Mercurial > hg > truffle
annotate src/share/vm/adlc/formssel.hpp @ 4058:59e515ee9354
7059047: EA: can't find initializing store with several CheckCastPP
Summary: Split adjust_escape_state() method into two methods to find initializing stores.
Reviewed-by: never
author | kvn |
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date | Mon, 07 Nov 2011 14:33:57 -0800 |
parents | c7b60b601eb4 |
children | f03a3c8bd5e5 |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_ADLC_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 |
2008 | 79 uint _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 | |
106 const char *_ins_pipe; // Instruction Scheduline description class | |
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 | |
114 // Public Methods | |
115 InstructForm(const char *id, bool ideal_only = false); | |
116 InstructForm(const char *id, InstructForm *instr, MatchRule *rule); | |
117 ~InstructForm(); | |
118 | |
119 // Dynamic type check | |
120 virtual InstructForm *is_instruction() const; | |
121 | |
122 virtual bool ideal_only() const; | |
123 | |
124 // This instruction sets a result | |
125 virtual bool sets_result() const; | |
126 // This instruction needs projections for additional DEFs or KILLs | |
127 virtual bool needs_projections(); | |
128 // This instruction needs extra nodes for temporary inputs | |
129 virtual bool has_temps(); | |
130 // This instruction defines or kills more than one object | |
131 virtual uint num_defs_or_kills(); | |
132 // This instruction has an expand rule? | |
133 virtual bool expands() const ; | |
134 // Return this instruction's first peephole rule, or NULL | |
135 virtual Peephole *peepholes() const; | |
136 // Add a peephole rule to this instruction | |
137 virtual void append_peephole(Peephole *peep); | |
138 | |
139 virtual bool is_pinned(FormDict &globals); // should be pinned inside block | |
140 virtual bool is_projection(FormDict &globals); // node requires projection | |
141 virtual bool is_parm(FormDict &globals); // node matches ideal 'Parm' | |
142 // ideal opcode enumeration | |
143 virtual const char *ideal_Opcode(FormDict &globals) const; | |
144 virtual int is_expensive() const; // node matches ideal 'CosD' | |
145 virtual int is_empty_encoding() const; // _size=0 and/or _insencode empty | |
146 virtual int is_tls_instruction() const; // tlsLoadP rule or ideal ThreadLocal | |
147 virtual int is_ideal_copy() const; // node matches ideal 'Copy*' | |
148 virtual bool is_ideal_if() const; // node matches ideal 'If' | |
149 virtual bool is_ideal_fastlock() const; // node matches 'FastLock' | |
150 virtual bool is_ideal_membar() const; // node matches ideal 'MemBarXXX' | |
151 virtual bool is_ideal_loadPC() const; // node matches ideal 'LoadPC' | |
152 virtual bool is_ideal_box() const; // node matches ideal 'Box' | |
153 virtual bool is_ideal_goto() const; // node matches ideal 'Goto' | |
154 virtual bool is_ideal_branch() const; // "" 'If' | 'Goto' | 'LoopEnd' | 'Jump' | |
155 virtual bool is_ideal_jump() const; // node matches ideal 'Jump' | |
156 virtual bool is_ideal_return() const; // node matches ideal 'Return' | |
157 virtual bool is_ideal_halt() const; // node matches ideal 'Halt' | |
158 virtual bool is_ideal_safepoint() const; // node matches 'SafePoint' | |
159 virtual bool is_ideal_nop() const; // node matches 'Nop' | |
160 virtual bool is_ideal_control() const; // control node | |
161 | |
162 virtual Form::CallType is_ideal_call() const; // matches ideal 'Call' | |
163 virtual Form::DataType is_ideal_load() const; // node matches ideal 'LoadXNode' | |
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164 // Should antidep checks be disabled for this Instruct |
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165 // See definition of MatchRule::skip_antidep_check |
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166 bool skip_antidep_check() const; |
0 | 167 virtual Form::DataType is_ideal_store() const;// node matches ideal 'StoreXNode' |
168 bool is_ideal_mem() const { return is_ideal_load() != Form::none || is_ideal_store() != Form::none; } | |
169 virtual uint two_address(FormDict &globals); // output reg must match input reg | |
170 // when chaining a constant to an instruction, return 'true' and set opType | |
171 virtual Form::DataType is_chain_of_constant(FormDict &globals); | |
172 virtual Form::DataType is_chain_of_constant(FormDict &globals, const char * &opType); | |
173 virtual Form::DataType is_chain_of_constant(FormDict &globals, const char * &opType, const char * &result_type); | |
174 | |
175 // Check if a simple chain rule | |
176 virtual bool is_simple_chain_rule(FormDict &globals) const; | |
177 | |
178 // check for structural rematerialization | |
179 virtual bool rematerialize(FormDict &globals, RegisterForm *registers); | |
180 | |
181 // loads from memory, so must check for anti-dependence | |
182 virtual bool needs_anti_dependence_check(FormDict &globals) const; | |
183 virtual int memory_operand(FormDict &globals) const; | |
184 bool is_wide_memory_kill(FormDict &globals) const; | |
185 | |
186 enum memory_operand_type { | |
187 NO_MEMORY_OPERAND = -1, | |
188 MANY_MEMORY_OPERANDS = 999999 | |
189 }; | |
190 | |
191 | |
192 // This instruction captures the machine-independent bottom_type | |
193 // Expected use is for pointer vs oop determination for LoadP | |
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194 virtual bool captures_bottom_type(FormDict& globals) const; |
0 | 195 |
196 virtual const char *cost(); // Access ins_cost attribute | |
197 virtual uint num_opnds(); // Count of num_opnds for MachNode class | |
198 virtual uint num_post_match_opnds(); | |
199 virtual uint num_consts(FormDict &globals) const;// Constants in match rule | |
200 // Constants in match rule with specified type | |
201 virtual uint num_consts(FormDict &globals, Form::DataType type) const; | |
202 | |
203 // Return the register class associated with 'leaf'. | |
204 virtual const char *out_reg_class(FormDict &globals); | |
205 | |
206 // number of ideal node inputs to skip | |
207 virtual uint oper_input_base(FormDict &globals); | |
208 | |
209 // Does this instruction need a base-oop edge? | |
210 int needs_base_oop_edge(FormDict &globals) const; | |
211 | |
212 // Build instruction predicates. If the user uses the same operand name | |
213 // twice, we need to check that the operands are pointer-eequivalent in | |
214 // the DFA during the labeling process. | |
215 Predicate *build_predicate(); | |
216 | |
217 virtual void build_components(); // top-level operands | |
218 // Return zero-based position in component list; -1 if not in list. | |
219 virtual int operand_position(const char *name, int usedef); | |
220 virtual int operand_position_format(const char *name); | |
221 | |
222 // Return zero-based position in component list; -1 if not in list. | |
223 virtual int label_position(); | |
224 virtual int method_position(); | |
225 // Return number of relocation entries needed for this instruction. | |
226 virtual uint reloc(FormDict &globals); | |
227 | |
228 const char *reduce_result(); | |
229 // Return the name of the operand on the right hand side of the binary match | |
230 // Return NULL if there is no right hand side | |
231 const char *reduce_right(FormDict &globals) const; | |
232 const char *reduce_left(FormDict &globals) const; | |
233 | |
234 // Base class for this instruction, MachNode except for calls | |
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235 virtual const char *mach_base_class(FormDict &globals) const; |
0 | 236 |
237 // Check if this instruction can cisc-spill to 'alternate' | |
238 bool cisc_spills_to(ArchDesc &AD, InstructForm *alternate); | |
239 InstructForm *cisc_spill_alternate() { return _cisc_spill_alternate; } | |
240 uint cisc_spill_operand() const { return _cisc_spill_operand; } | |
241 bool is_cisc_alternate() const { return _is_cisc_alternate; } | |
242 void set_cisc_alternate(bool val) { _is_cisc_alternate = val; } | |
243 const char *cisc_reg_mask_name() const { return _cisc_reg_mask_name; } | |
244 void set_cisc_reg_mask_name(const char *rm_name) { _cisc_reg_mask_name = rm_name; } | |
245 // Output cisc-method prototypes and method bodies | |
246 void declare_cisc_version(ArchDesc &AD, FILE *fp_cpp); | |
247 bool define_cisc_version (ArchDesc &AD, FILE *fp_cpp); | |
248 | |
249 bool check_branch_variant(ArchDesc &AD, InstructForm *short_branch); | |
250 | |
251 bool is_short_branch() { return _is_short_branch; } | |
252 void set_short_branch(bool val) { _is_short_branch = val; } | |
253 | |
2008 | 254 bool is_mach_constant() const { return _is_mach_constant; } |
255 void set_is_mach_constant(bool x) { _is_mach_constant = x; } | |
256 | |
0 | 257 InstructForm *short_branch_form() { return _short_branch_form; } |
258 bool has_short_branch_form() { return _short_branch_form != NULL; } | |
259 // Output short branch prototypes and method bodies | |
260 void declare_short_branch_methods(FILE *fp_cpp); | |
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261 bool define_short_branch_methods(ArchDesc &AD, FILE *fp_cpp); |
0 | 262 |
263 uint alignment() { return _alignment; } | |
264 void set_alignment(uint val) { _alignment = val; } | |
265 | |
266 // Seach through operands to determine operands unique positions. | |
267 void set_unique_opnds(); | |
268 uint num_unique_opnds() { return _num_uniq; } | |
269 uint unique_opnds_idx(int idx) { | |
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270 if( _uniq_idx != NULL && idx > 0 ) { |
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271 assert(idx < _uniq_idx_length, "out of bounds"); |
0 | 272 return _uniq_idx[idx]; |
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273 } else { |
0 | 274 return idx; |
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275 } |
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276 } |
0 | 277 |
278 // Operands which are only KILLs aren't part of the input array and | |
279 // require special handling in some cases. Their position in this | |
280 // operand list is higher than the number of unique operands. | |
281 bool is_noninput_operand(uint idx) { | |
282 return (idx >= num_unique_opnds()); | |
283 } | |
284 | |
285 // --------------------------- FILE *output_routines | |
286 // | |
287 // Generate the format call for the replacement variable | |
288 void rep_var_format(FILE *fp, const char *rep_var); | |
605 | 289 // Generate index values needed for determining the operand position |
0 | 290 void index_temps (FILE *fp, FormDict &globals, const char *prefix = "", const char *receiver = ""); |
291 // --------------------------- | |
292 | |
293 virtual bool verify(); // Check consistency after parsing | |
294 | |
295 virtual void dump(); // Debug printer | |
296 virtual void output(FILE *fp); // Write to output files | |
297 }; | |
298 | |
299 //------------------------------EncodeForm------------------------------------- | |
300 class EncodeForm : public Form { | |
301 private: | |
302 | |
303 public: | |
304 // Public Data | |
305 NameList _eclasses; // List of encode class names | |
306 Dict _encClass; // Map encode class names to EncClass objects | |
307 | |
308 // Public Methods | |
309 EncodeForm(); | |
310 ~EncodeForm(); | |
311 | |
312 EncClass *add_EncClass(const char *className); | |
313 EncClass *encClass(const char *className); | |
314 | |
315 const char *encClassPrototype(const char *className); | |
316 const char *encClassBody(const char *className); | |
317 | |
318 void dump(); // Debug printer | |
319 void output(FILE *fp); // Write info to output files | |
320 }; | |
321 | |
322 //------------------------------EncClass--------------------------------------- | |
323 class EncClass : public Form { | |
324 public: | |
325 // NameList for parameter type and name | |
326 NameList _parameter_type; | |
327 NameList _parameter_name; | |
328 | |
329 // Breakdown the encoding into strings separated by $replacement_variables | |
330 // There is an entry in _strings, perhaps NULL, that precedes each _rep_vars | |
331 NameList _code; // Strings passed through to tty->print | |
332 NameList _rep_vars; // replacement variables | |
333 | |
334 NameList _parameters; // Locally defined names | |
335 FormDict _localNames; // Table of components & their types | |
336 | |
337 public: | |
338 // Public Data | |
339 const char *_name; // encoding class name | |
340 | |
341 // Public Methods | |
342 EncClass(const char *name); | |
343 ~EncClass(); | |
344 | |
345 // --------------------------- Parameters | |
346 // Add a parameter <type,name> pair | |
347 void add_parameter(const char *parameter_type, const char *parameter_name); | |
348 // Verify operand types in parameter list | |
349 bool check_parameter_types(FormDict &globals); | |
350 // Obtain the zero-based index corresponding to a replacement variable | |
351 int rep_var_index(const char *rep_var); | |
352 int num_args() { return _parameter_name.count(); } | |
353 | |
354 // --------------------------- Code Block | |
355 // Add code | |
605 | 356 void add_code(const char *string_preceding_replacement_var); |
0 | 357 // Add a replacement variable or one of its subfields |
358 // Subfields are stored with a leading '$' | |
359 void add_rep_var(char *replacement_var); | |
360 | |
361 bool verify(); | |
362 void dump(); | |
363 void output(FILE *fp); | |
364 }; | |
365 | |
366 //------------------------------MachNode--------------------------------------- | |
367 class MachNodeForm: public Form { | |
368 private: | |
369 | |
370 public: | |
371 char *_ident; // Name of this instruction | |
372 const char *_machnode_pipe; // Instruction Scheduline description class | |
373 | |
374 // Public Methods | |
375 MachNodeForm(char *id); | |
376 ~MachNodeForm(); | |
377 | |
378 virtual MachNodeForm *is_machnode() const; | |
379 | |
380 void dump(); // Debug printer | |
381 void output(FILE *fp); // Write info to output files | |
382 }; | |
383 | |
384 //------------------------------Opcode----------------------------------------- | |
385 class Opcode : public Form { | |
386 private: | |
387 | |
388 public: | |
389 // Public Data | |
390 // Strings representing instruction opcodes, user defines placement in emit | |
391 char *_primary; | |
392 char *_secondary; | |
393 char *_tertiary; | |
394 | |
395 enum opcode_type { | |
396 NOT_AN_OPCODE = -1, | |
397 PRIMARY = 1, | |
398 SECONDARY = 2, | |
399 TERTIARY = 3 | |
400 }; | |
401 | |
402 // Public Methods | |
403 Opcode(char *primary, char *secondary, char *tertiary); | |
404 ~Opcode(); | |
405 | |
406 static Opcode::opcode_type as_opcode_type(const char *designator); | |
407 | |
408 void dump(); | |
409 void output(FILE *fp); | |
410 | |
411 // --------------------------- FILE *output_routines | |
415
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412 bool print_opcode(FILE *fp, Opcode::opcode_type desired_opcode); |
0 | 413 }; |
414 | |
415 //------------------------------InsEncode-------------------------------------- | |
416 class InsEncode : public Form { | |
417 private: | |
418 // Public Data (access directly only for reads) | |
419 // The encodings can only have the values predefined by the ADLC: | |
420 // blank, RegReg, RegMem, MemReg, ... | |
421 NameList _encoding; | |
422 // NameList _parameter; | |
423 // The parameters for each encoding are preceeded by a NameList::_signal | |
424 // and follow the parameters for the previous encoding. | |
425 | |
426 // char *_encode; // Type of instruction encoding | |
427 | |
428 public: | |
429 // Public Methods | |
430 InsEncode(); | |
431 ~InsEncode(); | |
432 | |
433 // Add "encode class name" and its parameters | |
434 NameAndList *add_encode(char *encode_method_name); | |
435 // Parameters are added to the returned "NameAndList" by the parser | |
436 | |
437 // Access the list of encodings | |
438 void reset(); | |
439 const char *encode_class_iter(); | |
440 | |
441 // Returns the number of arguments to the current encoding in the iteration | |
442 int current_encoding_num_args() { | |
443 return ((NameAndList*)_encoding.current())->count(); | |
444 } | |
445 | |
446 // --------------------------- Parameters | |
447 // The following call depends upon position within encode_class_iteration | |
448 // | |
449 // Obtain parameter name from zero based index | |
450 const char *rep_var_name(InstructForm &inst, uint param_no); | |
451 // --------------------------- | |
452 | |
453 void dump(); | |
454 void output(FILE *fp); | |
455 }; | |
456 | |
457 //------------------------------Effect----------------------------------------- | |
458 class Effect : public Form { | |
459 private: | |
460 | |
461 public: | |
462 // Public Data | |
463 const char *_name; // Pre-defined name for effect | |
464 int _use_def; // Enumeration value of effect | |
465 | |
466 // Public Methods | |
467 Effect(const char *name); // Constructor | |
468 ~Effect(); // Destructor | |
469 | |
470 // Dynamic type check | |
471 virtual Effect *is_effect() const; | |
472 | |
473 // Return 'true' if this use def info equals the parameter | |
474 bool is(int use_def_kill_enum) const; | |
475 // Return 'true' if this use def info is a superset of parameter | |
476 bool isa(int use_def_kill_enum) const; | |
477 | |
478 void dump(); // Debug printer | |
479 void output(FILE *fp); // Write info to output files | |
480 }; | |
481 | |
482 //------------------------------ExpandRule------------------------------------- | |
483 class ExpandRule : public Form { | |
484 private: | |
485 NameList _expand_instrs; // ordered list of instructions and operands | |
486 | |
487 public: | |
488 // Public Data | |
489 NameList _newopers; // List of newly created operands | |
490 Dict _newopconst; // Map new operands to their constructors | |
491 | |
492 void add_instruction(NameAndList *instruction_name_and_operand_list); | |
493 void reset_instructions(); | |
494 NameAndList *iter_instructions(); | |
495 | |
496 // Public Methods | |
497 ExpandRule(); // Constructor | |
498 ~ExpandRule(); // Destructor | |
499 | |
500 void dump(); // Debug printer | |
501 void output(FILE *fp); // Write info to output files | |
502 }; | |
503 | |
504 //------------------------------RewriteRule------------------------------------ | |
505 class RewriteRule : public Form { | |
506 private: | |
507 | |
508 public: | |
509 // Public Data | |
510 SourceForm *_condition; // Rewrite condition code | |
511 InstructForm *_instrs; // List of instructions to expand to | |
512 OperandForm *_opers; // List of operands generated by expand | |
513 char *_tempParams; // Hold string until parser is finished. | |
514 char *_tempBlock; // Hold string until parser is finished. | |
515 | |
516 // Public Methods | |
517 RewriteRule(char* params, char* block) ; | |
518 ~RewriteRule(); // Destructor | |
519 void dump(); // Debug printer | |
520 void output(FILE *fp); // Write info to output files | |
521 }; | |
522 | |
523 | |
524 //==============================Operands======================================= | |
525 //------------------------------OpClassForm------------------------------------ | |
526 class OpClassForm : public Form { | |
527 public: | |
528 // Public Data | |
529 const char *_ident; // Name of this operand | |
530 NameList _oplst; // List of operand forms included in class | |
531 | |
532 // Public Methods | |
533 OpClassForm(const char *id); | |
534 ~OpClassForm(); | |
535 | |
536 // dynamic type check | |
537 virtual OpClassForm *is_opclass() const; | |
538 virtual Form::InterfaceType interface_type(FormDict &globals) const; | |
539 virtual bool stack_slots_only(FormDict &globals) const; | |
540 | |
541 virtual bool is_cisc_mem(FormDict &globals) const; | |
542 | |
543 | |
544 // Min and Max opcodes of operands in this operand class | |
545 int _minCode; | |
546 int _maxCode; | |
547 | |
548 virtual bool ideal_only() const; | |
549 virtual void dump(); // Debug printer | |
550 virtual void output(FILE *fp); // Write to output files | |
551 }; | |
552 | |
553 //------------------------------OperandForm------------------------------------ | |
554 class OperandForm : public OpClassForm { | |
555 private: | |
556 bool _ideal_only; // Not a user-defined instruction | |
557 | |
558 public: | |
559 // Public Data | |
560 NameList _parameters; // Locally defined names | |
561 FormDict _localNames; // Table of components & their types | |
562 MatchRule *_matrule; // Matching rule for this operand | |
563 Interface *_interface; // Encoding interface for this operand | |
564 Attribute *_attribs; // List of Attribute rules | |
565 Predicate *_predicate; // Predicate test for this operand | |
566 Constraint *_constraint; // Constraint Rule for this operand | |
567 ConstructRule *_construct; // Construction of operand data after matching | |
568 FormatRule *_format; // Format for assembly generation | |
569 NameList _classes; // List of opclasses which contain this oper | |
570 | |
571 ComponentList _components; // | |
572 | |
573 // Public Methods | |
574 OperandForm(const char *id); | |
575 OperandForm(const char *id, bool ideal_only); | |
576 ~OperandForm(); | |
577 | |
578 // Dynamic type check | |
579 virtual OperandForm *is_operand() const; | |
580 | |
581 virtual bool ideal_only() const; | |
582 virtual Form::InterfaceType interface_type(FormDict &globals) const; | |
583 virtual bool stack_slots_only(FormDict &globals) const; | |
584 | |
585 virtual const char *cost(); // Access ins_cost attribute | |
586 virtual uint num_leaves() const;// Leaves in complex operand | |
587 // Constants in operands' match rules | |
588 virtual uint num_consts(FormDict &globals) const; | |
589 // Constants in operand's match rule with specified type | |
590 virtual uint num_consts(FormDict &globals, Form::DataType type) const; | |
591 // Pointer Constants in operands' match rules | |
592 virtual uint num_const_ptrs(FormDict &globals) const; | |
593 // The number of input edges in the machine world == num_leaves - num_consts | |
594 virtual uint num_edges(FormDict &globals) const; | |
595 | |
596 // Check if this operand is usable for cisc-spilling | |
597 virtual bool is_cisc_reg(FormDict &globals) const; | |
598 | |
599 // node matches ideal 'Bool', grab condition codes from the ideal world | |
600 virtual bool is_ideal_bool() const; | |
601 | |
602 // Has an integer constant suitable for spill offsets | |
603 bool has_conI(FormDict &globals) const { | |
604 return (num_consts(globals,idealI) == 1) && !is_ideal_bool(); } | |
605 bool has_conL(FormDict &globals) const { | |
606 return (num_consts(globals,idealL) == 1) && !is_ideal_bool(); } | |
607 | |
608 // Node is user-defined operand for an sRegX | |
609 virtual Form::DataType is_user_name_for_sReg() const; | |
610 | |
611 // Return ideal type, if there is a single ideal type for this operand | |
612 virtual const char *ideal_type(FormDict &globals, RegisterForm *registers = NULL) const; | |
613 // If there is a single ideal type for this interface field, return it. | |
614 virtual const char *interface_ideal_type(FormDict &globals, | |
615 const char *field_name) const; | |
616 | |
617 // Return true if this operand represents a bound register class | |
618 bool is_bound_register() const; | |
619 | |
620 // Return the Register class for this operand. Returns NULL if | |
621 // operand isn't a register form. | |
622 RegClass* get_RegClass() const; | |
623 | |
624 virtual bool is_interface_field(const char *field_name, | |
625 const char * &value) const; | |
626 | |
627 // If this operand has a single ideal type, return its type | |
628 virtual Form::DataType simple_type(FormDict &globals) const; | |
629 // If this operand is an ideal constant, return its type | |
630 virtual Form::DataType is_base_constant(FormDict &globals) const; | |
631 | |
632 // "true" if this operand is a simple type that is swallowed | |
633 virtual bool swallowed(FormDict &globals) const; | |
634 | |
635 // Return register class name if a constraint specifies the register class. | |
636 virtual const char *constrained_reg_class() const; | |
637 // Return the register class associated with 'leaf'. | |
638 virtual const char *in_reg_class(uint leaf, FormDict &globals); | |
639 | |
640 // Build component list from MatchRule and operand's parameter list | |
641 virtual void build_components(); // top-level operands | |
642 | |
643 // Return zero-based position in component list; -1 if not in list. | |
644 virtual int operand_position(const char *name, int usedef); | |
645 | |
646 // Return zero-based position in component list; -1 if not in list. | |
647 virtual int constant_position(FormDict &globals, const Component *comp); | |
648 virtual int constant_position(FormDict &globals, const char *local_name); | |
649 // Return the operand form corresponding to the given index, else NULL. | |
650 virtual OperandForm *constant_operand(FormDict &globals, uint const_index); | |
651 | |
652 // Return zero-based position in component list; -1 if not in list. | |
653 virtual int register_position(FormDict &globals, const char *regname); | |
654 | |
655 const char *reduce_result() const; | |
656 // Return the name of the operand on the right hand side of the binary match | |
657 // Return NULL if there is no right hand side | |
658 const char *reduce_right(FormDict &globals) const; | |
659 const char *reduce_left(FormDict &globals) const; | |
660 | |
661 | |
662 // --------------------------- FILE *output_routines | |
663 // | |
664 // Output code for disp_is_oop, if true. | |
665 void disp_is_oop(FILE *fp, FormDict &globals); | |
666 // Generate code for internal and external format methods | |
667 void int_format(FILE *fp, FormDict &globals, uint index); | |
668 void ext_format(FILE *fp, FormDict &globals, uint index); | |
669 void format_constant(FILE *fp, uint con_index, uint con_type); | |
670 // Output code to access the value of the index'th constant | |
671 void access_constant(FILE *fp, FormDict &globals, | |
672 uint con_index); | |
673 // --------------------------- | |
674 | |
675 | |
676 virtual void dump(); // Debug printer | |
677 virtual void output(FILE *fp); // Write to output files | |
678 }; | |
679 | |
680 //------------------------------Constraint------------------------------------- | |
681 class Constraint : public Form { | |
682 private: | |
683 | |
684 public: | |
685 const char *_func; // Constraint function | |
686 const char *_arg; // function's argument | |
687 | |
688 // Public Methods | |
689 Constraint(const char *func, const char *arg); // Constructor | |
690 ~Constraint(); | |
691 | |
692 bool stack_slots_only() const; | |
693 | |
694 void dump(); // Debug printer | |
695 void output(FILE *fp); // Write info to output files | |
696 }; | |
697 | |
698 //------------------------------Predicate-------------------------------------- | |
699 class Predicate : public Form { | |
700 private: | |
701 | |
702 public: | |
703 // Public Data | |
704 char *_pred; // C++ source string for predicate | |
705 | |
706 // Public Methods | |
707 Predicate(char *pr); | |
708 ~Predicate(); | |
709 | |
710 void dump(); | |
711 void output(FILE *fp); | |
712 }; | |
713 | |
714 //------------------------------Interface-------------------------------------- | |
715 class Interface : public Form { | |
716 private: | |
717 | |
718 public: | |
719 // Public Data | |
720 const char *_name; // String representing the interface name | |
721 | |
722 // Public Methods | |
723 Interface(const char *name); | |
724 ~Interface(); | |
725 | |
726 virtual Form::InterfaceType interface_type(FormDict &globals) const; | |
727 | |
728 RegInterface *is_RegInterface(); | |
729 MemInterface *is_MemInterface(); | |
730 ConstInterface *is_ConstInterface(); | |
731 CondInterface *is_CondInterface(); | |
732 | |
733 | |
734 void dump(); | |
735 void output(FILE *fp); | |
736 }; | |
737 | |
738 //------------------------------RegInterface----------------------------------- | |
739 class RegInterface : public Interface { | |
740 private: | |
741 | |
742 public: | |
743 // Public Methods | |
744 RegInterface(); | |
745 ~RegInterface(); | |
746 | |
747 void dump(); | |
748 void output(FILE *fp); | |
749 }; | |
750 | |
751 //------------------------------ConstInterface--------------------------------- | |
752 class ConstInterface : public Interface { | |
753 private: | |
754 | |
755 public: | |
756 // Public Methods | |
757 ConstInterface(); | |
758 ~ConstInterface(); | |
759 | |
760 void dump(); | |
761 void output(FILE *fp); | |
762 }; | |
763 | |
764 //------------------------------MemInterface----------------------------------- | |
765 class MemInterface : public Interface { | |
766 private: | |
767 | |
768 public: | |
769 // Public Data | |
770 char *_base; // Base address | |
771 char *_index; // index | |
772 char *_scale; // scaling factor | |
773 char *_disp; // displacement | |
774 | |
775 // Public Methods | |
776 MemInterface(char *base, char *index, char *scale, char *disp); | |
777 ~MemInterface(); | |
778 | |
779 void dump(); | |
780 void output(FILE *fp); | |
781 }; | |
782 | |
783 //------------------------------CondInterface---------------------------------- | |
784 class CondInterface : public Interface { | |
785 private: | |
786 | |
787 public: | |
788 const char *_equal; | |
789 const char *_not_equal; | |
790 const char *_less; | |
791 const char *_greater_equal; | |
792 const char *_less_equal; | |
793 const char *_greater; | |
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794 const char *_equal_format; |
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795 const char *_not_equal_format; |
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796 const char *_less_format; |
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797 const char *_greater_equal_format; |
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798 const char *_less_equal_format; |
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799 const char *_greater_format; |
0 | 800 |
801 // Public Methods | |
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802 CondInterface(const char* equal, const char* equal_format, |
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803 const char* not_equal, const char* not_equal_format, |
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804 const char* less, const char* less_format, |
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805 const char* greater_equal, const char* greater_equal_format, |
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806 const char* less_equal, const char* less_equal_format, |
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807 const char* greater, const char* greater_format); |
0 | 808 ~CondInterface(); |
809 | |
810 void dump(); | |
811 void output(FILE *fp); | |
812 }; | |
813 | |
814 //------------------------------ConstructRule---------------------------------- | |
815 class ConstructRule : public Form { | |
816 private: | |
817 | |
818 public: | |
819 // Public Data | |
820 char *_expr; // String representing the match expression | |
821 char *_construct; // String representing C++ constructor code | |
822 | |
823 // Public Methods | |
824 ConstructRule(char *cnstr); | |
825 ~ConstructRule(); | |
826 | |
827 void dump(); | |
828 void output(FILE *fp); | |
829 }; | |
830 | |
831 | |
832 //==============================Shared========================================= | |
833 //------------------------------AttributeForm---------------------------------- | |
834 class AttributeForm : public Form { | |
835 private: | |
836 // counters for unique instruction or operand ID | |
837 static int _insId; // user-defined machine instruction types | |
838 static int _opId; // user-defined operand types | |
839 | |
840 int id; // hold type for this object | |
841 | |
842 public: | |
843 // Public Data | |
844 char *_attrname; // Name of attribute | |
845 int _atype; // Either INS_ATTR or OP_ATTR | |
846 char *_attrdef; // C++ source which evaluates to constant | |
847 | |
848 // Public Methods | |
849 AttributeForm(char *attr, int type, char *attrdef); | |
850 ~AttributeForm(); | |
851 | |
852 // Dynamic type check | |
853 virtual AttributeForm *is_attribute() const; | |
854 | |
855 int type() { return id;} // return this object's "id" | |
856 | |
857 static const char* _ins_cost; // "ins_cost" | |
858 static const char* _op_cost; // "op_cost" | |
859 | |
860 void dump(); // Debug printer | |
861 void output(FILE *fp); // Write output files | |
862 }; | |
863 | |
864 //------------------------------Component-------------------------------------- | |
865 class Component : public Form { | |
866 private: | |
867 | |
868 public: | |
869 // Public Data | |
870 const char *_name; // Name of this component | |
871 const char *_type; // Type of this component | |
872 int _usedef; // Value of component | |
873 | |
874 // Public Methods | |
875 Component(const char *name, const char *type, int usedef); | |
876 ~Component(); | |
877 | |
878 | |
879 // Return 'true' if this use def info equals the parameter | |
880 bool is(int use_def_kill_enum) const; | |
881 // Return 'true' if this use def info is a superset of parameter | |
882 bool isa(int use_def_kill_enum) const; | |
883 int promote_use_def_info(int new_use_def); | |
884 const char *base_type(FormDict &globals); | |
885 // Form::DataType is_base_constant(FormDict &globals); | |
886 | |
887 void dump(); // Debug printer | |
888 void output(FILE *fp); // Write to output files | |
889 | |
890 public: | |
891 // Implementation depends upon working bit intersection and union. | |
892 enum use_def_enum { | |
893 INVALID = 0x0, | |
894 USE = 0x1, | |
895 DEF = 0x2, USE_DEF = 0x3, | |
896 KILL = 0x4, USE_KILL = 0x5, | |
897 SYNTHETIC = 0x8, | |
898 TEMP = USE | SYNTHETIC | |
899 }; | |
900 }; | |
901 | |
902 | |
903 //------------------------------MatchNode-------------------------------------- | |
904 class MatchNode : public Form { | |
905 private: | |
906 | |
907 public: | |
908 // Public Data | |
909 const char *_result; // The name of the output of this node | |
910 const char *_name; // The name that appeared in the match rule | |
911 const char *_opType; // The Operation/Type matched | |
912 MatchNode *_lChild; // Left child in expression tree | |
913 MatchNode *_rChild; // Right child in expression tree | |
914 int _numleaves; // Sum of numleaves for all direct children | |
915 ArchDesc &_AD; // Reference to ArchDesc object | |
916 char *_internalop; // String representing internal operand | |
917 int _commutative_id; // id of commutative operation | |
918 | |
919 // Public Methods | |
920 MatchNode(ArchDesc &ad, const char *result = 0, const char *expr = 0, | |
921 const char *opType=0, MatchNode *lChild=NULL, | |
922 MatchNode *rChild=NULL); | |
923 MatchNode(ArchDesc &ad, MatchNode& mNode); // Shallow copy constructor; | |
924 MatchNode(ArchDesc &ad, MatchNode& mNode, int clone); // Construct clone | |
925 ~MatchNode(); | |
926 | |
927 // return 0 if not found: | |
928 // return 1 if found and position is incremented by operand offset in rule | |
929 bool find_name(const char *str, int &position) const; | |
930 bool find_type(const char *str, int &position) const; | |
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931 virtual void append_components(FormDict& locals, ComponentList& components, |
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932 bool def_flag = false) const; |
0 | 933 bool base_operand(uint &position, FormDict &globals, |
934 const char * &result, const char * &name, | |
935 const char * &opType) const; | |
936 // recursive count on operands | |
937 uint num_consts(FormDict &globals) const; | |
938 uint num_const_ptrs(FormDict &globals) const; | |
939 // recursive count of constants with specified type | |
940 uint num_consts(FormDict &globals, Form::DataType type) const; | |
941 // uint num_consts() const; // Local inspection only | |
942 int needs_ideal_memory_edge(FormDict &globals) const; | |
943 int needs_base_oop_edge() const; | |
944 | |
945 // Help build instruction predicates. Search for operand names. | |
946 void count_instr_names( Dict &names ); | |
947 int build_instr_pred( char *buf, const char *name, int cnt ); | |
948 void build_internalop( ); | |
949 | |
950 // Return the name of the operands associated with reducing to this operand: | |
951 // The result type, plus the left and right sides of the binary match | |
952 // Return NULL if there is no left or right hand side | |
953 bool sets_result() const; // rule "Set"s result of match | |
954 const char *reduce_right(FormDict &globals) const; | |
955 const char *reduce_left (FormDict &globals) const; | |
956 | |
957 // Recursive version of check in MatchRule | |
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958 int cisc_spill_match(FormDict& globals, RegisterForm* registers, |
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959 MatchNode* mRule2, const char* &operand, |
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960 const char* ®_type); |
0 | 961 int cisc_spill_merge(int left_result, int right_result); |
962 | |
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963 virtual bool equivalent(FormDict& globals, MatchNode* mNode2); |
0 | 964 |
965 void count_commutative_op(int& count); | |
966 void swap_commutative_op(bool atroot, int count); | |
967 | |
968 void dump(); | |
969 void output(FILE *fp); | |
970 }; | |
971 | |
972 //------------------------------MatchRule-------------------------------------- | |
973 class MatchRule : public MatchNode { | |
974 private: | |
975 | |
976 public: | |
977 // Public Data | |
978 const char *_machType; // Machine type index | |
979 int _depth; // Expression tree depth | |
980 char *_construct; // String representing C++ constructor code | |
981 int _numchilds; // Number of direct children | |
982 MatchRule *_next; // Pointer to next match rule | |
983 | |
984 // Public Methods | |
985 MatchRule(ArchDesc &ad); | |
986 MatchRule(ArchDesc &ad, MatchRule* mRule); // Shallow copy constructor; | |
987 MatchRule(ArchDesc &ad, MatchNode* mroot, int depth, char* construct, int numleaves); | |
988 ~MatchRule(); | |
989 | |
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990 virtual void append_components(FormDict& locals, ComponentList& components, bool def_flag = false) const; |
0 | 991 // Recursive call on all operands' match rules in my match rule. |
992 bool base_operand(uint &position, FormDict &globals, | |
993 const char * &result, const char * &name, | |
994 const char * &opType) const; | |
995 | |
996 | |
997 bool is_base_register(FormDict &globals) const; | |
998 Form::DataType is_base_constant(FormDict &globals) const; | |
999 bool is_chain_rule(FormDict &globals) const; | |
1000 int is_ideal_copy() const; | |
1001 int is_expensive() const; // node matches ideal 'CosD' | |
1002 bool is_ideal_if() const; // node matches ideal 'If' | |
1003 bool is_ideal_fastlock() const; // node matches ideal 'FastLock' | |
1004 bool is_ideal_jump() const; // node matches ideal 'Jump' | |
1005 bool is_ideal_membar() const; // node matches ideal 'MemBarXXX' | |
1006 bool is_ideal_loadPC() const; // node matches ideal 'LoadPC' | |
1007 bool is_ideal_box() const; // node matches ideal 'Box' | |
1008 bool is_ideal_goto() const; // node matches ideal 'Goto' | |
1009 bool is_ideal_loopEnd() const; // node matches ideal 'LoopEnd' | |
1010 bool is_ideal_bool() const; // node matches ideal 'Bool' | |
1011 Form::DataType is_ideal_load() const;// node matches ideal 'LoadXNode' | |
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1012 // Should antidep checks be disabled for this rule |
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1013 // See definition of MatchRule::skip_antidep_check |
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1014 bool skip_antidep_check() const; |
0 | 1015 Form::DataType is_ideal_store() const;// node matches ideal 'StoreXNode' |
1016 | |
1017 // Check if 'mRule2' is a cisc-spill variant of this MatchRule | |
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1018 int matchrule_cisc_spill_match(FormDict &globals, RegisterForm* registers, |
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1019 MatchRule* mRule2, const char* &operand, |
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1020 const char* ®_type); |
0 | 1021 |
1022 // Check if 'mRule2' is equivalent to this MatchRule | |
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1023 virtual bool equivalent(FormDict& globals, MatchNode* mRule2); |
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1025 void matchrule_swap_commutative_op(const char* instr_ident, int count, int& match_rules_cnt); |
0 | 1026 |
1027 void dump(); | |
1028 void output(FILE *fp); | |
1029 }; | |
1030 | |
1031 //------------------------------Attribute-------------------------------------- | |
1032 class Attribute : public Form { | |
1033 private: | |
1034 | |
1035 public: | |
1036 // Public Data | |
1037 char *_ident; // Name of predefined attribute | |
1038 char *_val; // C++ source which evaluates to constant | |
1039 int _atype; // Either INS_ATTR or OP_ATTR | |
1040 int int_val(ArchDesc &ad); // Return atoi(_val), ensuring syntax. | |
1041 | |
1042 // Public Methods | |
1043 Attribute(char *id, char* val, int type); | |
1044 ~Attribute(); | |
1045 | |
1046 void dump(); | |
1047 void output(FILE *fp); | |
1048 }; | |
1049 | |
1050 //------------------------------FormatRule------------------------------------- | |
1051 class FormatRule : public Form { | |
1052 private: | |
1053 | |
1054 public: | |
1055 // Public Data | |
1056 // There is an entry in _strings, perhaps NULL, that precedes each _rep_vars | |
1057 NameList _strings; // Strings passed through to tty->print | |
1058 NameList _rep_vars; // replacement variables | |
1059 char *_temp; // String representing the assembly code | |
1060 | |
1061 // Public Methods | |
1062 FormatRule(char *temp); | |
1063 ~FormatRule(); | |
1064 | |
1065 void dump(); | |
1066 void output(FILE *fp); | |
1067 }; | |
1972 | 1068 |
1069 #endif // SHARE_VM_ADLC_FORMSSEL_HPP |