |
| 2612 if (_constraint) _constraint->dump(); | |
| 2613 if (_construct) _construct->dump(); | |
| 2614 if (_format) _format->dump(); | |
| 2615 } | |
| 2616 | |
| 2617 //------------------------------Constraint------------------------------------- | |
| 2618 Constraint::Constraint(const char *func, const char *arg) | |
| 2619 : _func(func), _arg(arg) { | |
| 2620 } | |
| 2621 Constraint::~Constraint() { /* not owner of char* */ | |
| 2622 } | |
| 2623 | |
| 2624 bool Constraint::stack_slots_only() const { | |
| 2625 return strcmp(_func, "ALLOC_IN_RC") == 0 | |
| 2626 && strcmp(_arg, "stack_slots") == 0; | |
| 2627 } | |
| 2628 | |
| 2629 void Constraint::dump() { | |
| 2630 output(stderr); | |
| 2631 } | |
| 2632 | |
| 2633 void Constraint::output(FILE *fp) { // Write info to output files | |
| 2634 assert((_func != NULL && _arg != NULL),"missing constraint function or arg"); | |
| 2635 fprintf(fp,"Constraint: %s ( %s )\n", _func, _arg); | |
| 2636 } | |
| 2637 | |
| 2638 //------------------------------Predicate-------------------------------------- | |
| 2639 Predicate::Predicate(char *pr) | |
| 2640 : _pred(pr) { | |
| 2641 } | |
| 2642 Predicate::~Predicate() { | |
| 2643 } | |
| 2644 | |
| 2645 void Predicate::dump() { | |
| 2646 output(stderr); | |
| 2647 } | |
| 2648 | |
| 2649 void Predicate::output(FILE *fp) { | |
| 2650 fprintf(fp,"Predicate"); // Write to output files | |
| 2651 } | |
| 2652 //------------------------------Interface-------------------------------------- | |
| 2653 Interface::Interface(const char *name) : _name(name) { | |
| 2654 } | |
| 2655 Interface::~Interface() { | |
| 2656 } | |
| 2657 | |
| 2658 Form::InterfaceType Interface::interface_type(FormDict &globals) const { | |
| 2659 Interface *thsi = (Interface*)this; | |
| 2660 if ( thsi->is_RegInterface() ) return Form::register_interface; | |
| 2661 if ( thsi->is_MemInterface() ) return Form::memory_interface; | |
| 2662 if ( thsi->is_ConstInterface() ) return Form::constant_interface; | |
| 2663 if ( thsi->is_CondInterface() ) return Form::conditional_interface; | |
| 2664 | |
| 2665 return Form::no_interface; | |
| 2666 } | |
| 2667 | |
| 2668 RegInterface *Interface::is_RegInterface() { | |
| 2669 if ( strcmp(_name,"REG_INTER") != 0 ) | |
| 2670 return NULL; | |
| 2671 return (RegInterface*)this; | |
| 2672 } | |
| 2673 MemInterface *Interface::is_MemInterface() { | |
| 2674 if ( strcmp(_name,"MEMORY_INTER") != 0 ) return NULL; | |
| 2675 return (MemInterface*)this; | |
| 2676 } | |
| 2677 ConstInterface *Interface::is_ConstInterface() { | |
| 2678 if ( strcmp(_name,"CONST_INTER") != 0 ) return NULL; | |
| 2679 return (ConstInterface*)this; | |
| 2680 } | |
| 2681 CondInterface *Interface::is_CondInterface() { | |
| 2682 if ( strcmp(_name,"COND_INTER") != 0 ) return NULL; | |
| 2683 return (CondInterface*)this; | |
| 2684 } | |
| 2685 | |
| 2686 | |
| 2687 void Interface::dump() { | |
| 2688 output(stderr); | |
| 2689 } | |
| 2690 | |
| 2691 // Write info to output files | |
| 2692 void Interface::output(FILE *fp) { | |
| 2693 fprintf(fp,"Interface: %s\n", (_name ? _name : "") ); | |
| 2694 } | |
| 2695 | |
| 2696 //------------------------------RegInterface----------------------------------- | |
| 2697 RegInterface::RegInterface() : Interface("REG_INTER") { | |
| 2698 } | |
| 2699 RegInterface::~RegInterface() { | |
| 2700 } | |
| 2701 | |
| 2702 void RegInterface::dump() { | |
| 2703 output(stderr); | |
| 2704 } | |
| 2705 | |
| 2706 // Write info to output files | |
| 2707 void RegInterface::output(FILE *fp) { | |
| 2708 Interface::output(fp); | |
| 2709 } | |
| 2710 | |
| 2711 //------------------------------ConstInterface--------------------------------- | |
| 2712 ConstInterface::ConstInterface() : Interface("CONST_INTER") { | |
| 2713 } | |
| 2714 ConstInterface::~ConstInterface() { | |
| 2715 } | |
| 2716 | |
| 2717 void ConstInterface::dump() { | |
| 2718 output(stderr); | |
| 2719 } | |
| 2720 | |
| 2721 // Write info to output files | |
| 2722 void ConstInterface::output(FILE *fp) { | |
| 2723 Interface::output(fp); | |
| 2724 } | |
| 2725 | |
| 2726 //------------------------------MemInterface----------------------------------- | |
| 2727 MemInterface::MemInterface(char *base, char *index, char *scale, char *disp) | |
| 2728 : Interface("MEMORY_INTER"), _base(base), _index(index), _scale(scale), _disp(disp) { | |
| 2729 } | |
| 2730 MemInterface::~MemInterface() { | |
| 2731 // not owner of any character arrays | |
| 2732 } | |
| 2733 | |
| 2734 void MemInterface::dump() { | |
| 2735 output(stderr); | |
| 2736 } | |
| 2737 | |
| 2738 // Write info to output files | |
| 2739 void MemInterface::output(FILE *fp) { | |
| 2740 Interface::output(fp); | |
| 2741 if ( _base != NULL ) fprintf(fp," base == %s\n", _base); | |
| 2742 if ( _index != NULL ) fprintf(fp," index == %s\n", _index); | |
| 2743 if ( _scale != NULL ) fprintf(fp," scale == %s\n", _scale); | |
| 2744 if ( _disp != NULL ) fprintf(fp," disp == %s\n", _disp); | |
| 2745 // fprintf(fp,"\n"); | |
| 2746 } | |
| 2747 | |
| 2748 //------------------------------CondInterface---------------------------------- | |
|
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2749 CondInterface::CondInterface(const char* equal, const char* equal_format, |
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2750 const char* not_equal, const char* not_equal_format, |
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2751 const char* less, const char* less_format, |
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2752 const char* greater_equal, const char* greater_equal_format, |
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2753 const char* less_equal, const char* less_equal_format, |
| 12323 | 2754 const char* greater, const char* greater_format, |
| 2755 const char* overflow, const char* overflow_format, | |
| 2756 const char* no_overflow, const char* no_overflow_format) | |
| 0 | 2757 : Interface("COND_INTER"), |
|
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2758 _equal(equal), _equal_format(equal_format), |
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2759 _not_equal(not_equal), _not_equal_format(not_equal_format), |
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2760 _less(less), _less_format(less_format), |
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2761 _greater_equal(greater_equal), _greater_equal_format(greater_equal_format), |
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2762 _less_equal(less_equal), _less_equal_format(less_equal_format), |
| 12323 | 2763 _greater(greater), _greater_format(greater_format), |
| 2764 _overflow(overflow), _overflow_format(overflow_format), | |
| 2765 _no_overflow(no_overflow), _no_overflow_format(no_overflow_format) { | |
| 0 | 2766 } |
| 2767 CondInterface::~CondInterface() { | |
| 2768 // not owner of any character arrays | |
| 2769 } | |
| 2770 | |
| 2771 void CondInterface::dump() { | |
| 2772 output(stderr); | |
| 2773 } | |
| 2774 | |
| 2775 // Write info to output files | |
| 2776 void CondInterface::output(FILE *fp) { | |
| 2777 Interface::output(fp); | |
| 12323 | 2778 if ( _equal != NULL ) fprintf(fp," equal == %s\n", _equal); |
| 2779 if ( _not_equal != NULL ) fprintf(fp," not_equal == %s\n", _not_equal); | |
| 2780 if ( _less != NULL ) fprintf(fp," less == %s\n", _less); | |
| 2781 if ( _greater_equal != NULL ) fprintf(fp," greater_equal == %s\n", _greater_equal); | |
| 2782 if ( _less_equal != NULL ) fprintf(fp," less_equal == %s\n", _less_equal); | |
| 2783 if ( _greater != NULL ) fprintf(fp," greater == %s\n", _greater); | |
| 2784 if ( _overflow != NULL ) fprintf(fp," overflow == %s\n", _overflow); | |
| 2785 if ( _no_overflow != NULL ) fprintf(fp," no_overflow == %s\n", _no_overflow); | |
| 0 | 2786 // fprintf(fp,"\n"); |
| 2787 } | |
| 2788 | |
| 2789 //------------------------------ConstructRule---------------------------------- | |
| 2790 ConstructRule::ConstructRule(char *cnstr) | |
| 2791 : _construct(cnstr) { | |
| 2792 } | |
| 2793 ConstructRule::~ConstructRule() { | |
| 2794 } | |
| 2795 | |
| 2796 void ConstructRule::dump() { | |
| 2797 output(stderr); | |
| 2798 } | |
| 2799 | |
| 2800 void ConstructRule::output(FILE *fp) { | |
| 2801 fprintf(fp,"\nConstruct Rule\n"); // Write to output files | |
| 2802 } | |
| 2803 | |
| 2804 | |
| 2805 //==============================Shared Forms=================================== | |
| 2806 //------------------------------AttributeForm---------------------------------- | |
| 2807 int AttributeForm::_insId = 0; // start counter at 0 | |
| 2808 int AttributeForm::_opId = 0; // start counter at 0 | |
| 2809 const char* AttributeForm::_ins_cost = "ins_cost"; // required name | |
| 2810 const char* AttributeForm::_op_cost = "op_cost"; // required name | |
| 2811 | |
| 2812 AttributeForm::AttributeForm(char *attr, int type, char *attrdef) | |
| 2813 : Form(Form::ATTR), _attrname(attr), _atype(type), _attrdef(attrdef) { | |
| 2814 if (type==OP_ATTR) { | |
| 2815 id = ++_opId; | |
| 2816 } | |
| 2817 else if (type==INS_ATTR) { | |
| 2818 id = ++_insId; | |
| 2819 } | |
| 2820 else assert( false,""); | |
| 2821 } | |
| 2822 AttributeForm::~AttributeForm() { | |
| 2823 } | |
| 2824 | |
| 2825 // Dynamic type check | |
| 2826 AttributeForm *AttributeForm::is_attribute() const { | |
| 2827 return (AttributeForm*)this; | |
| 2828 } | |
| 2829 | |
| 2830 | |
| 2831 // inlined // int AttributeForm::type() { return id;} | |
| 2832 | |
| 2833 void AttributeForm::dump() { | |
| 2834 output(stderr); | |
| 2835 } | |
| 2836 | |
| 2837 void AttributeForm::output(FILE *fp) { | |
| 2838 if( _attrname && _attrdef ) { | |
| 2839 fprintf(fp,"\n// AttributeForm \nstatic const int %s = %s;\n", | |
| 2840 _attrname, _attrdef); | |
| 2841 } | |
| 2842 else { | |
| 2843 fprintf(fp,"\n// AttributeForm missing name %s or definition %s\n", | |
| 2844 (_attrname?_attrname:""), (_attrdef?_attrdef:"") ); | |
| 2845 } | |
| 2846 } | |
| 2847 | |
| 2848 //------------------------------Component-------------------------------------- | |
| 2849 Component::Component(const char *name, const char *type, int usedef) | |
| 2850 : _name(name), _type(type), _usedef(usedef) { | |
| 2851 _ftype = Form::COMP; | |
| 2852 } | |
| 2853 Component::~Component() { | |
| 2854 } | |
| 2855 | |
| 2856 // True if this component is equal to the parameter. | |
| 2857 bool Component::is(int use_def_kill_enum) const { | |
| 2858 return (_usedef == use_def_kill_enum ? true : false); | |
| 2859 } | |
| 2860 // True if this component is used/def'd/kill'd as the parameter suggests. | |
| 2861 bool Component::isa(int use_def_kill_enum) const { | |
| 2862 return (_usedef & use_def_kill_enum) == use_def_kill_enum; | |
| 2863 } | |
| 2864 | |
| 2865 // Extend this component with additional use/def/kill behavior | |
| 2866 int Component::promote_use_def_info(int new_use_def) { | |
| 2867 _usedef |= new_use_def; | |
| 2868 | |
| 2869 return _usedef; | |
| 2870 } | |
| 2871 | |
| 2872 // Check the base type of this component, if it has one | |
| 2873 const char *Component::base_type(FormDict &globals) { | |
| 2874 const Form *frm = globals[_type]; | |
| 2875 if (frm == NULL) return NULL; | |
| 2876 OperandForm *op = frm->is_operand(); | |
| 2877 if (op == NULL) return NULL; | |
| 2878 if (op->ideal_only()) return op->_ident; | |
| 2879 return (char *)op->ideal_type(globals); | |
| 2880 } | |
| 2881 | |
| 2882 void Component::dump() { | |
| 2883 output(stderr); | |
| 2884 } | |
| 2885 | |
| 2886 void Component::output(FILE *fp) { | |
| 2887 fprintf(fp,"Component:"); // Write to output files | |
| 2888 fprintf(fp, " name = %s", _name); | |
| 2889 fprintf(fp, ", type = %s", _type); | |
| 6850 | 2890 assert(_usedef != 0, "unknown effect"); |
| 2891 fprintf(fp, ", use/def = %s\n", getUsedefName()); | |
| 0 | 2892 } |
| 2893 | |
| 2894 | |
| 2895 //------------------------------ComponentList--------------------------------- | |
| 2896 ComponentList::ComponentList() : NameList(), _matchcnt(0) { | |
| 2897 } | |
| 2898 ComponentList::~ComponentList() { | |
| 2899 // // This list may not own its elements if copied via assignment | |
| 2900 // Component *component; | |
| 2901 // for (reset(); (component = iter()) != NULL;) { | |
| 2902 // delete component; | |
| 2903 // } | |
| 2904 } | |
| 2905 | |
| 2906 void ComponentList::insert(Component *component, bool mflag) { | |
| 2907 NameList::addName((char *)component); | |
| 2908 if(mflag) _matchcnt++; | |
| 2909 } | |
| 2910 void ComponentList::insert(const char *name, const char *opType, int usedef, | |
| 2911 bool mflag) { | |
| 2912 Component * component = new Component(name, opType, usedef); | |
| 2913 insert(component, mflag); | |
| 2914 } | |
| 2915 Component *ComponentList::current() { return (Component*)NameList::current(); } | |
| 2916 Component *ComponentList::iter() { return (Component*)NameList::iter(); } | |
| 2917 Component *ComponentList::match_iter() { | |
| 2918 if(_iter < _matchcnt) return (Component*)NameList::iter(); | |
| 2919 return NULL; | |
| 2920 } | |
| 2921 Component *ComponentList::post_match_iter() { | |
| 2922 Component *comp = iter(); | |
| 2923 // At end of list? | |
| 2924 if ( comp == NULL ) { | |
| 2925 return comp; | |
| 2926 } | |
| 2927 // In post-match components? | |
| 2928 if (_iter > match_count()-1) { | |
| 2929 return comp; | |
| 2930 } | |
| 2931 | |
| 2932 return post_match_iter(); | |
| 2933 } | |
| 2934 | |
| 2935 void ComponentList::reset() { NameList::reset(); } | |
| 2936 int ComponentList::count() { return NameList::count(); } | |
| 2937 | |
| 2938 Component *ComponentList::operator[](int position) { | |
| 2939 // Shortcut complete iteration if there are not enough entries | |
| 2940 if (position >= count()) return NULL; | |
| 2941 | |
| 2942 int index = 0; | |
| 2943 Component *component = NULL; | |
| 2944 for (reset(); (component = iter()) != NULL;) { | |
| 2945 if (index == position) { | |
| 2946 return component; | |
| 2947 } | |
| 2948 ++index; | |
| 2949 } | |
| 2950 | |
| 2951 return NULL; | |
| 2952 } | |
| 2953 | |
| 2954 const Component *ComponentList::search(const char *name) { | |
| 2955 PreserveIter pi(this); | |
| 2956 reset(); | |
| 2957 for( Component *comp = NULL; ((comp = iter()) != NULL); ) { | |
| 2958 if( strcmp(comp->_name,name) == 0 ) return comp; | |
| 2959 } | |
| 2960 | |
| 2961 return NULL; | |
| 2962 } | |
| 2963 | |
| 2964 // Return number of USEs + number of DEFs | |
| 2965 // When there are no components, or the first component is a USE, | |
| 2966 // then we add '1' to hold a space for the 'result' operand. | |
| 2967 int ComponentList::num_operands() { | |
| 2968 PreserveIter pi(this); | |
| 2969 uint count = 1; // result operand | |
| 2970 uint position = 0; | |
| 2971 | |
| 2972 Component *component = NULL; | |
| 2973 for( reset(); (component = iter()) != NULL; ++position ) { | |
| 2974 if( component->isa(Component::USE) || | |
| 2975 ( position == 0 && (! component->isa(Component::DEF))) ) { | |
| 2976 ++count; | |
| 2977 } | |
| 2978 } | |
| 2979 | |
| 2980 return count; | |
| 2981 } | |
| 2982 | |
| 6850 | 2983 // Return zero-based position of operand 'name' in list; -1 if not in list. |
| 0 | 2984 // if parameter 'usedef' is ::USE, it will match USE, USE_DEF, ... |
| 6850 | 2985 int ComponentList::operand_position(const char *name, int usedef, Form *fm) { |
| 0 | 2986 PreserveIter pi(this); |
| 2987 int position = 0; | |
| 2988 int num_opnds = num_operands(); | |
| 2989 Component *component; | |
| 2990 Component* preceding_non_use = NULL; | |
| 2991 Component* first_def = NULL; | |
| 2992 for (reset(); (component = iter()) != NULL; ++position) { | |
| 2993 // When the first component is not a DEF, | |
| 2994 // leave space for the result operand! | |
| 2995 if ( position==0 && (! component->isa(Component::DEF)) ) { | |
| 2996 ++position; | |
| 2997 ++num_opnds; | |
| 2998 } | |
| 2999 if (strcmp(name, component->_name)==0 && (component->isa(usedef))) { | |
| 3000 // When the first entry in the component list is a DEF and a USE | |
| 3001 // Treat them as being separate, a DEF first, then a USE | |
| 3002 if( position==0 | |
| 3003 && usedef==Component::USE && component->isa(Component::DEF) ) { | |
| 3004 assert(position+1 < num_opnds, "advertised index in bounds"); | |
| 3005 return position+1; | |
| 3006 } else { | |
| 3007 if( preceding_non_use && strcmp(component->_name, preceding_non_use->_name) ) { | |
| 6850 | 3008 fprintf(stderr, "the name '%s(%s)' should not precede the name '%s(%s)'", |
| 3009 preceding_non_use->_name, preceding_non_use->getUsedefName(), | |
| 3010 name, component->getUsedefName()); | |
| 3011 if (fm && fm->is_instruction()) fprintf(stderr, "in form '%s'", fm->is_instruction()->_ident); | |
| 3012 if (fm && fm->is_operand()) fprintf(stderr, "in form '%s'", fm->is_operand()->_ident); | |
| 3013 fprintf(stderr, "\n"); | |
| 0 | 3014 } |
| 3015 if( position >= num_opnds ) { | |
| 6850 | 3016 fprintf(stderr, "the name '%s' is too late in its name list", name); |
| 3017 if (fm && fm->is_instruction()) fprintf(stderr, "in form '%s'", fm->is_instruction()->_ident); | |
| 3018 if (fm && fm->is_operand()) fprintf(stderr, "in form '%s'", fm->is_operand()->_ident); | |
| 3019 fprintf(stderr, "\n"); | |
| 0 | 3020 } |
| 3021 assert(position < num_opnds, "advertised index in bounds"); | |
| 3022 return position; | |
| 3023 } | |
| 3024 } | |
| 3025 if( component->isa(Component::DEF) | |
| 3026 && component->isa(Component::USE) ) { | |
| 3027 ++position; | |
| 3028 if( position != 1 ) --position; // only use two slots for the 1st USE_DEF | |
| 3029 } | |
| 3030 if( component->isa(Component::DEF) && !first_def ) { | |
| 3031 first_def = component; | |
| 3032 } | |
| 3033 if( !component->isa(Component::USE) && component != first_def ) { | |
| 3034 preceding_non_use = component; | |
| 3035 } else if( preceding_non_use && !strcmp(component->_name, preceding_non_use->_name) ) { | |
| 3036 preceding_non_use = NULL; | |
| 3037 } | |
| 3038 } | |
| 3039 return Not_in_list; | |
| 3040 } | |
| 3041 | |
| 3042 // Find position for this name, regardless of use/def information | |
| 3043 int ComponentList::operand_position(const char *name) { | |
| 3044 PreserveIter pi(this); | |
| 3045 int position = 0; | |
| 3046 Component *component; | |
| 3047 for (reset(); (component = iter()) != NULL; ++position) { | |
| 3048 // When the first component is not a DEF, | |
| 3049 // leave space for the result operand! | |
| 3050 if ( position==0 && (! component->isa(Component::DEF)) ) { | |
| 3051 ++position; | |
| 3052 } | |
| 3053 if (strcmp(name, component->_name)==0) { | |
| 3054 return position; | |
| 3055 } | |
| 3056 if( component->isa(Component::DEF) | |
| 3057 && component->isa(Component::USE) ) { | |
| 3058 ++position; | |
| 3059 if( position != 1 ) --position; // only use two slots for the 1st USE_DEF | |
| 3060 } | |
| 3061 } | |
| 3062 return Not_in_list; | |
| 3063 } | |
| 3064 | |
| 6850 | 3065 int ComponentList::operand_position_format(const char *name, Form *fm) { |
| 0 | 3066 PreserveIter pi(this); |
| 3067 int first_position = operand_position(name); | |
| 6850 | 3068 int use_position = operand_position(name, Component::USE, fm); |
| 0 | 3069 |
| 3070 return ((first_position < use_position) ? use_position : first_position); | |
| 3071 } | |
| 3072 | |
| 3073 int ComponentList::label_position() { | |
| 3074 PreserveIter pi(this); | |
| 3075 int position = 0; | |
| 3076 reset(); | |
| 3077 for( Component *comp; (comp = iter()) != NULL; ++position) { | |
| 3078 // When the first component is not a DEF, | |
| 3079 // leave space for the result operand! | |
| 3080 if ( position==0 && (! comp->isa(Component::DEF)) ) { | |
| 3081 ++position; | |
| 3082 } | |
| 3083 if (strcmp(comp->_type, "label")==0) { | |
| 3084 return position; | |
| 3085 } | |
| 3086 if( comp->isa(Component::DEF) | |
| 3087 && comp->isa(Component::USE) ) { | |
| 3088 ++position; | |
| 3089 if( position != 1 ) --position; // only use two slots for the 1st USE_DEF | |
| 3090 } | |
| 3091 } | |
| 3092 | |
| 3093 return -1; | |
| 3094 } | |
| 3095 | |
| 3096 int ComponentList::method_position() { | |
| 3097 PreserveIter pi(this); | |
| 3098 int position = 0; | |
| 3099 reset(); | |
| 3100 for( Component *comp; (comp = iter()) != NULL; ++position) { | |
| 3101 // When the first component is not a DEF, | |
| 3102 // leave space for the result operand! | |
| 3103 if ( position==0 && (! comp->isa(Component::DEF)) ) { | |
| 3104 ++position; | |
| 3105 } | |
| 3106 if (strcmp(comp->_type, "method")==0) { | |
| 3107 return position; | |
| 3108 } | |
| 3109 if( comp->isa(Component::DEF) | |
| 3110 && comp->isa(Component::USE) ) { | |
| 3111 ++position; | |
| 3112 if( position != 1 ) --position; // only use two slots for the 1st USE_DEF | |
| 3113 } | |
| 3114 } | |
| 3115 | |
| 3116 return -1; | |
| 3117 } | |
| 3118 | |
| 3119 void ComponentList::dump() { output(stderr); } | |
| 3120 | |
| 3121 void ComponentList::output(FILE *fp) { | |
| 3122 PreserveIter pi(this); | |
| 3123 fprintf(fp, "\n"); | |
| 3124 Component *component; | |
| 3125 for (reset(); (component = iter()) != NULL;) { | |
| 3126 component->output(fp); | |
| 3127 } | |
| 3128 fprintf(fp, "\n"); | |
| 3129 } | |
| 3130 | |
| 3131 //------------------------------MatchNode-------------------------------------- | |
| 3132 MatchNode::MatchNode(ArchDesc &ad, const char *result, const char *mexpr, | |
| 3133 const char *opType, MatchNode *lChild, MatchNode *rChild) | |
| 3134 : _AD(ad), _result(result), _name(mexpr), _opType(opType), | |
| 3135 _lChild(lChild), _rChild(rChild), _internalop(0), _numleaves(0), | |
| 3136 _commutative_id(0) { | |
| 3137 _numleaves = (lChild ? lChild->_numleaves : 0) | |
| 3138 + (rChild ? rChild->_numleaves : 0); | |
| 3139 } | |
| 3140 | |
| 3141 MatchNode::MatchNode(ArchDesc &ad, MatchNode& mnode) | |
| 3142 : _AD(ad), _result(mnode._result), _name(mnode._name), | |
| 3143 _opType(mnode._opType), _lChild(mnode._lChild), _rChild(mnode._rChild), | |
| 3144 _internalop(0), _numleaves(mnode._numleaves), | |
| 3145 _commutative_id(mnode._commutative_id) { | |
| 3146 } | |
| 3147 | |
| 3148 MatchNode::MatchNode(ArchDesc &ad, MatchNode& mnode, int clone) | |
| 3149 : _AD(ad), _result(mnode._result), _name(mnode._name), | |
| 3150 _opType(mnode._opType), | |
| 3151 _internalop(0), _numleaves(mnode._numleaves), | |
| 3152 _commutative_id(mnode._commutative_id) { | |
| 3153 if (mnode._lChild) { | |
| 3154 _lChild = new MatchNode(ad, *mnode._lChild, clone); | |
| 3155 } else { | |
| 3156 _lChild = NULL; | |
| 3157 } | |
| 3158 if (mnode._rChild) { | |
| 3159 _rChild = new MatchNode(ad, *mnode._rChild, clone); | |
| 3160 } else { | |
| 3161 _rChild = NULL; | |
| 3162 } | |
| 3163 } | |
| 3164 | |
| 3165 MatchNode::~MatchNode() { | |
| 3166 // // This node may not own its children if copied via assignment | |
| 3167 // if( _lChild ) delete _lChild; | |
| 3168 // if( _rChild ) delete _rChild; | |
| 3169 } | |
| 3170 | |
| 3171 bool MatchNode::find_type(const char *type, int &position) const { | |
| 3172 if ( (_lChild != NULL) && (_lChild->find_type(type, position)) ) return true; | |
| 3173 if ( (_rChild != NULL) && (_rChild->find_type(type, position)) ) return true; | |
| 3174 | |
| 3175 if (strcmp(type,_opType)==0) { | |
| 3176 return true; | |
| 3177 } else { | |
| 3178 ++position; | |
| 3179 } | |
| 3180 return false; | |
| 3181 } | |
| 3182 | |
| 3183 // Recursive call collecting info on top-level operands, not transitive. | |
| 3184 // Implementation does not modify state of internal structures. | |
|
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3185 void MatchNode::append_components(FormDict& locals, ComponentList& components, |
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3186 bool def_flag) const { |
|
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3187 int usedef = def_flag ? Component::DEF : Component::USE; |
| 0 | 3188 FormDict &globals = _AD.globalNames(); |
| 3189 | |
| 3190 assert (_name != NULL, "MatchNode::build_components encountered empty node\n"); | |
| 3191 // Base case | |
| 3192 if (_lChild==NULL && _rChild==NULL) { | |
| 3193 // If _opType is not an operation, do not build a component for it ##### | |
| 3194 const Form *f = globals[_opType]; | |
| 3195 if( f != NULL ) { | |
| 3196 // Add non-ideals that are operands, operand-classes, | |
| 3197 if( ! f->ideal_only() | |
| 3198 && (f->is_opclass() || f->is_operand()) ) { | |
| 3199 components.insert(_name, _opType, usedef, true); | |
| 3200 } | |
| 3201 } | |
| 3202 return; | |
| 3203 } | |
| 3204 // Promote results of "Set" to DEF | |
|
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3205 bool tmpdef_flag = (!strcmp(_opType, "Set")) ? true : false; |
|
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|
3206 if (_lChild) _lChild->append_components(locals, components, tmpdef_flag); |
|
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|
3207 tmpdef_flag = false; // only applies to component immediately following 'Set' |
|
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|
3208 if (_rChild) _rChild->append_components(locals, components, tmpdef_flag); |
| 0 | 3209 } |
| 3210 | |
| 3211 // Find the n'th base-operand in the match node, | |
| 3212 // recursively investigates match rules of user-defined operands. | |
| 3213 // | |
| 3214 // Implementation does not modify state of internal structures since they | |
| 3215 // can be shared. | |
| 3216 bool MatchNode::base_operand(uint &position, FormDict &globals, | |
| 3217 const char * &result, const char * &name, | |
| 3218 const char * &opType) const { | |
| 3219 assert (_name != NULL, "MatchNode::base_operand encountered empty node\n"); | |
| 3220 // Base case | |
| 3221 if (_lChild==NULL && _rChild==NULL) { | |
| 3222 // Check for special case: "Universe", "label" | |
| 3223 if (strcmp(_opType,"Universe") == 0 || strcmp(_opType,"label")==0 ) { | |
| 3224 if (position == 0) { | |
| 3225 result = _result; | |
| 3226 name = _name; | |
| 3227 opType = _opType; | |
| 3228 return 1; | |
| 3229 } else { | |
| 3230 -- position; | |
| 3231 return 0; | |
| 3232 } | |
| 3233 } | |
| 3234 | |
| 3235 const Form *form = globals[_opType]; | |
| 3236 MatchNode *matchNode = NULL; | |
| 3237 // Check for user-defined type | |
| 3238 if (form) { | |
| 3239 // User operand or instruction? | |
| 3240 OperandForm *opForm = form->is_operand(); | |
| 3241 InstructForm *inForm = form->is_instruction(); | |
| 3242 if ( opForm ) { | |
| 3243 matchNode = (MatchNode*)opForm->_matrule; | |
| 3244 } else if ( inForm ) { | |
| 3245 matchNode = (MatchNode*)inForm->_matrule; | |
| 3246 } | |
| 3247 } | |
| 3248 // if this is user-defined, recurse on match rule | |
| 3249 // User-defined operand and instruction forms have a match-rule. | |
| 3250 if (matchNode) { | |
| 3251 return (matchNode->base_operand(position,globals,result,name,opType)); | |
| 3252 } else { | |
| 3253 // Either not a form, or a system-defined form (no match rule). | |
| 3254 if (position==0) { | |
| 3255 result = _result; | |
| 3256 name = _name; | |
| 3257 opType = _opType; | |
| 3258 return 1; | |
| 3259 } else { | |
| 3260 --position; | |
| 3261 return 0; | |
| 3262 } | |
| 3263 } | |
| 3264 | |
| 3265 } else { | |
| 3266 // Examine the left child and right child as well | |
| 3267 if (_lChild) { | |
| 3268 if (_lChild->base_operand(position, globals, result, name, opType)) | |
| 3269 return 1; | |
| 3270 } | |
| 3271 | |
| 3272 if (_rChild) { | |
| 3273 if (_rChild->base_operand(position, globals, result, name, opType)) | |
| 3274 return 1; | |
| 3275 } | |
| 3276 } | |
| 3277 | |
| 3278 return 0; | |
| 3279 } | |
| 3280 | |
| 3281 // Recursive call on all operands' match rules in my match rule. | |
| 3282 uint MatchNode::num_consts(FormDict &globals) const { | |
| 3283 uint index = 0; | |
| 3284 uint num_consts = 0; | |
| 3285 const char *result; | |
| 3286 const char *name; | |
| 3287 const char *opType; | |
| 3288 | |
| 3289 for (uint position = index; | |
| 3290 base_operand(position,globals,result,name,opType); position = index) { | |
| 3291 ++index; | |
| 3292 if( ideal_to_const_type(opType) ) num_consts++; | |
| 3293 } | |
| 3294 | |
| 3295 return num_consts; | |
| 3296 } | |
| 3297 | |
| 3298 // Recursive call on all operands' match rules in my match rule. | |
| 3299 // Constants in match rule subtree with specified type | |
| 3300 uint MatchNode::num_consts(FormDict &globals, Form::DataType type) const { | |
| 3301 uint index = 0; | |
| 3302 uint num_consts = 0; | |
| 3303 const char *result; | |
| 3304 const char *name; | |
| 3305 const char *opType; | |
| 3306 | |
| 3307 for (uint position = index; | |
| 3308 base_operand(position,globals,result,name,opType); position = index) { | |
| 3309 ++index; | |
| 3310 if( ideal_to_const_type(opType) == type ) num_consts++; | |
| 3311 } | |
| 3312 | |
| 3313 return num_consts; | |
| 3314 } | |
| 3315 | |
| 3316 // Recursive call on all operands' match rules in my match rule. | |
| 3317 uint MatchNode::num_const_ptrs(FormDict &globals) const { | |
| 3318 return num_consts( globals, Form::idealP ); | |
| 3319 } | |
| 3320 | |
| 3321 bool MatchNode::sets_result() const { | |
| 3322 return ( (strcmp(_name,"Set") == 0) ? true : false ); | |
| 3323 } | |
| 3324 | |
| 3325 const char *MatchNode::reduce_right(FormDict &globals) const { | |
| 3326 // If there is no right reduction, return NULL. | |
| 3327 const char *rightStr = NULL; | |
| 3328 | |
| 3329 // If we are a "Set", start from the right child. | |
| 3330 const MatchNode *const mnode = sets_result() ? | |
| 6850 | 3331 (const MatchNode *)this->_rChild : |
| 3332 (const MatchNode *)this; | |
| 0 | 3333 |
| 3334 // If our right child exists, it is the right reduction | |
| 3335 if ( mnode->_rChild ) { | |
| 3336 rightStr = mnode->_rChild->_internalop ? mnode->_rChild->_internalop | |
| 3337 : mnode->_rChild->_opType; | |
| 3338 } | |
| 3339 // Else, May be simple chain rule: (Set dst operand_form), rightStr=NULL; | |
| 3340 return rightStr; | |
| 3341 } | |
| 3342 | |
| 3343 const char *MatchNode::reduce_left(FormDict &globals) const { | |
| 3344 // If there is no left reduction, return NULL. | |
| 3345 const char *leftStr = NULL; | |
| 3346 | |
| 3347 // If we are a "Set", start from the right child. | |
| 3348 const MatchNode *const mnode = sets_result() ? | |
| 6850 | 3349 (const MatchNode *)this->_rChild : |
| 3350 (const MatchNode *)this; | |
| 0 | 3351 |
| 3352 // If our left child exists, it is the left reduction | |
| 3353 if ( mnode->_lChild ) { | |
| 3354 leftStr = mnode->_lChild->_internalop ? mnode->_lChild->_internalop | |
| 3355 : mnode->_lChild->_opType; | |
| 3356 } else { | |
| 3357 // May be simple chain rule: (Set dst operand_form_source) | |
| 3358 if ( sets_result() ) { | |
| 3359 OperandForm *oper = globals[mnode->_opType]->is_operand(); | |
| 3360 if( oper ) { | |
| 3361 leftStr = mnode->_opType; | |
| 3362 } | |
| 3363 } | |
| 3364 } | |
| 3365 return leftStr; | |
| 3366 } | |
| 3367 | |
| 3368 //------------------------------count_instr_names------------------------------ | |
| 3369 // Count occurrences of operands names in the leaves of the instruction | |
| 3370 // match rule. | |
| 3371 void MatchNode::count_instr_names( Dict &names ) { | |
| 3372 if( !this ) return; | |
| 3373 if( _lChild ) _lChild->count_instr_names(names); | |
| 3374 if( _rChild ) _rChild->count_instr_names(names); | |
| 3375 if( !_lChild && !_rChild ) { | |
| 3376 uintptr_t cnt = (uintptr_t)names[_name]; | |
| 3377 cnt++; // One more name found | |
| 3378 names.Insert(_name,(void*)cnt); | |
| 3379 } | |
| 3380 } | |
| 3381 | |
| 3382 //------------------------------build_instr_pred------------------------------- | |
| 3383 // Build a path to 'name' in buf. Actually only build if cnt is zero, so we | |
| 3384 // can skip some leading instances of 'name'. | |
| 3385 int MatchNode::build_instr_pred( char *buf, const char *name, int cnt ) { | |
| 3386 if( _lChild ) { | |
| 3387 if( !cnt ) strcpy( buf, "_kids[0]->" ); | |
| 3388 cnt = _lChild->build_instr_pred( buf+strlen(buf), name, cnt ); | |
| 3389 if( cnt < 0 ) return cnt; // Found it, all done | |
| 3390 } | |
| 3391 if( _rChild ) { | |
| 3392 if( !cnt ) strcpy( buf, "_kids[1]->" ); | |
| 3393 cnt = _rChild->build_instr_pred( buf+strlen(buf), name, cnt ); | |
| 3394 if( cnt < 0 ) return cnt; // Found it, all done | |
| 3395 } | |
| 3396 if( !_lChild && !_rChild ) { // Found a leaf | |
| 3397 // Wrong name? Give up... | |
| 3398 if( strcmp(name,_name) ) return cnt; | |
| 3399 if( !cnt ) strcpy(buf,"_leaf"); | |
| 3400 return cnt-1; | |
| 3401 } | |
| 3402 return cnt; | |
| 3403 } | |
| 3404 | |
| 3405 | |
| 3406 //------------------------------build_internalop------------------------------- | |
| 3407 // Build string representation of subtree | |
| 3408 void MatchNode::build_internalop( ) { | |
| 3409 char *iop, *subtree; | |
| 3410 const char *lstr, *rstr; | |
| 3411 // Build string representation of subtree | |
| 3412 // Operation lchildType rchildType | |
| 3413 int len = (int)strlen(_opType) + 4; | |
| 3414 lstr = (_lChild) ? ((_lChild->_internalop) ? | |
| 3415 _lChild->_internalop : _lChild->_opType) : ""; | |
| 3416 rstr = (_rChild) ? ((_rChild->_internalop) ? | |
| 3417 _rChild->_internalop : _rChild->_opType) : ""; | |
| 3418 len += (int)strlen(lstr) + (int)strlen(rstr); | |
| 3419 subtree = (char *)malloc(len); | |
| 3420 sprintf(subtree,"_%s_%s_%s", _opType, lstr, rstr); | |
| 3421 // Hash the subtree string in _internalOps; if a name exists, use it | |
| 3422 iop = (char *)_AD._internalOps[subtree]; | |
| 3423 // Else create a unique name, and add it to the hash table | |
| 3424 if (iop == NULL) { | |
| 3425 iop = subtree; | |
| 3426 _AD._internalOps.Insert(subtree, iop); | |
| 3427 _AD._internalOpNames.addName(iop); | |
| 3428 _AD._internalMatch.Insert(iop, this); | |
| 3429 } | |
| 3430 // Add the internal operand name to the MatchNode | |
| 3431 _internalop = iop; | |
| 3432 _result = iop; | |
| 3433 } | |
| 3434 | |
| 3435 | |
| 3436 void MatchNode::dump() { | |
| 3437 output(stderr); | |
| 3438 } | |
| 3439 | |
| 3440 void MatchNode::output(FILE *fp) { | |
| 3441 if (_lChild==0 && _rChild==0) { | |
| 3442 fprintf(fp," %s",_name); // operand | |
| 3443 } | |
| 3444 else { | |
| 3445 fprintf(fp," (%s ",_name); // " (opcodeName " | |
| 3446 if(_lChild) _lChild->output(fp); // left operand | |
| 3447 if(_rChild) _rChild->output(fp); // right operand | |
| 3448 fprintf(fp,")"); // ")" | |
| 3449 } | |
| 3450 } | |
| 3451 | |
| 3452 int MatchNode::needs_ideal_memory_edge(FormDict &globals) const { | |
| 3453 static const char *needs_ideal_memory_list[] = { | |
|
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|
3454 "StoreI","StoreL","StoreP","StoreN","StoreNKlass","StoreD","StoreF" , |
| 0 | 3455 "StoreB","StoreC","Store" ,"StoreFP", |
| 6849 | 3456 "LoadI", "LoadL", "LoadP" ,"LoadN", "LoadD" ,"LoadF" , |
|
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|
3457 "LoadB" , "LoadUB", "LoadUS" ,"LoadS" ,"Load" , |
|
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|
3458 "StoreVector", "LoadVector", |
|
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|
3459 "LoadRange", "LoadKlass", "LoadNKlass", "LoadL_unaligned", "LoadD_unaligned", |
| 6143 | 3460 "LoadPLocked", |
|
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|
3461 "StorePConditional", "StoreIConditional", "StoreLConditional", |
|
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|
3462 "CompareAndSwapI", "CompareAndSwapL", "CompareAndSwapP", "CompareAndSwapN", |
| 0 | 3463 "StoreCM", |
|
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|
3464 "ClearArray", |
|
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|
3465 "GetAndAddI", "GetAndSetI", "GetAndSetP", |
|
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|
3466 "GetAndAddL", "GetAndSetL", "GetAndSetN", |
| 0 | 3467 }; |
| 3468 int cnt = sizeof(needs_ideal_memory_list)/sizeof(char*); | |
| 3854 | 3469 if( strcmp(_opType,"PrefetchRead")==0 || |
| 3470 strcmp(_opType,"PrefetchWrite")==0 || | |
| 3471 strcmp(_opType,"PrefetchAllocation")==0 ) | |
| 0 | 3472 return 1; |
| 3473 if( _lChild ) { | |
| 3474 const char *opType = _lChild->_opType; | |
| 3475 for( int i=0; i<cnt; i++ ) | |
| 3476 if( strcmp(opType,needs_ideal_memory_list[i]) == 0 ) | |
| 3477 return 1; | |
| 3478 if( _lChild->needs_ideal_memory_edge(globals) ) | |
| 3479 return 1; | |
| 3480 } | |
| 3481 if( _rChild ) { | |
| 3482 const char *opType = _rChild->_opType; | |
| 3483 for( int i=0; i<cnt; i++ ) | |
| 3484 if( strcmp(opType,needs_ideal_memory_list[i]) == 0 ) | |
| 3485 return 1; | |
| 3486 if( _rChild->needs_ideal_memory_edge(globals) ) | |
| 3487 return 1; | |
| 3488 } | |
| 3489 | |
| 3490 return 0; | |
| 3491 } | |
| 3492 | |
| 3493 // TRUE if defines a derived oop, and so needs a base oop edge present | |
| 3494 // post-matching. | |
| 3495 int MatchNode::needs_base_oop_edge() const { | |
| 3496 if( !strcmp(_opType,"AddP") ) return 1; | |
| 3497 if( strcmp(_opType,"Set") ) return 0; | |
| 3498 return !strcmp(_rChild->_opType,"AddP"); | |
| 3499 } | |
| 3500 | |
| 3501 int InstructForm::needs_base_oop_edge(FormDict &globals) const { | |
| 3502 if( is_simple_chain_rule(globals) ) { | |
| 3503 const char *src = _matrule->_rChild->_opType; | |
| 3504 OperandForm *src_op = globals[src]->is_operand(); | |
| 3505 assert( src_op, "Not operand class of chain rule" ); | |
| 3506 return src_op->_matrule ? src_op->_matrule->needs_base_oop_edge() : 0; | |
| 3507 } // Else check instruction | |
| 3508 | |
| 3509 return _matrule ? _matrule->needs_base_oop_edge() : 0; | |
| 3510 } | |
| 3511 | |
| 3512 | |
| 3513 //-------------------------cisc spilling methods------------------------------- | |
| 3514 // helper routines and methods for detecting cisc-spilling instructions | |
| 3515 //-------------------------cisc_spill_merge------------------------------------ | |
| 3516 int MatchNode::cisc_spill_merge(int left_spillable, int right_spillable) { | |
| 3517 int cisc_spillable = Maybe_cisc_spillable; | |
| 3518 | |
| 3519 // Combine results of left and right checks | |
| 3520 if( (left_spillable == Maybe_cisc_spillable) && (right_spillable == Maybe_cisc_spillable) ) { | |
| 3521 // neither side is spillable, nor prevents cisc spilling | |
| 3522 cisc_spillable = Maybe_cisc_spillable; | |
| 3523 } | |
| 3524 else if( (left_spillable == Maybe_cisc_spillable) && (right_spillable > Maybe_cisc_spillable) ) { | |
| 3525 // right side is spillable | |
| 3526 cisc_spillable = right_spillable; | |
| 3527 } | |
| 3528 else if( (right_spillable == Maybe_cisc_spillable) && (left_spillable > Maybe_cisc_spillable) ) { | |
| 3529 // left side is spillable | |
| 3530 cisc_spillable = left_spillable; | |
| 3531 } | |
| 3532 else if( (left_spillable == Not_cisc_spillable) || (right_spillable == Not_cisc_spillable) ) { | |
| 3533 // left or right prevents cisc spilling this instruction | |
| 3534 cisc_spillable = Not_cisc_spillable; | |
| 3535 } | |
| 3536 else { | |
| 3537 // Only allow one to spill | |
| 3538 cisc_spillable = Not_cisc_spillable; | |
| 3539 } | |
| 3540 | |
| 3541 return cisc_spillable; | |
| 3542 } | |
| 3543 | |
| 3544 //-------------------------root_ops_match-------------------------------------- | |
| 3545 bool static root_ops_match(FormDict &globals, const char *op1, const char *op2) { | |
| 3546 // Base Case: check that the current operands/operations match | |
| 3547 assert( op1, "Must have op's name"); | |
| 3548 assert( op2, "Must have op's name"); | |
| 3549 const Form *form1 = globals[op1]; | |
| 3550 const Form *form2 = globals[op2]; | |
| 3551 | |
| 3552 return (form1 == form2); | |
| 3553 } | |
| 3554 | |
|
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3555 //-------------------------cisc_spill_match_node------------------------------- |
| 0 | 3556 // Recursively check two MatchRules for legal conversion via cisc-spilling |
|
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|
3557 int MatchNode::cisc_spill_match(FormDict& globals, RegisterForm* registers, MatchNode* mRule2, const char* &operand, const char* ®_type) { |
| 0 | 3558 int cisc_spillable = Maybe_cisc_spillable; |
| 3559 int left_spillable = Maybe_cisc_spillable; | |
| 3560 int right_spillable = Maybe_cisc_spillable; | |
| 3561 | |
| 3562 // Check that each has same number of operands at this level | |
| 3563 if( (_lChild && !(mRule2->_lChild)) || (_rChild && !(mRule2->_rChild)) ) | |
| 3564 return Not_cisc_spillable; | |
| 3565 | |
| 3566 // Base Case: check that the current operands/operations match | |
| 3567 // or are CISC spillable | |
| 3568 assert( _opType, "Must have _opType"); | |
| 3569 assert( mRule2->_opType, "Must have _opType"); | |
| 3570 const Form *form = globals[_opType]; | |
| 3571 const Form *form2 = globals[mRule2->_opType]; | |
| 3572 if( form == form2 ) { | |
| 3573 cisc_spillable = Maybe_cisc_spillable; | |
| 3574 } else { | |
| 3575 const InstructForm *form2_inst = form2 ? form2->is_instruction() : NULL; | |
| 3576 const char *name_left = mRule2->_lChild ? mRule2->_lChild->_opType : NULL; | |
| 3577 const char *name_right = mRule2->_rChild ? mRule2->_rChild->_opType : NULL; | |
| 624 | 3578 DataType data_type = Form::none; |
| 3579 if (form->is_operand()) { | |
| 3580 // Make sure the loadX matches the type of the reg | |
| 3581 data_type = form->ideal_to_Reg_type(form->is_operand()->ideal_type(globals)); | |
| 3582 } | |
| 0 | 3583 // Detect reg vs (loadX memory) |
| 3584 if( form->is_cisc_reg(globals) | |
| 3585 && form2_inst | |
| 624 | 3586 && data_type != Form::none |
| 3587 && (is_load_from_memory(mRule2->_opType) == data_type) // reg vs. (load memory) | |
| 0 | 3588 && (name_left != NULL) // NOT (load) |
| 3589 && (name_right == NULL) ) { // NOT (load memory foo) | |
| 3590 const Form *form2_left = name_left ? globals[name_left] : NULL; | |
| 3591 if( form2_left && form2_left->is_cisc_mem(globals) ) { | |
| 3592 cisc_spillable = Is_cisc_spillable; | |
| 3593 operand = _name; | |
| 3594 reg_type = _result; | |
| 3595 return Is_cisc_spillable; | |
| 3596 } else { | |
| 3597 cisc_spillable = Not_cisc_spillable; | |
| 3598 } | |
| 3599 } | |
| 3600 // Detect reg vs memory | |
| 3601 else if( form->is_cisc_reg(globals) && form2->is_cisc_mem(globals) ) { | |
| 3602 cisc_spillable = Is_cisc_spillable; | |
| 3603 operand = _name; | |
| 3604 reg_type = _result; | |
| 3605 return Is_cisc_spillable; | |
| 3606 } else { | |
| 3607 cisc_spillable = Not_cisc_spillable; | |
| 3608 } | |
| 3609 } | |
| 3610 | |
| 3611 // If cisc is still possible, check rest of tree | |
| 3612 if( cisc_spillable == Maybe_cisc_spillable ) { | |
| 3613 // Check that each has same number of operands at this level | |
| 3614 if( (_lChild && !(mRule2->_lChild)) || (_rChild && !(mRule2->_rChild)) ) return Not_cisc_spillable; | |
| 3615 | |
| 3616 // Check left operands | |
| 3617 if( (_lChild == NULL) && (mRule2->_lChild == NULL) ) { | |
| 3618 left_spillable = Maybe_cisc_spillable; | |
| 3619 } else { | |
| 3620 left_spillable = _lChild->cisc_spill_match(globals, registers, mRule2->_lChild, operand, reg_type); | |
| 3621 } | |
| 3622 | |
| 3623 // Check right operands | |
| 3624 if( (_rChild == NULL) && (mRule2->_rChild == NULL) ) { | |
| 3625 right_spillable = Maybe_cisc_spillable; | |
| 3626 } else { | |
| 3627 right_spillable = _rChild->cisc_spill_match(globals, registers, mRule2->_rChild, operand, reg_type); | |
| 3628 } | |
| 3629 | |
| 3630 // Combine results of left and right checks | |
| 3631 cisc_spillable = cisc_spill_merge(left_spillable, right_spillable); | |
| 3632 } | |
| 3633 | |
| 3634 return cisc_spillable; | |
| 3635 } | |
| 3636 | |
|
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3637 //---------------------------cisc_spill_match_rule------------------------------ |
| 0 | 3638 // Recursively check two MatchRules for legal conversion via cisc-spilling |
| 3639 // This method handles the root of Match tree, | |
| 3640 // general recursive checks done in MatchNode | |
|
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|
3641 int MatchRule::matchrule_cisc_spill_match(FormDict& globals, RegisterForm* registers, |
|
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3642 MatchRule* mRule2, const char* &operand, |
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3643 const char* ®_type) { |
| 0 | 3644 int cisc_spillable = Maybe_cisc_spillable; |
| 3645 int left_spillable = Maybe_cisc_spillable; | |
| 3646 int right_spillable = Maybe_cisc_spillable; | |
| 3647 | |
| 3648 // Check that each sets a result | |
| 3649 if( !(sets_result() && mRule2->sets_result()) ) return Not_cisc_spillable; | |
| 3650 // Check that each has same number of operands at this level | |
| 3651 if( (_lChild && !(mRule2->_lChild)) || (_rChild && !(mRule2->_rChild)) ) return Not_cisc_spillable; | |
| 3652 | |
| 3653 // Check left operands: at root, must be target of 'Set' | |
| 3654 if( (_lChild == NULL) || (mRule2->_lChild == NULL) ) { | |
| 3655 left_spillable = Not_cisc_spillable; | |
| 3656 } else { | |
| 3657 // Do not support cisc-spilling instruction's target location | |
| 3658 if( root_ops_match(globals, _lChild->_opType, mRule2->_lChild->_opType) ) { | |
| 3659 left_spillable = Maybe_cisc_spillable; | |
| 3660 } else { | |
| 3661 left_spillable = Not_cisc_spillable; | |
| 3662 } | |
| 3663 } | |
| 3664 | |
| 3665 // Check right operands: recursive walk to identify reg->mem operand | |
| 3666 if( (_rChild == NULL) && (mRule2->_rChild == NULL) ) { | |
| 3667 right_spillable = Maybe_cisc_spillable; | |
| 3668 } else { | |
| 3669 right_spillable = _rChild->cisc_spill_match(globals, registers, mRule2->_rChild, operand, reg_type); | |
| 3670 } | |
| 3671 | |
| 3672 // Combine results of left and right checks | |
| 3673 cisc_spillable = cisc_spill_merge(left_spillable, right_spillable); | |
| 3674 | |
| 3675 return cisc_spillable; | |
| 3676 } | |
| 3677 | |
| 3678 //----------------------------- equivalent ------------------------------------ | |
| 3679 // Recursively check to see if two match rules are equivalent. | |
| 3680 // This rule handles the root. | |
|
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3681 bool MatchRule::equivalent(FormDict &globals, MatchNode *mRule2) { |
| 0 | 3682 // Check that each sets a result |
| 3683 if (sets_result() != mRule2->sets_result()) { | |
| 3684 return false; | |
| 3685 } | |
| 3686 | |
| 3687 // Check that the current operands/operations match | |
| 3688 assert( _opType, "Must have _opType"); | |
| 3689 assert( mRule2->_opType, "Must have _opType"); | |
| 3690 const Form *form = globals[_opType]; | |
| 3691 const Form *form2 = globals[mRule2->_opType]; | |
| 3692 if( form != form2 ) { | |
| 3693 return false; | |
| 3694 } | |
| 3695 | |
| 3696 if (_lChild ) { | |
| 3697 if( !_lChild->equivalent(globals, mRule2->_lChild) ) | |
| 3698 return false; | |
| 3699 } else if (mRule2->_lChild) { | |
| 3700 return false; // I have NULL left child, mRule2 has non-NULL left child. | |
| 3701 } | |
| 3702 | |
| 3703 if (_rChild ) { | |
| 3704 if( !_rChild->equivalent(globals, mRule2->_rChild) ) | |
| 3705 return false; | |
| 3706 } else if (mRule2->_rChild) { | |
| 3707 return false; // I have NULL right child, mRule2 has non-NULL right child. | |
| 3708 } | |
| 3709 | |
| 3710 // We've made it through the gauntlet. | |
| 3711 return true; | |
| 3712 } | |
| 3713 | |
| 3714 //----------------------------- equivalent ------------------------------------ | |
| 3715 // Recursively check to see if two match rules are equivalent. | |
| 3716 // This rule handles the operands. | |
| 3717 bool MatchNode::equivalent(FormDict &globals, MatchNode *mNode2) { | |
| 3718 if( !mNode2 ) | |
| 3719 return false; | |
| 3720 | |
| 3721 // Check that the current operands/operations match | |
| 3722 assert( _opType, "Must have _opType"); | |
| 3723 assert( mNode2->_opType, "Must have _opType"); | |
| 3724 const Form *form = globals[_opType]; | |
| 3725 const Form *form2 = globals[mNode2->_opType]; | |
| 3839 | 3726 if( form != form2 ) { |
| 3727 return false; | |
| 3728 } | |
| 3729 | |
| 3730 // Check that their children also match | |
| 3731 if (_lChild ) { | |
| 3732 if( !_lChild->equivalent(globals, mNode2->_lChild) ) | |
| 3733 return false; | |
| 3734 } else if (mNode2->_lChild) { | |
| 3735 return false; // I have NULL left child, mNode2 has non-NULL left child. | |
| 3736 } | |
| 3737 | |
| 3738 if (_rChild ) { | |
| 3739 if( !_rChild->equivalent(globals, mNode2->_rChild) ) | |
| 3740 return false; | |
| 3741 } else if (mNode2->_rChild) { | |
| 3742 return false; // I have NULL right child, mNode2 has non-NULL right child. | |
| 3743 } | |
| 3744 | |
| 3745 // We've made it through the gauntlet. | |
| 3746 return true; | |
| 0 | 3747 } |
| 3748 | |
| 3749 //-------------------------- has_commutative_op ------------------------------- | |
| 3750 // Recursively check for commutative operations with subtree operands | |
| 3751 // which could be swapped. | |
| 3752 void MatchNode::count_commutative_op(int& count) { | |
| 3753 static const char *commut_op_list[] = { | |
| 3754 "AddI","AddL","AddF","AddD", | |
| 3755 "AndI","AndL", | |
| 3756 "MaxI","MinI", | |
| 3757 "MulI","MulL","MulF","MulD", | |
| 3758 "OrI" ,"OrL" , | |
| 3759 "XorI","XorL" | |
| 3760 }; | |
| 3761 int cnt = sizeof(commut_op_list)/sizeof(char*); | |
| 3762 | |
| 3763 if( _lChild && _rChild && (_lChild->_lChild || _rChild->_lChild) ) { | |
| 3764 // Don't swap if right operand is an immediate constant. | |
| 3765 bool is_const = false; | |
| 3766 if( _rChild->_lChild == NULL && _rChild->_rChild == NULL ) { | |
| 3767 FormDict &globals = _AD.globalNames(); | |
| 3768 const Form *form = globals[_rChild->_opType]; | |
| 3769 if ( form ) { | |
| 3770 OperandForm *oper = form->is_operand(); | |
| 3771 if( oper && oper->interface_type(globals) == Form::constant_interface ) | |
| 3772 is_const = true; | |
| 3773 } | |
| 3774 } | |
| 3775 if( !is_const ) { | |
| 3776 for( int i=0; i<cnt; i++ ) { | |
| 3777 if( strcmp(_opType, commut_op_list[i]) == 0 ) { | |
| 3778 count++; | |
| 3779 _commutative_id = count; // id should be > 0 | |
| 3780 break; | |
| 3781 } | |
| 3782 } | |
| 3783 } | |
| 3784 } | |
| 3785 if( _lChild ) | |
| 3786 _lChild->count_commutative_op(count); | |
| 3787 if( _rChild ) | |
| 3788 _rChild->count_commutative_op(count); | |
| 3789 } | |
| 3790 | |
| 3791 //-------------------------- swap_commutative_op ------------------------------ | |
| 3792 // Recursively swap specified commutative operation with subtree operands. | |
| 3793 void MatchNode::swap_commutative_op(bool atroot, int id) { | |
| 3794 if( _commutative_id == id ) { // id should be > 0 | |
| 3795 assert(_lChild && _rChild && (_lChild->_lChild || _rChild->_lChild ), | |
| 3796 "not swappable operation"); | |
| 3797 MatchNode* tmp = _lChild; | |
| 3798 _lChild = _rChild; | |
| 3799 _rChild = tmp; | |
| 3800 // Don't exit here since we need to build internalop. | |
| 3801 } | |
| 3802 | |
| 3803 bool is_set = ( strcmp(_opType, "Set") == 0 ); | |
| 3804 if( _lChild ) | |
| 3805 _lChild->swap_commutative_op(is_set, id); | |
| 3806 if( _rChild ) | |
| 3807 _rChild->swap_commutative_op(is_set, id); | |
| 3808 | |
| 3809 // If not the root, reduce this subtree to an internal operand | |
| 3810 if( !atroot && (_lChild || _rChild) ) { | |
| 3811 build_internalop(); | |
| 3812 } | |
| 3813 } | |
| 3814 | |
| 3815 //-------------------------- swap_commutative_op ------------------------------ | |
| 3816 // Recursively swap specified commutative operation with subtree operands. | |
|
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3817 void MatchRule::matchrule_swap_commutative_op(const char* instr_ident, int count, int& match_rules_cnt) { |
| 0 | 3818 assert(match_rules_cnt < 100," too many match rule clones"); |
| 3819 // Clone | |
| 3820 MatchRule* clone = new MatchRule(_AD, this); | |
| 3821 // Swap operands of commutative operation | |
| 3822 ((MatchNode*)clone)->swap_commutative_op(true, count); | |
| 3823 char* buf = (char*) malloc(strlen(instr_ident) + 4); | |
| 3824 sprintf(buf, "%s_%d", instr_ident, match_rules_cnt++); | |
| 3825 clone->_result = buf; | |
| 3826 | |
| 3827 clone->_next = this->_next; | |
| 3828 this-> _next = clone; | |
| 3829 if( (--count) > 0 ) { | |
|
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|
3830 this-> matchrule_swap_commutative_op(instr_ident, count, match_rules_cnt); |
|
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|
3831 clone->matchrule_swap_commutative_op(instr_ident, count, match_rules_cnt); |
| 0 | 3832 } |
| 3833 } | |
| 3834 | |
| 3835 //------------------------------MatchRule-------------------------------------- | |
| 3836 MatchRule::MatchRule(ArchDesc &ad) | |
| 3837 : MatchNode(ad), _depth(0), _construct(NULL), _numchilds(0) { | |
| 3838 _next = NULL; | |
| 3839 } | |
| 3840 | |
| 3841 MatchRule::MatchRule(ArchDesc &ad, MatchRule* mRule) | |
| 3842 : MatchNode(ad, *mRule, 0), _depth(mRule->_depth), | |
| 3843 _construct(mRule->_construct), _numchilds(mRule->_numchilds) { | |
| 3844 _next = NULL; | |
| 3845 } | |
| 3846 | |
| 3847 MatchRule::MatchRule(ArchDesc &ad, MatchNode* mroot, int depth, char *cnstr, | |
| 3848 int numleaves) | |
| 3849 : MatchNode(ad,*mroot), _depth(depth), _construct(cnstr), | |
| 3850 _numchilds(0) { | |
| 3851 _next = NULL; | |
| 3852 mroot->_lChild = NULL; | |
| 3853 mroot->_rChild = NULL; | |
| 3854 delete mroot; | |
| 3855 _numleaves = numleaves; | |
| 3856 _numchilds = (_lChild ? 1 : 0) + (_rChild ? 1 : 0); | |
| 3857 } | |
| 3858 MatchRule::~MatchRule() { | |
| 3859 } | |
| 3860 | |
| 3861 // Recursive call collecting info on top-level operands, not transitive. | |
| 3862 // Implementation does not modify state of internal structures. | |
|
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3863 void MatchRule::append_components(FormDict& locals, ComponentList& components, bool def_flag) const { |
| 0 | 3864 assert (_name != NULL, "MatchNode::build_components encountered empty node\n"); |
| 3865 | |
| 3866 MatchNode::append_components(locals, components, | |
| 3867 false /* not necessarily a def */); | |
| 3868 } | |
| 3869 | |
| 3870 // Recursive call on all operands' match rules in my match rule. | |
| 3871 // Implementation does not modify state of internal structures since they | |
| 3872 // can be shared. | |
| 3873 // The MatchNode that is called first treats its | |
| 3874 bool MatchRule::base_operand(uint &position0, FormDict &globals, | |
| 3875 const char *&result, const char * &name, | |
| 3876 const char * &opType)const{ | |
| 3877 uint position = position0; | |
| 3878 | |
| 3879 return (MatchNode::base_operand( position, globals, result, name, opType)); | |
| 3880 } | |
| 3881 | |
| 3882 | |
| 3883 bool MatchRule::is_base_register(FormDict &globals) const { | |
| 3884 uint position = 1; | |
| 3885 const char *result = NULL; | |
| 3886 const char *name = NULL; | |
| 3887 const char *opType = NULL; | |
| 3888 if (!base_operand(position, globals, result, name, opType)) { | |
| 3889 position = 0; | |
| 3890 if( base_operand(position, globals, result, name, opType) && | |
| 3891 (strcmp(opType,"RegI")==0 || | |
| 3892 strcmp(opType,"RegP")==0 || | |
|
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|
3893 strcmp(opType,"RegN")==0 || |
| 0 | 3894 strcmp(opType,"RegL")==0 || |
| 3895 strcmp(opType,"RegF")==0 || | |
| 3896 strcmp(opType,"RegD")==0 || | |
|
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3897 strcmp(opType,"VecS")==0 || |
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3898 strcmp(opType,"VecD")==0 || |
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3899 strcmp(opType,"VecX")==0 || |
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|
3900 strcmp(opType,"VecY")==0 || |
| 0 | 3901 strcmp(opType,"Reg" )==0) ) { |
| 3902 return 1; | |
| 3903 } | |
| 3904 } | |
| 3905 return 0; | |
| 3906 } | |
| 3907 | |
| 3908 Form::DataType MatchRule::is_base_constant(FormDict &globals) const { | |
| 3909 uint position = 1; | |
| 3910 const char *result = NULL; | |
| 3911 const char *name = NULL; | |
| 3912 const char *opType = NULL; | |
| 3913 if (!base_operand(position, globals, result, name, opType)) { | |
| 3914 position = 0; | |
| 3915 if (base_operand(position, globals, result, name, opType)) { | |
| 3916 return ideal_to_const_type(opType); | |
| 3917 } | |
| 3918 } | |
| 3919 return Form::none; | |
| 3920 } | |
| 3921 | |
| 3922 bool MatchRule::is_chain_rule(FormDict &globals) const { | |
| 3923 | |
| 3924 // Check for chain rule, and do not generate a match list for it | |
| 3925 if ((_lChild == NULL) && (_rChild == NULL) ) { | |
| 3926 const Form *form = globals[_opType]; | |
| 3927 // If this is ideal, then it is a base match, not a chain rule. | |
| 3928 if ( form && form->is_operand() && (!form->ideal_only())) { | |
| 3929 return true; | |
| 3930 } | |
| 3931 } | |
| 3932 // Check for "Set" form of chain rule, and do not generate a match list | |
| 3933 if (_rChild) { | |
| 3934 const char *rch = _rChild->_opType; | |
| 3935 const Form *form = globals[rch]; | |
| 3936 if ((!strcmp(_opType,"Set") && | |
| 3937 ((form) && form->is_operand()))) { | |
| 3938 return true; | |
| 3939 } | |
| 3940 } | |
| 3941 return false; | |
| 3942 } | |
| 3943 | |
| 3944 int MatchRule::is_ideal_copy() const { | |
| 3945 if( _rChild ) { | |
| 3946 const char *opType = _rChild->_opType; | |
|
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|
3947 #if 1 |
|
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3948 if( strcmp(opType,"CastIP")==0 ) |
|
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|
3949 return 1; |
|
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|
3950 #else |
| 0 | 3951 if( strcmp(opType,"CastII")==0 ) |
| 3952 return 1; | |
| 3953 // Do not treat *CastPP this way, because it | |
| 3954 // may transfer a raw pointer to an oop. | |
| 3955 // If the register allocator were to coalesce this | |
| 3956 // into a single LRG, the GC maps would be incorrect. | |
| 3957 //if( strcmp(opType,"CastPP")==0 ) | |
| 3958 // return 1; | |
| 3959 //if( strcmp(opType,"CheckCastPP")==0 ) | |
| 3960 // return 1; | |
| 3961 // | |
| 3962 // Do not treat CastX2P or CastP2X this way, because | |
| 3963 // raw pointers and int types are treated differently | |
| 3964 // when saving local & stack info for safepoints in | |
| 3965 // Output(). | |
| 3966 //if( strcmp(opType,"CastX2P")==0 ) | |
| 3967 // return 1; | |
| 3968 //if( strcmp(opType,"CastP2X")==0 ) | |
| 3969 // return 1; | |
|
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|
3970 #endif |
| 0 | 3971 } |
| 3972 if( is_chain_rule(_AD.globalNames()) && | |
| 3973 _lChild && strncmp(_lChild->_opType,"stackSlot",9)==0 ) | |
| 3974 return 1; | |
| 3975 return 0; | |
| 3976 } | |
| 3977 | |
| 3978 | |
| 3979 int MatchRule::is_expensive() const { | |
| 3980 if( _rChild ) { | |
| 3981 const char *opType = _rChild->_opType; | |
| 3982 if( strcmp(opType,"AtanD")==0 || | |
| 3983 strcmp(opType,"CosD")==0 || | |
| 3984 strcmp(opType,"DivD")==0 || | |
| 3985 strcmp(opType,"DivF")==0 || | |
| 3986 strcmp(opType,"DivI")==0 || | |
| 3987 strcmp(opType,"ExpD")==0 || | |
| 3988 strcmp(opType,"LogD")==0 || | |
| 3989 strcmp(opType,"Log10D")==0 || | |
| 3990 strcmp(opType,"ModD")==0 || | |
| 3991 strcmp(opType,"ModF")==0 || | |
| 3992 strcmp(opType,"ModI")==0 || | |
| 3993 strcmp(opType,"PowD")==0 || | |
| 3994 strcmp(opType,"SinD")==0 || | |
| 3995 strcmp(opType,"SqrtD")==0 || | |
| 3996 strcmp(opType,"TanD")==0 || | |
| 3997 strcmp(opType,"ConvD2F")==0 || | |
| 3998 strcmp(opType,"ConvD2I")==0 || | |
| 3999 strcmp(opType,"ConvD2L")==0 || | |
| 4000 strcmp(opType,"ConvF2D")==0 || | |
| 4001 strcmp(opType,"ConvF2I")==0 || | |
| 4002 strcmp(opType,"ConvF2L")==0 || | |
| 4003 strcmp(opType,"ConvI2D")==0 || | |
| 4004 strcmp(opType,"ConvI2F")==0 || | |
| 4005 strcmp(opType,"ConvI2L")==0 || | |
| 4006 strcmp(opType,"ConvL2D")==0 || | |
| 4007 strcmp(opType,"ConvL2F")==0 || | |
| 4008 strcmp(opType,"ConvL2I")==0 || | |
| 247 | 4009 strcmp(opType,"DecodeN")==0 || |
| 4010 strcmp(opType,"EncodeP")==0 || | |
|
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4011 strcmp(opType,"EncodePKlass")==0 || |
|
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4012 strcmp(opType,"DecodeNKlass")==0 || |
| 0 | 4013 strcmp(opType,"RoundDouble")==0 || |
| 4014 strcmp(opType,"RoundFloat")==0 || | |
| 4015 strcmp(opType,"ReverseBytesI")==0 || | |
| 4016 strcmp(opType,"ReverseBytesL")==0 || | |
|
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4017 strcmp(opType,"ReverseBytesUS")==0 || |
|
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4018 strcmp(opType,"ReverseBytesS")==0 || |
|
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4019 strcmp(opType,"ReplicateB")==0 || |
|
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4020 strcmp(opType,"ReplicateS")==0 || |
|
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4021 strcmp(opType,"ReplicateI")==0 || |
|
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4022 strcmp(opType,"ReplicateL")==0 || |
|
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4023 strcmp(opType,"ReplicateF")==0 || |
|
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4024 strcmp(opType,"ReplicateD")==0 || |
| 0 | 4025 0 /* 0 to line up columns nicely */ ) |
| 4026 return 1; | |
| 4027 } | |
| 4028 return 0; | |
| 4029 } | |
| 4030 | |
| 4031 bool MatchRule::is_ideal_if() const { | |
| 4032 if( !_opType ) return false; | |
| 4033 return | |
| 4034 !strcmp(_opType,"If" ) || | |
| 4035 !strcmp(_opType,"CountedLoopEnd"); | |
| 4036 } | |
| 4037 | |
| 4038 bool MatchRule::is_ideal_fastlock() const { | |
| 4039 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { | |
| 4040 return (strcmp(_rChild->_opType,"FastLock") == 0); | |
| 4041 } | |
| 4042 return false; | |
| 4043 } | |
| 4044 | |
| 4045 bool MatchRule::is_ideal_membar() const { | |
| 4046 if( !_opType ) return false; | |
| 4047 return | |
| 14909 | 4048 !strcmp(_opType,"MemBarAcquire" ) || |
| 4049 !strcmp(_opType,"MemBarRelease" ) || | |
|
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|
4050 !strcmp(_opType,"MemBarAcquireLock") || |
|
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|
4051 !strcmp(_opType,"MemBarReleaseLock") || |
| 14909 | 4052 !strcmp(_opType,"MemBarVolatile" ) || |
| 4053 !strcmp(_opType,"MemBarCPUOrder" ) || | |
| 4054 !strcmp(_opType,"MemBarStoreStore" ); | |
| 0 | 4055 } |
| 4056 | |
| 4057 bool MatchRule::is_ideal_loadPC() const { | |
| 4058 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { | |
| 4059 return (strcmp(_rChild->_opType,"LoadPC") == 0); | |
| 4060 } | |
| 4061 return false; | |
| 4062 } | |
| 4063 | |
| 4064 bool MatchRule::is_ideal_box() const { | |
| 4065 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { | |
| 4066 return (strcmp(_rChild->_opType,"Box") == 0); | |
| 4067 } | |
| 4068 return false; | |
| 4069 } | |
| 4070 | |
| 4071 bool MatchRule::is_ideal_goto() const { | |
| 4072 bool ideal_goto = false; | |
| 4073 | |
| 4074 if( _opType && (strcmp(_opType,"Goto") == 0) ) { | |
| 4075 ideal_goto = true; | |
| 4076 } | |
| 4077 return ideal_goto; | |
| 4078 } | |
| 4079 | |
| 4080 bool MatchRule::is_ideal_jump() const { | |
| 4081 if( _opType ) { | |
| 4082 if( !strcmp(_opType,"Jump") ) | |
| 4083 return true; | |
| 4084 } | |
| 4085 return false; | |
| 4086 } | |
| 4087 | |
| 4088 bool MatchRule::is_ideal_bool() const { | |
| 4089 if( _opType ) { | |
| 4090 if( !strcmp(_opType,"Bool") ) | |
| 4091 return true; | |
| 4092 } | |
| 4093 return false; | |
| 4094 } | |
| 4095 | |
| 4096 | |
| 4097 Form::DataType MatchRule::is_ideal_load() const { | |
| 4098 Form::DataType ideal_load = Form::none; | |
| 4099 | |
| 4100 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { | |
| 4101 const char *opType = _rChild->_opType; | |
| 4102 ideal_load = is_load_from_memory(opType); | |
| 4103 } | |
| 4104 | |
| 4105 return ideal_load; | |
| 4106 } | |
| 4107 | |
|
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4108 bool MatchRule::is_vector() const { |
|
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|
4109 static const char *vector_list[] = { |
|
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|
4110 "AddVB","AddVS","AddVI","AddVL","AddVF","AddVD", |
|
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|
4111 "SubVB","SubVS","SubVI","SubVL","SubVF","SubVD", |
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4112 "MulVS","MulVI","MulVF","MulVD", |
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4113 "DivVF","DivVD", |
|
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|
4114 "AndV" ,"XorV" ,"OrV", |
| 6823 | 4115 "LShiftCntV","RShiftCntV", |
|
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|
4116 "LShiftVB","LShiftVS","LShiftVI","LShiftVL", |
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|
4117 "RShiftVB","RShiftVS","RShiftVI","RShiftVL", |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4118 "URShiftVB","URShiftVS","URShiftVI","URShiftVL", |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4119 "ReplicateB","ReplicateS","ReplicateI","ReplicateL","ReplicateF","ReplicateD", |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4120 "LoadVector","StoreVector", |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4121 // Next are not supported currently. |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4122 "PackB","PackS","PackI","PackL","PackF","PackD","Pack2L","Pack2D", |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4123 "ExtractB","ExtractUB","ExtractC","ExtractS","ExtractI","ExtractL","ExtractF","ExtractD" |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4124 }; |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4125 int cnt = sizeof(vector_list)/sizeof(char*); |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4126 if (_rChild) { |
|
6179
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4127 const char *opType = _rChild->_opType; |
|
6802
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4128 for (int i=0; i<cnt; i++) |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4129 if (strcmp(opType,vector_list[i]) == 0) |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4130 return true; |
|
6179
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4131 } |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4132 return false; |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4133 } |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4134 |
| 0 | 4135 |
|
855
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4136 bool MatchRule::skip_antidep_check() const { |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4137 // Some loads operate on what is effectively immutable memory so we |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4138 // should skip the anti dep computations. For some of these nodes |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4139 // the rewritable field keeps the anti dep logic from triggering but |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4140 // for certain kinds of LoadKlass it does not since they are |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4141 // actually reading memory which could be rewritten by the runtime, |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4142 // though never by generated code. This disables it uniformly for |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4143 // the nodes that behave like this: LoadKlass, LoadNKlass and |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4144 // LoadRange. |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4145 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4146 const char *opType = _rChild->_opType; |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4147 if (strcmp("LoadKlass", opType) == 0 || |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4148 strcmp("LoadNKlass", opType) == 0 || |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4149 strcmp("LoadRange", opType) == 0) { |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4150 return true; |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4151 } |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4152 } |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4153 |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4154 return false; |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4155 } |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4156 |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4157 |
| 0 | 4158 Form::DataType MatchRule::is_ideal_store() const { |
| 4159 Form::DataType ideal_store = Form::none; | |
| 4160 | |
| 4161 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { | |
| 4162 const char *opType = _rChild->_opType; | |
| 4163 ideal_store = is_store_to_memory(opType); | |
| 4164 } | |
| 4165 | |
| 4166 return ideal_store; | |
| 4167 } | |
| 4168 | |
| 4169 | |
| 4170 void MatchRule::dump() { | |
| 4171 output(stderr); | |
| 4172 } | |
| 4173 | |
| 6850 | 4174 // Write just one line. |
| 4175 void MatchRule::output_short(FILE *fp) { | |
| 0 | 4176 fprintf(fp,"MatchRule: ( %s",_name); |
| 4177 if (_lChild) _lChild->output(fp); | |
| 4178 if (_rChild) _rChild->output(fp); | |
| 6850 | 4179 fprintf(fp," )"); |
| 4180 } | |
| 4181 | |
| 4182 void MatchRule::output(FILE *fp) { | |
| 4183 output_short(fp); | |
| 4184 fprintf(fp,"\n nesting depth = %d\n", _depth); | |
| 0 | 4185 if (_result) fprintf(fp," Result Type = %s", _result); |
| 4186 fprintf(fp,"\n"); | |
| 4187 } | |
| 4188 | |
| 4189 //------------------------------Attribute-------------------------------------- | |
| 4190 Attribute::Attribute(char *id, char* val, int type) | |
| 4191 : _ident(id), _val(val), _atype(type) { | |
| 4192 } | |
| 4193 Attribute::~Attribute() { | |
| 4194 } | |
| 4195 | |
| 4196 int Attribute::int_val(ArchDesc &ad) { | |
| 4197 // Make sure it is an integer constant: | |
| 4198 int result = 0; | |
| 4199 if (!_val || !ADLParser::is_int_token(_val, result)) { | |
| 4200 ad.syntax_err(0, "Attribute %s must have an integer value: %s", | |
| 4201 _ident, _val ? _val : ""); | |
| 4202 } | |
| 4203 return result; | |
| 4204 } | |
| 4205 | |
| 4206 void Attribute::dump() { | |
| 4207 output(stderr); | |
| 4208 } // Debug printer | |
| 4209 | |
| 4210 // Write to output files | |
| 4211 void Attribute::output(FILE *fp) { | |
| 4212 fprintf(fp,"Attribute: %s %s\n", (_ident?_ident:""), (_val?_val:"")); | |
| 4213 } | |
| 4214 | |
| 4215 //------------------------------FormatRule---------------------------------- | |
| 4216 FormatRule::FormatRule(char *temp) | |
| 4217 : _temp(temp) { | |
| 4218 } | |
| 4219 FormatRule::~FormatRule() { | |
| 4220 } | |
| 4221 | |
| 4222 void FormatRule::dump() { | |
| 4223 output(stderr); | |
| 4224 } | |
| 4225 | |
| 4226 // Write to output files | |
| 4227 void FormatRule::output(FILE *fp) { | |
| 4228 fprintf(fp,"\nFormat Rule: \n%s", (_temp?_temp:"")); | |
| 4229 fprintf(fp,"\n"); | |
| 4230 } |