Mercurial > hg > graal-compiler
annotate src/share/vm/adlc/adlparse.cpp @ 4712:e7dead7e90af
7117303: VM uses non-monotonic time source and complains that it is non-monotonic
Summary: Replaces calls to os::javaTimeMillis(), which does not (and cannot) guarantee monotonicity, in GC code to an equivalent expression that uses os::javaTimeNanos(). os::javaTimeNanos is guaranteed monotonically non-decreasing if the underlying platform provides a monotonic time source. Changes in OS files are to make use of the newly defined constants in globalDefinitions.hpp.
Reviewed-by: dholmes, ysr
author | johnc |
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date | Mon, 19 Dec 2011 10:02:05 -0800 |
parents | db2e64ca2d5a |
children | 8c92982cbbc4 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 // ADLPARSE.CPP - Architecture Description Language Parser | |
26 // Authors: Chris Vick and Mike Paleczny | |
27 #include "adlc.hpp" | |
28 | |
29 //----------------------------ADLParser---------------------------------------- | |
30 // Create a new ADL parser | |
31 ADLParser::ADLParser(FileBuff& buffer, ArchDesc& archDesc) | |
32 : _buf(buffer), _AD(archDesc), | |
33 _globalNames(archDesc.globalNames()) { | |
34 _AD._syntax_errs = _AD._semantic_errs = 0; // No errors so far this file | |
35 _AD._warnings = 0; // No warnings either | |
36 _curline = _ptr = NULL; // No pointers into buffer yet | |
37 | |
38 _preproc_depth = 0; | |
39 _preproc_not_taken = 0; | |
40 | |
41 // Delimit command-line definitions from in-file definitions: | |
42 _AD._preproc_list.add_signal(); | |
43 } | |
44 | |
45 //------------------------------~ADLParser------------------------------------- | |
46 // Delete an ADL parser. | |
47 ADLParser::~ADLParser() { | |
48 if (!_AD._quiet_mode) | |
49 fprintf(stderr,"---------------------------- Errors and Warnings ----------------------------\n"); | |
50 #ifndef ASSERT | |
51 fprintf(stderr, "**************************************************************\n"); | |
52 fprintf(stderr, "***** WARNING: ASSERT is undefined, assertions disabled. *****\n"); | |
53 fprintf(stderr, "**************************************************************\n"); | |
54 #endif | |
55 if( _AD._syntax_errs + _AD._semantic_errs + _AD._warnings == 0 ) { | |
56 if (!_AD._quiet_mode) | |
57 fprintf(stderr,"No errors or warnings to report from phase-1 parse.\n" ); | |
58 } | |
59 else { | |
60 if( _AD._syntax_errs ) { // Any syntax errors? | |
61 fprintf(stderr,"%s: Found %d syntax error", _buf._fp->_name, _AD._syntax_errs); | |
62 if( _AD._syntax_errs > 1 ) fprintf(stderr,"s.\n\n"); | |
63 else fprintf(stderr,".\n\n"); | |
64 } | |
65 if( _AD._semantic_errs ) { // Any semantic errors? | |
66 fprintf(stderr,"%s: Found %d semantic error", _buf._fp->_name, _AD._semantic_errs); | |
67 if( _AD._semantic_errs > 1 ) fprintf(stderr,"s.\n\n"); | |
68 else fprintf(stderr,".\n\n"); | |
69 } | |
70 if( _AD._warnings ) { // Any warnings? | |
71 fprintf(stderr,"%s: Found %d warning", _buf._fp->_name, _AD._warnings); | |
72 if( _AD._warnings > 1 ) fprintf(stderr,"s.\n\n"); | |
73 else fprintf(stderr,".\n\n"); | |
74 } | |
75 } | |
76 if (!_AD._quiet_mode) | |
77 fprintf(stderr,"-----------------------------------------------------------------------------\n"); | |
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78 _AD._TotalLines += linenum()-1; // -1 for overshoot in "nextline" routine |
0 | 79 |
80 // Write out information we have stored | |
81 // // UNIXism == fsync(stderr); | |
82 } | |
83 | |
84 //------------------------------parse------------------------------------------ | |
85 // Each top-level keyword should appear as the first non-whitespace on a line. | |
86 // | |
87 void ADLParser::parse() { | |
88 char *ident; | |
89 | |
90 // Iterate over the lines in the file buffer parsing Level 1 objects | |
91 for( next_line(); _curline != NULL; next_line()) { | |
92 _ptr = _curline; // Reset ptr to start of new line | |
93 skipws(); // Skip any leading whitespace | |
94 ident = get_ident(); // Get first token | |
95 if (ident == NULL) { // Empty line | |
96 continue; // Get the next line | |
97 } | |
2008 | 98 if (!strcmp(ident, "instruct")) instr_parse(); |
0 | 99 else if (!strcmp(ident, "operand")) oper_parse(); |
100 else if (!strcmp(ident, "opclass")) opclass_parse(); | |
101 else if (!strcmp(ident, "ins_attrib")) ins_attr_parse(); | |
102 else if (!strcmp(ident, "op_attrib")) op_attr_parse(); | |
103 else if (!strcmp(ident, "source")) source_parse(); | |
104 else if (!strcmp(ident, "source_hpp")) source_hpp_parse(); | |
105 else if (!strcmp(ident, "register")) reg_parse(); | |
106 else if (!strcmp(ident, "frame")) frame_parse(); | |
107 else if (!strcmp(ident, "encode")) encode_parse(); | |
108 else if (!strcmp(ident, "pipeline")) pipe_parse(); | |
109 else if (!strcmp(ident, "definitions")) definitions_parse(); | |
110 else if (!strcmp(ident, "peephole")) peep_parse(); | |
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111 else if (!strcmp(ident, "#line")) preproc_line(); |
0 | 112 else if (!strcmp(ident, "#define")) preproc_define(); |
113 else if (!strcmp(ident, "#undef")) preproc_undef(); | |
114 else { | |
115 parse_err(SYNERR, "expected one of - instruct, operand, ins_attrib, op_attrib, source, register, pipeline, encode\n Found %s",ident); | |
116 } | |
117 } | |
118 | |
119 // Done with parsing, check consistency. | |
120 | |
121 if (_preproc_depth != 0) { | |
122 parse_err(SYNERR, "End of file inside #ifdef"); | |
123 } | |
124 | |
125 // AttributeForms ins_cost and op_cost must be defined for default behaviour | |
126 if (_globalNames[AttributeForm::_ins_cost] == NULL) { | |
127 parse_err(SEMERR, "Did not declare 'ins_cost' attribute"); | |
128 } | |
129 if (_globalNames[AttributeForm::_op_cost] == NULL) { | |
130 parse_err(SEMERR, "Did not declare 'op_cost' attribute"); | |
131 } | |
132 } | |
133 | |
134 // ******************** Private Level 1 Parse Functions ******************** | |
135 //------------------------------instr_parse------------------------------------ | |
136 // Parse the contents of an instruction definition, build the InstructForm to | |
137 // represent that instruction, and add it to the InstructForm list. | |
138 void ADLParser::instr_parse(void) { | |
139 char *ident; | |
140 InstructForm *instr; | |
141 MatchRule *rule; | |
142 int match_rules_cnt = 0; | |
143 | |
144 // First get the name of the instruction | |
145 if( (ident = get_unique_ident(_globalNames,"instruction")) == NULL ) | |
146 return; | |
147 instr = new InstructForm(ident); // Create new instruction form | |
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148 instr->_linenum = linenum(); |
0 | 149 _globalNames.Insert(ident, instr); // Add name to the name table |
150 // Debugging Stuff | |
151 if (_AD._adl_debug > 1) | |
152 fprintf(stderr,"Parsing Instruction Form %s\n", ident); | |
153 | |
154 // Then get the operands | |
155 skipws(); | |
156 if (_curchar != '(') { | |
157 parse_err(SYNERR, "missing '(' in instruct definition\n"); | |
158 } | |
159 // Parse the operand list | |
160 else get_oplist(instr->_parameters, instr->_localNames); | |
161 skipws(); // Skip leading whitespace | |
162 // Check for block delimiter | |
163 if ( (_curchar != '%') | |
164 || ( next_char(), (_curchar != '{')) ) { | |
165 parse_err(SYNERR, "missing '%{' in instruction definition\n"); | |
166 return; | |
167 } | |
168 next_char(); // Maintain the invariant | |
169 do { | |
170 ident = get_ident(); // Grab next identifier | |
171 if (ident == NULL) { | |
172 parse_err(SYNERR, "keyword identifier expected at %c\n", _curchar); | |
173 continue; | |
174 } | |
175 if (!strcmp(ident, "predicate")) instr->_predicate = pred_parse(); | |
176 else if (!strcmp(ident, "match")) { | |
177 // Allow one instruction have several match rules. | |
178 rule = instr->_matrule; | |
179 if (rule == NULL) { | |
180 // This is first match rule encountered | |
181 rule = match_parse(instr->_localNames); | |
182 if (rule) { | |
183 instr->_matrule = rule; | |
184 // Special case the treatment of Control instructions. | |
185 if( instr->is_ideal_control() ) { | |
186 // Control instructions return a special result, 'Universe' | |
187 rule->_result = "Universe"; | |
188 } | |
189 // Check for commutative operations with tree operands. | |
190 matchrule_clone_and_swap(rule, instr->_ident, match_rules_cnt); | |
191 } | |
192 } else { | |
193 // Find the end of the match rule list | |
194 while (rule->_next != NULL) | |
195 rule = rule->_next; | |
196 // Add the new match rule to the list | |
197 rule->_next = match_parse(instr->_localNames); | |
198 if (rule->_next) { | |
199 rule = rule->_next; | |
200 if( instr->is_ideal_control() ) { | |
201 parse_err(SYNERR, "unique match rule expected for %s\n", rule->_name); | |
202 return; | |
203 } | |
204 assert(match_rules_cnt < 100," too many match rule clones"); | |
205 char* buf = (char*) malloc(strlen(instr->_ident) + 4); | |
206 sprintf(buf, "%s_%d", instr->_ident, match_rules_cnt++); | |
207 rule->_result = buf; | |
208 // Check for commutative operations with tree operands. | |
209 matchrule_clone_and_swap(rule, instr->_ident, match_rules_cnt); | |
210 } | |
211 } | |
212 } | |
213 else if (!strcmp(ident, "encode")) { | |
214 parse_err(SYNERR, "Instructions specify ins_encode, not encode\n"); | |
215 } | |
2008 | 216 else if (!strcmp(ident, "ins_encode")) ins_encode_parse(*instr); |
217 else if (!strcmp(ident, "opcode")) instr->_opcode = opcode_parse(instr); | |
218 else if (!strcmp(ident, "size")) instr->_size = size_parse(instr); | |
219 else if (!strcmp(ident, "effect")) effect_parse(instr); | |
220 else if (!strcmp(ident, "expand")) instr->_exprule = expand_parse(instr); | |
221 else if (!strcmp(ident, "rewrite")) instr->_rewrule = rewrite_parse(); | |
0 | 222 else if (!strcmp(ident, "constraint")) { |
223 parse_err(SYNERR, "Instructions do not specify a constraint\n"); | |
224 } | |
225 else if (!strcmp(ident, "construct")) { | |
226 parse_err(SYNERR, "Instructions do not specify a construct\n"); | |
227 } | |
2008 | 228 else if (!strcmp(ident, "format")) instr->_format = format_parse(); |
0 | 229 else if (!strcmp(ident, "interface")) { |
230 parse_err(SYNERR, "Instructions do not specify an interface\n"); | |
231 } | |
2008 | 232 else if (!strcmp(ident, "ins_pipe")) ins_pipe_parse(*instr); |
0 | 233 else { // Done with staticly defined parts of instruction definition |
234 // Check identifier to see if it is the name of an attribute | |
235 const Form *form = _globalNames[ident]; | |
236 AttributeForm *attr = form ? form->is_attribute() : NULL; | |
237 if( attr && (attr->_atype == INS_ATTR) ) { | |
238 // Insert the new attribute into the linked list. | |
239 Attribute *temp = attr_parse(ident); | |
240 temp->_next = instr->_attribs; | |
241 instr->_attribs = temp; | |
242 } else { | |
243 parse_err(SYNERR, "expected one of:\n predicate, match, encode, or the name of an instruction attribute at %s\n", ident); | |
244 } | |
245 } | |
246 skipws(); | |
247 } while(_curchar != '%'); | |
248 next_char(); | |
249 if (_curchar != '}') { | |
250 parse_err(SYNERR, "missing '%}' in instruction definition\n"); | |
251 return; | |
252 } | |
253 // Check for "Set" form of chain rule | |
254 adjust_set_rule(instr); | |
255 if (_AD._pipeline ) { | |
256 if( instr->expands() ) { | |
257 if( instr->_ins_pipe ) | |
258 parse_err(WARN, "ins_pipe and expand rule both specified for instruction \"%s\"; ins_pipe will be unused\n", instr->_ident); | |
259 } else { | |
260 if( !instr->_ins_pipe ) | |
261 parse_err(WARN, "No ins_pipe specified for instruction \"%s\"\n", instr->_ident); | |
262 } | |
263 } | |
264 // Add instruction to tail of instruction list | |
265 _AD.addForm(instr); | |
266 | |
267 // Create instruction form for each additional match rule | |
268 rule = instr->_matrule; | |
269 if (rule != NULL) { | |
270 rule = rule->_next; | |
271 while (rule != NULL) { | |
272 ident = (char*)rule->_result; | |
273 InstructForm *clone = new InstructForm(ident, instr, rule); // Create new instruction form | |
274 _globalNames.Insert(ident, clone); // Add name to the name table | |
275 // Debugging Stuff | |
276 if (_AD._adl_debug > 1) | |
277 fprintf(stderr,"Parsing Instruction Form %s\n", ident); | |
278 // Check for "Set" form of chain rule | |
279 adjust_set_rule(clone); | |
280 // Add instruction to tail of instruction list | |
281 _AD.addForm(clone); | |
282 rule = rule->_next; | |
283 clone->_matrule->_next = NULL; // One match rule per clone | |
284 } | |
285 } | |
286 } | |
287 | |
288 //------------------------------matchrule_clone_and_swap----------------------- | |
289 // Check for commutative operations with subtree operands, | |
290 // create clones and swap operands. | |
291 void ADLParser::matchrule_clone_and_swap(MatchRule* rule, const char* instr_ident, int& match_rules_cnt) { | |
292 // Check for commutative operations with tree operands. | |
293 int count = 0; | |
294 rule->count_commutative_op(count); | |
295 if (count > 0) { | |
296 // Clone match rule and swap commutative operation's operands. | |
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297 rule->matchrule_swap_commutative_op(instr_ident, count, match_rules_cnt); |
0 | 298 } |
299 } | |
300 | |
301 //------------------------------adjust_set_rule-------------------------------- | |
302 // Check for "Set" form of chain rule | |
303 void ADLParser::adjust_set_rule(InstructForm *instr) { | |
304 if (instr->_matrule == NULL || instr->_matrule->_rChild == NULL) return; | |
305 const char *rch = instr->_matrule->_rChild->_opType; | |
306 const Form *frm = _globalNames[rch]; | |
307 if( (! strcmp(instr->_matrule->_opType,"Set")) && | |
308 frm && frm->is_operand() && (! frm->ideal_only()) ) { | |
309 // Previous implementation, which missed leaP*, but worked for loadCon* | |
310 unsigned position = 0; | |
311 const char *result = NULL; | |
312 const char *name = NULL; | |
313 const char *optype = NULL; | |
314 MatchNode *right = instr->_matrule->_rChild; | |
315 if (right->base_operand(position, _globalNames, result, name, optype)) { | |
316 position = 1; | |
317 const char *result2 = NULL; | |
318 const char *name2 = NULL; | |
319 const char *optype2 = NULL; | |
320 // Can not have additional base operands in right side of match! | |
321 if ( ! right->base_operand( position, _globalNames, result2, name2, optype2) ) { | |
2008 | 322 if (instr->_predicate != NULL) |
323 parse_err(SYNERR, "ADLC does not support instruction chain rules with predicates"); | |
0 | 324 // Chain from input _ideal_operand_type_, |
325 // Needed for shared roots of match-trees | |
326 ChainList *lst = (ChainList *)_AD._chainRules[optype]; | |
327 if (lst == NULL) { | |
328 lst = new ChainList(); | |
329 _AD._chainRules.Insert(optype, lst); | |
330 } | |
331 if (!lst->search(instr->_matrule->_lChild->_opType)) { | |
332 const char *cost = instr->cost(); | |
333 if (cost == NULL) { | |
334 cost = ((AttributeForm*)_globalNames[AttributeForm::_ins_cost])->_attrdef; | |
335 } | |
336 // The ADLC does not support chaining from the ideal operand type | |
337 // of a predicated user-defined operand | |
338 if( frm->is_operand() == NULL || frm->is_operand()->_predicate == NULL ) { | |
339 lst->insert(instr->_matrule->_lChild->_opType,cost,instr->_ident); | |
340 } | |
341 } | |
342 // Chain from input _user_defined_operand_type_, | |
343 lst = (ChainList *)_AD._chainRules[result]; | |
344 if (lst == NULL) { | |
345 lst = new ChainList(); | |
346 _AD._chainRules.Insert(result, lst); | |
347 } | |
348 if (!lst->search(instr->_matrule->_lChild->_opType)) { | |
349 const char *cost = instr->cost(); | |
350 if (cost == NULL) { | |
351 cost = ((AttributeForm*)_globalNames[AttributeForm::_ins_cost])->_attrdef; | |
352 } | |
353 // It is safe to chain from the top-level user-defined operand even | |
354 // if it has a predicate, since the predicate is checked before | |
355 // the user-defined type is available. | |
356 lst->insert(instr->_matrule->_lChild->_opType,cost,instr->_ident); | |
357 } | |
358 } else { | |
359 // May have instruction chain rule if root of right-tree is an ideal | |
360 OperandForm *rightOp = _globalNames[right->_opType]->is_operand(); | |
361 if( rightOp ) { | |
362 const Form *rightRoot = _globalNames[rightOp->_matrule->_opType]; | |
363 if( rightRoot && rightRoot->ideal_only() ) { | |
364 const char *chain_op = NULL; | |
365 if( rightRoot->is_instruction() ) | |
366 chain_op = rightOp->_ident; | |
367 if( chain_op ) { | |
368 // Look-up the operation in chain rule table | |
369 ChainList *lst = (ChainList *)_AD._chainRules[chain_op]; | |
370 if (lst == NULL) { | |
371 lst = new ChainList(); | |
372 _AD._chainRules.Insert(chain_op, lst); | |
373 } | |
374 // if (!lst->search(instr->_matrule->_lChild->_opType)) { | |
375 const char *cost = instr->cost(); | |
376 if (cost == NULL) { | |
377 cost = ((AttributeForm*)_globalNames[AttributeForm::_ins_cost])->_attrdef; | |
378 } | |
379 // This chains from a top-level operand whose predicate, if any, | |
380 // has been checked. | |
381 lst->insert(instr->_matrule->_lChild->_opType,cost,instr->_ident); | |
382 // } | |
383 } | |
384 } | |
385 } | |
386 } // end chain rule from right-tree's ideal root | |
387 } | |
388 } | |
389 } | |
390 | |
391 | |
392 //------------------------------oper_parse------------------------------------- | |
393 void ADLParser::oper_parse(void) { | |
394 char *ident; | |
395 OperandForm *oper; | |
396 AttributeForm *attr; | |
397 MatchRule *rule; | |
398 | |
399 // First get the name of the operand | |
400 skipws(); | |
401 if( (ident = get_unique_ident(_globalNames,"operand")) == NULL ) | |
402 return; | |
403 oper = new OperandForm(ident); // Create new operand form | |
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404 oper->_linenum = linenum(); |
0 | 405 _globalNames.Insert(ident, oper); // Add name to the name table |
406 | |
407 // Debugging Stuff | |
408 if (_AD._adl_debug > 1) fprintf(stderr,"Parsing Operand Form %s\n", ident); | |
409 | |
410 // Get the component operands | |
411 skipws(); | |
412 if (_curchar != '(') { | |
413 parse_err(SYNERR, "missing '(' in operand definition\n"); | |
414 return; | |
415 } | |
416 else get_oplist(oper->_parameters, oper->_localNames); // Parse the component operand list | |
417 skipws(); | |
418 // Check for block delimiter | |
419 if ((_curchar != '%') || (*(_ptr+1) != '{')) { // If not open block | |
420 parse_err(SYNERR, "missing '%c{' in operand definition\n","%"); | |
421 return; | |
422 } | |
423 next_char(); next_char(); // Skip over "%{" symbol | |
424 do { | |
425 ident = get_ident(); // Grab next identifier | |
426 if (ident == NULL) { | |
427 parse_err(SYNERR, "keyword identifier expected at %c\n", _curchar); | |
428 continue; | |
429 } | |
430 if (!strcmp(ident, "predicate")) oper->_predicate = pred_parse(); | |
431 else if (!strcmp(ident, "match")) { | |
432 // Find the end of the match rule list | |
433 rule = oper->_matrule; | |
434 if (rule) { | |
435 while (rule->_next) rule = rule->_next; | |
436 // Add the new match rule to the list | |
437 rule->_next = match_parse(oper->_localNames); | |
438 if (rule->_next) { | |
439 rule->_next->_result = oper->_ident; | |
440 } | |
441 } | |
442 else { | |
443 // This is first match rule encountered | |
444 oper->_matrule = match_parse(oper->_localNames); | |
445 if (oper->_matrule) { | |
446 oper->_matrule->_result = oper->_ident; | |
447 } | |
448 } | |
449 } | |
450 else if (!strcmp(ident, "encode")) oper->_interface = interface_parse(); | |
451 else if (!strcmp(ident, "ins_encode")) { | |
452 parse_err(SYNERR, "Operands specify 'encode', not 'ins_encode'\n"); | |
453 } | |
454 else if (!strcmp(ident, "opcode")) { | |
455 parse_err(SYNERR, "Operands do not specify an opcode\n"); | |
456 } | |
457 else if (!strcmp(ident, "effect")) { | |
458 parse_err(SYNERR, "Operands do not specify an effect\n"); | |
459 } | |
460 else if (!strcmp(ident, "expand")) { | |
461 parse_err(SYNERR, "Operands do not specify an expand\n"); | |
462 } | |
463 else if (!strcmp(ident, "rewrite")) { | |
464 parse_err(SYNERR, "Operands do not specify a rewrite\n"); | |
465 } | |
466 else if (!strcmp(ident, "constraint"))oper->_constraint= constraint_parse(); | |
467 else if (!strcmp(ident, "construct")) oper->_construct = construct_parse(); | |
468 else if (!strcmp(ident, "format")) oper->_format = format_parse(); | |
469 else if (!strcmp(ident, "interface")) oper->_interface = interface_parse(); | |
470 // Check identifier to see if it is the name of an attribute | |
471 else if (((attr = _globalNames[ident]->is_attribute()) != NULL) && | |
472 (attr->_atype == OP_ATTR)) oper->_attribs = attr_parse(ident); | |
473 else { | |
474 parse_err(SYNERR, "expected one of - constraint, predicate, match, encode, format, construct, or the name of a defined operand attribute at %s\n", ident); | |
475 } | |
476 skipws(); | |
477 } while(_curchar != '%'); | |
478 next_char(); | |
479 if (_curchar != '}') { | |
480 parse_err(SYNERR, "missing '%}' in operand definition\n"); | |
481 return; | |
482 } | |
483 // Add operand to tail of operand list | |
484 _AD.addForm(oper); | |
485 } | |
486 | |
487 //------------------------------opclass_parse---------------------------------- | |
488 // Operand Classes are a block with a comma delimited list of operand names | |
489 void ADLParser::opclass_parse(void) { | |
490 char *ident; | |
491 OpClassForm *opc; | |
492 OperandForm *opForm; | |
493 | |
494 // First get the name of the operand class | |
495 skipws(); | |
496 if( (ident = get_unique_ident(_globalNames,"opclass")) == NULL ) | |
497 return; | |
498 opc = new OpClassForm(ident); // Create new operand class form | |
499 _globalNames.Insert(ident, opc); // Add name to the name table | |
500 | |
501 // Debugging Stuff | |
502 if (_AD._adl_debug > 1) | |
503 fprintf(stderr,"Parsing Operand Class Form %s\n", ident); | |
504 | |
505 // Get the list of operands | |
506 skipws(); | |
507 if (_curchar != '(') { | |
508 parse_err(SYNERR, "missing '(' in operand definition\n"); | |
509 return; | |
510 } | |
511 do { | |
512 next_char(); // Skip past open paren or comma | |
513 ident = get_ident(); // Grab next identifier | |
514 if (ident == NULL) { | |
515 parse_err(SYNERR, "keyword identifier expected at %c\n", _curchar); | |
516 continue; | |
517 } | |
518 // Check identifier to see if it is the name of an operand | |
519 const Form *form = _globalNames[ident]; | |
520 opForm = form ? form->is_operand() : NULL; | |
521 if ( opForm ) { | |
522 opc->_oplst.addName(ident); // Add operand to opclass list | |
523 opForm->_classes.addName(opc->_ident);// Add opclass to operand list | |
524 } | |
525 else { | |
526 parse_err(SYNERR, "expected name of a defined operand at %s\n", ident); | |
527 } | |
528 skipws(); // skip trailing whitespace | |
529 } while (_curchar == ','); // Check for the comma | |
530 // Check for closing ')' | |
531 if (_curchar != ')') { | |
532 parse_err(SYNERR, "missing ')' or ',' in opclass definition\n"); | |
533 return; | |
534 } | |
535 next_char(); // Consume the ')' | |
536 skipws(); | |
537 // Check for closing ';' | |
538 if (_curchar != ';') { | |
539 parse_err(SYNERR, "missing ';' in opclass definition\n"); | |
540 return; | |
541 } | |
542 next_char(); // Consume the ';' | |
543 // Add operand to tail of operand list | |
544 _AD.addForm(opc); | |
545 } | |
546 | |
547 //------------------------------ins_attr_parse--------------------------------- | |
548 void ADLParser::ins_attr_parse(void) { | |
549 char *ident; | |
550 char *aexpr; | |
551 AttributeForm *attrib; | |
552 | |
553 // get name for the instruction attribute | |
554 skipws(); // Skip leading whitespace | |
555 if( (ident = get_unique_ident(_globalNames,"inst_attrib")) == NULL ) | |
556 return; | |
557 // Debugging Stuff | |
558 if (_AD._adl_debug > 1) fprintf(stderr,"Parsing Ins_Attribute Form %s\n", ident); | |
559 | |
560 // Get default value of the instruction attribute | |
561 skipws(); // Skip whitespace | |
562 if ((aexpr = get_paren_expr("attribute default expression string")) == NULL) { | |
563 parse_err(SYNERR, "missing '(' in ins_attrib definition\n"); | |
564 return; | |
565 } | |
566 // Debug Stuff | |
567 if (_AD._adl_debug > 1) fprintf(stderr,"Attribute Expression: %s\n", aexpr); | |
568 | |
569 // Check for terminator | |
570 if (_curchar != ';') { | |
571 parse_err(SYNERR, "missing ';' in ins_attrib definition\n"); | |
572 return; | |
573 } | |
574 next_char(); // Advance past the ';' | |
575 | |
576 // Construct the attribute, record global name, and store in ArchDesc | |
577 attrib = new AttributeForm(ident, INS_ATTR, aexpr); | |
578 _globalNames.Insert(ident, attrib); // Add name to the name table | |
579 _AD.addForm(attrib); | |
580 } | |
581 | |
582 //------------------------------op_attr_parse---------------------------------- | |
583 void ADLParser::op_attr_parse(void) { | |
584 char *ident; | |
585 char *aexpr; | |
586 AttributeForm *attrib; | |
587 | |
588 // get name for the operand attribute | |
589 skipws(); // Skip leading whitespace | |
590 if( (ident = get_unique_ident(_globalNames,"op_attrib")) == NULL ) | |
591 return; | |
592 // Debugging Stuff | |
593 if (_AD._adl_debug > 1) fprintf(stderr,"Parsing Op_Attribute Form %s\n", ident); | |
594 | |
595 // Get default value of the instruction attribute | |
596 skipws(); // Skip whitespace | |
597 if ((aexpr = get_paren_expr("attribute default expression string")) == NULL) { | |
598 parse_err(SYNERR, "missing '(' in op_attrib definition\n"); | |
599 return; | |
600 } | |
601 // Debug Stuff | |
602 if (_AD._adl_debug > 1) fprintf(stderr,"Attribute Expression: %s\n", aexpr); | |
603 | |
604 // Check for terminator | |
605 if (_curchar != ';') { | |
606 parse_err(SYNERR, "missing ';' in op_attrib definition\n"); | |
607 return; | |
608 } | |
609 next_char(); // Advance past the ';' | |
610 | |
611 // Construct the attribute, record global name, and store in ArchDesc | |
612 attrib = new AttributeForm(ident, OP_ATTR, aexpr); | |
613 _globalNames.Insert(ident, attrib); | |
614 _AD.addForm(attrib); | |
615 } | |
616 | |
617 //------------------------------definitions_parse----------------------------------- | |
618 void ADLParser::definitions_parse(void) { | |
619 skipws(); // Skip leading whitespace | |
620 if (_curchar == '%' && *(_ptr+1) == '{') { | |
621 next_char(); next_char(); // Skip "%{" | |
622 skipws(); | |
623 while (_curchar != '%' && *(_ptr+1) != '}') { | |
624 // Process each definition until finding closing string "%}" | |
625 char *token = get_ident(); | |
626 if (token == NULL) { | |
627 parse_err(SYNERR, "missing identifier inside definitions block.\n"); | |
628 return; | |
629 } | |
630 if (strcmp(token,"int_def")==0) { int_def_parse(); } | |
631 // if (strcmp(token,"str_def")==0) { str_def_parse(); } | |
632 skipws(); | |
633 } | |
634 } | |
635 else { | |
636 parse_err(SYNERR, "Missing %%{ ... %%} block after definitions keyword.\n"); | |
637 return; | |
638 } | |
639 } | |
640 | |
641 //------------------------------int_def_parse---------------------------------- | |
642 // Parse Example: | |
643 // int_def MEMORY_REF_COST ( 200, DEFAULT_COST * 2); | |
644 // <keyword> <name> ( <int_value>, <description> ); | |
645 // | |
646 void ADLParser::int_def_parse(void) { | |
647 char *name = NULL; // Name of definition | |
648 char *value = NULL; // its value, | |
649 int int_value = -1; // positive values only | |
650 char *description = NULL; // textual description | |
651 | |
652 // Get definition name | |
653 skipws(); // Skip whitespace | |
654 name = get_ident(); | |
655 if (name == NULL) { | |
656 parse_err(SYNERR, "missing definition name after int_def\n"); | |
657 return; | |
658 } | |
659 | |
660 // Check for value of int_def dname( integer_value [, string_expression ] ) | |
661 skipws(); | |
662 if (_curchar == '(') { | |
663 | |
664 // Parse the integer value. | |
665 next_char(); | |
666 value = get_ident(); | |
667 if (value == NULL) { | |
668 parse_err(SYNERR, "missing value in int_def\n"); | |
669 return; | |
670 } | |
671 if( !is_int_token(value, int_value) ) { | |
672 parse_err(SYNERR, "value in int_def is not recognized as integer\n"); | |
673 return; | |
674 } | |
675 skipws(); | |
676 | |
677 // Check for description | |
678 if (_curchar == ',') { | |
679 next_char(); // skip ',' | |
680 | |
681 description = get_expr("int_def description", ")"); | |
682 if (description == NULL) { | |
683 parse_err(SYNERR, "invalid or missing description in int_def\n"); | |
684 return; | |
685 } | |
686 trim(description); | |
687 } | |
688 | |
689 if (_curchar != ')') { | |
690 parse_err(SYNERR, "missing ')' in register definition statement\n"); | |
691 return; | |
692 } | |
693 next_char(); | |
694 } | |
695 | |
696 // Check for closing ';' | |
697 skipws(); | |
698 if (_curchar != ';') { | |
699 parse_err(SYNERR, "missing ';' after int_def\n"); | |
700 return; | |
701 } | |
702 next_char(); // move past ';' | |
703 | |
704 // Debug Stuff | |
705 if (_AD._adl_debug > 1) { | |
706 fprintf(stderr,"int_def: %s ( %s, %s )\n", name, | |
707 (value), (description ? description : "")); | |
708 } | |
709 | |
710 // Record new definition. | |
711 Expr *expr = new Expr(name, description, int_value, int_value); | |
712 const Expr *old_expr = _AD.globalDefs().define(name, expr); | |
713 if (old_expr != NULL) { | |
714 parse_err(SYNERR, "Duplicate definition\n"); | |
715 return; | |
716 } | |
717 | |
718 return; | |
719 } | |
720 | |
721 | |
722 //------------------------------source_parse----------------------------------- | |
723 void ADLParser::source_parse(void) { | |
724 SourceForm *source; // Encode class for instruction/operand | |
725 char *rule = NULL; // String representation of encode rule | |
726 | |
727 skipws(); // Skip leading whitespace | |
728 if ( (rule = find_cpp_block("source block")) == NULL ) { | |
729 parse_err(SYNERR, "incorrect or missing block for 'source'.\n"); | |
730 return; | |
731 } | |
732 // Debug Stuff | |
733 if (_AD._adl_debug > 1) fprintf(stderr,"Source Form: %s\n", rule); | |
734 | |
735 source = new SourceForm(rule); // Build new Source object | |
736 _AD.addForm(source); | |
737 // skipws(); | |
738 } | |
739 | |
740 //------------------------------source_hpp_parse------------------------------- | |
741 // Parse a source_hpp %{ ... %} block. | |
742 // The code gets stuck into the ad_<arch>.hpp file. | |
743 // If the source_hpp block appears before the register block in the AD | |
744 // file, it goes up at the very top of the ad_<arch>.hpp file, so that | |
745 // it can be used by register encodings, etc. Otherwise, it goes towards | |
746 // the bottom, where it's useful as a global definition to *.cpp files. | |
747 void ADLParser::source_hpp_parse(void) { | |
748 char *rule = NULL; // String representation of encode rule | |
749 | |
750 skipws(); // Skip leading whitespace | |
751 if ( (rule = find_cpp_block("source_hpp block")) == NULL ) { | |
752 parse_err(SYNERR, "incorrect or missing block for 'source_hpp'.\n"); | |
753 return; | |
754 } | |
755 // Debug Stuff | |
756 if (_AD._adl_debug > 1) fprintf(stderr,"Header Form: %s\n", rule); | |
757 | |
758 if (_AD.get_registers() == NULL) { | |
759 // Very early in the file, before reg_defs, we collect pre-headers. | |
760 PreHeaderForm* pre_header = new PreHeaderForm(rule); | |
761 _AD.addForm(pre_header); | |
762 } else { | |
763 // Normally, we collect header info, placed at the bottom of the hpp file. | |
764 HeaderForm* header = new HeaderForm(rule); | |
765 _AD.addForm(header); | |
766 } | |
767 } | |
768 | |
769 //------------------------------reg_parse-------------------------------------- | |
770 void ADLParser::reg_parse(void) { | |
771 | |
772 // Create the RegisterForm for the architecture description. | |
773 RegisterForm *regBlock = new RegisterForm(); // Build new Source object | |
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774 regBlock->_linenum = linenum(); |
0 | 775 _AD.addForm(regBlock); |
776 | |
777 skipws(); // Skip leading whitespace | |
778 if (_curchar == '%' && *(_ptr+1) == '{') { | |
779 next_char(); next_char(); // Skip "%{" | |
780 skipws(); | |
781 while (_curchar != '%' && *(_ptr+1) != '}') { | |
782 char *token = get_ident(); | |
783 if (token == NULL) { | |
784 parse_err(SYNERR, "missing identifier inside register block.\n"); | |
785 return; | |
786 } | |
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787 if (strcmp(token,"reg_def")==0) { reg_def_parse(); } |
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788 else if (strcmp(token,"reg_class")==0) { reg_class_parse(); } |
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789 else if (strcmp(token,"alloc_class")==0) { alloc_class_parse(); } |
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790 else if (strcmp(token,"#define")==0) { preproc_define(); } |
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791 else { parse_err(SYNERR, "bad token %s inside register block.\n", token); break; } |
0 | 792 skipws(); |
793 } | |
794 } | |
795 else { | |
796 parse_err(SYNERR, "Missing %c{ ... %c} block after register keyword.\n",'%','%'); | |
797 return; | |
798 } | |
799 | |
800 // Add reg_class spill_regs | |
801 regBlock->addSpillRegClass(); | |
802 } | |
803 | |
804 //------------------------------encode_parse----------------------------------- | |
805 void ADLParser::encode_parse(void) { | |
806 EncodeForm *encBlock; // Information about instruction/operand encoding | |
807 char *desc = NULL; // String representation of encode rule | |
808 | |
809 _AD.getForm(&encBlock); | |
810 if ( encBlock == NULL) { | |
811 // Create the EncodeForm for the architecture description. | |
812 encBlock = new EncodeForm(); // Build new Source object | |
813 _AD.addForm(encBlock); | |
814 } | |
815 | |
816 skipws(); // Skip leading whitespace | |
817 if (_curchar == '%' && *(_ptr+1) == '{') { | |
818 next_char(); next_char(); // Skip "%{" | |
819 skipws(); | |
820 while (_curchar != '%' && *(_ptr+1) != '}') { | |
821 char *token = get_ident(); | |
822 if (token == NULL) { | |
823 parse_err(SYNERR, "missing identifier inside encoding block.\n"); | |
824 return; | |
825 } | |
826 if (strcmp(token,"enc_class")==0) { enc_class_parse(); } | |
827 skipws(); | |
828 } | |
829 } | |
830 else { | |
831 parse_err(SYNERR, "Missing %c{ ... %c} block after encode keyword.\n",'%','%'); | |
832 return; | |
833 } | |
834 } | |
835 | |
836 //------------------------------enc_class_parse-------------------------------- | |
837 void ADLParser::enc_class_parse(void) { | |
838 char *ec_name; // Name of encoding class being defined | |
839 | |
840 // Get encoding class name | |
841 skipws(); // Skip whitespace | |
842 ec_name = get_ident(); | |
843 if (ec_name == NULL) { | |
844 parse_err(SYNERR, "missing encoding class name after encode.\n"); | |
845 return; | |
846 } | |
847 | |
848 EncClass *encoding = _AD._encode->add_EncClass(ec_name); | |
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849 encoding->_linenum = linenum(); |
0 | 850 |
851 skipws(); // Skip leading whitespace | |
852 // Check for optional parameter list | |
853 if (_curchar == '(') { | |
854 do { | |
855 char *pType = NULL; // parameter type | |
856 char *pName = NULL; // parameter name | |
857 | |
858 next_char(); // skip open paren & comma characters | |
859 skipws(); | |
860 if (_curchar == ')') break; | |
861 | |
862 // Get parameter type | |
863 pType = get_ident(); | |
864 if (pType == NULL) { | |
865 parse_err(SYNERR, "parameter type expected at %c\n", _curchar); | |
866 return; | |
867 } | |
868 | |
869 skipws(); | |
870 // Get parameter name | |
871 pName = get_ident(); | |
872 if (pName == NULL) { | |
873 parse_err(SYNERR, "parameter name expected at %c\n", _curchar); | |
874 return; | |
875 } | |
876 | |
877 // Record parameter type and name | |
878 encoding->add_parameter( pType, pName ); | |
879 | |
880 skipws(); | |
881 } while(_curchar == ','); | |
882 | |
883 if (_curchar != ')') parse_err(SYNERR, "missing ')'\n"); | |
884 else { | |
885 next_char(); // Skip ')' | |
886 } | |
887 } // Done with parameter list | |
888 | |
889 skipws(); | |
890 // Check for block starting delimiters | |
891 if ((_curchar != '%') || (*(_ptr+1) != '{')) { // If not open block | |
892 parse_err(SYNERR, "missing '%c{' in enc_class definition\n", '%'); | |
893 return; | |
894 } | |
895 next_char(); // Skip '%' | |
896 next_char(); // Skip '{' | |
897 | |
898 enc_class_parse_block(encoding, ec_name); | |
899 } | |
900 | |
901 | |
902 void ADLParser::enc_class_parse_block(EncClass* encoding, char* ec_name) { | |
903 skipws_no_preproc(); // Skip leading whitespace | |
904 // Prepend location descriptor, for debugging; cf. ADLParser::find_cpp_block | |
905 if (_AD._adlocation_debug) { | |
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906 encoding->add_code(get_line_string()); |
0 | 907 } |
908 | |
909 // Collect the parts of the encode description | |
910 // (1) strings that are passed through to output | |
911 // (2) replacement/substitution variable, preceeded by a '$' | |
912 while ( (_curchar != '%') && (*(_ptr+1) != '}') ) { | |
913 | |
914 // (1) | |
915 // Check if there is a string to pass through to output | |
916 char *start = _ptr; // Record start of the next string | |
917 while ((_curchar != '$') && ((_curchar != '%') || (*(_ptr+1) != '}')) ) { | |
918 // If at the start of a comment, skip past it | |
919 if( (_curchar == '/') && ((*(_ptr+1) == '/') || (*(_ptr+1) == '*')) ) { | |
920 skipws_no_preproc(); | |
921 } else { | |
922 // ELSE advance to the next character, or start of the next line | |
923 next_char_or_line(); | |
924 } | |
925 } | |
926 // If a string was found, terminate it and record in EncClass | |
927 if ( start != _ptr ) { | |
928 *_ptr = '\0'; // Terminate the string | |
929 encoding->add_code(start); | |
930 } | |
931 | |
932 // (2) | |
933 // If we are at a replacement variable, | |
934 // copy it and record in EncClass | |
2008 | 935 if (_curchar == '$') { |
0 | 936 // Found replacement Variable |
2008 | 937 char* rep_var = get_rep_var_ident_dup(); |
0 | 938 // Add flag to _strings list indicating we should check _rep_vars |
939 encoding->add_rep_var(rep_var); | |
940 } | |
941 } // end while part of format description | |
942 next_char(); // Skip '%' | |
943 next_char(); // Skip '}' | |
944 | |
945 skipws(); | |
946 | |
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947 if (_AD._adlocation_debug) { |
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948 encoding->add_code(end_line_marker()); |
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949 } |
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950 |
0 | 951 // Debug Stuff |
952 if (_AD._adl_debug > 1) fprintf(stderr,"EncodingClass Form: %s\n", ec_name); | |
953 } | |
954 | |
955 //------------------------------frame_parse----------------------------------- | |
956 void ADLParser::frame_parse(void) { | |
957 FrameForm *frame; // Information about stack-frame layout | |
958 char *desc = NULL; // String representation of frame | |
959 | |
960 skipws(); // Skip leading whitespace | |
961 | |
962 frame = new FrameForm(); // Build new Frame object | |
963 // Check for open block sequence | |
964 skipws(); // Skip leading whitespace | |
965 if (_curchar == '%' && *(_ptr+1) == '{') { | |
966 next_char(); next_char(); // Skip "%{" | |
967 skipws(); | |
968 while (_curchar != '%' && *(_ptr+1) != '}') { | |
969 char *token = get_ident(); | |
970 if (token == NULL) { | |
971 parse_err(SYNERR, "missing identifier inside frame block.\n"); | |
972 return; | |
973 } | |
974 if (strcmp(token,"stack_direction")==0) { | |
975 stack_dir_parse(frame); | |
976 } | |
977 if (strcmp(token,"sync_stack_slots")==0) { | |
978 sync_stack_slots_parse(frame); | |
979 } | |
980 if (strcmp(token,"frame_pointer")==0) { | |
981 frame_pointer_parse(frame, false); | |
982 } | |
983 if (strcmp(token,"interpreter_frame_pointer")==0) { | |
984 interpreter_frame_pointer_parse(frame, false); | |
985 } | |
986 if (strcmp(token,"inline_cache_reg")==0) { | |
987 inline_cache_parse(frame, false); | |
988 } | |
989 if (strcmp(token,"compiler_method_oop_reg")==0) { | |
990 parse_err(WARN, "Using obsolete Token, compiler_method_oop_reg"); | |
991 skipws(); | |
992 } | |
993 if (strcmp(token,"interpreter_method_oop_reg")==0) { | |
994 interpreter_method_oop_parse(frame, false); | |
995 } | |
996 if (strcmp(token,"cisc_spilling_operand_name")==0) { | |
997 cisc_spilling_operand_name_parse(frame, false); | |
998 } | |
999 if (strcmp(token,"stack_alignment")==0) { | |
1000 stack_alignment_parse(frame); | |
1001 } | |
1002 if (strcmp(token,"return_addr")==0) { | |
1003 return_addr_parse(frame, false); | |
1004 } | |
1005 if (strcmp(token,"in_preserve_stack_slots")==0) { | |
1006 preserve_stack_parse(frame); | |
1007 } | |
1008 if (strcmp(token,"out_preserve_stack_slots")==0) { | |
1009 parse_err(WARN, "Using obsolete token, out_preserve_stack_slots"); | |
1010 skipws(); | |
1011 } | |
1012 if (strcmp(token,"varargs_C_out_slots_killed")==0) { | |
1013 frame->_varargs_C_out_slots_killed = parse_one_arg("varargs C out slots killed"); | |
1014 } | |
1015 if (strcmp(token,"calling_convention")==0) { | |
1016 frame->_calling_convention = calling_convention_parse(); | |
1017 } | |
1018 if (strcmp(token,"return_value")==0) { | |
1019 frame->_return_value = return_value_parse(); | |
1020 } | |
1021 if (strcmp(token,"c_frame_pointer")==0) { | |
1022 frame_pointer_parse(frame, true); | |
1023 } | |
1024 if (strcmp(token,"c_return_addr")==0) { | |
1025 return_addr_parse(frame, true); | |
1026 } | |
1027 if (strcmp(token,"c_calling_convention")==0) { | |
1028 frame->_c_calling_convention = calling_convention_parse(); | |
1029 } | |
1030 if (strcmp(token,"c_return_value")==0) { | |
1031 frame->_c_return_value = return_value_parse(); | |
1032 } | |
1033 | |
1034 skipws(); | |
1035 } | |
1036 } | |
1037 else { | |
1038 parse_err(SYNERR, "Missing %c{ ... %c} block after encode keyword.\n",'%','%'); | |
1039 return; | |
1040 } | |
1041 // All Java versions are required, native versions are optional | |
1042 if(frame->_frame_pointer == NULL) { | |
1043 parse_err(SYNERR, "missing frame pointer definition in frame section.\n"); | |
1044 return; | |
1045 } | |
1046 // !!!!! !!!!! | |
1047 // if(frame->_interpreter_frame_ptr_reg == NULL) { | |
1048 // parse_err(SYNERR, "missing interpreter frame pointer definition in frame section.\n"); | |
1049 // return; | |
1050 // } | |
1051 if(frame->_alignment == NULL) { | |
1052 parse_err(SYNERR, "missing alignment definition in frame section.\n"); | |
1053 return; | |
1054 } | |
1055 if(frame->_return_addr == NULL) { | |
1056 parse_err(SYNERR, "missing return address location in frame section.\n"); | |
1057 return; | |
1058 } | |
1059 if(frame->_in_preserve_slots == NULL) { | |
1060 parse_err(SYNERR, "missing stack slot preservation definition in frame section.\n"); | |
1061 return; | |
1062 } | |
1063 if(frame->_varargs_C_out_slots_killed == NULL) { | |
1064 parse_err(SYNERR, "missing varargs C out slots killed definition in frame section.\n"); | |
1065 return; | |
1066 } | |
1067 if(frame->_calling_convention == NULL) { | |
1068 parse_err(SYNERR, "missing calling convention definition in frame section.\n"); | |
1069 return; | |
1070 } | |
1071 if(frame->_return_value == NULL) { | |
1072 parse_err(SYNERR, "missing return value definition in frame section.\n"); | |
1073 return; | |
1074 } | |
1075 // Fill natives in identically with the Java versions if not present. | |
1076 if(frame->_c_frame_pointer == NULL) { | |
1077 frame->_c_frame_pointer = frame->_frame_pointer; | |
1078 } | |
1079 if(frame->_c_return_addr == NULL) { | |
1080 frame->_c_return_addr = frame->_return_addr; | |
1081 frame->_c_return_addr_loc = frame->_return_addr_loc; | |
1082 } | |
1083 if(frame->_c_calling_convention == NULL) { | |
1084 frame->_c_calling_convention = frame->_calling_convention; | |
1085 } | |
1086 if(frame->_c_return_value == NULL) { | |
1087 frame->_c_return_value = frame->_return_value; | |
1088 } | |
1089 | |
1090 // Debug Stuff | |
1091 if (_AD._adl_debug > 1) fprintf(stderr,"Frame Form: %s\n", desc); | |
1092 | |
1093 // Create the EncodeForm for the architecture description. | |
1094 _AD.addForm(frame); | |
1095 // skipws(); | |
1096 } | |
1097 | |
1098 //------------------------------stack_dir_parse-------------------------------- | |
1099 void ADLParser::stack_dir_parse(FrameForm *frame) { | |
1100 char *direction = parse_one_arg("stack direction entry"); | |
1101 if (strcmp(direction, "TOWARDS_LOW") == 0) { | |
1102 frame->_direction = false; | |
1103 } | |
1104 else if (strcmp(direction, "TOWARDS_HIGH") == 0) { | |
1105 frame->_direction = true; | |
1106 } | |
1107 else { | |
1108 parse_err(SYNERR, "invalid value inside stack direction entry.\n"); | |
1109 return; | |
1110 } | |
1111 } | |
1112 | |
1113 //------------------------------sync_stack_slots_parse------------------------- | |
1114 void ADLParser::sync_stack_slots_parse(FrameForm *frame) { | |
1115 // Assign value into frame form | |
1116 frame->_sync_stack_slots = parse_one_arg("sync stack slots entry"); | |
1117 } | |
1118 | |
1119 //------------------------------frame_pointer_parse---------------------------- | |
1120 void ADLParser::frame_pointer_parse(FrameForm *frame, bool native) { | |
1121 char *frame_pointer = parse_one_arg("frame pointer entry"); | |
1122 // Assign value into frame form | |
1123 if (native) { frame->_c_frame_pointer = frame_pointer; } | |
1124 else { frame->_frame_pointer = frame_pointer; } | |
1125 } | |
1126 | |
1127 //------------------------------interpreter_frame_pointer_parse---------------------------- | |
1128 void ADLParser::interpreter_frame_pointer_parse(FrameForm *frame, bool native) { | |
1129 frame->_interpreter_frame_pointer_reg = parse_one_arg("interpreter frame pointer entry"); | |
1130 } | |
1131 | |
1132 //------------------------------inline_cache_parse----------------------------- | |
1133 void ADLParser::inline_cache_parse(FrameForm *frame, bool native) { | |
1134 frame->_inline_cache_reg = parse_one_arg("inline cache reg entry"); | |
1135 } | |
1136 | |
1137 //------------------------------interpreter_method_oop_parse------------------ | |
1138 void ADLParser::interpreter_method_oop_parse(FrameForm *frame, bool native) { | |
1139 frame->_interpreter_method_oop_reg = parse_one_arg("method oop reg entry"); | |
1140 } | |
1141 | |
1142 //------------------------------cisc_spilling_operand_parse--------------------- | |
1143 void ADLParser::cisc_spilling_operand_name_parse(FrameForm *frame, bool native) { | |
1144 frame->_cisc_spilling_operand_name = parse_one_arg("cisc spilling operand name"); | |
1145 } | |
1146 | |
1147 //------------------------------stack_alignment_parse-------------------------- | |
1148 void ADLParser::stack_alignment_parse(FrameForm *frame) { | |
1149 char *alignment = parse_one_arg("stack alignment entry"); | |
1150 // Assign value into frame | |
1151 frame->_alignment = alignment; | |
1152 } | |
1153 | |
1154 //------------------------------parse_one_arg------------------------------- | |
1155 char *ADLParser::parse_one_arg(const char *description) { | |
1156 char *token = NULL; | |
1157 if(_curchar == '(') { | |
1158 next_char(); | |
1159 skipws(); | |
1160 token = get_expr(description, ")"); | |
1161 if (token == NULL) { | |
1162 parse_err(SYNERR, "missing value inside %s.\n", description); | |
1163 return NULL; | |
1164 } | |
1165 next_char(); // skip the close paren | |
1166 if(_curchar != ';') { // check for semi-colon | |
1167 parse_err(SYNERR, "missing %c in.\n", ';', description); | |
1168 return NULL; | |
1169 } | |
1170 next_char(); // skip the semi-colon | |
1171 } | |
1172 else { | |
1173 parse_err(SYNERR, "Missing %c in.\n", '(', description); | |
1174 return NULL; | |
1175 } | |
1176 | |
1177 trim(token); | |
1178 return token; | |
1179 } | |
1180 | |
1181 //------------------------------return_addr_parse------------------------------ | |
1182 void ADLParser::return_addr_parse(FrameForm *frame, bool native) { | |
1183 bool in_register = true; | |
1184 if(_curchar == '(') { | |
1185 next_char(); | |
1186 skipws(); | |
1187 char *token = get_ident(); | |
1188 if (token == NULL) { | |
1189 parse_err(SYNERR, "missing value inside return address entry.\n"); | |
1190 return; | |
1191 } | |
1192 // check for valid values for stack/register | |
1193 if (strcmp(token, "REG") == 0) { | |
1194 in_register = true; | |
1195 } | |
1196 else if (strcmp(token, "STACK") == 0) { | |
1197 in_register = false; | |
1198 } | |
1199 else { | |
1200 parse_err(SYNERR, "invalid value inside return_address entry.\n"); | |
1201 return; | |
1202 } | |
1203 if (native) { frame->_c_return_addr_loc = in_register; } | |
1204 else { frame->_return_addr_loc = in_register; } | |
1205 | |
1206 // Parse expression that specifies register or stack position | |
1207 skipws(); | |
1208 char *token2 = get_expr("return address entry", ")"); | |
1209 if (token2 == NULL) { | |
1210 parse_err(SYNERR, "missing value inside return address entry.\n"); | |
1211 return; | |
1212 } | |
1213 next_char(); // skip the close paren | |
1214 if (native) { frame->_c_return_addr = token2; } | |
1215 else { frame->_return_addr = token2; } | |
1216 | |
1217 if(_curchar != ';') { // check for semi-colon | |
1218 parse_err(SYNERR, "missing %c in return address entry.\n", ';'); | |
1219 return; | |
1220 } | |
1221 next_char(); // skip the semi-colon | |
1222 } | |
1223 else { | |
1224 parse_err(SYNERR, "Missing %c in return_address entry.\n", '('); | |
1225 } | |
1226 } | |
1227 | |
1228 //------------------------------preserve_stack_parse--------------------------- | |
1229 void ADLParser::preserve_stack_parse(FrameForm *frame) { | |
1230 if(_curchar == '(') { | |
1231 char *token = get_paren_expr("preserve_stack_slots"); | |
1232 frame->_in_preserve_slots = token; | |
1233 | |
1234 if(_curchar != ';') { // check for semi-colon | |
1235 parse_err(SYNERR, "missing %c in preserve stack slot entry.\n", ';'); | |
1236 return; | |
1237 } | |
1238 next_char(); // skip the semi-colon | |
1239 } | |
1240 else { | |
1241 parse_err(SYNERR, "Missing %c in preserve stack slot entry.\n", '('); | |
1242 } | |
1243 } | |
1244 | |
1245 //------------------------------calling_convention_parse----------------------- | |
1246 char *ADLParser::calling_convention_parse() { | |
1247 char *desc = NULL; // String representation of calling_convention | |
1248 | |
1249 skipws(); // Skip leading whitespace | |
1250 if ( (desc = find_cpp_block("calling convention block")) == NULL ) { | |
1251 parse_err(SYNERR, "incorrect or missing block for 'calling_convention'.\n"); | |
1252 } | |
1253 return desc; | |
1254 } | |
1255 | |
1256 //------------------------------return_value_parse----------------------------- | |
1257 char *ADLParser::return_value_parse() { | |
1258 char *desc = NULL; // String representation of calling_convention | |
1259 | |
1260 skipws(); // Skip leading whitespace | |
1261 if ( (desc = find_cpp_block("return value block")) == NULL ) { | |
1262 parse_err(SYNERR, "incorrect or missing block for 'return_value'.\n"); | |
1263 } | |
1264 return desc; | |
1265 } | |
1266 | |
1267 //------------------------------ins_pipe_parse--------------------------------- | |
1268 void ADLParser::ins_pipe_parse(InstructForm &instr) { | |
1269 char * ident; | |
1270 | |
1271 skipws(); | |
1272 if ( _curchar != '(' ) { // Check for delimiter | |
1273 parse_err(SYNERR, "missing \"(\" in ins_pipe definition\n"); | |
1274 return; | |
1275 } | |
1276 | |
1277 next_char(); | |
1278 ident = get_ident(); // Grab next identifier | |
1279 | |
1280 if (ident == NULL) { | |
1281 parse_err(SYNERR, "keyword identifier expected at %c\n", _curchar); | |
1282 return; | |
1283 } | |
1284 | |
1285 skipws(); | |
1286 if ( _curchar != ')' ) { // Check for delimiter | |
1287 parse_err(SYNERR, "missing \")\" in ins_pipe definition\n"); | |
1288 return; | |
1289 } | |
1290 | |
1291 next_char(); // skip the close paren | |
1292 if(_curchar != ';') { // check for semi-colon | |
1293 parse_err(SYNERR, "missing %c in return value entry.\n", ';'); | |
1294 return; | |
1295 } | |
1296 next_char(); // skip the semi-colon | |
1297 | |
1298 // Check ident for validity | |
1299 if (_AD._pipeline && !_AD._pipeline->_classlist.search(ident)) { | |
1300 parse_err(SYNERR, "\"%s\" is not a valid pipeline class\n", ident); | |
1301 return; | |
1302 } | |
1303 | |
1304 // Add this instruction to the list in the pipeline class | |
1305 _AD._pipeline->_classdict[ident]->is_pipeclass()->_instructs.addName(instr._ident); | |
1306 | |
1307 // Set the name of the pipeline class in the instruction | |
1308 instr._ins_pipe = ident; | |
1309 return; | |
1310 } | |
1311 | |
1312 //------------------------------pipe_parse------------------------------------- | |
1313 void ADLParser::pipe_parse(void) { | |
1314 PipelineForm *pipeline; // Encode class for instruction/operand | |
1315 char * ident; | |
1316 | |
1317 pipeline = new PipelineForm(); // Build new Source object | |
1318 _AD.addForm(pipeline); | |
1319 | |
1320 skipws(); // Skip leading whitespace | |
1321 // Check for block delimiter | |
1322 if ( (_curchar != '%') | |
1323 || ( next_char(), (_curchar != '{')) ) { | |
1324 parse_err(SYNERR, "missing '%{' in pipeline definition\n"); | |
1325 return; | |
1326 } | |
1327 next_char(); // Maintain the invariant | |
1328 do { | |
1329 ident = get_ident(); // Grab next identifier | |
1330 if (ident == NULL) { | |
1331 parse_err(SYNERR, "keyword identifier expected at %c\n", _curchar); | |
1332 continue; | |
1333 } | |
1334 if (!strcmp(ident, "resources" )) resource_parse(*pipeline); | |
1335 else if (!strcmp(ident, "pipe_desc" )) pipe_desc_parse(*pipeline); | |
1336 else if (!strcmp(ident, "pipe_class")) pipe_class_parse(*pipeline); | |
1337 else if (!strcmp(ident, "define")) { | |
1338 skipws(); | |
1339 if ( (_curchar != '%') | |
1340 || ( next_char(), (_curchar != '{')) ) { | |
1341 parse_err(SYNERR, "expected '%{'\n"); | |
1342 return; | |
1343 } | |
1344 next_char(); skipws(); | |
1345 | |
1346 char *node_class = get_ident(); | |
1347 if (node_class == NULL) { | |
1348 parse_err(SYNERR, "expected identifier, found \"%c\"\n", _curchar); | |
1349 return; | |
1350 } | |
1351 | |
1352 skipws(); | |
1353 if (_curchar != ',' && _curchar != '=') { | |
1354 parse_err(SYNERR, "expected `=`, found '%c'\n", _curchar); | |
1355 break; | |
1356 } | |
1357 next_char(); skipws(); | |
1358 | |
1359 char *pipe_class = get_ident(); | |
1360 if (pipe_class == NULL) { | |
1361 parse_err(SYNERR, "expected identifier, found \"%c\"\n", _curchar); | |
1362 return; | |
1363 } | |
1364 if (_curchar != ';' ) { | |
1365 parse_err(SYNERR, "expected `;`, found '%c'\n", _curchar); | |
1366 break; | |
1367 } | |
1368 next_char(); // Skip over semi-colon | |
1369 | |
1370 skipws(); | |
1371 if ( (_curchar != '%') | |
1372 || ( next_char(), (_curchar != '}')) ) { | |
1373 parse_err(SYNERR, "expected '%%}', found \"%c\"\n", _curchar); | |
1374 } | |
1375 next_char(); | |
1376 | |
1377 // Check ident for validity | |
1378 if (_AD._pipeline && !_AD._pipeline->_classlist.search(pipe_class)) { | |
1379 parse_err(SYNERR, "\"%s\" is not a valid pipeline class\n", pipe_class); | |
1380 return; | |
1381 } | |
1382 | |
1383 // Add this machine node to the list in the pipeline class | |
1384 _AD._pipeline->_classdict[pipe_class]->is_pipeclass()->_instructs.addName(node_class); | |
1385 | |
1386 MachNodeForm *machnode = new MachNodeForm(node_class); // Create new machnode form | |
1387 machnode->_machnode_pipe = pipe_class; | |
1388 | |
1389 _AD.addForm(machnode); | |
1390 } | |
1391 else if (!strcmp(ident, "attributes")) { | |
1392 bool vsi_seen = false, bhds_seen = false; | |
1393 | |
1394 skipws(); | |
1395 if ( (_curchar != '%') | |
1396 || ( next_char(), (_curchar != '{')) ) { | |
1397 parse_err(SYNERR, "expected '%{'\n"); | |
1398 return; | |
1399 } | |
1400 next_char(); skipws(); | |
1401 | |
1402 while (_curchar != '%') { | |
1403 ident = get_ident(); | |
1404 if (ident == NULL) | |
1405 break; | |
1406 | |
1407 if (!strcmp(ident, "variable_size_instructions")) { | |
1408 skipws(); | |
1409 if (_curchar == ';') { | |
1410 next_char(); skipws(); | |
1411 } | |
1412 | |
1413 pipeline->_variableSizeInstrs = true; | |
1414 vsi_seen = true; | |
1415 continue; | |
1416 } | |
1417 | |
1418 if (!strcmp(ident, "fixed_size_instructions")) { | |
1419 skipws(); | |
1420 if (_curchar == ';') { | |
1421 next_char(); skipws(); | |
1422 } | |
1423 | |
1424 pipeline->_variableSizeInstrs = false; | |
1425 vsi_seen = true; | |
1426 continue; | |
1427 } | |
1428 | |
1429 if (!strcmp(ident, "branch_has_delay_slot")) { | |
1430 skipws(); | |
1431 if (_curchar == ';') { | |
1432 next_char(); skipws(); | |
1433 } | |
1434 | |
1435 pipeline->_branchHasDelaySlot = true; | |
1436 bhds_seen = true; | |
1437 continue; | |
1438 } | |
1439 | |
1440 if (!strcmp(ident, "max_instructions_per_bundle")) { | |
1441 skipws(); | |
1442 if (_curchar != '=') { | |
1443 parse_err(SYNERR, "expected `=`\n"); | |
1444 break; | |
1445 } | |
1446 | |
1447 next_char(); skipws(); | |
1448 pipeline->_maxInstrsPerBundle = get_int(); | |
1449 skipws(); | |
1450 | |
1451 if (_curchar == ';') { | |
1452 next_char(); skipws(); | |
1453 } | |
1454 | |
1455 continue; | |
1456 } | |
1457 | |
1458 if (!strcmp(ident, "max_bundles_per_cycle")) { | |
1459 skipws(); | |
1460 if (_curchar != '=') { | |
1461 parse_err(SYNERR, "expected `=`\n"); | |
1462 break; | |
1463 } | |
1464 | |
1465 next_char(); skipws(); | |
1466 pipeline->_maxBundlesPerCycle = get_int(); | |
1467 skipws(); | |
1468 | |
1469 if (_curchar == ';') { | |
1470 next_char(); skipws(); | |
1471 } | |
1472 | |
1473 continue; | |
1474 } | |
1475 | |
1476 if (!strcmp(ident, "instruction_unit_size")) { | |
1477 skipws(); | |
1478 if (_curchar != '=') { | |
1479 parse_err(SYNERR, "expected `=`, found '%c'\n", _curchar); | |
1480 break; | |
1481 } | |
1482 | |
1483 next_char(); skipws(); | |
1484 pipeline->_instrUnitSize = get_int(); | |
1485 skipws(); | |
1486 | |
1487 if (_curchar == ';') { | |
1488 next_char(); skipws(); | |
1489 } | |
1490 | |
1491 continue; | |
1492 } | |
1493 | |
1494 if (!strcmp(ident, "bundle_unit_size")) { | |
1495 skipws(); | |
1496 if (_curchar != '=') { | |
1497 parse_err(SYNERR, "expected `=`, found '%c'\n", _curchar); | |
1498 break; | |
1499 } | |
1500 | |
1501 next_char(); skipws(); | |
1502 pipeline->_bundleUnitSize = get_int(); | |
1503 skipws(); | |
1504 | |
1505 if (_curchar == ';') { | |
1506 next_char(); skipws(); | |
1507 } | |
1508 | |
1509 continue; | |
1510 } | |
1511 | |
1512 if (!strcmp(ident, "instruction_fetch_unit_size")) { | |
1513 skipws(); | |
1514 if (_curchar != '=') { | |
1515 parse_err(SYNERR, "expected `=`, found '%c'\n", _curchar); | |
1516 break; | |
1517 } | |
1518 | |
1519 next_char(); skipws(); | |
1520 pipeline->_instrFetchUnitSize = get_int(); | |
1521 skipws(); | |
1522 | |
1523 if (_curchar == ';') { | |
1524 next_char(); skipws(); | |
1525 } | |
1526 | |
1527 continue; | |
1528 } | |
1529 | |
1530 if (!strcmp(ident, "instruction_fetch_units")) { | |
1531 skipws(); | |
1532 if (_curchar != '=') { | |
1533 parse_err(SYNERR, "expected `=`, found '%c'\n", _curchar); | |
1534 break; | |
1535 } | |
1536 | |
1537 next_char(); skipws(); | |
1538 pipeline->_instrFetchUnits = get_int(); | |
1539 skipws(); | |
1540 | |
1541 if (_curchar == ';') { | |
1542 next_char(); skipws(); | |
1543 } | |
1544 | |
1545 continue; | |
1546 } | |
1547 | |
1548 if (!strcmp(ident, "nops")) { | |
1549 skipws(); | |
1550 if (_curchar != '(') { | |
1551 parse_err(SYNERR, "expected `(`, found '%c'\n", _curchar); | |
1552 break; | |
1553 } | |
1554 | |
1555 next_char(); skipws(); | |
1556 | |
1557 while (_curchar != ')') { | |
1558 ident = get_ident(); | |
1559 if (ident == NULL) { | |
1560 parse_err(SYNERR, "expected identifier for nop instruction, found '%c'\n", _curchar); | |
1561 break; | |
1562 } | |
1563 | |
1564 pipeline->_noplist.addName(ident); | |
1565 pipeline->_nopcnt++; | |
1566 skipws(); | |
1567 | |
1568 if (_curchar == ',') { | |
1569 next_char(); skipws(); | |
1570 } | |
1571 } | |
1572 | |
1573 next_char(); skipws(); | |
1574 | |
1575 if (_curchar == ';') { | |
1576 next_char(); skipws(); | |
1577 } | |
1578 | |
1579 continue; | |
1580 } | |
1581 | |
1582 parse_err(SYNERR, "unknown specifier \"%s\"\n", ident); | |
1583 } | |
1584 | |
1585 if ( (_curchar != '%') | |
1586 || ( next_char(), (_curchar != '}')) ) { | |
1587 parse_err(SYNERR, "expected '%}', found \"%c\"\n", _curchar); | |
1588 } | |
1589 next_char(); skipws(); | |
1590 | |
1591 if (pipeline->_maxInstrsPerBundle == 0) | |
1592 parse_err(SYNERR, "\"max_instructions_per_bundle\" unspecified\n"); | |
1593 if (pipeline->_instrUnitSize == 0 && pipeline->_bundleUnitSize == 0) | |
1594 parse_err(SYNERR, "\"instruction_unit_size\" and \"bundle_unit_size\" unspecified\n"); | |
1595 if (pipeline->_instrFetchUnitSize == 0) | |
1596 parse_err(SYNERR, "\"instruction_fetch_unit_size\" unspecified\n"); | |
1597 if (pipeline->_instrFetchUnits == 0) | |
1598 parse_err(SYNERR, "\"instruction_fetch_units\" unspecified\n"); | |
1599 if (!vsi_seen) | |
1600 parse_err(SYNERR, "\"variable_size_instruction\" or \"fixed_size_instruction\" unspecified\n"); | |
1601 } | |
1602 else { // Done with staticly defined parts of instruction definition | |
1603 parse_err(SYNERR, "expected one of \"resources\", \"pipe_desc\", \"pipe_class\", found \"%s\"\n", ident); | |
1604 return; | |
1605 } | |
1606 skipws(); | |
1607 if (_curchar == ';') | |
1608 skipws(); | |
1609 } while(_curchar != '%'); | |
1610 | |
1611 next_char(); | |
1612 if (_curchar != '}') { | |
1613 parse_err(SYNERR, "missing \"%}\" in pipeline definition\n"); | |
1614 return; | |
1615 } | |
1616 | |
1617 next_char(); | |
1618 } | |
1619 | |
1620 //------------------------------resource_parse---------------------------- | |
1621 void ADLParser::resource_parse(PipelineForm &pipeline) { | |
1622 ResourceForm *resource; | |
1623 char * ident; | |
1624 char * expr; | |
1625 unsigned mask; | |
1626 pipeline._rescount = 0; | |
1627 | |
1628 skipws(); // Skip leading whitespace | |
1629 | |
1630 if (_curchar != '(') { | |
1631 parse_err(SYNERR, "missing \"(\" in resource definition\n"); | |
1632 return; | |
1633 } | |
1634 | |
1635 do { | |
1636 next_char(); // Skip "(" or "," | |
1637 ident = get_ident(); // Grab next identifier | |
1638 | |
1639 if (ident == NULL) { | |
1640 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
1641 return; | |
1642 } | |
1643 skipws(); | |
1644 | |
1645 if (_curchar != '=') { | |
1646 mask = (1 << pipeline._rescount++); | |
1647 } | |
1648 else { | |
1649 next_char(); skipws(); | |
1650 expr = get_ident(); // Grab next identifier | |
1651 if (expr == NULL) { | |
1652 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
1653 return; | |
1654 } | |
1655 resource = (ResourceForm *) pipeline._resdict[expr]; | |
1656 if (resource == NULL) { | |
1657 parse_err(SYNERR, "resource \"%s\" is not defined\n", expr); | |
1658 return; | |
1659 } | |
1660 mask = resource->mask(); | |
1661 | |
1662 skipws(); | |
1663 while (_curchar == '|') { | |
1664 next_char(); skipws(); | |
1665 | |
1666 expr = get_ident(); // Grab next identifier | |
1667 if (expr == NULL) { | |
1668 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
1669 return; | |
1670 } | |
1671 | |
1672 resource = (ResourceForm *) pipeline._resdict[expr]; // Look up the value | |
1673 if (resource == NULL) { | |
1674 parse_err(SYNERR, "resource \"%s\" is not defined\n", expr); | |
1675 return; | |
1676 } | |
1677 | |
1678 mask |= resource->mask(); | |
1679 skipws(); | |
1680 } | |
1681 } | |
1682 | |
1683 resource = new ResourceForm(mask); | |
1684 | |
1685 pipeline._resdict.Insert(ident, resource); | |
1686 pipeline._reslist.addName(ident); | |
1687 } while (_curchar == ','); | |
1688 | |
1689 if (_curchar != ')') { | |
1690 parse_err(SYNERR, "\")\" expected at \"%c\"\n", _curchar); | |
1691 return; | |
1692 } | |
1693 | |
1694 next_char(); // Skip ")" | |
1695 if (_curchar == ';') | |
1696 next_char(); // Skip ";" | |
1697 } | |
1698 | |
1699 //------------------------------resource_parse---------------------------- | |
1700 void ADLParser::pipe_desc_parse(PipelineForm &pipeline) { | |
1701 char * ident; | |
1702 | |
1703 skipws(); // Skip leading whitespace | |
1704 | |
1705 if (_curchar != '(') { | |
1706 parse_err(SYNERR, "missing \"(\" in pipe_desc definition\n"); | |
1707 return; | |
1708 } | |
1709 | |
1710 do { | |
1711 next_char(); // Skip "(" or "," | |
1712 ident = get_ident(); // Grab next identifier | |
1713 if (ident == NULL) { | |
1714 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
1715 return; | |
1716 } | |
1717 | |
1718 // Add the name to the list | |
1719 pipeline._stages.addName(ident); | |
1720 pipeline._stagecnt++; | |
1721 | |
1722 skipws(); | |
1723 } while (_curchar == ','); | |
1724 | |
1725 if (_curchar != ')') { | |
1726 parse_err(SYNERR, "\")\" expected at \"%c\"\n", _curchar); | |
1727 return; | |
1728 } | |
1729 | |
1730 next_char(); // Skip ")" | |
1731 if (_curchar == ';') | |
1732 next_char(); // Skip ";" | |
1733 } | |
1734 | |
1735 //------------------------------pipe_class_parse-------------------------- | |
1736 void ADLParser::pipe_class_parse(PipelineForm &pipeline) { | |
1737 PipeClassForm *pipe_class; | |
1738 char * ident; | |
1739 char * stage; | |
1740 char * read_or_write; | |
1741 int is_write; | |
1742 int is_read; | |
1743 OperandForm *oper; | |
1744 | |
1745 skipws(); // Skip leading whitespace | |
1746 | |
1747 ident = get_ident(); // Grab next identifier | |
1748 | |
1749 if (ident == NULL) { | |
1750 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
1751 return; | |
1752 } | |
1753 | |
1754 // Create a record for the pipe_class | |
1755 pipe_class = new PipeClassForm(ident, ++pipeline._classcnt); | |
1756 pipeline._classdict.Insert(ident, pipe_class); | |
1757 pipeline._classlist.addName(ident); | |
1758 | |
1759 // Then get the operands | |
1760 skipws(); | |
1761 if (_curchar != '(') { | |
1762 parse_err(SYNERR, "missing \"(\" in pipe_class definition\n"); | |
1763 } | |
1764 // Parse the operand list | |
1765 else get_oplist(pipe_class->_parameters, pipe_class->_localNames); | |
1766 skipws(); // Skip leading whitespace | |
1767 // Check for block delimiter | |
1768 if ( (_curchar != '%') | |
1769 || ( next_char(), (_curchar != '{')) ) { | |
1770 parse_err(SYNERR, "missing \"%{\" in pipe_class definition\n"); | |
1771 return; | |
1772 } | |
1773 next_char(); | |
1774 | |
1775 do { | |
1776 ident = get_ident(); // Grab next identifier | |
1777 if (ident == NULL) { | |
1778 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
1779 continue; | |
1780 } | |
1781 skipws(); | |
1782 | |
1783 if (!strcmp(ident, "fixed_latency")) { | |
1784 skipws(); | |
1785 if (_curchar != '(') { | |
1786 parse_err(SYNERR, "missing \"(\" in latency definition\n"); | |
1787 return; | |
1788 } | |
1789 next_char(); skipws(); | |
1790 if( !isdigit(_curchar) ) { | |
1791 parse_err(SYNERR, "number expected for \"%c\" in latency definition\n", _curchar); | |
1792 return; | |
1793 } | |
1794 int fixed_latency = get_int(); | |
1795 skipws(); | |
1796 if (_curchar != ')') { | |
1797 parse_err(SYNERR, "missing \")\" in latency definition\n"); | |
1798 return; | |
1799 } | |
1800 next_char(); skipws(); | |
1801 if (_curchar != ';') { | |
1802 parse_err(SYNERR, "missing \";\" in latency definition\n"); | |
1803 return; | |
1804 } | |
1805 | |
1806 pipe_class->setFixedLatency(fixed_latency); | |
1807 next_char(); skipws(); | |
1808 continue; | |
1809 } | |
1810 | |
1811 if (!strcmp(ident, "zero_instructions") || | |
1812 !strcmp(ident, "no_instructions")) { | |
1813 skipws(); | |
1814 if (_curchar != ';') { | |
1815 parse_err(SYNERR, "missing \";\" in latency definition\n"); | |
1816 return; | |
1817 } | |
1818 | |
1819 pipe_class->setInstructionCount(0); | |
1820 next_char(); skipws(); | |
1821 continue; | |
1822 } | |
1823 | |
1824 if (!strcmp(ident, "one_instruction_with_delay_slot") || | |
1825 !strcmp(ident, "single_instruction_with_delay_slot")) { | |
1826 skipws(); | |
1827 if (_curchar != ';') { | |
1828 parse_err(SYNERR, "missing \";\" in latency definition\n"); | |
1829 return; | |
1830 } | |
1831 | |
1832 pipe_class->setInstructionCount(1); | |
1833 pipe_class->setBranchDelay(true); | |
1834 next_char(); skipws(); | |
1835 continue; | |
1836 } | |
1837 | |
1838 if (!strcmp(ident, "one_instruction") || | |
1839 !strcmp(ident, "single_instruction")) { | |
1840 skipws(); | |
1841 if (_curchar != ';') { | |
1842 parse_err(SYNERR, "missing \";\" in latency definition\n"); | |
1843 return; | |
1844 } | |
1845 | |
1846 pipe_class->setInstructionCount(1); | |
1847 next_char(); skipws(); | |
1848 continue; | |
1849 } | |
1850 | |
1851 if (!strcmp(ident, "instructions_in_first_bundle") || | |
1852 !strcmp(ident, "instruction_count")) { | |
1853 skipws(); | |
1854 | |
1855 int number_of_instructions = 1; | |
1856 | |
1857 if (_curchar != '(') { | |
1858 parse_err(SYNERR, "\"(\" expected at \"%c\"\n", _curchar); | |
1859 continue; | |
1860 } | |
1861 | |
1862 next_char(); skipws(); | |
1863 number_of_instructions = get_int(); | |
1864 | |
1865 skipws(); | |
1866 if (_curchar != ')') { | |
1867 parse_err(SYNERR, "\")\" expected at \"%c\"\n", _curchar); | |
1868 continue; | |
1869 } | |
1870 | |
1871 next_char(); skipws(); | |
1872 if (_curchar != ';') { | |
1873 parse_err(SYNERR, "missing \";\" in latency definition\n"); | |
1874 return; | |
1875 } | |
1876 | |
1877 pipe_class->setInstructionCount(number_of_instructions); | |
1878 next_char(); skipws(); | |
1879 continue; | |
1880 } | |
1881 | |
1882 if (!strcmp(ident, "multiple_bundles")) { | |
1883 skipws(); | |
1884 if (_curchar != ';') { | |
1885 parse_err(SYNERR, "missing \";\" after multiple bundles\n"); | |
1886 return; | |
1887 } | |
1888 | |
1889 pipe_class->setMultipleBundles(true); | |
1890 next_char(); skipws(); | |
1891 continue; | |
1892 } | |
1893 | |
1894 if (!strcmp(ident, "has_delay_slot")) { | |
1895 skipws(); | |
1896 if (_curchar != ';') { | |
1897 parse_err(SYNERR, "missing \";\" after \"has_delay_slot\"\n"); | |
1898 return; | |
1899 } | |
1900 | |
1901 pipe_class->setBranchDelay(true); | |
1902 next_char(); skipws(); | |
1903 continue; | |
1904 } | |
1905 | |
1906 if (!strcmp(ident, "force_serialization")) { | |
1907 skipws(); | |
1908 if (_curchar != ';') { | |
1909 parse_err(SYNERR, "missing \";\" after \"force_serialization\"\n"); | |
1910 return; | |
1911 } | |
1912 | |
1913 pipe_class->setForceSerialization(true); | |
1914 next_char(); skipws(); | |
1915 continue; | |
1916 } | |
1917 | |
1918 if (!strcmp(ident, "may_have_no_code")) { | |
1919 skipws(); | |
1920 if (_curchar != ';') { | |
1921 parse_err(SYNERR, "missing \";\" after \"may_have_no_code\"\n"); | |
1922 return; | |
1923 } | |
1924 | |
1925 pipe_class->setMayHaveNoCode(true); | |
1926 next_char(); skipws(); | |
1927 continue; | |
1928 } | |
1929 | |
1930 const Form *parm = pipe_class->_localNames[ident]; | |
1931 if (parm != NULL) { | |
1932 oper = parm->is_operand(); | |
1933 if (oper == NULL && !parm->is_opclass()) { | |
1934 parse_err(SYNERR, "operand name expected at %s\n", ident); | |
1935 continue; | |
1936 } | |
1937 | |
1938 if (_curchar != ':') { | |
1939 parse_err(SYNERR, "\":\" expected at \"%c\"\n", _curchar); | |
1940 continue; | |
1941 } | |
1942 next_char(); skipws(); | |
1943 stage = get_ident(); | |
1944 if (stage == NULL) { | |
1945 parse_err(SYNERR, "pipeline stage identifier expected at \"%c\"\n", _curchar); | |
1946 continue; | |
1947 } | |
1948 | |
1949 skipws(); | |
1950 if (_curchar != '(') { | |
1951 parse_err(SYNERR, "\"(\" expected at \"%c\"\n", _curchar); | |
1952 continue; | |
1953 } | |
1954 | |
1955 next_char(); | |
1956 read_or_write = get_ident(); | |
1957 if (read_or_write == NULL) { | |
1958 parse_err(SYNERR, "\"read\" or \"write\" expected at \"%c\"\n", _curchar); | |
1959 continue; | |
1960 } | |
1961 | |
1962 is_read = strcmp(read_or_write, "read") == 0; | |
1963 is_write = strcmp(read_or_write, "write") == 0; | |
1964 if (!is_read && !is_write) { | |
1965 parse_err(SYNERR, "\"read\" or \"write\" expected at \"%c\"\n", _curchar); | |
1966 continue; | |
1967 } | |
1968 | |
1969 skipws(); | |
1970 if (_curchar != ')') { | |
1971 parse_err(SYNERR, "\")\" expected at \"%c\"\n", _curchar); | |
1972 continue; | |
1973 } | |
1974 | |
1975 next_char(); skipws(); | |
1976 int more_instrs = 0; | |
1977 if (_curchar == '+') { | |
1978 next_char(); skipws(); | |
1979 if (_curchar < '0' || _curchar > '9') { | |
1980 parse_err(SYNERR, "<number> expected at \"%c\"\n", _curchar); | |
1981 continue; | |
1982 } | |
1983 while (_curchar >= '0' && _curchar <= '9') { | |
1984 more_instrs *= 10; | |
1985 more_instrs += _curchar - '0'; | |
1986 next_char(); | |
1987 } | |
1988 skipws(); | |
1989 } | |
1990 | |
1991 PipeClassOperandForm *pipe_operand = new PipeClassOperandForm(stage, is_write, more_instrs); | |
1992 pipe_class->_localUsage.Insert(ident, pipe_operand); | |
1993 | |
1994 if (_curchar == '%') | |
1995 continue; | |
1996 | |
1997 if (_curchar != ';') { | |
1998 parse_err(SYNERR, "\";\" expected at \"%c\"\n", _curchar); | |
1999 continue; | |
2000 } | |
2001 next_char(); skipws(); | |
2002 continue; | |
2003 } | |
2004 | |
2005 // Scan for Resource Specifier | |
2006 const Form *res = pipeline._resdict[ident]; | |
2007 if (res != NULL) { | |
2008 int cyclecnt = 1; | |
2009 if (_curchar != ':') { | |
2010 parse_err(SYNERR, "\":\" expected at \"%c\"\n", _curchar); | |
2011 continue; | |
2012 } | |
2013 next_char(); skipws(); | |
2014 stage = get_ident(); | |
2015 if (stage == NULL) { | |
2016 parse_err(SYNERR, "pipeline stage identifier expected at \"%c\"\n", _curchar); | |
2017 continue; | |
2018 } | |
2019 | |
2020 skipws(); | |
2021 if (_curchar == '(') { | |
2022 next_char(); | |
2023 cyclecnt = get_int(); | |
2024 | |
2025 skipws(); | |
2026 if (_curchar != ')') { | |
2027 parse_err(SYNERR, "\")\" expected at \"%c\"\n", _curchar); | |
2028 continue; | |
2029 } | |
2030 | |
2031 next_char(); skipws(); | |
2032 } | |
2033 | |
2034 PipeClassResourceForm *resource = new PipeClassResourceForm(ident, stage, cyclecnt); | |
2035 int stagenum = pipeline._stages.index(stage); | |
2036 if (pipeline._maxcycleused < (stagenum+cyclecnt)) | |
2037 pipeline._maxcycleused = (stagenum+cyclecnt); | |
2038 pipe_class->_resUsage.addForm(resource); | |
2039 | |
2040 if (_curchar == '%') | |
2041 continue; | |
2042 | |
2043 if (_curchar != ';') { | |
2044 parse_err(SYNERR, "\";\" expected at \"%c\"\n", _curchar); | |
2045 continue; | |
2046 } | |
2047 next_char(); skipws(); | |
2048 continue; | |
2049 } | |
2050 | |
2051 parse_err(SYNERR, "resource expected at \"%s\"\n", ident); | |
2052 return; | |
2053 } while(_curchar != '%'); | |
2054 | |
2055 next_char(); | |
2056 if (_curchar != '}') { | |
2057 parse_err(SYNERR, "missing \"%}\" in pipe_class definition\n"); | |
2058 return; | |
2059 } | |
2060 | |
2061 next_char(); | |
2062 } | |
2063 | |
2064 //------------------------------peep_parse------------------------------------- | |
2065 void ADLParser::peep_parse(void) { | |
2066 Peephole *peep; // Pointer to current peephole rule form | |
2067 char *desc = NULL; // String representation of rule | |
2068 | |
2069 skipws(); // Skip leading whitespace | |
2070 | |
2071 peep = new Peephole(); // Build new Peephole object | |
2072 // Check for open block sequence | |
2073 skipws(); // Skip leading whitespace | |
2074 if (_curchar == '%' && *(_ptr+1) == '{') { | |
2075 next_char(); next_char(); // Skip "%{" | |
2076 skipws(); | |
2077 while (_curchar != '%' && *(_ptr+1) != '}') { | |
2078 char *token = get_ident(); | |
2079 if (token == NULL) { | |
2080 parse_err(SYNERR, "missing identifier inside peephole rule.\n"); | |
2081 return; | |
2082 } | |
2083 // check for legal subsections of peephole rule | |
2084 if (strcmp(token,"peepmatch")==0) { | |
2085 peep_match_parse(*peep); } | |
2086 else if (strcmp(token,"peepconstraint")==0) { | |
2087 peep_constraint_parse(*peep); } | |
2088 else if (strcmp(token,"peepreplace")==0) { | |
2089 peep_replace_parse(*peep); } | |
2090 else { | |
2091 parse_err(SYNERR, "expected peepmatch, peepconstraint, or peepreplace for identifier %s.\n", token); | |
2092 } | |
2093 skipws(); | |
2094 } | |
2095 } | |
2096 else { | |
2097 parse_err(SYNERR, "Missing %%{ ... %%} block after peephole keyword.\n"); | |
2098 return; | |
2099 } | |
2100 next_char(); // Skip past '%' | |
2101 next_char(); // Skip past '}' | |
2102 } | |
2103 | |
2104 // ******************** Private Level 2 Parse Functions ******************** | |
2105 //------------------------------constraint_parse------------------------------ | |
2106 Constraint *ADLParser::constraint_parse(void) { | |
2107 char *func; | |
2108 char *arg; | |
2109 | |
2110 // Check for constraint expression | |
2111 skipws(); | |
2112 if (_curchar != '(') { | |
2113 parse_err(SYNERR, "missing constraint expression, (...)\n"); | |
2114 return NULL; | |
2115 } | |
2116 next_char(); // Skip past '(' | |
2117 | |
2118 // Get constraint function | |
2119 skipws(); | |
2120 func = get_ident(); | |
2121 if (func == NULL) { | |
2122 parse_err(SYNERR, "missing function in constraint expression.\n"); | |
2123 return NULL; | |
2124 } | |
2125 if (strcmp(func,"ALLOC_IN_RC")==0 | |
2126 || strcmp(func,"IS_R_CLASS")==0) { | |
2127 // Check for '(' before argument | |
2128 skipws(); | |
2129 if (_curchar != '(') { | |
2130 parse_err(SYNERR, "missing '(' for constraint function's argument.\n"); | |
2131 return NULL; | |
2132 } | |
2133 next_char(); | |
2134 | |
2135 // Get it's argument | |
2136 skipws(); | |
2137 arg = get_ident(); | |
2138 if (arg == NULL) { | |
2139 parse_err(SYNERR, "missing argument for constraint function %s\n",func); | |
2140 return NULL; | |
2141 } | |
2142 // Check for ')' after argument | |
2143 skipws(); | |
2144 if (_curchar != ')') { | |
2145 parse_err(SYNERR, "missing ')' after constraint function argument %s\n",arg); | |
2146 return NULL; | |
2147 } | |
2148 next_char(); | |
2149 } else { | |
2150 parse_err(SYNERR, "Invalid constraint function %s\n",func); | |
2151 return NULL; | |
2152 } | |
2153 | |
2154 // Check for closing paren and ';' | |
2155 skipws(); | |
2156 if (_curchar != ')') { | |
2157 parse_err(SYNERR, "Missing ')' for constraint function %s\n",func); | |
2158 return NULL; | |
2159 } | |
2160 next_char(); | |
2161 skipws(); | |
2162 if (_curchar != ';') { | |
2163 parse_err(SYNERR, "Missing ';' after constraint.\n"); | |
2164 return NULL; | |
2165 } | |
2166 next_char(); | |
2167 | |
2168 // Create new "Constraint" | |
2169 Constraint *constraint = new Constraint(func,arg); | |
2170 return constraint; | |
2171 } | |
2172 | |
2173 //------------------------------constr_parse----------------------------------- | |
2174 ConstructRule *ADLParser::construct_parse(void) { | |
2175 return NULL; | |
2176 } | |
2177 | |
2178 | |
2179 //------------------------------reg_def_parse---------------------------------- | |
2180 void ADLParser::reg_def_parse(void) { | |
2181 char *rname; // Name of register being defined | |
2182 | |
2183 // Get register name | |
2184 skipws(); // Skip whitespace | |
2185 rname = get_ident(); | |
2186 if (rname == NULL) { | |
2187 parse_err(SYNERR, "missing register name after reg_def\n"); | |
2188 return; | |
2189 } | |
2190 | |
2191 // Check for definition of register calling convention (save on call, ...), | |
2192 // register save type, and register encoding value. | |
2193 skipws(); | |
2194 char *callconv = NULL; | |
2195 char *c_conv = NULL; | |
2196 char *idealtype = NULL; | |
2197 char *encoding = NULL; | |
2198 char *concrete = NULL; | |
2199 if (_curchar == '(') { | |
2200 next_char(); | |
2201 callconv = get_ident(); | |
2202 // Parse the internal calling convention, must be NS, SOC, SOE, or AS. | |
2203 if (callconv == NULL) { | |
2204 parse_err(SYNERR, "missing register calling convention value\n"); | |
2205 return; | |
2206 } | |
2207 if(strcmp(callconv, "SOC") && strcmp(callconv,"SOE") && | |
2208 strcmp(callconv, "NS") && strcmp(callconv, "AS")) { | |
2209 parse_err(SYNERR, "invalid value for register calling convention\n"); | |
2210 } | |
2211 skipws(); | |
2212 if (_curchar != ',') { | |
2213 parse_err(SYNERR, "missing comma in register definition statement\n"); | |
2214 return; | |
2215 } | |
2216 next_char(); | |
2217 | |
2218 // Parse the native calling convention, must be NS, SOC, SOE, AS | |
2219 c_conv = get_ident(); | |
2220 if (c_conv == NULL) { | |
2221 parse_err(SYNERR, "missing register native calling convention value\n"); | |
2222 return; | |
2223 } | |
2224 if(strcmp(c_conv, "SOC") && strcmp(c_conv,"SOE") && | |
2225 strcmp(c_conv, "NS") && strcmp(c_conv, "AS")) { | |
2226 parse_err(SYNERR, "invalid value for register calling convention\n"); | |
2227 } | |
2228 skipws(); | |
2229 if (_curchar != ',') { | |
2230 parse_err(SYNERR, "missing comma in register definition statement\n"); | |
2231 return; | |
2232 } | |
2233 next_char(); | |
2234 skipws(); | |
2235 | |
2236 // Parse the ideal save type | |
2237 idealtype = get_ident(); | |
2238 if (idealtype == NULL) { | |
2239 parse_err(SYNERR, "missing register save type value\n"); | |
2240 return; | |
2241 } | |
2242 skipws(); | |
2243 if (_curchar != ',') { | |
2244 parse_err(SYNERR, "missing comma in register definition statement\n"); | |
2245 return; | |
2246 } | |
2247 next_char(); | |
2248 skipws(); | |
2249 | |
2250 // Parse the encoding value | |
2251 encoding = get_expr("encoding", ","); | |
2252 if (encoding == NULL) { | |
2253 parse_err(SYNERR, "missing register encoding value\n"); | |
2254 return; | |
2255 } | |
2256 trim(encoding); | |
2257 if (_curchar != ',') { | |
2258 parse_err(SYNERR, "missing comma in register definition statement\n"); | |
2259 return; | |
2260 } | |
2261 next_char(); | |
2262 skipws(); | |
2263 // Parse the concrete name type | |
2264 // concrete = get_ident(); | |
2265 concrete = get_expr("concrete", ")"); | |
2266 if (concrete == NULL) { | |
2267 parse_err(SYNERR, "missing vm register name value\n"); | |
2268 return; | |
2269 } | |
2270 | |
2271 if (_curchar != ')') { | |
2272 parse_err(SYNERR, "missing ')' in register definition statement\n"); | |
2273 return; | |
2274 } | |
2275 next_char(); | |
2276 } | |
2277 | |
2278 // Check for closing ';' | |
2279 skipws(); | |
2280 if (_curchar != ';') { | |
2281 parse_err(SYNERR, "missing ';' after reg_def\n"); | |
2282 return; | |
2283 } | |
2284 next_char(); // move past ';' | |
2285 | |
2286 // Debug Stuff | |
2287 if (_AD._adl_debug > 1) { | |
2288 fprintf(stderr,"Register Definition: %s ( %s, %s %s )\n", rname, | |
2289 (callconv ? callconv : ""), (c_conv ? c_conv : ""), concrete); | |
2290 } | |
2291 | |
2292 // Record new register definition. | |
2293 _AD._register->addRegDef(rname, callconv, c_conv, idealtype, encoding, concrete); | |
2294 return; | |
2295 } | |
2296 | |
2297 //------------------------------reg_class_parse-------------------------------- | |
2298 void ADLParser::reg_class_parse(void) { | |
2299 char *cname; // Name of register class being defined | |
2300 | |
2301 // Get register class name | |
2302 skipws(); // Skip leading whitespace | |
2303 cname = get_ident(); | |
2304 if (cname == NULL) { | |
2305 parse_err(SYNERR, "missing register class name after 'reg_class'\n"); | |
2306 return; | |
2307 } | |
2308 // Debug Stuff | |
2309 if (_AD._adl_debug >1) fprintf(stderr,"Register Class: %s\n", cname); | |
2310 | |
2311 RegClass *reg_class = _AD._register->addRegClass(cname); | |
2312 | |
2313 // Collect registers in class | |
2314 skipws(); | |
2315 if (_curchar == '(') { | |
2316 next_char(); // Skip '(' | |
2317 skipws(); | |
2318 while (_curchar != ')') { | |
2319 char *rname = get_ident(); | |
2320 if (rname==NULL) { | |
2321 parse_err(SYNERR, "missing identifier inside reg_class list.\n"); | |
2322 return; | |
2323 } | |
2324 RegDef *regDef = _AD._register->getRegDef(rname); | |
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2325 if (!regDef) { |
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2326 parse_err(SEMERR, "unknown identifier %s inside reg_class list.\n", rname); |
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2327 } else { |
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2328 reg_class->addReg(regDef); // add regDef to regClass |
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2329 } |
0 | 2330 |
2331 // Check for ',' and position to next token. | |
2332 skipws(); | |
2333 if (_curchar == ',') { | |
2334 next_char(); // Skip trailing ',' | |
2335 skipws(); | |
2336 } | |
2337 } | |
2338 next_char(); // Skip closing ')' | |
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2339 } else if (_curchar == '%') { |
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2340 char *code = find_cpp_block("reg class"); |
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2341 if (code == NULL) { |
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2342 parse_err(SYNERR, "missing code declaration for reg class.\n"); |
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2343 return; |
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2344 } |
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2345 reg_class->_user_defined = code; |
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2346 return; |
0 | 2347 } |
2348 | |
2349 // Check for terminating ';' | |
2350 skipws(); | |
2351 if (_curchar != ';') { | |
2352 parse_err(SYNERR, "missing ';' at end of reg_class definition.\n"); | |
2353 return; | |
2354 } | |
2355 next_char(); // Skip trailing ';' | |
2356 | |
2357 // Check RegClass size, must be <= 32 registers in class. | |
2358 | |
2359 return; | |
2360 } | |
2361 | |
2362 //------------------------------alloc_class_parse------------------------------ | |
2363 void ADLParser::alloc_class_parse(void) { | |
2364 char *name; // Name of allocation class being defined | |
2365 | |
2366 // Get allocation class name | |
2367 skipws(); // Skip leading whitespace | |
2368 name = get_ident(); | |
2369 if (name == NULL) { | |
2370 parse_err(SYNERR, "missing allocation class name after 'reg_class'\n"); | |
2371 return; | |
2372 } | |
2373 // Debug Stuff | |
2374 if (_AD._adl_debug >1) fprintf(stderr,"Allocation Class: %s\n", name); | |
2375 | |
2376 AllocClass *alloc_class = _AD._register->addAllocClass(name); | |
2377 | |
2378 // Collect registers in class | |
2379 skipws(); | |
2380 if (_curchar == '(') { | |
2381 next_char(); // Skip '(' | |
2382 skipws(); | |
2383 while (_curchar != ')') { | |
2384 char *rname = get_ident(); | |
2385 if (rname==NULL) { | |
2386 parse_err(SYNERR, "missing identifier inside reg_class list.\n"); | |
2387 return; | |
2388 } | |
2389 // Check if name is a RegDef | |
2390 RegDef *regDef = _AD._register->getRegDef(rname); | |
2391 if (regDef) { | |
2392 alloc_class->addReg(regDef); // add regDef to allocClass | |
2393 } else { | |
2394 | |
2395 // name must be a RegDef or a RegClass | |
2396 parse_err(SYNERR, "name %s should be a previously defined reg_def.\n", rname); | |
2397 return; | |
2398 } | |
2399 | |
2400 // Check for ',' and position to next token. | |
2401 skipws(); | |
2402 if (_curchar == ',') { | |
2403 next_char(); // Skip trailing ',' | |
2404 skipws(); | |
2405 } | |
2406 } | |
2407 next_char(); // Skip closing ')' | |
2408 } | |
2409 | |
2410 // Check for terminating ';' | |
2411 skipws(); | |
2412 if (_curchar != ';') { | |
2413 parse_err(SYNERR, "missing ';' at end of reg_class definition.\n"); | |
2414 return; | |
2415 } | |
2416 next_char(); // Skip trailing ';' | |
2417 | |
2418 return; | |
2419 } | |
2420 | |
2421 //------------------------------peep_match_child_parse------------------------- | |
2422 InstructForm *ADLParser::peep_match_child_parse(PeepMatch &match, int parent, int &position, int input){ | |
2423 char *token = NULL; | |
2424 int lparen = 0; // keep track of parenthesis nesting depth | |
2425 int rparen = 0; // position of instruction at this depth | |
2426 InstructForm *inst_seen = NULL; | |
2427 InstructForm *child_seen = NULL; | |
2428 | |
2429 // Walk the match tree, | |
2430 // Record <parent, position, instruction name, input position> | |
2431 while ( lparen >= rparen ) { | |
2432 skipws(); | |
2433 // Left paren signals start of an input, collect with recursive call | |
2434 if (_curchar == '(') { | |
2435 ++lparen; | |
2436 next_char(); | |
2437 child_seen = peep_match_child_parse(match, parent, position, rparen); | |
2438 } | |
2439 // Right paren signals end of an input, may be more | |
2440 else if (_curchar == ')') { | |
2441 ++rparen; | |
2442 if( rparen == lparen ) { // IF rparen matches an lparen I've seen | |
2443 next_char(); // move past ')' | |
2444 } else { // ELSE leave ')' for parent | |
2445 assert( rparen == lparen + 1, "Should only see one extra ')'"); | |
2446 // if an instruction was not specified for this paren-pair | |
2447 if( ! inst_seen ) { // record signal entry | |
2448 match.add_instruction( parent, position, NameList::_signal, input ); | |
2449 ++position; | |
2450 } | |
2451 // ++input; // TEMPORARY | |
2452 return inst_seen; | |
2453 } | |
2454 } | |
2455 // if no parens, then check for instruction name | |
2456 // This instruction is the parent of a sub-tree | |
2457 else if ((token = get_ident_dup()) != NULL) { | |
2458 const Form *form = _AD._globalNames[token]; | |
2459 if (form) { | |
2460 InstructForm *inst = form->is_instruction(); | |
2461 // Record the first instruction at this level | |
2462 if( inst_seen == NULL ) { | |
2463 inst_seen = inst; | |
2464 } | |
2465 if (inst) { | |
2466 match.add_instruction( parent, position, token, input ); | |
2467 parent = position; | |
2468 ++position; | |
2469 } else { | |
2470 parse_err(SYNERR, "instruction name expected at identifier %s.\n", | |
2471 token); | |
2472 return inst_seen; | |
2473 } | |
2474 } | |
2475 else { | |
2476 parse_err(SYNERR, "missing identifier in peepmatch rule.\n"); | |
2477 return NULL; | |
2478 } | |
2479 } | |
2480 else { | |
2481 parse_err(SYNERR, "missing identifier in peepmatch rule.\n"); | |
2482 return NULL; | |
2483 } | |
2484 | |
2485 } // end while | |
2486 | |
2487 assert( false, "ShouldNotReachHere();"); | |
2488 return NULL; | |
2489 } | |
2490 | |
2491 //------------------------------peep_match_parse------------------------------- | |
2492 // Syntax for a peepmatch rule | |
2493 // | |
2494 // peepmatch ( root_instr_name [(instruction subtree)] [,(instruction subtree)]* ); | |
2495 // | |
2496 void ADLParser::peep_match_parse(Peephole &peep) { | |
2497 | |
2498 skipws(); | |
2499 // Check the structure of the rule | |
2500 // Check for open paren | |
2501 if (_curchar != '(') { | |
2502 parse_err(SYNERR, "missing '(' at start of peepmatch rule.\n"); | |
2503 return; | |
2504 } | |
2505 next_char(); // skip '(' | |
2506 | |
2507 // Construct PeepMatch and parse the peepmatch rule. | |
2508 PeepMatch *match = new PeepMatch(_ptr); | |
2509 int parent = -1; // parent of root | |
2510 int position = 0; // zero-based positions | |
2511 int input = 0; // input position in parent's operands | |
2512 InstructForm *root= peep_match_child_parse( *match, parent, position, input); | |
2513 if( root == NULL ) { | |
2514 parse_err(SYNERR, "missing instruction-name at start of peepmatch.\n"); | |
2515 return; | |
2516 } | |
2517 | |
2518 if( _curchar != ')' ) { | |
2519 parse_err(SYNERR, "missing ')' at end of peepmatch.\n"); | |
2520 return; | |
2521 } | |
2522 next_char(); // skip ')' | |
2523 | |
2524 // Check for closing semicolon | |
2525 skipws(); | |
2526 if( _curchar != ';' ) { | |
2527 parse_err(SYNERR, "missing ';' at end of peepmatch.\n"); | |
2528 return; | |
2529 } | |
2530 next_char(); // skip ';' | |
2531 | |
2532 // Store match into peep, and store peep into instruction | |
2533 peep.add_match(match); | |
2534 root->append_peephole(&peep); | |
2535 } | |
2536 | |
2537 //------------------------------peep_constraint_parse-------------------------- | |
2538 // Syntax for a peepconstraint rule | |
2539 // A parenthesized list of relations between operands in peepmatch subtree | |
2540 // | |
2541 // peepconstraint %{ | |
2542 // (instruction_number.operand_name | |
2543 // relational_op | |
2544 // instruction_number.operand_name OR register_name | |
2545 // [, ...] ); | |
2546 // | |
2547 // // instruction numbers are zero-based using topological order in peepmatch | |
2548 // | |
2549 void ADLParser::peep_constraint_parse(Peephole &peep) { | |
2550 | |
2551 skipws(); | |
2552 // Check the structure of the rule | |
2553 // Check for open paren | |
2554 if (_curchar != '(') { | |
2555 parse_err(SYNERR, "missing '(' at start of peepconstraint rule.\n"); | |
2556 return; | |
2557 } | |
2558 else { | |
2559 next_char(); // Skip '(' | |
2560 } | |
2561 | |
2562 // Check for a constraint | |
2563 skipws(); | |
2564 while( _curchar != ')' ) { | |
2565 // Get information on the left instruction and its operand | |
2566 // left-instructions's number | |
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2567 int left_inst = get_int(); |
0 | 2568 // Left-instruction's operand |
2569 skipws(); | |
2570 if( _curchar != '.' ) { | |
2571 parse_err(SYNERR, "missing '.' in peepconstraint after instruction number.\n"); | |
2572 return; | |
2573 } | |
2574 next_char(); // Skip '.' | |
2575 char *left_op = get_ident_dup(); | |
2576 | |
2577 skipws(); | |
2578 // Collect relational operator | |
2579 char *relation = get_relation_dup(); | |
2580 | |
2581 skipws(); | |
2582 // Get information on the right instruction and its operand | |
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2583 int right_inst; // Right-instructions's number |
0 | 2584 if( isdigit(_curchar) ) { |
2585 right_inst = get_int(); | |
2586 // Right-instruction's operand | |
2587 skipws(); | |
2588 if( _curchar != '.' ) { | |
2589 parse_err(SYNERR, "missing '.' in peepconstraint after instruction number.\n"); | |
2590 return; | |
2591 } | |
2592 next_char(); // Skip '.' | |
2593 } else { | |
2594 right_inst = -1; // Flag as being a register constraint | |
2595 } | |
2596 | |
2597 char *right_op = get_ident_dup(); | |
2598 | |
2599 // Construct the next PeepConstraint | |
2600 PeepConstraint *constraint = new PeepConstraint( left_inst, left_op, | |
2601 relation, | |
2602 right_inst, right_op ); | |
2603 // And append it to the list for this peephole rule | |
2604 peep.append_constraint( constraint ); | |
2605 | |
2606 // Check for another constraint, or end of rule | |
2607 skipws(); | |
2608 if( _curchar == ',' ) { | |
2609 next_char(); // Skip ',' | |
2610 skipws(); | |
2611 } | |
2612 else if( _curchar != ')' ) { | |
2613 parse_err(SYNERR, "expected ',' or ')' after peephole constraint.\n"); | |
2614 return; | |
2615 } | |
2616 } // end while( processing constraints ) | |
2617 next_char(); // Skip ')' | |
2618 | |
2619 // Check for terminating ';' | |
2620 skipws(); | |
2621 if (_curchar != ';') { | |
2622 parse_err(SYNERR, "missing ';' at end of peepconstraint.\n"); | |
2623 return; | |
2624 } | |
2625 next_char(); // Skip trailing ';' | |
2626 } | |
2627 | |
2628 | |
2629 //------------------------------peep_replace_parse----------------------------- | |
2630 // Syntax for a peepreplace rule | |
2631 // root instruction name followed by a | |
2632 // parenthesized list of whitespace separated instruction.operand specifiers | |
2633 // | |
2634 // peepreplace ( instr_name ( [instruction_number.operand_name]* ) ); | |
2635 // | |
2636 // | |
2637 void ADLParser::peep_replace_parse(Peephole &peep) { | |
2638 int lparen = 0; // keep track of parenthesis nesting depth | |
2639 int rparen = 0; // keep track of parenthesis nesting depth | |
2640 int icount = 0; // count of instructions in rule for naming | |
2641 char *str = NULL; | |
2642 char *token = NULL; | |
2643 | |
2644 skipws(); | |
2645 // Check for open paren | |
2646 if (_curchar != '(') { | |
2647 parse_err(SYNERR, "missing '(' at start of peepreplace rule.\n"); | |
2648 return; | |
2649 } | |
2650 else { | |
2651 lparen++; | |
2652 next_char(); | |
2653 } | |
2654 | |
2655 // Check for root instruction | |
2656 char *inst = get_ident_dup(); | |
2657 const Form *form = _AD._globalNames[inst]; | |
2658 if( form == NULL || form->is_instruction() == NULL ) { | |
2659 parse_err(SYNERR, "Instruction name expected at start of peepreplace.\n"); | |
2660 return; | |
2661 } | |
2662 | |
2663 // Store string representation of rule into replace | |
2664 PeepReplace *replace = new PeepReplace(str); | |
2665 replace->add_instruction( inst ); | |
2666 | |
2667 skipws(); | |
2668 // Start of root's operand-list | |
2669 if (_curchar != '(') { | |
2670 parse_err(SYNERR, "missing '(' at peepreplace root's operand-list.\n"); | |
2671 return; | |
2672 } | |
2673 else { | |
2674 lparen++; | |
2675 next_char(); | |
2676 } | |
2677 | |
2678 skipws(); | |
2679 // Get the list of operands | |
2680 while( _curchar != ')' ) { | |
2681 // Get information on an instruction and its operand | |
2682 // instructions's number | |
2683 int inst_num = get_int(); | |
2684 // Left-instruction's operand | |
2685 skipws(); | |
2686 if( _curchar != '.' ) { | |
2687 parse_err(SYNERR, "missing '.' in peepreplace after instruction number.\n"); | |
2688 return; | |
2689 } | |
2690 next_char(); // Skip '.' | |
2691 char *inst_op = get_ident_dup(); | |
2692 if( inst_op == NULL ) { | |
2693 parse_err(SYNERR, "missing operand identifier in peepreplace.\n"); | |
2694 return; | |
2695 } | |
2696 | |
2697 // Record this operand's position in peepmatch | |
2698 replace->add_operand( inst_num, inst_op ); | |
2699 skipws(); | |
2700 } | |
2701 | |
2702 // Check for the end of operands list | |
2703 skipws(); | |
2704 assert( _curchar == ')', "While loop should have advanced to ')'."); | |
2705 next_char(); // Skip ')' | |
2706 | |
2707 skipws(); | |
2708 // Check for end of peepreplace | |
2709 if( _curchar != ')' ) { | |
2710 parse_err(SYNERR, "missing ')' at end of peepmatch.\n"); | |
2711 parse_err(SYNERR, "Support one replacement instruction.\n"); | |
2712 return; | |
2713 } | |
2714 next_char(); // Skip ')' | |
2715 | |
2716 // Check for closing semicolon | |
2717 skipws(); | |
2718 if( _curchar != ';' ) { | |
2719 parse_err(SYNERR, "missing ';' at end of peepreplace.\n"); | |
2720 return; | |
2721 } | |
2722 next_char(); // skip ';' | |
2723 | |
2724 // Store replace into peep | |
2725 peep.add_replace( replace ); | |
2726 } | |
2727 | |
2728 //------------------------------pred_parse------------------------------------- | |
2729 Predicate *ADLParser::pred_parse(void) { | |
2730 Predicate *predicate; // Predicate class for operand | |
2731 char *rule = NULL; // String representation of predicate | |
2732 | |
2733 skipws(); // Skip leading whitespace | |
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2734 int line = linenum(); |
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2735 if ( (rule = get_paren_expr("pred expression", true)) == NULL ) { |
0 | 2736 parse_err(SYNERR, "incorrect or missing expression for 'predicate'\n"); |
2737 return NULL; | |
2738 } | |
2739 // Debug Stuff | |
2740 if (_AD._adl_debug > 1) fprintf(stderr,"Predicate: %s\n", rule); | |
2741 if (_curchar != ';') { | |
2742 parse_err(SYNERR, "missing ';' in predicate definition\n"); | |
2743 return NULL; | |
2744 } | |
2745 next_char(); // Point after the terminator | |
2746 | |
2747 predicate = new Predicate(rule); // Build new predicate object | |
2748 skipws(); | |
2749 return predicate; | |
2750 } | |
2751 | |
2752 | |
2753 //------------------------------ins_encode_parse_block------------------------- | |
2754 // Parse the block form of ins_encode. See ins_encode_parse for more details | |
2008 | 2755 void ADLParser::ins_encode_parse_block(InstructForm& inst) { |
0 | 2756 // Create a new encoding name based on the name of the instruction |
2757 // definition, which should be unique. | |
2008 | 2758 const char* prefix = "__ins_encode_"; |
2759 char* ec_name = (char*) malloc(strlen(inst._ident) + strlen(prefix) + 1); | |
0 | 2760 sprintf(ec_name, "%s%s", prefix, inst._ident); |
2761 | |
2762 assert(_AD._encode->encClass(ec_name) == NULL, "shouldn't already exist"); | |
2008 | 2763 EncClass* encoding = _AD._encode->add_EncClass(ec_name); |
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2764 encoding->_linenum = linenum(); |
0 | 2765 |
2766 // synthesize the arguments list for the enc_class from the | |
2767 // arguments to the instruct definition. | |
2008 | 2768 const char* param = NULL; |
0 | 2769 inst._parameters.reset(); |
2770 while ((param = inst._parameters.iter()) != NULL) { | |
2008 | 2771 OperandForm* opForm = (OperandForm*) inst._localNames[param]; |
0 | 2772 encoding->add_parameter(opForm->_ident, param); |
2773 } | |
2774 | |
2008 | 2775 // Define a MacroAssembler instance for use by the encoding. The |
2776 // name is chosen to match the __ idiom used for assembly in other | |
2777 // parts of hotspot and assumes the existence of the standard | |
2778 // #define __ _masm. | |
2779 encoding->add_code(" MacroAssembler _masm(&cbuf);\n"); | |
0 | 2780 |
2781 // Parse the following %{ }% block | |
2008 | 2782 ins_encode_parse_block_impl(inst, encoding, ec_name); |
0 | 2783 |
2784 // Build an encoding rule which invokes the encoding rule we just | |
2785 // created, passing all arguments that we received. | |
2008 | 2786 InsEncode* encrule = new InsEncode(); // Encode class for instruction |
2787 NameAndList* params = encrule->add_encode(ec_name); | |
0 | 2788 inst._parameters.reset(); |
2789 while ((param = inst._parameters.iter()) != NULL) { | |
2790 params->add_entry(param); | |
2791 } | |
2792 | |
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2793 // Check for duplicate ins_encode sections after parsing the block |
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2794 // so that parsing can continue and find any other errors. |
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2795 if (inst._insencode != NULL) { |
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2796 parse_err(SYNERR, "Multiple ins_encode sections defined\n"); |
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2797 return; |
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|
2798 } |
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2799 |
2008 | 2800 // Set encode class of this instruction. |
2801 inst._insencode = encrule; | |
2802 } | |
2803 | |
2804 | |
2805 void ADLParser::ins_encode_parse_block_impl(InstructForm& inst, EncClass* encoding, char* ec_name) { | |
2806 skipws_no_preproc(); // Skip leading whitespace | |
2807 // Prepend location descriptor, for debugging; cf. ADLParser::find_cpp_block | |
2808 if (_AD._adlocation_debug) { | |
2809 encoding->add_code(get_line_string()); | |
2810 } | |
2811 | |
2812 // Collect the parts of the encode description | |
2813 // (1) strings that are passed through to output | |
2814 // (2) replacement/substitution variable, preceeded by a '$' | |
2815 while ((_curchar != '%') && (*(_ptr+1) != '}')) { | |
2816 | |
2817 // (1) | |
2818 // Check if there is a string to pass through to output | |
2819 char *start = _ptr; // Record start of the next string | |
2820 while ((_curchar != '$') && ((_curchar != '%') || (*(_ptr+1) != '}')) ) { | |
2821 // If at the start of a comment, skip past it | |
2822 if( (_curchar == '/') && ((*(_ptr+1) == '/') || (*(_ptr+1) == '*')) ) { | |
2823 skipws_no_preproc(); | |
2824 } else { | |
2825 // ELSE advance to the next character, or start of the next line | |
2826 next_char_or_line(); | |
2827 } | |
2828 } | |
2829 // If a string was found, terminate it and record in EncClass | |
2830 if (start != _ptr) { | |
2831 *_ptr = '\0'; // Terminate the string | |
2832 encoding->add_code(start); | |
2833 } | |
2834 | |
2835 // (2) | |
2836 // If we are at a replacement variable, | |
2837 // copy it and record in EncClass | |
2838 if (_curchar == '$') { | |
2839 // Found replacement Variable | |
2840 char* rep_var = get_rep_var_ident_dup(); | |
2841 | |
2842 // Add flag to _strings list indicating we should check _rep_vars | |
2843 encoding->add_rep_var(rep_var); | |
2844 | |
2845 skipws(); | |
2846 | |
2847 // Check if this instruct is a MachConstantNode. | |
2848 if (strcmp(rep_var, "constanttablebase") == 0) { | |
2849 // This instruct is a MachConstantNode. | |
2850 inst.set_is_mach_constant(true); | |
2851 | |
2852 if (_curchar == '(') { | |
2853 parse_err(SYNERR, "constanttablebase in instruct %s cannot have an argument (only constantaddress and constantoffset)", ec_name); | |
2854 return; | |
2855 } | |
2856 } | |
2857 else if ((strcmp(rep_var, "constantaddress") == 0) || | |
2858 (strcmp(rep_var, "constantoffset") == 0)) { | |
2859 // This instruct is a MachConstantNode. | |
2860 inst.set_is_mach_constant(true); | |
2861 | |
2862 // If the constant keyword has an argument, parse it. | |
2863 if (_curchar == '(') constant_parse(inst); | |
2864 } | |
2865 } | |
2866 } // end while part of format description | |
2867 next_char(); // Skip '%' | |
2868 next_char(); // Skip '}' | |
2869 | |
2870 skipws(); | |
2871 | |
2872 if (_AD._adlocation_debug) { | |
2873 encoding->add_code(end_line_marker()); | |
2874 } | |
2875 | |
2876 // Debug Stuff | |
2877 if (_AD._adl_debug > 1) fprintf(stderr, "EncodingClass Form: %s\n", ec_name); | |
0 | 2878 } |
2879 | |
2880 | |
2881 //------------------------------ins_encode_parse------------------------------- | |
2882 // Encode rules have the form | |
2883 // ins_encode( encode_class_name(parameter_list), ... ); | |
2884 // | |
2885 // The "encode_class_name" must be defined in the encode section | |
2886 // The parameter list contains $names that are locals. | |
2887 // | |
2888 // Alternatively it can be written like this: | |
2889 // | |
2890 // ins_encode %{ | |
2891 // ... // body | |
2892 // %} | |
2893 // | |
2894 // which synthesizes a new encoding class taking the same arguments as | |
2895 // the InstructForm, and automatically prefixes the definition with: | |
2896 // | |
2897 // MacroAssembler masm(&cbuf);\n"); | |
2898 // | |
2899 // making it more compact to take advantage of the MacroAssembler and | |
2900 // placing the assembly closer to it's use by instructions. | |
2008 | 2901 void ADLParser::ins_encode_parse(InstructForm& inst) { |
0 | 2902 |
2903 // Parse encode class name | |
2904 skipws(); // Skip whitespace | |
2905 if (_curchar != '(') { | |
2906 // Check for ins_encode %{ form | |
2907 if ((_curchar == '%') && (*(_ptr+1) == '{')) { | |
2908 next_char(); // Skip '%' | |
2909 next_char(); // Skip '{' | |
2910 | |
2911 // Parse the block form of ins_encode | |
2008 | 2912 ins_encode_parse_block(inst); |
2913 return; | |
0 | 2914 } |
2915 | |
2916 parse_err(SYNERR, "missing '%%{' or '(' in ins_encode definition\n"); | |
2008 | 2917 return; |
0 | 2918 } |
2919 next_char(); // move past '(' | |
2920 skipws(); | |
2921 | |
2922 InsEncode *encrule = new InsEncode(); // Encode class for instruction | |
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2923 encrule->_linenum = linenum(); |
0 | 2924 char *ec_name = NULL; // String representation of encode rule |
2925 // identifier is optional. | |
2926 while (_curchar != ')') { | |
2927 ec_name = get_ident(); | |
2928 if (ec_name == NULL) { | |
2929 parse_err(SYNERR, "Invalid encode class name after 'ins_encode('.\n"); | |
2008 | 2930 return; |
0 | 2931 } |
2932 // Check that encoding is defined in the encode section | |
2933 EncClass *encode_class = _AD._encode->encClass(ec_name); | |
2934 if (encode_class == NULL) { | |
2935 // Like to defer checking these till later... | |
2936 // parse_err(WARN, "Using an undefined encode class '%s' in 'ins_encode'.\n", ec_name); | |
2937 } | |
2938 | |
2939 // Get list for encode method's parameters | |
2940 NameAndList *params = encrule->add_encode(ec_name); | |
2941 | |
2942 // Parse the parameters to this encode method. | |
2943 skipws(); | |
2944 if ( _curchar == '(' ) { | |
2945 next_char(); // move past '(' for parameters | |
2946 | |
2947 // Parse the encode method's parameters | |
2948 while (_curchar != ')') { | |
2949 char *param = get_ident_or_literal_constant("encoding operand"); | |
2950 if ( param != NULL ) { | |
2951 // Found a parameter: | |
2952 // Check it is a local name, add it to the list, then check for more | |
2953 // New: allow hex constants as parameters to an encode method. | |
2954 // New: allow parenthesized expressions as parameters. | |
2955 // New: allow "primary", "secondary", "tertiary" as parameters. | |
2956 // New: allow user-defined register name as parameter | |
2957 if ( (inst._localNames[param] == NULL) && | |
2958 !ADLParser::is_literal_constant(param) && | |
2959 (Opcode::as_opcode_type(param) == Opcode::NOT_AN_OPCODE) && | |
2960 ((_AD._register == NULL ) || (_AD._register->getRegDef(param) == NULL)) ) { | |
2961 parse_err(SYNERR, "Using non-locally defined parameter %s for encoding %s.\n", param, ec_name); | |
2008 | 2962 return; |
0 | 2963 } |
2964 params->add_entry(param); | |
2965 | |
2966 skipws(); | |
2967 if (_curchar == ',' ) { | |
2968 // More parameters to come | |
2969 next_char(); // move past ',' between parameters | |
2970 skipws(); // Skip to next parameter | |
2971 } | |
2972 else if (_curchar == ')') { | |
2973 // Done with parameter list | |
2974 } | |
2975 else { | |
2976 // Only ',' or ')' are valid after a parameter name | |
2977 parse_err(SYNERR, "expected ',' or ')' after parameter %s.\n", | |
2978 ec_name); | |
2008 | 2979 return; |
0 | 2980 } |
2981 | |
2982 } else { | |
2983 skipws(); | |
2984 // Did not find a parameter | |
2985 if (_curchar == ',') { | |
2986 parse_err(SYNERR, "Expected encode parameter before ',' in encoding %s.\n", ec_name); | |
2008 | 2987 return; |
0 | 2988 } |
2989 if (_curchar != ')') { | |
2990 parse_err(SYNERR, "Expected ')' after encode parameters.\n"); | |
2008 | 2991 return; |
0 | 2992 } |
2993 } | |
2994 } // WHILE loop collecting parameters | |
2995 next_char(); // move past ')' at end of parameters | |
2996 } // done with parameter list for encoding | |
2997 | |
2998 // Check for ',' or ')' after encoding | |
2999 skipws(); // move to character after parameters | |
3000 if ( _curchar == ',' ) { | |
3001 // Found a ',' | |
3002 next_char(); // move past ',' between encode methods | |
3003 skipws(); | |
3004 } | |
3005 else if ( _curchar != ')' ) { | |
3006 // If not a ',' then only a ')' is allowed | |
3007 parse_err(SYNERR, "Expected ')' after encoding %s.\n", ec_name); | |
2008 | 3008 return; |
0 | 3009 } |
3010 | |
3011 // Check for ',' separating parameters | |
3012 // if ( _curchar != ',' && _curchar != ')' ) { | |
3013 // parse_err(SYNERR, "expected ',' or ')' after encode method inside ins_encode.\n"); | |
3014 // return NULL; | |
3015 // } | |
3016 | |
3017 } // done parsing ins_encode methods and their parameters | |
3018 if (_curchar != ')') { | |
3019 parse_err(SYNERR, "Missing ')' at end of ins_encode description.\n"); | |
2008 | 3020 return; |
0 | 3021 } |
3022 next_char(); // move past ')' | |
3023 skipws(); // Skip leading whitespace | |
3024 | |
3025 if ( _curchar != ';' ) { | |
3026 parse_err(SYNERR, "Missing ';' at end of ins_encode.\n"); | |
2008 | 3027 return; |
0 | 3028 } |
3029 next_char(); // move past ';' | |
3030 skipws(); // be friendly to oper_parse() | |
3031 | |
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diff
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|
3032 // Check for duplicate ins_encode sections after parsing the block |
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diff
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3033 // so that parsing can continue and find any other errors. |
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3034 if (inst._insencode != NULL) { |
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|
3035 parse_err(SYNERR, "Multiple ins_encode sections defined\n"); |
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7061101: adlc should complain about mixing block and expression forms of ins_encode
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|
3036 return; |
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|
3037 } |
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|
3038 |
0 | 3039 // Debug Stuff |
3040 if (_AD._adl_debug > 1) fprintf(stderr,"Instruction Encode: %s\n", ec_name); | |
3041 | |
2008 | 3042 // Set encode class of this instruction. |
3043 inst._insencode = encrule; | |
3044 } | |
3045 | |
3046 | |
3047 //------------------------------constant_parse--------------------------------- | |
3048 // Parse a constant expression. | |
3049 void ADLParser::constant_parse(InstructForm& inst) { | |
3050 // Create a new encoding name based on the name of the instruction | |
3051 // definition, which should be unique. | |
3052 const char* prefix = "__constant_"; | |
3053 char* ec_name = (char*) malloc(strlen(inst._ident) + strlen(prefix) + 1); | |
3054 sprintf(ec_name, "%s%s", prefix, inst._ident); | |
3055 | |
3056 assert(_AD._encode->encClass(ec_name) == NULL, "shouldn't already exist"); | |
3057 EncClass* encoding = _AD._encode->add_EncClass(ec_name); | |
3058 encoding->_linenum = linenum(); | |
3059 | |
3060 // synthesize the arguments list for the enc_class from the | |
3061 // arguments to the instruct definition. | |
3062 const char* param = NULL; | |
3063 inst._parameters.reset(); | |
3064 while ((param = inst._parameters.iter()) != NULL) { | |
3065 OperandForm* opForm = (OperandForm*) inst._localNames[param]; | |
3066 encoding->add_parameter(opForm->_ident, param); | |
3067 } | |
3068 | |
3069 // Parse the following ( ) expression. | |
3070 constant_parse_expression(encoding, ec_name); | |
3071 | |
3072 // Build an encoding rule which invokes the encoding rule we just | |
3073 // created, passing all arguments that we received. | |
3074 InsEncode* encrule = new InsEncode(); // Encode class for instruction | |
3075 NameAndList* params = encrule->add_encode(ec_name); | |
3076 inst._parameters.reset(); | |
3077 while ((param = inst._parameters.iter()) != NULL) { | |
3078 params->add_entry(param); | |
3079 } | |
3080 | |
3081 // Set encode class of this instruction. | |
3082 inst._constant = encrule; | |
3083 } | |
3084 | |
3085 | |
3086 //------------------------------constant_parse_expression---------------------- | |
3087 void ADLParser::constant_parse_expression(EncClass* encoding, char* ec_name) { | |
3088 skipws(); | |
3089 | |
3090 // Prepend location descriptor, for debugging; cf. ADLParser::find_cpp_block | |
3091 if (_AD._adlocation_debug) { | |
3092 encoding->add_code(get_line_string()); | |
3093 } | |
3094 | |
3095 // Start code line. | |
3096 encoding->add_code(" _constant = C->constant_table().add"); | |
3097 | |
3098 // Parse everything in ( ) expression. | |
4114
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3099 encoding->add_code("(this, "); |
2008 | 3100 next_char(); // Skip '(' |
3101 int parens_depth = 1; | |
3102 | |
3103 // Collect the parts of the constant expression. | |
3104 // (1) strings that are passed through to output | |
3105 // (2) replacement/substitution variable, preceeded by a '$' | |
3106 while (parens_depth > 0) { | |
3107 if (_curchar == '(') { | |
3108 parens_depth++; | |
3109 encoding->add_code("("); | |
3110 next_char(); | |
3111 } | |
3112 else if (_curchar == ')') { | |
3113 parens_depth--; | |
4114
6729bbc1fcd6
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twisti
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3114 if (parens_depth > 0) |
6729bbc1fcd6
7003454: order constants in constant table by number of references in code
twisti
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|
3115 encoding->add_code(")"); |
2008 | 3116 next_char(); |
3117 } | |
3118 else { | |
3119 // (1) | |
3120 // Check if there is a string to pass through to output | |
3121 char *start = _ptr; // Record start of the next string | |
3122 while ((_curchar != '$') && (_curchar != '(') && (_curchar != ')')) { | |
3123 next_char(); | |
3124 } | |
3125 // If a string was found, terminate it and record in EncClass | |
3126 if (start != _ptr) { | |
3127 *_ptr = '\0'; // Terminate the string | |
3128 encoding->add_code(start); | |
3129 } | |
3130 | |
3131 // (2) | |
3132 // If we are at a replacement variable, copy it and record in EncClass. | |
3133 if (_curchar == '$') { | |
3134 // Found replacement Variable | |
3135 char* rep_var = get_rep_var_ident_dup(); | |
3136 encoding->add_rep_var(rep_var); | |
3137 } | |
3138 } | |
3139 } | |
3140 | |
3141 // Finish code line. | |
4114
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7003454: order constants in constant table by number of references in code
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|
3142 encoding->add_code(");"); |
2008 | 3143 |
3144 if (_AD._adlocation_debug) { | |
3145 encoding->add_code(end_line_marker()); | |
3146 } | |
3147 | |
3148 // Debug Stuff | |
3149 if (_AD._adl_debug > 1) fprintf(stderr, "EncodingClass Form: %s\n", ec_name); | |
0 | 3150 } |
3151 | |
3152 | |
3153 //------------------------------size_parse----------------------------------- | |
3154 char* ADLParser::size_parse(InstructForm *instr) { | |
3155 char* sizeOfInstr = NULL; | |
3156 | |
3157 // Get value of the instruction's size | |
3158 skipws(); | |
3159 | |
3160 // Parse size | |
3161 sizeOfInstr = get_paren_expr("size expression"); | |
3162 if (sizeOfInstr == NULL) { | |
3163 parse_err(SYNERR, "size of opcode expected at %c\n", _curchar); | |
3164 return NULL; | |
3165 } | |
3166 | |
3167 skipws(); | |
3168 | |
3169 // Check for terminator | |
3170 if (_curchar != ';') { | |
3171 parse_err(SYNERR, "missing ';' in ins_attrib definition\n"); | |
3172 return NULL; | |
3173 } | |
3174 next_char(); // Advance past the ';' | |
3175 skipws(); // necessary for instr_parse() | |
3176 | |
3177 // Debug Stuff | |
3178 if (_AD._adl_debug > 1) { | |
3179 if (sizeOfInstr != NULL) { | |
3180 fprintf(stderr,"size of opcode: %s\n", sizeOfInstr); | |
3181 } | |
3182 } | |
3183 | |
3184 return sizeOfInstr; | |
3185 } | |
3186 | |
3187 | |
3188 //------------------------------opcode_parse----------------------------------- | |
3189 Opcode * ADLParser::opcode_parse(InstructForm *instr) { | |
3190 char *primary = NULL; | |
3191 char *secondary = NULL; | |
3192 char *tertiary = NULL; | |
3193 | |
3194 char *val = NULL; | |
3195 Opcode *opcode = NULL; | |
3196 | |
3197 // Get value of the instruction's opcode | |
3198 skipws(); | |
3199 if (_curchar != '(') { // Check for parenthesized operand list | |
3200 parse_err(SYNERR, "missing '(' in expand instruction declaration\n"); | |
3201 return NULL; | |
3202 } | |
3203 next_char(); // skip open paren | |
3204 skipws(); | |
3205 if (_curchar != ')') { | |
3206 // Parse primary, secondary, and tertiary opcodes, if provided. | |
3207 if ( ((primary = get_ident_or_literal_constant("primary opcode")) == NULL) ) { | |
3208 parse_err(SYNERR, "primary hex opcode expected at %c\n", _curchar); | |
3209 return NULL; | |
3210 } | |
3211 skipws(); | |
3212 if (_curchar == ',') { | |
3213 next_char(); | |
3214 skipws(); | |
3215 // Parse secondary opcode | |
3216 if ( ((secondary = get_ident_or_literal_constant("secondary opcode")) == NULL) ) { | |
3217 parse_err(SYNERR, "secondary hex opcode expected at %c\n", _curchar); | |
3218 return NULL; | |
3219 } | |
3220 skipws(); | |
3221 if (_curchar == ',') { | |
3222 next_char(); | |
3223 skipws(); | |
3224 // Parse tertiary opcode | |
3225 if ( ((tertiary = get_ident_or_literal_constant("tertiary opcode")) == NULL) ) { | |
3226 parse_err(SYNERR,"tertiary hex opcode expected at %c\n", _curchar); | |
3227 return NULL; | |
3228 } | |
3229 skipws(); | |
3230 } | |
3231 } | |
3232 skipws(); | |
3233 if (_curchar != ')') { | |
3234 parse_err(SYNERR, "Missing ')' in opcode description\n"); | |
3235 return NULL; | |
3236 } | |
3237 } | |
3238 next_char(); // Skip ')' | |
3239 skipws(); | |
3240 // Check for terminator | |
3241 if (_curchar != ';') { | |
3242 parse_err(SYNERR, "missing ';' in ins_attrib definition\n"); | |
3243 return NULL; | |
3244 } | |
3245 next_char(); // Advance past the ';' | |
3246 skipws(); // necessary for instr_parse() | |
3247 | |
3248 // Debug Stuff | |
3249 if (_AD._adl_debug > 1) { | |
3250 if (primary != NULL) fprintf(stderr,"primary opcode: %s\n", primary); | |
3251 if (secondary != NULL) fprintf(stderr,"secondary opcode: %s\n", secondary); | |
3252 if (tertiary != NULL) fprintf(stderr,"tertiary opcode: %s\n", tertiary); | |
3253 } | |
3254 | |
3255 // Generate new object and return | |
3256 opcode = new Opcode(primary, secondary, tertiary); | |
3257 return opcode; | |
3258 } | |
3259 | |
3260 | |
3261 //------------------------------interface_parse-------------------------------- | |
3262 Interface *ADLParser::interface_parse(void) { | |
3263 char *iface_name = NULL; // Name of interface class being used | |
3264 char *iface_code = NULL; // Describe components of this class | |
3265 | |
3266 // Get interface class name | |
3267 skipws(); // Skip whitespace | |
3268 if (_curchar != '(') { | |
3269 parse_err(SYNERR, "Missing '(' at start of interface description.\n"); | |
3270 return NULL; | |
3271 } | |
3272 next_char(); // move past '(' | |
3273 skipws(); | |
3274 iface_name = get_ident(); | |
3275 if (iface_name == NULL) { | |
3276 parse_err(SYNERR, "missing interface name after 'interface'.\n"); | |
3277 return NULL; | |
3278 } | |
3279 skipws(); | |
3280 if (_curchar != ')') { | |
3281 parse_err(SYNERR, "Missing ')' after name of interface.\n"); | |
3282 return NULL; | |
3283 } | |
3284 next_char(); // move past ')' | |
3285 | |
3286 // Get details of the interface, | |
3287 // for the type of interface indicated by iface_name. | |
3288 Interface *inter = NULL; | |
3289 skipws(); | |
3290 if ( _curchar != ';' ) { | |
3291 if ( strcmp(iface_name,"MEMORY_INTER") == 0 ) { | |
3292 inter = mem_interface_parse(); | |
3293 } | |
3294 else if ( strcmp(iface_name,"COND_INTER") == 0 ) { | |
3295 inter = cond_interface_parse(); | |
3296 } | |
3297 // The parse routines consume the "%}" | |
3298 | |
3299 // Check for probable extra ';' after defining block. | |
3300 if ( _curchar == ';' ) { | |
3301 parse_err(SYNERR, "Extra ';' after defining interface block.\n"); | |
3302 next_char(); // Skip ';' | |
3303 return NULL; | |
3304 } | |
3305 } else { | |
3306 next_char(); // move past ';' | |
3307 | |
3308 // Create appropriate interface object | |
3309 if ( strcmp(iface_name,"REG_INTER") == 0 ) { | |
3310 inter = new RegInterface(); | |
3311 } | |
3312 else if ( strcmp(iface_name,"CONST_INTER") == 0 ) { | |
3313 inter = new ConstInterface(); | |
3314 } | |
3315 } | |
3316 skipws(); // be friendly to oper_parse() | |
3317 // Debug Stuff | |
3318 if (_AD._adl_debug > 1) fprintf(stderr,"Interface Form: %s\n", iface_name); | |
3319 | |
3320 // Create appropriate interface object and return. | |
3321 return inter; | |
3322 } | |
3323 | |
3324 | |
3325 //------------------------------mem_interface_parse---------------------------- | |
3326 Interface *ADLParser::mem_interface_parse(void) { | |
3327 // Fields for MemInterface | |
3328 char *base = NULL; | |
3329 char *index = NULL; | |
3330 char *scale = NULL; | |
3331 char *disp = NULL; | |
3332 | |
3333 if (_curchar != '%') { | |
3334 parse_err(SYNERR, "Missing '%{' for 'interface' block.\n"); | |
3335 return NULL; | |
3336 } | |
3337 next_char(); // Skip '%' | |
3338 if (_curchar != '{') { | |
3339 parse_err(SYNERR, "Missing '%{' for 'interface' block.\n"); | |
3340 return NULL; | |
3341 } | |
3342 next_char(); // Skip '{' | |
3343 skipws(); | |
3344 do { | |
3345 char *field = get_ident(); | |
3346 if (field == NULL) { | |
3347 parse_err(SYNERR, "Expected keyword, base|index|scale|disp, or '%}' ending interface.\n"); | |
3348 return NULL; | |
3349 } | |
3350 if ( strcmp(field,"base") == 0 ) { | |
3351 base = interface_field_parse(); | |
3352 } | |
3353 else if ( strcmp(field,"index") == 0 ) { | |
3354 index = interface_field_parse(); | |
3355 } | |
3356 else if ( strcmp(field,"scale") == 0 ) { | |
3357 scale = interface_field_parse(); | |
3358 } | |
3359 else if ( strcmp(field,"disp") == 0 ) { | |
3360 disp = interface_field_parse(); | |
3361 } | |
3362 else { | |
3363 parse_err(SYNERR, "Expected keyword, base|index|scale|disp, or '%}' ending interface.\n"); | |
3364 return NULL; | |
3365 } | |
3366 } while( _curchar != '%' ); | |
3367 next_char(); // Skip '%' | |
3368 if ( _curchar != '}' ) { | |
3369 parse_err(SYNERR, "Missing '%}' for 'interface' block.\n"); | |
3370 return NULL; | |
3371 } | |
3372 next_char(); // Skip '}' | |
3373 | |
3374 // Construct desired object and return | |
3375 Interface *inter = new MemInterface(base, index, scale, disp); | |
3376 return inter; | |
3377 } | |
3378 | |
3379 | |
3380 //------------------------------cond_interface_parse--------------------------- | |
3381 Interface *ADLParser::cond_interface_parse(void) { | |
3382 char *equal; | |
3383 char *not_equal; | |
3384 char *less; | |
3385 char *greater_equal; | |
3386 char *less_equal; | |
3387 char *greater; | |
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3388 const char *equal_format = "eq"; |
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3389 const char *not_equal_format = "ne"; |
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3390 const char *less_format = "lt"; |
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3391 const char *greater_equal_format = "ge"; |
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3392 const char *less_equal_format = "le"; |
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3393 const char *greater_format = "gt"; |
0 | 3394 |
3395 if (_curchar != '%') { | |
3396 parse_err(SYNERR, "Missing '%{' for 'cond_interface' block.\n"); | |
3397 return NULL; | |
3398 } | |
3399 next_char(); // Skip '%' | |
3400 if (_curchar != '{') { | |
3401 parse_err(SYNERR, "Missing '%{' for 'cond_interface' block.\n"); | |
3402 return NULL; | |
3403 } | |
3404 next_char(); // Skip '{' | |
3405 skipws(); | |
3406 do { | |
3407 char *field = get_ident(); | |
3408 if (field == NULL) { | |
3409 parse_err(SYNERR, "Expected keyword, base|index|scale|disp, or '%}' ending interface.\n"); | |
3410 return NULL; | |
3411 } | |
3412 if ( strcmp(field,"equal") == 0 ) { | |
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3413 equal = interface_field_parse(&equal_format); |
0 | 3414 } |
3415 else if ( strcmp(field,"not_equal") == 0 ) { | |
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3416 not_equal = interface_field_parse(¬_equal_format); |
0 | 3417 } |
3418 else if ( strcmp(field,"less") == 0 ) { | |
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3419 less = interface_field_parse(&less_format); |
0 | 3420 } |
3421 else if ( strcmp(field,"greater_equal") == 0 ) { | |
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3422 greater_equal = interface_field_parse(&greater_equal_format); |
0 | 3423 } |
3424 else if ( strcmp(field,"less_equal") == 0 ) { | |
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3425 less_equal = interface_field_parse(&less_equal_format); |
0 | 3426 } |
3427 else if ( strcmp(field,"greater") == 0 ) { | |
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3428 greater = interface_field_parse(&greater_format); |
0 | 3429 } |
3430 else { | |
3431 parse_err(SYNERR, "Expected keyword, base|index|scale|disp, or '%}' ending interface.\n"); | |
3432 return NULL; | |
3433 } | |
3434 } while( _curchar != '%' ); | |
3435 next_char(); // Skip '%' | |
3436 if ( _curchar != '}' ) { | |
3437 parse_err(SYNERR, "Missing '%}' for 'interface' block.\n"); | |
3438 return NULL; | |
3439 } | |
3440 next_char(); // Skip '}' | |
3441 | |
3442 // Construct desired object and return | |
415
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3443 Interface *inter = new CondInterface(equal, equal_format, |
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3444 not_equal, not_equal_format, |
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3445 less, less_format, |
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3446 greater_equal, greater_equal_format, |
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3447 less_equal, less_equal_format, |
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|
3448 greater, greater_format); |
0 | 3449 return inter; |
3450 } | |
3451 | |
3452 | |
3453 //------------------------------interface_field_parse-------------------------- | |
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3454 char *ADLParser::interface_field_parse(const char ** format) { |
0 | 3455 char *iface_field = NULL; |
3456 | |
3457 // Get interface field | |
3458 skipws(); // Skip whitespace | |
3459 if (_curchar != '(') { | |
3460 parse_err(SYNERR, "Missing '(' at start of interface field.\n"); | |
3461 return NULL; | |
3462 } | |
3463 next_char(); // move past '(' | |
3464 skipws(); | |
3465 if ( _curchar != '0' && _curchar != '$' ) { | |
3466 parse_err(SYNERR, "missing or invalid interface field contents.\n"); | |
3467 return NULL; | |
3468 } | |
3469 iface_field = get_rep_var_ident(); | |
3470 if (iface_field == NULL) { | |
3471 parse_err(SYNERR, "missing or invalid interface field contents.\n"); | |
3472 return NULL; | |
3473 } | |
3474 skipws(); | |
415
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3475 if (format != NULL && _curchar == ',') { |
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|
3476 next_char(); |
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|
3477 skipws(); |
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|
3478 if (_curchar != '"') { |
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|
3479 parse_err(SYNERR, "Missing '\"' in field format .\n"); |
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|
3480 return NULL; |
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|
3481 } |
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|
3482 next_char(); |
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3483 char *start = _ptr; // Record start of the next string |
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3484 while ((_curchar != '"') && (_curchar != '%') && (_curchar != '\n')) { |
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3485 if (_curchar == '\\') next_char(); // superquote |
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|
3486 if (_curchar == '\n') parse_err(SYNERR, "newline in string"); // unimplemented! |
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|
3487 next_char(); |
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|
3488 } |
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|
3489 if (_curchar != '"') { |
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|
3490 parse_err(SYNERR, "Missing '\"' at end of field format .\n"); |
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|
3491 return NULL; |
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|
3492 } |
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|
3493 // If a string was found, terminate it and record in FormatRule |
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3494 if ( start != _ptr ) { |
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3495 *_ptr = '\0'; // Terminate the string |
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|
3496 *format = start; |
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|
3497 } |
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|
3498 next_char(); |
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|
3499 skipws(); |
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|
3500 } |
0 | 3501 if (_curchar != ')') { |
3502 parse_err(SYNERR, "Missing ')' after interface field.\n"); | |
3503 return NULL; | |
3504 } | |
3505 next_char(); // move past ')' | |
3506 skipws(); | |
3507 if ( _curchar != ';' ) { | |
3508 parse_err(SYNERR, "Missing ';' at end of interface field.\n"); | |
3509 return NULL; | |
3510 } | |
3511 next_char(); // move past ';' | |
3512 skipws(); // be friendly to interface_parse() | |
3513 | |
3514 return iface_field; | |
3515 } | |
3516 | |
3517 | |
3518 //------------------------------match_parse------------------------------------ | |
3519 MatchRule *ADLParser::match_parse(FormDict &operands) { | |
3520 MatchRule *match; // Match Rule class for instruction/operand | |
3521 char *cnstr = NULL; // Code for constructor | |
3522 int depth = 0; // Counter for matching parentheses | |
3523 int numleaves = 0; // Counter for number of leaves in rule | |
3524 | |
3525 // Parse the match rule tree | |
3526 MatchNode *mnode = matchNode_parse(operands, depth, numleaves, true); | |
3527 | |
3528 // Either there is a block with a constructor, or a ';' here | |
3529 skipws(); // Skip whitespace | |
3530 if ( _curchar == ';' ) { // Semicolon is valid terminator | |
3531 cnstr = NULL; // no constructor for this form | |
3532 next_char(); // Move past the ';', replaced with '\0' | |
3533 } | |
3534 else if ((cnstr = find_cpp_block("match constructor")) == NULL ) { | |
3535 parse_err(SYNERR, "invalid construction of match rule\n" | |
3536 "Missing ';' or invalid '%{' and '%}' constructor\n"); | |
3537 return NULL; // No MatchRule to return | |
3538 } | |
3539 if (_AD._adl_debug > 1) | |
3540 if (cnstr) fprintf(stderr,"Match Constructor: %s\n", cnstr); | |
3541 // Build new MatchRule object | |
3542 match = new MatchRule(_AD, mnode, depth, cnstr, numleaves); | |
3543 skipws(); // Skip any trailing whitespace | |
3544 return match; // Return MatchRule object | |
3545 } | |
3546 | |
3547 //------------------------------format_parse----------------------------------- | |
3548 FormatRule* ADLParser::format_parse(void) { | |
3549 char *desc = NULL; | |
3550 FormatRule *format = (new FormatRule(desc)); | |
3551 | |
3552 // Without expression form, MUST have a code block; | |
3553 skipws(); // Skip whitespace | |
3554 if ( _curchar == ';' ) { // Semicolon is valid terminator | |
3555 desc = NULL; // no constructor for this form | |
3556 next_char(); // Move past the ';', replaced with '\0' | |
3557 } | |
3558 else if ( _curchar == '%' && *(_ptr+1) == '{') { | |
3559 next_char(); // Move past the '%' | |
3560 next_char(); // Move past the '{' | |
3561 | |
3562 skipws(); | |
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3563 if (_curchar == '$') { |
4d9884b01ba6
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3564 char* ident = get_rep_var_ident(); |
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3565 if (strcmp(ident, "$$template") == 0) return template_parse(); |
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3566 parse_err(SYNERR, "Unknown \"%s\" directive in format", ident); |
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3567 return NULL; |
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|
3568 } |
0 | 3569 // Check for the opening '"' inside the format description |
3570 if ( _curchar == '"' ) { | |
3571 next_char(); // Move past the initial '"' | |
3572 if( _curchar == '"' ) { // Handle empty format string case | |
3573 *_ptr = '\0'; // Terminate empty string | |
3574 format->_strings.addName(_ptr); | |
3575 } | |
3576 | |
3577 // Collect the parts of the format description | |
3578 // (1) strings that are passed through to tty->print | |
3579 // (2) replacement/substitution variable, preceeded by a '$' | |
3580 // (3) multi-token ANSIY C style strings | |
3581 while ( true ) { | |
3582 if ( _curchar == '%' || _curchar == '\n' ) { | |
3583 if ( _curchar != '"' ) { | |
3584 parse_err(SYNERR, "missing '\"' at end of format block"); | |
3585 return NULL; | |
3586 } | |
3587 } | |
3588 | |
3589 // (1) | |
3590 // Check if there is a string to pass through to output | |
3591 char *start = _ptr; // Record start of the next string | |
3592 while ((_curchar != '$') && (_curchar != '"') && (_curchar != '%') && (_curchar != '\n')) { | |
475
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6771309: debugging AD files is difficult without #line directives in generated code
jrose
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415
diff
changeset
|
3593 if (_curchar == '\\') { |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
3594 next_char(); // superquote |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
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|
3595 if ((_curchar == '$') || (_curchar == '%')) |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
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diff
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|
3596 // hack to avoid % escapes and warnings about undefined \ escapes |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
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|
3597 *(_ptr-1) = _curchar; |
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|
3598 } |
0 | 3599 if (_curchar == '\n') parse_err(SYNERR, "newline in string"); // unimplemented! |
3600 next_char(); | |
3601 } | |
3602 // If a string was found, terminate it and record in FormatRule | |
3603 if ( start != _ptr ) { | |
3604 *_ptr = '\0'; // Terminate the string | |
3605 format->_strings.addName(start); | |
3606 } | |
3607 | |
3608 // (2) | |
3609 // If we are at a replacement variable, | |
3610 // copy it and record in FormatRule | |
3611 if ( _curchar == '$' ) { | |
3612 next_char(); // Move past the '$' | |
3613 char* rep_var = get_ident(); // Nil terminate the variable name | |
3614 rep_var = strdup(rep_var);// Copy the string | |
3615 *_ptr = _curchar; // and replace Nil with original character | |
3616 format->_rep_vars.addName(rep_var); | |
3617 // Add flag to _strings list indicating we should check _rep_vars | |
3618 format->_strings.addName(NameList::_signal); | |
3619 } | |
3620 | |
3621 // (3) | |
3622 // Allow very long strings to be broken up, | |
3623 // using the ANSI C syntax "foo\n" <newline> "bar" | |
3624 if ( _curchar == '"') { | |
3625 next_char(); // Move past the '"' | |
3626 skipws(); // Skip white space before next string token | |
3627 if ( _curchar != '"') { | |
3628 break; | |
3629 } else { | |
3630 // Found one. Skip both " and the whitespace in between. | |
3631 next_char(); | |
3632 } | |
3633 } | |
3634 } // end while part of format description | |
3635 | |
3636 // Check for closing '"' and '%}' in format description | |
3637 skipws(); // Move to closing '%}' | |
3638 if ( _curchar != '%' ) { | |
3639 parse_err(SYNERR, "non-blank characters between closing '\"' and '%' in format"); | |
3640 return NULL; | |
3641 } | |
3642 } // Done with format description inside | |
3643 | |
3644 skipws(); | |
3645 // Past format description, at '%' | |
3646 if ( _curchar != '%' || *(_ptr+1) != '}' ) { | |
3647 parse_err(SYNERR, "missing '%}' at end of format block"); | |
3648 return NULL; | |
3649 } | |
3650 next_char(); // Move past the '%' | |
3651 next_char(); // Move past the '}' | |
3652 } | |
3653 else { // parameter list alone must terminate with a ';' | |
3654 parse_err(SYNERR, "missing ';' after Format expression"); | |
3655 return NULL; | |
3656 } | |
3657 // Debug Stuff | |
3658 if (_AD._adl_debug > 1) fprintf(stderr,"Format Rule: %s\n", desc); | |
3659 | |
3660 skipws(); | |
3661 return format; | |
3662 } | |
3663 | |
3664 | |
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3665 //------------------------------template_parse----------------------------------- |
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|
3666 FormatRule* ADLParser::template_parse(void) { |
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6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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|
3667 char *desc = NULL; |
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|
3668 FormatRule *format = (new FormatRule(desc)); |
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|
3669 |
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|
3670 skipws(); |
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|
3671 while ( (_curchar != '%') && (*(_ptr+1) != '}') ) { |
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|
3672 |
4d9884b01ba6
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|
3673 // (1) |
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|
3674 // Check if there is a string to pass through to output |
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3675 { |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3676 char *start = _ptr; // Record start of the next string |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3677 while ((_curchar != '$') && ((_curchar != '%') || (*(_ptr+1) != '}')) ) { |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3678 // If at the start of a comment, skip past it |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3679 if( (_curchar == '/') && ((*(_ptr+1) == '/') || (*(_ptr+1) == '*')) ) { |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3680 skipws_no_preproc(); |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3681 } else { |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3682 // ELSE advance to the next character, or start of the next line |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3683 next_char_or_line(); |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3684 } |
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3685 } |
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3686 // If a string was found, terminate it and record in EncClass |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3687 if ( start != _ptr ) { |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3688 *_ptr = '\0'; // Terminate the string |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3689 // Add flag to _strings list indicating we should check _rep_vars |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3690 format->_strings.addName(NameList::_signal2); |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3691 format->_strings.addName(start); |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3692 } |
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3693 } |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3694 |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3695 // (2) |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3696 // If we are at a replacement variable, |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3697 // copy it and record in EncClass |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3698 if ( _curchar == '$' ) { |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3699 // Found replacement Variable |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3700 char *rep_var = get_rep_var_ident_dup(); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3701 if (strcmp(rep_var, "$emit") == 0) { |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3702 // switch to normal format parsing |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3703 next_char(); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3704 next_char(); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3705 skipws(); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3706 // Check for the opening '"' inside the format description |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3707 if ( _curchar == '"' ) { |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3708 next_char(); // Move past the initial '"' |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3709 if( _curchar == '"' ) { // Handle empty format string case |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3710 *_ptr = '\0'; // Terminate empty string |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3711 format->_strings.addName(_ptr); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3712 } |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3713 |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3714 // Collect the parts of the format description |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3715 // (1) strings that are passed through to tty->print |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3716 // (2) replacement/substitution variable, preceeded by a '$' |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3717 // (3) multi-token ANSIY C style strings |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3718 while ( true ) { |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3719 if ( _curchar == '%' || _curchar == '\n' ) { |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3720 parse_err(SYNERR, "missing '\"' at end of format block"); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3721 return NULL; |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3722 } |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3723 |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3724 // (1) |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3725 // Check if there is a string to pass through to output |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3726 char *start = _ptr; // Record start of the next string |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3727 while ((_curchar != '$') && (_curchar != '"') && (_curchar != '%') && (_curchar != '\n')) { |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3728 if (_curchar == '\\') next_char(); // superquote |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3729 if (_curchar == '\n') parse_err(SYNERR, "newline in string"); // unimplemented! |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3730 next_char(); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3731 } |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3732 // If a string was found, terminate it and record in FormatRule |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3733 if ( start != _ptr ) { |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3734 *_ptr = '\0'; // Terminate the string |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3735 format->_strings.addName(start); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3736 } |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3737 |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3738 // (2) |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3739 // If we are at a replacement variable, |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3740 // copy it and record in FormatRule |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3741 if ( _curchar == '$' ) { |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3742 next_char(); // Move past the '$' |
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3743 char* next_rep_var = get_ident(); // Nil terminate the variable name |
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3744 next_rep_var = strdup(next_rep_var);// Copy the string |
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3745 *_ptr = _curchar; // and replace Nil with original character |
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3746 format->_rep_vars.addName(next_rep_var); |
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3747 // Add flag to _strings list indicating we should check _rep_vars |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3748 format->_strings.addName(NameList::_signal); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3749 } |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3750 |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3751 // (3) |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3752 // Allow very long strings to be broken up, |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3753 // using the ANSI C syntax "foo\n" <newline> "bar" |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3754 if ( _curchar == '"') { |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3755 next_char(); // Move past the '"' |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3756 skipws(); // Skip white space before next string token |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3757 if ( _curchar != '"') { |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3758 break; |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3759 } else { |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3760 // Found one. Skip both " and the whitespace in between. |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3761 next_char(); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3762 } |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3763 } |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3764 } // end while part of format description |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3765 } |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3766 } else { |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3767 // Add flag to _strings list indicating we should check _rep_vars |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3768 format->_rep_vars.addName(rep_var); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3769 // Add flag to _strings list indicating we should check _rep_vars |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3770 format->_strings.addName(NameList::_signal3); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3771 } |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3772 } // end while part of format description |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3773 } |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3774 |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3775 skipws(); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3776 // Past format description, at '%' |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3777 if ( _curchar != '%' || *(_ptr+1) != '}' ) { |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3778 parse_err(SYNERR, "missing '%}' at end of format block"); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3779 return NULL; |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3780 } |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3781 next_char(); // Move past the '%' |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3782 next_char(); // Move past the '}' |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3783 |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3784 // Debug Stuff |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3785 if (_AD._adl_debug > 1) fprintf(stderr,"Format Rule: %s\n", desc); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3786 |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3787 skipws(); |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3788 return format; |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3789 } |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3790 |
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3791 |
0 | 3792 //------------------------------effect_parse----------------------------------- |
3793 void ADLParser::effect_parse(InstructForm *instr) { | |
3794 char* desc = NULL; | |
3795 | |
3796 skipws(); // Skip whitespace | |
3797 if (_curchar != '(') { | |
3798 parse_err(SYNERR, "missing '(' in effect definition\n"); | |
3799 return; | |
3800 } | |
3801 // Get list of effect-operand pairs and insert into dictionary | |
4120
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
4114
diff
changeset
|
3802 else get_effectlist(instr->_effects, instr->_localNames, instr->_has_call); |
0 | 3803 |
3804 // Debug Stuff | |
3805 if (_AD._adl_debug > 1) fprintf(stderr,"Effect description: %s\n", desc); | |
3806 if (_curchar != ';') { | |
3807 parse_err(SYNERR, "missing ';' in Effect definition\n"); | |
3808 } | |
3809 next_char(); // Skip ';' | |
3810 | |
3811 } | |
3812 | |
3813 //------------------------------expand_parse----------------------------------- | |
3814 ExpandRule* ADLParser::expand_parse(InstructForm *instr) { | |
3815 char *ident, *ident2; | |
3816 OperandForm *oper; | |
3817 InstructForm *ins; | |
3818 NameAndList *instr_and_operands = NULL; | |
3819 ExpandRule *exp = new ExpandRule(); | |
3820 | |
3821 // Expand is a block containing an ordered list of instructions, each of | |
3822 // which has an ordered list of operands. | |
3823 // Check for block delimiter | |
3824 skipws(); // Skip leading whitespace | |
3825 if ((_curchar != '%') | |
3826 || (next_char(), (_curchar != '{')) ) { // If not open block | |
3827 parse_err(SYNERR, "missing '%{' in expand definition\n"); | |
3828 return(NULL); | |
3829 } | |
3830 next_char(); // Maintain the invariant | |
3831 do { | |
3832 ident = get_ident(); // Grab next identifier | |
3833 if (ident == NULL) { | |
3834 parse_err(SYNERR, "identifier expected at %c\n", _curchar); | |
3835 continue; | |
3836 } // Check that you have a valid instruction | |
3837 const Form *form = _globalNames[ident]; | |
3838 ins = form ? form->is_instruction() : NULL; | |
3839 if (ins == NULL) { | |
3840 // This is a new operand | |
3841 oper = form ? form->is_operand() : NULL; | |
3842 if (oper == NULL) { | |
3843 parse_err(SYNERR, "instruction/operand name expected at %s\n", ident); | |
3844 continue; | |
3845 } | |
3846 // Throw the operand on the _newopers list | |
3847 skipws(); | |
3848 ident = get_unique_ident(instr->_localNames,"Operand"); | |
3849 if (ident == NULL) { | |
3850 parse_err(SYNERR, "identifier expected at %c\n", _curchar); | |
3851 continue; | |
3852 } | |
3853 exp->_newopers.addName(ident); | |
3854 // Add new operand to LocalNames | |
3855 instr->_localNames.Insert(ident, oper); | |
3856 // Grab any constructor code and save as a string | |
3857 char *c = NULL; | |
3858 skipws(); | |
3859 if (_curchar == '%') { // Need a constructor for the operand | |
3860 c = find_cpp_block("Operand Constructor"); | |
3861 if (c == NULL) { | |
3862 parse_err(SYNERR, "Invalid code block for operand constructor\n", _curchar); | |
3863 continue; | |
3864 } | |
3865 // Add constructor to _newopconst Dict | |
3866 exp->_newopconst.Insert(ident, c); | |
3867 } | |
3868 else if (_curchar != ';') { // If no constructor, need a ; | |
3869 parse_err(SYNERR, "Missing ; in expand rule operand declaration\n"); | |
3870 continue; | |
3871 } | |
3872 else next_char(); // Skip the ; | |
3873 skipws(); | |
3874 } | |
3875 else { | |
3876 // Add instruction to list | |
3877 instr_and_operands = new NameAndList(ident); | |
3878 // Grab operands, build nameList of them, and then put into dictionary | |
3879 skipws(); | |
3880 if (_curchar != '(') { // Check for parenthesized operand list | |
3881 parse_err(SYNERR, "missing '(' in expand instruction declaration\n"); | |
3882 continue; | |
3883 } | |
3884 do { | |
3885 next_char(); // skip open paren & comma characters | |
3886 skipws(); | |
3887 if (_curchar == ')') break; | |
3888 ident2 = get_ident(); | |
3889 skipws(); | |
3890 if (ident2 == NULL) { | |
3891 parse_err(SYNERR, "identifier expected at %c\n", _curchar); | |
3892 continue; | |
3893 } // Check that you have a valid operand | |
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3894 const Form *form2 = instr->_localNames[ident2]; |
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3895 if (!form2) { |
0 | 3896 parse_err(SYNERR, "operand name expected at %s\n", ident2); |
3897 continue; | |
3898 } | |
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3899 oper = form2->is_operand(); |
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3900 if (oper == NULL && !form2->is_opclass()) { |
0 | 3901 parse_err(SYNERR, "operand name expected at %s\n", ident2); |
3902 continue; | |
3903 } // Add operand to list | |
3904 instr_and_operands->add_entry(ident2); | |
3905 } while(_curchar == ','); | |
3906 if (_curchar != ')') { | |
3907 parse_err(SYNERR, "missing ')'in expand instruction declaration\n"); | |
3908 continue; | |
3909 } | |
3910 next_char(); | |
3911 if (_curchar != ';') { | |
3912 parse_err(SYNERR, "missing ';'in expand instruction declaration\n"); | |
3913 continue; | |
3914 } | |
3915 next_char(); | |
3916 | |
3917 // Record both instruction name and its operand list | |
3918 exp->add_instruction(instr_and_operands); | |
3919 | |
3920 skipws(); | |
3921 } | |
3922 | |
3923 } while(_curchar != '%'); | |
3924 next_char(); | |
3925 if (_curchar != '}') { | |
3926 parse_err(SYNERR, "missing '%}' in expand rule definition\n"); | |
3927 return(NULL); | |
3928 } | |
3929 next_char(); | |
3930 | |
3931 // Debug Stuff | |
3932 if (_AD._adl_debug > 1) fprintf(stderr,"Expand Rule:\n"); | |
3933 | |
3934 skipws(); | |
3935 return (exp); | |
3936 } | |
3937 | |
3938 //------------------------------rewrite_parse---------------------------------- | |
3939 RewriteRule* ADLParser::rewrite_parse(void) { | |
3940 char* params = NULL; | |
3941 char* desc = NULL; | |
3942 | |
3943 | |
3944 // This feature targeted for second generation description language. | |
3945 | |
3946 skipws(); // Skip whitespace | |
3947 // Get parameters for rewrite | |
3948 if ((params = get_paren_expr("rewrite parameters")) == NULL) { | |
3949 parse_err(SYNERR, "missing '(' in rewrite rule\n"); | |
3950 return NULL; | |
3951 } | |
3952 // Debug Stuff | |
3953 if (_AD._adl_debug > 1) fprintf(stderr,"Rewrite parameters: %s\n", params); | |
3954 | |
3955 // For now, grab entire block; | |
3956 skipws(); | |
3957 if ( (desc = find_cpp_block("rewrite block")) == NULL ) { | |
3958 parse_err(SYNERR, "incorrect or missing block for 'rewrite'.\n"); | |
3959 return NULL; | |
3960 } | |
3961 // Debug Stuff | |
3962 if (_AD._adl_debug > 1) fprintf(stderr,"Rewrite Rule: %s\n", desc); | |
3963 | |
3964 skipws(); | |
3965 return (new RewriteRule(params,desc)); | |
3966 } | |
3967 | |
3968 //------------------------------attr_parse------------------------------------- | |
3969 Attribute *ADLParser::attr_parse(char* ident) { | |
3970 Attribute *attrib; // Attribute class | |
3971 char *cost = NULL; // String representation of cost attribute | |
3972 | |
3973 skipws(); // Skip leading whitespace | |
3974 if ( (cost = get_paren_expr("attribute")) == NULL ) { | |
3975 parse_err(SYNERR, "incorrect or missing expression for 'attribute'\n"); | |
3976 return NULL; | |
3977 } | |
3978 // Debug Stuff | |
3979 if (_AD._adl_debug > 1) fprintf(stderr,"Attribute: %s\n", cost); | |
3980 if (_curchar != ';') { | |
3981 parse_err(SYNERR, "missing ';' in attribute definition\n"); | |
3982 return NULL; | |
3983 } | |
3984 next_char(); // Point after the terminator | |
3985 | |
3986 skipws(); | |
3987 attrib = new Attribute(ident,cost,INS_ATTR); // Build new predicate object | |
3988 return attrib; | |
3989 } | |
3990 | |
3991 | |
3992 //------------------------------matchNode_parse-------------------------------- | |
3993 MatchNode *ADLParser::matchNode_parse(FormDict &operands, int &depth, int &numleaves, bool atroot) { | |
3994 // Count depth of parenthesis nesting for both left and right children | |
3995 int lParens = depth; | |
3996 int rParens = depth; | |
3997 | |
3998 // MatchNode objects for left, right, and root of subtree. | |
3999 MatchNode *lChild = NULL; | |
4000 MatchNode *rChild = NULL; | |
4001 char *token; // Identifier which may be opcode or operand | |
4002 | |
4003 // Match expression starts with a '(' | |
4004 if (cur_char() != '(') | |
4005 return NULL; | |
4006 | |
4007 next_char(); // advance past '(' | |
4008 | |
4009 // Parse the opcode | |
4010 token = get_ident(); // Get identifier, opcode | |
4011 if (token == NULL) { | |
4012 parse_err(SYNERR, "missing opcode in match expression\n"); | |
4013 return NULL; | |
4014 } | |
4015 | |
4016 // Take note if we see one of a few special operations - those that are | |
4017 // treated differently on different architectures in the sense that on | |
4018 // one architecture there is a match rule and on another there isn't (so | |
4019 // a call will eventually be generated). | |
4020 | |
4021 for (int i = _last_machine_leaf + 1; i < _last_opcode; i++) { | |
4022 if (strcmp(token, NodeClassNames[i]) == 0) { | |
4023 _AD.has_match_rule(i, true); | |
4024 } | |
4025 } | |
4026 | |
4027 // Lookup the root value in the operands dict to perform substitution | |
4028 const char *result = NULL; // Result type will be filled in later | |
4029 const char *name = token; // local name associated with this node | |
4030 const char *operation = token; // remember valid operation for later | |
4031 const Form *form = operands[token]; | |
4032 OpClassForm *opcForm = form ? form->is_opclass() : NULL; | |
4033 if (opcForm != NULL) { | |
4034 // If this token is an entry in the local names table, record its type | |
4035 if (!opcForm->ideal_only()) { | |
4036 operation = opcForm->_ident; | |
4037 result = operation; // Operands result in their own type | |
4038 } | |
4039 // Otherwise it is an ideal type, and so, has no local name | |
4040 else name = NULL; | |
4041 } | |
4042 | |
4043 // Parse the operands | |
4044 skipws(); | |
4045 if (cur_char() != ')') { | |
4046 | |
4047 // Parse the left child | |
4048 if (strcmp(operation,"Set")) | |
4049 lChild = matchChild_parse(operands, lParens, numleaves, false); | |
4050 else | |
4051 lChild = matchChild_parse(operands, lParens, numleaves, true); | |
4052 | |
4053 skipws(); | |
4054 if (cur_char() != ')' ) { | |
4055 if(strcmp(operation, "Set")) | |
4056 rChild = matchChild_parse(operands,rParens,numleaves,false); | |
4057 else | |
4058 rChild = matchChild_parse(operands,rParens,numleaves,true); | |
4059 } | |
4060 } | |
4061 | |
4062 // Check for required ')' | |
4063 skipws(); | |
4064 if (cur_char() != ')') { | |
4065 parse_err(SYNERR, "missing ')' in match expression\n"); | |
4066 return NULL; | |
4067 } | |
4068 next_char(); // skip the ')' | |
4069 | |
4070 MatchNode* mroot = new MatchNode(_AD,result,name,operation,lChild,rChild); | |
4071 | |
4072 // If not the root, reduce this subtree to an internal operand | |
4073 if (!atroot) { | |
4074 mroot->build_internalop(); | |
4075 } | |
4076 // depth is greater of left and right paths. | |
4077 depth = (lParens > rParens) ? lParens : rParens; | |
4078 | |
4079 return mroot; | |
4080 } | |
4081 | |
4082 | |
4083 //------------------------------matchChild_parse------------------------------- | |
4084 MatchNode *ADLParser::matchChild_parse(FormDict &operands, int &parens, int &numleaves, bool atroot) { | |
4085 MatchNode *child = NULL; | |
4086 const char *result = NULL; | |
4087 const char *token = NULL; | |
4088 const char *opType = NULL; | |
4089 | |
4090 if (cur_char() == '(') { // child is an operation | |
4091 ++parens; | |
4092 child = matchNode_parse(operands, parens, numleaves, atroot); | |
4093 } | |
4094 else { // child is an operand | |
4095 token = get_ident(); | |
4096 const Form *form = operands[token]; | |
4097 OpClassForm *opcForm = form ? form->is_opclass() : NULL; | |
4098 if (opcForm != NULL) { | |
4099 opType = opcForm->_ident; | |
4100 result = opcForm->_ident; // an operand's result matches its type | |
4101 } else { | |
4102 parse_err(SYNERR, "undefined operand %s in match rule\n", token); | |
4103 return NULL; | |
4104 } | |
4105 | |
4106 if (opType == NULL) { | |
4107 parse_err(SYNERR, "missing type for argument '%s'\n", token); | |
4108 } | |
4109 | |
4110 child = new MatchNode(_AD, result, token, opType); | |
4111 ++numleaves; | |
4112 } | |
4113 | |
4114 return child; | |
4115 } | |
4116 | |
4117 | |
4118 | |
4119 // ******************** Private Utility Functions ************************* | |
4120 | |
4121 | |
4122 char* ADLParser::find_cpp_block(const char* description) { | |
4123 char *next; // Pointer for finding block delimiters | |
4124 char* cppBlock = NULL; // Beginning of C++ code block | |
4125 | |
4126 if (_curchar == '%') { // Encoding is a C++ expression | |
4127 next_char(); | |
4128 if (_curchar != '{') { | |
4129 parse_err(SYNERR, "missing '{' in %s \n", description); | |
4130 return NULL; | |
4131 } | |
4132 next_char(); // Skip block delimiter | |
4133 skipws_no_preproc(); // Skip leading whitespace | |
4134 cppBlock = _ptr; // Point to start of expression | |
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4135 int line = linenum(); |
0 | 4136 next = _ptr + 1; |
4137 while(((_curchar != '%') || (*next != '}')) && (_curchar != '\0')) { | |
4138 next_char_or_line(); | |
4139 next = _ptr+1; // Maintain the next pointer | |
4140 } // Grab string | |
4141 if (_curchar == '\0') { | |
4142 parse_err(SYNERR, "invalid termination of %s \n", description); | |
4143 return NULL; | |
4144 } | |
4145 *_ptr = '\0'; // Terminate string | |
4146 _ptr += 2; // Skip block delimiter | |
4147 _curchar = *_ptr; // Maintain invariant | |
4148 | |
4149 // Prepend location descriptor, for debugging. | |
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4150 if (_AD._adlocation_debug) { |
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4151 char* location = get_line_string(line); |
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4152 char* end_loc = end_line_marker(); |
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4153 char* result = (char *)malloc(strlen(location) + strlen(cppBlock) + strlen(end_loc) + 1); |
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4154 strcpy(result, location); |
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4155 strcat(result, cppBlock); |
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4156 strcat(result, end_loc); |
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4157 cppBlock = result; |
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4158 free(location); |
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4159 } |
0 | 4160 } |
4161 | |
4162 return cppBlock; | |
4163 } | |
4164 | |
4165 // Move to the closing token of the expression we are currently at, | |
4166 // as defined by stop_chars. Match parens and quotes. | |
4167 char* ADLParser::get_expr(const char *desc, const char *stop_chars) { | |
4168 char* expr = NULL; | |
4169 int paren = 0; | |
4170 | |
4171 expr = _ptr; | |
4172 while (paren > 0 || !strchr(stop_chars, _curchar)) { | |
4173 if (_curchar == '(') { // Down level of nesting | |
4174 paren++; // Bump the parenthesis counter | |
4175 next_char(); // maintain the invariant | |
4176 } | |
4177 else if (_curchar == ')') { // Up one level of nesting | |
4178 if (paren == 0) { | |
4179 // Paren underflow: We didn't encounter the required stop-char. | |
4180 parse_err(SYNERR, "too many )'s, did not find %s after %s\n", | |
4181 stop_chars, desc); | |
4182 return NULL; | |
4183 } | |
4184 paren--; // Drop the parenthesis counter | |
4185 next_char(); // Maintain the invariant | |
4186 } | |
4187 else if (_curchar == '"' || _curchar == '\'') { | |
4188 int qchar = _curchar; | |
4189 while (true) { | |
4190 next_char(); | |
4191 if (_curchar == qchar) { next_char(); break; } | |
4192 if (_curchar == '\\') next_char(); // superquote | |
4193 if (_curchar == '\n' || _curchar == '\0') { | |
4194 parse_err(SYNERR, "newline in string in %s\n", desc); | |
4195 return NULL; | |
4196 } | |
4197 } | |
4198 } | |
4199 else if (_curchar == '%' && (_ptr[1] == '{' || _ptr[1] == '}')) { | |
4200 // Make sure we do not stray into the next ADLC-level form. | |
4201 parse_err(SYNERR, "unexpected %%%c in %s\n", _ptr[1], desc); | |
4202 return NULL; | |
4203 } | |
4204 else if (_curchar == '\0') { | |
4205 parse_err(SYNERR, "unexpected EOF in %s\n", desc); | |
4206 return NULL; | |
4207 } | |
4208 else { | |
4209 // Always walk over whitespace, comments, preprocessor directives, etc. | |
4210 char* pre_skip_ptr = _ptr; | |
4211 skipws(); | |
4212 // If the parser declined to make progress on whitespace, | |
4213 // skip the next character, which is therefore NOT whitespace. | |
4214 if (pre_skip_ptr == _ptr) { | |
4215 next_char(); | |
4216 } else if (pre_skip_ptr+strlen(pre_skip_ptr) != _ptr+strlen(_ptr)) { | |
4217 parse_err(SYNERR, "unimplemented: preprocessor must not elide subexpression in %s", desc); | |
4218 } | |
4219 } | |
4220 } | |
4221 | |
4222 assert(strchr(stop_chars, _curchar), "non-null return must be at stop-char"); | |
4223 *_ptr = '\0'; // Replace ')' or other stop-char with '\0' | |
4224 return expr; | |
4225 } | |
4226 | |
4227 // Helper function around get_expr | |
4228 // Sets _curchar to '(' so that get_paren_expr will search for a matching ')' | |
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4229 char *ADLParser::get_paren_expr(const char *description, bool include_location) { |
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4230 int line = linenum(); |
0 | 4231 if (_curchar != '(') // Escape if not valid starting position |
4232 return NULL; | |
4233 next_char(); // Skip the required initial paren. | |
4234 char *token2 = get_expr(description, ")"); | |
4235 if (_curchar == ')') | |
4236 next_char(); // Skip required final paren. | |
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4237 int junk = 0; |
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4238 if (include_location && _AD._adlocation_debug && !is_int_token(token2, junk)) { |
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4239 // Prepend location descriptor, for debugging. |
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4240 char* location = get_line_string(line); |
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4241 char* end_loc = end_line_marker(); |
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4242 char* result = (char *)malloc(strlen(location) + strlen(token2) + strlen(end_loc) + 1); |
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4243 strcpy(result, location); |
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4244 strcat(result, token2); |
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4245 strcat(result, end_loc); |
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4246 token2 = result; |
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4247 free(location); |
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4248 } |
0 | 4249 return token2; |
4250 } | |
4251 | |
4252 //------------------------------get_ident_common------------------------------- | |
4253 // Looks for an identifier in the buffer, and turns it into a null terminated | |
4254 // string(still inside the file buffer). Returns a pointer to the string or | |
4255 // NULL if some other token is found instead. | |
4256 char *ADLParser::get_ident_common(bool do_preproc) { | |
4257 register char c; | |
4258 char *start; // Pointer to start of token | |
4259 char *end; // Pointer to end of token | |
4260 | |
4261 if( _curline == NULL ) // Return NULL at EOF. | |
4262 return NULL; | |
4263 | |
4264 skipws_common(do_preproc); // Skip whitespace before identifier | |
4265 start = end = _ptr; // Start points at first character | |
4266 end--; // unwind end by one to prepare for loop | |
4267 do { | |
4268 end++; // Increment end pointer | |
4269 c = *end; // Grab character to test | |
4270 } while ( ((c >= 'a') && (c <= 'z')) || ((c >= 'A') && (c <= 'Z')) | |
4271 || ((c >= '0') && (c <= '9')) | |
4272 || ((c == '_')) || ((c == ':')) || ((c == '#')) ); | |
4273 if (start == end) { // We popped out on the first try | |
4274 parse_err(SYNERR, "identifier expected at %c\n", c); | |
4275 start = NULL; | |
4276 } | |
4277 else { | |
4278 _curchar = c; // Save the first character of next token | |
4279 *end = '\0'; // NULL terminate the string in place | |
4280 } | |
4281 _ptr = end; // Reset _ptr to point to next char after token | |
4282 | |
4283 // Make sure we do not try to use #defined identifiers. If start is | |
4284 // NULL an error was already reported. | |
4285 if (do_preproc && start != NULL) { | |
4286 const char* def = _AD.get_preproc_def(start); | |
4287 if (def != NULL && strcmp(def, start)) { | |
475
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4288 const char* def1 = def; |
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|
4289 const char* def2 = _AD.get_preproc_def(def1); |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4290 // implement up to 2 levels of #define |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4291 if (def2 != NULL && strcmp(def2, def1)) { |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4292 def = def2; |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4293 const char* def3 = _AD.get_preproc_def(def2); |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4294 if (def3 != NULL && strcmp(def3, def2) && strcmp(def3, def1)) { |
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6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
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|
4295 parse_err(SYNERR, "unimplemented: using %s defined as %s => %s => %s", |
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6771309: debugging AD files is difficult without #line directives in generated code
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415
diff
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|
4296 start, def1, def2, def3); |
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6771309: debugging AD files is difficult without #line directives in generated code
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415
diff
changeset
|
4297 } |
0 | 4298 } |
4299 start = strdup(def); | |
4300 } | |
4301 } | |
4302 | |
4303 return start; // Pointer to token in filebuf | |
4304 } | |
4305 | |
4306 //------------------------------get_ident_dup---------------------------------- | |
4307 // Looks for an identifier in the buffer, and returns a duplicate | |
4308 // or NULL if some other token is found instead. | |
4309 char *ADLParser::get_ident_dup(void) { | |
4310 char *ident = get_ident(); | |
4311 | |
4312 // Duplicate an identifier before returning and restore string. | |
4313 if( ident != NULL ) { | |
4314 ident = strdup(ident); // Copy the string | |
4315 *_ptr = _curchar; // and replace Nil with original character | |
4316 } | |
4317 | |
4318 return ident; | |
4319 } | |
4320 | |
4321 //----------------------get_ident_or_literal_constant-------------------------- | |
4322 // Looks for an identifier in the buffer, or a parenthesized expression. | |
4323 char *ADLParser::get_ident_or_literal_constant(const char* description) { | |
4324 char* param = NULL; | |
4325 skipws(); | |
4326 if (_curchar == '(') { | |
4327 // Grab a constant expression. | |
4328 param = get_paren_expr(description); | |
4329 if (param[0] != '(') { | |
4330 char* buf = (char*) malloc(strlen(param) + 3); | |
4331 sprintf(buf, "(%s)", param); | |
4332 param = buf; | |
4333 } | |
4334 assert(is_literal_constant(param), | |
4335 "expr must be recognizable as a constant"); | |
4336 } else { | |
4337 param = get_ident(); | |
4338 } | |
4339 return param; | |
4340 } | |
4341 | |
4342 //------------------------------get_rep_var_ident----------------------------- | |
4343 // Do NOT duplicate, | |
4344 // Leave nil terminator in buffer | |
4345 // Preserve initial '$'(s) in string | |
4346 char *ADLParser::get_rep_var_ident(void) { | |
4347 // Remember starting point | |
4348 char *rep_var = _ptr; | |
4349 | |
4350 // Check for replacement variable indicator '$' and pass if present | |
4351 if ( _curchar == '$' ) { | |
4352 next_char(); | |
4353 } | |
4354 // Check for a subfield indicator, a second '$', and pass if present | |
4355 if ( _curchar == '$' ) { | |
4356 next_char(); | |
4357 } | |
4358 | |
4359 // Check for a control indicator, a third '$': | |
4360 if ( _curchar == '$' ) { | |
4361 next_char(); | |
4362 } | |
4363 | |
4364 // Check for more than three '$'s in sequence, SYNERR | |
4365 if( _curchar == '$' ) { | |
4366 parse_err(SYNERR, "Replacement variables and field specifiers can not start with '$$$$'"); | |
4367 next_char(); | |
4368 return NULL; | |
4369 } | |
4370 | |
4371 // Nil terminate the variable name following the '$' | |
4372 char *rep_var_name = get_ident(); | |
4373 assert( rep_var_name != NULL, | |
4374 "Missing identifier after replacement variable indicator '$'"); | |
4375 | |
4376 return rep_var; | |
4377 } | |
4378 | |
4379 | |
4380 | |
4381 //------------------------------get_rep_var_ident_dup------------------------- | |
4382 // Return the next replacement variable identifier, skipping first '$' | |
4383 // given a pointer into a line of the buffer. | |
4384 // Null terminates string, still inside the file buffer, | |
4385 // Returns a pointer to a copy of the string, or NULL on failure | |
4386 char *ADLParser::get_rep_var_ident_dup(void) { | |
4387 if( _curchar != '$' ) return NULL; | |
4388 | |
4389 next_char(); // Move past the '$' | |
4390 char *rep_var = _ptr; // Remember starting point | |
4391 | |
4392 // Check for a subfield indicator, a second '$': | |
4393 if ( _curchar == '$' ) { | |
4394 next_char(); | |
4395 } | |
4396 | |
4397 // Check for a control indicator, a third '$': | |
4398 if ( _curchar == '$' ) { | |
4399 next_char(); | |
4400 } | |
4401 | |
4402 // Check for more than three '$'s in sequence, SYNERR | |
4403 if( _curchar == '$' ) { | |
4404 parse_err(SYNERR, "Replacement variables and field specifiers can not start with '$$$$'"); | |
4405 next_char(); | |
4406 return NULL; | |
4407 } | |
4408 | |
4409 // Nil terminate the variable name following the '$' | |
4410 char *rep_var_name = get_ident(); | |
4411 assert( rep_var_name != NULL, | |
4412 "Missing identifier after replacement variable indicator '$'"); | |
4413 rep_var = strdup(rep_var); // Copy the string | |
4414 *_ptr = _curchar; // and replace Nil with original character | |
4415 | |
4416 return rep_var; | |
4417 } | |
4418 | |
4419 | |
4420 //------------------------------get_unique_ident------------------------------ | |
4421 // Looks for an identifier in the buffer, terminates it with a NULL, | |
4422 // and checks that it is unique | |
4423 char *ADLParser::get_unique_ident(FormDict& dict, const char* nameDescription){ | |
4424 char* ident = get_ident(); | |
4425 | |
4426 if (ident == NULL) { | |
4427 parse_err(SYNERR, "missing %s identifier at %c\n", nameDescription, _curchar); | |
4428 } | |
4429 else { | |
4430 if (dict[ident] != NULL) { | |
4431 parse_err(SYNERR, "duplicate name %s for %s\n", ident, nameDescription); | |
4432 ident = NULL; | |
4433 } | |
4434 } | |
4435 | |
4436 return ident; | |
4437 } | |
4438 | |
4439 | |
4440 //------------------------------get_int---------------------------------------- | |
4441 // Looks for a character string integer in the buffer, and turns it into an int | |
4442 // invokes a parse_err if the next token is not an integer. | |
4443 // This routine does not leave the integer null-terminated. | |
4444 int ADLParser::get_int(void) { | |
4445 register char c; | |
4446 char *start; // Pointer to start of token | |
4447 char *end; // Pointer to end of token | |
4448 int result; // Storage for integer result | |
4449 | |
4450 if( _curline == NULL ) // Return NULL at EOF. | |
603
dbbe28fc66b5
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488
diff
changeset
|
4451 return 0; |
0 | 4452 |
4453 skipws(); // Skip whitespace before identifier | |
4454 start = end = _ptr; // Start points at first character | |
4455 c = *end; // Grab character to test | |
4456 while ((c >= '0') && (c <= '9') | |
4457 || ((c == '-') && (end == start))) { | |
4458 end++; // Increment end pointer | |
4459 c = *end; // Grab character to test | |
4460 } | |
4461 if (start == end) { // We popped out on the first try | |
4462 parse_err(SYNERR, "integer expected at %c\n", c); | |
4463 result = 0; | |
4464 } | |
4465 else { | |
4466 _curchar = c; // Save the first character of next token | |
4467 *end = '\0'; // NULL terminate the string in place | |
4468 result = atoi(start); // Convert the string to an integer | |
4469 *end = _curchar; // Restore buffer to original condition | |
4470 } | |
4471 | |
4472 // Reset _ptr to next char after token | |
4473 _ptr = end; | |
4474 | |
4475 return result; // integer | |
4476 } | |
4477 | |
4478 | |
4479 //------------------------------get_relation_dup------------------------------ | |
4480 // Looks for a relational operator in the buffer | |
4481 // invokes a parse_err if the next token is not a relation | |
4482 // This routine creates a duplicate of the string in the buffer. | |
4483 char *ADLParser::get_relation_dup(void) { | |
4484 char *result = NULL; // relational operator being returned | |
4485 | |
4486 if( _curline == NULL ) // Return NULL at EOF. | |
4487 return NULL; | |
4488 | |
4489 skipws(); // Skip whitespace before relation | |
4490 char *start = _ptr; // Store start of relational operator | |
4491 char first = *_ptr; // the first character | |
4492 if( (first == '=') || (first == '!') || (first == '<') || (first == '>') ) { | |
4493 next_char(); | |
4494 char second = *_ptr; // the second character | |
4495 if( (second == '=') ) { | |
4496 next_char(); | |
4497 char tmp = *_ptr; | |
4498 *_ptr = '\0'; // NULL terminate | |
4499 result = strdup(start); // Duplicate the string | |
4500 *_ptr = tmp; // restore buffer | |
4501 } else { | |
4502 parse_err(SYNERR, "relational operator expected at %s\n", _ptr); | |
4503 } | |
4504 } else { | |
4505 parse_err(SYNERR, "relational operator expected at %s\n", _ptr); | |
4506 } | |
4507 | |
4508 return result; | |
4509 } | |
4510 | |
4511 | |
4512 | |
4513 //------------------------------get_oplist------------------------------------- | |
4514 // Looks for identifier pairs where first must be the name of an operand, and | |
4515 // second must be a name unique in the scope of this instruction. Stores the | |
4516 // names with a pointer to the OpClassForm of their type in a local name table. | |
4517 void ADLParser::get_oplist(NameList ¶meters, FormDict &operands) { | |
4518 OpClassForm *opclass = NULL; | |
4519 char *ident = NULL; | |
4520 | |
4521 do { | |
4522 next_char(); // skip open paren & comma characters | |
4523 skipws(); | |
4524 if (_curchar == ')') break; | |
4525 | |
4526 // Get operand type, and check it against global name table | |
4527 ident = get_ident(); | |
4528 if (ident == NULL) { | |
4529 parse_err(SYNERR, "optype identifier expected at %c\n", _curchar); | |
4530 return; | |
4531 } | |
4532 else { | |
4533 const Form *form = _globalNames[ident]; | |
4534 if( form == NULL ) { | |
4535 parse_err(SYNERR, "undefined operand type %s\n", ident); | |
4536 return; | |
4537 } | |
4538 | |
4539 // Check for valid operand type | |
4540 OpClassForm *opc = form->is_opclass(); | |
4541 OperandForm *oper = form->is_operand(); | |
4542 if((oper == NULL) && (opc == NULL)) { | |
4543 parse_err(SYNERR, "identifier %s not operand type\n", ident); | |
4544 return; | |
4545 } | |
4546 opclass = opc; | |
4547 } | |
4548 // Debugging Stuff | |
4549 if (_AD._adl_debug > 1) fprintf(stderr, "\tOperand Type: %s\t", ident); | |
4550 | |
4551 // Get name of operand and add it to local name table | |
4552 if( (ident = get_unique_ident(operands, "operand")) == NULL) { | |
4553 return; | |
4554 } | |
4555 // Parameter names must not be global names. | |
4556 if( _globalNames[ident] != NULL ) { | |
4557 parse_err(SYNERR, "Reuse of global name %s as operand.\n",ident); | |
4558 return; | |
4559 } | |
4560 operands.Insert(ident, opclass); | |
4561 parameters.addName(ident); | |
4562 | |
4563 // Debugging Stuff | |
4564 if (_AD._adl_debug > 1) fprintf(stderr, "\tOperand Name: %s\n", ident); | |
4565 skipws(); | |
4566 } while(_curchar == ','); | |
4567 | |
4568 if (_curchar != ')') parse_err(SYNERR, "missing ')'\n"); | |
4569 else { | |
4570 next_char(); // set current character position past the close paren | |
4571 } | |
4572 } | |
4573 | |
4574 | |
4575 //------------------------------get_effectlist--------------------------------- | |
4576 // Looks for identifier pairs where first must be the name of a pre-defined, | |
4577 // effect, and the second must be the name of an operand defined in the | |
4578 // operand list of this instruction. Stores the names with a pointer to the | |
4579 // effect form in a local effects table. | |
4120
f03a3c8bd5e5
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4114
diff
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|
4580 void ADLParser::get_effectlist(FormDict &effects, FormDict &operands, bool& has_call) { |
0 | 4581 OperandForm *opForm; |
4582 Effect *eForm; | |
4583 char *ident; | |
4584 | |
4585 do { | |
4586 next_char(); // skip open paren & comma characters | |
4587 skipws(); | |
4588 if (_curchar == ')') break; | |
4589 | |
4590 // Get effect type, and check it against global name table | |
4591 ident = get_ident(); | |
4592 if (ident == NULL) { | |
4593 parse_err(SYNERR, "effect type identifier expected at %c\n", _curchar); | |
4594 return; | |
4595 } | |
4596 else { | |
4597 // Check for valid effect type | |
4598 const Form *form = _globalNames[ident]; | |
4599 if( form == NULL ) { | |
4600 parse_err(SYNERR, "undefined effect type %s\n", ident); | |
4601 return; | |
4602 } | |
4603 else { | |
4604 if( (eForm = form->is_effect()) == NULL) { | |
4605 parse_err(SYNERR, "identifier %s not effect type\n", ident); | |
4606 return; | |
4607 } | |
4608 } | |
4609 } | |
4610 // Debugging Stuff | |
4611 if (_AD._adl_debug > 1) fprintf(stderr, "\tEffect Type: %s\t", ident); | |
4612 skipws(); | |
4120
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
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4114
diff
changeset
|
4613 if (eForm->is(Component::CALL)) { |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
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4114
diff
changeset
|
4614 if (_AD._adl_debug > 1) fprintf(stderr, "\n"); |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
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4114
diff
changeset
|
4615 has_call = true; |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
4114
diff
changeset
|
4616 } else { |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
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4114
diff
changeset
|
4617 // Get name of operand and check that it is in the local name table |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
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4114
diff
changeset
|
4618 if( (ident = get_unique_ident(effects, "effect")) == NULL) { |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
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4114
diff
changeset
|
4619 parse_err(SYNERR, "missing operand identifier in effect list\n"); |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
4114
diff
changeset
|
4620 return; |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
4114
diff
changeset
|
4621 } |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
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4114
diff
changeset
|
4622 const Form *form = operands[ident]; |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
4114
diff
changeset
|
4623 opForm = form ? form->is_operand() : NULL; |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
4114
diff
changeset
|
4624 if( opForm == NULL ) { |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
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4114
diff
changeset
|
4625 if( form && form->is_opclass() ) { |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
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4114
diff
changeset
|
4626 const char* cname = form->is_opclass()->_ident; |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
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4114
diff
changeset
|
4627 parse_err(SYNERR, "operand classes are illegal in effect lists (found %s %s)\n", cname, ident); |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
4114
diff
changeset
|
4628 } else { |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
4114
diff
changeset
|
4629 parse_err(SYNERR, "undefined operand %s in effect list\n", ident); |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
4114
diff
changeset
|
4630 } |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
4114
diff
changeset
|
4631 return; |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
4114
diff
changeset
|
4632 } |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
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4114
diff
changeset
|
4633 // Add the pair to the effects table |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
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4114
diff
changeset
|
4634 effects.Insert(ident, eForm); |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
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4114
diff
changeset
|
4635 // Debugging Stuff |
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
4114
diff
changeset
|
4636 if (_AD._adl_debug > 1) fprintf(stderr, "\tOperand Name: %s\n", ident); |
0 | 4637 } |
4638 skipws(); | |
4639 } while(_curchar == ','); | |
4640 | |
4641 if (_curchar != ')') parse_err(SYNERR, "missing ')'\n"); | |
4642 else { | |
4643 next_char(); // set current character position past the close paren | |
4644 } | |
4645 } | |
4646 | |
4647 | |
475
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
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415
diff
changeset
|
4648 //-------------------------------preproc_line---------------------------------- |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
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415
diff
changeset
|
4649 // A "#line" keyword has been seen, so parse the rest of the line. |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4650 void ADLParser::preproc_line(void) { |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4651 int line = get_int(); |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4652 skipws_no_preproc(); |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4653 const char* file = NULL; |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4654 if (_curchar == '"') { |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4655 next_char(); // Move past the initial '"' |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4656 file = _ptr; |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4657 while (true) { |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4658 if (_curchar == '\n') { |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4659 parse_err(SYNERR, "missing '\"' at end of #line directive"); |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4660 return; |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4661 } |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4662 if (_curchar == '"') { |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4663 *_ptr = '\0'; // Terminate the string |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4664 next_char(); |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4665 skipws_no_preproc(); |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4666 break; |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4667 } |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4668 next_char(); |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4669 } |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4670 } |
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
4671 ensure_end_of_line(); |
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4672 if (file != NULL) |
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4673 _AD._ADL_file._name = file; |
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4674 _buf.set_linenum(line); |
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4675 } |
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4676 |
0 | 4677 //------------------------------preproc_define--------------------------------- |
4678 // A "#define" keyword has been seen, so parse the rest of the line. | |
4679 void ADLParser::preproc_define(void) { | |
4680 char* flag = get_ident_no_preproc(); | |
4681 skipws_no_preproc(); | |
4682 // only #define x y is supported for now | |
4683 char* def = get_ident_no_preproc(); | |
4684 _AD.set_preproc_def(flag, def); | |
4685 skipws_no_preproc(); | |
4686 if (_curchar != '\n') { | |
4687 parse_err(SYNERR, "non-identifier in preprocessor definition\n"); | |
4688 } | |
4689 } | |
4690 | |
4691 //------------------------------preproc_undef---------------------------------- | |
4692 // An "#undef" keyword has been seen, so parse the rest of the line. | |
4693 void ADLParser::preproc_undef(void) { | |
4694 char* flag = get_ident_no_preproc(); | |
4695 skipws_no_preproc(); | |
4696 ensure_end_of_line(); | |
4697 _AD.set_preproc_def(flag, NULL); | |
4698 } | |
4699 | |
4700 | |
4701 | |
4702 //------------------------------parse_err-------------------------------------- | |
4703 // Issue a parser error message, and skip to the end of the current line | |
4704 void ADLParser::parse_err(int flag, const char *fmt, ...) { | |
4705 va_list args; | |
4706 | |
4707 va_start(args, fmt); | |
4708 if (flag == 1) | |
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4709 _AD._syntax_errs += _AD.emit_msg(0, flag, linenum(), fmt, args); |
0 | 4710 else if (flag == 2) |
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4711 _AD._semantic_errs += _AD.emit_msg(0, flag, linenum(), fmt, args); |
0 | 4712 else |
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4713 _AD._warnings += _AD.emit_msg(0, flag, linenum(), fmt, args); |
0 | 4714 |
4715 int error_char = _curchar; | |
4716 char* error_ptr = _ptr+1; | |
4717 for(;*_ptr != '\n'; _ptr++) ; // Skip to the end of the current line | |
4718 _curchar = '\n'; | |
4719 va_end(args); | |
4720 _AD._no_output = 1; | |
4721 | |
4722 if (flag == 1) { | |
4723 char* error_tail = strchr(error_ptr, '\n'); | |
4724 char tem = *error_ptr; | |
4725 error_ptr[-1] = '\0'; | |
4726 char* error_head = error_ptr-1; | |
4727 while (error_head > _curline && *error_head) --error_head; | |
4728 if (error_tail) *error_tail = '\0'; | |
4729 fprintf(stderr, "Error Context: %s>>>%c<<<%s\n", | |
4730 error_head, error_char, error_ptr); | |
4731 if (error_tail) *error_tail = '\n'; | |
4732 error_ptr[-1] = tem; | |
4733 } | |
4734 } | |
4735 | |
4736 //---------------------------ensure_start_of_line------------------------------ | |
4737 // A preprocessor directive has been encountered. Be sure it has fallen at | |
605 | 4738 // the beginning of a line, or else report an error. |
0 | 4739 void ADLParser::ensure_start_of_line(void) { |
475
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4740 if (_curchar == '\n') { next_line(); return; } |
0 | 4741 assert( _ptr >= _curline && _ptr < _curline+strlen(_curline), |
4742 "Must be able to find which line we are in" ); | |
4743 | |
4744 for (char *s = _curline; s < _ptr; s++) { | |
4745 if (*s > ' ') { | |
4746 parse_err(SYNERR, "'%c' must be at beginning of line\n", _curchar); | |
4747 break; | |
4748 } | |
4749 } | |
4750 } | |
4751 | |
4752 //---------------------------ensure_end_of_line-------------------------------- | |
4753 // A preprocessor directive has been parsed. Be sure there is no trailing | |
4754 // garbage at the end of this line. Set the scan point to the beginning of | |
4755 // the next line. | |
4756 void ADLParser::ensure_end_of_line(void) { | |
4757 skipws_no_preproc(); | |
4758 if (_curchar != '\n' && _curchar != '\0') { | |
4759 parse_err(SYNERR, "garbage char '%c' at end of line\n", _curchar); | |
4760 } else { | |
4761 next_char_or_line(); | |
4762 } | |
4763 } | |
4764 | |
4765 //---------------------------handle_preproc------------------------------------ | |
4766 // The '#' character introducing a preprocessor directive has been found. | |
4767 // Parse the whole directive name (e.g., #define, #endif) and take appropriate | |
4768 // action. If we are in an "untaken" span of text, simply keep track of | |
4769 // #ifdef nesting structure, so we can find out when to start taking text | |
4770 // again. (In this state, we "sort of support" C's #if directives, enough | |
4771 // to disregard their associated #else and #endif lines.) If we are in a | |
4772 // "taken" span of text, there are two cases: "#define" and "#undef" | |
4773 // directives are preserved and passed up to the caller, which eventually | |
4774 // passes control to the top-level parser loop, which handles #define and | |
4775 // #undef directly. (This prevents these directives from occurring in | |
4776 // arbitrary positions in the AD file--we require better structure than C.) | |
4777 // In the other case, and #ifdef, #ifndef, #else, or #endif is silently | |
4778 // processed as whitespace, with the "taken" state of the text correctly | |
4779 // updated. This routine returns "false" exactly in the case of a "taken" | |
4780 // #define or #undef, which tells the caller that a preprocessor token | |
4781 // has appeared which must be handled explicitly by the parse loop. | |
4782 bool ADLParser::handle_preproc_token() { | |
4783 assert(*_ptr == '#', "must be at start of preproc"); | |
4784 ensure_start_of_line(); | |
4785 next_char(); | |
4786 skipws_no_preproc(); | |
4787 char* start_ident = _ptr; | |
4788 char* ident = (_curchar == '\n') ? NULL : get_ident_no_preproc(); | |
4789 if (ident == NULL) { | |
4790 parse_err(SYNERR, "expected preprocessor command, got end of line\n"); | |
4791 } else if (!strcmp(ident, "ifdef") || | |
4792 !strcmp(ident, "ifndef")) { | |
4793 char* flag = get_ident_no_preproc(); | |
4794 ensure_end_of_line(); | |
4795 // Test the identifier only if we are already in taken code: | |
4796 bool flag_def = preproc_taken() && (_AD.get_preproc_def(flag) != NULL); | |
4797 bool now_taken = !strcmp(ident, "ifdef") ? flag_def : !flag_def; | |
4798 begin_if_def(now_taken); | |
4799 } else if (!strcmp(ident, "if")) { | |
4800 if (preproc_taken()) | |
4801 parse_err(SYNERR, "unimplemented: #%s %s", ident, _ptr+1); | |
4802 next_line(); | |
4803 // Intelligently skip this nested C preprocessor directive: | |
4804 begin_if_def(true); | |
4805 } else if (!strcmp(ident, "else")) { | |
4806 ensure_end_of_line(); | |
4807 invert_if_def(); | |
4808 } else if (!strcmp(ident, "endif")) { | |
4809 ensure_end_of_line(); | |
4810 end_if_def(); | |
4811 } else if (preproc_taken()) { | |
4812 // pass this token up to the main parser as "#define" or "#undef" | |
4813 _ptr = start_ident; | |
4814 _curchar = *--_ptr; | |
4815 if( _curchar != '#' ) { | |
4816 parse_err(SYNERR, "no space allowed after # in #define or #undef"); | |
4817 assert(_curchar == '#', "no space allowed after # in #define or #undef"); | |
4818 } | |
4819 return false; | |
4820 } | |
4821 return true; | |
4822 } | |
4823 | |
4824 //---------------------------skipws_common------------------------------------- | |
4825 // Skip whitespace, including comments and newlines, while keeping an accurate | |
4826 // line count. | |
4827 // Maybe handle certain preprocessor constructs: #ifdef, #ifndef, #else, #endif | |
4828 void ADLParser::skipws_common(bool do_preproc) { | |
4829 char *start = _ptr; | |
4830 char *next = _ptr + 1; | |
4831 | |
4832 if (*_ptr == '\0') { | |
4833 // Check for string terminator | |
4834 if (_curchar > ' ') return; | |
4835 if (_curchar == '\n') { | |
4836 if (!do_preproc) return; // let caller handle the newline | |
4837 next_line(); | |
4838 _ptr = _curline; next = _ptr + 1; | |
4839 } | |
4840 else if (_curchar == '#' || | |
4841 (_curchar == '/' && (*next == '/' || *next == '*'))) { | |
4842 parse_err(SYNERR, "unimplemented: comment token in a funny place"); | |
4843 } | |
4844 } | |
4845 while(_curline != NULL) { // Check for end of file | |
4846 if (*_ptr == '\n') { // keep proper track of new lines | |
4847 if (!do_preproc) break; // let caller handle the newline | |
4848 next_line(); | |
4849 _ptr = _curline; next = _ptr + 1; | |
4850 } | |
4851 else if ((*_ptr == '/') && (*next == '/')) // C++ comment | |
4852 do { _ptr++; next++; } while(*_ptr != '\n'); // So go to end of line | |
4853 else if ((*_ptr == '/') && (*next == '*')) { // C comment | |
4854 _ptr++; next++; | |
4855 do { | |
4856 _ptr++; next++; | |
4857 if (*_ptr == '\n') { // keep proper track of new lines | |
4858 next_line(); // skip newlines within comments | |
4859 if (_curline == NULL) { // check for end of file | |
4860 parse_err(SYNERR, "end-of-file detected inside comment\n"); | |
4861 break; | |
4862 } | |
4863 _ptr = _curline; next = _ptr + 1; | |
4864 } | |
4865 } while(!((*_ptr == '*') && (*next == '/'))); // Go to end of comment | |
4866 _ptr = ++next; next++; // increment _ptr past comment end | |
4867 } | |
4868 else if (do_preproc && *_ptr == '#') { | |
4869 // Note that this calls skipws_common(false) recursively! | |
4870 bool preproc_handled = handle_preproc_token(); | |
4871 if (!preproc_handled) { | |
4872 if (preproc_taken()) { | |
4873 return; // short circuit | |
4874 } | |
4875 ++_ptr; // skip the preprocessor character | |
4876 } | |
4877 next = _ptr+1; | |
4878 } else if(*_ptr > ' ' && !(do_preproc && !preproc_taken())) { | |
4879 break; | |
4880 } | |
4881 else if (*_ptr == '"' || *_ptr == '\'') { | |
4882 assert(do_preproc, "only skip strings if doing preproc"); | |
4883 // skip untaken quoted string | |
4884 int qchar = *_ptr; | |
4885 while (true) { | |
4886 ++_ptr; | |
4887 if (*_ptr == qchar) { ++_ptr; break; } | |
4888 if (*_ptr == '\\') ++_ptr; | |
4889 if (*_ptr == '\n' || *_ptr == '\0') { | |
4890 parse_err(SYNERR, "newline in string"); | |
4891 break; | |
4892 } | |
4893 } | |
4894 next = _ptr + 1; | |
4895 } | |
4896 else { ++_ptr; ++next; } | |
4897 } | |
4898 if( _curline != NULL ) // at end of file _curchar isn't valid | |
4899 _curchar = *_ptr; // reset _curchar to maintain invariant | |
4900 } | |
4901 | |
4902 //---------------------------cur_char----------------------------------------- | |
4903 char ADLParser::cur_char() { | |
4904 return (_curchar); | |
4905 } | |
4906 | |
4907 //---------------------------next_char----------------------------------------- | |
4908 void ADLParser::next_char() { | |
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4909 if (_curchar == '\n') parse_err(WARN, "must call next_line!"); |
0 | 4910 _curchar = *++_ptr; |
4911 // if ( _curchar == '\n' ) { | |
4912 // next_line(); | |
4913 // } | |
4914 } | |
4915 | |
4916 //---------------------------next_char_or_line--------------------------------- | |
4917 void ADLParser::next_char_or_line() { | |
4918 if ( _curchar != '\n' ) { | |
4919 _curchar = *++_ptr; | |
4920 } else { | |
4921 next_line(); | |
4922 _ptr = _curline; | |
4923 _curchar = *_ptr; // maintain invariant | |
4924 } | |
4925 } | |
4926 | |
4927 //---------------------------next_line----------------------------------------- | |
4928 void ADLParser::next_line() { | |
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4929 _curline = _buf.get_line(); |
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4930 _curchar = ' '; |
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4931 } |
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4932 |
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4933 //------------------------get_line_string-------------------------------------- |
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4934 // Prepended location descriptor, for debugging. |
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4935 // Must return a malloced string (that can be freed if desired). |
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4936 char* ADLParser::get_line_string(int linenum) { |
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4937 const char* file = _AD._ADL_file._name; |
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4938 int line = linenum ? linenum : this->linenum(); |
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4939 char* location = (char *)malloc(strlen(file) + 100); |
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4940 sprintf(location, "\n#line %d \"%s\"\n", line, file); |
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4941 return location; |
0 | 4942 } |
4943 | |
4944 //-------------------------is_literal_constant--------------------------------- | |
4945 bool ADLParser::is_literal_constant(const char *param) { | |
4946 if (param[0] == 0) return false; // null string | |
4947 if (param[0] == '(') return true; // parenthesized expression | |
4948 if (param[0] == '0' && (param[1] == 'x' || param[1] == 'X')) { | |
4949 // Make sure it's a hex constant. | |
4950 int i = 2; | |
4951 do { | |
4952 if( !ADLParser::is_hex_digit(*(param+i)) ) return false; | |
4953 ++i; | |
4954 } while( *(param+i) != 0 ); | |
4955 return true; | |
4956 } | |
4957 return false; | |
4958 } | |
4959 | |
4960 //---------------------------is_hex_digit-------------------------------------- | |
4961 bool ADLParser::is_hex_digit(char digit) { | |
4962 return ((digit >= '0') && (digit <= '9')) | |
4963 ||((digit >= 'a') && (digit <= 'f')) | |
4964 ||((digit >= 'A') && (digit <= 'F')); | |
4965 } | |
4966 | |
4967 //---------------------------is_int_token-------------------------------------- | |
4968 bool ADLParser::is_int_token(const char* token, int& intval) { | |
4969 const char* cp = token; | |
4970 while (*cp != '\0' && *cp <= ' ') cp++; | |
4971 if (*cp == '-') cp++; | |
4972 int ndigit = 0; | |
4973 while (*cp >= '0' && *cp <= '9') { cp++; ndigit++; } | |
4974 while (*cp != '\0' && *cp <= ' ') cp++; | |
4975 if (ndigit == 0 || *cp != '\0') { | |
4976 return false; | |
4977 } | |
4978 intval = atoi(token); | |
4979 return true; | |
4980 } | |
4981 | |
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4982 static const char* skip_expr_ws(const char* str) { |
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4983 const char * cp = str; |
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4984 while (cp[0]) { |
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4985 if (cp[0] <= ' ') { |
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4986 ++cp; |
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4987 } else if (cp[0] == '#') { |
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4988 ++cp; |
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4989 while (cp[0] == ' ') ++cp; |
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4990 assert(0 == strncmp(cp, "line", 4), "must be a #line directive"); |
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4991 const char* eol = strchr(cp, '\n'); |
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4992 assert(eol != NULL, "must find end of line"); |
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4993 if (eol == NULL) eol = cp + strlen(cp); |
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4994 cp = eol; |
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4995 } else { |
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4996 break; |
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4997 } |
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4998 } |
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4999 return cp; |
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5000 } |
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5001 |
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5002 //-----------------------equivalent_expressions-------------------------------- |
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5003 bool ADLParser::equivalent_expressions(const char* str1, const char* str2) { |
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5004 if (str1 == str2) |
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5005 return true; |
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5006 else if (str1 == NULL || str2 == NULL) |
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5007 return false; |
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5008 const char* cp1 = str1; |
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5009 const char* cp2 = str2; |
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5010 char in_quote = '\0'; |
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5011 while (cp1[0] && cp2[0]) { |
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5012 if (!in_quote) { |
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5013 // skip spaces and/or cpp directives |
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5014 const char* cp1a = skip_expr_ws(cp1); |
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5015 const char* cp2a = skip_expr_ws(cp2); |
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5016 if (cp1a > cp1 && cp2a > cp2) { |
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5017 cp1 = cp1a; cp2 = cp2a; |
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5018 continue; |
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5019 } |
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5020 if (cp1a > cp1 || cp2a > cp2) break; // fail |
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5021 } |
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5022 // match one non-space char |
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5023 if (cp1[0] != cp2[0]) break; // fail |
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5024 char ch = cp1[0]; |
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5025 cp1++; cp2++; |
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|
5026 // watch for quotes |
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|
5027 if (in_quote && ch == '\\') { |
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5028 if (cp1[0] != cp2[0]) break; // fail |
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415
diff
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|
5029 if (!cp1[0]) break; |
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diff
changeset
|
5030 cp1++; cp2++; |
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|
5031 } |
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|
5032 if (in_quote && ch == in_quote) { |
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diff
changeset
|
5033 in_quote = '\0'; |
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|
5034 } else if (!in_quote && (ch == '"' || ch == '\'')) { |
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diff
changeset
|
5035 in_quote = ch; |
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|
5036 } |
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|
5037 } |
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|
5038 return (!cp1[0] && !cp2[0]); |
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diff
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|
5039 } |
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diff
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|
5040 |
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|
5041 |
0 | 5042 //-------------------------------trim------------------------------------------ |
5043 void ADLParser::trim(char* &token) { | |
5044 while (*token <= ' ') token++; | |
5045 char* end = token + strlen(token); | |
5046 while (end > token && *(end-1) <= ' ') --end; | |
5047 *end = '\0'; | |
5048 } |