Mercurial > hg > truffle
annotate src/share/vm/adlc/formssel.hpp @ 1375:e0a1a502e402 jdk7-b91
Added tag jdk7-b90 for changeset 605c9707a766
| author | mikejwre |
|---|---|
| date | Thu, 22 Apr 2010 16:54:23 -0700 |
| parents | f9094a5e1c8a |
| children | b5fdf39b9749 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright 1998-2009 Sun Microsystems, Inc. All Rights Reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 // FORMSSEL.HPP - ADL Parser Instruction Selection Forms Classes | |
| 26 | |
| 27 // Class List | |
| 28 class Form; | |
| 29 class InstructForm; | |
| 30 class MachNodeForm; | |
| 31 class OperandForm; | |
| 32 class OpClassForm; | |
| 33 class AttributeForm; | |
| 34 class RegisterForm; | |
| 35 class PipelineForm; | |
| 36 class SourceForm; | |
| 37 class EncodeForm; | |
| 38 class Component; | |
| 39 class Constraint; | |
| 40 class Predicate; | |
| 41 class MatchRule; | |
| 42 class Attribute; | |
| 43 class Effect; | |
| 44 class ExpandRule; | |
| 45 class RewriteRule; | |
| 46 class ConstructRule; | |
| 47 class FormatRule; | |
| 48 class Peephole; | |
| 49 class EncClass; | |
| 50 class Interface; | |
| 51 class RegInterface; | |
| 52 class ConstInterface; | |
| 53 class MemInterface; | |
| 54 class CondInterface; | |
| 55 class Opcode; | |
| 56 class InsEncode; | |
| 57 class RegDef; | |
| 58 class RegClass; | |
| 59 class AllocClass; | |
| 60 class ResourceForm; | |
| 61 class PipeDesc; | |
| 62 class PipeClass; | |
| 63 class PeepMatch; | |
| 64 class PeepConstraint; | |
| 65 class PeepReplace; | |
| 66 class MatchList; | |
| 67 | |
| 68 class ArchDesc; | |
| 69 | |
| 70 //==============================Instructions=================================== | |
| 71 //------------------------------InstructForm----------------------------------- | |
| 72 class InstructForm : public Form { | |
| 73 private: | |
| 74 bool _ideal_only; // Not a user-defined instruction | |
| 75 // Members used for tracking CISC-spilling | |
| 76 uint _cisc_spill_operand;// Which operand may cisc-spill | |
| 77 void set_cisc_spill_operand(uint op_index) { _cisc_spill_operand = op_index; } | |
| 78 bool _is_cisc_alternate; | |
| 79 InstructForm *_cisc_spill_alternate;// cisc possible replacement | |
| 80 const char *_cisc_reg_mask_name; | |
| 81 InstructForm *_short_branch_form; | |
| 82 bool _is_short_branch; | |
| 83 uint _alignment; | |
| 84 | |
| 85 public: | |
| 86 // Public Data | |
| 87 const char *_ident; // Name of this instruction | |
| 88 NameList _parameters; // Locally defined names | |
| 89 FormDict _localNames; // Table of operands & their types | |
| 90 MatchRule *_matrule; // Matching rule for this instruction | |
| 91 Opcode *_opcode; // Encoding of the opcode for instruction | |
| 92 char *_size; // Size of instruction | |
| 93 InsEncode *_insencode; // Encoding class instruction belongs to | |
| 94 Attribute *_attribs; // List of Attribute rules | |
| 95 Predicate *_predicate; // Predicate test for this instruction | |
| 96 FormDict _effects; // Dictionary of effect rules | |
| 97 ExpandRule *_exprule; // Expand rule for this instruction | |
| 98 RewriteRule *_rewrule; // Rewrite rule for this instruction | |
| 99 FormatRule *_format; // Format for assembly generation | |
| 100 Peephole *_peephole; // List of peephole rules for instruction | |
| 101 const char *_ins_pipe; // Instruction Scheduline description class | |
| 102 | |
| 103 uint *_uniq_idx; // Indexes of unique operands | |
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104 int _uniq_idx_length; // Length of _uniq_idx array |
| 0 | 105 uint _num_uniq; // Number of unique operands |
| 106 ComponentList _components; // List of Components matches MachNode's | |
| 107 // operand structure | |
| 108 | |
| 109 // Public Methods | |
| 110 InstructForm(const char *id, bool ideal_only = false); | |
| 111 InstructForm(const char *id, InstructForm *instr, MatchRule *rule); | |
| 112 ~InstructForm(); | |
| 113 | |
| 114 // Dynamic type check | |
| 115 virtual InstructForm *is_instruction() const; | |
| 116 | |
| 117 virtual bool ideal_only() const; | |
| 118 | |
| 119 // This instruction sets a result | |
| 120 virtual bool sets_result() const; | |
| 121 // This instruction needs projections for additional DEFs or KILLs | |
| 122 virtual bool needs_projections(); | |
| 123 // This instruction needs extra nodes for temporary inputs | |
| 124 virtual bool has_temps(); | |
| 125 // This instruction defines or kills more than one object | |
| 126 virtual uint num_defs_or_kills(); | |
| 127 // This instruction has an expand rule? | |
| 128 virtual bool expands() const ; | |
| 129 // Return this instruction's first peephole rule, or NULL | |
| 130 virtual Peephole *peepholes() const; | |
| 131 // Add a peephole rule to this instruction | |
| 132 virtual void append_peephole(Peephole *peep); | |
| 133 | |
| 134 virtual bool is_pinned(FormDict &globals); // should be pinned inside block | |
| 135 virtual bool is_projection(FormDict &globals); // node requires projection | |
| 136 virtual bool is_parm(FormDict &globals); // node matches ideal 'Parm' | |
| 137 // ideal opcode enumeration | |
| 138 virtual const char *ideal_Opcode(FormDict &globals) const; | |
| 139 virtual int is_expensive() const; // node matches ideal 'CosD' | |
| 140 virtual int is_empty_encoding() const; // _size=0 and/or _insencode empty | |
| 141 virtual int is_tls_instruction() const; // tlsLoadP rule or ideal ThreadLocal | |
| 142 virtual int is_ideal_copy() const; // node matches ideal 'Copy*' | |
| 143 virtual bool is_ideal_unlock() const; // node matches ideal 'Unlock' | |
| 144 virtual bool is_ideal_call_leaf() const; // node matches ideal 'CallLeaf' | |
| 145 virtual bool is_ideal_if() const; // node matches ideal 'If' | |
| 146 virtual bool is_ideal_fastlock() const; // node matches 'FastLock' | |
| 147 virtual bool is_ideal_membar() const; // node matches ideal 'MemBarXXX' | |
| 148 virtual bool is_ideal_loadPC() const; // node matches ideal 'LoadPC' | |
| 149 virtual bool is_ideal_box() const; // node matches ideal 'Box' | |
| 150 virtual bool is_ideal_goto() const; // node matches ideal 'Goto' | |
| 151 virtual bool is_ideal_branch() const; // "" 'If' | 'Goto' | 'LoopEnd' | 'Jump' | |
| 152 virtual bool is_ideal_jump() const; // node matches ideal 'Jump' | |
| 153 virtual bool is_ideal_return() const; // node matches ideal 'Return' | |
| 154 virtual bool is_ideal_halt() const; // node matches ideal 'Halt' | |
| 155 virtual bool is_ideal_safepoint() const; // node matches 'SafePoint' | |
| 156 virtual bool is_ideal_nop() const; // node matches 'Nop' | |
| 157 virtual bool is_ideal_control() const; // control node | |
| 158 | |
| 159 virtual Form::CallType is_ideal_call() const; // matches ideal 'Call' | |
| 160 virtual Form::DataType is_ideal_load() const; // node matches ideal 'LoadXNode' | |
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161 // Should antidep checks be disabled for this Instruct |
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162 // See definition of MatchRule::skip_antidep_check |
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163 bool skip_antidep_check() const; |
| 0 | 164 virtual Form::DataType is_ideal_store() const;// node matches ideal 'StoreXNode' |
| 165 bool is_ideal_mem() const { return is_ideal_load() != Form::none || is_ideal_store() != Form::none; } | |
| 166 virtual uint two_address(FormDict &globals); // output reg must match input reg | |
| 167 // when chaining a constant to an instruction, return 'true' and set opType | |
| 168 virtual Form::DataType is_chain_of_constant(FormDict &globals); | |
| 169 virtual Form::DataType is_chain_of_constant(FormDict &globals, const char * &opType); | |
| 170 virtual Form::DataType is_chain_of_constant(FormDict &globals, const char * &opType, const char * &result_type); | |
| 171 | |
| 172 // Check if a simple chain rule | |
| 173 virtual bool is_simple_chain_rule(FormDict &globals) const; | |
| 174 | |
| 175 // check for structural rematerialization | |
| 176 virtual bool rematerialize(FormDict &globals, RegisterForm *registers); | |
| 177 | |
| 178 // loads from memory, so must check for anti-dependence | |
| 179 virtual bool needs_anti_dependence_check(FormDict &globals) const; | |
| 180 virtual int memory_operand(FormDict &globals) const; | |
| 181 bool is_wide_memory_kill(FormDict &globals) const; | |
| 182 | |
| 183 enum memory_operand_type { | |
| 184 NO_MEMORY_OPERAND = -1, | |
| 185 MANY_MEMORY_OPERANDS = 999999 | |
| 186 }; | |
| 187 | |
| 188 | |
| 189 // This instruction captures the machine-independent bottom_type | |
| 190 // Expected use is for pointer vs oop determination for LoadP | |
| 191 virtual bool captures_bottom_type() const; | |
| 192 | |
| 193 virtual const char *cost(); // Access ins_cost attribute | |
| 194 virtual uint num_opnds(); // Count of num_opnds for MachNode class | |
| 195 virtual uint num_post_match_opnds(); | |
| 196 virtual uint num_consts(FormDict &globals) const;// Constants in match rule | |
| 197 // Constants in match rule with specified type | |
| 198 virtual uint num_consts(FormDict &globals, Form::DataType type) const; | |
| 199 | |
| 200 // Return the register class associated with 'leaf'. | |
| 201 virtual const char *out_reg_class(FormDict &globals); | |
| 202 | |
| 203 // number of ideal node inputs to skip | |
| 204 virtual uint oper_input_base(FormDict &globals); | |
| 205 | |
| 206 // Does this instruction need a base-oop edge? | |
| 207 int needs_base_oop_edge(FormDict &globals) const; | |
| 208 | |
| 209 // Build instruction predicates. If the user uses the same operand name | |
| 210 // twice, we need to check that the operands are pointer-eequivalent in | |
| 211 // the DFA during the labeling process. | |
| 212 Predicate *build_predicate(); | |
| 213 | |
| 214 virtual void build_components(); // top-level operands | |
| 215 // Return zero-based position in component list; -1 if not in list. | |
| 216 virtual int operand_position(const char *name, int usedef); | |
| 217 virtual int operand_position_format(const char *name); | |
| 218 | |
| 219 // Return zero-based position in component list; -1 if not in list. | |
| 220 virtual int label_position(); | |
| 221 virtual int method_position(); | |
| 222 // Return number of relocation entries needed for this instruction. | |
| 223 virtual uint reloc(FormDict &globals); | |
| 224 | |
| 225 const char *reduce_result(); | |
| 226 // Return the name of the operand on the right hand side of the binary match | |
| 227 // Return NULL if there is no right hand side | |
| 228 const char *reduce_right(FormDict &globals) const; | |
| 229 const char *reduce_left(FormDict &globals) const; | |
| 230 | |
| 231 // Base class for this instruction, MachNode except for calls | |
| 232 virtual const char *mach_base_class() const; | |
| 233 | |
| 234 // Check if this instruction can cisc-spill to 'alternate' | |
| 235 bool cisc_spills_to(ArchDesc &AD, InstructForm *alternate); | |
| 236 InstructForm *cisc_spill_alternate() { return _cisc_spill_alternate; } | |
| 237 uint cisc_spill_operand() const { return _cisc_spill_operand; } | |
| 238 bool is_cisc_alternate() const { return _is_cisc_alternate; } | |
| 239 void set_cisc_alternate(bool val) { _is_cisc_alternate = val; } | |
| 240 const char *cisc_reg_mask_name() const { return _cisc_reg_mask_name; } | |
| 241 void set_cisc_reg_mask_name(const char *rm_name) { _cisc_reg_mask_name = rm_name; } | |
| 242 // Output cisc-method prototypes and method bodies | |
| 243 void declare_cisc_version(ArchDesc &AD, FILE *fp_cpp); | |
| 244 bool define_cisc_version (ArchDesc &AD, FILE *fp_cpp); | |
| 245 | |
| 246 bool check_branch_variant(ArchDesc &AD, InstructForm *short_branch); | |
| 247 | |
| 248 bool is_short_branch() { return _is_short_branch; } | |
| 249 void set_short_branch(bool val) { _is_short_branch = val; } | |
| 250 | |
| 251 InstructForm *short_branch_form() { return _short_branch_form; } | |
| 252 bool has_short_branch_form() { return _short_branch_form != NULL; } | |
| 253 // Output short branch prototypes and method bodies | |
| 254 void declare_short_branch_methods(FILE *fp_cpp); | |
| 255 bool define_short_branch_methods(FILE *fp_cpp); | |
| 256 | |
| 257 uint alignment() { return _alignment; } | |
| 258 void set_alignment(uint val) { _alignment = val; } | |
| 259 | |
| 260 // Seach through operands to determine operands unique positions. | |
| 261 void set_unique_opnds(); | |
| 262 uint num_unique_opnds() { return _num_uniq; } | |
| 263 uint unique_opnds_idx(int idx) { | |
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264 if( _uniq_idx != NULL && idx > 0 ) { |
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265 assert(idx < _uniq_idx_length, "out of bounds"); |
| 0 | 266 return _uniq_idx[idx]; |
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267 } else { |
| 0 | 268 return idx; |
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269 } |
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270 } |
| 0 | 271 |
| 272 // Operands which are only KILLs aren't part of the input array and | |
| 273 // require special handling in some cases. Their position in this | |
| 274 // operand list is higher than the number of unique operands. | |
| 275 bool is_noninput_operand(uint idx) { | |
| 276 return (idx >= num_unique_opnds()); | |
| 277 } | |
| 278 | |
| 279 // --------------------------- FILE *output_routines | |
| 280 // | |
| 281 // Generate the format call for the replacement variable | |
| 282 void rep_var_format(FILE *fp, const char *rep_var); | |
| 605 | 283 // Generate index values needed for determining the operand position |
| 0 | 284 void index_temps (FILE *fp, FormDict &globals, const char *prefix = "", const char *receiver = ""); |
| 285 // --------------------------- | |
| 286 | |
| 287 virtual bool verify(); // Check consistency after parsing | |
| 288 | |
| 289 virtual void dump(); // Debug printer | |
| 290 virtual void output(FILE *fp); // Write to output files | |
| 291 }; | |
| 292 | |
| 293 //------------------------------EncodeForm------------------------------------- | |
| 294 class EncodeForm : public Form { | |
| 295 private: | |
| 296 | |
| 297 public: | |
| 298 // Public Data | |
| 299 NameList _eclasses; // List of encode class names | |
| 300 Dict _encClass; // Map encode class names to EncClass objects | |
| 301 | |
| 302 // Public Methods | |
| 303 EncodeForm(); | |
| 304 ~EncodeForm(); | |
| 305 | |
| 306 EncClass *add_EncClass(const char *className); | |
| 307 EncClass *encClass(const char *className); | |
| 308 | |
| 309 const char *encClassPrototype(const char *className); | |
| 310 const char *encClassBody(const char *className); | |
| 311 | |
| 312 void dump(); // Debug printer | |
| 313 void output(FILE *fp); // Write info to output files | |
| 314 }; | |
| 315 | |
| 316 //------------------------------EncClass--------------------------------------- | |
| 317 class EncClass : public Form { | |
| 318 public: | |
| 319 // NameList for parameter type and name | |
| 320 NameList _parameter_type; | |
| 321 NameList _parameter_name; | |
| 322 | |
| 323 // Breakdown the encoding into strings separated by $replacement_variables | |
| 324 // There is an entry in _strings, perhaps NULL, that precedes each _rep_vars | |
| 325 NameList _code; // Strings passed through to tty->print | |
| 326 NameList _rep_vars; // replacement variables | |
| 327 | |
| 328 NameList _parameters; // Locally defined names | |
| 329 FormDict _localNames; // Table of components & their types | |
| 330 | |
| 331 public: | |
| 332 // Public Data | |
| 333 const char *_name; // encoding class name | |
| 334 | |
| 335 // Public Methods | |
| 336 EncClass(const char *name); | |
| 337 ~EncClass(); | |
| 338 | |
| 339 // --------------------------- Parameters | |
| 340 // Add a parameter <type,name> pair | |
| 341 void add_parameter(const char *parameter_type, const char *parameter_name); | |
| 342 // Verify operand types in parameter list | |
| 343 bool check_parameter_types(FormDict &globals); | |
| 344 // Obtain the zero-based index corresponding to a replacement variable | |
| 345 int rep_var_index(const char *rep_var); | |
| 346 int num_args() { return _parameter_name.count(); } | |
| 347 | |
| 348 // --------------------------- Code Block | |
| 349 // Add code | |
| 605 | 350 void add_code(const char *string_preceding_replacement_var); |
| 0 | 351 // Add a replacement variable or one of its subfields |
| 352 // Subfields are stored with a leading '$' | |
| 353 void add_rep_var(char *replacement_var); | |
| 354 | |
| 355 bool verify(); | |
| 356 void dump(); | |
| 357 void output(FILE *fp); | |
| 358 }; | |
| 359 | |
| 360 //------------------------------MachNode--------------------------------------- | |
| 361 class MachNodeForm: public Form { | |
| 362 private: | |
| 363 | |
| 364 public: | |
| 365 char *_ident; // Name of this instruction | |
| 366 const char *_machnode_pipe; // Instruction Scheduline description class | |
| 367 | |
| 368 // Public Methods | |
| 369 MachNodeForm(char *id); | |
| 370 ~MachNodeForm(); | |
| 371 | |
| 372 virtual MachNodeForm *is_machnode() const; | |
| 373 | |
| 374 void dump(); // Debug printer | |
| 375 void output(FILE *fp); // Write info to output files | |
| 376 }; | |
| 377 | |
| 378 //------------------------------Opcode----------------------------------------- | |
| 379 class Opcode : public Form { | |
| 380 private: | |
| 381 | |
| 382 public: | |
| 383 // Public Data | |
| 384 // Strings representing instruction opcodes, user defines placement in emit | |
| 385 char *_primary; | |
| 386 char *_secondary; | |
| 387 char *_tertiary; | |
| 388 | |
| 389 enum opcode_type { | |
| 390 NOT_AN_OPCODE = -1, | |
| 391 PRIMARY = 1, | |
| 392 SECONDARY = 2, | |
| 393 TERTIARY = 3 | |
| 394 }; | |
| 395 | |
| 396 // Public Methods | |
| 397 Opcode(char *primary, char *secondary, char *tertiary); | |
| 398 ~Opcode(); | |
| 399 | |
| 400 static Opcode::opcode_type as_opcode_type(const char *designator); | |
| 401 | |
| 402 void dump(); | |
| 403 void output(FILE *fp); | |
| 404 | |
| 405 // --------------------------- FILE *output_routines | |
|
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406 bool print_opcode(FILE *fp, Opcode::opcode_type desired_opcode); |
| 0 | 407 }; |
| 408 | |
| 409 //------------------------------InsEncode-------------------------------------- | |
| 410 class InsEncode : public Form { | |
| 411 private: | |
| 412 // Public Data (access directly only for reads) | |
| 413 // The encodings can only have the values predefined by the ADLC: | |
| 414 // blank, RegReg, RegMem, MemReg, ... | |
| 415 NameList _encoding; | |
| 416 // NameList _parameter; | |
| 417 // The parameters for each encoding are preceeded by a NameList::_signal | |
| 418 // and follow the parameters for the previous encoding. | |
| 419 | |
| 420 // char *_encode; // Type of instruction encoding | |
| 421 | |
| 422 public: | |
| 423 // Public Methods | |
| 424 InsEncode(); | |
| 425 ~InsEncode(); | |
| 426 | |
| 427 // Add "encode class name" and its parameters | |
| 428 NameAndList *add_encode(char *encode_method_name); | |
| 429 // Parameters are added to the returned "NameAndList" by the parser | |
| 430 | |
| 431 // Access the list of encodings | |
| 432 void reset(); | |
| 433 const char *encode_class_iter(); | |
| 434 | |
| 435 // Returns the number of arguments to the current encoding in the iteration | |
| 436 int current_encoding_num_args() { | |
| 437 return ((NameAndList*)_encoding.current())->count(); | |
| 438 } | |
| 439 | |
| 440 // --------------------------- Parameters | |
| 441 // The following call depends upon position within encode_class_iteration | |
| 442 // | |
| 443 // Obtain parameter name from zero based index | |
| 444 const char *rep_var_name(InstructForm &inst, uint param_no); | |
| 445 // --------------------------- | |
| 446 | |
| 447 void dump(); | |
| 448 void output(FILE *fp); | |
| 449 }; | |
| 450 | |
| 451 //------------------------------Effect----------------------------------------- | |
| 452 class Effect : public Form { | |
| 453 private: | |
| 454 | |
| 455 public: | |
| 456 // Public Data | |
| 457 const char *_name; // Pre-defined name for effect | |
| 458 int _use_def; // Enumeration value of effect | |
| 459 | |
| 460 // Public Methods | |
| 461 Effect(const char *name); // Constructor | |
| 462 ~Effect(); // Destructor | |
| 463 | |
| 464 // Dynamic type check | |
| 465 virtual Effect *is_effect() const; | |
| 466 | |
| 467 // Return 'true' if this use def info equals the parameter | |
| 468 bool is(int use_def_kill_enum) const; | |
| 469 // Return 'true' if this use def info is a superset of parameter | |
| 470 bool isa(int use_def_kill_enum) const; | |
| 471 | |
| 472 void dump(); // Debug printer | |
| 473 void output(FILE *fp); // Write info to output files | |
| 474 }; | |
| 475 | |
| 476 //------------------------------ExpandRule------------------------------------- | |
| 477 class ExpandRule : public Form { | |
| 478 private: | |
| 479 NameList _expand_instrs; // ordered list of instructions and operands | |
| 480 | |
| 481 public: | |
| 482 // Public Data | |
| 483 NameList _newopers; // List of newly created operands | |
| 484 Dict _newopconst; // Map new operands to their constructors | |
| 485 | |
| 486 void add_instruction(NameAndList *instruction_name_and_operand_list); | |
| 487 void reset_instructions(); | |
| 488 NameAndList *iter_instructions(); | |
| 489 | |
| 490 // Public Methods | |
| 491 ExpandRule(); // Constructor | |
| 492 ~ExpandRule(); // Destructor | |
| 493 | |
| 494 void dump(); // Debug printer | |
| 495 void output(FILE *fp); // Write info to output files | |
| 496 }; | |
| 497 | |
| 498 //------------------------------RewriteRule------------------------------------ | |
| 499 class RewriteRule : public Form { | |
| 500 private: | |
| 501 | |
| 502 public: | |
| 503 // Public Data | |
| 504 SourceForm *_condition; // Rewrite condition code | |
| 505 InstructForm *_instrs; // List of instructions to expand to | |
| 506 OperandForm *_opers; // List of operands generated by expand | |
| 507 char *_tempParams; // Hold string until parser is finished. | |
| 508 char *_tempBlock; // Hold string until parser is finished. | |
| 509 | |
| 510 // Public Methods | |
| 511 RewriteRule(char* params, char* block) ; | |
| 512 ~RewriteRule(); // Destructor | |
| 513 void dump(); // Debug printer | |
| 514 void output(FILE *fp); // Write info to output files | |
| 515 }; | |
| 516 | |
| 517 | |
| 518 //==============================Operands======================================= | |
| 519 //------------------------------OpClassForm------------------------------------ | |
| 520 class OpClassForm : public Form { | |
| 521 public: | |
| 522 // Public Data | |
| 523 const char *_ident; // Name of this operand | |
| 524 NameList _oplst; // List of operand forms included in class | |
| 525 | |
| 526 // Public Methods | |
| 527 OpClassForm(const char *id); | |
| 528 ~OpClassForm(); | |
| 529 | |
| 530 // dynamic type check | |
| 531 virtual OpClassForm *is_opclass() const; | |
| 532 virtual Form::InterfaceType interface_type(FormDict &globals) const; | |
| 533 virtual bool stack_slots_only(FormDict &globals) const; | |
| 534 | |
| 535 virtual bool is_cisc_mem(FormDict &globals) const; | |
| 536 | |
| 537 | |
| 538 // Min and Max opcodes of operands in this operand class | |
| 539 int _minCode; | |
| 540 int _maxCode; | |
| 541 | |
| 542 virtual bool ideal_only() const; | |
| 543 virtual void dump(); // Debug printer | |
| 544 virtual void output(FILE *fp); // Write to output files | |
| 545 }; | |
| 546 | |
| 547 //------------------------------OperandForm------------------------------------ | |
| 548 class OperandForm : public OpClassForm { | |
| 549 private: | |
| 550 bool _ideal_only; // Not a user-defined instruction | |
| 551 | |
| 552 public: | |
| 553 // Public Data | |
| 554 NameList _parameters; // Locally defined names | |
| 555 FormDict _localNames; // Table of components & their types | |
| 556 MatchRule *_matrule; // Matching rule for this operand | |
| 557 Interface *_interface; // Encoding interface for this operand | |
| 558 Attribute *_attribs; // List of Attribute rules | |
| 559 Predicate *_predicate; // Predicate test for this operand | |
| 560 Constraint *_constraint; // Constraint Rule for this operand | |
| 561 ConstructRule *_construct; // Construction of operand data after matching | |
| 562 FormatRule *_format; // Format for assembly generation | |
| 563 NameList _classes; // List of opclasses which contain this oper | |
| 564 | |
| 565 ComponentList _components; // | |
| 566 | |
| 567 // Public Methods | |
| 568 OperandForm(const char *id); | |
| 569 OperandForm(const char *id, bool ideal_only); | |
| 570 ~OperandForm(); | |
| 571 | |
| 572 // Dynamic type check | |
| 573 virtual OperandForm *is_operand() const; | |
| 574 | |
| 575 virtual bool ideal_only() const; | |
| 576 virtual Form::InterfaceType interface_type(FormDict &globals) const; | |
| 577 virtual bool stack_slots_only(FormDict &globals) const; | |
| 578 | |
| 579 virtual const char *cost(); // Access ins_cost attribute | |
| 580 virtual uint num_leaves() const;// Leaves in complex operand | |
| 581 // Constants in operands' match rules | |
| 582 virtual uint num_consts(FormDict &globals) const; | |
| 583 // Constants in operand's match rule with specified type | |
| 584 virtual uint num_consts(FormDict &globals, Form::DataType type) const; | |
| 585 // Pointer Constants in operands' match rules | |
| 586 virtual uint num_const_ptrs(FormDict &globals) const; | |
| 587 // The number of input edges in the machine world == num_leaves - num_consts | |
| 588 virtual uint num_edges(FormDict &globals) const; | |
| 589 | |
| 590 // Check if this operand is usable for cisc-spilling | |
| 591 virtual bool is_cisc_reg(FormDict &globals) const; | |
| 592 | |
| 593 // node matches ideal 'Bool', grab condition codes from the ideal world | |
| 594 virtual bool is_ideal_bool() const; | |
| 595 | |
| 596 // Has an integer constant suitable for spill offsets | |
| 597 bool has_conI(FormDict &globals) const { | |
| 598 return (num_consts(globals,idealI) == 1) && !is_ideal_bool(); } | |
| 599 bool has_conL(FormDict &globals) const { | |
| 600 return (num_consts(globals,idealL) == 1) && !is_ideal_bool(); } | |
| 601 | |
| 602 // Node is user-defined operand for an sRegX | |
| 603 virtual Form::DataType is_user_name_for_sReg() const; | |
| 604 | |
| 605 // Return ideal type, if there is a single ideal type for this operand | |
| 606 virtual const char *ideal_type(FormDict &globals, RegisterForm *registers = NULL) const; | |
| 607 // If there is a single ideal type for this interface field, return it. | |
| 608 virtual const char *interface_ideal_type(FormDict &globals, | |
| 609 const char *field_name) const; | |
| 610 | |
| 611 // Return true if this operand represents a bound register class | |
| 612 bool is_bound_register() const; | |
| 613 | |
| 614 // Return the Register class for this operand. Returns NULL if | |
| 615 // operand isn't a register form. | |
| 616 RegClass* get_RegClass() const; | |
| 617 | |
| 618 virtual bool is_interface_field(const char *field_name, | |
| 619 const char * &value) const; | |
| 620 | |
| 621 // If this operand has a single ideal type, return its type | |
| 622 virtual Form::DataType simple_type(FormDict &globals) const; | |
| 623 // If this operand is an ideal constant, return its type | |
| 624 virtual Form::DataType is_base_constant(FormDict &globals) const; | |
| 625 | |
| 626 // "true" if this operand is a simple type that is swallowed | |
| 627 virtual bool swallowed(FormDict &globals) const; | |
| 628 | |
| 629 // Return register class name if a constraint specifies the register class. | |
| 630 virtual const char *constrained_reg_class() const; | |
| 631 // Return the register class associated with 'leaf'. | |
| 632 virtual const char *in_reg_class(uint leaf, FormDict &globals); | |
| 633 | |
| 634 // Build component list from MatchRule and operand's parameter list | |
| 635 virtual void build_components(); // top-level operands | |
| 636 | |
| 637 // Return zero-based position in component list; -1 if not in list. | |
| 638 virtual int operand_position(const char *name, int usedef); | |
| 639 | |
| 640 // Return zero-based position in component list; -1 if not in list. | |
| 641 virtual int constant_position(FormDict &globals, const Component *comp); | |
| 642 virtual int constant_position(FormDict &globals, const char *local_name); | |
| 643 // Return the operand form corresponding to the given index, else NULL. | |
| 644 virtual OperandForm *constant_operand(FormDict &globals, uint const_index); | |
| 645 | |
| 646 // Return zero-based position in component list; -1 if not in list. | |
| 647 virtual int register_position(FormDict &globals, const char *regname); | |
| 648 | |
| 649 const char *reduce_result() const; | |
| 650 // Return the name of the operand on the right hand side of the binary match | |
| 651 // Return NULL if there is no right hand side | |
| 652 const char *reduce_right(FormDict &globals) const; | |
| 653 const char *reduce_left(FormDict &globals) const; | |
| 654 | |
| 655 | |
| 656 // --------------------------- FILE *output_routines | |
| 657 // | |
| 658 // Output code for disp_is_oop, if true. | |
| 659 void disp_is_oop(FILE *fp, FormDict &globals); | |
| 660 // Generate code for internal and external format methods | |
| 661 void int_format(FILE *fp, FormDict &globals, uint index); | |
| 662 void ext_format(FILE *fp, FormDict &globals, uint index); | |
| 663 void format_constant(FILE *fp, uint con_index, uint con_type); | |
| 664 // Output code to access the value of the index'th constant | |
| 665 void access_constant(FILE *fp, FormDict &globals, | |
| 666 uint con_index); | |
| 667 // --------------------------- | |
| 668 | |
| 669 | |
| 670 virtual void dump(); // Debug printer | |
| 671 virtual void output(FILE *fp); // Write to output files | |
| 672 }; | |
| 673 | |
| 674 //------------------------------Constraint------------------------------------- | |
| 675 class Constraint : public Form { | |
| 676 private: | |
| 677 | |
| 678 public: | |
| 679 const char *_func; // Constraint function | |
| 680 const char *_arg; // function's argument | |
| 681 | |
| 682 // Public Methods | |
| 683 Constraint(const char *func, const char *arg); // Constructor | |
| 684 ~Constraint(); | |
| 685 | |
| 686 bool stack_slots_only() const; | |
| 687 | |
| 688 void dump(); // Debug printer | |
| 689 void output(FILE *fp); // Write info to output files | |
| 690 }; | |
| 691 | |
| 692 //------------------------------Predicate-------------------------------------- | |
| 693 class Predicate : public Form { | |
| 694 private: | |
| 695 | |
| 696 public: | |
| 697 // Public Data | |
| 698 char *_pred; // C++ source string for predicate | |
| 699 | |
| 700 // Public Methods | |
| 701 Predicate(char *pr); | |
| 702 ~Predicate(); | |
| 703 | |
| 704 void dump(); | |
| 705 void output(FILE *fp); | |
| 706 }; | |
| 707 | |
| 708 //------------------------------Interface-------------------------------------- | |
| 709 class Interface : public Form { | |
| 710 private: | |
| 711 | |
| 712 public: | |
| 713 // Public Data | |
| 714 const char *_name; // String representing the interface name | |
| 715 | |
| 716 // Public Methods | |
| 717 Interface(const char *name); | |
| 718 ~Interface(); | |
| 719 | |
| 720 virtual Form::InterfaceType interface_type(FormDict &globals) const; | |
| 721 | |
| 722 RegInterface *is_RegInterface(); | |
| 723 MemInterface *is_MemInterface(); | |
| 724 ConstInterface *is_ConstInterface(); | |
| 725 CondInterface *is_CondInterface(); | |
| 726 | |
| 727 | |
| 728 void dump(); | |
| 729 void output(FILE *fp); | |
| 730 }; | |
| 731 | |
| 732 //------------------------------RegInterface----------------------------------- | |
| 733 class RegInterface : public Interface { | |
| 734 private: | |
| 735 | |
| 736 public: | |
| 737 // Public Methods | |
| 738 RegInterface(); | |
| 739 ~RegInterface(); | |
| 740 | |
| 741 void dump(); | |
| 742 void output(FILE *fp); | |
| 743 }; | |
| 744 | |
| 745 //------------------------------ConstInterface--------------------------------- | |
| 746 class ConstInterface : public Interface { | |
| 747 private: | |
| 748 | |
| 749 public: | |
| 750 // Public Methods | |
| 751 ConstInterface(); | |
| 752 ~ConstInterface(); | |
| 753 | |
| 754 void dump(); | |
| 755 void output(FILE *fp); | |
| 756 }; | |
| 757 | |
| 758 //------------------------------MemInterface----------------------------------- | |
| 759 class MemInterface : public Interface { | |
| 760 private: | |
| 761 | |
| 762 public: | |
| 763 // Public Data | |
| 764 char *_base; // Base address | |
| 765 char *_index; // index | |
| 766 char *_scale; // scaling factor | |
| 767 char *_disp; // displacement | |
| 768 | |
| 769 // Public Methods | |
| 770 MemInterface(char *base, char *index, char *scale, char *disp); | |
| 771 ~MemInterface(); | |
| 772 | |
| 773 void dump(); | |
| 774 void output(FILE *fp); | |
| 775 }; | |
| 776 | |
| 777 //------------------------------CondInterface---------------------------------- | |
| 778 class CondInterface : public Interface { | |
| 779 private: | |
| 780 | |
| 781 public: | |
| 782 const char *_equal; | |
| 783 const char *_not_equal; | |
| 784 const char *_less; | |
| 785 const char *_greater_equal; | |
| 786 const char *_less_equal; | |
| 787 const char *_greater; | |
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788 const char *_equal_format; |
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789 const char *_not_equal_format; |
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790 const char *_less_format; |
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791 const char *_greater_equal_format; |
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792 const char *_less_equal_format; |
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793 const char *_greater_format; |
| 0 | 794 |
| 795 // Public Methods | |
|
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796 CondInterface(const char* equal, const char* equal_format, |
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797 const char* not_equal, const char* not_equal_format, |
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798 const char* less, const char* less_format, |
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799 const char* greater_equal, const char* greater_equal_format, |
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800 const char* less_equal, const char* less_equal_format, |
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801 const char* greater, const char* greater_format); |
| 0 | 802 ~CondInterface(); |
| 803 | |
| 804 void dump(); | |
| 805 void output(FILE *fp); | |
| 806 }; | |
| 807 | |
| 808 //------------------------------ConstructRule---------------------------------- | |
| 809 class ConstructRule : public Form { | |
| 810 private: | |
| 811 | |
| 812 public: | |
| 813 // Public Data | |
| 814 char *_expr; // String representing the match expression | |
| 815 char *_construct; // String representing C++ constructor code | |
| 816 | |
| 817 // Public Methods | |
| 818 ConstructRule(char *cnstr); | |
| 819 ~ConstructRule(); | |
| 820 | |
| 821 void dump(); | |
| 822 void output(FILE *fp); | |
| 823 }; | |
| 824 | |
| 825 | |
| 826 //==============================Shared========================================= | |
| 827 //------------------------------AttributeForm---------------------------------- | |
| 828 class AttributeForm : public Form { | |
| 829 private: | |
| 830 // counters for unique instruction or operand ID | |
| 831 static int _insId; // user-defined machine instruction types | |
| 832 static int _opId; // user-defined operand types | |
| 833 | |
| 834 int id; // hold type for this object | |
| 835 | |
| 836 public: | |
| 837 // Public Data | |
| 838 char *_attrname; // Name of attribute | |
| 839 int _atype; // Either INS_ATTR or OP_ATTR | |
| 840 char *_attrdef; // C++ source which evaluates to constant | |
| 841 | |
| 842 // Public Methods | |
| 843 AttributeForm(char *attr, int type, char *attrdef); | |
| 844 ~AttributeForm(); | |
| 845 | |
| 846 // Dynamic type check | |
| 847 virtual AttributeForm *is_attribute() const; | |
| 848 | |
| 849 int type() { return id;} // return this object's "id" | |
| 850 | |
| 851 static const char* _ins_cost; // "ins_cost" | |
| 852 static const char* _ins_pc_relative; // "ins_pc_relative" | |
| 853 static const char* _op_cost; // "op_cost" | |
| 854 | |
| 855 void dump(); // Debug printer | |
| 856 void output(FILE *fp); // Write output files | |
| 857 }; | |
| 858 | |
| 859 //------------------------------Component-------------------------------------- | |
| 860 class Component : public Form { | |
| 861 private: | |
| 862 | |
| 863 public: | |
| 864 // Public Data | |
| 865 const char *_name; // Name of this component | |
| 866 const char *_type; // Type of this component | |
| 867 int _usedef; // Value of component | |
| 868 | |
| 869 // Public Methods | |
| 870 Component(const char *name, const char *type, int usedef); | |
| 871 ~Component(); | |
| 872 | |
| 873 | |
| 874 // Return 'true' if this use def info equals the parameter | |
| 875 bool is(int use_def_kill_enum) const; | |
| 876 // Return 'true' if this use def info is a superset of parameter | |
| 877 bool isa(int use_def_kill_enum) const; | |
| 878 int promote_use_def_info(int new_use_def); | |
| 879 const char *base_type(FormDict &globals); | |
| 880 // Form::DataType is_base_constant(FormDict &globals); | |
| 881 | |
| 882 void dump(); // Debug printer | |
| 883 void output(FILE *fp); // Write to output files | |
| 884 | |
| 885 public: | |
| 886 // Implementation depends upon working bit intersection and union. | |
| 887 enum use_def_enum { | |
| 888 INVALID = 0x0, | |
| 889 USE = 0x1, | |
| 890 DEF = 0x2, USE_DEF = 0x3, | |
| 891 KILL = 0x4, USE_KILL = 0x5, | |
| 892 SYNTHETIC = 0x8, | |
| 893 TEMP = USE | SYNTHETIC | |
| 894 }; | |
| 895 }; | |
| 896 | |
| 897 | |
| 898 //------------------------------MatchNode-------------------------------------- | |
| 899 class MatchNode : public Form { | |
| 900 private: | |
| 901 | |
| 902 public: | |
| 903 // Public Data | |
| 904 const char *_result; // The name of the output of this node | |
| 905 const char *_name; // The name that appeared in the match rule | |
| 906 const char *_opType; // The Operation/Type matched | |
| 907 MatchNode *_lChild; // Left child in expression tree | |
| 908 MatchNode *_rChild; // Right child in expression tree | |
| 909 int _numleaves; // Sum of numleaves for all direct children | |
| 910 ArchDesc &_AD; // Reference to ArchDesc object | |
| 911 char *_internalop; // String representing internal operand | |
| 912 int _commutative_id; // id of commutative operation | |
| 913 | |
| 914 // Public Methods | |
| 915 MatchNode(ArchDesc &ad, const char *result = 0, const char *expr = 0, | |
| 916 const char *opType=0, MatchNode *lChild=NULL, | |
| 917 MatchNode *rChild=NULL); | |
| 918 MatchNode(ArchDesc &ad, MatchNode& mNode); // Shallow copy constructor; | |
| 919 MatchNode(ArchDesc &ad, MatchNode& mNode, int clone); // Construct clone | |
| 920 ~MatchNode(); | |
| 921 | |
| 922 // return 0 if not found: | |
| 923 // return 1 if found and position is incremented by operand offset in rule | |
| 924 bool find_name(const char *str, int &position) const; | |
| 925 bool find_type(const char *str, int &position) const; | |
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926 virtual void append_components(FormDict& locals, ComponentList& components, |
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927 bool def_flag = false) const; |
| 0 | 928 bool base_operand(uint &position, FormDict &globals, |
| 929 const char * &result, const char * &name, | |
| 930 const char * &opType) const; | |
| 931 // recursive count on operands | |
| 932 uint num_consts(FormDict &globals) const; | |
| 933 uint num_const_ptrs(FormDict &globals) const; | |
| 934 // recursive count of constants with specified type | |
| 935 uint num_consts(FormDict &globals, Form::DataType type) const; | |
| 936 // uint num_consts() const; // Local inspection only | |
| 937 int needs_ideal_memory_edge(FormDict &globals) const; | |
| 938 int needs_base_oop_edge() const; | |
| 939 | |
| 940 // Help build instruction predicates. Search for operand names. | |
| 941 void count_instr_names( Dict &names ); | |
| 942 int build_instr_pred( char *buf, const char *name, int cnt ); | |
| 943 void build_internalop( ); | |
| 944 | |
| 945 // Return the name of the operands associated with reducing to this operand: | |
| 946 // The result type, plus the left and right sides of the binary match | |
| 947 // Return NULL if there is no left or right hand side | |
| 948 bool sets_result() const; // rule "Set"s result of match | |
| 949 const char *reduce_right(FormDict &globals) const; | |
| 950 const char *reduce_left (FormDict &globals) const; | |
| 951 | |
| 952 // Recursive version of check in MatchRule | |
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953 int cisc_spill_match(FormDict& globals, RegisterForm* registers, |
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954 MatchNode* mRule2, const char* &operand, |
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955 const char* ®_type); |
| 0 | 956 int cisc_spill_merge(int left_result, int right_result); |
| 957 | |
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958 virtual bool equivalent(FormDict& globals, MatchNode* mNode2); |
| 0 | 959 |
| 960 void count_commutative_op(int& count); | |
| 961 void swap_commutative_op(bool atroot, int count); | |
| 962 | |
| 963 void dump(); | |
| 964 void output(FILE *fp); | |
| 965 }; | |
| 966 | |
| 967 //------------------------------MatchRule-------------------------------------- | |
| 968 class MatchRule : public MatchNode { | |
| 969 private: | |
| 970 | |
| 971 public: | |
| 972 // Public Data | |
| 973 const char *_machType; // Machine type index | |
| 974 int _depth; // Expression tree depth | |
| 975 char *_construct; // String representing C++ constructor code | |
| 976 int _numchilds; // Number of direct children | |
| 977 MatchRule *_next; // Pointer to next match rule | |
| 978 | |
| 979 // Public Methods | |
| 980 MatchRule(ArchDesc &ad); | |
| 981 MatchRule(ArchDesc &ad, MatchRule* mRule); // Shallow copy constructor; | |
| 982 MatchRule(ArchDesc &ad, MatchNode* mroot, int depth, char* construct, int numleaves); | |
| 983 ~MatchRule(); | |
| 984 | |
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985 virtual void append_components(FormDict& locals, ComponentList& components, bool def_flag = false) const; |
| 0 | 986 // Recursive call on all operands' match rules in my match rule. |
| 987 bool base_operand(uint &position, FormDict &globals, | |
| 988 const char * &result, const char * &name, | |
| 989 const char * &opType) const; | |
| 990 | |
| 991 | |
| 992 bool is_base_register(FormDict &globals) const; | |
| 993 Form::DataType is_base_constant(FormDict &globals) const; | |
| 994 bool is_chain_rule(FormDict &globals) const; | |
| 995 int is_ideal_copy() const; | |
| 996 int is_expensive() const; // node matches ideal 'CosD' | |
| 997 bool is_ideal_unlock() const; | |
| 998 bool is_ideal_call_leaf() const; | |
| 999 bool is_ideal_if() const; // node matches ideal 'If' | |
| 1000 bool is_ideal_fastlock() const; // node matches ideal 'FastLock' | |
| 1001 bool is_ideal_jump() const; // node matches ideal 'Jump' | |
| 1002 bool is_ideal_membar() const; // node matches ideal 'MemBarXXX' | |
| 1003 bool is_ideal_loadPC() const; // node matches ideal 'LoadPC' | |
| 1004 bool is_ideal_box() const; // node matches ideal 'Box' | |
| 1005 bool is_ideal_goto() const; // node matches ideal 'Goto' | |
| 1006 bool is_ideal_loopEnd() const; // node matches ideal 'LoopEnd' | |
| 1007 bool is_ideal_bool() const; // node matches ideal 'Bool' | |
| 1008 Form::DataType is_ideal_load() const;// node matches ideal 'LoadXNode' | |
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1009 // Should antidep checks be disabled for this rule |
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1010 // See definition of MatchRule::skip_antidep_check |
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1011 bool skip_antidep_check() const; |
| 0 | 1012 Form::DataType is_ideal_store() const;// node matches ideal 'StoreXNode' |
| 1013 | |
| 1014 // Check if 'mRule2' is a cisc-spill variant of this MatchRule | |
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1015 int matchrule_cisc_spill_match(FormDict &globals, RegisterForm* registers, |
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1016 MatchRule* mRule2, const char* &operand, |
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1017 const char* ®_type); |
| 0 | 1018 |
| 1019 // Check if 'mRule2' is equivalent to this MatchRule | |
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1020 virtual bool equivalent(FormDict& globals, MatchNode* mRule2); |
| 0 | 1021 |
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1022 void matchrule_swap_commutative_op(const char* instr_ident, int count, int& match_rules_cnt); |
| 0 | 1023 |
| 1024 void dump(); | |
| 1025 void output(FILE *fp); | |
| 1026 }; | |
| 1027 | |
| 1028 //------------------------------Attribute-------------------------------------- | |
| 1029 class Attribute : public Form { | |
| 1030 private: | |
| 1031 | |
| 1032 public: | |
| 1033 // Public Data | |
| 1034 char *_ident; // Name of predefined attribute | |
| 1035 char *_val; // C++ source which evaluates to constant | |
| 1036 int _atype; // Either INS_ATTR or OP_ATTR | |
| 1037 int int_val(ArchDesc &ad); // Return atoi(_val), ensuring syntax. | |
| 1038 | |
| 1039 // Public Methods | |
| 1040 Attribute(char *id, char* val, int type); | |
| 1041 ~Attribute(); | |
| 1042 | |
| 1043 void dump(); | |
| 1044 void output(FILE *fp); | |
| 1045 }; | |
| 1046 | |
| 1047 //------------------------------FormatRule------------------------------------- | |
| 1048 class FormatRule : public Form { | |
| 1049 private: | |
| 1050 | |
| 1051 public: | |
| 1052 // Public Data | |
| 1053 // There is an entry in _strings, perhaps NULL, that precedes each _rep_vars | |
| 1054 NameList _strings; // Strings passed through to tty->print | |
| 1055 NameList _rep_vars; // replacement variables | |
| 1056 char *_temp; // String representing the assembly code | |
| 1057 | |
| 1058 // Public Methods | |
| 1059 FormatRule(char *temp); | |
| 1060 ~FormatRule(); | |
| 1061 | |
| 1062 void dump(); | |
| 1063 void output(FILE *fp); | |
| 1064 }; |