Mercurial > hg > truffle
annotate src/share/vm/adlc/adlparse.cpp @ 628:7bb995fbd3c0
Merge
| author | trims |
|---|---|
| date | Thu, 12 Mar 2009 18:16:36 -0700 |
| parents | 0fbdb4381b99 98cb887364d3 |
| children | c18cbe5936b8 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 // 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 } | |
| 98 if (!strcmp(ident, "instruct")) instr_parse(); | |
| 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::_ins_pc_relative] == NULL) { | |
| 130 parse_err(SEMERR, "Did not declare 'ins_pc_relative' attribute"); | |
| 131 } | |
| 132 if (_globalNames[AttributeForm::_op_cost] == NULL) { | |
| 133 parse_err(SEMERR, "Did not declare 'op_cost' attribute"); | |
| 134 } | |
| 135 } | |
| 136 | |
| 137 // ******************** Private Level 1 Parse Functions ******************** | |
| 138 //------------------------------instr_parse------------------------------------ | |
| 139 // Parse the contents of an instruction definition, build the InstructForm to | |
| 140 // represent that instruction, and add it to the InstructForm list. | |
| 141 void ADLParser::instr_parse(void) { | |
| 142 char *ident; | |
| 143 InstructForm *instr; | |
| 144 MatchRule *rule; | |
| 145 int match_rules_cnt = 0; | |
| 146 | |
| 147 // First get the name of the instruction | |
| 148 if( (ident = get_unique_ident(_globalNames,"instruction")) == NULL ) | |
| 149 return; | |
| 150 instr = new InstructForm(ident); // Create new instruction form | |
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151 instr->_linenum = linenum(); |
| 0 | 152 _globalNames.Insert(ident, instr); // Add name to the name table |
| 153 // Debugging Stuff | |
| 154 if (_AD._adl_debug > 1) | |
| 155 fprintf(stderr,"Parsing Instruction Form %s\n", ident); | |
| 156 | |
| 157 // Then get the operands | |
| 158 skipws(); | |
| 159 if (_curchar != '(') { | |
| 160 parse_err(SYNERR, "missing '(' in instruct definition\n"); | |
| 161 } | |
| 162 // Parse the operand list | |
| 163 else get_oplist(instr->_parameters, instr->_localNames); | |
| 164 skipws(); // Skip leading whitespace | |
| 165 // Check for block delimiter | |
| 166 if ( (_curchar != '%') | |
| 167 || ( next_char(), (_curchar != '{')) ) { | |
| 168 parse_err(SYNERR, "missing '%{' in instruction definition\n"); | |
| 169 return; | |
| 170 } | |
| 171 next_char(); // Maintain the invariant | |
| 172 do { | |
| 173 ident = get_ident(); // Grab next identifier | |
| 174 if (ident == NULL) { | |
| 175 parse_err(SYNERR, "keyword identifier expected at %c\n", _curchar); | |
| 176 continue; | |
| 177 } | |
| 178 if (!strcmp(ident, "predicate")) instr->_predicate = pred_parse(); | |
| 179 else if (!strcmp(ident, "match")) { | |
| 180 // Allow one instruction have several match rules. | |
| 181 rule = instr->_matrule; | |
| 182 if (rule == NULL) { | |
| 183 // This is first match rule encountered | |
| 184 rule = match_parse(instr->_localNames); | |
| 185 if (rule) { | |
| 186 instr->_matrule = rule; | |
| 187 // Special case the treatment of Control instructions. | |
| 188 if( instr->is_ideal_control() ) { | |
| 189 // Control instructions return a special result, 'Universe' | |
| 190 rule->_result = "Universe"; | |
| 191 } | |
| 192 // Check for commutative operations with tree operands. | |
| 193 matchrule_clone_and_swap(rule, instr->_ident, match_rules_cnt); | |
| 194 } | |
| 195 } else { | |
| 196 // Find the end of the match rule list | |
| 197 while (rule->_next != NULL) | |
| 198 rule = rule->_next; | |
| 199 // Add the new match rule to the list | |
| 200 rule->_next = match_parse(instr->_localNames); | |
| 201 if (rule->_next) { | |
| 202 rule = rule->_next; | |
| 203 if( instr->is_ideal_control() ) { | |
| 204 parse_err(SYNERR, "unique match rule expected for %s\n", rule->_name); | |
| 205 return; | |
| 206 } | |
| 207 assert(match_rules_cnt < 100," too many match rule clones"); | |
| 208 char* buf = (char*) malloc(strlen(instr->_ident) + 4); | |
| 209 sprintf(buf, "%s_%d", instr->_ident, match_rules_cnt++); | |
| 210 rule->_result = buf; | |
| 211 // Check for commutative operations with tree operands. | |
| 212 matchrule_clone_and_swap(rule, instr->_ident, match_rules_cnt); | |
| 213 } | |
| 214 } | |
| 215 } | |
| 216 else if (!strcmp(ident, "encode")) { | |
| 217 parse_err(SYNERR, "Instructions specify ins_encode, not encode\n"); | |
| 218 } | |
| 219 else if (!strcmp(ident, "ins_encode")) | |
| 220 instr->_insencode = ins_encode_parse(*instr); | |
| 221 else if (!strcmp(ident, "opcode")) instr->_opcode = opcode_parse(instr); | |
| 222 else if (!strcmp(ident, "size")) instr->_size = size_parse(instr); | |
| 223 else if (!strcmp(ident, "effect")) effect_parse(instr); | |
| 224 else if (!strcmp(ident, "expand")) instr->_exprule = expand_parse(instr); | |
| 225 else if (!strcmp(ident, "rewrite")) instr->_rewrule = rewrite_parse(); | |
| 226 else if (!strcmp(ident, "constraint")) { | |
| 227 parse_err(SYNERR, "Instructions do not specify a constraint\n"); | |
| 228 } | |
| 229 else if (!strcmp(ident, "construct")) { | |
| 230 parse_err(SYNERR, "Instructions do not specify a construct\n"); | |
| 231 } | |
| 232 else if (!strcmp(ident, "format")) instr->_format = format_parse(); | |
| 233 else if (!strcmp(ident, "interface")) { | |
| 234 parse_err(SYNERR, "Instructions do not specify an interface\n"); | |
| 235 } | |
| 236 else if (!strcmp(ident, "ins_pipe")) ins_pipe_parse(*instr); | |
| 237 else { // Done with staticly defined parts of instruction definition | |
| 238 // Check identifier to see if it is the name of an attribute | |
| 239 const Form *form = _globalNames[ident]; | |
| 240 AttributeForm *attr = form ? form->is_attribute() : NULL; | |
| 241 if( attr && (attr->_atype == INS_ATTR) ) { | |
| 242 // Insert the new attribute into the linked list. | |
| 243 Attribute *temp = attr_parse(ident); | |
| 244 temp->_next = instr->_attribs; | |
| 245 instr->_attribs = temp; | |
| 246 } else { | |
| 247 parse_err(SYNERR, "expected one of:\n predicate, match, encode, or the name of an instruction attribute at %s\n", ident); | |
| 248 } | |
| 249 } | |
| 250 skipws(); | |
| 251 } while(_curchar != '%'); | |
| 252 next_char(); | |
| 253 if (_curchar != '}') { | |
| 254 parse_err(SYNERR, "missing '%}' in instruction definition\n"); | |
| 255 return; | |
| 256 } | |
| 257 // Check for "Set" form of chain rule | |
| 258 adjust_set_rule(instr); | |
| 259 if (_AD._pipeline ) { | |
| 260 if( instr->expands() ) { | |
| 261 if( instr->_ins_pipe ) | |
| 262 parse_err(WARN, "ins_pipe and expand rule both specified for instruction \"%s\"; ins_pipe will be unused\n", instr->_ident); | |
| 263 } else { | |
| 264 if( !instr->_ins_pipe ) | |
| 265 parse_err(WARN, "No ins_pipe specified for instruction \"%s\"\n", instr->_ident); | |
| 266 } | |
| 267 } | |
| 268 // Add instruction to tail of instruction list | |
| 269 _AD.addForm(instr); | |
| 270 | |
| 271 // Create instruction form for each additional match rule | |
| 272 rule = instr->_matrule; | |
| 273 if (rule != NULL) { | |
| 274 rule = rule->_next; | |
| 275 while (rule != NULL) { | |
| 276 ident = (char*)rule->_result; | |
| 277 InstructForm *clone = new InstructForm(ident, instr, rule); // Create new instruction form | |
| 278 _globalNames.Insert(ident, clone); // Add name to the name table | |
| 279 // Debugging Stuff | |
| 280 if (_AD._adl_debug > 1) | |
| 281 fprintf(stderr,"Parsing Instruction Form %s\n", ident); | |
| 282 // Check for "Set" form of chain rule | |
| 283 adjust_set_rule(clone); | |
| 284 // Add instruction to tail of instruction list | |
| 285 _AD.addForm(clone); | |
| 286 rule = rule->_next; | |
| 287 clone->_matrule->_next = NULL; // One match rule per clone | |
| 288 } | |
| 289 } | |
| 290 } | |
| 291 | |
| 292 //------------------------------matchrule_clone_and_swap----------------------- | |
| 293 // Check for commutative operations with subtree operands, | |
| 294 // create clones and swap operands. | |
| 295 void ADLParser::matchrule_clone_and_swap(MatchRule* rule, const char* instr_ident, int& match_rules_cnt) { | |
| 296 // Check for commutative operations with tree operands. | |
| 297 int count = 0; | |
| 298 rule->count_commutative_op(count); | |
| 299 if (count > 0) { | |
| 300 // Clone match rule and swap commutative operation's operands. | |
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301 rule->matchrule_swap_commutative_op(instr_ident, count, match_rules_cnt); |
| 0 | 302 } |
| 303 } | |
| 304 | |
| 305 //------------------------------adjust_set_rule-------------------------------- | |
| 306 // Check for "Set" form of chain rule | |
| 307 void ADLParser::adjust_set_rule(InstructForm *instr) { | |
| 308 if (instr->_matrule == NULL || instr->_matrule->_rChild == NULL) return; | |
| 309 const char *rch = instr->_matrule->_rChild->_opType; | |
| 310 const Form *frm = _globalNames[rch]; | |
| 311 if( (! strcmp(instr->_matrule->_opType,"Set")) && | |
| 312 frm && frm->is_operand() && (! frm->ideal_only()) ) { | |
| 313 // Previous implementation, which missed leaP*, but worked for loadCon* | |
| 314 unsigned position = 0; | |
| 315 const char *result = NULL; | |
| 316 const char *name = NULL; | |
| 317 const char *optype = NULL; | |
| 318 MatchNode *right = instr->_matrule->_rChild; | |
| 319 if (right->base_operand(position, _globalNames, result, name, optype)) { | |
| 320 position = 1; | |
| 321 const char *result2 = NULL; | |
| 322 const char *name2 = NULL; | |
| 323 const char *optype2 = NULL; | |
| 324 // Can not have additional base operands in right side of match! | |
| 325 if ( ! right->base_operand( position, _globalNames, result2, name2, optype2) ) { | |
| 326 assert( instr->_predicate == NULL, "ADLC does not support instruction chain rules with predicates"); | |
| 327 // Chain from input _ideal_operand_type_, | |
| 328 // Needed for shared roots of match-trees | |
| 329 ChainList *lst = (ChainList *)_AD._chainRules[optype]; | |
| 330 if (lst == NULL) { | |
| 331 lst = new ChainList(); | |
| 332 _AD._chainRules.Insert(optype, lst); | |
| 333 } | |
| 334 if (!lst->search(instr->_matrule->_lChild->_opType)) { | |
| 335 const char *cost = instr->cost(); | |
| 336 if (cost == NULL) { | |
| 337 cost = ((AttributeForm*)_globalNames[AttributeForm::_ins_cost])->_attrdef; | |
| 338 } | |
| 339 // The ADLC does not support chaining from the ideal operand type | |
| 340 // of a predicated user-defined operand | |
| 341 if( frm->is_operand() == NULL || frm->is_operand()->_predicate == NULL ) { | |
| 342 lst->insert(instr->_matrule->_lChild->_opType,cost,instr->_ident); | |
| 343 } | |
| 344 } | |
| 345 // Chain from input _user_defined_operand_type_, | |
| 346 lst = (ChainList *)_AD._chainRules[result]; | |
| 347 if (lst == NULL) { | |
| 348 lst = new ChainList(); | |
| 349 _AD._chainRules.Insert(result, lst); | |
| 350 } | |
| 351 if (!lst->search(instr->_matrule->_lChild->_opType)) { | |
| 352 const char *cost = instr->cost(); | |
| 353 if (cost == NULL) { | |
| 354 cost = ((AttributeForm*)_globalNames[AttributeForm::_ins_cost])->_attrdef; | |
| 355 } | |
| 356 // It is safe to chain from the top-level user-defined operand even | |
| 357 // if it has a predicate, since the predicate is checked before | |
| 358 // the user-defined type is available. | |
| 359 lst->insert(instr->_matrule->_lChild->_opType,cost,instr->_ident); | |
| 360 } | |
| 361 } else { | |
| 362 // May have instruction chain rule if root of right-tree is an ideal | |
| 363 OperandForm *rightOp = _globalNames[right->_opType]->is_operand(); | |
| 364 if( rightOp ) { | |
| 365 const Form *rightRoot = _globalNames[rightOp->_matrule->_opType]; | |
| 366 if( rightRoot && rightRoot->ideal_only() ) { | |
| 367 const char *chain_op = NULL; | |
| 368 if( rightRoot->is_instruction() ) | |
| 369 chain_op = rightOp->_ident; | |
| 370 if( chain_op ) { | |
| 371 // Look-up the operation in chain rule table | |
| 372 ChainList *lst = (ChainList *)_AD._chainRules[chain_op]; | |
| 373 if (lst == NULL) { | |
| 374 lst = new ChainList(); | |
| 375 _AD._chainRules.Insert(chain_op, lst); | |
| 376 } | |
| 377 // if (!lst->search(instr->_matrule->_lChild->_opType)) { | |
| 378 const char *cost = instr->cost(); | |
| 379 if (cost == NULL) { | |
| 380 cost = ((AttributeForm*)_globalNames[AttributeForm::_ins_cost])->_attrdef; | |
| 381 } | |
| 382 // This chains from a top-level operand whose predicate, if any, | |
| 383 // has been checked. | |
| 384 lst->insert(instr->_matrule->_lChild->_opType,cost,instr->_ident); | |
| 385 // } | |
| 386 } | |
| 387 } | |
| 388 } | |
| 389 } // end chain rule from right-tree's ideal root | |
| 390 } | |
| 391 } | |
| 392 } | |
| 393 | |
| 394 | |
| 395 //------------------------------oper_parse------------------------------------- | |
| 396 void ADLParser::oper_parse(void) { | |
| 397 char *ident; | |
| 398 OperandForm *oper; | |
| 399 AttributeForm *attr; | |
| 400 MatchRule *rule; | |
| 401 | |
| 402 // First get the name of the operand | |
| 403 skipws(); | |
| 404 if( (ident = get_unique_ident(_globalNames,"operand")) == NULL ) | |
| 405 return; | |
| 406 oper = new OperandForm(ident); // Create new operand form | |
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407 oper->_linenum = linenum(); |
| 0 | 408 _globalNames.Insert(ident, oper); // Add name to the name table |
| 409 | |
| 410 // Debugging Stuff | |
| 411 if (_AD._adl_debug > 1) fprintf(stderr,"Parsing Operand Form %s\n", ident); | |
| 412 | |
| 413 // Get the component operands | |
| 414 skipws(); | |
| 415 if (_curchar != '(') { | |
| 416 parse_err(SYNERR, "missing '(' in operand definition\n"); | |
| 417 return; | |
| 418 } | |
| 419 else get_oplist(oper->_parameters, oper->_localNames); // Parse the component operand list | |
| 420 skipws(); | |
| 421 // Check for block delimiter | |
| 422 if ((_curchar != '%') || (*(_ptr+1) != '{')) { // If not open block | |
| 423 parse_err(SYNERR, "missing '%c{' in operand definition\n","%"); | |
| 424 return; | |
| 425 } | |
| 426 next_char(); next_char(); // Skip over "%{" symbol | |
| 427 do { | |
| 428 ident = get_ident(); // Grab next identifier | |
| 429 if (ident == NULL) { | |
| 430 parse_err(SYNERR, "keyword identifier expected at %c\n", _curchar); | |
| 431 continue; | |
| 432 } | |
| 433 if (!strcmp(ident, "predicate")) oper->_predicate = pred_parse(); | |
| 434 else if (!strcmp(ident, "match")) { | |
| 435 // Find the end of the match rule list | |
| 436 rule = oper->_matrule; | |
| 437 if (rule) { | |
| 438 while (rule->_next) rule = rule->_next; | |
| 439 // Add the new match rule to the list | |
| 440 rule->_next = match_parse(oper->_localNames); | |
| 441 if (rule->_next) { | |
| 442 rule->_next->_result = oper->_ident; | |
| 443 } | |
| 444 } | |
| 445 else { | |
| 446 // This is first match rule encountered | |
| 447 oper->_matrule = match_parse(oper->_localNames); | |
| 448 if (oper->_matrule) { | |
| 449 oper->_matrule->_result = oper->_ident; | |
| 450 } | |
| 451 } | |
| 452 } | |
| 453 else if (!strcmp(ident, "encode")) oper->_interface = interface_parse(); | |
| 454 else if (!strcmp(ident, "ins_encode")) { | |
| 455 parse_err(SYNERR, "Operands specify 'encode', not 'ins_encode'\n"); | |
| 456 } | |
| 457 else if (!strcmp(ident, "opcode")) { | |
| 458 parse_err(SYNERR, "Operands do not specify an opcode\n"); | |
| 459 } | |
| 460 else if (!strcmp(ident, "effect")) { | |
| 461 parse_err(SYNERR, "Operands do not specify an effect\n"); | |
| 462 } | |
| 463 else if (!strcmp(ident, "expand")) { | |
| 464 parse_err(SYNERR, "Operands do not specify an expand\n"); | |
| 465 } | |
| 466 else if (!strcmp(ident, "rewrite")) { | |
| 467 parse_err(SYNERR, "Operands do not specify a rewrite\n"); | |
| 468 } | |
| 469 else if (!strcmp(ident, "constraint"))oper->_constraint= constraint_parse(); | |
| 470 else if (!strcmp(ident, "construct")) oper->_construct = construct_parse(); | |
| 471 else if (!strcmp(ident, "format")) oper->_format = format_parse(); | |
| 472 else if (!strcmp(ident, "interface")) oper->_interface = interface_parse(); | |
| 473 // Check identifier to see if it is the name of an attribute | |
| 474 else if (((attr = _globalNames[ident]->is_attribute()) != NULL) && | |
| 475 (attr->_atype == OP_ATTR)) oper->_attribs = attr_parse(ident); | |
| 476 else { | |
| 477 parse_err(SYNERR, "expected one of - constraint, predicate, match, encode, format, construct, or the name of a defined operand attribute at %s\n", ident); | |
| 478 } | |
| 479 skipws(); | |
| 480 } while(_curchar != '%'); | |
| 481 next_char(); | |
| 482 if (_curchar != '}') { | |
| 483 parse_err(SYNERR, "missing '%}' in operand definition\n"); | |
| 484 return; | |
| 485 } | |
| 486 // Add operand to tail of operand list | |
| 487 _AD.addForm(oper); | |
| 488 } | |
| 489 | |
| 490 //------------------------------opclass_parse---------------------------------- | |
| 491 // Operand Classes are a block with a comma delimited list of operand names | |
| 492 void ADLParser::opclass_parse(void) { | |
| 493 char *ident; | |
| 494 OpClassForm *opc; | |
| 495 OperandForm *opForm; | |
| 496 | |
| 497 // First get the name of the operand class | |
| 498 skipws(); | |
| 499 if( (ident = get_unique_ident(_globalNames,"opclass")) == NULL ) | |
| 500 return; | |
| 501 opc = new OpClassForm(ident); // Create new operand class form | |
| 502 _globalNames.Insert(ident, opc); // Add name to the name table | |
| 503 | |
| 504 // Debugging Stuff | |
| 505 if (_AD._adl_debug > 1) | |
| 506 fprintf(stderr,"Parsing Operand Class Form %s\n", ident); | |
| 507 | |
| 508 // Get the list of operands | |
| 509 skipws(); | |
| 510 if (_curchar != '(') { | |
| 511 parse_err(SYNERR, "missing '(' in operand definition\n"); | |
| 512 return; | |
| 513 } | |
| 514 do { | |
| 515 next_char(); // Skip past open paren or comma | |
| 516 ident = get_ident(); // Grab next identifier | |
| 517 if (ident == NULL) { | |
| 518 parse_err(SYNERR, "keyword identifier expected at %c\n", _curchar); | |
| 519 continue; | |
| 520 } | |
| 521 // Check identifier to see if it is the name of an operand | |
| 522 const Form *form = _globalNames[ident]; | |
| 523 opForm = form ? form->is_operand() : NULL; | |
| 524 if ( opForm ) { | |
| 525 opc->_oplst.addName(ident); // Add operand to opclass list | |
| 526 opForm->_classes.addName(opc->_ident);// Add opclass to operand list | |
| 527 } | |
| 528 else { | |
| 529 parse_err(SYNERR, "expected name of a defined operand at %s\n", ident); | |
| 530 } | |
| 531 skipws(); // skip trailing whitespace | |
| 532 } while (_curchar == ','); // Check for the comma | |
| 533 // Check for closing ')' | |
| 534 if (_curchar != ')') { | |
| 535 parse_err(SYNERR, "missing ')' or ',' in opclass definition\n"); | |
| 536 return; | |
| 537 } | |
| 538 next_char(); // Consume the ')' | |
| 539 skipws(); | |
| 540 // Check for closing ';' | |
| 541 if (_curchar != ';') { | |
| 542 parse_err(SYNERR, "missing ';' in opclass definition\n"); | |
| 543 return; | |
| 544 } | |
| 545 next_char(); // Consume the ';' | |
| 546 // Add operand to tail of operand list | |
| 547 _AD.addForm(opc); | |
| 548 } | |
| 549 | |
| 550 //------------------------------ins_attr_parse--------------------------------- | |
| 551 void ADLParser::ins_attr_parse(void) { | |
| 552 char *ident; | |
| 553 char *aexpr; | |
| 554 AttributeForm *attrib; | |
| 555 | |
| 556 // get name for the instruction attribute | |
| 557 skipws(); // Skip leading whitespace | |
| 558 if( (ident = get_unique_ident(_globalNames,"inst_attrib")) == NULL ) | |
| 559 return; | |
| 560 // Debugging Stuff | |
| 561 if (_AD._adl_debug > 1) fprintf(stderr,"Parsing Ins_Attribute Form %s\n", ident); | |
| 562 | |
| 563 // Get default value of the instruction attribute | |
| 564 skipws(); // Skip whitespace | |
| 565 if ((aexpr = get_paren_expr("attribute default expression string")) == NULL) { | |
| 566 parse_err(SYNERR, "missing '(' in ins_attrib definition\n"); | |
| 567 return; | |
| 568 } | |
| 569 // Debug Stuff | |
| 570 if (_AD._adl_debug > 1) fprintf(stderr,"Attribute Expression: %s\n", aexpr); | |
| 571 | |
| 572 // Check for terminator | |
| 573 if (_curchar != ';') { | |
| 574 parse_err(SYNERR, "missing ';' in ins_attrib definition\n"); | |
| 575 return; | |
| 576 } | |
| 577 next_char(); // Advance past the ';' | |
| 578 | |
| 579 // Construct the attribute, record global name, and store in ArchDesc | |
| 580 attrib = new AttributeForm(ident, INS_ATTR, aexpr); | |
| 581 _globalNames.Insert(ident, attrib); // Add name to the name table | |
| 582 _AD.addForm(attrib); | |
| 583 } | |
| 584 | |
| 585 //------------------------------op_attr_parse---------------------------------- | |
| 586 void ADLParser::op_attr_parse(void) { | |
| 587 char *ident; | |
| 588 char *aexpr; | |
| 589 AttributeForm *attrib; | |
| 590 | |
| 591 // get name for the operand attribute | |
| 592 skipws(); // Skip leading whitespace | |
| 593 if( (ident = get_unique_ident(_globalNames,"op_attrib")) == NULL ) | |
| 594 return; | |
| 595 // Debugging Stuff | |
| 596 if (_AD._adl_debug > 1) fprintf(stderr,"Parsing Op_Attribute Form %s\n", ident); | |
| 597 | |
| 598 // Get default value of the instruction attribute | |
| 599 skipws(); // Skip whitespace | |
| 600 if ((aexpr = get_paren_expr("attribute default expression string")) == NULL) { | |
| 601 parse_err(SYNERR, "missing '(' in op_attrib definition\n"); | |
| 602 return; | |
| 603 } | |
| 604 // Debug Stuff | |
| 605 if (_AD._adl_debug > 1) fprintf(stderr,"Attribute Expression: %s\n", aexpr); | |
| 606 | |
| 607 // Check for terminator | |
| 608 if (_curchar != ';') { | |
| 609 parse_err(SYNERR, "missing ';' in op_attrib definition\n"); | |
| 610 return; | |
| 611 } | |
| 612 next_char(); // Advance past the ';' | |
| 613 | |
| 614 // Construct the attribute, record global name, and store in ArchDesc | |
| 615 attrib = new AttributeForm(ident, OP_ATTR, aexpr); | |
| 616 _globalNames.Insert(ident, attrib); | |
| 617 _AD.addForm(attrib); | |
| 618 } | |
| 619 | |
| 620 //------------------------------definitions_parse----------------------------------- | |
| 621 void ADLParser::definitions_parse(void) { | |
| 622 skipws(); // Skip leading whitespace | |
| 623 if (_curchar == '%' && *(_ptr+1) == '{') { | |
| 624 next_char(); next_char(); // Skip "%{" | |
| 625 skipws(); | |
| 626 while (_curchar != '%' && *(_ptr+1) != '}') { | |
| 627 // Process each definition until finding closing string "%}" | |
| 628 char *token = get_ident(); | |
| 629 if (token == NULL) { | |
| 630 parse_err(SYNERR, "missing identifier inside definitions block.\n"); | |
| 631 return; | |
| 632 } | |
| 633 if (strcmp(token,"int_def")==0) { int_def_parse(); } | |
| 634 // if (strcmp(token,"str_def")==0) { str_def_parse(); } | |
| 635 skipws(); | |
| 636 } | |
| 637 } | |
| 638 else { | |
| 639 parse_err(SYNERR, "Missing %%{ ... %%} block after definitions keyword.\n"); | |
| 640 return; | |
| 641 } | |
| 642 } | |
| 643 | |
| 644 //------------------------------int_def_parse---------------------------------- | |
| 645 // Parse Example: | |
| 646 // int_def MEMORY_REF_COST ( 200, DEFAULT_COST * 2); | |
| 647 // <keyword> <name> ( <int_value>, <description> ); | |
| 648 // | |
| 649 void ADLParser::int_def_parse(void) { | |
| 650 char *name = NULL; // Name of definition | |
| 651 char *value = NULL; // its value, | |
| 652 int int_value = -1; // positive values only | |
| 653 char *description = NULL; // textual description | |
| 654 | |
| 655 // Get definition name | |
| 656 skipws(); // Skip whitespace | |
| 657 name = get_ident(); | |
| 658 if (name == NULL) { | |
| 659 parse_err(SYNERR, "missing definition name after int_def\n"); | |
| 660 return; | |
| 661 } | |
| 662 | |
| 663 // Check for value of int_def dname( integer_value [, string_expression ] ) | |
| 664 skipws(); | |
| 665 if (_curchar == '(') { | |
| 666 | |
| 667 // Parse the integer value. | |
| 668 next_char(); | |
| 669 value = get_ident(); | |
| 670 if (value == NULL) { | |
| 671 parse_err(SYNERR, "missing value in int_def\n"); | |
| 672 return; | |
| 673 } | |
| 674 if( !is_int_token(value, int_value) ) { | |
| 675 parse_err(SYNERR, "value in int_def is not recognized as integer\n"); | |
| 676 return; | |
| 677 } | |
| 678 skipws(); | |
| 679 | |
| 680 // Check for description | |
| 681 if (_curchar == ',') { | |
| 682 next_char(); // skip ',' | |
| 683 | |
| 684 description = get_expr("int_def description", ")"); | |
| 685 if (description == NULL) { | |
| 686 parse_err(SYNERR, "invalid or missing description in int_def\n"); | |
| 687 return; | |
| 688 } | |
| 689 trim(description); | |
| 690 } | |
| 691 | |
| 692 if (_curchar != ')') { | |
| 693 parse_err(SYNERR, "missing ')' in register definition statement\n"); | |
| 694 return; | |
| 695 } | |
| 696 next_char(); | |
| 697 } | |
| 698 | |
| 699 // Check for closing ';' | |
| 700 skipws(); | |
| 701 if (_curchar != ';') { | |
| 702 parse_err(SYNERR, "missing ';' after int_def\n"); | |
| 703 return; | |
| 704 } | |
| 705 next_char(); // move past ';' | |
| 706 | |
| 707 // Debug Stuff | |
| 708 if (_AD._adl_debug > 1) { | |
| 709 fprintf(stderr,"int_def: %s ( %s, %s )\n", name, | |
| 710 (value), (description ? description : "")); | |
| 711 } | |
| 712 | |
| 713 // Record new definition. | |
| 714 Expr *expr = new Expr(name, description, int_value, int_value); | |
| 715 const Expr *old_expr = _AD.globalDefs().define(name, expr); | |
| 716 if (old_expr != NULL) { | |
| 717 parse_err(SYNERR, "Duplicate definition\n"); | |
| 718 return; | |
| 719 } | |
| 720 | |
| 721 return; | |
| 722 } | |
| 723 | |
| 724 | |
| 725 //------------------------------source_parse----------------------------------- | |
| 726 void ADLParser::source_parse(void) { | |
| 727 SourceForm *source; // Encode class for instruction/operand | |
| 728 char *rule = NULL; // String representation of encode rule | |
| 729 | |
| 730 skipws(); // Skip leading whitespace | |
| 731 if ( (rule = find_cpp_block("source block")) == NULL ) { | |
| 732 parse_err(SYNERR, "incorrect or missing block for 'source'.\n"); | |
| 733 return; | |
| 734 } | |
| 735 // Debug Stuff | |
| 736 if (_AD._adl_debug > 1) fprintf(stderr,"Source Form: %s\n", rule); | |
| 737 | |
| 738 source = new SourceForm(rule); // Build new Source object | |
| 739 _AD.addForm(source); | |
| 740 // skipws(); | |
| 741 } | |
| 742 | |
| 743 //------------------------------source_hpp_parse------------------------------- | |
| 744 // Parse a source_hpp %{ ... %} block. | |
| 745 // The code gets stuck into the ad_<arch>.hpp file. | |
| 746 // If the source_hpp block appears before the register block in the AD | |
| 747 // file, it goes up at the very top of the ad_<arch>.hpp file, so that | |
| 748 // it can be used by register encodings, etc. Otherwise, it goes towards | |
| 749 // the bottom, where it's useful as a global definition to *.cpp files. | |
| 750 void ADLParser::source_hpp_parse(void) { | |
| 751 char *rule = NULL; // String representation of encode rule | |
| 752 | |
| 753 skipws(); // Skip leading whitespace | |
| 754 if ( (rule = find_cpp_block("source_hpp block")) == NULL ) { | |
| 755 parse_err(SYNERR, "incorrect or missing block for 'source_hpp'.\n"); | |
| 756 return; | |
| 757 } | |
| 758 // Debug Stuff | |
| 759 if (_AD._adl_debug > 1) fprintf(stderr,"Header Form: %s\n", rule); | |
| 760 | |
| 761 if (_AD.get_registers() == NULL) { | |
| 762 // Very early in the file, before reg_defs, we collect pre-headers. | |
| 763 PreHeaderForm* pre_header = new PreHeaderForm(rule); | |
| 764 _AD.addForm(pre_header); | |
| 765 } else { | |
| 766 // Normally, we collect header info, placed at the bottom of the hpp file. | |
| 767 HeaderForm* header = new HeaderForm(rule); | |
| 768 _AD.addForm(header); | |
| 769 } | |
| 770 } | |
| 771 | |
| 772 //------------------------------reg_parse-------------------------------------- | |
| 773 void ADLParser::reg_parse(void) { | |
| 774 | |
| 775 // Create the RegisterForm for the architecture description. | |
| 776 RegisterForm *regBlock = new RegisterForm(); // Build new Source object | |
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777 regBlock->_linenum = linenum(); |
| 0 | 778 _AD.addForm(regBlock); |
| 779 | |
| 780 skipws(); // Skip leading whitespace | |
| 781 if (_curchar == '%' && *(_ptr+1) == '{') { | |
| 782 next_char(); next_char(); // Skip "%{" | |
| 783 skipws(); | |
| 784 while (_curchar != '%' && *(_ptr+1) != '}') { | |
| 785 char *token = get_ident(); | |
| 786 if (token == NULL) { | |
| 787 parse_err(SYNERR, "missing identifier inside register block.\n"); | |
| 788 return; | |
| 789 } | |
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790 if (strcmp(token,"reg_def")==0) { reg_def_parse(); } |
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791 else if (strcmp(token,"reg_class")==0) { reg_class_parse(); } |
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792 else if (strcmp(token,"alloc_class")==0) { alloc_class_parse(); } |
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793 else if (strcmp(token,"#define")==0) { preproc_define(); } |
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794 else { parse_err(SYNERR, "bad token %s inside register block.\n", token); break; } |
| 0 | 795 skipws(); |
| 796 } | |
| 797 } | |
| 798 else { | |
| 799 parse_err(SYNERR, "Missing %c{ ... %c} block after register keyword.\n",'%','%'); | |
| 800 return; | |
| 801 } | |
| 802 | |
| 803 // Add reg_class spill_regs | |
| 804 regBlock->addSpillRegClass(); | |
| 805 } | |
| 806 | |
| 807 //------------------------------encode_parse----------------------------------- | |
| 808 void ADLParser::encode_parse(void) { | |
| 809 EncodeForm *encBlock; // Information about instruction/operand encoding | |
| 810 char *desc = NULL; // String representation of encode rule | |
| 811 | |
| 812 _AD.getForm(&encBlock); | |
| 813 if ( encBlock == NULL) { | |
| 814 // Create the EncodeForm for the architecture description. | |
| 815 encBlock = new EncodeForm(); // Build new Source object | |
| 816 _AD.addForm(encBlock); | |
| 817 } | |
| 818 | |
| 819 skipws(); // Skip leading whitespace | |
| 820 if (_curchar == '%' && *(_ptr+1) == '{') { | |
| 821 next_char(); next_char(); // Skip "%{" | |
| 822 skipws(); | |
| 823 while (_curchar != '%' && *(_ptr+1) != '}') { | |
| 824 char *token = get_ident(); | |
| 825 if (token == NULL) { | |
| 826 parse_err(SYNERR, "missing identifier inside encoding block.\n"); | |
| 827 return; | |
| 828 } | |
| 829 if (strcmp(token,"enc_class")==0) { enc_class_parse(); } | |
| 830 skipws(); | |
| 831 } | |
| 832 } | |
| 833 else { | |
| 834 parse_err(SYNERR, "Missing %c{ ... %c} block after encode keyword.\n",'%','%'); | |
| 835 return; | |
| 836 } | |
| 837 } | |
| 838 | |
| 839 //------------------------------enc_class_parse-------------------------------- | |
| 840 void ADLParser::enc_class_parse(void) { | |
| 841 char *ec_name; // Name of encoding class being defined | |
| 842 | |
| 843 // Get encoding class name | |
| 844 skipws(); // Skip whitespace | |
| 845 ec_name = get_ident(); | |
| 846 if (ec_name == NULL) { | |
| 847 parse_err(SYNERR, "missing encoding class name after encode.\n"); | |
| 848 return; | |
| 849 } | |
| 850 | |
| 851 EncClass *encoding = _AD._encode->add_EncClass(ec_name); | |
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852 encoding->_linenum = linenum(); |
| 0 | 853 |
| 854 skipws(); // Skip leading whitespace | |
| 855 // Check for optional parameter list | |
| 856 if (_curchar == '(') { | |
| 857 do { | |
| 858 char *pType = NULL; // parameter type | |
| 859 char *pName = NULL; // parameter name | |
| 860 | |
| 861 next_char(); // skip open paren & comma characters | |
| 862 skipws(); | |
| 863 if (_curchar == ')') break; | |
| 864 | |
| 865 // Get parameter type | |
| 866 pType = get_ident(); | |
| 867 if (pType == NULL) { | |
| 868 parse_err(SYNERR, "parameter type expected at %c\n", _curchar); | |
| 869 return; | |
| 870 } | |
| 871 | |
| 872 skipws(); | |
| 873 // Get parameter name | |
| 874 pName = get_ident(); | |
| 875 if (pName == NULL) { | |
| 876 parse_err(SYNERR, "parameter name expected at %c\n", _curchar); | |
| 877 return; | |
| 878 } | |
| 879 | |
| 880 // Record parameter type and name | |
| 881 encoding->add_parameter( pType, pName ); | |
| 882 | |
| 883 skipws(); | |
| 884 } while(_curchar == ','); | |
| 885 | |
| 886 if (_curchar != ')') parse_err(SYNERR, "missing ')'\n"); | |
| 887 else { | |
| 888 next_char(); // Skip ')' | |
| 889 } | |
| 890 } // Done with parameter list | |
| 891 | |
| 892 skipws(); | |
| 893 // Check for block starting delimiters | |
| 894 if ((_curchar != '%') || (*(_ptr+1) != '{')) { // If not open block | |
| 895 parse_err(SYNERR, "missing '%c{' in enc_class definition\n", '%'); | |
| 896 return; | |
| 897 } | |
| 898 next_char(); // Skip '%' | |
| 899 next_char(); // Skip '{' | |
| 900 | |
| 901 enc_class_parse_block(encoding, ec_name); | |
| 902 } | |
| 903 | |
| 904 | |
| 905 void ADLParser::enc_class_parse_block(EncClass* encoding, char* ec_name) { | |
| 906 skipws_no_preproc(); // Skip leading whitespace | |
| 907 // Prepend location descriptor, for debugging; cf. ADLParser::find_cpp_block | |
| 908 if (_AD._adlocation_debug) { | |
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909 encoding->add_code(get_line_string()); |
| 0 | 910 } |
| 911 | |
| 912 // Collect the parts of the encode description | |
| 913 // (1) strings that are passed through to output | |
| 914 // (2) replacement/substitution variable, preceeded by a '$' | |
| 915 while ( (_curchar != '%') && (*(_ptr+1) != '}') ) { | |
| 916 | |
| 917 // (1) | |
| 918 // Check if there is a string to pass through to output | |
| 919 char *start = _ptr; // Record start of the next string | |
| 920 while ((_curchar != '$') && ((_curchar != '%') || (*(_ptr+1) != '}')) ) { | |
| 921 // If at the start of a comment, skip past it | |
| 922 if( (_curchar == '/') && ((*(_ptr+1) == '/') || (*(_ptr+1) == '*')) ) { | |
| 923 skipws_no_preproc(); | |
| 924 } else { | |
| 925 // ELSE advance to the next character, or start of the next line | |
| 926 next_char_or_line(); | |
| 927 } | |
| 928 } | |
| 929 // If a string was found, terminate it and record in EncClass | |
| 930 if ( start != _ptr ) { | |
| 931 *_ptr = '\0'; // Terminate the string | |
| 932 encoding->add_code(start); | |
| 933 } | |
| 934 | |
| 935 // (2) | |
| 936 // If we are at a replacement variable, | |
| 937 // copy it and record in EncClass | |
| 938 if ( _curchar == '$' ) { | |
| 939 // Found replacement Variable | |
| 940 char *rep_var = get_rep_var_ident_dup(); | |
| 941 // Add flag to _strings list indicating we should check _rep_vars | |
| 942 encoding->add_rep_var(rep_var); | |
| 943 } | |
| 944 } // end while part of format description | |
| 945 next_char(); // Skip '%' | |
| 946 next_char(); // Skip '}' | |
| 947 | |
| 948 skipws(); | |
| 949 | |
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950 if (_AD._adlocation_debug) { |
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951 encoding->add_code(end_line_marker()); |
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952 } |
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953 |
| 0 | 954 // Debug Stuff |
| 955 if (_AD._adl_debug > 1) fprintf(stderr,"EncodingClass Form: %s\n", ec_name); | |
| 956 } | |
| 957 | |
| 958 //------------------------------frame_parse----------------------------------- | |
| 959 void ADLParser::frame_parse(void) { | |
| 960 FrameForm *frame; // Information about stack-frame layout | |
| 961 char *desc = NULL; // String representation of frame | |
| 962 | |
| 963 skipws(); // Skip leading whitespace | |
| 964 | |
| 965 frame = new FrameForm(); // Build new Frame object | |
| 966 // Check for open block sequence | |
| 967 skipws(); // Skip leading whitespace | |
| 968 if (_curchar == '%' && *(_ptr+1) == '{') { | |
| 969 next_char(); next_char(); // Skip "%{" | |
| 970 skipws(); | |
| 971 while (_curchar != '%' && *(_ptr+1) != '}') { | |
| 972 char *token = get_ident(); | |
| 973 if (token == NULL) { | |
| 974 parse_err(SYNERR, "missing identifier inside frame block.\n"); | |
| 975 return; | |
| 976 } | |
| 977 if (strcmp(token,"stack_direction")==0) { | |
| 978 stack_dir_parse(frame); | |
| 979 } | |
| 980 if (strcmp(token,"sync_stack_slots")==0) { | |
| 981 sync_stack_slots_parse(frame); | |
| 982 } | |
| 983 if (strcmp(token,"frame_pointer")==0) { | |
| 984 frame_pointer_parse(frame, false); | |
| 985 } | |
| 986 if (strcmp(token,"interpreter_frame_pointer")==0) { | |
| 987 interpreter_frame_pointer_parse(frame, false); | |
| 988 // Add reg_class interpreter_frame_pointer_reg | |
| 989 if( _AD._register != NULL ) { | |
| 990 RegClass *reg_class = _AD._register->addRegClass("interpreter_frame_pointer_reg"); | |
| 991 char *interpreter_frame_pointer_reg = frame->_interpreter_frame_pointer_reg; | |
| 992 if( interpreter_frame_pointer_reg != NULL ) { | |
| 993 RegDef *regDef = _AD._register->getRegDef(interpreter_frame_pointer_reg); | |
| 994 reg_class->addReg(regDef); // add regDef to regClass | |
| 995 } | |
| 996 } | |
| 997 } | |
| 998 if (strcmp(token,"inline_cache_reg")==0) { | |
| 999 inline_cache_parse(frame, false); | |
| 1000 // Add reg_class inline_cache_reg | |
| 1001 if( _AD._register != NULL ) { | |
| 1002 RegClass *reg_class = _AD._register->addRegClass("inline_cache_reg"); | |
| 1003 char *inline_cache_reg = frame->_inline_cache_reg; | |
| 1004 if( inline_cache_reg != NULL ) { | |
| 1005 RegDef *regDef = _AD._register->getRegDef(inline_cache_reg); | |
| 1006 reg_class->addReg(regDef); // add regDef to regClass | |
| 1007 } | |
| 1008 } | |
| 1009 } | |
| 1010 if (strcmp(token,"compiler_method_oop_reg")==0) { | |
| 1011 parse_err(WARN, "Using obsolete Token, compiler_method_oop_reg"); | |
| 1012 skipws(); | |
| 1013 } | |
| 1014 if (strcmp(token,"interpreter_method_oop_reg")==0) { | |
| 1015 interpreter_method_oop_parse(frame, false); | |
| 1016 // Add reg_class interpreter_method_oop_reg | |
| 1017 if( _AD._register != NULL ) { | |
| 1018 RegClass *reg_class = _AD._register->addRegClass("interpreter_method_oop_reg"); | |
| 1019 char *method_oop_reg = frame->_interpreter_method_oop_reg; | |
| 1020 if( method_oop_reg != NULL ) { | |
| 1021 RegDef *regDef = _AD._register->getRegDef(method_oop_reg); | |
| 1022 reg_class->addReg(regDef); // add regDef to regClass | |
| 1023 } | |
| 1024 } | |
| 1025 } | |
| 1026 if (strcmp(token,"cisc_spilling_operand_name")==0) { | |
| 1027 cisc_spilling_operand_name_parse(frame, false); | |
| 1028 } | |
| 1029 if (strcmp(token,"stack_alignment")==0) { | |
| 1030 stack_alignment_parse(frame); | |
| 1031 } | |
| 1032 if (strcmp(token,"return_addr")==0) { | |
| 1033 return_addr_parse(frame, false); | |
| 1034 } | |
| 1035 if (strcmp(token,"in_preserve_stack_slots")==0) { | |
| 1036 preserve_stack_parse(frame); | |
| 1037 } | |
| 1038 if (strcmp(token,"out_preserve_stack_slots")==0) { | |
| 1039 parse_err(WARN, "Using obsolete token, out_preserve_stack_slots"); | |
| 1040 skipws(); | |
| 1041 } | |
| 1042 if (strcmp(token,"varargs_C_out_slots_killed")==0) { | |
| 1043 frame->_varargs_C_out_slots_killed = parse_one_arg("varargs C out slots killed"); | |
| 1044 } | |
| 1045 if (strcmp(token,"calling_convention")==0) { | |
| 1046 frame->_calling_convention = calling_convention_parse(); | |
| 1047 } | |
| 1048 if (strcmp(token,"return_value")==0) { | |
| 1049 frame->_return_value = return_value_parse(); | |
| 1050 } | |
| 1051 if (strcmp(token,"c_frame_pointer")==0) { | |
| 1052 frame_pointer_parse(frame, true); | |
| 1053 } | |
| 1054 if (strcmp(token,"c_return_addr")==0) { | |
| 1055 return_addr_parse(frame, true); | |
| 1056 } | |
| 1057 if (strcmp(token,"c_calling_convention")==0) { | |
| 1058 frame->_c_calling_convention = calling_convention_parse(); | |
| 1059 } | |
| 1060 if (strcmp(token,"c_return_value")==0) { | |
| 1061 frame->_c_return_value = return_value_parse(); | |
| 1062 } | |
| 1063 | |
| 1064 skipws(); | |
| 1065 } | |
| 1066 } | |
| 1067 else { | |
| 1068 parse_err(SYNERR, "Missing %c{ ... %c} block after encode keyword.\n",'%','%'); | |
| 1069 return; | |
| 1070 } | |
| 1071 // All Java versions are required, native versions are optional | |
| 1072 if(frame->_frame_pointer == NULL) { | |
| 1073 parse_err(SYNERR, "missing frame pointer definition in frame section.\n"); | |
| 1074 return; | |
| 1075 } | |
| 1076 // !!!!! !!!!! | |
| 1077 // if(frame->_interpreter_frame_ptr_reg == NULL) { | |
| 1078 // parse_err(SYNERR, "missing interpreter frame pointer definition in frame section.\n"); | |
| 1079 // return; | |
| 1080 // } | |
| 1081 if(frame->_alignment == NULL) { | |
| 1082 parse_err(SYNERR, "missing alignment definition in frame section.\n"); | |
| 1083 return; | |
| 1084 } | |
| 1085 if(frame->_return_addr == NULL) { | |
| 1086 parse_err(SYNERR, "missing return address location in frame section.\n"); | |
| 1087 return; | |
| 1088 } | |
| 1089 if(frame->_in_preserve_slots == NULL) { | |
| 1090 parse_err(SYNERR, "missing stack slot preservation definition in frame section.\n"); | |
| 1091 return; | |
| 1092 } | |
| 1093 if(frame->_varargs_C_out_slots_killed == NULL) { | |
| 1094 parse_err(SYNERR, "missing varargs C out slots killed definition in frame section.\n"); | |
| 1095 return; | |
| 1096 } | |
| 1097 if(frame->_calling_convention == NULL) { | |
| 1098 parse_err(SYNERR, "missing calling convention definition in frame section.\n"); | |
| 1099 return; | |
| 1100 } | |
| 1101 if(frame->_return_value == NULL) { | |
| 1102 parse_err(SYNERR, "missing return value definition in frame section.\n"); | |
| 1103 return; | |
| 1104 } | |
| 1105 // Fill natives in identically with the Java versions if not present. | |
| 1106 if(frame->_c_frame_pointer == NULL) { | |
| 1107 frame->_c_frame_pointer = frame->_frame_pointer; | |
| 1108 } | |
| 1109 if(frame->_c_return_addr == NULL) { | |
| 1110 frame->_c_return_addr = frame->_return_addr; | |
| 1111 frame->_c_return_addr_loc = frame->_return_addr_loc; | |
| 1112 } | |
| 1113 if(frame->_c_calling_convention == NULL) { | |
| 1114 frame->_c_calling_convention = frame->_calling_convention; | |
| 1115 } | |
| 1116 if(frame->_c_return_value == NULL) { | |
| 1117 frame->_c_return_value = frame->_return_value; | |
| 1118 } | |
| 1119 | |
| 1120 // Debug Stuff | |
| 1121 if (_AD._adl_debug > 1) fprintf(stderr,"Frame Form: %s\n", desc); | |
| 1122 | |
| 1123 // Create the EncodeForm for the architecture description. | |
| 1124 _AD.addForm(frame); | |
| 1125 // skipws(); | |
| 1126 } | |
| 1127 | |
| 1128 //------------------------------stack_dir_parse-------------------------------- | |
| 1129 void ADLParser::stack_dir_parse(FrameForm *frame) { | |
| 1130 char *direction = parse_one_arg("stack direction entry"); | |
| 1131 if (strcmp(direction, "TOWARDS_LOW") == 0) { | |
| 1132 frame->_direction = false; | |
| 1133 } | |
| 1134 else if (strcmp(direction, "TOWARDS_HIGH") == 0) { | |
| 1135 frame->_direction = true; | |
| 1136 } | |
| 1137 else { | |
| 1138 parse_err(SYNERR, "invalid value inside stack direction entry.\n"); | |
| 1139 return; | |
| 1140 } | |
| 1141 } | |
| 1142 | |
| 1143 //------------------------------sync_stack_slots_parse------------------------- | |
| 1144 void ADLParser::sync_stack_slots_parse(FrameForm *frame) { | |
| 1145 // Assign value into frame form | |
| 1146 frame->_sync_stack_slots = parse_one_arg("sync stack slots entry"); | |
| 1147 } | |
| 1148 | |
| 1149 //------------------------------frame_pointer_parse---------------------------- | |
| 1150 void ADLParser::frame_pointer_parse(FrameForm *frame, bool native) { | |
| 1151 char *frame_pointer = parse_one_arg("frame pointer entry"); | |
| 1152 // Assign value into frame form | |
| 1153 if (native) { frame->_c_frame_pointer = frame_pointer; } | |
| 1154 else { frame->_frame_pointer = frame_pointer; } | |
| 1155 } | |
| 1156 | |
| 1157 //------------------------------interpreter_frame_pointer_parse---------------------------- | |
| 1158 void ADLParser::interpreter_frame_pointer_parse(FrameForm *frame, bool native) { | |
| 1159 frame->_interpreter_frame_pointer_reg = parse_one_arg("interpreter frame pointer entry"); | |
| 1160 } | |
| 1161 | |
| 1162 //------------------------------inline_cache_parse----------------------------- | |
| 1163 void ADLParser::inline_cache_parse(FrameForm *frame, bool native) { | |
| 1164 frame->_inline_cache_reg = parse_one_arg("inline cache reg entry"); | |
| 1165 } | |
| 1166 | |
| 1167 //------------------------------interpreter_method_oop_parse------------------ | |
| 1168 void ADLParser::interpreter_method_oop_parse(FrameForm *frame, bool native) { | |
| 1169 frame->_interpreter_method_oop_reg = parse_one_arg("method oop reg entry"); | |
| 1170 } | |
| 1171 | |
| 1172 //------------------------------cisc_spilling_operand_parse--------------------- | |
| 1173 void ADLParser::cisc_spilling_operand_name_parse(FrameForm *frame, bool native) { | |
| 1174 frame->_cisc_spilling_operand_name = parse_one_arg("cisc spilling operand name"); | |
| 1175 } | |
| 1176 | |
| 1177 //------------------------------stack_alignment_parse-------------------------- | |
| 1178 void ADLParser::stack_alignment_parse(FrameForm *frame) { | |
| 1179 char *alignment = parse_one_arg("stack alignment entry"); | |
| 1180 // Assign value into frame | |
| 1181 frame->_alignment = alignment; | |
| 1182 } | |
| 1183 | |
| 1184 //------------------------------parse_one_arg------------------------------- | |
| 1185 char *ADLParser::parse_one_arg(const char *description) { | |
| 1186 char *token = NULL; | |
| 1187 if(_curchar == '(') { | |
| 1188 next_char(); | |
| 1189 skipws(); | |
| 1190 token = get_expr(description, ")"); | |
| 1191 if (token == NULL) { | |
| 1192 parse_err(SYNERR, "missing value inside %s.\n", description); | |
| 1193 return NULL; | |
| 1194 } | |
| 1195 next_char(); // skip the close paren | |
| 1196 if(_curchar != ';') { // check for semi-colon | |
| 1197 parse_err(SYNERR, "missing %c in.\n", ';', description); | |
| 1198 return NULL; | |
| 1199 } | |
| 1200 next_char(); // skip the semi-colon | |
| 1201 } | |
| 1202 else { | |
| 1203 parse_err(SYNERR, "Missing %c in.\n", '(', description); | |
| 1204 return NULL; | |
| 1205 } | |
| 1206 | |
| 1207 trim(token); | |
| 1208 return token; | |
| 1209 } | |
| 1210 | |
| 1211 //------------------------------return_addr_parse------------------------------ | |
| 1212 void ADLParser::return_addr_parse(FrameForm *frame, bool native) { | |
| 1213 bool in_register = true; | |
| 1214 if(_curchar == '(') { | |
| 1215 next_char(); | |
| 1216 skipws(); | |
| 1217 char *token = get_ident(); | |
| 1218 if (token == NULL) { | |
| 1219 parse_err(SYNERR, "missing value inside return address entry.\n"); | |
| 1220 return; | |
| 1221 } | |
| 1222 // check for valid values for stack/register | |
| 1223 if (strcmp(token, "REG") == 0) { | |
| 1224 in_register = true; | |
| 1225 } | |
| 1226 else if (strcmp(token, "STACK") == 0) { | |
| 1227 in_register = false; | |
| 1228 } | |
| 1229 else { | |
| 1230 parse_err(SYNERR, "invalid value inside return_address entry.\n"); | |
| 1231 return; | |
| 1232 } | |
| 1233 if (native) { frame->_c_return_addr_loc = in_register; } | |
| 1234 else { frame->_return_addr_loc = in_register; } | |
| 1235 | |
| 1236 // Parse expression that specifies register or stack position | |
| 1237 skipws(); | |
| 1238 char *token2 = get_expr("return address entry", ")"); | |
| 1239 if (token2 == NULL) { | |
| 1240 parse_err(SYNERR, "missing value inside return address entry.\n"); | |
| 1241 return; | |
| 1242 } | |
| 1243 next_char(); // skip the close paren | |
| 1244 if (native) { frame->_c_return_addr = token2; } | |
| 1245 else { frame->_return_addr = token2; } | |
| 1246 | |
| 1247 if(_curchar != ';') { // check for semi-colon | |
| 1248 parse_err(SYNERR, "missing %c in return address entry.\n", ';'); | |
| 1249 return; | |
| 1250 } | |
| 1251 next_char(); // skip the semi-colon | |
| 1252 } | |
| 1253 else { | |
| 1254 parse_err(SYNERR, "Missing %c in return_address entry.\n", '('); | |
| 1255 } | |
| 1256 } | |
| 1257 | |
| 1258 //------------------------------preserve_stack_parse--------------------------- | |
| 1259 void ADLParser::preserve_stack_parse(FrameForm *frame) { | |
| 1260 if(_curchar == '(') { | |
| 1261 char *token = get_paren_expr("preserve_stack_slots"); | |
| 1262 frame->_in_preserve_slots = token; | |
| 1263 | |
| 1264 if(_curchar != ';') { // check for semi-colon | |
| 1265 parse_err(SYNERR, "missing %c in preserve stack slot entry.\n", ';'); | |
| 1266 return; | |
| 1267 } | |
| 1268 next_char(); // skip the semi-colon | |
| 1269 } | |
| 1270 else { | |
| 1271 parse_err(SYNERR, "Missing %c in preserve stack slot entry.\n", '('); | |
| 1272 } | |
| 1273 } | |
| 1274 | |
| 1275 //------------------------------calling_convention_parse----------------------- | |
| 1276 char *ADLParser::calling_convention_parse() { | |
| 1277 char *desc = NULL; // String representation of calling_convention | |
| 1278 | |
| 1279 skipws(); // Skip leading whitespace | |
| 1280 if ( (desc = find_cpp_block("calling convention block")) == NULL ) { | |
| 1281 parse_err(SYNERR, "incorrect or missing block for 'calling_convention'.\n"); | |
| 1282 } | |
| 1283 return desc; | |
| 1284 } | |
| 1285 | |
| 1286 //------------------------------return_value_parse----------------------------- | |
| 1287 char *ADLParser::return_value_parse() { | |
| 1288 char *desc = NULL; // String representation of calling_convention | |
| 1289 | |
| 1290 skipws(); // Skip leading whitespace | |
| 1291 if ( (desc = find_cpp_block("return value block")) == NULL ) { | |
| 1292 parse_err(SYNERR, "incorrect or missing block for 'return_value'.\n"); | |
| 1293 } | |
| 1294 return desc; | |
| 1295 } | |
| 1296 | |
| 1297 //------------------------------ins_pipe_parse--------------------------------- | |
| 1298 void ADLParser::ins_pipe_parse(InstructForm &instr) { | |
| 1299 char * ident; | |
| 1300 | |
| 1301 skipws(); | |
| 1302 if ( _curchar != '(' ) { // Check for delimiter | |
| 1303 parse_err(SYNERR, "missing \"(\" in ins_pipe definition\n"); | |
| 1304 return; | |
| 1305 } | |
| 1306 | |
| 1307 next_char(); | |
| 1308 ident = get_ident(); // Grab next identifier | |
| 1309 | |
| 1310 if (ident == NULL) { | |
| 1311 parse_err(SYNERR, "keyword identifier expected at %c\n", _curchar); | |
| 1312 return; | |
| 1313 } | |
| 1314 | |
| 1315 skipws(); | |
| 1316 if ( _curchar != ')' ) { // Check for delimiter | |
| 1317 parse_err(SYNERR, "missing \")\" in ins_pipe definition\n"); | |
| 1318 return; | |
| 1319 } | |
| 1320 | |
| 1321 next_char(); // skip the close paren | |
| 1322 if(_curchar != ';') { // check for semi-colon | |
| 1323 parse_err(SYNERR, "missing %c in return value entry.\n", ';'); | |
| 1324 return; | |
| 1325 } | |
| 1326 next_char(); // skip the semi-colon | |
| 1327 | |
| 1328 // Check ident for validity | |
| 1329 if (_AD._pipeline && !_AD._pipeline->_classlist.search(ident)) { | |
| 1330 parse_err(SYNERR, "\"%s\" is not a valid pipeline class\n", ident); | |
| 1331 return; | |
| 1332 } | |
| 1333 | |
| 1334 // Add this instruction to the list in the pipeline class | |
| 1335 _AD._pipeline->_classdict[ident]->is_pipeclass()->_instructs.addName(instr._ident); | |
| 1336 | |
| 1337 // Set the name of the pipeline class in the instruction | |
| 1338 instr._ins_pipe = ident; | |
| 1339 return; | |
| 1340 } | |
| 1341 | |
| 1342 //------------------------------pipe_parse------------------------------------- | |
| 1343 void ADLParser::pipe_parse(void) { | |
| 1344 PipelineForm *pipeline; // Encode class for instruction/operand | |
| 1345 char * ident; | |
| 1346 | |
| 1347 pipeline = new PipelineForm(); // Build new Source object | |
| 1348 _AD.addForm(pipeline); | |
| 1349 | |
| 1350 skipws(); // Skip leading whitespace | |
| 1351 // Check for block delimiter | |
| 1352 if ( (_curchar != '%') | |
| 1353 || ( next_char(), (_curchar != '{')) ) { | |
| 1354 parse_err(SYNERR, "missing '%{' in pipeline definition\n"); | |
| 1355 return; | |
| 1356 } | |
| 1357 next_char(); // Maintain the invariant | |
| 1358 do { | |
| 1359 ident = get_ident(); // Grab next identifier | |
| 1360 if (ident == NULL) { | |
| 1361 parse_err(SYNERR, "keyword identifier expected at %c\n", _curchar); | |
| 1362 continue; | |
| 1363 } | |
| 1364 if (!strcmp(ident, "resources" )) resource_parse(*pipeline); | |
| 1365 else if (!strcmp(ident, "pipe_desc" )) pipe_desc_parse(*pipeline); | |
| 1366 else if (!strcmp(ident, "pipe_class")) pipe_class_parse(*pipeline); | |
| 1367 else if (!strcmp(ident, "define")) { | |
| 1368 skipws(); | |
| 1369 if ( (_curchar != '%') | |
| 1370 || ( next_char(), (_curchar != '{')) ) { | |
| 1371 parse_err(SYNERR, "expected '%{'\n"); | |
| 1372 return; | |
| 1373 } | |
| 1374 next_char(); skipws(); | |
| 1375 | |
| 1376 char *node_class = get_ident(); | |
| 1377 if (node_class == NULL) { | |
| 1378 parse_err(SYNERR, "expected identifier, found \"%c\"\n", _curchar); | |
| 1379 return; | |
| 1380 } | |
| 1381 | |
| 1382 skipws(); | |
| 1383 if (_curchar != ',' && _curchar != '=') { | |
| 1384 parse_err(SYNERR, "expected `=`, found '%c'\n", _curchar); | |
| 1385 break; | |
| 1386 } | |
| 1387 next_char(); skipws(); | |
| 1388 | |
| 1389 char *pipe_class = get_ident(); | |
| 1390 if (pipe_class == NULL) { | |
| 1391 parse_err(SYNERR, "expected identifier, found \"%c\"\n", _curchar); | |
| 1392 return; | |
| 1393 } | |
| 1394 if (_curchar != ';' ) { | |
| 1395 parse_err(SYNERR, "expected `;`, found '%c'\n", _curchar); | |
| 1396 break; | |
| 1397 } | |
| 1398 next_char(); // Skip over semi-colon | |
| 1399 | |
| 1400 skipws(); | |
| 1401 if ( (_curchar != '%') | |
| 1402 || ( next_char(), (_curchar != '}')) ) { | |
| 1403 parse_err(SYNERR, "expected '%%}', found \"%c\"\n", _curchar); | |
| 1404 } | |
| 1405 next_char(); | |
| 1406 | |
| 1407 // Check ident for validity | |
| 1408 if (_AD._pipeline && !_AD._pipeline->_classlist.search(pipe_class)) { | |
| 1409 parse_err(SYNERR, "\"%s\" is not a valid pipeline class\n", pipe_class); | |
| 1410 return; | |
| 1411 } | |
| 1412 | |
| 1413 // Add this machine node to the list in the pipeline class | |
| 1414 _AD._pipeline->_classdict[pipe_class]->is_pipeclass()->_instructs.addName(node_class); | |
| 1415 | |
| 1416 MachNodeForm *machnode = new MachNodeForm(node_class); // Create new machnode form | |
| 1417 machnode->_machnode_pipe = pipe_class; | |
| 1418 | |
| 1419 _AD.addForm(machnode); | |
| 1420 } | |
| 1421 else if (!strcmp(ident, "attributes")) { | |
| 1422 bool vsi_seen = false, bhds_seen = false; | |
| 1423 | |
| 1424 skipws(); | |
| 1425 if ( (_curchar != '%') | |
| 1426 || ( next_char(), (_curchar != '{')) ) { | |
| 1427 parse_err(SYNERR, "expected '%{'\n"); | |
| 1428 return; | |
| 1429 } | |
| 1430 next_char(); skipws(); | |
| 1431 | |
| 1432 while (_curchar != '%') { | |
| 1433 ident = get_ident(); | |
| 1434 if (ident == NULL) | |
| 1435 break; | |
| 1436 | |
| 1437 if (!strcmp(ident, "variable_size_instructions")) { | |
| 1438 skipws(); | |
| 1439 if (_curchar == ';') { | |
| 1440 next_char(); skipws(); | |
| 1441 } | |
| 1442 | |
| 1443 pipeline->_variableSizeInstrs = true; | |
| 1444 vsi_seen = true; | |
| 1445 continue; | |
| 1446 } | |
| 1447 | |
| 1448 if (!strcmp(ident, "fixed_size_instructions")) { | |
| 1449 skipws(); | |
| 1450 if (_curchar == ';') { | |
| 1451 next_char(); skipws(); | |
| 1452 } | |
| 1453 | |
| 1454 pipeline->_variableSizeInstrs = false; | |
| 1455 vsi_seen = true; | |
| 1456 continue; | |
| 1457 } | |
| 1458 | |
| 1459 if (!strcmp(ident, "branch_has_delay_slot")) { | |
| 1460 skipws(); | |
| 1461 if (_curchar == ';') { | |
| 1462 next_char(); skipws(); | |
| 1463 } | |
| 1464 | |
| 1465 pipeline->_branchHasDelaySlot = true; | |
| 1466 bhds_seen = true; | |
| 1467 continue; | |
| 1468 } | |
| 1469 | |
| 1470 if (!strcmp(ident, "max_instructions_per_bundle")) { | |
| 1471 skipws(); | |
| 1472 if (_curchar != '=') { | |
| 1473 parse_err(SYNERR, "expected `=`\n"); | |
| 1474 break; | |
| 1475 } | |
| 1476 | |
| 1477 next_char(); skipws(); | |
| 1478 pipeline->_maxInstrsPerBundle = get_int(); | |
| 1479 skipws(); | |
| 1480 | |
| 1481 if (_curchar == ';') { | |
| 1482 next_char(); skipws(); | |
| 1483 } | |
| 1484 | |
| 1485 continue; | |
| 1486 } | |
| 1487 | |
| 1488 if (!strcmp(ident, "max_bundles_per_cycle")) { | |
| 1489 skipws(); | |
| 1490 if (_curchar != '=') { | |
| 1491 parse_err(SYNERR, "expected `=`\n"); | |
| 1492 break; | |
| 1493 } | |
| 1494 | |
| 1495 next_char(); skipws(); | |
| 1496 pipeline->_maxBundlesPerCycle = get_int(); | |
| 1497 skipws(); | |
| 1498 | |
| 1499 if (_curchar == ';') { | |
| 1500 next_char(); skipws(); | |
| 1501 } | |
| 1502 | |
| 1503 continue; | |
| 1504 } | |
| 1505 | |
| 1506 if (!strcmp(ident, "instruction_unit_size")) { | |
| 1507 skipws(); | |
| 1508 if (_curchar != '=') { | |
| 1509 parse_err(SYNERR, "expected `=`, found '%c'\n", _curchar); | |
| 1510 break; | |
| 1511 } | |
| 1512 | |
| 1513 next_char(); skipws(); | |
| 1514 pipeline->_instrUnitSize = get_int(); | |
| 1515 skipws(); | |
| 1516 | |
| 1517 if (_curchar == ';') { | |
| 1518 next_char(); skipws(); | |
| 1519 } | |
| 1520 | |
| 1521 continue; | |
| 1522 } | |
| 1523 | |
| 1524 if (!strcmp(ident, "bundle_unit_size")) { | |
| 1525 skipws(); | |
| 1526 if (_curchar != '=') { | |
| 1527 parse_err(SYNERR, "expected `=`, found '%c'\n", _curchar); | |
| 1528 break; | |
| 1529 } | |
| 1530 | |
| 1531 next_char(); skipws(); | |
| 1532 pipeline->_bundleUnitSize = get_int(); | |
| 1533 skipws(); | |
| 1534 | |
| 1535 if (_curchar == ';') { | |
| 1536 next_char(); skipws(); | |
| 1537 } | |
| 1538 | |
| 1539 continue; | |
| 1540 } | |
| 1541 | |
| 1542 if (!strcmp(ident, "instruction_fetch_unit_size")) { | |
| 1543 skipws(); | |
| 1544 if (_curchar != '=') { | |
| 1545 parse_err(SYNERR, "expected `=`, found '%c'\n", _curchar); | |
| 1546 break; | |
| 1547 } | |
| 1548 | |
| 1549 next_char(); skipws(); | |
| 1550 pipeline->_instrFetchUnitSize = get_int(); | |
| 1551 skipws(); | |
| 1552 | |
| 1553 if (_curchar == ';') { | |
| 1554 next_char(); skipws(); | |
| 1555 } | |
| 1556 | |
| 1557 continue; | |
| 1558 } | |
| 1559 | |
| 1560 if (!strcmp(ident, "instruction_fetch_units")) { | |
| 1561 skipws(); | |
| 1562 if (_curchar != '=') { | |
| 1563 parse_err(SYNERR, "expected `=`, found '%c'\n", _curchar); | |
| 1564 break; | |
| 1565 } | |
| 1566 | |
| 1567 next_char(); skipws(); | |
| 1568 pipeline->_instrFetchUnits = get_int(); | |
| 1569 skipws(); | |
| 1570 | |
| 1571 if (_curchar == ';') { | |
| 1572 next_char(); skipws(); | |
| 1573 } | |
| 1574 | |
| 1575 continue; | |
| 1576 } | |
| 1577 | |
| 1578 if (!strcmp(ident, "nops")) { | |
| 1579 skipws(); | |
| 1580 if (_curchar != '(') { | |
| 1581 parse_err(SYNERR, "expected `(`, found '%c'\n", _curchar); | |
| 1582 break; | |
| 1583 } | |
| 1584 | |
| 1585 next_char(); skipws(); | |
| 1586 | |
| 1587 while (_curchar != ')') { | |
| 1588 ident = get_ident(); | |
| 1589 if (ident == NULL) { | |
| 1590 parse_err(SYNERR, "expected identifier for nop instruction, found '%c'\n", _curchar); | |
| 1591 break; | |
| 1592 } | |
| 1593 | |
| 1594 pipeline->_noplist.addName(ident); | |
| 1595 pipeline->_nopcnt++; | |
| 1596 skipws(); | |
| 1597 | |
| 1598 if (_curchar == ',') { | |
| 1599 next_char(); skipws(); | |
| 1600 } | |
| 1601 } | |
| 1602 | |
| 1603 next_char(); skipws(); | |
| 1604 | |
| 1605 if (_curchar == ';') { | |
| 1606 next_char(); skipws(); | |
| 1607 } | |
| 1608 | |
| 1609 continue; | |
| 1610 } | |
| 1611 | |
| 1612 parse_err(SYNERR, "unknown specifier \"%s\"\n", ident); | |
| 1613 } | |
| 1614 | |
| 1615 if ( (_curchar != '%') | |
| 1616 || ( next_char(), (_curchar != '}')) ) { | |
| 1617 parse_err(SYNERR, "expected '%}', found \"%c\"\n", _curchar); | |
| 1618 } | |
| 1619 next_char(); skipws(); | |
| 1620 | |
| 1621 if (pipeline->_maxInstrsPerBundle == 0) | |
| 1622 parse_err(SYNERR, "\"max_instructions_per_bundle\" unspecified\n"); | |
| 1623 if (pipeline->_instrUnitSize == 0 && pipeline->_bundleUnitSize == 0) | |
| 1624 parse_err(SYNERR, "\"instruction_unit_size\" and \"bundle_unit_size\" unspecified\n"); | |
| 1625 if (pipeline->_instrFetchUnitSize == 0) | |
| 1626 parse_err(SYNERR, "\"instruction_fetch_unit_size\" unspecified\n"); | |
| 1627 if (pipeline->_instrFetchUnits == 0) | |
| 1628 parse_err(SYNERR, "\"instruction_fetch_units\" unspecified\n"); | |
| 1629 if (!vsi_seen) | |
| 1630 parse_err(SYNERR, "\"variable_size_instruction\" or \"fixed_size_instruction\" unspecified\n"); | |
| 1631 } | |
| 1632 else { // Done with staticly defined parts of instruction definition | |
| 1633 parse_err(SYNERR, "expected one of \"resources\", \"pipe_desc\", \"pipe_class\", found \"%s\"\n", ident); | |
| 1634 return; | |
| 1635 } | |
| 1636 skipws(); | |
| 1637 if (_curchar == ';') | |
| 1638 skipws(); | |
| 1639 } while(_curchar != '%'); | |
| 1640 | |
| 1641 next_char(); | |
| 1642 if (_curchar != '}') { | |
| 1643 parse_err(SYNERR, "missing \"%}\" in pipeline definition\n"); | |
| 1644 return; | |
| 1645 } | |
| 1646 | |
| 1647 next_char(); | |
| 1648 } | |
| 1649 | |
| 1650 //------------------------------resource_parse---------------------------- | |
| 1651 void ADLParser::resource_parse(PipelineForm &pipeline) { | |
| 1652 ResourceForm *resource; | |
| 1653 char * ident; | |
| 1654 char * expr; | |
| 1655 unsigned mask; | |
| 1656 pipeline._rescount = 0; | |
| 1657 | |
| 1658 skipws(); // Skip leading whitespace | |
| 1659 | |
| 1660 if (_curchar != '(') { | |
| 1661 parse_err(SYNERR, "missing \"(\" in resource definition\n"); | |
| 1662 return; | |
| 1663 } | |
| 1664 | |
| 1665 do { | |
| 1666 next_char(); // Skip "(" or "," | |
| 1667 ident = get_ident(); // Grab next identifier | |
| 1668 | |
| 1669 if (ident == NULL) { | |
| 1670 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
| 1671 return; | |
| 1672 } | |
| 1673 skipws(); | |
| 1674 | |
| 1675 if (_curchar != '=') { | |
| 1676 mask = (1 << pipeline._rescount++); | |
| 1677 } | |
| 1678 else { | |
| 1679 next_char(); skipws(); | |
| 1680 expr = get_ident(); // Grab next identifier | |
| 1681 if (expr == NULL) { | |
| 1682 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
| 1683 return; | |
| 1684 } | |
| 1685 resource = (ResourceForm *) pipeline._resdict[expr]; | |
| 1686 if (resource == NULL) { | |
| 1687 parse_err(SYNERR, "resource \"%s\" is not defined\n", expr); | |
| 1688 return; | |
| 1689 } | |
| 1690 mask = resource->mask(); | |
| 1691 | |
| 1692 skipws(); | |
| 1693 while (_curchar == '|') { | |
| 1694 next_char(); skipws(); | |
| 1695 | |
| 1696 expr = get_ident(); // Grab next identifier | |
| 1697 if (expr == NULL) { | |
| 1698 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
| 1699 return; | |
| 1700 } | |
| 1701 | |
| 1702 resource = (ResourceForm *) pipeline._resdict[expr]; // Look up the value | |
| 1703 if (resource == NULL) { | |
| 1704 parse_err(SYNERR, "resource \"%s\" is not defined\n", expr); | |
| 1705 return; | |
| 1706 } | |
| 1707 | |
| 1708 mask |= resource->mask(); | |
| 1709 skipws(); | |
| 1710 } | |
| 1711 } | |
| 1712 | |
| 1713 resource = new ResourceForm(mask); | |
| 1714 | |
| 1715 pipeline._resdict.Insert(ident, resource); | |
| 1716 pipeline._reslist.addName(ident); | |
| 1717 } while (_curchar == ','); | |
| 1718 | |
| 1719 if (_curchar != ')') { | |
| 1720 parse_err(SYNERR, "\")\" expected at \"%c\"\n", _curchar); | |
| 1721 return; | |
| 1722 } | |
| 1723 | |
| 1724 next_char(); // Skip ")" | |
| 1725 if (_curchar == ';') | |
| 1726 next_char(); // Skip ";" | |
| 1727 } | |
| 1728 | |
| 1729 //------------------------------resource_parse---------------------------- | |
| 1730 void ADLParser::pipe_desc_parse(PipelineForm &pipeline) { | |
| 1731 char * ident; | |
| 1732 | |
| 1733 skipws(); // Skip leading whitespace | |
| 1734 | |
| 1735 if (_curchar != '(') { | |
| 1736 parse_err(SYNERR, "missing \"(\" in pipe_desc definition\n"); | |
| 1737 return; | |
| 1738 } | |
| 1739 | |
| 1740 do { | |
| 1741 next_char(); // Skip "(" or "," | |
| 1742 ident = get_ident(); // Grab next identifier | |
| 1743 if (ident == NULL) { | |
| 1744 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
| 1745 return; | |
| 1746 } | |
| 1747 | |
| 1748 // Add the name to the list | |
| 1749 pipeline._stages.addName(ident); | |
| 1750 pipeline._stagecnt++; | |
| 1751 | |
| 1752 skipws(); | |
| 1753 } while (_curchar == ','); | |
| 1754 | |
| 1755 if (_curchar != ')') { | |
| 1756 parse_err(SYNERR, "\")\" expected at \"%c\"\n", _curchar); | |
| 1757 return; | |
| 1758 } | |
| 1759 | |
| 1760 next_char(); // Skip ")" | |
| 1761 if (_curchar == ';') | |
| 1762 next_char(); // Skip ";" | |
| 1763 } | |
| 1764 | |
| 1765 //------------------------------pipe_class_parse-------------------------- | |
| 1766 void ADLParser::pipe_class_parse(PipelineForm &pipeline) { | |
| 1767 PipeClassForm *pipe_class; | |
| 1768 char * ident; | |
| 1769 char * stage; | |
| 1770 char * read_or_write; | |
| 1771 int is_write; | |
| 1772 int is_read; | |
| 1773 OperandForm *oper; | |
| 1774 | |
| 1775 skipws(); // Skip leading whitespace | |
| 1776 | |
| 1777 ident = get_ident(); // Grab next identifier | |
| 1778 | |
| 1779 if (ident == NULL) { | |
| 1780 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
| 1781 return; | |
| 1782 } | |
| 1783 | |
| 1784 // Create a record for the pipe_class | |
| 1785 pipe_class = new PipeClassForm(ident, ++pipeline._classcnt); | |
| 1786 pipeline._classdict.Insert(ident, pipe_class); | |
| 1787 pipeline._classlist.addName(ident); | |
| 1788 | |
| 1789 // Then get the operands | |
| 1790 skipws(); | |
| 1791 if (_curchar != '(') { | |
| 1792 parse_err(SYNERR, "missing \"(\" in pipe_class definition\n"); | |
| 1793 } | |
| 1794 // Parse the operand list | |
| 1795 else get_oplist(pipe_class->_parameters, pipe_class->_localNames); | |
| 1796 skipws(); // Skip leading whitespace | |
| 1797 // Check for block delimiter | |
| 1798 if ( (_curchar != '%') | |
| 1799 || ( next_char(), (_curchar != '{')) ) { | |
| 1800 parse_err(SYNERR, "missing \"%{\" in pipe_class definition\n"); | |
| 1801 return; | |
| 1802 } | |
| 1803 next_char(); | |
| 1804 | |
| 1805 do { | |
| 1806 ident = get_ident(); // Grab next identifier | |
| 1807 if (ident == NULL) { | |
| 1808 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
| 1809 continue; | |
| 1810 } | |
| 1811 skipws(); | |
| 1812 | |
| 1813 if (!strcmp(ident, "fixed_latency")) { | |
| 1814 skipws(); | |
| 1815 if (_curchar != '(') { | |
| 1816 parse_err(SYNERR, "missing \"(\" in latency definition\n"); | |
| 1817 return; | |
| 1818 } | |
| 1819 next_char(); skipws(); | |
| 1820 if( !isdigit(_curchar) ) { | |
| 1821 parse_err(SYNERR, "number expected for \"%c\" in latency definition\n", _curchar); | |
| 1822 return; | |
| 1823 } | |
| 1824 int fixed_latency = get_int(); | |
| 1825 skipws(); | |
| 1826 if (_curchar != ')') { | |
| 1827 parse_err(SYNERR, "missing \")\" in latency definition\n"); | |
| 1828 return; | |
| 1829 } | |
| 1830 next_char(); skipws(); | |
| 1831 if (_curchar != ';') { | |
| 1832 parse_err(SYNERR, "missing \";\" in latency definition\n"); | |
| 1833 return; | |
| 1834 } | |
| 1835 | |
| 1836 pipe_class->setFixedLatency(fixed_latency); | |
| 1837 next_char(); skipws(); | |
| 1838 continue; | |
| 1839 } | |
| 1840 | |
| 1841 if (!strcmp(ident, "zero_instructions") || | |
| 1842 !strcmp(ident, "no_instructions")) { | |
| 1843 skipws(); | |
| 1844 if (_curchar != ';') { | |
| 1845 parse_err(SYNERR, "missing \";\" in latency definition\n"); | |
| 1846 return; | |
| 1847 } | |
| 1848 | |
| 1849 pipe_class->setInstructionCount(0); | |
| 1850 next_char(); skipws(); | |
| 1851 continue; | |
| 1852 } | |
| 1853 | |
| 1854 if (!strcmp(ident, "one_instruction_with_delay_slot") || | |
| 1855 !strcmp(ident, "single_instruction_with_delay_slot")) { | |
| 1856 skipws(); | |
| 1857 if (_curchar != ';') { | |
| 1858 parse_err(SYNERR, "missing \";\" in latency definition\n"); | |
| 1859 return; | |
| 1860 } | |
| 1861 | |
| 1862 pipe_class->setInstructionCount(1); | |
| 1863 pipe_class->setBranchDelay(true); | |
| 1864 next_char(); skipws(); | |
| 1865 continue; | |
| 1866 } | |
| 1867 | |
| 1868 if (!strcmp(ident, "one_instruction") || | |
| 1869 !strcmp(ident, "single_instruction")) { | |
| 1870 skipws(); | |
| 1871 if (_curchar != ';') { | |
| 1872 parse_err(SYNERR, "missing \";\" in latency definition\n"); | |
| 1873 return; | |
| 1874 } | |
| 1875 | |
| 1876 pipe_class->setInstructionCount(1); | |
| 1877 next_char(); skipws(); | |
| 1878 continue; | |
| 1879 } | |
| 1880 | |
| 1881 if (!strcmp(ident, "instructions_in_first_bundle") || | |
| 1882 !strcmp(ident, "instruction_count")) { | |
| 1883 skipws(); | |
| 1884 | |
| 1885 int number_of_instructions = 1; | |
| 1886 | |
| 1887 if (_curchar != '(') { | |
| 1888 parse_err(SYNERR, "\"(\" expected at \"%c\"\n", _curchar); | |
| 1889 continue; | |
| 1890 } | |
| 1891 | |
| 1892 next_char(); skipws(); | |
| 1893 number_of_instructions = get_int(); | |
| 1894 | |
| 1895 skipws(); | |
| 1896 if (_curchar != ')') { | |
| 1897 parse_err(SYNERR, "\")\" expected at \"%c\"\n", _curchar); | |
| 1898 continue; | |
| 1899 } | |
| 1900 | |
| 1901 next_char(); skipws(); | |
| 1902 if (_curchar != ';') { | |
| 1903 parse_err(SYNERR, "missing \";\" in latency definition\n"); | |
| 1904 return; | |
| 1905 } | |
| 1906 | |
| 1907 pipe_class->setInstructionCount(number_of_instructions); | |
| 1908 next_char(); skipws(); | |
| 1909 continue; | |
| 1910 } | |
| 1911 | |
| 1912 if (!strcmp(ident, "multiple_bundles")) { | |
| 1913 skipws(); | |
| 1914 if (_curchar != ';') { | |
| 1915 parse_err(SYNERR, "missing \";\" after multiple bundles\n"); | |
| 1916 return; | |
| 1917 } | |
| 1918 | |
| 1919 pipe_class->setMultipleBundles(true); | |
| 1920 next_char(); skipws(); | |
| 1921 continue; | |
| 1922 } | |
| 1923 | |
| 1924 if (!strcmp(ident, "has_delay_slot")) { | |
| 1925 skipws(); | |
| 1926 if (_curchar != ';') { | |
| 1927 parse_err(SYNERR, "missing \";\" after \"has_delay_slot\"\n"); | |
| 1928 return; | |
| 1929 } | |
| 1930 | |
| 1931 pipe_class->setBranchDelay(true); | |
| 1932 next_char(); skipws(); | |
| 1933 continue; | |
| 1934 } | |
| 1935 | |
| 1936 if (!strcmp(ident, "force_serialization")) { | |
| 1937 skipws(); | |
| 1938 if (_curchar != ';') { | |
| 1939 parse_err(SYNERR, "missing \";\" after \"force_serialization\"\n"); | |
| 1940 return; | |
| 1941 } | |
| 1942 | |
| 1943 pipe_class->setForceSerialization(true); | |
| 1944 next_char(); skipws(); | |
| 1945 continue; | |
| 1946 } | |
| 1947 | |
| 1948 if (!strcmp(ident, "may_have_no_code")) { | |
| 1949 skipws(); | |
| 1950 if (_curchar != ';') { | |
| 1951 parse_err(SYNERR, "missing \";\" after \"may_have_no_code\"\n"); | |
| 1952 return; | |
| 1953 } | |
| 1954 | |
| 1955 pipe_class->setMayHaveNoCode(true); | |
| 1956 next_char(); skipws(); | |
| 1957 continue; | |
| 1958 } | |
| 1959 | |
| 1960 const Form *parm = pipe_class->_localNames[ident]; | |
| 1961 if (parm != NULL) { | |
| 1962 oper = parm->is_operand(); | |
| 1963 if (oper == NULL && !parm->is_opclass()) { | |
| 1964 parse_err(SYNERR, "operand name expected at %s\n", ident); | |
| 1965 continue; | |
| 1966 } | |
| 1967 | |
| 1968 if (_curchar != ':') { | |
| 1969 parse_err(SYNERR, "\":\" expected at \"%c\"\n", _curchar); | |
| 1970 continue; | |
| 1971 } | |
| 1972 next_char(); skipws(); | |
| 1973 stage = get_ident(); | |
| 1974 if (stage == NULL) { | |
| 1975 parse_err(SYNERR, "pipeline stage identifier expected at \"%c\"\n", _curchar); | |
| 1976 continue; | |
| 1977 } | |
| 1978 | |
| 1979 skipws(); | |
| 1980 if (_curchar != '(') { | |
| 1981 parse_err(SYNERR, "\"(\" expected at \"%c\"\n", _curchar); | |
| 1982 continue; | |
| 1983 } | |
| 1984 | |
| 1985 next_char(); | |
| 1986 read_or_write = get_ident(); | |
| 1987 if (read_or_write == NULL) { | |
| 1988 parse_err(SYNERR, "\"read\" or \"write\" expected at \"%c\"\n", _curchar); | |
| 1989 continue; | |
| 1990 } | |
| 1991 | |
| 1992 is_read = strcmp(read_or_write, "read") == 0; | |
| 1993 is_write = strcmp(read_or_write, "write") == 0; | |
| 1994 if (!is_read && !is_write) { | |
| 1995 parse_err(SYNERR, "\"read\" or \"write\" expected at \"%c\"\n", _curchar); | |
| 1996 continue; | |
| 1997 } | |
| 1998 | |
| 1999 skipws(); | |
| 2000 if (_curchar != ')') { | |
| 2001 parse_err(SYNERR, "\")\" expected at \"%c\"\n", _curchar); | |
| 2002 continue; | |
| 2003 } | |
| 2004 | |
| 2005 next_char(); skipws(); | |
| 2006 int more_instrs = 0; | |
| 2007 if (_curchar == '+') { | |
| 2008 next_char(); skipws(); | |
| 2009 if (_curchar < '0' || _curchar > '9') { | |
| 2010 parse_err(SYNERR, "<number> expected at \"%c\"\n", _curchar); | |
| 2011 continue; | |
| 2012 } | |
| 2013 while (_curchar >= '0' && _curchar <= '9') { | |
| 2014 more_instrs *= 10; | |
| 2015 more_instrs += _curchar - '0'; | |
| 2016 next_char(); | |
| 2017 } | |
| 2018 skipws(); | |
| 2019 } | |
| 2020 | |
| 2021 PipeClassOperandForm *pipe_operand = new PipeClassOperandForm(stage, is_write, more_instrs); | |
| 2022 pipe_class->_localUsage.Insert(ident, pipe_operand); | |
| 2023 | |
| 2024 if (_curchar == '%') | |
| 2025 continue; | |
| 2026 | |
| 2027 if (_curchar != ';') { | |
| 2028 parse_err(SYNERR, "\";\" expected at \"%c\"\n", _curchar); | |
| 2029 continue; | |
| 2030 } | |
| 2031 next_char(); skipws(); | |
| 2032 continue; | |
| 2033 } | |
| 2034 | |
| 2035 // Scan for Resource Specifier | |
| 2036 const Form *res = pipeline._resdict[ident]; | |
| 2037 if (res != NULL) { | |
| 2038 int cyclecnt = 1; | |
| 2039 if (_curchar != ':') { | |
| 2040 parse_err(SYNERR, "\":\" expected at \"%c\"\n", _curchar); | |
| 2041 continue; | |
| 2042 } | |
| 2043 next_char(); skipws(); | |
| 2044 stage = get_ident(); | |
| 2045 if (stage == NULL) { | |
| 2046 parse_err(SYNERR, "pipeline stage identifier expected at \"%c\"\n", _curchar); | |
| 2047 continue; | |
| 2048 } | |
| 2049 | |
| 2050 skipws(); | |
| 2051 if (_curchar == '(') { | |
| 2052 next_char(); | |
| 2053 cyclecnt = get_int(); | |
| 2054 | |
| 2055 skipws(); | |
| 2056 if (_curchar != ')') { | |
| 2057 parse_err(SYNERR, "\")\" expected at \"%c\"\n", _curchar); | |
| 2058 continue; | |
| 2059 } | |
| 2060 | |
| 2061 next_char(); skipws(); | |
| 2062 } | |
| 2063 | |
| 2064 PipeClassResourceForm *resource = new PipeClassResourceForm(ident, stage, cyclecnt); | |
| 2065 int stagenum = pipeline._stages.index(stage); | |
| 2066 if (pipeline._maxcycleused < (stagenum+cyclecnt)) | |
| 2067 pipeline._maxcycleused = (stagenum+cyclecnt); | |
| 2068 pipe_class->_resUsage.addForm(resource); | |
| 2069 | |
| 2070 if (_curchar == '%') | |
| 2071 continue; | |
| 2072 | |
| 2073 if (_curchar != ';') { | |
| 2074 parse_err(SYNERR, "\";\" expected at \"%c\"\n", _curchar); | |
| 2075 continue; | |
| 2076 } | |
| 2077 next_char(); skipws(); | |
| 2078 continue; | |
| 2079 } | |
| 2080 | |
| 2081 parse_err(SYNERR, "resource expected at \"%s\"\n", ident); | |
| 2082 return; | |
| 2083 } while(_curchar != '%'); | |
| 2084 | |
| 2085 next_char(); | |
| 2086 if (_curchar != '}') { | |
| 2087 parse_err(SYNERR, "missing \"%}\" in pipe_class definition\n"); | |
| 2088 return; | |
| 2089 } | |
| 2090 | |
| 2091 next_char(); | |
| 2092 } | |
| 2093 | |
| 2094 //------------------------------peep_parse------------------------------------- | |
| 2095 void ADLParser::peep_parse(void) { | |
| 2096 Peephole *peep; // Pointer to current peephole rule form | |
| 2097 char *desc = NULL; // String representation of rule | |
| 2098 | |
| 2099 skipws(); // Skip leading whitespace | |
| 2100 | |
| 2101 peep = new Peephole(); // Build new Peephole object | |
| 2102 // Check for open block sequence | |
| 2103 skipws(); // Skip leading whitespace | |
| 2104 if (_curchar == '%' && *(_ptr+1) == '{') { | |
| 2105 next_char(); next_char(); // Skip "%{" | |
| 2106 skipws(); | |
| 2107 while (_curchar != '%' && *(_ptr+1) != '}') { | |
| 2108 char *token = get_ident(); | |
| 2109 if (token == NULL) { | |
| 2110 parse_err(SYNERR, "missing identifier inside peephole rule.\n"); | |
| 2111 return; | |
| 2112 } | |
| 2113 // check for legal subsections of peephole rule | |
| 2114 if (strcmp(token,"peepmatch")==0) { | |
| 2115 peep_match_parse(*peep); } | |
| 2116 else if (strcmp(token,"peepconstraint")==0) { | |
| 2117 peep_constraint_parse(*peep); } | |
| 2118 else if (strcmp(token,"peepreplace")==0) { | |
| 2119 peep_replace_parse(*peep); } | |
| 2120 else { | |
| 2121 parse_err(SYNERR, "expected peepmatch, peepconstraint, or peepreplace for identifier %s.\n", token); | |
| 2122 } | |
| 2123 skipws(); | |
| 2124 } | |
| 2125 } | |
| 2126 else { | |
| 2127 parse_err(SYNERR, "Missing %%{ ... %%} block after peephole keyword.\n"); | |
| 2128 return; | |
| 2129 } | |
| 2130 next_char(); // Skip past '%' | |
| 2131 next_char(); // Skip past '}' | |
| 2132 } | |
| 2133 | |
| 2134 // ******************** Private Level 2 Parse Functions ******************** | |
| 2135 //------------------------------constraint_parse------------------------------ | |
| 2136 Constraint *ADLParser::constraint_parse(void) { | |
| 2137 char *func; | |
| 2138 char *arg; | |
| 2139 | |
| 2140 // Check for constraint expression | |
| 2141 skipws(); | |
| 2142 if (_curchar != '(') { | |
| 2143 parse_err(SYNERR, "missing constraint expression, (...)\n"); | |
| 2144 return NULL; | |
| 2145 } | |
| 2146 next_char(); // Skip past '(' | |
| 2147 | |
| 2148 // Get constraint function | |
| 2149 skipws(); | |
| 2150 func = get_ident(); | |
| 2151 if (func == NULL) { | |
| 2152 parse_err(SYNERR, "missing function in constraint expression.\n"); | |
| 2153 return NULL; | |
| 2154 } | |
| 2155 if (strcmp(func,"ALLOC_IN_RC")==0 | |
| 2156 || strcmp(func,"IS_R_CLASS")==0) { | |
| 2157 // Check for '(' before argument | |
| 2158 skipws(); | |
| 2159 if (_curchar != '(') { | |
| 2160 parse_err(SYNERR, "missing '(' for constraint function's argument.\n"); | |
| 2161 return NULL; | |
| 2162 } | |
| 2163 next_char(); | |
| 2164 | |
| 2165 // Get it's argument | |
| 2166 skipws(); | |
| 2167 arg = get_ident(); | |
| 2168 if (arg == NULL) { | |
| 2169 parse_err(SYNERR, "missing argument for constraint function %s\n",func); | |
| 2170 return NULL; | |
| 2171 } | |
| 2172 // Check for ')' after argument | |
| 2173 skipws(); | |
| 2174 if (_curchar != ')') { | |
| 2175 parse_err(SYNERR, "missing ')' after constraint function argument %s\n",arg); | |
| 2176 return NULL; | |
| 2177 } | |
| 2178 next_char(); | |
| 2179 } else { | |
| 2180 parse_err(SYNERR, "Invalid constraint function %s\n",func); | |
| 2181 return NULL; | |
| 2182 } | |
| 2183 | |
| 2184 // Check for closing paren and ';' | |
| 2185 skipws(); | |
| 2186 if (_curchar != ')') { | |
| 2187 parse_err(SYNERR, "Missing ')' for constraint function %s\n",func); | |
| 2188 return NULL; | |
| 2189 } | |
| 2190 next_char(); | |
| 2191 skipws(); | |
| 2192 if (_curchar != ';') { | |
| 2193 parse_err(SYNERR, "Missing ';' after constraint.\n"); | |
| 2194 return NULL; | |
| 2195 } | |
| 2196 next_char(); | |
| 2197 | |
| 2198 // Create new "Constraint" | |
| 2199 Constraint *constraint = new Constraint(func,arg); | |
| 2200 return constraint; | |
| 2201 } | |
| 2202 | |
| 2203 //------------------------------constr_parse----------------------------------- | |
| 2204 ConstructRule *ADLParser::construct_parse(void) { | |
| 2205 return NULL; | |
| 2206 } | |
| 2207 | |
| 2208 | |
| 2209 //------------------------------reg_def_parse---------------------------------- | |
| 2210 void ADLParser::reg_def_parse(void) { | |
| 2211 char *rname; // Name of register being defined | |
| 2212 | |
| 2213 // Get register name | |
| 2214 skipws(); // Skip whitespace | |
| 2215 rname = get_ident(); | |
| 2216 if (rname == NULL) { | |
| 2217 parse_err(SYNERR, "missing register name after reg_def\n"); | |
| 2218 return; | |
| 2219 } | |
| 2220 | |
| 2221 // Check for definition of register calling convention (save on call, ...), | |
| 2222 // register save type, and register encoding value. | |
| 2223 skipws(); | |
| 2224 char *callconv = NULL; | |
| 2225 char *c_conv = NULL; | |
| 2226 char *idealtype = NULL; | |
| 2227 char *encoding = NULL; | |
| 2228 char *concrete = NULL; | |
| 2229 if (_curchar == '(') { | |
| 2230 next_char(); | |
| 2231 callconv = get_ident(); | |
| 2232 // Parse the internal calling convention, must be NS, SOC, SOE, or AS. | |
| 2233 if (callconv == NULL) { | |
| 2234 parse_err(SYNERR, "missing register calling convention value\n"); | |
| 2235 return; | |
| 2236 } | |
| 2237 if(strcmp(callconv, "SOC") && strcmp(callconv,"SOE") && | |
| 2238 strcmp(callconv, "NS") && strcmp(callconv, "AS")) { | |
| 2239 parse_err(SYNERR, "invalid value for register calling convention\n"); | |
| 2240 } | |
| 2241 skipws(); | |
| 2242 if (_curchar != ',') { | |
| 2243 parse_err(SYNERR, "missing comma in register definition statement\n"); | |
| 2244 return; | |
| 2245 } | |
| 2246 next_char(); | |
| 2247 | |
| 2248 // Parse the native calling convention, must be NS, SOC, SOE, AS | |
| 2249 c_conv = get_ident(); | |
| 2250 if (c_conv == NULL) { | |
| 2251 parse_err(SYNERR, "missing register native calling convention value\n"); | |
| 2252 return; | |
| 2253 } | |
| 2254 if(strcmp(c_conv, "SOC") && strcmp(c_conv,"SOE") && | |
| 2255 strcmp(c_conv, "NS") && strcmp(c_conv, "AS")) { | |
| 2256 parse_err(SYNERR, "invalid value for register calling convention\n"); | |
| 2257 } | |
| 2258 skipws(); | |
| 2259 if (_curchar != ',') { | |
| 2260 parse_err(SYNERR, "missing comma in register definition statement\n"); | |
| 2261 return; | |
| 2262 } | |
| 2263 next_char(); | |
| 2264 skipws(); | |
| 2265 | |
| 2266 // Parse the ideal save type | |
| 2267 idealtype = get_ident(); | |
| 2268 if (idealtype == NULL) { | |
| 2269 parse_err(SYNERR, "missing register save type value\n"); | |
| 2270 return; | |
| 2271 } | |
| 2272 skipws(); | |
| 2273 if (_curchar != ',') { | |
| 2274 parse_err(SYNERR, "missing comma in register definition statement\n"); | |
| 2275 return; | |
| 2276 } | |
| 2277 next_char(); | |
| 2278 skipws(); | |
| 2279 | |
| 2280 // Parse the encoding value | |
| 2281 encoding = get_expr("encoding", ","); | |
| 2282 if (encoding == NULL) { | |
| 2283 parse_err(SYNERR, "missing register encoding value\n"); | |
| 2284 return; | |
| 2285 } | |
| 2286 trim(encoding); | |
| 2287 if (_curchar != ',') { | |
| 2288 parse_err(SYNERR, "missing comma in register definition statement\n"); | |
| 2289 return; | |
| 2290 } | |
| 2291 next_char(); | |
| 2292 skipws(); | |
| 2293 // Parse the concrete name type | |
| 2294 // concrete = get_ident(); | |
| 2295 concrete = get_expr("concrete", ")"); | |
| 2296 if (concrete == NULL) { | |
| 2297 parse_err(SYNERR, "missing vm register name value\n"); | |
| 2298 return; | |
| 2299 } | |
| 2300 | |
| 2301 if (_curchar != ')') { | |
| 2302 parse_err(SYNERR, "missing ')' in register definition statement\n"); | |
| 2303 return; | |
| 2304 } | |
| 2305 next_char(); | |
| 2306 } | |
| 2307 | |
| 2308 // Check for closing ';' | |
| 2309 skipws(); | |
| 2310 if (_curchar != ';') { | |
| 2311 parse_err(SYNERR, "missing ';' after reg_def\n"); | |
| 2312 return; | |
| 2313 } | |
| 2314 next_char(); // move past ';' | |
| 2315 | |
| 2316 // Debug Stuff | |
| 2317 if (_AD._adl_debug > 1) { | |
| 2318 fprintf(stderr,"Register Definition: %s ( %s, %s %s )\n", rname, | |
| 2319 (callconv ? callconv : ""), (c_conv ? c_conv : ""), concrete); | |
| 2320 } | |
| 2321 | |
| 2322 // Record new register definition. | |
| 2323 _AD._register->addRegDef(rname, callconv, c_conv, idealtype, encoding, concrete); | |
| 2324 return; | |
| 2325 } | |
| 2326 | |
| 2327 //------------------------------reg_class_parse-------------------------------- | |
| 2328 void ADLParser::reg_class_parse(void) { | |
| 2329 char *cname; // Name of register class being defined | |
| 2330 | |
| 2331 // Get register class name | |
| 2332 skipws(); // Skip leading whitespace | |
| 2333 cname = get_ident(); | |
| 2334 if (cname == NULL) { | |
| 2335 parse_err(SYNERR, "missing register class name after 'reg_class'\n"); | |
| 2336 return; | |
| 2337 } | |
| 2338 // Debug Stuff | |
| 2339 if (_AD._adl_debug >1) fprintf(stderr,"Register Class: %s\n", cname); | |
| 2340 | |
| 2341 RegClass *reg_class = _AD._register->addRegClass(cname); | |
| 2342 | |
| 2343 // Collect registers in class | |
| 2344 skipws(); | |
| 2345 if (_curchar == '(') { | |
| 2346 next_char(); // Skip '(' | |
| 2347 skipws(); | |
| 2348 while (_curchar != ')') { | |
| 2349 char *rname = get_ident(); | |
| 2350 if (rname==NULL) { | |
| 2351 parse_err(SYNERR, "missing identifier inside reg_class list.\n"); | |
| 2352 return; | |
| 2353 } | |
| 2354 RegDef *regDef = _AD._register->getRegDef(rname); | |
|
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2355 if (!regDef) { |
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2356 parse_err(SEMERR, "unknown identifier %s inside reg_class list.\n", rname); |
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2357 } else { |
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2358 reg_class->addReg(regDef); // add regDef to regClass |
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2359 } |
| 0 | 2360 |
| 2361 // Check for ',' and position to next token. | |
| 2362 skipws(); | |
| 2363 if (_curchar == ',') { | |
| 2364 next_char(); // Skip trailing ',' | |
| 2365 skipws(); | |
| 2366 } | |
| 2367 } | |
| 2368 next_char(); // Skip closing ')' | |
| 2369 } | |
| 2370 | |
| 2371 // Check for terminating ';' | |
| 2372 skipws(); | |
| 2373 if (_curchar != ';') { | |
| 2374 parse_err(SYNERR, "missing ';' at end of reg_class definition.\n"); | |
| 2375 return; | |
| 2376 } | |
| 2377 next_char(); // Skip trailing ';' | |
| 2378 | |
| 2379 // Check RegClass size, must be <= 32 registers in class. | |
| 2380 | |
| 2381 return; | |
| 2382 } | |
| 2383 | |
| 2384 //------------------------------alloc_class_parse------------------------------ | |
| 2385 void ADLParser::alloc_class_parse(void) { | |
| 2386 char *name; // Name of allocation class being defined | |
| 2387 | |
| 2388 // Get allocation class name | |
| 2389 skipws(); // Skip leading whitespace | |
| 2390 name = get_ident(); | |
| 2391 if (name == NULL) { | |
| 2392 parse_err(SYNERR, "missing allocation class name after 'reg_class'\n"); | |
| 2393 return; | |
| 2394 } | |
| 2395 // Debug Stuff | |
| 2396 if (_AD._adl_debug >1) fprintf(stderr,"Allocation Class: %s\n", name); | |
| 2397 | |
| 2398 AllocClass *alloc_class = _AD._register->addAllocClass(name); | |
| 2399 | |
| 2400 // Collect registers in class | |
| 2401 skipws(); | |
| 2402 if (_curchar == '(') { | |
| 2403 next_char(); // Skip '(' | |
| 2404 skipws(); | |
| 2405 while (_curchar != ')') { | |
| 2406 char *rname = get_ident(); | |
| 2407 if (rname==NULL) { | |
| 2408 parse_err(SYNERR, "missing identifier inside reg_class list.\n"); | |
| 2409 return; | |
| 2410 } | |
| 2411 // Check if name is a RegDef | |
| 2412 RegDef *regDef = _AD._register->getRegDef(rname); | |
| 2413 if (regDef) { | |
| 2414 alloc_class->addReg(regDef); // add regDef to allocClass | |
| 2415 } else { | |
| 2416 | |
| 2417 // name must be a RegDef or a RegClass | |
| 2418 parse_err(SYNERR, "name %s should be a previously defined reg_def.\n", rname); | |
| 2419 return; | |
| 2420 } | |
| 2421 | |
| 2422 // Check for ',' and position to next token. | |
| 2423 skipws(); | |
| 2424 if (_curchar == ',') { | |
| 2425 next_char(); // Skip trailing ',' | |
| 2426 skipws(); | |
| 2427 } | |
| 2428 } | |
| 2429 next_char(); // Skip closing ')' | |
| 2430 } | |
| 2431 | |
| 2432 // Check for terminating ';' | |
| 2433 skipws(); | |
| 2434 if (_curchar != ';') { | |
| 2435 parse_err(SYNERR, "missing ';' at end of reg_class definition.\n"); | |
| 2436 return; | |
| 2437 } | |
| 2438 next_char(); // Skip trailing ';' | |
| 2439 | |
| 2440 return; | |
| 2441 } | |
| 2442 | |
| 2443 //------------------------------peep_match_child_parse------------------------- | |
| 2444 InstructForm *ADLParser::peep_match_child_parse(PeepMatch &match, int parent, int &position, int input){ | |
| 2445 char *token = NULL; | |
| 2446 int lparen = 0; // keep track of parenthesis nesting depth | |
| 2447 int rparen = 0; // position of instruction at this depth | |
| 2448 InstructForm *inst_seen = NULL; | |
| 2449 InstructForm *child_seen = NULL; | |
| 2450 | |
| 2451 // Walk the match tree, | |
| 2452 // Record <parent, position, instruction name, input position> | |
| 2453 while ( lparen >= rparen ) { | |
| 2454 skipws(); | |
| 2455 // Left paren signals start of an input, collect with recursive call | |
| 2456 if (_curchar == '(') { | |
| 2457 ++lparen; | |
| 2458 next_char(); | |
| 2459 child_seen = peep_match_child_parse(match, parent, position, rparen); | |
| 2460 } | |
| 2461 // Right paren signals end of an input, may be more | |
| 2462 else if (_curchar == ')') { | |
| 2463 ++rparen; | |
| 2464 if( rparen == lparen ) { // IF rparen matches an lparen I've seen | |
| 2465 next_char(); // move past ')' | |
| 2466 } else { // ELSE leave ')' for parent | |
| 2467 assert( rparen == lparen + 1, "Should only see one extra ')'"); | |
| 2468 // if an instruction was not specified for this paren-pair | |
| 2469 if( ! inst_seen ) { // record signal entry | |
| 2470 match.add_instruction( parent, position, NameList::_signal, input ); | |
| 2471 ++position; | |
| 2472 } | |
| 2473 // ++input; // TEMPORARY | |
| 2474 return inst_seen; | |
| 2475 } | |
| 2476 } | |
| 2477 // if no parens, then check for instruction name | |
| 2478 // This instruction is the parent of a sub-tree | |
| 2479 else if ((token = get_ident_dup()) != NULL) { | |
| 2480 const Form *form = _AD._globalNames[token]; | |
| 2481 if (form) { | |
| 2482 InstructForm *inst = form->is_instruction(); | |
| 2483 // Record the first instruction at this level | |
| 2484 if( inst_seen == NULL ) { | |
| 2485 inst_seen = inst; | |
| 2486 } | |
| 2487 if (inst) { | |
| 2488 match.add_instruction( parent, position, token, input ); | |
| 2489 parent = position; | |
| 2490 ++position; | |
| 2491 } else { | |
| 2492 parse_err(SYNERR, "instruction name expected at identifier %s.\n", | |
| 2493 token); | |
| 2494 return inst_seen; | |
| 2495 } | |
| 2496 } | |
| 2497 else { | |
| 2498 parse_err(SYNERR, "missing identifier in peepmatch rule.\n"); | |
| 2499 return NULL; | |
| 2500 } | |
| 2501 } | |
| 2502 else { | |
| 2503 parse_err(SYNERR, "missing identifier in peepmatch rule.\n"); | |
| 2504 return NULL; | |
| 2505 } | |
| 2506 | |
| 2507 } // end while | |
| 2508 | |
| 2509 assert( false, "ShouldNotReachHere();"); | |
| 2510 return NULL; | |
| 2511 } | |
| 2512 | |
| 2513 //------------------------------peep_match_parse------------------------------- | |
| 2514 // Syntax for a peepmatch rule | |
| 2515 // | |
| 2516 // peepmatch ( root_instr_name [(instruction subtree)] [,(instruction subtree)]* ); | |
| 2517 // | |
| 2518 void ADLParser::peep_match_parse(Peephole &peep) { | |
| 2519 | |
| 2520 skipws(); | |
| 2521 // Check the structure of the rule | |
| 2522 // Check for open paren | |
| 2523 if (_curchar != '(') { | |
| 2524 parse_err(SYNERR, "missing '(' at start of peepmatch rule.\n"); | |
| 2525 return; | |
| 2526 } | |
| 2527 next_char(); // skip '(' | |
| 2528 | |
| 2529 // Construct PeepMatch and parse the peepmatch rule. | |
| 2530 PeepMatch *match = new PeepMatch(_ptr); | |
| 2531 int parent = -1; // parent of root | |
| 2532 int position = 0; // zero-based positions | |
| 2533 int input = 0; // input position in parent's operands | |
| 2534 InstructForm *root= peep_match_child_parse( *match, parent, position, input); | |
| 2535 if( root == NULL ) { | |
| 2536 parse_err(SYNERR, "missing instruction-name at start of peepmatch.\n"); | |
| 2537 return; | |
| 2538 } | |
| 2539 | |
| 2540 if( _curchar != ')' ) { | |
| 2541 parse_err(SYNERR, "missing ')' at end of peepmatch.\n"); | |
| 2542 return; | |
| 2543 } | |
| 2544 next_char(); // skip ')' | |
| 2545 | |
| 2546 // Check for closing semicolon | |
| 2547 skipws(); | |
| 2548 if( _curchar != ';' ) { | |
| 2549 parse_err(SYNERR, "missing ';' at end of peepmatch.\n"); | |
| 2550 return; | |
| 2551 } | |
| 2552 next_char(); // skip ';' | |
| 2553 | |
| 2554 // Store match into peep, and store peep into instruction | |
| 2555 peep.add_match(match); | |
| 2556 root->append_peephole(&peep); | |
| 2557 } | |
| 2558 | |
| 2559 //------------------------------peep_constraint_parse-------------------------- | |
| 2560 // Syntax for a peepconstraint rule | |
| 2561 // A parenthesized list of relations between operands in peepmatch subtree | |
| 2562 // | |
| 2563 // peepconstraint %{ | |
| 2564 // (instruction_number.operand_name | |
| 2565 // relational_op | |
| 2566 // instruction_number.operand_name OR register_name | |
| 2567 // [, ...] ); | |
| 2568 // | |
| 2569 // // instruction numbers are zero-based using topological order in peepmatch | |
| 2570 // | |
| 2571 void ADLParser::peep_constraint_parse(Peephole &peep) { | |
| 2572 | |
| 2573 skipws(); | |
| 2574 // Check the structure of the rule | |
| 2575 // Check for open paren | |
| 2576 if (_curchar != '(') { | |
| 2577 parse_err(SYNERR, "missing '(' at start of peepconstraint rule.\n"); | |
| 2578 return; | |
| 2579 } | |
| 2580 else { | |
| 2581 next_char(); // Skip '(' | |
| 2582 } | |
| 2583 | |
| 2584 // Check for a constraint | |
| 2585 skipws(); | |
| 2586 while( _curchar != ')' ) { | |
| 2587 // Get information on the left instruction and its operand | |
| 2588 // left-instructions's number | |
|
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2589 int left_inst = get_int(); |
| 0 | 2590 // Left-instruction's operand |
| 2591 skipws(); | |
| 2592 if( _curchar != '.' ) { | |
| 2593 parse_err(SYNERR, "missing '.' in peepconstraint after instruction number.\n"); | |
| 2594 return; | |
| 2595 } | |
| 2596 next_char(); // Skip '.' | |
| 2597 char *left_op = get_ident_dup(); | |
| 2598 | |
| 2599 skipws(); | |
| 2600 // Collect relational operator | |
| 2601 char *relation = get_relation_dup(); | |
| 2602 | |
| 2603 skipws(); | |
| 2604 // Get information on the right instruction and its operand | |
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2605 int right_inst; // Right-instructions's number |
| 0 | 2606 if( isdigit(_curchar) ) { |
| 2607 right_inst = get_int(); | |
| 2608 // Right-instruction's operand | |
| 2609 skipws(); | |
| 2610 if( _curchar != '.' ) { | |
| 2611 parse_err(SYNERR, "missing '.' in peepconstraint after instruction number.\n"); | |
| 2612 return; | |
| 2613 } | |
| 2614 next_char(); // Skip '.' | |
| 2615 } else { | |
| 2616 right_inst = -1; // Flag as being a register constraint | |
| 2617 } | |
| 2618 | |
| 2619 char *right_op = get_ident_dup(); | |
| 2620 | |
| 2621 // Construct the next PeepConstraint | |
| 2622 PeepConstraint *constraint = new PeepConstraint( left_inst, left_op, | |
| 2623 relation, | |
| 2624 right_inst, right_op ); | |
| 2625 // And append it to the list for this peephole rule | |
| 2626 peep.append_constraint( constraint ); | |
| 2627 | |
| 2628 // Check for another constraint, or end of rule | |
| 2629 skipws(); | |
| 2630 if( _curchar == ',' ) { | |
| 2631 next_char(); // Skip ',' | |
| 2632 skipws(); | |
| 2633 } | |
| 2634 else if( _curchar != ')' ) { | |
| 2635 parse_err(SYNERR, "expected ',' or ')' after peephole constraint.\n"); | |
| 2636 return; | |
| 2637 } | |
| 2638 } // end while( processing constraints ) | |
| 2639 next_char(); // Skip ')' | |
| 2640 | |
| 2641 // Check for terminating ';' | |
| 2642 skipws(); | |
| 2643 if (_curchar != ';') { | |
| 2644 parse_err(SYNERR, "missing ';' at end of peepconstraint.\n"); | |
| 2645 return; | |
| 2646 } | |
| 2647 next_char(); // Skip trailing ';' | |
| 2648 } | |
| 2649 | |
| 2650 | |
| 2651 //------------------------------peep_replace_parse----------------------------- | |
| 2652 // Syntax for a peepreplace rule | |
| 2653 // root instruction name followed by a | |
| 2654 // parenthesized list of whitespace separated instruction.operand specifiers | |
| 2655 // | |
| 2656 // peepreplace ( instr_name ( [instruction_number.operand_name]* ) ); | |
| 2657 // | |
| 2658 // | |
| 2659 void ADLParser::peep_replace_parse(Peephole &peep) { | |
| 2660 int lparen = 0; // keep track of parenthesis nesting depth | |
| 2661 int rparen = 0; // keep track of parenthesis nesting depth | |
| 2662 int icount = 0; // count of instructions in rule for naming | |
| 2663 char *str = NULL; | |
| 2664 char *token = NULL; | |
| 2665 | |
| 2666 skipws(); | |
| 2667 // Check for open paren | |
| 2668 if (_curchar != '(') { | |
| 2669 parse_err(SYNERR, "missing '(' at start of peepreplace rule.\n"); | |
| 2670 return; | |
| 2671 } | |
| 2672 else { | |
| 2673 lparen++; | |
| 2674 next_char(); | |
| 2675 } | |
| 2676 | |
| 2677 // Check for root instruction | |
| 2678 char *inst = get_ident_dup(); | |
| 2679 const Form *form = _AD._globalNames[inst]; | |
| 2680 if( form == NULL || form->is_instruction() == NULL ) { | |
| 2681 parse_err(SYNERR, "Instruction name expected at start of peepreplace.\n"); | |
| 2682 return; | |
| 2683 } | |
| 2684 | |
| 2685 // Store string representation of rule into replace | |
| 2686 PeepReplace *replace = new PeepReplace(str); | |
| 2687 replace->add_instruction( inst ); | |
| 2688 | |
| 2689 skipws(); | |
| 2690 // Start of root's operand-list | |
| 2691 if (_curchar != '(') { | |
| 2692 parse_err(SYNERR, "missing '(' at peepreplace root's operand-list.\n"); | |
| 2693 return; | |
| 2694 } | |
| 2695 else { | |
| 2696 lparen++; | |
| 2697 next_char(); | |
| 2698 } | |
| 2699 | |
| 2700 skipws(); | |
| 2701 // Get the list of operands | |
| 2702 while( _curchar != ')' ) { | |
| 2703 // Get information on an instruction and its operand | |
| 2704 // instructions's number | |
| 2705 int inst_num = get_int(); | |
| 2706 // Left-instruction's operand | |
| 2707 skipws(); | |
| 2708 if( _curchar != '.' ) { | |
| 2709 parse_err(SYNERR, "missing '.' in peepreplace after instruction number.\n"); | |
| 2710 return; | |
| 2711 } | |
| 2712 next_char(); // Skip '.' | |
| 2713 char *inst_op = get_ident_dup(); | |
| 2714 if( inst_op == NULL ) { | |
| 2715 parse_err(SYNERR, "missing operand identifier in peepreplace.\n"); | |
| 2716 return; | |
| 2717 } | |
| 2718 | |
| 2719 // Record this operand's position in peepmatch | |
| 2720 replace->add_operand( inst_num, inst_op ); | |
| 2721 skipws(); | |
| 2722 } | |
| 2723 | |
| 2724 // Check for the end of operands list | |
| 2725 skipws(); | |
| 2726 assert( _curchar == ')', "While loop should have advanced to ')'."); | |
| 2727 next_char(); // Skip ')' | |
| 2728 | |
| 2729 skipws(); | |
| 2730 // Check for end of peepreplace | |
| 2731 if( _curchar != ')' ) { | |
| 2732 parse_err(SYNERR, "missing ')' at end of peepmatch.\n"); | |
| 2733 parse_err(SYNERR, "Support one replacement instruction.\n"); | |
| 2734 return; | |
| 2735 } | |
| 2736 next_char(); // Skip ')' | |
| 2737 | |
| 2738 // Check for closing semicolon | |
| 2739 skipws(); | |
| 2740 if( _curchar != ';' ) { | |
| 2741 parse_err(SYNERR, "missing ';' at end of peepreplace.\n"); | |
| 2742 return; | |
| 2743 } | |
| 2744 next_char(); // skip ';' | |
| 2745 | |
| 2746 // Store replace into peep | |
| 2747 peep.add_replace( replace ); | |
| 2748 } | |
| 2749 | |
| 2750 //------------------------------pred_parse------------------------------------- | |
| 2751 Predicate *ADLParser::pred_parse(void) { | |
| 2752 Predicate *predicate; // Predicate class for operand | |
| 2753 char *rule = NULL; // String representation of predicate | |
| 2754 | |
| 2755 skipws(); // Skip leading whitespace | |
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2756 int line = linenum(); |
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2757 if ( (rule = get_paren_expr("pred expression", true)) == NULL ) { |
| 0 | 2758 parse_err(SYNERR, "incorrect or missing expression for 'predicate'\n"); |
| 2759 return NULL; | |
| 2760 } | |
| 2761 // Debug Stuff | |
| 2762 if (_AD._adl_debug > 1) fprintf(stderr,"Predicate: %s\n", rule); | |
| 2763 if (_curchar != ';') { | |
| 2764 parse_err(SYNERR, "missing ';' in predicate definition\n"); | |
| 2765 return NULL; | |
| 2766 } | |
| 2767 next_char(); // Point after the terminator | |
| 2768 | |
| 2769 predicate = new Predicate(rule); // Build new predicate object | |
| 2770 skipws(); | |
| 2771 return predicate; | |
| 2772 } | |
| 2773 | |
| 2774 | |
| 2775 //------------------------------ins_encode_parse_block------------------------- | |
| 2776 // Parse the block form of ins_encode. See ins_encode_parse for more details | |
| 2777 InsEncode *ADLParser::ins_encode_parse_block(InstructForm &inst) { | |
| 2778 // Create a new encoding name based on the name of the instruction | |
| 2779 // definition, which should be unique. | |
| 2780 const char * prefix = "__enc_"; | |
| 2781 char* ec_name = (char*)malloc(strlen(inst._ident) + strlen(prefix) + 1); | |
| 2782 sprintf(ec_name, "%s%s", prefix, inst._ident); | |
| 2783 | |
| 2784 assert(_AD._encode->encClass(ec_name) == NULL, "shouldn't already exist"); | |
| 2785 EncClass *encoding = _AD._encode->add_EncClass(ec_name); | |
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2786 encoding->_linenum = linenum(); |
| 0 | 2787 |
| 2788 // synthesize the arguments list for the enc_class from the | |
| 2789 // arguments to the instruct definition. | |
| 2790 const char * param = NULL; | |
| 2791 inst._parameters.reset(); | |
| 2792 while ((param = inst._parameters.iter()) != NULL) { | |
| 2793 OperandForm *opForm = (OperandForm*)inst._localNames[param]; | |
| 2794 encoding->add_parameter(opForm->_ident, param); | |
| 2795 } | |
| 2796 | |
| 2797 // Add the prologue to create the MacroAssembler | |
| 2798 encoding->add_code("\n" | |
| 2799 " // Define a MacroAssembler instance for use by the encoding. The\n" | |
| 2800 " // name is chosen to match the __ idiom used for assembly in other\n" | |
| 2801 " // parts of hotspot and assumes the existence of the standard\n" | |
| 2802 " // #define __ _masm.\n" | |
| 2803 " MacroAssembler _masm(&cbuf);\n"); | |
| 2804 | |
| 2805 // Parse the following %{ }% block | |
| 2806 enc_class_parse_block(encoding, ec_name); | |
| 2807 | |
| 2808 // Build an encoding rule which invokes the encoding rule we just | |
| 2809 // created, passing all arguments that we received. | |
| 2810 InsEncode *encrule = new InsEncode(); // Encode class for instruction | |
| 2811 NameAndList *params = encrule->add_encode(ec_name); | |
| 2812 inst._parameters.reset(); | |
| 2813 while ((param = inst._parameters.iter()) != NULL) { | |
| 2814 params->add_entry(param); | |
| 2815 } | |
| 2816 | |
| 2817 return encrule; | |
| 2818 } | |
| 2819 | |
| 2820 | |
| 2821 //------------------------------ins_encode_parse------------------------------- | |
| 2822 // Encode rules have the form | |
| 2823 // ins_encode( encode_class_name(parameter_list), ... ); | |
| 2824 // | |
| 2825 // The "encode_class_name" must be defined in the encode section | |
| 2826 // The parameter list contains $names that are locals. | |
| 2827 // | |
| 2828 // Alternatively it can be written like this: | |
| 2829 // | |
| 2830 // ins_encode %{ | |
| 2831 // ... // body | |
| 2832 // %} | |
| 2833 // | |
| 2834 // which synthesizes a new encoding class taking the same arguments as | |
| 2835 // the InstructForm, and automatically prefixes the definition with: | |
| 2836 // | |
| 2837 // MacroAssembler masm(&cbuf);\n"); | |
| 2838 // | |
| 2839 // making it more compact to take advantage of the MacroAssembler and | |
| 2840 // placing the assembly closer to it's use by instructions. | |
| 2841 InsEncode *ADLParser::ins_encode_parse(InstructForm &inst) { | |
| 2842 | |
| 2843 // Parse encode class name | |
| 2844 skipws(); // Skip whitespace | |
| 2845 if (_curchar != '(') { | |
| 2846 // Check for ins_encode %{ form | |
| 2847 if ((_curchar == '%') && (*(_ptr+1) == '{')) { | |
| 2848 next_char(); // Skip '%' | |
| 2849 next_char(); // Skip '{' | |
| 2850 | |
| 2851 // Parse the block form of ins_encode | |
| 2852 return ins_encode_parse_block(inst); | |
| 2853 } | |
| 2854 | |
| 2855 parse_err(SYNERR, "missing '%%{' or '(' in ins_encode definition\n"); | |
| 2856 return NULL; | |
| 2857 } | |
| 2858 next_char(); // move past '(' | |
| 2859 skipws(); | |
| 2860 | |
| 2861 InsEncode *encrule = new InsEncode(); // Encode class for instruction | |
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2862 encrule->_linenum = linenum(); |
| 0 | 2863 char *ec_name = NULL; // String representation of encode rule |
| 2864 // identifier is optional. | |
| 2865 while (_curchar != ')') { | |
| 2866 ec_name = get_ident(); | |
| 2867 if (ec_name == NULL) { | |
| 2868 parse_err(SYNERR, "Invalid encode class name after 'ins_encode('.\n"); | |
| 2869 return NULL; | |
| 2870 } | |
| 2871 // Check that encoding is defined in the encode section | |
| 2872 EncClass *encode_class = _AD._encode->encClass(ec_name); | |
| 2873 if (encode_class == NULL) { | |
| 2874 // Like to defer checking these till later... | |
| 2875 // parse_err(WARN, "Using an undefined encode class '%s' in 'ins_encode'.\n", ec_name); | |
| 2876 } | |
| 2877 | |
| 2878 // Get list for encode method's parameters | |
| 2879 NameAndList *params = encrule->add_encode(ec_name); | |
| 2880 | |
| 2881 // Parse the parameters to this encode method. | |
| 2882 skipws(); | |
| 2883 if ( _curchar == '(' ) { | |
| 2884 next_char(); // move past '(' for parameters | |
| 2885 | |
| 2886 // Parse the encode method's parameters | |
| 2887 while (_curchar != ')') { | |
| 2888 char *param = get_ident_or_literal_constant("encoding operand"); | |
| 2889 if ( param != NULL ) { | |
| 2890 // Found a parameter: | |
| 2891 // Check it is a local name, add it to the list, then check for more | |
| 2892 // New: allow hex constants as parameters to an encode method. | |
| 2893 // New: allow parenthesized expressions as parameters. | |
| 2894 // New: allow "primary", "secondary", "tertiary" as parameters. | |
| 2895 // New: allow user-defined register name as parameter | |
| 2896 if ( (inst._localNames[param] == NULL) && | |
| 2897 !ADLParser::is_literal_constant(param) && | |
| 2898 (Opcode::as_opcode_type(param) == Opcode::NOT_AN_OPCODE) && | |
| 2899 ((_AD._register == NULL ) || (_AD._register->getRegDef(param) == NULL)) ) { | |
| 2900 parse_err(SYNERR, "Using non-locally defined parameter %s for encoding %s.\n", param, ec_name); | |
| 2901 return NULL; | |
| 2902 } | |
| 2903 params->add_entry(param); | |
| 2904 | |
| 2905 skipws(); | |
| 2906 if (_curchar == ',' ) { | |
| 2907 // More parameters to come | |
| 2908 next_char(); // move past ',' between parameters | |
| 2909 skipws(); // Skip to next parameter | |
| 2910 } | |
| 2911 else if (_curchar == ')') { | |
| 2912 // Done with parameter list | |
| 2913 } | |
| 2914 else { | |
| 2915 // Only ',' or ')' are valid after a parameter name | |
| 2916 parse_err(SYNERR, "expected ',' or ')' after parameter %s.\n", | |
| 2917 ec_name); | |
| 2918 return NULL; | |
| 2919 } | |
| 2920 | |
| 2921 } else { | |
| 2922 skipws(); | |
| 2923 // Did not find a parameter | |
| 2924 if (_curchar == ',') { | |
| 2925 parse_err(SYNERR, "Expected encode parameter before ',' in encoding %s.\n", ec_name); | |
| 2926 return NULL; | |
| 2927 } | |
| 2928 if (_curchar != ')') { | |
| 2929 parse_err(SYNERR, "Expected ')' after encode parameters.\n"); | |
| 2930 return NULL; | |
| 2931 } | |
| 2932 } | |
| 2933 } // WHILE loop collecting parameters | |
| 2934 next_char(); // move past ')' at end of parameters | |
| 2935 } // done with parameter list for encoding | |
| 2936 | |
| 2937 // Check for ',' or ')' after encoding | |
| 2938 skipws(); // move to character after parameters | |
| 2939 if ( _curchar == ',' ) { | |
| 2940 // Found a ',' | |
| 2941 next_char(); // move past ',' between encode methods | |
| 2942 skipws(); | |
| 2943 } | |
| 2944 else if ( _curchar != ')' ) { | |
| 2945 // If not a ',' then only a ')' is allowed | |
| 2946 parse_err(SYNERR, "Expected ')' after encoding %s.\n", ec_name); | |
| 2947 return NULL; | |
| 2948 } | |
| 2949 | |
| 2950 // Check for ',' separating parameters | |
| 2951 // if ( _curchar != ',' && _curchar != ')' ) { | |
| 2952 // parse_err(SYNERR, "expected ',' or ')' after encode method inside ins_encode.\n"); | |
| 2953 // return NULL; | |
| 2954 // } | |
| 2955 | |
| 2956 } // done parsing ins_encode methods and their parameters | |
| 2957 if (_curchar != ')') { | |
| 2958 parse_err(SYNERR, "Missing ')' at end of ins_encode description.\n"); | |
| 2959 return NULL; | |
| 2960 } | |
| 2961 next_char(); // move past ')' | |
| 2962 skipws(); // Skip leading whitespace | |
| 2963 | |
| 2964 if ( _curchar != ';' ) { | |
| 2965 parse_err(SYNERR, "Missing ';' at end of ins_encode.\n"); | |
| 2966 return NULL; | |
| 2967 } | |
| 2968 next_char(); // move past ';' | |
| 2969 skipws(); // be friendly to oper_parse() | |
| 2970 | |
| 2971 // Debug Stuff | |
| 2972 if (_AD._adl_debug > 1) fprintf(stderr,"Instruction Encode: %s\n", ec_name); | |
| 2973 | |
| 2974 return encrule; | |
| 2975 } | |
| 2976 | |
| 2977 | |
| 2978 //------------------------------size_parse----------------------------------- | |
| 2979 char* ADLParser::size_parse(InstructForm *instr) { | |
| 2980 char* sizeOfInstr = NULL; | |
| 2981 | |
| 2982 // Get value of the instruction's size | |
| 2983 skipws(); | |
| 2984 | |
| 2985 // Parse size | |
| 2986 sizeOfInstr = get_paren_expr("size expression"); | |
| 2987 if (sizeOfInstr == NULL) { | |
| 2988 parse_err(SYNERR, "size of opcode expected at %c\n", _curchar); | |
| 2989 return NULL; | |
| 2990 } | |
| 2991 | |
| 2992 skipws(); | |
| 2993 | |
| 2994 // Check for terminator | |
| 2995 if (_curchar != ';') { | |
| 2996 parse_err(SYNERR, "missing ';' in ins_attrib definition\n"); | |
| 2997 return NULL; | |
| 2998 } | |
| 2999 next_char(); // Advance past the ';' | |
| 3000 skipws(); // necessary for instr_parse() | |
| 3001 | |
| 3002 // Debug Stuff | |
| 3003 if (_AD._adl_debug > 1) { | |
| 3004 if (sizeOfInstr != NULL) { | |
| 3005 fprintf(stderr,"size of opcode: %s\n", sizeOfInstr); | |
| 3006 } | |
| 3007 } | |
| 3008 | |
| 3009 return sizeOfInstr; | |
| 3010 } | |
| 3011 | |
| 3012 | |
| 3013 //------------------------------opcode_parse----------------------------------- | |
| 3014 Opcode * ADLParser::opcode_parse(InstructForm *instr) { | |
| 3015 char *primary = NULL; | |
| 3016 char *secondary = NULL; | |
| 3017 char *tertiary = NULL; | |
| 3018 | |
| 3019 char *val = NULL; | |
| 3020 Opcode *opcode = NULL; | |
| 3021 | |
| 3022 // Get value of the instruction's opcode | |
| 3023 skipws(); | |
| 3024 if (_curchar != '(') { // Check for parenthesized operand list | |
| 3025 parse_err(SYNERR, "missing '(' in expand instruction declaration\n"); | |
| 3026 return NULL; | |
| 3027 } | |
| 3028 next_char(); // skip open paren | |
| 3029 skipws(); | |
| 3030 if (_curchar != ')') { | |
| 3031 // Parse primary, secondary, and tertiary opcodes, if provided. | |
| 3032 if ( ((primary = get_ident_or_literal_constant("primary opcode")) == NULL) ) { | |
| 3033 parse_err(SYNERR, "primary hex opcode expected at %c\n", _curchar); | |
| 3034 return NULL; | |
| 3035 } | |
| 3036 skipws(); | |
| 3037 if (_curchar == ',') { | |
| 3038 next_char(); | |
| 3039 skipws(); | |
| 3040 // Parse secondary opcode | |
| 3041 if ( ((secondary = get_ident_or_literal_constant("secondary opcode")) == NULL) ) { | |
| 3042 parse_err(SYNERR, "secondary hex opcode expected at %c\n", _curchar); | |
| 3043 return NULL; | |
| 3044 } | |
| 3045 skipws(); | |
| 3046 if (_curchar == ',') { | |
| 3047 next_char(); | |
| 3048 skipws(); | |
| 3049 // Parse tertiary opcode | |
| 3050 if ( ((tertiary = get_ident_or_literal_constant("tertiary opcode")) == NULL) ) { | |
| 3051 parse_err(SYNERR,"tertiary hex opcode expected at %c\n", _curchar); | |
| 3052 return NULL; | |
| 3053 } | |
| 3054 skipws(); | |
| 3055 } | |
| 3056 } | |
| 3057 skipws(); | |
| 3058 if (_curchar != ')') { | |
| 3059 parse_err(SYNERR, "Missing ')' in opcode description\n"); | |
| 3060 return NULL; | |
| 3061 } | |
| 3062 } | |
| 3063 next_char(); // Skip ')' | |
| 3064 skipws(); | |
| 3065 // Check for terminator | |
| 3066 if (_curchar != ';') { | |
| 3067 parse_err(SYNERR, "missing ';' in ins_attrib definition\n"); | |
| 3068 return NULL; | |
| 3069 } | |
| 3070 next_char(); // Advance past the ';' | |
| 3071 skipws(); // necessary for instr_parse() | |
| 3072 | |
| 3073 // Debug Stuff | |
| 3074 if (_AD._adl_debug > 1) { | |
| 3075 if (primary != NULL) fprintf(stderr,"primary opcode: %s\n", primary); | |
| 3076 if (secondary != NULL) fprintf(stderr,"secondary opcode: %s\n", secondary); | |
| 3077 if (tertiary != NULL) fprintf(stderr,"tertiary opcode: %s\n", tertiary); | |
| 3078 } | |
| 3079 | |
| 3080 // Generate new object and return | |
| 3081 opcode = new Opcode(primary, secondary, tertiary); | |
| 3082 return opcode; | |
| 3083 } | |
| 3084 | |
| 3085 | |
| 3086 //------------------------------interface_parse-------------------------------- | |
| 3087 Interface *ADLParser::interface_parse(void) { | |
| 3088 char *iface_name = NULL; // Name of interface class being used | |
| 3089 char *iface_code = NULL; // Describe components of this class | |
| 3090 | |
| 3091 // Get interface class name | |
| 3092 skipws(); // Skip whitespace | |
| 3093 if (_curchar != '(') { | |
| 3094 parse_err(SYNERR, "Missing '(' at start of interface description.\n"); | |
| 3095 return NULL; | |
| 3096 } | |
| 3097 next_char(); // move past '(' | |
| 3098 skipws(); | |
| 3099 iface_name = get_ident(); | |
| 3100 if (iface_name == NULL) { | |
| 3101 parse_err(SYNERR, "missing interface name after 'interface'.\n"); | |
| 3102 return NULL; | |
| 3103 } | |
| 3104 skipws(); | |
| 3105 if (_curchar != ')') { | |
| 3106 parse_err(SYNERR, "Missing ')' after name of interface.\n"); | |
| 3107 return NULL; | |
| 3108 } | |
| 3109 next_char(); // move past ')' | |
| 3110 | |
| 3111 // Get details of the interface, | |
| 3112 // for the type of interface indicated by iface_name. | |
| 3113 Interface *inter = NULL; | |
| 3114 skipws(); | |
| 3115 if ( _curchar != ';' ) { | |
| 3116 if ( strcmp(iface_name,"MEMORY_INTER") == 0 ) { | |
| 3117 inter = mem_interface_parse(); | |
| 3118 } | |
| 3119 else if ( strcmp(iface_name,"COND_INTER") == 0 ) { | |
| 3120 inter = cond_interface_parse(); | |
| 3121 } | |
| 3122 // The parse routines consume the "%}" | |
| 3123 | |
| 3124 // Check for probable extra ';' after defining block. | |
| 3125 if ( _curchar == ';' ) { | |
| 3126 parse_err(SYNERR, "Extra ';' after defining interface block.\n"); | |
| 3127 next_char(); // Skip ';' | |
| 3128 return NULL; | |
| 3129 } | |
| 3130 } else { | |
| 3131 next_char(); // move past ';' | |
| 3132 | |
| 3133 // Create appropriate interface object | |
| 3134 if ( strcmp(iface_name,"REG_INTER") == 0 ) { | |
| 3135 inter = new RegInterface(); | |
| 3136 } | |
| 3137 else if ( strcmp(iface_name,"CONST_INTER") == 0 ) { | |
| 3138 inter = new ConstInterface(); | |
| 3139 } | |
| 3140 } | |
| 3141 skipws(); // be friendly to oper_parse() | |
| 3142 // Debug Stuff | |
| 3143 if (_AD._adl_debug > 1) fprintf(stderr,"Interface Form: %s\n", iface_name); | |
| 3144 | |
| 3145 // Create appropriate interface object and return. | |
| 3146 return inter; | |
| 3147 } | |
| 3148 | |
| 3149 | |
| 3150 //------------------------------mem_interface_parse---------------------------- | |
| 3151 Interface *ADLParser::mem_interface_parse(void) { | |
| 3152 // Fields for MemInterface | |
| 3153 char *base = NULL; | |
| 3154 char *index = NULL; | |
| 3155 char *scale = NULL; | |
| 3156 char *disp = NULL; | |
| 3157 | |
| 3158 if (_curchar != '%') { | |
| 3159 parse_err(SYNERR, "Missing '%{' for 'interface' block.\n"); | |
| 3160 return NULL; | |
| 3161 } | |
| 3162 next_char(); // Skip '%' | |
| 3163 if (_curchar != '{') { | |
| 3164 parse_err(SYNERR, "Missing '%{' for 'interface' block.\n"); | |
| 3165 return NULL; | |
| 3166 } | |
| 3167 next_char(); // Skip '{' | |
| 3168 skipws(); | |
| 3169 do { | |
| 3170 char *field = get_ident(); | |
| 3171 if (field == NULL) { | |
| 3172 parse_err(SYNERR, "Expected keyword, base|index|scale|disp, or '%}' ending interface.\n"); | |
| 3173 return NULL; | |
| 3174 } | |
| 3175 if ( strcmp(field,"base") == 0 ) { | |
| 3176 base = interface_field_parse(); | |
| 3177 } | |
| 3178 else if ( strcmp(field,"index") == 0 ) { | |
| 3179 index = interface_field_parse(); | |
| 3180 } | |
| 3181 else if ( strcmp(field,"scale") == 0 ) { | |
| 3182 scale = interface_field_parse(); | |
| 3183 } | |
| 3184 else if ( strcmp(field,"disp") == 0 ) { | |
| 3185 disp = interface_field_parse(); | |
| 3186 } | |
| 3187 else { | |
| 3188 parse_err(SYNERR, "Expected keyword, base|index|scale|disp, or '%}' ending interface.\n"); | |
| 3189 return NULL; | |
| 3190 } | |
| 3191 } while( _curchar != '%' ); | |
| 3192 next_char(); // Skip '%' | |
| 3193 if ( _curchar != '}' ) { | |
| 3194 parse_err(SYNERR, "Missing '%}' for 'interface' block.\n"); | |
| 3195 return NULL; | |
| 3196 } | |
| 3197 next_char(); // Skip '}' | |
| 3198 | |
| 3199 // Construct desired object and return | |
| 3200 Interface *inter = new MemInterface(base, index, scale, disp); | |
| 3201 return inter; | |
| 3202 } | |
| 3203 | |
| 3204 | |
| 3205 //------------------------------cond_interface_parse--------------------------- | |
| 3206 Interface *ADLParser::cond_interface_parse(void) { | |
| 3207 char *equal; | |
| 3208 char *not_equal; | |
| 3209 char *less; | |
| 3210 char *greater_equal; | |
| 3211 char *less_equal; | |
| 3212 char *greater; | |
|
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3213 const char *equal_format = "eq"; |
|
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3214 const char *not_equal_format = "ne"; |
|
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3215 const char *less_format = "lt"; |
|
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3216 const char *greater_equal_format = "ge"; |
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3217 const char *less_equal_format = "le"; |
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|
3218 const char *greater_format = "gt"; |
| 0 | 3219 |
| 3220 if (_curchar != '%') { | |
| 3221 parse_err(SYNERR, "Missing '%{' for 'cond_interface' block.\n"); | |
| 3222 return NULL; | |
| 3223 } | |
| 3224 next_char(); // Skip '%' | |
| 3225 if (_curchar != '{') { | |
| 3226 parse_err(SYNERR, "Missing '%{' for 'cond_interface' block.\n"); | |
| 3227 return NULL; | |
| 3228 } | |
| 3229 next_char(); // Skip '{' | |
| 3230 skipws(); | |
| 3231 do { | |
| 3232 char *field = get_ident(); | |
| 3233 if (field == NULL) { | |
| 3234 parse_err(SYNERR, "Expected keyword, base|index|scale|disp, or '%}' ending interface.\n"); | |
| 3235 return NULL; | |
| 3236 } | |
| 3237 if ( strcmp(field,"equal") == 0 ) { | |
|
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|
3238 equal = interface_field_parse(&equal_format); |
| 0 | 3239 } |
| 3240 else if ( strcmp(field,"not_equal") == 0 ) { | |
|
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3241 not_equal = interface_field_parse(¬_equal_format); |
| 0 | 3242 } |
| 3243 else if ( strcmp(field,"less") == 0 ) { | |
|
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3244 less = interface_field_parse(&less_format); |
| 0 | 3245 } |
| 3246 else if ( strcmp(field,"greater_equal") == 0 ) { | |
|
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3247 greater_equal = interface_field_parse(&greater_equal_format); |
| 0 | 3248 } |
| 3249 else if ( strcmp(field,"less_equal") == 0 ) { | |
|
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3250 less_equal = interface_field_parse(&less_equal_format); |
| 0 | 3251 } |
| 3252 else if ( strcmp(field,"greater") == 0 ) { | |
|
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|
3253 greater = interface_field_parse(&greater_format); |
| 0 | 3254 } |
| 3255 else { | |
| 3256 parse_err(SYNERR, "Expected keyword, base|index|scale|disp, or '%}' ending interface.\n"); | |
| 3257 return NULL; | |
| 3258 } | |
| 3259 } while( _curchar != '%' ); | |
| 3260 next_char(); // Skip '%' | |
| 3261 if ( _curchar != '}' ) { | |
| 3262 parse_err(SYNERR, "Missing '%}' for 'interface' block.\n"); | |
| 3263 return NULL; | |
| 3264 } | |
| 3265 next_char(); // Skip '}' | |
| 3266 | |
| 3267 // Construct desired object and return | |
|
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3268 Interface *inter = new CondInterface(equal, equal_format, |
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|
3269 not_equal, not_equal_format, |
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3270 less, less_format, |
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3271 greater_equal, greater_equal_format, |
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|
3272 less_equal, less_equal_format, |
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|
3273 greater, greater_format); |
| 0 | 3274 return inter; |
| 3275 } | |
| 3276 | |
| 3277 | |
| 3278 //------------------------------interface_field_parse-------------------------- | |
|
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3279 char *ADLParser::interface_field_parse(const char ** format) { |
| 0 | 3280 char *iface_field = NULL; |
| 3281 | |
| 3282 // Get interface field | |
| 3283 skipws(); // Skip whitespace | |
| 3284 if (_curchar != '(') { | |
| 3285 parse_err(SYNERR, "Missing '(' at start of interface field.\n"); | |
| 3286 return NULL; | |
| 3287 } | |
| 3288 next_char(); // move past '(' | |
| 3289 skipws(); | |
| 3290 if ( _curchar != '0' && _curchar != '$' ) { | |
| 3291 parse_err(SYNERR, "missing or invalid interface field contents.\n"); | |
| 3292 return NULL; | |
| 3293 } | |
| 3294 iface_field = get_rep_var_ident(); | |
| 3295 if (iface_field == NULL) { | |
| 3296 parse_err(SYNERR, "missing or invalid interface field contents.\n"); | |
| 3297 return NULL; | |
| 3298 } | |
| 3299 skipws(); | |
|
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3300 if (format != NULL && _curchar == ',') { |
|
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|
3301 next_char(); |
|
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|
3302 skipws(); |
|
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|
3303 if (_curchar != '"') { |
|
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3304 parse_err(SYNERR, "Missing '\"' in field format .\n"); |
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|
3305 return NULL; |
|
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|
3306 } |
|
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|
3307 next_char(); |
|
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|
3308 char *start = _ptr; // Record start of the next string |
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3309 while ((_curchar != '"') && (_curchar != '%') && (_curchar != '\n')) { |
|
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|
3310 if (_curchar == '\\') next_char(); // superquote |
|
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|
3311 if (_curchar == '\n') parse_err(SYNERR, "newline in string"); // unimplemented! |
|
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|
3312 next_char(); |
|
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|
3313 } |
|
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|
3314 if (_curchar != '"') { |
|
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|
3315 parse_err(SYNERR, "Missing '\"' at end of field format .\n"); |
|
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|
3316 return NULL; |
|
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|
3317 } |
|
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|
3318 // If a string was found, terminate it and record in FormatRule |
|
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3319 if ( start != _ptr ) { |
|
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3320 *_ptr = '\0'; // Terminate the string |
|
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|
3321 *format = start; |
|
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|
3322 } |
|
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|
3323 next_char(); |
|
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|
3324 skipws(); |
|
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|
3325 } |
| 0 | 3326 if (_curchar != ')') { |
| 3327 parse_err(SYNERR, "Missing ')' after interface field.\n"); | |
| 3328 return NULL; | |
| 3329 } | |
| 3330 next_char(); // move past ')' | |
| 3331 skipws(); | |
| 3332 if ( _curchar != ';' ) { | |
| 3333 parse_err(SYNERR, "Missing ';' at end of interface field.\n"); | |
| 3334 return NULL; | |
| 3335 } | |
| 3336 next_char(); // move past ';' | |
| 3337 skipws(); // be friendly to interface_parse() | |
| 3338 | |
| 3339 return iface_field; | |
| 3340 } | |
| 3341 | |
| 3342 | |
| 3343 //------------------------------match_parse------------------------------------ | |
| 3344 MatchRule *ADLParser::match_parse(FormDict &operands) { | |
| 3345 MatchRule *match; // Match Rule class for instruction/operand | |
| 3346 char *cnstr = NULL; // Code for constructor | |
| 3347 int depth = 0; // Counter for matching parentheses | |
| 3348 int numleaves = 0; // Counter for number of leaves in rule | |
| 3349 | |
| 3350 // Parse the match rule tree | |
| 3351 MatchNode *mnode = matchNode_parse(operands, depth, numleaves, true); | |
| 3352 | |
| 3353 // Either there is a block with a constructor, or a ';' here | |
| 3354 skipws(); // Skip whitespace | |
| 3355 if ( _curchar == ';' ) { // Semicolon is valid terminator | |
| 3356 cnstr = NULL; // no constructor for this form | |
| 3357 next_char(); // Move past the ';', replaced with '\0' | |
| 3358 } | |
| 3359 else if ((cnstr = find_cpp_block("match constructor")) == NULL ) { | |
| 3360 parse_err(SYNERR, "invalid construction of match rule\n" | |
| 3361 "Missing ';' or invalid '%{' and '%}' constructor\n"); | |
| 3362 return NULL; // No MatchRule to return | |
| 3363 } | |
| 3364 if (_AD._adl_debug > 1) | |
| 3365 if (cnstr) fprintf(stderr,"Match Constructor: %s\n", cnstr); | |
| 3366 // Build new MatchRule object | |
| 3367 match = new MatchRule(_AD, mnode, depth, cnstr, numleaves); | |
| 3368 skipws(); // Skip any trailing whitespace | |
| 3369 return match; // Return MatchRule object | |
| 3370 } | |
| 3371 | |
| 3372 //------------------------------format_parse----------------------------------- | |
| 3373 FormatRule* ADLParser::format_parse(void) { | |
| 3374 char *desc = NULL; | |
| 3375 FormatRule *format = (new FormatRule(desc)); | |
| 3376 | |
| 3377 // Without expression form, MUST have a code block; | |
| 3378 skipws(); // Skip whitespace | |
| 3379 if ( _curchar == ';' ) { // Semicolon is valid terminator | |
| 3380 desc = NULL; // no constructor for this form | |
| 3381 next_char(); // Move past the ';', replaced with '\0' | |
| 3382 } | |
| 3383 else if ( _curchar == '%' && *(_ptr+1) == '{') { | |
| 3384 next_char(); // Move past the '%' | |
| 3385 next_char(); // Move past the '{' | |
| 3386 | |
| 3387 skipws(); | |
|
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|
3388 if (_curchar == '$') { |
|
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|
3389 char* ident = get_rep_var_ident(); |
|
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|
3390 if (strcmp(ident, "$$template") == 0) return template_parse(); |
|
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|
3391 parse_err(SYNERR, "Unknown \"%s\" directive in format", ident); |
|
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|
3392 return NULL; |
|
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|
3393 } |
| 0 | 3394 // Check for the opening '"' inside the format description |
| 3395 if ( _curchar == '"' ) { | |
| 3396 next_char(); // Move past the initial '"' | |
| 3397 if( _curchar == '"' ) { // Handle empty format string case | |
| 3398 *_ptr = '\0'; // Terminate empty string | |
| 3399 format->_strings.addName(_ptr); | |
| 3400 } | |
| 3401 | |
| 3402 // Collect the parts of the format description | |
| 3403 // (1) strings that are passed through to tty->print | |
| 3404 // (2) replacement/substitution variable, preceeded by a '$' | |
| 3405 // (3) multi-token ANSIY C style strings | |
| 3406 while ( true ) { | |
| 3407 if ( _curchar == '%' || _curchar == '\n' ) { | |
| 3408 if ( _curchar != '"' ) { | |
| 3409 parse_err(SYNERR, "missing '\"' at end of format block"); | |
| 3410 return NULL; | |
| 3411 } | |
| 3412 } | |
| 3413 | |
| 3414 // (1) | |
| 3415 // Check if there is a string to pass through to output | |
| 3416 char *start = _ptr; // Record start of the next string | |
| 3417 while ((_curchar != '$') && (_curchar != '"') && (_curchar != '%') && (_curchar != '\n')) { | |
|
475
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|
3418 if (_curchar == '\\') { |
|
284d0af00d53
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jrose
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|
3419 next_char(); // superquote |
|
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|
3420 if ((_curchar == '$') || (_curchar == '%')) |
|
284d0af00d53
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|
3421 // hack to avoid % escapes and warnings about undefined \ escapes |
|
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|
3422 *(_ptr-1) = _curchar; |
|
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|
3423 } |
| 0 | 3424 if (_curchar == '\n') parse_err(SYNERR, "newline in string"); // unimplemented! |
| 3425 next_char(); | |
| 3426 } | |
| 3427 // If a string was found, terminate it and record in FormatRule | |
| 3428 if ( start != _ptr ) { | |
| 3429 *_ptr = '\0'; // Terminate the string | |
| 3430 format->_strings.addName(start); | |
| 3431 } | |
| 3432 | |
| 3433 // (2) | |
| 3434 // If we are at a replacement variable, | |
| 3435 // copy it and record in FormatRule | |
| 3436 if ( _curchar == '$' ) { | |
| 3437 next_char(); // Move past the '$' | |
| 3438 char* rep_var = get_ident(); // Nil terminate the variable name | |
| 3439 rep_var = strdup(rep_var);// Copy the string | |
| 3440 *_ptr = _curchar; // and replace Nil with original character | |
| 3441 format->_rep_vars.addName(rep_var); | |
| 3442 // Add flag to _strings list indicating we should check _rep_vars | |
| 3443 format->_strings.addName(NameList::_signal); | |
| 3444 } | |
| 3445 | |
| 3446 // (3) | |
| 3447 // Allow very long strings to be broken up, | |
| 3448 // using the ANSI C syntax "foo\n" <newline> "bar" | |
| 3449 if ( _curchar == '"') { | |
| 3450 next_char(); // Move past the '"' | |
| 3451 skipws(); // Skip white space before next string token | |
| 3452 if ( _curchar != '"') { | |
| 3453 break; | |
| 3454 } else { | |
| 3455 // Found one. Skip both " and the whitespace in between. | |
| 3456 next_char(); | |
| 3457 } | |
| 3458 } | |
| 3459 } // end while part of format description | |
| 3460 | |
| 3461 // Check for closing '"' and '%}' in format description | |
| 3462 skipws(); // Move to closing '%}' | |
| 3463 if ( _curchar != '%' ) { | |
| 3464 parse_err(SYNERR, "non-blank characters between closing '\"' and '%' in format"); | |
| 3465 return NULL; | |
| 3466 } | |
| 3467 } // Done with format description inside | |
| 3468 | |
| 3469 skipws(); | |
| 3470 // Past format description, at '%' | |
| 3471 if ( _curchar != '%' || *(_ptr+1) != '}' ) { | |
| 3472 parse_err(SYNERR, "missing '%}' at end of format block"); | |
| 3473 return NULL; | |
| 3474 } | |
| 3475 next_char(); // Move past the '%' | |
| 3476 next_char(); // Move past the '}' | |
| 3477 } | |
| 3478 else { // parameter list alone must terminate with a ';' | |
| 3479 parse_err(SYNERR, "missing ';' after Format expression"); | |
| 3480 return NULL; | |
| 3481 } | |
| 3482 // Debug Stuff | |
| 3483 if (_AD._adl_debug > 1) fprintf(stderr,"Format Rule: %s\n", desc); | |
| 3484 | |
| 3485 skipws(); | |
| 3486 return format; | |
| 3487 } | |
| 3488 | |
| 3489 | |
|
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|
3490 //------------------------------template_parse----------------------------------- |
|
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|
3491 FormatRule* ADLParser::template_parse(void) { |
|
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|
3492 char *desc = NULL; |
|
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|
3493 FormatRule *format = (new FormatRule(desc)); |
|
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|
3494 |
|
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|
3495 skipws(); |
|
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|
3496 while ( (_curchar != '%') && (*(_ptr+1) != '}') ) { |
|
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|
3497 |
|
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|
3498 // (1) |
|
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|
3499 // 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
|
3500 { |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3501 char *start = _ptr; // Record start of the next string |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3502 while ((_curchar != '$') && ((_curchar != '%') || (*(_ptr+1) != '}')) ) { |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3503 // If at the start of a comment, skip past it |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3504 if( (_curchar == '/') && ((*(_ptr+1) == '/') || (*(_ptr+1) == '*')) ) { |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3505 skipws_no_preproc(); |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3506 } else { |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3507 // 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
|
3508 next_char_or_line(); |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3509 } |
|
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3510 } |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3511 // 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
|
3512 if ( start != _ptr ) { |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3513 *_ptr = '\0'; // Terminate the string |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3514 // 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
|
3515 format->_strings.addName(NameList::_signal2); |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3516 format->_strings.addName(start); |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3517 } |
|
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3518 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3519 |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3520 // (2) |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3521 // 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
|
3522 // 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
|
3523 if ( _curchar == '$' ) { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3524 // 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
|
3525 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
|
3526 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
|
3527 // 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
|
3528 next_char(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3529 next_char(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3530 skipws(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3531 // 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
|
3532 if ( _curchar == '"' ) { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3533 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
|
3534 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
|
3535 *_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
|
3536 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
|
3537 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3538 |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3539 // 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
|
3540 // (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
|
3541 // (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
|
3542 // (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
|
3543 while ( true ) { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3544 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
|
3545 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
|
3546 return NULL; |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3547 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3548 |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3549 // (1) |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3550 // 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
|
3551 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
|
3552 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
|
3553 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
|
3554 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
|
3555 next_char(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3556 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3557 // 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
|
3558 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
|
3559 *_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
|
3560 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
|
3561 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3562 |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3563 // (2) |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3564 // 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
|
3565 // 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
|
3566 if ( _curchar == '$' ) { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3567 next_char(); // Move past the '$' |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3568 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
|
3569 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
|
3570 *_ptr = _curchar; // and replace Nil with original character |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3571 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
|
3572 // 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
|
3573 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
|
3574 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3575 |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3576 // (3) |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3577 // 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
|
3578 // 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
|
3579 if ( _curchar == '"') { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3580 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
|
3581 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
|
3582 if ( _curchar != '"') { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3583 break; |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3584 } else { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3585 // 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
|
3586 next_char(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3587 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3588 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3589 } // 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
|
3590 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3591 } else { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3592 // 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
|
3593 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
|
3594 // 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
|
3595 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
|
3596 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3597 } // 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
|
3598 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3599 |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3600 skipws(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3601 // 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
|
3602 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
|
3603 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
|
3604 return NULL; |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3605 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3606 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
|
3607 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
|
3608 |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3609 // Debug Stuff |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3610 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
|
3611 |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3612 skipws(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3613 return format; |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3614 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3615 |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3616 |
| 0 | 3617 //------------------------------effect_parse----------------------------------- |
| 3618 void ADLParser::effect_parse(InstructForm *instr) { | |
| 3619 char* desc = NULL; | |
| 3620 | |
| 3621 skipws(); // Skip whitespace | |
| 3622 if (_curchar != '(') { | |
| 3623 parse_err(SYNERR, "missing '(' in effect definition\n"); | |
| 3624 return; | |
| 3625 } | |
| 3626 // Get list of effect-operand pairs and insert into dictionary | |
| 3627 else get_effectlist(instr->_effects, instr->_localNames); | |
| 3628 | |
| 3629 // Debug Stuff | |
| 3630 if (_AD._adl_debug > 1) fprintf(stderr,"Effect description: %s\n", desc); | |
| 3631 if (_curchar != ';') { | |
| 3632 parse_err(SYNERR, "missing ';' in Effect definition\n"); | |
| 3633 } | |
| 3634 next_char(); // Skip ';' | |
| 3635 | |
| 3636 } | |
| 3637 | |
| 3638 //------------------------------expand_parse----------------------------------- | |
| 3639 ExpandRule* ADLParser::expand_parse(InstructForm *instr) { | |
| 3640 char *ident, *ident2; | |
| 3641 OperandForm *oper; | |
| 3642 InstructForm *ins; | |
| 3643 NameAndList *instr_and_operands = NULL; | |
| 3644 ExpandRule *exp = new ExpandRule(); | |
| 3645 | |
| 3646 // Expand is a block containing an ordered list of instructions, each of | |
| 3647 // which has an ordered list of operands. | |
| 3648 // Check for block delimiter | |
| 3649 skipws(); // Skip leading whitespace | |
| 3650 if ((_curchar != '%') | |
| 3651 || (next_char(), (_curchar != '{')) ) { // If not open block | |
| 3652 parse_err(SYNERR, "missing '%{' in expand definition\n"); | |
| 3653 return(NULL); | |
| 3654 } | |
| 3655 next_char(); // Maintain the invariant | |
| 3656 do { | |
| 3657 ident = get_ident(); // Grab next identifier | |
| 3658 if (ident == NULL) { | |
| 3659 parse_err(SYNERR, "identifier expected at %c\n", _curchar); | |
| 3660 continue; | |
| 3661 } // Check that you have a valid instruction | |
| 3662 const Form *form = _globalNames[ident]; | |
| 3663 ins = form ? form->is_instruction() : NULL; | |
| 3664 if (ins == NULL) { | |
| 3665 // This is a new operand | |
| 3666 oper = form ? form->is_operand() : NULL; | |
| 3667 if (oper == NULL) { | |
| 3668 parse_err(SYNERR, "instruction/operand name expected at %s\n", ident); | |
| 3669 continue; | |
| 3670 } | |
| 3671 // Throw the operand on the _newopers list | |
| 3672 skipws(); | |
| 3673 ident = get_unique_ident(instr->_localNames,"Operand"); | |
| 3674 if (ident == NULL) { | |
| 3675 parse_err(SYNERR, "identifier expected at %c\n", _curchar); | |
| 3676 continue; | |
| 3677 } | |
| 3678 exp->_newopers.addName(ident); | |
| 3679 // Add new operand to LocalNames | |
| 3680 instr->_localNames.Insert(ident, oper); | |
| 3681 // Grab any constructor code and save as a string | |
| 3682 char *c = NULL; | |
| 3683 skipws(); | |
| 3684 if (_curchar == '%') { // Need a constructor for the operand | |
| 3685 c = find_cpp_block("Operand Constructor"); | |
| 3686 if (c == NULL) { | |
| 3687 parse_err(SYNERR, "Invalid code block for operand constructor\n", _curchar); | |
| 3688 continue; | |
| 3689 } | |
| 3690 // Add constructor to _newopconst Dict | |
| 3691 exp->_newopconst.Insert(ident, c); | |
| 3692 } | |
| 3693 else if (_curchar != ';') { // If no constructor, need a ; | |
| 3694 parse_err(SYNERR, "Missing ; in expand rule operand declaration\n"); | |
| 3695 continue; | |
| 3696 } | |
| 3697 else next_char(); // Skip the ; | |
| 3698 skipws(); | |
| 3699 } | |
| 3700 else { | |
| 3701 // Add instruction to list | |
| 3702 instr_and_operands = new NameAndList(ident); | |
| 3703 // Grab operands, build nameList of them, and then put into dictionary | |
| 3704 skipws(); | |
| 3705 if (_curchar != '(') { // Check for parenthesized operand list | |
| 3706 parse_err(SYNERR, "missing '(' in expand instruction declaration\n"); | |
| 3707 continue; | |
| 3708 } | |
| 3709 do { | |
| 3710 next_char(); // skip open paren & comma characters | |
| 3711 skipws(); | |
| 3712 if (_curchar == ')') break; | |
| 3713 ident2 = get_ident(); | |
| 3714 skipws(); | |
| 3715 if (ident2 == NULL) { | |
| 3716 parse_err(SYNERR, "identifier expected at %c\n", _curchar); | |
| 3717 continue; | |
| 3718 } // Check that you have a valid operand | |
|
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3719 const Form *form2 = instr->_localNames[ident2]; |
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3720 if (!form2) { |
| 0 | 3721 parse_err(SYNERR, "operand name expected at %s\n", ident2); |
| 3722 continue; | |
| 3723 } | |
|
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3724 oper = form2->is_operand(); |
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3725 if (oper == NULL && !form2->is_opclass()) { |
| 0 | 3726 parse_err(SYNERR, "operand name expected at %s\n", ident2); |
| 3727 continue; | |
| 3728 } // Add operand to list | |
| 3729 instr_and_operands->add_entry(ident2); | |
| 3730 } while(_curchar == ','); | |
| 3731 if (_curchar != ')') { | |
| 3732 parse_err(SYNERR, "missing ')'in expand instruction declaration\n"); | |
| 3733 continue; | |
| 3734 } | |
| 3735 next_char(); | |
| 3736 if (_curchar != ';') { | |
| 3737 parse_err(SYNERR, "missing ';'in expand instruction declaration\n"); | |
| 3738 continue; | |
| 3739 } | |
| 3740 next_char(); | |
| 3741 | |
| 3742 // Record both instruction name and its operand list | |
| 3743 exp->add_instruction(instr_and_operands); | |
| 3744 | |
| 3745 skipws(); | |
| 3746 } | |
| 3747 | |
| 3748 } while(_curchar != '%'); | |
| 3749 next_char(); | |
| 3750 if (_curchar != '}') { | |
| 3751 parse_err(SYNERR, "missing '%}' in expand rule definition\n"); | |
| 3752 return(NULL); | |
| 3753 } | |
| 3754 next_char(); | |
| 3755 | |
| 3756 // Debug Stuff | |
| 3757 if (_AD._adl_debug > 1) fprintf(stderr,"Expand Rule:\n"); | |
| 3758 | |
| 3759 skipws(); | |
| 3760 return (exp); | |
| 3761 } | |
| 3762 | |
| 3763 //------------------------------rewrite_parse---------------------------------- | |
| 3764 RewriteRule* ADLParser::rewrite_parse(void) { | |
| 3765 char* params = NULL; | |
| 3766 char* desc = NULL; | |
| 3767 | |
| 3768 | |
| 3769 // This feature targeted for second generation description language. | |
| 3770 | |
| 3771 skipws(); // Skip whitespace | |
| 3772 // Get parameters for rewrite | |
| 3773 if ((params = get_paren_expr("rewrite parameters")) == NULL) { | |
| 3774 parse_err(SYNERR, "missing '(' in rewrite rule\n"); | |
| 3775 return NULL; | |
| 3776 } | |
| 3777 // Debug Stuff | |
| 3778 if (_AD._adl_debug > 1) fprintf(stderr,"Rewrite parameters: %s\n", params); | |
| 3779 | |
| 3780 // For now, grab entire block; | |
| 3781 skipws(); | |
| 3782 if ( (desc = find_cpp_block("rewrite block")) == NULL ) { | |
| 3783 parse_err(SYNERR, "incorrect or missing block for 'rewrite'.\n"); | |
| 3784 return NULL; | |
| 3785 } | |
| 3786 // Debug Stuff | |
| 3787 if (_AD._adl_debug > 1) fprintf(stderr,"Rewrite Rule: %s\n", desc); | |
| 3788 | |
| 3789 skipws(); | |
| 3790 return (new RewriteRule(params,desc)); | |
| 3791 } | |
| 3792 | |
| 3793 //------------------------------attr_parse------------------------------------- | |
| 3794 Attribute *ADLParser::attr_parse(char* ident) { | |
| 3795 Attribute *attrib; // Attribute class | |
| 3796 char *cost = NULL; // String representation of cost attribute | |
| 3797 | |
| 3798 skipws(); // Skip leading whitespace | |
| 3799 if ( (cost = get_paren_expr("attribute")) == NULL ) { | |
| 3800 parse_err(SYNERR, "incorrect or missing expression for 'attribute'\n"); | |
| 3801 return NULL; | |
| 3802 } | |
| 3803 // Debug Stuff | |
| 3804 if (_AD._adl_debug > 1) fprintf(stderr,"Attribute: %s\n", cost); | |
| 3805 if (_curchar != ';') { | |
| 3806 parse_err(SYNERR, "missing ';' in attribute definition\n"); | |
| 3807 return NULL; | |
| 3808 } | |
| 3809 next_char(); // Point after the terminator | |
| 3810 | |
| 3811 skipws(); | |
| 3812 attrib = new Attribute(ident,cost,INS_ATTR); // Build new predicate object | |
| 3813 return attrib; | |
| 3814 } | |
| 3815 | |
| 3816 | |
| 3817 //------------------------------matchNode_parse-------------------------------- | |
| 3818 MatchNode *ADLParser::matchNode_parse(FormDict &operands, int &depth, int &numleaves, bool atroot) { | |
| 3819 // Count depth of parenthesis nesting for both left and right children | |
| 3820 int lParens = depth; | |
| 3821 int rParens = depth; | |
| 3822 | |
| 3823 // MatchNode objects for left, right, and root of subtree. | |
| 3824 MatchNode *lChild = NULL; | |
| 3825 MatchNode *rChild = NULL; | |
| 3826 char *token; // Identifier which may be opcode or operand | |
| 3827 | |
| 3828 // Match expression starts with a '(' | |
| 3829 if (cur_char() != '(') | |
| 3830 return NULL; | |
| 3831 | |
| 3832 next_char(); // advance past '(' | |
| 3833 | |
| 3834 // Parse the opcode | |
| 3835 token = get_ident(); // Get identifier, opcode | |
| 3836 if (token == NULL) { | |
| 3837 parse_err(SYNERR, "missing opcode in match expression\n"); | |
| 3838 return NULL; | |
| 3839 } | |
| 3840 | |
| 3841 // Take note if we see one of a few special operations - those that are | |
| 3842 // treated differently on different architectures in the sense that on | |
| 3843 // one architecture there is a match rule and on another there isn't (so | |
| 3844 // a call will eventually be generated). | |
| 3845 | |
| 3846 for (int i = _last_machine_leaf + 1; i < _last_opcode; i++) { | |
| 3847 if (strcmp(token, NodeClassNames[i]) == 0) { | |
| 3848 _AD.has_match_rule(i, true); | |
| 3849 } | |
| 3850 } | |
| 3851 | |
| 3852 // Lookup the root value in the operands dict to perform substitution | |
| 3853 const char *result = NULL; // Result type will be filled in later | |
| 3854 const char *name = token; // local name associated with this node | |
| 3855 const char *operation = token; // remember valid operation for later | |
| 3856 const Form *form = operands[token]; | |
| 3857 OpClassForm *opcForm = form ? form->is_opclass() : NULL; | |
| 3858 if (opcForm != NULL) { | |
| 3859 // If this token is an entry in the local names table, record its type | |
| 3860 if (!opcForm->ideal_only()) { | |
| 3861 operation = opcForm->_ident; | |
| 3862 result = operation; // Operands result in their own type | |
| 3863 } | |
| 3864 // Otherwise it is an ideal type, and so, has no local name | |
| 3865 else name = NULL; | |
| 3866 } | |
| 3867 | |
| 3868 // Parse the operands | |
| 3869 skipws(); | |
| 3870 if (cur_char() != ')') { | |
| 3871 | |
| 3872 // Parse the left child | |
| 3873 if (strcmp(operation,"Set")) | |
| 3874 lChild = matchChild_parse(operands, lParens, numleaves, false); | |
| 3875 else | |
| 3876 lChild = matchChild_parse(operands, lParens, numleaves, true); | |
| 3877 | |
| 3878 skipws(); | |
| 3879 if (cur_char() != ')' ) { | |
| 3880 if(strcmp(operation, "Set")) | |
| 3881 rChild = matchChild_parse(operands,rParens,numleaves,false); | |
| 3882 else | |
| 3883 rChild = matchChild_parse(operands,rParens,numleaves,true); | |
| 3884 } | |
| 3885 } | |
| 3886 | |
| 3887 // Check for required ')' | |
| 3888 skipws(); | |
| 3889 if (cur_char() != ')') { | |
| 3890 parse_err(SYNERR, "missing ')' in match expression\n"); | |
| 3891 return NULL; | |
| 3892 } | |
| 3893 next_char(); // skip the ')' | |
| 3894 | |
| 3895 MatchNode* mroot = new MatchNode(_AD,result,name,operation,lChild,rChild); | |
| 3896 | |
| 3897 // If not the root, reduce this subtree to an internal operand | |
| 3898 if (!atroot) { | |
| 3899 mroot->build_internalop(); | |
| 3900 } | |
| 3901 // depth is greater of left and right paths. | |
| 3902 depth = (lParens > rParens) ? lParens : rParens; | |
| 3903 | |
| 3904 return mroot; | |
| 3905 } | |
| 3906 | |
| 3907 | |
| 3908 //------------------------------matchChild_parse------------------------------- | |
| 3909 MatchNode *ADLParser::matchChild_parse(FormDict &operands, int &parens, int &numleaves, bool atroot) { | |
| 3910 MatchNode *child = NULL; | |
| 3911 const char *result = NULL; | |
| 3912 const char *token = NULL; | |
| 3913 const char *opType = NULL; | |
| 3914 | |
| 3915 if (cur_char() == '(') { // child is an operation | |
| 3916 ++parens; | |
| 3917 child = matchNode_parse(operands, parens, numleaves, atroot); | |
| 3918 } | |
| 3919 else { // child is an operand | |
| 3920 token = get_ident(); | |
| 3921 const Form *form = operands[token]; | |
| 3922 OpClassForm *opcForm = form ? form->is_opclass() : NULL; | |
| 3923 if (opcForm != NULL) { | |
| 3924 opType = opcForm->_ident; | |
| 3925 result = opcForm->_ident; // an operand's result matches its type | |
| 3926 } else { | |
| 3927 parse_err(SYNERR, "undefined operand %s in match rule\n", token); | |
| 3928 return NULL; | |
| 3929 } | |
| 3930 | |
| 3931 if (opType == NULL) { | |
| 3932 parse_err(SYNERR, "missing type for argument '%s'\n", token); | |
| 3933 } | |
| 3934 | |
| 3935 child = new MatchNode(_AD, result, token, opType); | |
| 3936 ++numleaves; | |
| 3937 } | |
| 3938 | |
| 3939 return child; | |
| 3940 } | |
| 3941 | |
| 3942 | |
| 3943 | |
| 3944 // ******************** Private Utility Functions ************************* | |
| 3945 | |
| 3946 | |
| 3947 char* ADLParser::find_cpp_block(const char* description) { | |
| 3948 char *next; // Pointer for finding block delimiters | |
| 3949 char* cppBlock = NULL; // Beginning of C++ code block | |
| 3950 | |
| 3951 if (_curchar == '%') { // Encoding is a C++ expression | |
| 3952 next_char(); | |
| 3953 if (_curchar != '{') { | |
| 3954 parse_err(SYNERR, "missing '{' in %s \n", description); | |
| 3955 return NULL; | |
| 3956 } | |
| 3957 next_char(); // Skip block delimiter | |
| 3958 skipws_no_preproc(); // Skip leading whitespace | |
| 3959 cppBlock = _ptr; // Point to start of expression | |
|
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3960 int line = linenum(); |
| 0 | 3961 next = _ptr + 1; |
| 3962 while(((_curchar != '%') || (*next != '}')) && (_curchar != '\0')) { | |
| 3963 next_char_or_line(); | |
| 3964 next = _ptr+1; // Maintain the next pointer | |
| 3965 } // Grab string | |
| 3966 if (_curchar == '\0') { | |
| 3967 parse_err(SYNERR, "invalid termination of %s \n", description); | |
| 3968 return NULL; | |
| 3969 } | |
| 3970 *_ptr = '\0'; // Terminate string | |
| 3971 _ptr += 2; // Skip block delimiter | |
| 3972 _curchar = *_ptr; // Maintain invariant | |
| 3973 | |
| 3974 // Prepend location descriptor, for debugging. | |
|
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3975 if (_AD._adlocation_debug) { |
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3976 char* location = get_line_string(line); |
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3977 char* end_loc = end_line_marker(); |
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3978 char* result = (char *)malloc(strlen(location) + strlen(cppBlock) + strlen(end_loc) + 1); |
|
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3979 strcpy(result, location); |
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3980 strcat(result, cppBlock); |
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3981 strcat(result, end_loc); |
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3982 cppBlock = result; |
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3983 free(location); |
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|
3984 } |
| 0 | 3985 } |
| 3986 | |
| 3987 return cppBlock; | |
| 3988 } | |
| 3989 | |
| 3990 // Move to the closing token of the expression we are currently at, | |
| 3991 // as defined by stop_chars. Match parens and quotes. | |
| 3992 char* ADLParser::get_expr(const char *desc, const char *stop_chars) { | |
| 3993 char* expr = NULL; | |
| 3994 int paren = 0; | |
| 3995 | |
| 3996 expr = _ptr; | |
| 3997 while (paren > 0 || !strchr(stop_chars, _curchar)) { | |
| 3998 if (_curchar == '(') { // Down level of nesting | |
| 3999 paren++; // Bump the parenthesis counter | |
| 4000 next_char(); // maintain the invariant | |
| 4001 } | |
| 4002 else if (_curchar == ')') { // Up one level of nesting | |
| 4003 if (paren == 0) { | |
| 4004 // Paren underflow: We didn't encounter the required stop-char. | |
| 4005 parse_err(SYNERR, "too many )'s, did not find %s after %s\n", | |
| 4006 stop_chars, desc); | |
| 4007 return NULL; | |
| 4008 } | |
| 4009 paren--; // Drop the parenthesis counter | |
| 4010 next_char(); // Maintain the invariant | |
| 4011 } | |
| 4012 else if (_curchar == '"' || _curchar == '\'') { | |
| 4013 int qchar = _curchar; | |
| 4014 while (true) { | |
| 4015 next_char(); | |
| 4016 if (_curchar == qchar) { next_char(); break; } | |
| 4017 if (_curchar == '\\') next_char(); // superquote | |
| 4018 if (_curchar == '\n' || _curchar == '\0') { | |
| 4019 parse_err(SYNERR, "newline in string in %s\n", desc); | |
| 4020 return NULL; | |
| 4021 } | |
| 4022 } | |
| 4023 } | |
| 4024 else if (_curchar == '%' && (_ptr[1] == '{' || _ptr[1] == '}')) { | |
| 4025 // Make sure we do not stray into the next ADLC-level form. | |
| 4026 parse_err(SYNERR, "unexpected %%%c in %s\n", _ptr[1], desc); | |
| 4027 return NULL; | |
| 4028 } | |
| 4029 else if (_curchar == '\0') { | |
| 4030 parse_err(SYNERR, "unexpected EOF in %s\n", desc); | |
| 4031 return NULL; | |
| 4032 } | |
| 4033 else { | |
| 4034 // Always walk over whitespace, comments, preprocessor directives, etc. | |
| 4035 char* pre_skip_ptr = _ptr; | |
| 4036 skipws(); | |
| 4037 // If the parser declined to make progress on whitespace, | |
| 4038 // skip the next character, which is therefore NOT whitespace. | |
| 4039 if (pre_skip_ptr == _ptr) { | |
| 4040 next_char(); | |
| 4041 } else if (pre_skip_ptr+strlen(pre_skip_ptr) != _ptr+strlen(_ptr)) { | |
| 4042 parse_err(SYNERR, "unimplemented: preprocessor must not elide subexpression in %s", desc); | |
| 4043 } | |
| 4044 } | |
| 4045 } | |
| 4046 | |
| 4047 assert(strchr(stop_chars, _curchar), "non-null return must be at stop-char"); | |
| 4048 *_ptr = '\0'; // Replace ')' or other stop-char with '\0' | |
| 4049 return expr; | |
| 4050 } | |
| 4051 | |
| 4052 // Helper function around get_expr | |
| 4053 // Sets _curchar to '(' so that get_paren_expr will search for a matching ')' | |
|
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4054 char *ADLParser::get_paren_expr(const char *description, bool include_location) { |
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4055 int line = linenum(); |
| 0 | 4056 if (_curchar != '(') // Escape if not valid starting position |
| 4057 return NULL; | |
| 4058 next_char(); // Skip the required initial paren. | |
| 4059 char *token2 = get_expr(description, ")"); | |
| 4060 if (_curchar == ')') | |
| 4061 next_char(); // Skip required final paren. | |
|
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4062 int junk = 0; |
|
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4063 if (include_location && _AD._adlocation_debug && !is_int_token(token2, junk)) { |
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4064 // Prepend location descriptor, for debugging. |
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4065 char* location = get_line_string(line); |
|
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4066 char* end_loc = end_line_marker(); |
|
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4067 char* result = (char *)malloc(strlen(location) + strlen(token2) + strlen(end_loc) + 1); |
|
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4068 strcpy(result, location); |
|
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|
4069 strcat(result, token2); |
|
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|
4070 strcat(result, end_loc); |
|
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|
4071 token2 = result; |
|
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|
4072 free(location); |
|
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4073 } |
| 0 | 4074 return token2; |
| 4075 } | |
| 4076 | |
| 4077 //------------------------------get_ident_common------------------------------- | |
| 4078 // Looks for an identifier in the buffer, and turns it into a null terminated | |
| 4079 // string(still inside the file buffer). Returns a pointer to the string or | |
| 4080 // NULL if some other token is found instead. | |
| 4081 char *ADLParser::get_ident_common(bool do_preproc) { | |
| 4082 register char c; | |
| 4083 char *start; // Pointer to start of token | |
| 4084 char *end; // Pointer to end of token | |
| 4085 | |
| 4086 if( _curline == NULL ) // Return NULL at EOF. | |
| 4087 return NULL; | |
| 4088 | |
| 4089 skipws_common(do_preproc); // Skip whitespace before identifier | |
| 4090 start = end = _ptr; // Start points at first character | |
| 4091 end--; // unwind end by one to prepare for loop | |
| 4092 do { | |
| 4093 end++; // Increment end pointer | |
| 4094 c = *end; // Grab character to test | |
| 4095 } while ( ((c >= 'a') && (c <= 'z')) || ((c >= 'A') && (c <= 'Z')) | |
| 4096 || ((c >= '0') && (c <= '9')) | |
| 4097 || ((c == '_')) || ((c == ':')) || ((c == '#')) ); | |
| 4098 if (start == end) { // We popped out on the first try | |
| 4099 parse_err(SYNERR, "identifier expected at %c\n", c); | |
| 4100 start = NULL; | |
| 4101 } | |
| 4102 else { | |
| 4103 _curchar = c; // Save the first character of next token | |
| 4104 *end = '\0'; // NULL terminate the string in place | |
| 4105 } | |
| 4106 _ptr = end; // Reset _ptr to point to next char after token | |
| 4107 | |
| 4108 // Make sure we do not try to use #defined identifiers. If start is | |
| 4109 // NULL an error was already reported. | |
| 4110 if (do_preproc && start != NULL) { | |
| 4111 const char* def = _AD.get_preproc_def(start); | |
| 4112 if (def != NULL && strcmp(def, start)) { | |
|
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4113 const char* def1 = def; |
|
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4114 const char* def2 = _AD.get_preproc_def(def1); |
|
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4115 // implement up to 2 levels of #define |
|
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4116 if (def2 != NULL && strcmp(def2, def1)) { |
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4117 def = def2; |
|
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4118 const char* def3 = _AD.get_preproc_def(def2); |
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4119 if (def3 != NULL && strcmp(def3, def2) && strcmp(def3, def1)) { |
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4120 parse_err(SYNERR, "unimplemented: using %s defined as %s => %s => %s", |
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4121 start, def1, def2, def3); |
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4122 } |
| 0 | 4123 } |
| 4124 start = strdup(def); | |
| 4125 } | |
| 4126 } | |
| 4127 | |
| 4128 return start; // Pointer to token in filebuf | |
| 4129 } | |
| 4130 | |
| 4131 //------------------------------get_ident_dup---------------------------------- | |
| 4132 // Looks for an identifier in the buffer, and returns a duplicate | |
| 4133 // or NULL if some other token is found instead. | |
| 4134 char *ADLParser::get_ident_dup(void) { | |
| 4135 char *ident = get_ident(); | |
| 4136 | |
| 4137 // Duplicate an identifier before returning and restore string. | |
| 4138 if( ident != NULL ) { | |
| 4139 ident = strdup(ident); // Copy the string | |
| 4140 *_ptr = _curchar; // and replace Nil with original character | |
| 4141 } | |
| 4142 | |
| 4143 return ident; | |
| 4144 } | |
| 4145 | |
| 4146 //----------------------get_ident_or_literal_constant-------------------------- | |
| 4147 // Looks for an identifier in the buffer, or a parenthesized expression. | |
| 4148 char *ADLParser::get_ident_or_literal_constant(const char* description) { | |
| 4149 char* param = NULL; | |
| 4150 skipws(); | |
| 4151 if (_curchar == '(') { | |
| 4152 // Grab a constant expression. | |
| 4153 param = get_paren_expr(description); | |
| 4154 if (param[0] != '(') { | |
| 4155 char* buf = (char*) malloc(strlen(param) + 3); | |
| 4156 sprintf(buf, "(%s)", param); | |
| 4157 param = buf; | |
| 4158 } | |
| 4159 assert(is_literal_constant(param), | |
| 4160 "expr must be recognizable as a constant"); | |
| 4161 } else { | |
| 4162 param = get_ident(); | |
| 4163 } | |
| 4164 return param; | |
| 4165 } | |
| 4166 | |
| 4167 //------------------------------get_rep_var_ident----------------------------- | |
| 4168 // Do NOT duplicate, | |
| 4169 // Leave nil terminator in buffer | |
| 4170 // Preserve initial '$'(s) in string | |
| 4171 char *ADLParser::get_rep_var_ident(void) { | |
| 4172 // Remember starting point | |
| 4173 char *rep_var = _ptr; | |
| 4174 | |
| 4175 // Check for replacement variable indicator '$' and pass if present | |
| 4176 if ( _curchar == '$' ) { | |
| 4177 next_char(); | |
| 4178 } | |
| 4179 // Check for a subfield indicator, a second '$', and pass if present | |
| 4180 if ( _curchar == '$' ) { | |
| 4181 next_char(); | |
| 4182 } | |
| 4183 | |
| 4184 // Check for a control indicator, a third '$': | |
| 4185 if ( _curchar == '$' ) { | |
| 4186 next_char(); | |
| 4187 } | |
| 4188 | |
| 4189 // Check for more than three '$'s in sequence, SYNERR | |
| 4190 if( _curchar == '$' ) { | |
| 4191 parse_err(SYNERR, "Replacement variables and field specifiers can not start with '$$$$'"); | |
| 4192 next_char(); | |
| 4193 return NULL; | |
| 4194 } | |
| 4195 | |
| 4196 // Nil terminate the variable name following the '$' | |
| 4197 char *rep_var_name = get_ident(); | |
| 4198 assert( rep_var_name != NULL, | |
| 4199 "Missing identifier after replacement variable indicator '$'"); | |
| 4200 | |
| 4201 return rep_var; | |
| 4202 } | |
| 4203 | |
| 4204 | |
| 4205 | |
| 4206 //------------------------------get_rep_var_ident_dup------------------------- | |
| 4207 // Return the next replacement variable identifier, skipping first '$' | |
| 4208 // given a pointer into a line of the buffer. | |
| 4209 // Null terminates string, still inside the file buffer, | |
| 4210 // Returns a pointer to a copy of the string, or NULL on failure | |
| 4211 char *ADLParser::get_rep_var_ident_dup(void) { | |
| 4212 if( _curchar != '$' ) return NULL; | |
| 4213 | |
| 4214 next_char(); // Move past the '$' | |
| 4215 char *rep_var = _ptr; // Remember starting point | |
| 4216 | |
| 4217 // Check for a subfield indicator, a second '$': | |
| 4218 if ( _curchar == '$' ) { | |
| 4219 next_char(); | |
| 4220 } | |
| 4221 | |
| 4222 // Check for a control indicator, a third '$': | |
| 4223 if ( _curchar == '$' ) { | |
| 4224 next_char(); | |
| 4225 } | |
| 4226 | |
| 4227 // Check for more than three '$'s in sequence, SYNERR | |
| 4228 if( _curchar == '$' ) { | |
| 4229 parse_err(SYNERR, "Replacement variables and field specifiers can not start with '$$$$'"); | |
| 4230 next_char(); | |
| 4231 return NULL; | |
| 4232 } | |
| 4233 | |
| 4234 // Nil terminate the variable name following the '$' | |
| 4235 char *rep_var_name = get_ident(); | |
| 4236 assert( rep_var_name != NULL, | |
| 4237 "Missing identifier after replacement variable indicator '$'"); | |
| 4238 rep_var = strdup(rep_var); // Copy the string | |
| 4239 *_ptr = _curchar; // and replace Nil with original character | |
| 4240 | |
| 4241 return rep_var; | |
| 4242 } | |
| 4243 | |
| 4244 | |
| 4245 //------------------------------get_unique_ident------------------------------ | |
| 4246 // Looks for an identifier in the buffer, terminates it with a NULL, | |
| 4247 // and checks that it is unique | |
| 4248 char *ADLParser::get_unique_ident(FormDict& dict, const char* nameDescription){ | |
| 4249 char* ident = get_ident(); | |
| 4250 | |
| 4251 if (ident == NULL) { | |
| 4252 parse_err(SYNERR, "missing %s identifier at %c\n", nameDescription, _curchar); | |
| 4253 } | |
| 4254 else { | |
| 4255 if (dict[ident] != NULL) { | |
| 4256 parse_err(SYNERR, "duplicate name %s for %s\n", ident, nameDescription); | |
| 4257 ident = NULL; | |
| 4258 } | |
| 4259 } | |
| 4260 | |
| 4261 return ident; | |
| 4262 } | |
| 4263 | |
| 4264 | |
| 4265 //------------------------------get_int---------------------------------------- | |
| 4266 // Looks for a character string integer in the buffer, and turns it into an int | |
| 4267 // invokes a parse_err if the next token is not an integer. | |
| 4268 // This routine does not leave the integer null-terminated. | |
| 4269 int ADLParser::get_int(void) { | |
| 4270 register char c; | |
| 4271 char *start; // Pointer to start of token | |
| 4272 char *end; // Pointer to end of token | |
| 4273 int result; // Storage for integer result | |
| 4274 | |
| 4275 if( _curline == NULL ) // Return NULL at EOF. | |
|
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|
4276 return 0; |
| 0 | 4277 |
| 4278 skipws(); // Skip whitespace before identifier | |
| 4279 start = end = _ptr; // Start points at first character | |
| 4280 c = *end; // Grab character to test | |
| 4281 while ((c >= '0') && (c <= '9') | |
| 4282 || ((c == '-') && (end == start))) { | |
| 4283 end++; // Increment end pointer | |
| 4284 c = *end; // Grab character to test | |
| 4285 } | |
| 4286 if (start == end) { // We popped out on the first try | |
| 4287 parse_err(SYNERR, "integer expected at %c\n", c); | |
| 4288 result = 0; | |
| 4289 } | |
| 4290 else { | |
| 4291 _curchar = c; // Save the first character of next token | |
| 4292 *end = '\0'; // NULL terminate the string in place | |
| 4293 result = atoi(start); // Convert the string to an integer | |
| 4294 *end = _curchar; // Restore buffer to original condition | |
| 4295 } | |
| 4296 | |
| 4297 // Reset _ptr to next char after token | |
| 4298 _ptr = end; | |
| 4299 | |
| 4300 return result; // integer | |
| 4301 } | |
| 4302 | |
| 4303 | |
| 4304 //------------------------------get_relation_dup------------------------------ | |
| 4305 // Looks for a relational operator in the buffer | |
| 4306 // invokes a parse_err if the next token is not a relation | |
| 4307 // This routine creates a duplicate of the string in the buffer. | |
| 4308 char *ADLParser::get_relation_dup(void) { | |
| 4309 char *result = NULL; // relational operator being returned | |
| 4310 | |
| 4311 if( _curline == NULL ) // Return NULL at EOF. | |
| 4312 return NULL; | |
| 4313 | |
| 4314 skipws(); // Skip whitespace before relation | |
| 4315 char *start = _ptr; // Store start of relational operator | |
| 4316 char first = *_ptr; // the first character | |
| 4317 if( (first == '=') || (first == '!') || (first == '<') || (first == '>') ) { | |
| 4318 next_char(); | |
| 4319 char second = *_ptr; // the second character | |
| 4320 if( (second == '=') ) { | |
| 4321 next_char(); | |
| 4322 char tmp = *_ptr; | |
| 4323 *_ptr = '\0'; // NULL terminate | |
| 4324 result = strdup(start); // Duplicate the string | |
| 4325 *_ptr = tmp; // restore buffer | |
| 4326 } else { | |
| 4327 parse_err(SYNERR, "relational operator expected at %s\n", _ptr); | |
| 4328 } | |
| 4329 } else { | |
| 4330 parse_err(SYNERR, "relational operator expected at %s\n", _ptr); | |
| 4331 } | |
| 4332 | |
| 4333 return result; | |
| 4334 } | |
| 4335 | |
| 4336 | |
| 4337 | |
| 4338 //------------------------------get_oplist------------------------------------- | |
| 4339 // Looks for identifier pairs where first must be the name of an operand, and | |
| 4340 // second must be a name unique in the scope of this instruction. Stores the | |
| 4341 // names with a pointer to the OpClassForm of their type in a local name table. | |
| 4342 void ADLParser::get_oplist(NameList ¶meters, FormDict &operands) { | |
| 4343 OpClassForm *opclass = NULL; | |
| 4344 char *ident = NULL; | |
| 4345 | |
| 4346 do { | |
| 4347 next_char(); // skip open paren & comma characters | |
| 4348 skipws(); | |
| 4349 if (_curchar == ')') break; | |
| 4350 | |
| 4351 // Get operand type, and check it against global name table | |
| 4352 ident = get_ident(); | |
| 4353 if (ident == NULL) { | |
| 4354 parse_err(SYNERR, "optype identifier expected at %c\n", _curchar); | |
| 4355 return; | |
| 4356 } | |
| 4357 else { | |
| 4358 const Form *form = _globalNames[ident]; | |
| 4359 if( form == NULL ) { | |
| 4360 parse_err(SYNERR, "undefined operand type %s\n", ident); | |
| 4361 return; | |
| 4362 } | |
| 4363 | |
| 4364 // Check for valid operand type | |
| 4365 OpClassForm *opc = form->is_opclass(); | |
| 4366 OperandForm *oper = form->is_operand(); | |
| 4367 if((oper == NULL) && (opc == NULL)) { | |
| 4368 parse_err(SYNERR, "identifier %s not operand type\n", ident); | |
| 4369 return; | |
| 4370 } | |
| 4371 opclass = opc; | |
| 4372 } | |
| 4373 // Debugging Stuff | |
| 4374 if (_AD._adl_debug > 1) fprintf(stderr, "\tOperand Type: %s\t", ident); | |
| 4375 | |
| 4376 // Get name of operand and add it to local name table | |
| 4377 if( (ident = get_unique_ident(operands, "operand")) == NULL) { | |
| 4378 return; | |
| 4379 } | |
| 4380 // Parameter names must not be global names. | |
| 4381 if( _globalNames[ident] != NULL ) { | |
| 4382 parse_err(SYNERR, "Reuse of global name %s as operand.\n",ident); | |
| 4383 return; | |
| 4384 } | |
| 4385 operands.Insert(ident, opclass); | |
| 4386 parameters.addName(ident); | |
| 4387 | |
| 4388 // Debugging Stuff | |
| 4389 if (_AD._adl_debug > 1) fprintf(stderr, "\tOperand Name: %s\n", ident); | |
| 4390 skipws(); | |
| 4391 } while(_curchar == ','); | |
| 4392 | |
| 4393 if (_curchar != ')') parse_err(SYNERR, "missing ')'\n"); | |
| 4394 else { | |
| 4395 next_char(); // set current character position past the close paren | |
| 4396 } | |
| 4397 } | |
| 4398 | |
| 4399 | |
| 4400 //------------------------------get_effectlist--------------------------------- | |
| 4401 // Looks for identifier pairs where first must be the name of a pre-defined, | |
| 4402 // effect, and the second must be the name of an operand defined in the | |
| 4403 // operand list of this instruction. Stores the names with a pointer to the | |
| 4404 // effect form in a local effects table. | |
| 4405 void ADLParser::get_effectlist(FormDict &effects, FormDict &operands) { | |
| 4406 OperandForm *opForm; | |
| 4407 Effect *eForm; | |
| 4408 char *ident; | |
| 4409 | |
| 4410 do { | |
| 4411 next_char(); // skip open paren & comma characters | |
| 4412 skipws(); | |
| 4413 if (_curchar == ')') break; | |
| 4414 | |
| 4415 // Get effect type, and check it against global name table | |
| 4416 ident = get_ident(); | |
| 4417 if (ident == NULL) { | |
| 4418 parse_err(SYNERR, "effect type identifier expected at %c\n", _curchar); | |
| 4419 return; | |
| 4420 } | |
| 4421 else { | |
| 4422 // Check for valid effect type | |
| 4423 const Form *form = _globalNames[ident]; | |
| 4424 if( form == NULL ) { | |
| 4425 parse_err(SYNERR, "undefined effect type %s\n", ident); | |
| 4426 return; | |
| 4427 } | |
| 4428 else { | |
| 4429 if( (eForm = form->is_effect()) == NULL) { | |
| 4430 parse_err(SYNERR, "identifier %s not effect type\n", ident); | |
| 4431 return; | |
| 4432 } | |
| 4433 } | |
| 4434 } | |
| 4435 // Debugging Stuff | |
| 4436 if (_AD._adl_debug > 1) fprintf(stderr, "\tEffect Type: %s\t", ident); | |
| 4437 skipws(); | |
| 4438 // Get name of operand and check that it is in the local name table | |
| 4439 if( (ident = get_unique_ident(effects, "effect")) == NULL) { | |
| 4440 parse_err(SYNERR, "missing operand identifier in effect list\n"); | |
| 4441 return; | |
| 4442 } | |
| 4443 const Form *form = operands[ident]; | |
| 4444 opForm = form ? form->is_operand() : NULL; | |
| 4445 if( opForm == NULL ) { | |
| 4446 if( form && form->is_opclass() ) { | |
| 4447 const char* cname = form->is_opclass()->_ident; | |
| 4448 parse_err(SYNERR, "operand classes are illegal in effect lists (found %s %s)\n", cname, ident); | |
| 4449 } else { | |
| 4450 parse_err(SYNERR, "undefined operand %s in effect list\n", ident); | |
| 4451 } | |
| 4452 return; | |
| 4453 } | |
| 4454 // Add the pair to the effects table | |
| 4455 effects.Insert(ident, eForm); | |
| 4456 // Debugging Stuff | |
| 4457 if (_AD._adl_debug > 1) fprintf(stderr, "\tOperand Name: %s\n", ident); | |
| 4458 skipws(); | |
| 4459 } while(_curchar == ','); | |
| 4460 | |
| 4461 if (_curchar != ')') parse_err(SYNERR, "missing ')'\n"); | |
| 4462 else { | |
| 4463 next_char(); // set current character position past the close paren | |
| 4464 } | |
| 4465 } | |
| 4466 | |
| 4467 | |
|
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4468 //-------------------------------preproc_line---------------------------------- |
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|
4469 // A "#line" keyword has been seen, so parse the rest of the line. |
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4470 void ADLParser::preproc_line(void) { |
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4471 int line = get_int(); |
|
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|
4472 skipws_no_preproc(); |
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|
4473 const char* file = NULL; |
|
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|
4474 if (_curchar == '"') { |
|
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|
4475 next_char(); // Move past the initial '"' |
|
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|
4476 file = _ptr; |
|
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|
4477 while (true) { |
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4478 if (_curchar == '\n') { |
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4479 parse_err(SYNERR, "missing '\"' at end of #line directive"); |
|
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|
4480 return; |
|
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|
4481 } |
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|
4482 if (_curchar == '"') { |
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|
4483 *_ptr = '\0'; // Terminate the string |
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|
4484 next_char(); |
|
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4485 skipws_no_preproc(); |
|
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|
4486 break; |
|
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|
4487 } |
|
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|
4488 next_char(); |
|
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|
4489 } |
|
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|
4490 } |
|
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|
4491 ensure_end_of_line(); |
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|
4492 if (file != NULL) |
|
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|
4493 _AD._ADL_file._name = file; |
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4494 _buf.set_linenum(line); |
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4495 } |
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4496 |
| 0 | 4497 //------------------------------preproc_define--------------------------------- |
| 4498 // A "#define" keyword has been seen, so parse the rest of the line. | |
| 4499 void ADLParser::preproc_define(void) { | |
| 4500 char* flag = get_ident_no_preproc(); | |
| 4501 skipws_no_preproc(); | |
| 4502 // only #define x y is supported for now | |
| 4503 char* def = get_ident_no_preproc(); | |
| 4504 _AD.set_preproc_def(flag, def); | |
| 4505 skipws_no_preproc(); | |
| 4506 if (_curchar != '\n') { | |
| 4507 parse_err(SYNERR, "non-identifier in preprocessor definition\n"); | |
| 4508 } | |
| 4509 } | |
| 4510 | |
| 4511 //------------------------------preproc_undef---------------------------------- | |
| 4512 // An "#undef" keyword has been seen, so parse the rest of the line. | |
| 4513 void ADLParser::preproc_undef(void) { | |
| 4514 char* flag = get_ident_no_preproc(); | |
| 4515 skipws_no_preproc(); | |
| 4516 ensure_end_of_line(); | |
| 4517 _AD.set_preproc_def(flag, NULL); | |
| 4518 } | |
| 4519 | |
| 4520 | |
| 4521 | |
| 4522 //------------------------------parse_err-------------------------------------- | |
| 4523 // Issue a parser error message, and skip to the end of the current line | |
| 4524 void ADLParser::parse_err(int flag, const char *fmt, ...) { | |
| 4525 va_list args; | |
| 4526 | |
| 4527 va_start(args, fmt); | |
| 4528 if (flag == 1) | |
|
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4529 _AD._syntax_errs += _AD.emit_msg(0, flag, linenum(), fmt, args); |
| 0 | 4530 else if (flag == 2) |
|
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4531 _AD._semantic_errs += _AD.emit_msg(0, flag, linenum(), fmt, args); |
| 0 | 4532 else |
|
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4533 _AD._warnings += _AD.emit_msg(0, flag, linenum(), fmt, args); |
| 0 | 4534 |
| 4535 int error_char = _curchar; | |
| 4536 char* error_ptr = _ptr+1; | |
| 4537 for(;*_ptr != '\n'; _ptr++) ; // Skip to the end of the current line | |
| 4538 _curchar = '\n'; | |
| 4539 va_end(args); | |
| 4540 _AD._no_output = 1; | |
| 4541 | |
| 4542 if (flag == 1) { | |
| 4543 char* error_tail = strchr(error_ptr, '\n'); | |
| 4544 char tem = *error_ptr; | |
| 4545 error_ptr[-1] = '\0'; | |
| 4546 char* error_head = error_ptr-1; | |
| 4547 while (error_head > _curline && *error_head) --error_head; | |
| 4548 if (error_tail) *error_tail = '\0'; | |
| 4549 fprintf(stderr, "Error Context: %s>>>%c<<<%s\n", | |
| 4550 error_head, error_char, error_ptr); | |
| 4551 if (error_tail) *error_tail = '\n'; | |
| 4552 error_ptr[-1] = tem; | |
| 4553 } | |
| 4554 } | |
| 4555 | |
| 4556 //---------------------------ensure_start_of_line------------------------------ | |
| 4557 // A preprocessor directive has been encountered. Be sure it has fallen at | |
| 605 | 4558 // the beginning of a line, or else report an error. |
| 0 | 4559 void ADLParser::ensure_start_of_line(void) { |
|
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4560 if (_curchar == '\n') { next_line(); return; } |
| 0 | 4561 assert( _ptr >= _curline && _ptr < _curline+strlen(_curline), |
| 4562 "Must be able to find which line we are in" ); | |
| 4563 | |
| 4564 for (char *s = _curline; s < _ptr; s++) { | |
| 4565 if (*s > ' ') { | |
| 4566 parse_err(SYNERR, "'%c' must be at beginning of line\n", _curchar); | |
| 4567 break; | |
| 4568 } | |
| 4569 } | |
| 4570 } | |
| 4571 | |
| 4572 //---------------------------ensure_end_of_line-------------------------------- | |
| 4573 // A preprocessor directive has been parsed. Be sure there is no trailing | |
| 4574 // garbage at the end of this line. Set the scan point to the beginning of | |
| 4575 // the next line. | |
| 4576 void ADLParser::ensure_end_of_line(void) { | |
| 4577 skipws_no_preproc(); | |
| 4578 if (_curchar != '\n' && _curchar != '\0') { | |
| 4579 parse_err(SYNERR, "garbage char '%c' at end of line\n", _curchar); | |
| 4580 } else { | |
| 4581 next_char_or_line(); | |
| 4582 } | |
| 4583 } | |
| 4584 | |
| 4585 //---------------------------handle_preproc------------------------------------ | |
| 4586 // The '#' character introducing a preprocessor directive has been found. | |
| 4587 // Parse the whole directive name (e.g., #define, #endif) and take appropriate | |
| 4588 // action. If we are in an "untaken" span of text, simply keep track of | |
| 4589 // #ifdef nesting structure, so we can find out when to start taking text | |
| 4590 // again. (In this state, we "sort of support" C's #if directives, enough | |
| 4591 // to disregard their associated #else and #endif lines.) If we are in a | |
| 4592 // "taken" span of text, there are two cases: "#define" and "#undef" | |
| 4593 // directives are preserved and passed up to the caller, which eventually | |
| 4594 // passes control to the top-level parser loop, which handles #define and | |
| 4595 // #undef directly. (This prevents these directives from occurring in | |
| 4596 // arbitrary positions in the AD file--we require better structure than C.) | |
| 4597 // In the other case, and #ifdef, #ifndef, #else, or #endif is silently | |
| 4598 // processed as whitespace, with the "taken" state of the text correctly | |
| 4599 // updated. This routine returns "false" exactly in the case of a "taken" | |
| 4600 // #define or #undef, which tells the caller that a preprocessor token | |
| 4601 // has appeared which must be handled explicitly by the parse loop. | |
| 4602 bool ADLParser::handle_preproc_token() { | |
| 4603 assert(*_ptr == '#', "must be at start of preproc"); | |
| 4604 ensure_start_of_line(); | |
| 4605 next_char(); | |
| 4606 skipws_no_preproc(); | |
| 4607 char* start_ident = _ptr; | |
| 4608 char* ident = (_curchar == '\n') ? NULL : get_ident_no_preproc(); | |
| 4609 if (ident == NULL) { | |
| 4610 parse_err(SYNERR, "expected preprocessor command, got end of line\n"); | |
| 4611 } else if (!strcmp(ident, "ifdef") || | |
| 4612 !strcmp(ident, "ifndef")) { | |
| 4613 char* flag = get_ident_no_preproc(); | |
| 4614 ensure_end_of_line(); | |
| 4615 // Test the identifier only if we are already in taken code: | |
| 4616 bool flag_def = preproc_taken() && (_AD.get_preproc_def(flag) != NULL); | |
| 4617 bool now_taken = !strcmp(ident, "ifdef") ? flag_def : !flag_def; | |
| 4618 begin_if_def(now_taken); | |
| 4619 } else if (!strcmp(ident, "if")) { | |
| 4620 if (preproc_taken()) | |
| 4621 parse_err(SYNERR, "unimplemented: #%s %s", ident, _ptr+1); | |
| 4622 next_line(); | |
| 4623 // Intelligently skip this nested C preprocessor directive: | |
| 4624 begin_if_def(true); | |
| 4625 } else if (!strcmp(ident, "else")) { | |
| 4626 ensure_end_of_line(); | |
| 4627 invert_if_def(); | |
| 4628 } else if (!strcmp(ident, "endif")) { | |
| 4629 ensure_end_of_line(); | |
| 4630 end_if_def(); | |
| 4631 } else if (preproc_taken()) { | |
| 4632 // pass this token up to the main parser as "#define" or "#undef" | |
| 4633 _ptr = start_ident; | |
| 4634 _curchar = *--_ptr; | |
| 4635 if( _curchar != '#' ) { | |
| 4636 parse_err(SYNERR, "no space allowed after # in #define or #undef"); | |
| 4637 assert(_curchar == '#', "no space allowed after # in #define or #undef"); | |
| 4638 } | |
| 4639 return false; | |
| 4640 } | |
| 4641 return true; | |
| 4642 } | |
| 4643 | |
| 4644 //---------------------------skipws_common------------------------------------- | |
| 4645 // Skip whitespace, including comments and newlines, while keeping an accurate | |
| 4646 // line count. | |
| 4647 // Maybe handle certain preprocessor constructs: #ifdef, #ifndef, #else, #endif | |
| 4648 void ADLParser::skipws_common(bool do_preproc) { | |
| 4649 char *start = _ptr; | |
| 4650 char *next = _ptr + 1; | |
| 4651 | |
| 4652 if (*_ptr == '\0') { | |
| 4653 // Check for string terminator | |
| 4654 if (_curchar > ' ') return; | |
| 4655 if (_curchar == '\n') { | |
| 4656 if (!do_preproc) return; // let caller handle the newline | |
| 4657 next_line(); | |
| 4658 _ptr = _curline; next = _ptr + 1; | |
| 4659 } | |
| 4660 else if (_curchar == '#' || | |
| 4661 (_curchar == '/' && (*next == '/' || *next == '*'))) { | |
| 4662 parse_err(SYNERR, "unimplemented: comment token in a funny place"); | |
| 4663 } | |
| 4664 } | |
| 4665 while(_curline != NULL) { // Check for end of file | |
| 4666 if (*_ptr == '\n') { // keep proper track of new lines | |
| 4667 if (!do_preproc) break; // let caller handle the newline | |
| 4668 next_line(); | |
| 4669 _ptr = _curline; next = _ptr + 1; | |
| 4670 } | |
| 4671 else if ((*_ptr == '/') && (*next == '/')) // C++ comment | |
| 4672 do { _ptr++; next++; } while(*_ptr != '\n'); // So go to end of line | |
| 4673 else if ((*_ptr == '/') && (*next == '*')) { // C comment | |
| 4674 _ptr++; next++; | |
| 4675 do { | |
| 4676 _ptr++; next++; | |
| 4677 if (*_ptr == '\n') { // keep proper track of new lines | |
| 4678 next_line(); // skip newlines within comments | |
| 4679 if (_curline == NULL) { // check for end of file | |
| 4680 parse_err(SYNERR, "end-of-file detected inside comment\n"); | |
| 4681 break; | |
| 4682 } | |
| 4683 _ptr = _curline; next = _ptr + 1; | |
| 4684 } | |
| 4685 } while(!((*_ptr == '*') && (*next == '/'))); // Go to end of comment | |
| 4686 _ptr = ++next; next++; // increment _ptr past comment end | |
| 4687 } | |
| 4688 else if (do_preproc && *_ptr == '#') { | |
| 4689 // Note that this calls skipws_common(false) recursively! | |
| 4690 bool preproc_handled = handle_preproc_token(); | |
| 4691 if (!preproc_handled) { | |
| 4692 if (preproc_taken()) { | |
| 4693 return; // short circuit | |
| 4694 } | |
| 4695 ++_ptr; // skip the preprocessor character | |
| 4696 } | |
| 4697 next = _ptr+1; | |
| 4698 } else if(*_ptr > ' ' && !(do_preproc && !preproc_taken())) { | |
| 4699 break; | |
| 4700 } | |
| 4701 else if (*_ptr == '"' || *_ptr == '\'') { | |
| 4702 assert(do_preproc, "only skip strings if doing preproc"); | |
| 4703 // skip untaken quoted string | |
| 4704 int qchar = *_ptr; | |
| 4705 while (true) { | |
| 4706 ++_ptr; | |
| 4707 if (*_ptr == qchar) { ++_ptr; break; } | |
| 4708 if (*_ptr == '\\') ++_ptr; | |
| 4709 if (*_ptr == '\n' || *_ptr == '\0') { | |
| 4710 parse_err(SYNERR, "newline in string"); | |
| 4711 break; | |
| 4712 } | |
| 4713 } | |
| 4714 next = _ptr + 1; | |
| 4715 } | |
| 4716 else { ++_ptr; ++next; } | |
| 4717 } | |
| 4718 if( _curline != NULL ) // at end of file _curchar isn't valid | |
| 4719 _curchar = *_ptr; // reset _curchar to maintain invariant | |
| 4720 } | |
| 4721 | |
| 4722 //---------------------------cur_char----------------------------------------- | |
| 4723 char ADLParser::cur_char() { | |
| 4724 return (_curchar); | |
| 4725 } | |
| 4726 | |
| 4727 //---------------------------next_char----------------------------------------- | |
| 4728 void ADLParser::next_char() { | |
|
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4729 if (_curchar == '\n') parse_err(WARN, "must call next_line!"); |
| 0 | 4730 _curchar = *++_ptr; |
| 4731 // if ( _curchar == '\n' ) { | |
| 4732 // next_line(); | |
| 4733 // } | |
| 4734 } | |
| 4735 | |
| 4736 //---------------------------next_char_or_line--------------------------------- | |
| 4737 void ADLParser::next_char_or_line() { | |
| 4738 if ( _curchar != '\n' ) { | |
| 4739 _curchar = *++_ptr; | |
| 4740 } else { | |
| 4741 next_line(); | |
| 4742 _ptr = _curline; | |
| 4743 _curchar = *_ptr; // maintain invariant | |
| 4744 } | |
| 4745 } | |
| 4746 | |
| 4747 //---------------------------next_line----------------------------------------- | |
| 4748 void ADLParser::next_line() { | |
|
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4749 _curline = _buf.get_line(); |
|
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4750 _curchar = ' '; |
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|
4751 } |
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|
4752 |
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4753 //------------------------get_line_string-------------------------------------- |
|
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4754 // Prepended location descriptor, for debugging. |
|
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4755 // Must return a malloced string (that can be freed if desired). |
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4756 char* ADLParser::get_line_string(int linenum) { |
|
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4757 const char* file = _AD._ADL_file._name; |
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4758 int line = linenum ? linenum : this->linenum(); |
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4759 char* location = (char *)malloc(strlen(file) + 100); |
|
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4760 sprintf(location, "\n#line %d \"%s\"\n", line, file); |
|
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4761 return location; |
| 0 | 4762 } |
| 4763 | |
| 4764 //-------------------------is_literal_constant--------------------------------- | |
| 4765 bool ADLParser::is_literal_constant(const char *param) { | |
| 4766 if (param[0] == 0) return false; // null string | |
| 4767 if (param[0] == '(') return true; // parenthesized expression | |
| 4768 if (param[0] == '0' && (param[1] == 'x' || param[1] == 'X')) { | |
| 4769 // Make sure it's a hex constant. | |
| 4770 int i = 2; | |
| 4771 do { | |
| 4772 if( !ADLParser::is_hex_digit(*(param+i)) ) return false; | |
| 4773 ++i; | |
| 4774 } while( *(param+i) != 0 ); | |
| 4775 return true; | |
| 4776 } | |
| 4777 return false; | |
| 4778 } | |
| 4779 | |
| 4780 //---------------------------is_hex_digit-------------------------------------- | |
| 4781 bool ADLParser::is_hex_digit(char digit) { | |
| 4782 return ((digit >= '0') && (digit <= '9')) | |
| 4783 ||((digit >= 'a') && (digit <= 'f')) | |
| 4784 ||((digit >= 'A') && (digit <= 'F')); | |
| 4785 } | |
| 4786 | |
| 4787 //---------------------------is_int_token-------------------------------------- | |
| 4788 bool ADLParser::is_int_token(const char* token, int& intval) { | |
| 4789 const char* cp = token; | |
| 4790 while (*cp != '\0' && *cp <= ' ') cp++; | |
| 4791 if (*cp == '-') cp++; | |
| 4792 int ndigit = 0; | |
| 4793 while (*cp >= '0' && *cp <= '9') { cp++; ndigit++; } | |
| 4794 while (*cp != '\0' && *cp <= ' ') cp++; | |
| 4795 if (ndigit == 0 || *cp != '\0') { | |
| 4796 return false; | |
| 4797 } | |
| 4798 intval = atoi(token); | |
| 4799 return true; | |
| 4800 } | |
| 4801 | |
|
475
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4802 static const char* skip_expr_ws(const char* str) { |
|
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4803 const char * cp = str; |
|
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4804 while (cp[0]) { |
|
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4805 if (cp[0] <= ' ') { |
|
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4806 ++cp; |
|
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4807 } else if (cp[0] == '#') { |
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|
4808 ++cp; |
|
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4809 while (cp[0] == ' ') ++cp; |
|
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4810 assert(0 == strncmp(cp, "line", 4), "must be a #line directive"); |
|
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4811 const char* eol = strchr(cp, '\n'); |
|
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4812 assert(eol != NULL, "must find end of line"); |
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4813 if (eol == NULL) eol = cp + strlen(cp); |
|
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4814 cp = eol; |
|
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|
4815 } else { |
|
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|
4816 break; |
|
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|
4817 } |
|
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|
4818 } |
|
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|
4819 return cp; |
|
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|
4820 } |
|
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|
4821 |
|
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|
4822 //-----------------------equivalent_expressions-------------------------------- |
|
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4823 bool ADLParser::equivalent_expressions(const char* str1, const char* str2) { |
|
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|
4824 if (str1 == str2) |
|
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|
4825 return true; |
|
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|
4826 else if (str1 == NULL || str2 == NULL) |
|
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|
4827 return false; |
|
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|
4828 const char* cp1 = str1; |
|
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|
4829 const char* cp2 = str2; |
|
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|
4830 char in_quote = '\0'; |
|
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|
4831 while (cp1[0] && cp2[0]) { |
|
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4832 if (!in_quote) { |
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4833 // skip spaces and/or cpp directives |
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4834 const char* cp1a = skip_expr_ws(cp1); |
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4835 const char* cp2a = skip_expr_ws(cp2); |
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4836 if (cp1a > cp1 && cp2a > cp2) { |
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4837 cp1 = cp1a; cp2 = cp2a; |
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4838 continue; |
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4839 } |
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4840 if (cp1a > cp1 || cp2a > cp2) break; // fail |
|
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4841 } |
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4842 // match one non-space char |
|
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4843 if (cp1[0] != cp2[0]) break; // fail |
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4844 char ch = cp1[0]; |
|
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4845 cp1++; cp2++; |
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4846 // watch for quotes |
|
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4847 if (in_quote && ch == '\\') { |
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4848 if (cp1[0] != cp2[0]) break; // fail |
|
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4849 if (!cp1[0]) break; |
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4850 cp1++; cp2++; |
|
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4851 } |
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4852 if (in_quote && ch == in_quote) { |
|
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4853 in_quote = '\0'; |
|
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|
4854 } else if (!in_quote && (ch == '"' || ch == '\'')) { |
|
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|
4855 in_quote = ch; |
|
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|
4856 } |
|
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|
4857 } |
|
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|
4858 return (!cp1[0] && !cp2[0]); |
|
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|
4859 } |
|
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|
4860 |
|
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|
4861 |
| 0 | 4862 //-------------------------------trim------------------------------------------ |
| 4863 void ADLParser::trim(char* &token) { | |
| 4864 while (*token <= ' ') token++; | |
| 4865 char* end = token + strlen(token); | |
| 4866 while (end > token && *(end-1) <= ' ') --end; | |
| 4867 *end = '\0'; | |
| 4868 } |