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annotate src/share/vm/adlc/formsopt.hpp @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | dbbe28fc66b5 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1998, 2009, 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 // FORMSOPT.HPP - ADL Parser Target Specific Optimization Forms Classes | |
| 26 | |
| 27 // Class List | |
| 28 class Form; | |
| 29 class InstructForm; | |
| 30 class OperandForm; | |
| 31 class OpClassForm; | |
| 32 class AttributeForm; | |
| 33 class RegisterForm; | |
| 34 class PipelineForm; | |
| 35 class SourceForm; | |
| 36 class EncodeForm; | |
| 37 class Component; | |
| 38 class Constraint; | |
| 39 class Predicate; | |
| 40 class MatchRule; | |
| 41 class Attribute; | |
| 42 class Effect; | |
| 43 class ExpandRule; | |
| 44 class RewriteRule; | |
| 45 class ConstructRule; | |
| 46 class FormatRule; | |
| 47 class Peephole; | |
| 48 class PeepMatch; | |
| 49 class PeepConstraint; | |
| 50 class EncClass; | |
| 51 class Interface; | |
| 52 class RegInterface; | |
| 53 class ConstInterface; | |
| 54 class MemInterface; | |
| 55 class CondInterface; | |
| 56 class Opcode; | |
| 57 class InsEncode; | |
| 58 class RegDef; | |
| 59 class RegClass; | |
| 60 class AllocClass; | |
| 61 class ResourceForm; | |
| 62 class PipeClassForm; | |
| 63 class PipeClassOperandForm; | |
| 64 class PipeClassResourceForm; | |
| 65 class PeepMatch; | |
| 66 class PeepConstraint; | |
| 67 class PeepReplace; | |
| 68 class MatchList; | |
| 69 | |
| 70 class ArchDesc; | |
| 71 | |
| 72 //==============================Register Allocation============================ | |
| 73 //------------------------------RegisterForm----------------------------------- | |
| 74 class RegisterForm : public Form { | |
| 75 private: | |
| 76 AllocClass *_current_ac; // State used by iter_RegDefs() | |
| 77 | |
| 78 public: | |
| 79 // Public Data | |
| 80 NameList _rdefs; // List of register definition names | |
| 81 Dict _regDef; // map register name to RegDef* | |
| 82 | |
| 83 NameList _rclasses; // List of register class names | |
| 84 Dict _regClass; // map register class name to RegClass* | |
| 85 | |
| 86 NameList _aclasses; // List of allocation class names | |
| 87 Dict _allocClass; // Dictionary of allocation classes | |
| 88 | |
| 89 static int _reg_ctr; // Register counter | |
| 90 static int RegMask_Size(); // Compute RegMask size | |
| 91 | |
| 92 // Public Methods | |
| 93 RegisterForm(); | |
| 94 ~RegisterForm(); | |
| 95 | |
| 96 void addRegDef(char *regName, char *callingConv, char *c_conv, | |
| 97 char * idealtype, char *encoding, char* concreteName); | |
| 98 RegClass *addRegClass(const char *className); | |
| 99 AllocClass *addAllocClass(char *allocName); | |
| 100 void addSpillRegClass(); | |
| 101 | |
| 102 // Provide iteration over all register definitions | |
| 103 // in the order used by the register allocator | |
| 104 void reset_RegDefs(); | |
| 105 RegDef *iter_RegDefs(); | |
| 106 RegDef *getRegDef (const char *regName); | |
| 107 | |
| 108 RegClass *getRegClass(const char *className); | |
| 109 | |
| 110 // Return register mask, compressed chunk and register # | |
| 111 uint reg_mask(char *register_class); | |
| 112 | |
| 113 // Check that register classes are compatible with chunks | |
| 114 bool verify(); | |
| 115 | |
| 116 void dump(); // Debug printer | |
| 117 void output(FILE *fp); // Write info to output files | |
| 118 }; | |
| 119 | |
| 120 //------------------------------RegDef----------------------------------------- | |
| 121 class RegDef : public Form { | |
| 122 public: | |
| 123 // Public Data | |
| 124 const char *_regname; // ADLC (Opto) Register name | |
| 125 const char *_callconv; // Calling convention | |
| 126 const char *_c_conv; // Native calling convention, 'C' | |
| 127 const char *_idealtype; // Ideal Type for register save/restore | |
| 128 const char *_concrete; // concrete register name | |
| 129 | |
| 130 private: | |
| 131 const char *_register_encode; // The register encoding | |
| 132 // The chunk and register mask bits define info for register allocation | |
| 133 uint32 _register_num; // Which register am I | |
| 134 | |
| 135 public: | |
| 136 // Public Methods | |
| 137 RegDef(char *regname, char *callconv, char *c_conv, | |
| 138 char *idealtype, char *encoding, char *concrete); | |
| 139 ~RegDef(); // Destructor | |
| 140 | |
| 141 // Interface to define/redefine the register number | |
| 142 void set_register_num(uint32 new_register_num); | |
| 143 | |
| 144 // Bit pattern used for generating machine code | |
| 145 const char *register_encode() const; | |
| 146 // Register number used in machine-independent code | |
| 147 uint32 register_num() const; | |
| 148 | |
| 149 void dump(); // Debug printer | |
| 150 void output(FILE *fp); // Write info to output files | |
| 151 }; | |
| 152 | |
| 153 //------------------------------RegClass--------------------------------------- | |
| 154 class RegClass : public Form { | |
| 155 public: | |
| 156 // Public Data | |
| 157 const char *_classid; // Name of class | |
| 158 NameList _regDefs; // List of registers in class | |
| 159 Dict _regDef; // Dictionary of registers in class | |
| 160 bool _stack_or_reg; // Allowed on any stack slot | |
| 161 | |
| 162 // Public Methods | |
| 163 RegClass(const char *classid);// Constructor | |
| 164 | |
| 165 void addReg(RegDef *regDef); // Add a register to this class | |
| 166 | |
| 167 uint size() const; // Number of registers in class | |
| 168 int regs_in_word( int wordnum, bool stack_also ); | |
| 169 | |
| 170 const RegDef *get_RegDef(const char *regDef_name) const; | |
| 171 | |
| 172 // Returns the lowest numbered register in the mask. | |
| 173 const RegDef* find_first_elem(); | |
| 174 | |
| 175 // Iteration support | |
| 176 void reset(); // Reset the following two iterators | |
| 177 RegDef *RegDef_iter(); // which move jointly, | |
| 178 const char *rd_name_iter(); // invoking either advances both. | |
| 179 | |
| 180 void dump(); // Debug printer | |
| 181 void output(FILE *fp); // Write info to output files | |
| 182 }; | |
| 183 | |
| 184 //------------------------------AllocClass------------------------------------- | |
| 185 class AllocClass : public Form { | |
| 186 private: | |
| 187 | |
| 188 public: | |
| 189 // Public Data | |
| 190 char *_classid; // Name of class | |
| 191 NameList _regDefs; // List of registers in class | |
| 192 Dict _regDef; // Dictionary of registers in class | |
| 193 | |
| 194 // Public Methods | |
| 195 AllocClass(char *classid); // Constructor | |
| 196 | |
| 197 void addReg(RegDef *regDef); // Add a register to this class | |
| 198 uint size() {return _regDef.Size();} // Number of registers in class | |
| 199 | |
| 200 void dump(); // Debug printer | |
| 201 void output(FILE *fp); // Write info to output files | |
| 202 }; | |
| 203 | |
| 204 | |
| 205 //==============================Frame Handling================================ | |
| 206 //------------------------------FrameForm------------------------------------- | |
| 207 class FrameForm : public Form { | |
| 208 private: | |
| 209 | |
| 210 public: | |
| 211 // Public Data | |
| 212 bool _direction; // Direction of stack growth | |
| 213 char *_sync_stack_slots; | |
| 214 char *_inline_cache_reg; | |
| 215 char *_interpreter_method_oop_reg; | |
| 216 char *_interpreter_frame_pointer_reg; | |
| 217 char *_cisc_spilling_operand_name; | |
| 218 char *_frame_pointer; | |
| 219 char *_c_frame_pointer; | |
| 220 char *_alignment; | |
| 221 bool _return_addr_loc; | |
| 222 bool _c_return_addr_loc; | |
| 223 char *_return_addr; | |
| 224 char *_c_return_addr; | |
| 225 char *_in_preserve_slots; | |
| 226 char *_varargs_C_out_slots_killed; | |
| 227 char *_calling_convention; | |
| 228 char *_c_calling_convention; | |
| 229 char *_return_value; | |
| 230 char *_c_return_value; | |
| 231 | |
| 232 // Public Methods | |
| 233 FrameForm(); | |
| 234 ~FrameForm(); | |
| 235 | |
| 236 void dump(); // Debug printer | |
| 237 void output(FILE *fp); // Write info to output files | |
| 238 }; | |
| 239 | |
| 240 | |
| 241 //==============================Scheduling===================================== | |
| 242 //------------------------------PipelineForm----------------------------------- | |
| 243 class PipelineForm : public Form { | |
| 244 private: | |
| 245 | |
| 246 public: | |
| 247 // Public Data | |
| 248 NameList _reslist; // List of pipeline resources | |
| 249 FormDict _resdict; // Resource Name -> ResourceForm mapping | |
| 250 int _rescount; // Number of resources (ignores OR cases) | |
| 251 int _maxcycleused; // Largest cycle used relative to beginning of instruction | |
| 252 | |
| 253 NameList _stages; // List of pipeline stages on architecture | |
| 254 int _stagecnt; // Number of stages listed | |
| 255 | |
| 256 NameList _classlist; // List of pipeline classes | |
| 257 FormDict _classdict; // Class Name -> PipeClassForm mapping | |
| 258 int _classcnt; // Number of classes | |
| 259 | |
| 260 NameList _noplist; // List of NOP instructions | |
| 261 int _nopcnt; // Number of nop instructions | |
| 262 | |
| 263 bool _variableSizeInstrs; // Indicates if this architecture has variable sized instructions | |
| 264 bool _branchHasDelaySlot; // Indicates that branches have delay slot instructions | |
| 265 int _maxInstrsPerBundle; // Indicates the maximum number of instructions for ILP | |
| 266 int _maxBundlesPerCycle; // Indicates the maximum number of bundles for ILP | |
| 267 int _instrUnitSize; // The minimum instruction unit size, in bytes | |
| 268 int _bundleUnitSize; // The bundle unit size, in bytes | |
| 269 int _instrFetchUnitSize; // The size of the I-fetch unit, in bytes [must be power of 2] | |
| 270 int _instrFetchUnits; // The number of I-fetch units processed per cycle | |
| 271 | |
| 272 // Public Methods | |
| 273 PipelineForm(); | |
| 274 ~PipelineForm(); | |
| 275 | |
| 276 void dump(); // Debug printer | |
| 277 void output(FILE *fp); // Write info to output files | |
| 278 }; | |
| 279 | |
| 280 //------------------------------ResourceForm----------------------------------- | |
| 281 class ResourceForm : public Form { | |
| 282 public: | |
| 283 unsigned mask() const { return _resmask; }; | |
| 284 | |
| 285 private: | |
| 286 // Public Data | |
| 287 unsigned _resmask; // Resource Mask (OR of resource specifier bits) | |
| 288 | |
| 289 public: | |
| 290 | |
| 291 // Virtual Methods | |
| 292 virtual ResourceForm *is_resource() const; | |
| 293 | |
| 294 // Public Methods | |
| 295 ResourceForm(unsigned resmask); // Constructor | |
| 296 ~ResourceForm(); // Destructor | |
| 297 | |
| 298 void dump(); // Debug printer | |
| 299 void output(FILE *fp); // Write info to output files | |
| 300 }; | |
| 301 | |
| 302 //------------------------------PipeClassOperandForm----------------------------- | |
| 303 class PipeClassOperandForm : public Form { | |
| 304 private: | |
| 305 | |
| 306 public: | |
| 307 // Public Data | |
| 308 const char *_stage; // Name of Stage | |
| 309 unsigned _iswrite; // Read or Write | |
| 310 unsigned _more_instrs; // Additional Instructions | |
| 311 | |
| 312 // Public Methods | |
| 313 PipeClassOperandForm(const char *stage, unsigned iswrite, unsigned more_instrs) | |
| 314 : _stage(stage) | |
| 315 , _iswrite(iswrite) | |
| 316 , _more_instrs(more_instrs) | |
| 317 {}; | |
| 318 | |
| 319 ~PipeClassOperandForm() {}; // Destructor | |
| 320 | |
| 321 bool isWrite() const { return _iswrite != 0; } | |
| 322 | |
| 323 void dump(); // Debug printer | |
| 324 void output(FILE *fp); // Write info to output files | |
| 325 }; | |
| 326 | |
| 327 //------------------------------PipeClassResourceForm-------------------------- | |
| 328 class PipeClassResourceForm : public Form { | |
| 329 private: | |
| 330 | |
| 331 public: | |
| 332 // Public Data | |
| 333 const char *_resource; // Resource | |
| 334 const char *_stage; // Stage the resource is used in | |
| 335 int _cycles; // Number of cycles the resource is used | |
| 336 | |
| 337 // Public Methods | |
| 338 PipeClassResourceForm(const char *resource, const char *stage, int cycles) | |
| 339 // Constructor | |
| 340 : _resource(resource) | |
| 341 , _stage(stage) | |
| 342 , _cycles(cycles) | |
| 343 {}; | |
| 344 | |
| 345 ~PipeClassResourceForm() {}; // Destructor | |
| 346 | |
| 347 void dump(); // Debug printer | |
| 348 void output(FILE *fp); // Write info to output files | |
| 349 }; | |
| 350 | |
| 351 //------------------------------PipeClassForm---------------------------------- | |
| 352 class PipeClassForm : public Form { | |
| 353 private: | |
| 354 | |
| 355 public: | |
| 356 | |
| 357 // Public Data | |
| 358 const char *_ident; // Name of class | |
| 359 int _num; // Used in name of MachNode subclass | |
| 360 NameList _parameters; // Locally defined names | |
| 361 FormDict _localNames; // Table of operands & their types | |
| 362 FormDict _localUsage; // Table of operand usage | |
| 363 FormList _resUsage; // List of resource usage | |
| 364 NameList _instructs; // List of instructions and machine nodes that use this pipeline class | |
| 365 bool _has_fixed_latency; // Always takes this number of cycles | |
| 366 int _fixed_latency; // Always takes this number of cycles | |
| 367 int _instruction_count; // Number of instructions in first bundle | |
| 368 bool _has_multiple_bundles; // Indicates if 1 or multiple bundles | |
| 369 bool _has_branch_delay_slot; // Has branch delay slot as last instruction | |
| 370 bool _force_serialization; // This node serializes relative to surrounding nodes | |
| 371 bool _may_have_no_code; // This node may generate no code based on register allocation | |
| 372 | |
| 373 // Virtual Methods | |
| 374 virtual PipeClassForm *is_pipeclass() const; | |
| 375 | |
| 376 // Public Methods | |
| 377 PipeClassForm(const char *id, int num); | |
| 378 // Constructor | |
| 379 ~PipeClassForm(); // Destructor | |
| 380 | |
| 381 bool hasFixedLatency() { return _has_fixed_latency; } | |
| 382 int fixedLatency() { return _fixed_latency; } | |
| 383 | |
| 384 void setFixedLatency(int fixed_latency) { _has_fixed_latency = 1; _fixed_latency = fixed_latency; } | |
| 385 | |
| 386 void setInstructionCount(int i) { _instruction_count = i; } | |
| 387 void setMultipleBundles(bool b) { _has_multiple_bundles = b; } | |
| 388 void setBranchDelay(bool s) { _has_branch_delay_slot = s; } | |
| 389 void setForceSerialization(bool s) { _force_serialization = s; } | |
| 390 void setMayHaveNoCode(bool s) { _may_have_no_code = s; } | |
| 391 | |
| 392 int InstructionCount() const { return _instruction_count; } | |
| 393 bool hasMultipleBundles() const { return _has_multiple_bundles; } | |
| 394 bool hasBranchDelay() const { return _has_branch_delay_slot; } | |
| 395 bool forceSerialization() const { return _force_serialization; } | |
| 396 bool mayHaveNoCode() const { return _may_have_no_code; } | |
| 397 | |
| 398 void dump(); // Debug printer | |
| 399 void output(FILE *fp); // Write info to output files | |
| 400 }; | |
| 401 | |
| 402 | |
| 403 //==============================Peephole Optimization========================== | |
| 404 //------------------------------Peephole--------------------------------------- | |
| 405 class Peephole : public Form { | |
| 406 private: | |
| 407 static int _peephole_counter;// Incremented by each peephole rule parsed | |
| 408 int _peephole_number;// Remember my order in architecture description | |
| 409 PeepMatch *_match; // Instruction pattern to match | |
| 410 PeepConstraint *_constraint; // List of additional constraints | |
| 411 PeepReplace *_replace; // Instruction pattern to substitute in | |
| 412 | |
| 413 Peephole *_next; | |
| 414 | |
| 415 public: | |
| 416 // Public Methods | |
| 417 Peephole(); | |
| 418 ~Peephole(); | |
| 419 | |
| 420 // Append a peephole rule with the same root instruction | |
| 421 void append_peephole(Peephole *next_peephole); | |
| 422 | |
| 423 // Store the components of this peephole rule | |
| 424 void add_match(PeepMatch *only_one_match); | |
| 425 void append_constraint(PeepConstraint *next_constraint); | |
| 426 void add_replace(PeepReplace *only_one_replacement); | |
| 427 | |
| 428 // Access the components of this peephole rule | |
| 429 int peephole_number() { return _peephole_number; } | |
| 430 PeepMatch *match() { return _match; } | |
| 431 PeepConstraint *constraints() { return _constraint; } | |
| 432 PeepReplace *replacement() { return _replace; } | |
| 433 Peephole *next() { return _next; } | |
| 434 | |
| 435 void dump(); // Debug printer | |
| 436 void output(FILE *fp); // Write info to output files | |
| 437 }; | |
| 438 | |
| 439 | |
| 440 class PeepMatch : public Form { | |
| 441 private: | |
| 442 char *_rule; | |
| 443 // NameList _depth; // Depth of this instruction | |
| 444 NameList _parent; | |
| 445 NameList _position; | |
| 446 NameList _instrs; // List of instructions in match rule | |
| 447 NameList _input; // input position in parent's instruction | |
| 448 int _max_position; | |
| 449 | |
| 450 public: | |
| 451 // Public Methods | |
| 452 PeepMatch(char *rule); | |
| 453 ~PeepMatch(); | |
| 454 | |
| 455 // Insert info into the match-rule | |
| 456 void add_instruction(int parent, int position, const char *name, int input); | |
| 457 | |
| 458 // Access info about instructions in the peep-match rule | |
| 459 int max_position(); | |
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460 const char *instruction_name(int position); |
| 0 | 461 // Iterate through all info on matched instructions |
| 462 void reset(); | |
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463 void next_instruction(int &parent, int &position, const char* &name, int &input); |
| 0 | 464 // 'true' if current position in iteration is a placeholder, not matched. |
| 465 bool is_placeholder(); | |
| 466 | |
| 467 void dump(); | |
| 468 void output(FILE *fp); | |
| 469 }; | |
| 470 | |
| 471 | |
| 472 class PeepConstraint : public Form { | |
| 473 private: | |
| 474 PeepConstraint *_next; // Additional constraints ANDed together | |
| 475 | |
| 476 public: | |
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477 const int _left_inst; |
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478 const char* _left_op; |
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479 const char* _relation; |
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480 const int _right_inst; |
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481 const char* _right_op; |
| 0 | 482 |
| 483 public: | |
| 484 // Public Methods | |
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485 PeepConstraint(int left_inst, char* left_op, char* relation, |
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486 int right_inst, char* right_op); |
| 0 | 487 ~PeepConstraint(); |
| 488 | |
| 489 // Check if constraints use instruction at position | |
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490 bool constrains_instruction(int position); |
| 0 | 491 |
| 492 // Add another constraint | |
| 493 void append(PeepConstraint *next_peep_constraint); | |
| 494 // Access the next constraint in the list | |
| 495 PeepConstraint *next(); | |
| 496 | |
| 497 void dump(); | |
| 498 void output(FILE *fp); | |
| 499 }; | |
| 500 | |
| 501 | |
| 502 class PeepReplace : public Form { | |
| 503 private: | |
| 504 char *_rule; | |
| 505 NameList _instruction; | |
| 506 NameList _operand_inst_num; | |
| 507 NameList _operand_op_name; | |
| 508 | |
| 509 public: | |
| 510 | |
| 511 // Public Methods | |
| 512 PeepReplace(char *rule); | |
| 513 ~PeepReplace(); | |
| 514 | |
| 515 // Add contents of peepreplace | |
| 516 void add_instruction(char *root); | |
| 517 void add_operand( int inst_num, char *inst_operand ); | |
| 518 | |
| 519 // Access contents of peepreplace | |
| 520 void reset(); | |
| 521 void next_instruction(const char * &root); | |
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522 void next_operand(int &inst_num, const char * &inst_operand ); |
| 0 | 523 |
| 524 // Utilities | |
| 525 void dump(); | |
| 526 void output(FILE *fp); | |
| 527 }; | |
| 528 | |
| 529 | |
| 530 class PeepChild : public Form { | |
| 531 public: | |
| 532 const int _inst_num; // Number of instruction (-1 if only named) | |
| 533 const char *_inst_op; // Instruction's operand, NULL if number == -1 | |
| 534 const char *_inst_name; // Name of the instruction | |
| 535 | |
| 536 public: | |
| 537 PeepChild(char *inst_name) | |
| 538 : _inst_num(-1), _inst_op(NULL), _inst_name(inst_name) {}; | |
| 539 PeepChild(int inst_num, char *inst_op, char *inst_name) | |
| 540 : _inst_num(inst_num), _inst_op(inst_op), _inst_name(inst_name) {}; | |
| 541 ~PeepChild(); | |
| 542 | |
| 543 bool use_leaf_operand() { return _inst_num != -1; }; | |
| 544 bool generate_an_instruction() { return _inst_num == -1; } | |
| 545 | |
| 546 void dump(); | |
| 547 void output(FILE *fp); | |
| 548 }; |