Mercurial > hg > truffle
annotate src/share/vm/adlc/formssel.hpp @ 7090:05ce1defa4f9
Common out some parts of UnsafeLoad/Store in UnsafeAccess
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Thu, 29 Nov 2012 13:24:08 +0100 |
parents | d336b3173277 |
children | f15fe46d8c00 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_ADLC_FORMSSEL_HPP |
26 #define SHARE_VM_ADLC_FORMSSEL_HPP | |
27 | |
0 | 28 // FORMSSEL.HPP - ADL Parser Instruction Selection Forms Classes |
29 | |
30 // Class List | |
31 class Form; | |
32 class InstructForm; | |
33 class MachNodeForm; | |
34 class OperandForm; | |
35 class OpClassForm; | |
36 class AttributeForm; | |
37 class RegisterForm; | |
38 class PipelineForm; | |
39 class SourceForm; | |
40 class EncodeForm; | |
41 class Component; | |
42 class Constraint; | |
43 class Predicate; | |
44 class MatchRule; | |
45 class Attribute; | |
46 class Effect; | |
47 class ExpandRule; | |
48 class RewriteRule; | |
49 class ConstructRule; | |
50 class FormatRule; | |
51 class Peephole; | |
52 class EncClass; | |
53 class Interface; | |
54 class RegInterface; | |
55 class ConstInterface; | |
56 class MemInterface; | |
57 class CondInterface; | |
58 class Opcode; | |
59 class InsEncode; | |
60 class RegDef; | |
61 class RegClass; | |
62 class AllocClass; | |
63 class ResourceForm; | |
64 class PipeDesc; | |
65 class PipeClass; | |
66 class PeepMatch; | |
67 class PeepConstraint; | |
68 class PeepReplace; | |
69 class MatchList; | |
70 | |
71 class ArchDesc; | |
72 | |
73 //==============================Instructions=================================== | |
74 //------------------------------InstructForm----------------------------------- | |
75 class InstructForm : public Form { | |
76 private: | |
2008 | 77 bool _ideal_only; // Not a user-defined instruction |
0 | 78 // Members used for tracking CISC-spilling |
6850 | 79 int _cisc_spill_operand;// Which operand may cisc-spill |
0 | 80 void set_cisc_spill_operand(uint op_index) { _cisc_spill_operand = op_index; } |
2008 | 81 bool _is_cisc_alternate; |
0 | 82 InstructForm *_cisc_spill_alternate;// cisc possible replacement |
83 const char *_cisc_reg_mask_name; | |
84 InstructForm *_short_branch_form; | |
85 bool _is_short_branch; | |
2008 | 86 bool _is_mach_constant; // true if Node is a MachConstantNode |
0 | 87 uint _alignment; |
88 | |
89 public: | |
90 // Public Data | |
91 const char *_ident; // Name of this instruction | |
92 NameList _parameters; // Locally defined names | |
93 FormDict _localNames; // Table of operands & their types | |
94 MatchRule *_matrule; // Matching rule for this instruction | |
95 Opcode *_opcode; // Encoding of the opcode for instruction | |
96 char *_size; // Size of instruction | |
97 InsEncode *_insencode; // Encoding class instruction belongs to | |
2008 | 98 InsEncode *_constant; // Encoding class constant value belongs to |
0 | 99 Attribute *_attribs; // List of Attribute rules |
100 Predicate *_predicate; // Predicate test for this instruction | |
101 FormDict _effects; // Dictionary of effect rules | |
102 ExpandRule *_exprule; // Expand rule for this instruction | |
103 RewriteRule *_rewrule; // Rewrite rule for this instruction | |
104 FormatRule *_format; // Format for assembly generation | |
105 Peephole *_peephole; // List of peephole rules for instruction | |
6850 | 106 const char *_ins_pipe; // Instruction Scheduling description class |
0 | 107 |
108 uint *_uniq_idx; // Indexes of unique operands | |
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109 int _uniq_idx_length; // Length of _uniq_idx array |
0 | 110 uint _num_uniq; // Number of unique operands |
111 ComponentList _components; // List of Components matches MachNode's | |
112 // operand structure | |
113 | |
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114 bool _has_call; // contain a call and caller save registers should be saved? |
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115 |
0 | 116 // Public Methods |
117 InstructForm(const char *id, bool ideal_only = false); | |
118 InstructForm(const char *id, InstructForm *instr, MatchRule *rule); | |
119 ~InstructForm(); | |
120 | |
121 // Dynamic type check | |
122 virtual InstructForm *is_instruction() const; | |
123 | |
124 virtual bool ideal_only() const; | |
125 | |
126 // This instruction sets a result | |
127 virtual bool sets_result() const; | |
128 // This instruction needs projections for additional DEFs or KILLs | |
129 virtual bool needs_projections(); | |
130 // This instruction needs extra nodes for temporary inputs | |
131 virtual bool has_temps(); | |
132 // This instruction defines or kills more than one object | |
133 virtual uint num_defs_or_kills(); | |
134 // This instruction has an expand rule? | |
135 virtual bool expands() const ; | |
136 // Return this instruction's first peephole rule, or NULL | |
137 virtual Peephole *peepholes() const; | |
138 // Add a peephole rule to this instruction | |
139 virtual void append_peephole(Peephole *peep); | |
140 | |
141 virtual bool is_pinned(FormDict &globals); // should be pinned inside block | |
142 virtual bool is_projection(FormDict &globals); // node requires projection | |
143 virtual bool is_parm(FormDict &globals); // node matches ideal 'Parm' | |
144 // ideal opcode enumeration | |
145 virtual const char *ideal_Opcode(FormDict &globals) const; | |
146 virtual int is_expensive() const; // node matches ideal 'CosD' | |
147 virtual int is_empty_encoding() const; // _size=0 and/or _insencode empty | |
148 virtual int is_tls_instruction() const; // tlsLoadP rule or ideal ThreadLocal | |
149 virtual int is_ideal_copy() const; // node matches ideal 'Copy*' | |
150 virtual bool is_ideal_if() const; // node matches ideal 'If' | |
151 virtual bool is_ideal_fastlock() const; // node matches 'FastLock' | |
152 virtual bool is_ideal_membar() const; // node matches ideal 'MemBarXXX' | |
153 virtual bool is_ideal_loadPC() const; // node matches ideal 'LoadPC' | |
154 virtual bool is_ideal_box() const; // node matches ideal 'Box' | |
155 virtual bool is_ideal_goto() const; // node matches ideal 'Goto' | |
156 virtual bool is_ideal_branch() const; // "" 'If' | 'Goto' | 'LoopEnd' | 'Jump' | |
157 virtual bool is_ideal_jump() const; // node matches ideal 'Jump' | |
158 virtual bool is_ideal_return() const; // node matches ideal 'Return' | |
159 virtual bool is_ideal_halt() const; // node matches ideal 'Halt' | |
160 virtual bool is_ideal_safepoint() const; // node matches 'SafePoint' | |
161 virtual bool is_ideal_nop() const; // node matches 'Nop' | |
162 virtual bool is_ideal_control() const; // control node | |
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163 virtual bool is_vector() const; // vector instruction |
0 | 164 |
165 virtual Form::CallType is_ideal_call() const; // matches ideal 'Call' | |
166 virtual Form::DataType is_ideal_load() const; // node matches ideal 'LoadXNode' | |
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167 // Should antidep checks be disabled for this Instruct |
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168 // See definition of MatchRule::skip_antidep_check |
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169 bool skip_antidep_check() const; |
0 | 170 virtual Form::DataType is_ideal_store() const;// node matches ideal 'StoreXNode' |
171 bool is_ideal_mem() const { return is_ideal_load() != Form::none || is_ideal_store() != Form::none; } | |
172 virtual uint two_address(FormDict &globals); // output reg must match input reg | |
173 // when chaining a constant to an instruction, return 'true' and set opType | |
174 virtual Form::DataType is_chain_of_constant(FormDict &globals); | |
175 virtual Form::DataType is_chain_of_constant(FormDict &globals, const char * &opType); | |
176 virtual Form::DataType is_chain_of_constant(FormDict &globals, const char * &opType, const char * &result_type); | |
177 | |
178 // Check if a simple chain rule | |
179 virtual bool is_simple_chain_rule(FormDict &globals) const; | |
180 | |
181 // check for structural rematerialization | |
182 virtual bool rematerialize(FormDict &globals, RegisterForm *registers); | |
183 | |
184 // loads from memory, so must check for anti-dependence | |
185 virtual bool needs_anti_dependence_check(FormDict &globals) const; | |
186 virtual int memory_operand(FormDict &globals) const; | |
187 bool is_wide_memory_kill(FormDict &globals) const; | |
188 | |
189 enum memory_operand_type { | |
190 NO_MEMORY_OPERAND = -1, | |
191 MANY_MEMORY_OPERANDS = 999999 | |
192 }; | |
193 | |
194 | |
195 // This instruction captures the machine-independent bottom_type | |
196 // Expected use is for pointer vs oop determination for LoadP | |
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197 virtual bool captures_bottom_type(FormDict& globals) const; |
0 | 198 |
199 virtual const char *cost(); // Access ins_cost attribute | |
200 virtual uint num_opnds(); // Count of num_opnds for MachNode class | |
6850 | 201 // Counts USE_DEF opnds twice. See also num_unique_opnds(). |
0 | 202 virtual uint num_post_match_opnds(); |
203 virtual uint num_consts(FormDict &globals) const;// Constants in match rule | |
204 // Constants in match rule with specified type | |
205 virtual uint num_consts(FormDict &globals, Form::DataType type) const; | |
206 | |
207 // Return the register class associated with 'leaf'. | |
208 virtual const char *out_reg_class(FormDict &globals); | |
209 | |
210 // number of ideal node inputs to skip | |
211 virtual uint oper_input_base(FormDict &globals); | |
212 | |
213 // Does this instruction need a base-oop edge? | |
214 int needs_base_oop_edge(FormDict &globals) const; | |
215 | |
216 // Build instruction predicates. If the user uses the same operand name | |
217 // twice, we need to check that the operands are pointer-eequivalent in | |
218 // the DFA during the labeling process. | |
219 Predicate *build_predicate(); | |
220 | |
221 virtual void build_components(); // top-level operands | |
222 // Return zero-based position in component list; -1 if not in list. | |
223 virtual int operand_position(const char *name, int usedef); | |
224 virtual int operand_position_format(const char *name); | |
225 | |
226 // Return zero-based position in component list; -1 if not in list. | |
227 virtual int label_position(); | |
228 virtual int method_position(); | |
229 // Return number of relocation entries needed for this instruction. | |
230 virtual uint reloc(FormDict &globals); | |
231 | |
6850 | 232 const char *opnd_ident(int idx); // Name of operand #idx. |
0 | 233 const char *reduce_result(); |
234 // Return the name of the operand on the right hand side of the binary match | |
235 // Return NULL if there is no right hand side | |
236 const char *reduce_right(FormDict &globals) const; | |
237 const char *reduce_left(FormDict &globals) const; | |
238 | |
239 // Base class for this instruction, MachNode except for calls | |
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240 virtual const char *mach_base_class(FormDict &globals) const; |
0 | 241 |
242 // Check if this instruction can cisc-spill to 'alternate' | |
243 bool cisc_spills_to(ArchDesc &AD, InstructForm *alternate); | |
244 InstructForm *cisc_spill_alternate() { return _cisc_spill_alternate; } | |
6850 | 245 int cisc_spill_operand() const { return _cisc_spill_operand; } |
0 | 246 bool is_cisc_alternate() const { return _is_cisc_alternate; } |
247 void set_cisc_alternate(bool val) { _is_cisc_alternate = val; } | |
248 const char *cisc_reg_mask_name() const { return _cisc_reg_mask_name; } | |
249 void set_cisc_reg_mask_name(const char *rm_name) { _cisc_reg_mask_name = rm_name; } | |
250 // Output cisc-method prototypes and method bodies | |
251 void declare_cisc_version(ArchDesc &AD, FILE *fp_cpp); | |
252 bool define_cisc_version (ArchDesc &AD, FILE *fp_cpp); | |
253 | |
254 bool check_branch_variant(ArchDesc &AD, InstructForm *short_branch); | |
255 | |
256 bool is_short_branch() { return _is_short_branch; } | |
257 void set_short_branch(bool val) { _is_short_branch = val; } | |
258 | |
2008 | 259 bool is_mach_constant() const { return _is_mach_constant; } |
260 void set_is_mach_constant(bool x) { _is_mach_constant = x; } | |
261 | |
0 | 262 InstructForm *short_branch_form() { return _short_branch_form; } |
263 bool has_short_branch_form() { return _short_branch_form != NULL; } | |
264 // Output short branch prototypes and method bodies | |
265 void declare_short_branch_methods(FILE *fp_cpp); | |
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266 bool define_short_branch_methods(ArchDesc &AD, FILE *fp_cpp); |
0 | 267 |
268 uint alignment() { return _alignment; } | |
269 void set_alignment(uint val) { _alignment = val; } | |
270 | |
271 // Seach through operands to determine operands unique positions. | |
272 void set_unique_opnds(); | |
273 uint num_unique_opnds() { return _num_uniq; } | |
274 uint unique_opnds_idx(int idx) { | |
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275 if( _uniq_idx != NULL && idx > 0 ) { |
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276 assert(idx < _uniq_idx_length, "out of bounds"); |
0 | 277 return _uniq_idx[idx]; |
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278 } else { |
0 | 279 return idx; |
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280 } |
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281 } |
6850 | 282 const char *unique_opnd_ident(int idx); // Name of operand at unique idx. |
0 | 283 |
284 // Operands which are only KILLs aren't part of the input array and | |
285 // require special handling in some cases. Their position in this | |
286 // operand list is higher than the number of unique operands. | |
287 bool is_noninput_operand(uint idx) { | |
288 return (idx >= num_unique_opnds()); | |
289 } | |
290 | |
291 // --------------------------- FILE *output_routines | |
292 // | |
293 // Generate the format call for the replacement variable | |
294 void rep_var_format(FILE *fp, const char *rep_var); | |
605 | 295 // Generate index values needed for determining the operand position |
0 | 296 void index_temps (FILE *fp, FormDict &globals, const char *prefix = "", const char *receiver = ""); |
297 // --------------------------- | |
298 | |
299 virtual bool verify(); // Check consistency after parsing | |
300 | |
301 virtual void dump(); // Debug printer | |
302 virtual void output(FILE *fp); // Write to output files | |
303 }; | |
304 | |
305 //------------------------------EncodeForm------------------------------------- | |
306 class EncodeForm : public Form { | |
307 private: | |
308 | |
309 public: | |
310 // Public Data | |
311 NameList _eclasses; // List of encode class names | |
312 Dict _encClass; // Map encode class names to EncClass objects | |
313 | |
314 // Public Methods | |
315 EncodeForm(); | |
316 ~EncodeForm(); | |
317 | |
318 EncClass *add_EncClass(const char *className); | |
319 EncClass *encClass(const char *className); | |
320 | |
321 const char *encClassPrototype(const char *className); | |
322 const char *encClassBody(const char *className); | |
323 | |
324 void dump(); // Debug printer | |
325 void output(FILE *fp); // Write info to output files | |
326 }; | |
327 | |
328 //------------------------------EncClass--------------------------------------- | |
329 class EncClass : public Form { | |
330 public: | |
331 // NameList for parameter type and name | |
332 NameList _parameter_type; | |
333 NameList _parameter_name; | |
334 | |
335 // Breakdown the encoding into strings separated by $replacement_variables | |
336 // There is an entry in _strings, perhaps NULL, that precedes each _rep_vars | |
337 NameList _code; // Strings passed through to tty->print | |
338 NameList _rep_vars; // replacement variables | |
339 | |
340 NameList _parameters; // Locally defined names | |
341 FormDict _localNames; // Table of components & their types | |
342 | |
343 public: | |
344 // Public Data | |
345 const char *_name; // encoding class name | |
346 | |
347 // Public Methods | |
348 EncClass(const char *name); | |
349 ~EncClass(); | |
350 | |
351 // --------------------------- Parameters | |
352 // Add a parameter <type,name> pair | |
353 void add_parameter(const char *parameter_type, const char *parameter_name); | |
354 // Verify operand types in parameter list | |
355 bool check_parameter_types(FormDict &globals); | |
356 // Obtain the zero-based index corresponding to a replacement variable | |
357 int rep_var_index(const char *rep_var); | |
358 int num_args() { return _parameter_name.count(); } | |
359 | |
360 // --------------------------- Code Block | |
361 // Add code | |
605 | 362 void add_code(const char *string_preceding_replacement_var); |
0 | 363 // Add a replacement variable or one of its subfields |
364 // Subfields are stored with a leading '$' | |
365 void add_rep_var(char *replacement_var); | |
366 | |
367 bool verify(); | |
368 void dump(); | |
369 void output(FILE *fp); | |
370 }; | |
371 | |
372 //------------------------------MachNode--------------------------------------- | |
373 class MachNodeForm: public Form { | |
374 private: | |
375 | |
376 public: | |
377 char *_ident; // Name of this instruction | |
378 const char *_machnode_pipe; // Instruction Scheduline description class | |
379 | |
380 // Public Methods | |
381 MachNodeForm(char *id); | |
382 ~MachNodeForm(); | |
383 | |
384 virtual MachNodeForm *is_machnode() const; | |
385 | |
386 void dump(); // Debug printer | |
387 void output(FILE *fp); // Write info to output files | |
388 }; | |
389 | |
390 //------------------------------Opcode----------------------------------------- | |
391 class Opcode : public Form { | |
392 private: | |
393 | |
394 public: | |
395 // Public Data | |
396 // Strings representing instruction opcodes, user defines placement in emit | |
397 char *_primary; | |
398 char *_secondary; | |
399 char *_tertiary; | |
400 | |
401 enum opcode_type { | |
402 NOT_AN_OPCODE = -1, | |
403 PRIMARY = 1, | |
404 SECONDARY = 2, | |
405 TERTIARY = 3 | |
406 }; | |
407 | |
408 // Public Methods | |
409 Opcode(char *primary, char *secondary, char *tertiary); | |
410 ~Opcode(); | |
411 | |
412 static Opcode::opcode_type as_opcode_type(const char *designator); | |
413 | |
414 void dump(); | |
415 void output(FILE *fp); | |
416 | |
417 // --------------------------- FILE *output_routines | |
415
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418 bool print_opcode(FILE *fp, Opcode::opcode_type desired_opcode); |
0 | 419 }; |
420 | |
421 //------------------------------InsEncode-------------------------------------- | |
422 class InsEncode : public Form { | |
423 private: | |
424 // Public Data (access directly only for reads) | |
425 // The encodings can only have the values predefined by the ADLC: | |
426 // blank, RegReg, RegMem, MemReg, ... | |
427 NameList _encoding; | |
428 // NameList _parameter; | |
429 // The parameters for each encoding are preceeded by a NameList::_signal | |
430 // and follow the parameters for the previous encoding. | |
431 | |
432 // char *_encode; // Type of instruction encoding | |
433 | |
434 public: | |
435 // Public Methods | |
436 InsEncode(); | |
437 ~InsEncode(); | |
438 | |
439 // Add "encode class name" and its parameters | |
440 NameAndList *add_encode(char *encode_method_name); | |
441 // Parameters are added to the returned "NameAndList" by the parser | |
442 | |
443 // Access the list of encodings | |
444 void reset(); | |
445 const char *encode_class_iter(); | |
446 | |
447 // Returns the number of arguments to the current encoding in the iteration | |
448 int current_encoding_num_args() { | |
449 return ((NameAndList*)_encoding.current())->count(); | |
450 } | |
451 | |
452 // --------------------------- Parameters | |
453 // The following call depends upon position within encode_class_iteration | |
454 // | |
455 // Obtain parameter name from zero based index | |
456 const char *rep_var_name(InstructForm &inst, uint param_no); | |
457 // --------------------------- | |
458 | |
459 void dump(); | |
460 void output(FILE *fp); | |
461 }; | |
462 | |
463 //------------------------------Effect----------------------------------------- | |
464 class Effect : public Form { | |
465 private: | |
466 | |
467 public: | |
468 // Public Data | |
469 const char *_name; // Pre-defined name for effect | |
470 int _use_def; // Enumeration value of effect | |
471 | |
472 // Public Methods | |
473 Effect(const char *name); // Constructor | |
474 ~Effect(); // Destructor | |
475 | |
476 // Dynamic type check | |
477 virtual Effect *is_effect() const; | |
478 | |
479 // Return 'true' if this use def info equals the parameter | |
480 bool is(int use_def_kill_enum) const; | |
481 // Return 'true' if this use def info is a superset of parameter | |
482 bool isa(int use_def_kill_enum) const; | |
483 | |
484 void dump(); // Debug printer | |
485 void output(FILE *fp); // Write info to output files | |
486 }; | |
487 | |
488 //------------------------------ExpandRule------------------------------------- | |
489 class ExpandRule : public Form { | |
490 private: | |
491 NameList _expand_instrs; // ordered list of instructions and operands | |
492 | |
493 public: | |
494 // Public Data | |
495 NameList _newopers; // List of newly created operands | |
496 Dict _newopconst; // Map new operands to their constructors | |
497 | |
498 void add_instruction(NameAndList *instruction_name_and_operand_list); | |
499 void reset_instructions(); | |
500 NameAndList *iter_instructions(); | |
501 | |
502 // Public Methods | |
503 ExpandRule(); // Constructor | |
504 ~ExpandRule(); // Destructor | |
505 | |
506 void dump(); // Debug printer | |
507 void output(FILE *fp); // Write info to output files | |
508 }; | |
509 | |
510 //------------------------------RewriteRule------------------------------------ | |
511 class RewriteRule : public Form { | |
512 private: | |
513 | |
514 public: | |
515 // Public Data | |
516 SourceForm *_condition; // Rewrite condition code | |
517 InstructForm *_instrs; // List of instructions to expand to | |
518 OperandForm *_opers; // List of operands generated by expand | |
519 char *_tempParams; // Hold string until parser is finished. | |
520 char *_tempBlock; // Hold string until parser is finished. | |
521 | |
522 // Public Methods | |
523 RewriteRule(char* params, char* block) ; | |
524 ~RewriteRule(); // Destructor | |
525 void dump(); // Debug printer | |
526 void output(FILE *fp); // Write info to output files | |
527 }; | |
528 | |
529 | |
530 //==============================Operands======================================= | |
531 //------------------------------OpClassForm------------------------------------ | |
532 class OpClassForm : public Form { | |
533 public: | |
534 // Public Data | |
535 const char *_ident; // Name of this operand | |
536 NameList _oplst; // List of operand forms included in class | |
537 | |
538 // Public Methods | |
539 OpClassForm(const char *id); | |
540 ~OpClassForm(); | |
541 | |
542 // dynamic type check | |
543 virtual OpClassForm *is_opclass() const; | |
544 virtual Form::InterfaceType interface_type(FormDict &globals) const; | |
545 virtual bool stack_slots_only(FormDict &globals) const; | |
546 | |
547 virtual bool is_cisc_mem(FormDict &globals) const; | |
548 | |
549 | |
550 // Min and Max opcodes of operands in this operand class | |
551 int _minCode; | |
552 int _maxCode; | |
553 | |
554 virtual bool ideal_only() const; | |
555 virtual void dump(); // Debug printer | |
556 virtual void output(FILE *fp); // Write to output files | |
557 }; | |
558 | |
559 //------------------------------OperandForm------------------------------------ | |
560 class OperandForm : public OpClassForm { | |
561 private: | |
562 bool _ideal_only; // Not a user-defined instruction | |
563 | |
564 public: | |
565 // Public Data | |
566 NameList _parameters; // Locally defined names | |
567 FormDict _localNames; // Table of components & their types | |
568 MatchRule *_matrule; // Matching rule for this operand | |
569 Interface *_interface; // Encoding interface for this operand | |
570 Attribute *_attribs; // List of Attribute rules | |
571 Predicate *_predicate; // Predicate test for this operand | |
572 Constraint *_constraint; // Constraint Rule for this operand | |
573 ConstructRule *_construct; // Construction of operand data after matching | |
574 FormatRule *_format; // Format for assembly generation | |
575 NameList _classes; // List of opclasses which contain this oper | |
576 | |
577 ComponentList _components; // | |
578 | |
579 // Public Methods | |
580 OperandForm(const char *id); | |
581 OperandForm(const char *id, bool ideal_only); | |
582 ~OperandForm(); | |
583 | |
584 // Dynamic type check | |
585 virtual OperandForm *is_operand() const; | |
586 | |
587 virtual bool ideal_only() const; | |
588 virtual Form::InterfaceType interface_type(FormDict &globals) const; | |
589 virtual bool stack_slots_only(FormDict &globals) const; | |
590 | |
591 virtual const char *cost(); // Access ins_cost attribute | |
592 virtual uint num_leaves() const;// Leaves in complex operand | |
593 // Constants in operands' match rules | |
594 virtual uint num_consts(FormDict &globals) const; | |
595 // Constants in operand's match rule with specified type | |
596 virtual uint num_consts(FormDict &globals, Form::DataType type) const; | |
597 // Pointer Constants in operands' match rules | |
598 virtual uint num_const_ptrs(FormDict &globals) const; | |
599 // The number of input edges in the machine world == num_leaves - num_consts | |
600 virtual uint num_edges(FormDict &globals) const; | |
601 | |
602 // Check if this operand is usable for cisc-spilling | |
603 virtual bool is_cisc_reg(FormDict &globals) const; | |
604 | |
605 // node matches ideal 'Bool', grab condition codes from the ideal world | |
606 virtual bool is_ideal_bool() const; | |
607 | |
608 // Has an integer constant suitable for spill offsets | |
609 bool has_conI(FormDict &globals) const { | |
610 return (num_consts(globals,idealI) == 1) && !is_ideal_bool(); } | |
611 bool has_conL(FormDict &globals) const { | |
612 return (num_consts(globals,idealL) == 1) && !is_ideal_bool(); } | |
613 | |
614 // Node is user-defined operand for an sRegX | |
615 virtual Form::DataType is_user_name_for_sReg() const; | |
616 | |
617 // Return ideal type, if there is a single ideal type for this operand | |
618 virtual const char *ideal_type(FormDict &globals, RegisterForm *registers = NULL) const; | |
619 // If there is a single ideal type for this interface field, return it. | |
620 virtual const char *interface_ideal_type(FormDict &globals, | |
621 const char *field_name) const; | |
622 | |
623 // Return true if this operand represents a bound register class | |
624 bool is_bound_register() const; | |
625 | |
626 // Return the Register class for this operand. Returns NULL if | |
627 // operand isn't a register form. | |
628 RegClass* get_RegClass() const; | |
629 | |
630 virtual bool is_interface_field(const char *field_name, | |
631 const char * &value) const; | |
632 | |
633 // If this operand has a single ideal type, return its type | |
634 virtual Form::DataType simple_type(FormDict &globals) const; | |
635 // If this operand is an ideal constant, return its type | |
636 virtual Form::DataType is_base_constant(FormDict &globals) const; | |
637 | |
638 // "true" if this operand is a simple type that is swallowed | |
639 virtual bool swallowed(FormDict &globals) const; | |
640 | |
641 // Return register class name if a constraint specifies the register class. | |
642 virtual const char *constrained_reg_class() const; | |
643 // Return the register class associated with 'leaf'. | |
644 virtual const char *in_reg_class(uint leaf, FormDict &globals); | |
645 | |
646 // Build component list from MatchRule and operand's parameter list | |
647 virtual void build_components(); // top-level operands | |
648 | |
649 // Return zero-based position in component list; -1 if not in list. | |
650 virtual int operand_position(const char *name, int usedef); | |
651 | |
652 // Return zero-based position in component list; -1 if not in list. | |
653 virtual int constant_position(FormDict &globals, const Component *comp); | |
654 virtual int constant_position(FormDict &globals, const char *local_name); | |
655 // Return the operand form corresponding to the given index, else NULL. | |
656 virtual OperandForm *constant_operand(FormDict &globals, uint const_index); | |
657 | |
658 // Return zero-based position in component list; -1 if not in list. | |
659 virtual int register_position(FormDict &globals, const char *regname); | |
660 | |
661 const char *reduce_result() const; | |
662 // Return the name of the operand on the right hand side of the binary match | |
663 // Return NULL if there is no right hand side | |
664 const char *reduce_right(FormDict &globals) const; | |
665 const char *reduce_left(FormDict &globals) const; | |
666 | |
667 | |
668 // --------------------------- FILE *output_routines | |
669 // | |
670 // Output code for disp_is_oop, if true. | |
671 void disp_is_oop(FILE *fp, FormDict &globals); | |
672 // Generate code for internal and external format methods | |
673 void int_format(FILE *fp, FormDict &globals, uint index); | |
674 void ext_format(FILE *fp, FormDict &globals, uint index); | |
675 void format_constant(FILE *fp, uint con_index, uint con_type); | |
676 // Output code to access the value of the index'th constant | |
677 void access_constant(FILE *fp, FormDict &globals, | |
678 uint con_index); | |
679 // --------------------------- | |
680 | |
681 | |
682 virtual void dump(); // Debug printer | |
683 virtual void output(FILE *fp); // Write to output files | |
684 }; | |
685 | |
686 //------------------------------Constraint------------------------------------- | |
687 class Constraint : public Form { | |
688 private: | |
689 | |
690 public: | |
691 const char *_func; // Constraint function | |
692 const char *_arg; // function's argument | |
693 | |
694 // Public Methods | |
695 Constraint(const char *func, const char *arg); // Constructor | |
696 ~Constraint(); | |
697 | |
698 bool stack_slots_only() const; | |
699 | |
700 void dump(); // Debug printer | |
701 void output(FILE *fp); // Write info to output files | |
702 }; | |
703 | |
704 //------------------------------Predicate-------------------------------------- | |
705 class Predicate : public Form { | |
706 private: | |
707 | |
708 public: | |
709 // Public Data | |
710 char *_pred; // C++ source string for predicate | |
711 | |
712 // Public Methods | |
713 Predicate(char *pr); | |
714 ~Predicate(); | |
715 | |
716 void dump(); | |
717 void output(FILE *fp); | |
718 }; | |
719 | |
720 //------------------------------Interface-------------------------------------- | |
721 class Interface : public Form { | |
722 private: | |
723 | |
724 public: | |
725 // Public Data | |
726 const char *_name; // String representing the interface name | |
727 | |
728 // Public Methods | |
729 Interface(const char *name); | |
730 ~Interface(); | |
731 | |
732 virtual Form::InterfaceType interface_type(FormDict &globals) const; | |
733 | |
734 RegInterface *is_RegInterface(); | |
735 MemInterface *is_MemInterface(); | |
736 ConstInterface *is_ConstInterface(); | |
737 CondInterface *is_CondInterface(); | |
738 | |
739 | |
740 void dump(); | |
741 void output(FILE *fp); | |
742 }; | |
743 | |
744 //------------------------------RegInterface----------------------------------- | |
745 class RegInterface : public Interface { | |
746 private: | |
747 | |
748 public: | |
749 // Public Methods | |
750 RegInterface(); | |
751 ~RegInterface(); | |
752 | |
753 void dump(); | |
754 void output(FILE *fp); | |
755 }; | |
756 | |
757 //------------------------------ConstInterface--------------------------------- | |
758 class ConstInterface : public Interface { | |
759 private: | |
760 | |
761 public: | |
762 // Public Methods | |
763 ConstInterface(); | |
764 ~ConstInterface(); | |
765 | |
766 void dump(); | |
767 void output(FILE *fp); | |
768 }; | |
769 | |
770 //------------------------------MemInterface----------------------------------- | |
771 class MemInterface : public Interface { | |
772 private: | |
773 | |
774 public: | |
775 // Public Data | |
776 char *_base; // Base address | |
777 char *_index; // index | |
778 char *_scale; // scaling factor | |
779 char *_disp; // displacement | |
780 | |
781 // Public Methods | |
782 MemInterface(char *base, char *index, char *scale, char *disp); | |
783 ~MemInterface(); | |
784 | |
785 void dump(); | |
786 void output(FILE *fp); | |
787 }; | |
788 | |
789 //------------------------------CondInterface---------------------------------- | |
790 class CondInterface : public Interface { | |
791 private: | |
792 | |
793 public: | |
794 const char *_equal; | |
795 const char *_not_equal; | |
796 const char *_less; | |
797 const char *_greater_equal; | |
798 const char *_less_equal; | |
799 const char *_greater; | |
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800 const char *_equal_format; |
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801 const char *_not_equal_format; |
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802 const char *_less_format; |
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803 const char *_greater_equal_format; |
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804 const char *_less_equal_format; |
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805 const char *_greater_format; |
0 | 806 |
807 // Public Methods | |
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808 CondInterface(const char* equal, const char* equal_format, |
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809 const char* not_equal, const char* not_equal_format, |
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810 const char* less, const char* less_format, |
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811 const char* greater_equal, const char* greater_equal_format, |
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812 const char* less_equal, const char* less_equal_format, |
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813 const char* greater, const char* greater_format); |
0 | 814 ~CondInterface(); |
815 | |
816 void dump(); | |
817 void output(FILE *fp); | |
818 }; | |
819 | |
820 //------------------------------ConstructRule---------------------------------- | |
821 class ConstructRule : public Form { | |
822 private: | |
823 | |
824 public: | |
825 // Public Data | |
826 char *_expr; // String representing the match expression | |
827 char *_construct; // String representing C++ constructor code | |
828 | |
829 // Public Methods | |
830 ConstructRule(char *cnstr); | |
831 ~ConstructRule(); | |
832 | |
833 void dump(); | |
834 void output(FILE *fp); | |
835 }; | |
836 | |
837 | |
838 //==============================Shared========================================= | |
839 //------------------------------AttributeForm---------------------------------- | |
840 class AttributeForm : public Form { | |
841 private: | |
842 // counters for unique instruction or operand ID | |
843 static int _insId; // user-defined machine instruction types | |
844 static int _opId; // user-defined operand types | |
845 | |
846 int id; // hold type for this object | |
847 | |
848 public: | |
849 // Public Data | |
850 char *_attrname; // Name of attribute | |
851 int _atype; // Either INS_ATTR or OP_ATTR | |
852 char *_attrdef; // C++ source which evaluates to constant | |
853 | |
854 // Public Methods | |
855 AttributeForm(char *attr, int type, char *attrdef); | |
856 ~AttributeForm(); | |
857 | |
858 // Dynamic type check | |
859 virtual AttributeForm *is_attribute() const; | |
860 | |
861 int type() { return id;} // return this object's "id" | |
862 | |
863 static const char* _ins_cost; // "ins_cost" | |
864 static const char* _op_cost; // "op_cost" | |
865 | |
866 void dump(); // Debug printer | |
867 void output(FILE *fp); // Write output files | |
868 }; | |
869 | |
870 //------------------------------Component-------------------------------------- | |
871 class Component : public Form { | |
872 private: | |
873 | |
874 public: | |
875 // Public Data | |
876 const char *_name; // Name of this component | |
877 const char *_type; // Type of this component | |
878 int _usedef; // Value of component | |
879 | |
880 // Public Methods | |
881 Component(const char *name, const char *type, int usedef); | |
882 ~Component(); | |
883 | |
884 | |
885 // Return 'true' if this use def info equals the parameter | |
886 bool is(int use_def_kill_enum) const; | |
887 // Return 'true' if this use def info is a superset of parameter | |
888 bool isa(int use_def_kill_enum) const; | |
889 int promote_use_def_info(int new_use_def); | |
890 const char *base_type(FormDict &globals); | |
891 // Form::DataType is_base_constant(FormDict &globals); | |
892 | |
893 void dump(); // Debug printer | |
894 void output(FILE *fp); // Write to output files | |
6850 | 895 const char* getUsedefName(); |
0 | 896 |
897 public: | |
898 // Implementation depends upon working bit intersection and union. | |
899 enum use_def_enum { | |
900 INVALID = 0x0, | |
901 USE = 0x1, | |
902 DEF = 0x2, USE_DEF = 0x3, | |
903 KILL = 0x4, USE_KILL = 0x5, | |
904 SYNTHETIC = 0x8, | |
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905 TEMP = USE | SYNTHETIC, |
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906 CALL = 0x10 |
0 | 907 }; |
908 }; | |
909 | |
910 | |
911 //------------------------------MatchNode-------------------------------------- | |
912 class MatchNode : public Form { | |
913 private: | |
914 | |
915 public: | |
916 // Public Data | |
917 const char *_result; // The name of the output of this node | |
918 const char *_name; // The name that appeared in the match rule | |
919 const char *_opType; // The Operation/Type matched | |
920 MatchNode *_lChild; // Left child in expression tree | |
921 MatchNode *_rChild; // Right child in expression tree | |
922 int _numleaves; // Sum of numleaves for all direct children | |
923 ArchDesc &_AD; // Reference to ArchDesc object | |
924 char *_internalop; // String representing internal operand | |
925 int _commutative_id; // id of commutative operation | |
926 | |
927 // Public Methods | |
928 MatchNode(ArchDesc &ad, const char *result = 0, const char *expr = 0, | |
929 const char *opType=0, MatchNode *lChild=NULL, | |
930 MatchNode *rChild=NULL); | |
931 MatchNode(ArchDesc &ad, MatchNode& mNode); // Shallow copy constructor; | |
932 MatchNode(ArchDesc &ad, MatchNode& mNode, int clone); // Construct clone | |
933 ~MatchNode(); | |
934 | |
935 // return 0 if not found: | |
936 // return 1 if found and position is incremented by operand offset in rule | |
937 bool find_name(const char *str, int &position) const; | |
938 bool find_type(const char *str, int &position) const; | |
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939 virtual void append_components(FormDict& locals, ComponentList& components, |
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940 bool def_flag = false) const; |
0 | 941 bool base_operand(uint &position, FormDict &globals, |
942 const char * &result, const char * &name, | |
943 const char * &opType) const; | |
944 // recursive count on operands | |
945 uint num_consts(FormDict &globals) const; | |
946 uint num_const_ptrs(FormDict &globals) const; | |
947 // recursive count of constants with specified type | |
948 uint num_consts(FormDict &globals, Form::DataType type) const; | |
949 // uint num_consts() const; // Local inspection only | |
950 int needs_ideal_memory_edge(FormDict &globals) const; | |
951 int needs_base_oop_edge() const; | |
952 | |
953 // Help build instruction predicates. Search for operand names. | |
954 void count_instr_names( Dict &names ); | |
955 int build_instr_pred( char *buf, const char *name, int cnt ); | |
956 void build_internalop( ); | |
957 | |
958 // Return the name of the operands associated with reducing to this operand: | |
959 // The result type, plus the left and right sides of the binary match | |
960 // Return NULL if there is no left or right hand side | |
961 bool sets_result() const; // rule "Set"s result of match | |
962 const char *reduce_right(FormDict &globals) const; | |
963 const char *reduce_left (FormDict &globals) const; | |
964 | |
965 // Recursive version of check in MatchRule | |
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966 int cisc_spill_match(FormDict& globals, RegisterForm* registers, |
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967 MatchNode* mRule2, const char* &operand, |
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968 const char* ®_type); |
0 | 969 int cisc_spill_merge(int left_result, int right_result); |
970 | |
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971 virtual bool equivalent(FormDict& globals, MatchNode* mNode2); |
0 | 972 |
973 void count_commutative_op(int& count); | |
974 void swap_commutative_op(bool atroot, int count); | |
975 | |
976 void dump(); | |
977 void output(FILE *fp); | |
978 }; | |
979 | |
980 //------------------------------MatchRule-------------------------------------- | |
981 class MatchRule : public MatchNode { | |
982 private: | |
983 | |
984 public: | |
985 // Public Data | |
986 const char *_machType; // Machine type index | |
987 int _depth; // Expression tree depth | |
988 char *_construct; // String representing C++ constructor code | |
989 int _numchilds; // Number of direct children | |
990 MatchRule *_next; // Pointer to next match rule | |
991 | |
992 // Public Methods | |
993 MatchRule(ArchDesc &ad); | |
994 MatchRule(ArchDesc &ad, MatchRule* mRule); // Shallow copy constructor; | |
995 MatchRule(ArchDesc &ad, MatchNode* mroot, int depth, char* construct, int numleaves); | |
996 ~MatchRule(); | |
997 | |
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998 virtual void append_components(FormDict& locals, ComponentList& components, bool def_flag = false) const; |
0 | 999 // Recursive call on all operands' match rules in my match rule. |
1000 bool base_operand(uint &position, FormDict &globals, | |
1001 const char * &result, const char * &name, | |
1002 const char * &opType) const; | |
1003 | |
1004 | |
1005 bool is_base_register(FormDict &globals) const; | |
1006 Form::DataType is_base_constant(FormDict &globals) const; | |
1007 bool is_chain_rule(FormDict &globals) const; | |
1008 int is_ideal_copy() const; | |
1009 int is_expensive() const; // node matches ideal 'CosD' | |
1010 bool is_ideal_if() const; // node matches ideal 'If' | |
1011 bool is_ideal_fastlock() const; // node matches ideal 'FastLock' | |
1012 bool is_ideal_jump() const; // node matches ideal 'Jump' | |
1013 bool is_ideal_membar() const; // node matches ideal 'MemBarXXX' | |
1014 bool is_ideal_loadPC() const; // node matches ideal 'LoadPC' | |
1015 bool is_ideal_box() const; // node matches ideal 'Box' | |
1016 bool is_ideal_goto() const; // node matches ideal 'Goto' | |
1017 bool is_ideal_loopEnd() const; // node matches ideal 'LoopEnd' | |
1018 bool is_ideal_bool() const; // node matches ideal 'Bool' | |
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1019 bool is_vector() const; // vector instruction |
0 | 1020 Form::DataType is_ideal_load() const;// node matches ideal 'LoadXNode' |
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1021 // Should antidep checks be disabled for this rule |
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1022 // See definition of MatchRule::skip_antidep_check |
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1023 bool skip_antidep_check() const; |
0 | 1024 Form::DataType is_ideal_store() const;// node matches ideal 'StoreXNode' |
1025 | |
1026 // Check if 'mRule2' is a cisc-spill variant of this MatchRule | |
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1027 int matchrule_cisc_spill_match(FormDict &globals, RegisterForm* registers, |
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1028 MatchRule* mRule2, const char* &operand, |
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1029 const char* ®_type); |
0 | 1030 |
1031 // Check if 'mRule2' is equivalent to this MatchRule | |
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1032 virtual bool equivalent(FormDict& globals, MatchNode* mRule2); |
0 | 1033 |
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1034 void matchrule_swap_commutative_op(const char* instr_ident, int count, int& match_rules_cnt); |
0 | 1035 |
1036 void dump(); | |
6850 | 1037 void output_short(FILE *fp); |
0 | 1038 void output(FILE *fp); |
1039 }; | |
1040 | |
1041 //------------------------------Attribute-------------------------------------- | |
1042 class Attribute : public Form { | |
1043 private: | |
1044 | |
1045 public: | |
1046 // Public Data | |
1047 char *_ident; // Name of predefined attribute | |
1048 char *_val; // C++ source which evaluates to constant | |
1049 int _atype; // Either INS_ATTR or OP_ATTR | |
1050 int int_val(ArchDesc &ad); // Return atoi(_val), ensuring syntax. | |
1051 | |
1052 // Public Methods | |
1053 Attribute(char *id, char* val, int type); | |
1054 ~Attribute(); | |
1055 | |
1056 void dump(); | |
1057 void output(FILE *fp); | |
1058 }; | |
1059 | |
1060 //------------------------------FormatRule------------------------------------- | |
1061 class FormatRule : public Form { | |
1062 private: | |
1063 | |
1064 public: | |
1065 // Public Data | |
1066 // There is an entry in _strings, perhaps NULL, that precedes each _rep_vars | |
1067 NameList _strings; // Strings passed through to tty->print | |
1068 NameList _rep_vars; // replacement variables | |
1069 char *_temp; // String representing the assembly code | |
1070 | |
1071 // Public Methods | |
1072 FormatRule(char *temp); | |
1073 ~FormatRule(); | |
1074 | |
1075 void dump(); | |
1076 void output(FILE *fp); | |
1077 }; | |
1972 | 1078 |
1079 #endif // SHARE_VM_ADLC_FORMSSEL_HPP |