Mercurial > hg > truffle
annotate src/share/vm/adlc/formsopt.hpp @ 4121:db2e64ca2d5a
7090968: Allow adlc register class to depend on runtime conditions
Summary: allow reg_class definition as a function.
Reviewed-by: kvn, never
| author | roland |
|---|---|
| date | Tue, 22 Nov 2011 09:45:57 +0100 |
| parents | f95d63e2154a |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1998, 2010, 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 | |
| 1972 | 25 #ifndef SHARE_VM_ADLC_FORMSOPT_HPP |
| 26 #define SHARE_VM_ADLC_FORMSOPT_HPP | |
| 27 | |
| 0 | 28 // FORMSOPT.HPP - ADL Parser Target Specific Optimization Forms Classes |
| 29 | |
| 30 // Class List | |
| 31 class Form; | |
| 32 class InstructForm; | |
| 33 class OperandForm; | |
| 34 class OpClassForm; | |
| 35 class AttributeForm; | |
| 36 class RegisterForm; | |
| 37 class PipelineForm; | |
| 38 class SourceForm; | |
| 39 class EncodeForm; | |
| 40 class Component; | |
| 41 class Constraint; | |
| 42 class Predicate; | |
| 43 class MatchRule; | |
| 44 class Attribute; | |
| 45 class Effect; | |
| 46 class ExpandRule; | |
| 47 class RewriteRule; | |
| 48 class ConstructRule; | |
| 49 class FormatRule; | |
| 50 class Peephole; | |
| 51 class PeepMatch; | |
| 52 class PeepConstraint; | |
| 53 class EncClass; | |
| 54 class Interface; | |
| 55 class RegInterface; | |
| 56 class ConstInterface; | |
| 57 class MemInterface; | |
| 58 class CondInterface; | |
| 59 class Opcode; | |
| 60 class InsEncode; | |
| 61 class RegDef; | |
| 62 class RegClass; | |
| 63 class AllocClass; | |
| 64 class ResourceForm; | |
| 65 class PipeClassForm; | |
| 66 class PipeClassOperandForm; | |
| 67 class PipeClassResourceForm; | |
| 68 class PeepMatch; | |
| 69 class PeepConstraint; | |
| 70 class PeepReplace; | |
| 71 class MatchList; | |
| 72 | |
| 73 class ArchDesc; | |
| 74 | |
| 75 //==============================Register Allocation============================ | |
| 76 //------------------------------RegisterForm----------------------------------- | |
| 77 class RegisterForm : public Form { | |
| 78 private: | |
| 79 AllocClass *_current_ac; // State used by iter_RegDefs() | |
| 80 | |
| 81 public: | |
| 82 // Public Data | |
| 83 NameList _rdefs; // List of register definition names | |
| 84 Dict _regDef; // map register name to RegDef* | |
| 85 | |
| 86 NameList _rclasses; // List of register class names | |
| 87 Dict _regClass; // map register class name to RegClass* | |
| 88 | |
| 89 NameList _aclasses; // List of allocation class names | |
| 90 Dict _allocClass; // Dictionary of allocation classes | |
| 91 | |
| 92 static int _reg_ctr; // Register counter | |
| 93 static int RegMask_Size(); // Compute RegMask size | |
| 94 | |
| 95 // Public Methods | |
| 96 RegisterForm(); | |
| 97 ~RegisterForm(); | |
| 98 | |
| 99 void addRegDef(char *regName, char *callingConv, char *c_conv, | |
| 100 char * idealtype, char *encoding, char* concreteName); | |
| 101 RegClass *addRegClass(const char *className); | |
| 102 AllocClass *addAllocClass(char *allocName); | |
| 103 void addSpillRegClass(); | |
| 104 | |
| 105 // Provide iteration over all register definitions | |
| 106 // in the order used by the register allocator | |
| 107 void reset_RegDefs(); | |
| 108 RegDef *iter_RegDefs(); | |
| 109 RegDef *getRegDef (const char *regName); | |
| 110 | |
| 111 RegClass *getRegClass(const char *className); | |
| 112 | |
| 113 // Return register mask, compressed chunk and register # | |
| 114 uint reg_mask(char *register_class); | |
| 115 | |
| 116 // Check that register classes are compatible with chunks | |
| 117 bool verify(); | |
| 118 | |
| 119 void dump(); // Debug printer | |
| 120 void output(FILE *fp); // Write info to output files | |
| 121 }; | |
| 122 | |
| 123 //------------------------------RegDef----------------------------------------- | |
| 124 class RegDef : public Form { | |
| 125 public: | |
| 126 // Public Data | |
| 127 const char *_regname; // ADLC (Opto) Register name | |
| 128 const char *_callconv; // Calling convention | |
| 129 const char *_c_conv; // Native calling convention, 'C' | |
| 130 const char *_idealtype; // Ideal Type for register save/restore | |
| 131 const char *_concrete; // concrete register name | |
| 132 | |
| 133 private: | |
| 134 const char *_register_encode; // The register encoding | |
| 135 // The chunk and register mask bits define info for register allocation | |
| 136 uint32 _register_num; // Which register am I | |
| 137 | |
| 138 public: | |
| 139 // Public Methods | |
| 140 RegDef(char *regname, char *callconv, char *c_conv, | |
| 141 char *idealtype, char *encoding, char *concrete); | |
| 142 ~RegDef(); // Destructor | |
| 143 | |
| 144 // Interface to define/redefine the register number | |
| 145 void set_register_num(uint32 new_register_num); | |
| 146 | |
| 147 // Bit pattern used for generating machine code | |
| 148 const char *register_encode() const; | |
| 149 // Register number used in machine-independent code | |
| 150 uint32 register_num() const; | |
| 151 | |
| 152 void dump(); // Debug printer | |
| 153 void output(FILE *fp); // Write info to output files | |
| 154 }; | |
| 155 | |
| 156 //------------------------------RegClass--------------------------------------- | |
| 157 class RegClass : public Form { | |
| 158 public: | |
| 159 // Public Data | |
| 160 const char *_classid; // Name of class | |
| 161 NameList _regDefs; // List of registers in class | |
| 162 Dict _regDef; // Dictionary of registers in class | |
| 163 bool _stack_or_reg; // Allowed on any stack slot | |
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164 char* _user_defined; |
| 0 | 165 |
| 166 // Public Methods | |
| 167 RegClass(const char *classid);// Constructor | |
| 168 | |
| 169 void addReg(RegDef *regDef); // Add a register to this class | |
| 170 | |
| 171 uint size() const; // Number of registers in class | |
| 172 int regs_in_word( int wordnum, bool stack_also ); | |
| 173 | |
| 174 const RegDef *get_RegDef(const char *regDef_name) const; | |
| 175 | |
| 176 // Returns the lowest numbered register in the mask. | |
| 177 const RegDef* find_first_elem(); | |
| 178 | |
| 179 // Iteration support | |
| 180 void reset(); // Reset the following two iterators | |
| 181 RegDef *RegDef_iter(); // which move jointly, | |
| 182 const char *rd_name_iter(); // invoking either advances both. | |
| 183 | |
| 184 void dump(); // Debug printer | |
| 185 void output(FILE *fp); // Write info to output files | |
| 186 }; | |
| 187 | |
| 188 //------------------------------AllocClass------------------------------------- | |
| 189 class AllocClass : public Form { | |
| 190 private: | |
| 191 | |
| 192 public: | |
| 193 // Public Data | |
| 194 char *_classid; // Name of class | |
| 195 NameList _regDefs; // List of registers in class | |
| 196 Dict _regDef; // Dictionary of registers in class | |
| 197 | |
| 198 // Public Methods | |
| 199 AllocClass(char *classid); // Constructor | |
| 200 | |
| 201 void addReg(RegDef *regDef); // Add a register to this class | |
| 202 uint size() {return _regDef.Size();} // Number of registers in class | |
| 203 | |
| 204 void dump(); // Debug printer | |
| 205 void output(FILE *fp); // Write info to output files | |
| 206 }; | |
| 207 | |
| 208 | |
| 209 //==============================Frame Handling================================ | |
| 210 //------------------------------FrameForm------------------------------------- | |
| 211 class FrameForm : public Form { | |
| 212 private: | |
| 213 | |
| 214 public: | |
| 215 // Public Data | |
| 216 bool _direction; // Direction of stack growth | |
| 217 char *_sync_stack_slots; | |
| 218 char *_inline_cache_reg; | |
| 219 char *_interpreter_method_oop_reg; | |
| 220 char *_interpreter_frame_pointer_reg; | |
| 221 char *_cisc_spilling_operand_name; | |
| 222 char *_frame_pointer; | |
| 223 char *_c_frame_pointer; | |
| 224 char *_alignment; | |
| 225 bool _return_addr_loc; | |
| 226 bool _c_return_addr_loc; | |
| 227 char *_return_addr; | |
| 228 char *_c_return_addr; | |
| 229 char *_in_preserve_slots; | |
| 230 char *_varargs_C_out_slots_killed; | |
| 231 char *_calling_convention; | |
| 232 char *_c_calling_convention; | |
| 233 char *_return_value; | |
| 234 char *_c_return_value; | |
| 235 | |
| 236 // Public Methods | |
| 237 FrameForm(); | |
| 238 ~FrameForm(); | |
| 239 | |
| 240 void dump(); // Debug printer | |
| 241 void output(FILE *fp); // Write info to output files | |
| 242 }; | |
| 243 | |
| 244 | |
| 245 //==============================Scheduling===================================== | |
| 246 //------------------------------PipelineForm----------------------------------- | |
| 247 class PipelineForm : public Form { | |
| 248 private: | |
| 249 | |
| 250 public: | |
| 251 // Public Data | |
| 252 NameList _reslist; // List of pipeline resources | |
| 253 FormDict _resdict; // Resource Name -> ResourceForm mapping | |
| 254 int _rescount; // Number of resources (ignores OR cases) | |
| 255 int _maxcycleused; // Largest cycle used relative to beginning of instruction | |
| 256 | |
| 257 NameList _stages; // List of pipeline stages on architecture | |
| 258 int _stagecnt; // Number of stages listed | |
| 259 | |
| 260 NameList _classlist; // List of pipeline classes | |
| 261 FormDict _classdict; // Class Name -> PipeClassForm mapping | |
| 262 int _classcnt; // Number of classes | |
| 263 | |
| 264 NameList _noplist; // List of NOP instructions | |
| 265 int _nopcnt; // Number of nop instructions | |
| 266 | |
| 267 bool _variableSizeInstrs; // Indicates if this architecture has variable sized instructions | |
| 268 bool _branchHasDelaySlot; // Indicates that branches have delay slot instructions | |
| 269 int _maxInstrsPerBundle; // Indicates the maximum number of instructions for ILP | |
| 270 int _maxBundlesPerCycle; // Indicates the maximum number of bundles for ILP | |
| 271 int _instrUnitSize; // The minimum instruction unit size, in bytes | |
| 272 int _bundleUnitSize; // The bundle unit size, in bytes | |
| 273 int _instrFetchUnitSize; // The size of the I-fetch unit, in bytes [must be power of 2] | |
| 274 int _instrFetchUnits; // The number of I-fetch units processed per cycle | |
| 275 | |
| 276 // Public Methods | |
| 277 PipelineForm(); | |
| 278 ~PipelineForm(); | |
| 279 | |
| 280 void dump(); // Debug printer | |
| 281 void output(FILE *fp); // Write info to output files | |
| 282 }; | |
| 283 | |
| 284 //------------------------------ResourceForm----------------------------------- | |
| 285 class ResourceForm : public Form { | |
| 286 public: | |
| 287 unsigned mask() const { return _resmask; }; | |
| 288 | |
| 289 private: | |
| 290 // Public Data | |
| 291 unsigned _resmask; // Resource Mask (OR of resource specifier bits) | |
| 292 | |
| 293 public: | |
| 294 | |
| 295 // Virtual Methods | |
| 296 virtual ResourceForm *is_resource() const; | |
| 297 | |
| 298 // Public Methods | |
| 299 ResourceForm(unsigned resmask); // Constructor | |
| 300 ~ResourceForm(); // Destructor | |
| 301 | |
| 302 void dump(); // Debug printer | |
| 303 void output(FILE *fp); // Write info to output files | |
| 304 }; | |
| 305 | |
| 306 //------------------------------PipeClassOperandForm----------------------------- | |
| 307 class PipeClassOperandForm : public Form { | |
| 308 private: | |
| 309 | |
| 310 public: | |
| 311 // Public Data | |
| 312 const char *_stage; // Name of Stage | |
| 313 unsigned _iswrite; // Read or Write | |
| 314 unsigned _more_instrs; // Additional Instructions | |
| 315 | |
| 316 // Public Methods | |
| 317 PipeClassOperandForm(const char *stage, unsigned iswrite, unsigned more_instrs) | |
| 318 : _stage(stage) | |
| 319 , _iswrite(iswrite) | |
| 320 , _more_instrs(more_instrs) | |
| 321 {}; | |
| 322 | |
| 323 ~PipeClassOperandForm() {}; // Destructor | |
| 324 | |
| 325 bool isWrite() const { return _iswrite != 0; } | |
| 326 | |
| 327 void dump(); // Debug printer | |
| 328 void output(FILE *fp); // Write info to output files | |
| 329 }; | |
| 330 | |
| 331 //------------------------------PipeClassResourceForm-------------------------- | |
| 332 class PipeClassResourceForm : public Form { | |
| 333 private: | |
| 334 | |
| 335 public: | |
| 336 // Public Data | |
| 337 const char *_resource; // Resource | |
| 338 const char *_stage; // Stage the resource is used in | |
| 339 int _cycles; // Number of cycles the resource is used | |
| 340 | |
| 341 // Public Methods | |
| 342 PipeClassResourceForm(const char *resource, const char *stage, int cycles) | |
| 343 // Constructor | |
| 344 : _resource(resource) | |
| 345 , _stage(stage) | |
| 346 , _cycles(cycles) | |
| 347 {}; | |
| 348 | |
| 349 ~PipeClassResourceForm() {}; // Destructor | |
| 350 | |
| 351 void dump(); // Debug printer | |
| 352 void output(FILE *fp); // Write info to output files | |
| 353 }; | |
| 354 | |
| 355 //------------------------------PipeClassForm---------------------------------- | |
| 356 class PipeClassForm : public Form { | |
| 357 private: | |
| 358 | |
| 359 public: | |
| 360 | |
| 361 // Public Data | |
| 362 const char *_ident; // Name of class | |
| 363 int _num; // Used in name of MachNode subclass | |
| 364 NameList _parameters; // Locally defined names | |
| 365 FormDict _localNames; // Table of operands & their types | |
| 366 FormDict _localUsage; // Table of operand usage | |
| 367 FormList _resUsage; // List of resource usage | |
| 368 NameList _instructs; // List of instructions and machine nodes that use this pipeline class | |
| 369 bool _has_fixed_latency; // Always takes this number of cycles | |
| 370 int _fixed_latency; // Always takes this number of cycles | |
| 371 int _instruction_count; // Number of instructions in first bundle | |
| 372 bool _has_multiple_bundles; // Indicates if 1 or multiple bundles | |
| 373 bool _has_branch_delay_slot; // Has branch delay slot as last instruction | |
| 374 bool _force_serialization; // This node serializes relative to surrounding nodes | |
| 375 bool _may_have_no_code; // This node may generate no code based on register allocation | |
| 376 | |
| 377 // Virtual Methods | |
| 378 virtual PipeClassForm *is_pipeclass() const; | |
| 379 | |
| 380 // Public Methods | |
| 381 PipeClassForm(const char *id, int num); | |
| 382 // Constructor | |
| 383 ~PipeClassForm(); // Destructor | |
| 384 | |
| 385 bool hasFixedLatency() { return _has_fixed_latency; } | |
| 386 int fixedLatency() { return _fixed_latency; } | |
| 387 | |
| 388 void setFixedLatency(int fixed_latency) { _has_fixed_latency = 1; _fixed_latency = fixed_latency; } | |
| 389 | |
| 390 void setInstructionCount(int i) { _instruction_count = i; } | |
| 391 void setMultipleBundles(bool b) { _has_multiple_bundles = b; } | |
| 392 void setBranchDelay(bool s) { _has_branch_delay_slot = s; } | |
| 393 void setForceSerialization(bool s) { _force_serialization = s; } | |
| 394 void setMayHaveNoCode(bool s) { _may_have_no_code = s; } | |
| 395 | |
| 396 int InstructionCount() const { return _instruction_count; } | |
| 397 bool hasMultipleBundles() const { return _has_multiple_bundles; } | |
| 398 bool hasBranchDelay() const { return _has_branch_delay_slot; } | |
| 399 bool forceSerialization() const { return _force_serialization; } | |
| 400 bool mayHaveNoCode() const { return _may_have_no_code; } | |
| 401 | |
| 402 void dump(); // Debug printer | |
| 403 void output(FILE *fp); // Write info to output files | |
| 404 }; | |
| 405 | |
| 406 | |
| 407 //==============================Peephole Optimization========================== | |
| 408 //------------------------------Peephole--------------------------------------- | |
| 409 class Peephole : public Form { | |
| 410 private: | |
| 411 static int _peephole_counter;// Incremented by each peephole rule parsed | |
| 412 int _peephole_number;// Remember my order in architecture description | |
| 413 PeepMatch *_match; // Instruction pattern to match | |
| 414 PeepConstraint *_constraint; // List of additional constraints | |
| 415 PeepReplace *_replace; // Instruction pattern to substitute in | |
| 416 | |
| 417 Peephole *_next; | |
| 418 | |
| 419 public: | |
| 420 // Public Methods | |
| 421 Peephole(); | |
| 422 ~Peephole(); | |
| 423 | |
| 424 // Append a peephole rule with the same root instruction | |
| 425 void append_peephole(Peephole *next_peephole); | |
| 426 | |
| 427 // Store the components of this peephole rule | |
| 428 void add_match(PeepMatch *only_one_match); | |
| 429 void append_constraint(PeepConstraint *next_constraint); | |
| 430 void add_replace(PeepReplace *only_one_replacement); | |
| 431 | |
| 432 // Access the components of this peephole rule | |
| 433 int peephole_number() { return _peephole_number; } | |
| 434 PeepMatch *match() { return _match; } | |
| 435 PeepConstraint *constraints() { return _constraint; } | |
| 436 PeepReplace *replacement() { return _replace; } | |
| 437 Peephole *next() { return _next; } | |
| 438 | |
| 439 void dump(); // Debug printer | |
| 440 void output(FILE *fp); // Write info to output files | |
| 441 }; | |
| 442 | |
| 443 | |
| 444 class PeepMatch : public Form { | |
| 445 private: | |
| 446 char *_rule; | |
| 447 // NameList _depth; // Depth of this instruction | |
| 448 NameList _parent; | |
| 449 NameList _position; | |
| 450 NameList _instrs; // List of instructions in match rule | |
| 451 NameList _input; // input position in parent's instruction | |
| 452 int _max_position; | |
| 453 | |
| 454 public: | |
| 455 // Public Methods | |
| 456 PeepMatch(char *rule); | |
| 457 ~PeepMatch(); | |
| 458 | |
| 459 // Insert info into the match-rule | |
| 460 void add_instruction(int parent, int position, const char *name, int input); | |
| 461 | |
| 462 // Access info about instructions in the peep-match rule | |
| 463 int max_position(); | |
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464 const char *instruction_name(int position); |
| 0 | 465 // Iterate through all info on matched instructions |
| 466 void reset(); | |
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467 void next_instruction(int &parent, int &position, const char* &name, int &input); |
| 0 | 468 // 'true' if current position in iteration is a placeholder, not matched. |
| 469 bool is_placeholder(); | |
| 470 | |
| 471 void dump(); | |
| 472 void output(FILE *fp); | |
| 473 }; | |
| 474 | |
| 475 | |
| 476 class PeepConstraint : public Form { | |
| 477 private: | |
| 478 PeepConstraint *_next; // Additional constraints ANDed together | |
| 479 | |
| 480 public: | |
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481 const int _left_inst; |
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482 const char* _left_op; |
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483 const char* _relation; |
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484 const int _right_inst; |
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485 const char* _right_op; |
| 0 | 486 |
| 487 public: | |
| 488 // Public Methods | |
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489 PeepConstraint(int left_inst, char* left_op, char* relation, |
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490 int right_inst, char* right_op); |
| 0 | 491 ~PeepConstraint(); |
| 492 | |
| 493 // Check if constraints use instruction at position | |
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494 bool constrains_instruction(int position); |
| 0 | 495 |
| 496 // Add another constraint | |
| 497 void append(PeepConstraint *next_peep_constraint); | |
| 498 // Access the next constraint in the list | |
| 499 PeepConstraint *next(); | |
| 500 | |
| 501 void dump(); | |
| 502 void output(FILE *fp); | |
| 503 }; | |
| 504 | |
| 505 | |
| 506 class PeepReplace : public Form { | |
| 507 private: | |
| 508 char *_rule; | |
| 509 NameList _instruction; | |
| 510 NameList _operand_inst_num; | |
| 511 NameList _operand_op_name; | |
| 512 | |
| 513 public: | |
| 514 | |
| 515 // Public Methods | |
| 516 PeepReplace(char *rule); | |
| 517 ~PeepReplace(); | |
| 518 | |
| 519 // Add contents of peepreplace | |
| 520 void add_instruction(char *root); | |
| 521 void add_operand( int inst_num, char *inst_operand ); | |
| 522 | |
| 523 // Access contents of peepreplace | |
| 524 void reset(); | |
| 525 void next_instruction(const char * &root); | |
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526 void next_operand(int &inst_num, const char * &inst_operand ); |
| 0 | 527 |
| 528 // Utilities | |
| 529 void dump(); | |
| 530 void output(FILE *fp); | |
| 531 }; | |
| 532 | |
| 533 | |
| 534 class PeepChild : public Form { | |
| 535 public: | |
| 536 const int _inst_num; // Number of instruction (-1 if only named) | |
| 537 const char *_inst_op; // Instruction's operand, NULL if number == -1 | |
| 538 const char *_inst_name; // Name of the instruction | |
| 539 | |
| 540 public: | |
| 541 PeepChild(char *inst_name) | |
| 542 : _inst_num(-1), _inst_op(NULL), _inst_name(inst_name) {}; | |
| 543 PeepChild(int inst_num, char *inst_op, char *inst_name) | |
| 544 : _inst_num(inst_num), _inst_op(inst_op), _inst_name(inst_name) {}; | |
| 545 ~PeepChild(); | |
| 546 | |
| 547 bool use_leaf_operand() { return _inst_num != -1; }; | |
| 548 bool generate_an_instruction() { return _inst_num == -1; } | |
| 549 | |
| 550 void dump(); | |
| 551 void output(FILE *fp); | |
| 552 }; | |
| 1972 | 553 |
| 554 #endif // SHARE_VM_ADLC_FORMSOPT_HPP |