Mercurial > hg > graal-jvmci-8
annotate src/share/vm/adlc/adlparse.cpp @ 4114:6729bbc1fcd6
7003454: order constants in constant table by number of references in code
Reviewed-by: kvn, never, bdelsart
| author | twisti |
|---|---|
| date | Wed, 16 Nov 2011 01:39:50 -0800 |
| parents | c7b60b601eb4 |
| children | f03a3c8bd5e5 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 // ADLPARSE.CPP - Architecture Description Language Parser | |
| 26 // Authors: Chris Vick and Mike Paleczny | |
| 27 #include "adlc.hpp" | |
| 28 | |
| 29 //----------------------------ADLParser---------------------------------------- | |
| 30 // Create a new ADL parser | |
| 31 ADLParser::ADLParser(FileBuff& buffer, ArchDesc& archDesc) | |
| 32 : _buf(buffer), _AD(archDesc), | |
| 33 _globalNames(archDesc.globalNames()) { | |
| 34 _AD._syntax_errs = _AD._semantic_errs = 0; // No errors so far this file | |
| 35 _AD._warnings = 0; // No warnings either | |
| 36 _curline = _ptr = NULL; // No pointers into buffer yet | |
| 37 | |
| 38 _preproc_depth = 0; | |
| 39 _preproc_not_taken = 0; | |
| 40 | |
| 41 // Delimit command-line definitions from in-file definitions: | |
| 42 _AD._preproc_list.add_signal(); | |
| 43 } | |
| 44 | |
| 45 //------------------------------~ADLParser------------------------------------- | |
| 46 // Delete an ADL parser. | |
| 47 ADLParser::~ADLParser() { | |
| 48 if (!_AD._quiet_mode) | |
| 49 fprintf(stderr,"---------------------------- Errors and Warnings ----------------------------\n"); | |
| 50 #ifndef ASSERT | |
| 51 fprintf(stderr, "**************************************************************\n"); | |
| 52 fprintf(stderr, "***** WARNING: ASSERT is undefined, assertions disabled. *****\n"); | |
| 53 fprintf(stderr, "**************************************************************\n"); | |
| 54 #endif | |
| 55 if( _AD._syntax_errs + _AD._semantic_errs + _AD._warnings == 0 ) { | |
| 56 if (!_AD._quiet_mode) | |
| 57 fprintf(stderr,"No errors or warnings to report from phase-1 parse.\n" ); | |
| 58 } | |
| 59 else { | |
| 60 if( _AD._syntax_errs ) { // Any syntax errors? | |
| 61 fprintf(stderr,"%s: Found %d syntax error", _buf._fp->_name, _AD._syntax_errs); | |
| 62 if( _AD._syntax_errs > 1 ) fprintf(stderr,"s.\n\n"); | |
| 63 else fprintf(stderr,".\n\n"); | |
| 64 } | |
| 65 if( _AD._semantic_errs ) { // Any semantic errors? | |
| 66 fprintf(stderr,"%s: Found %d semantic error", _buf._fp->_name, _AD._semantic_errs); | |
| 67 if( _AD._semantic_errs > 1 ) fprintf(stderr,"s.\n\n"); | |
| 68 else fprintf(stderr,".\n\n"); | |
| 69 } | |
| 70 if( _AD._warnings ) { // Any warnings? | |
| 71 fprintf(stderr,"%s: Found %d warning", _buf._fp->_name, _AD._warnings); | |
| 72 if( _AD._warnings > 1 ) fprintf(stderr,"s.\n\n"); | |
| 73 else fprintf(stderr,".\n\n"); | |
| 74 } | |
| 75 } | |
| 76 if (!_AD._quiet_mode) | |
| 77 fprintf(stderr,"-----------------------------------------------------------------------------\n"); | |
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78 _AD._TotalLines += linenum()-1; // -1 for overshoot in "nextline" routine |
| 0 | 79 |
| 80 // Write out information we have stored | |
| 81 // // UNIXism == fsync(stderr); | |
| 82 } | |
| 83 | |
| 84 //------------------------------parse------------------------------------------ | |
| 85 // Each top-level keyword should appear as the first non-whitespace on a line. | |
| 86 // | |
| 87 void ADLParser::parse() { | |
| 88 char *ident; | |
| 89 | |
| 90 // Iterate over the lines in the file buffer parsing Level 1 objects | |
| 91 for( next_line(); _curline != NULL; next_line()) { | |
| 92 _ptr = _curline; // Reset ptr to start of new line | |
| 93 skipws(); // Skip any leading whitespace | |
| 94 ident = get_ident(); // Get first token | |
| 95 if (ident == NULL) { // Empty line | |
| 96 continue; // Get the next line | |
| 97 } | |
| 2008 | 98 if (!strcmp(ident, "instruct")) instr_parse(); |
| 0 | 99 else if (!strcmp(ident, "operand")) oper_parse(); |
| 100 else if (!strcmp(ident, "opclass")) opclass_parse(); | |
| 101 else if (!strcmp(ident, "ins_attrib")) ins_attr_parse(); | |
| 102 else if (!strcmp(ident, "op_attrib")) op_attr_parse(); | |
| 103 else if (!strcmp(ident, "source")) source_parse(); | |
| 104 else if (!strcmp(ident, "source_hpp")) source_hpp_parse(); | |
| 105 else if (!strcmp(ident, "register")) reg_parse(); | |
| 106 else if (!strcmp(ident, "frame")) frame_parse(); | |
| 107 else if (!strcmp(ident, "encode")) encode_parse(); | |
| 108 else if (!strcmp(ident, "pipeline")) pipe_parse(); | |
| 109 else if (!strcmp(ident, "definitions")) definitions_parse(); | |
| 110 else if (!strcmp(ident, "peephole")) peep_parse(); | |
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111 else if (!strcmp(ident, "#line")) preproc_line(); |
| 0 | 112 else if (!strcmp(ident, "#define")) preproc_define(); |
| 113 else if (!strcmp(ident, "#undef")) preproc_undef(); | |
| 114 else { | |
| 115 parse_err(SYNERR, "expected one of - instruct, operand, ins_attrib, op_attrib, source, register, pipeline, encode\n Found %s",ident); | |
| 116 } | |
| 117 } | |
| 118 | |
| 119 // Done with parsing, check consistency. | |
| 120 | |
| 121 if (_preproc_depth != 0) { | |
| 122 parse_err(SYNERR, "End of file inside #ifdef"); | |
| 123 } | |
| 124 | |
| 125 // AttributeForms ins_cost and op_cost must be defined for default behaviour | |
| 126 if (_globalNames[AttributeForm::_ins_cost] == NULL) { | |
| 127 parse_err(SEMERR, "Did not declare 'ins_cost' attribute"); | |
| 128 } | |
| 129 if (_globalNames[AttributeForm::_op_cost] == NULL) { | |
| 130 parse_err(SEMERR, "Did not declare 'op_cost' attribute"); | |
| 131 } | |
| 132 } | |
| 133 | |
| 134 // ******************** Private Level 1 Parse Functions ******************** | |
| 135 //------------------------------instr_parse------------------------------------ | |
| 136 // Parse the contents of an instruction definition, build the InstructForm to | |
| 137 // represent that instruction, and add it to the InstructForm list. | |
| 138 void ADLParser::instr_parse(void) { | |
| 139 char *ident; | |
| 140 InstructForm *instr; | |
| 141 MatchRule *rule; | |
| 142 int match_rules_cnt = 0; | |
| 143 | |
| 144 // First get the name of the instruction | |
| 145 if( (ident = get_unique_ident(_globalNames,"instruction")) == NULL ) | |
| 146 return; | |
| 147 instr = new InstructForm(ident); // Create new instruction form | |
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148 instr->_linenum = linenum(); |
| 0 | 149 _globalNames.Insert(ident, instr); // Add name to the name table |
| 150 // Debugging Stuff | |
| 151 if (_AD._adl_debug > 1) | |
| 152 fprintf(stderr,"Parsing Instruction Form %s\n", ident); | |
| 153 | |
| 154 // Then get the operands | |
| 155 skipws(); | |
| 156 if (_curchar != '(') { | |
| 157 parse_err(SYNERR, "missing '(' in instruct definition\n"); | |
| 158 } | |
| 159 // Parse the operand list | |
| 160 else get_oplist(instr->_parameters, instr->_localNames); | |
| 161 skipws(); // Skip leading whitespace | |
| 162 // Check for block delimiter | |
| 163 if ( (_curchar != '%') | |
| 164 || ( next_char(), (_curchar != '{')) ) { | |
| 165 parse_err(SYNERR, "missing '%{' in instruction definition\n"); | |
| 166 return; | |
| 167 } | |
| 168 next_char(); // Maintain the invariant | |
| 169 do { | |
| 170 ident = get_ident(); // Grab next identifier | |
| 171 if (ident == NULL) { | |
| 172 parse_err(SYNERR, "keyword identifier expected at %c\n", _curchar); | |
| 173 continue; | |
| 174 } | |
| 175 if (!strcmp(ident, "predicate")) instr->_predicate = pred_parse(); | |
| 176 else if (!strcmp(ident, "match")) { | |
| 177 // Allow one instruction have several match rules. | |
| 178 rule = instr->_matrule; | |
| 179 if (rule == NULL) { | |
| 180 // This is first match rule encountered | |
| 181 rule = match_parse(instr->_localNames); | |
| 182 if (rule) { | |
| 183 instr->_matrule = rule; | |
| 184 // Special case the treatment of Control instructions. | |
| 185 if( instr->is_ideal_control() ) { | |
| 186 // Control instructions return a special result, 'Universe' | |
| 187 rule->_result = "Universe"; | |
| 188 } | |
| 189 // Check for commutative operations with tree operands. | |
| 190 matchrule_clone_and_swap(rule, instr->_ident, match_rules_cnt); | |
| 191 } | |
| 192 } else { | |
| 193 // Find the end of the match rule list | |
| 194 while (rule->_next != NULL) | |
| 195 rule = rule->_next; | |
| 196 // Add the new match rule to the list | |
| 197 rule->_next = match_parse(instr->_localNames); | |
| 198 if (rule->_next) { | |
| 199 rule = rule->_next; | |
| 200 if( instr->is_ideal_control() ) { | |
| 201 parse_err(SYNERR, "unique match rule expected for %s\n", rule->_name); | |
| 202 return; | |
| 203 } | |
| 204 assert(match_rules_cnt < 100," too many match rule clones"); | |
| 205 char* buf = (char*) malloc(strlen(instr->_ident) + 4); | |
| 206 sprintf(buf, "%s_%d", instr->_ident, match_rules_cnt++); | |
| 207 rule->_result = buf; | |
| 208 // Check for commutative operations with tree operands. | |
| 209 matchrule_clone_and_swap(rule, instr->_ident, match_rules_cnt); | |
| 210 } | |
| 211 } | |
| 212 } | |
| 213 else if (!strcmp(ident, "encode")) { | |
| 214 parse_err(SYNERR, "Instructions specify ins_encode, not encode\n"); | |
| 215 } | |
| 2008 | 216 else if (!strcmp(ident, "ins_encode")) ins_encode_parse(*instr); |
| 217 else if (!strcmp(ident, "opcode")) instr->_opcode = opcode_parse(instr); | |
| 218 else if (!strcmp(ident, "size")) instr->_size = size_parse(instr); | |
| 219 else if (!strcmp(ident, "effect")) effect_parse(instr); | |
| 220 else if (!strcmp(ident, "expand")) instr->_exprule = expand_parse(instr); | |
| 221 else if (!strcmp(ident, "rewrite")) instr->_rewrule = rewrite_parse(); | |
| 0 | 222 else if (!strcmp(ident, "constraint")) { |
| 223 parse_err(SYNERR, "Instructions do not specify a constraint\n"); | |
| 224 } | |
| 225 else if (!strcmp(ident, "construct")) { | |
| 226 parse_err(SYNERR, "Instructions do not specify a construct\n"); | |
| 227 } | |
| 2008 | 228 else if (!strcmp(ident, "format")) instr->_format = format_parse(); |
| 0 | 229 else if (!strcmp(ident, "interface")) { |
| 230 parse_err(SYNERR, "Instructions do not specify an interface\n"); | |
| 231 } | |
| 2008 | 232 else if (!strcmp(ident, "ins_pipe")) ins_pipe_parse(*instr); |
| 0 | 233 else { // Done with staticly defined parts of instruction definition |
| 234 // Check identifier to see if it is the name of an attribute | |
| 235 const Form *form = _globalNames[ident]; | |
| 236 AttributeForm *attr = form ? form->is_attribute() : NULL; | |
| 237 if( attr && (attr->_atype == INS_ATTR) ) { | |
| 238 // Insert the new attribute into the linked list. | |
| 239 Attribute *temp = attr_parse(ident); | |
| 240 temp->_next = instr->_attribs; | |
| 241 instr->_attribs = temp; | |
| 242 } else { | |
| 243 parse_err(SYNERR, "expected one of:\n predicate, match, encode, or the name of an instruction attribute at %s\n", ident); | |
| 244 } | |
| 245 } | |
| 246 skipws(); | |
| 247 } while(_curchar != '%'); | |
| 248 next_char(); | |
| 249 if (_curchar != '}') { | |
| 250 parse_err(SYNERR, "missing '%}' in instruction definition\n"); | |
| 251 return; | |
| 252 } | |
| 253 // Check for "Set" form of chain rule | |
| 254 adjust_set_rule(instr); | |
| 255 if (_AD._pipeline ) { | |
| 256 if( instr->expands() ) { | |
| 257 if( instr->_ins_pipe ) | |
| 258 parse_err(WARN, "ins_pipe and expand rule both specified for instruction \"%s\"; ins_pipe will be unused\n", instr->_ident); | |
| 259 } else { | |
| 260 if( !instr->_ins_pipe ) | |
| 261 parse_err(WARN, "No ins_pipe specified for instruction \"%s\"\n", instr->_ident); | |
| 262 } | |
| 263 } | |
| 264 // Add instruction to tail of instruction list | |
| 265 _AD.addForm(instr); | |
| 266 | |
| 267 // Create instruction form for each additional match rule | |
| 268 rule = instr->_matrule; | |
| 269 if (rule != NULL) { | |
| 270 rule = rule->_next; | |
| 271 while (rule != NULL) { | |
| 272 ident = (char*)rule->_result; | |
| 273 InstructForm *clone = new InstructForm(ident, instr, rule); // Create new instruction form | |
| 274 _globalNames.Insert(ident, clone); // Add name to the name table | |
| 275 // Debugging Stuff | |
| 276 if (_AD._adl_debug > 1) | |
| 277 fprintf(stderr,"Parsing Instruction Form %s\n", ident); | |
| 278 // Check for "Set" form of chain rule | |
| 279 adjust_set_rule(clone); | |
| 280 // Add instruction to tail of instruction list | |
| 281 _AD.addForm(clone); | |
| 282 rule = rule->_next; | |
| 283 clone->_matrule->_next = NULL; // One match rule per clone | |
| 284 } | |
| 285 } | |
| 286 } | |
| 287 | |
| 288 //------------------------------matchrule_clone_and_swap----------------------- | |
| 289 // Check for commutative operations with subtree operands, | |
| 290 // create clones and swap operands. | |
| 291 void ADLParser::matchrule_clone_and_swap(MatchRule* rule, const char* instr_ident, int& match_rules_cnt) { | |
| 292 // Check for commutative operations with tree operands. | |
| 293 int count = 0; | |
| 294 rule->count_commutative_op(count); | |
| 295 if (count > 0) { | |
| 296 // Clone match rule and swap commutative operation's operands. | |
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297 rule->matchrule_swap_commutative_op(instr_ident, count, match_rules_cnt); |
| 0 | 298 } |
| 299 } | |
| 300 | |
| 301 //------------------------------adjust_set_rule-------------------------------- | |
| 302 // Check for "Set" form of chain rule | |
| 303 void ADLParser::adjust_set_rule(InstructForm *instr) { | |
| 304 if (instr->_matrule == NULL || instr->_matrule->_rChild == NULL) return; | |
| 305 const char *rch = instr->_matrule->_rChild->_opType; | |
| 306 const Form *frm = _globalNames[rch]; | |
| 307 if( (! strcmp(instr->_matrule->_opType,"Set")) && | |
| 308 frm && frm->is_operand() && (! frm->ideal_only()) ) { | |
| 309 // Previous implementation, which missed leaP*, but worked for loadCon* | |
| 310 unsigned position = 0; | |
| 311 const char *result = NULL; | |
| 312 const char *name = NULL; | |
| 313 const char *optype = NULL; | |
| 314 MatchNode *right = instr->_matrule->_rChild; | |
| 315 if (right->base_operand(position, _globalNames, result, name, optype)) { | |
| 316 position = 1; | |
| 317 const char *result2 = NULL; | |
| 318 const char *name2 = NULL; | |
| 319 const char *optype2 = NULL; | |
| 320 // Can not have additional base operands in right side of match! | |
| 321 if ( ! right->base_operand( position, _globalNames, result2, name2, optype2) ) { | |
| 2008 | 322 if (instr->_predicate != NULL) |
| 323 parse_err(SYNERR, "ADLC does not support instruction chain rules with predicates"); | |
| 0 | 324 // Chain from input _ideal_operand_type_, |
| 325 // Needed for shared roots of match-trees | |
| 326 ChainList *lst = (ChainList *)_AD._chainRules[optype]; | |
| 327 if (lst == NULL) { | |
| 328 lst = new ChainList(); | |
| 329 _AD._chainRules.Insert(optype, lst); | |
| 330 } | |
| 331 if (!lst->search(instr->_matrule->_lChild->_opType)) { | |
| 332 const char *cost = instr->cost(); | |
| 333 if (cost == NULL) { | |
| 334 cost = ((AttributeForm*)_globalNames[AttributeForm::_ins_cost])->_attrdef; | |
| 335 } | |
| 336 // The ADLC does not support chaining from the ideal operand type | |
| 337 // of a predicated user-defined operand | |
| 338 if( frm->is_operand() == NULL || frm->is_operand()->_predicate == NULL ) { | |
| 339 lst->insert(instr->_matrule->_lChild->_opType,cost,instr->_ident); | |
| 340 } | |
| 341 } | |
| 342 // Chain from input _user_defined_operand_type_, | |
| 343 lst = (ChainList *)_AD._chainRules[result]; | |
| 344 if (lst == NULL) { | |
| 345 lst = new ChainList(); | |
| 346 _AD._chainRules.Insert(result, lst); | |
| 347 } | |
| 348 if (!lst->search(instr->_matrule->_lChild->_opType)) { | |
| 349 const char *cost = instr->cost(); | |
| 350 if (cost == NULL) { | |
| 351 cost = ((AttributeForm*)_globalNames[AttributeForm::_ins_cost])->_attrdef; | |
| 352 } | |
| 353 // It is safe to chain from the top-level user-defined operand even | |
| 354 // if it has a predicate, since the predicate is checked before | |
| 355 // the user-defined type is available. | |
| 356 lst->insert(instr->_matrule->_lChild->_opType,cost,instr->_ident); | |
| 357 } | |
| 358 } else { | |
| 359 // May have instruction chain rule if root of right-tree is an ideal | |
| 360 OperandForm *rightOp = _globalNames[right->_opType]->is_operand(); | |
| 361 if( rightOp ) { | |
| 362 const Form *rightRoot = _globalNames[rightOp->_matrule->_opType]; | |
| 363 if( rightRoot && rightRoot->ideal_only() ) { | |
| 364 const char *chain_op = NULL; | |
| 365 if( rightRoot->is_instruction() ) | |
| 366 chain_op = rightOp->_ident; | |
| 367 if( chain_op ) { | |
| 368 // Look-up the operation in chain rule table | |
| 369 ChainList *lst = (ChainList *)_AD._chainRules[chain_op]; | |
| 370 if (lst == NULL) { | |
| 371 lst = new ChainList(); | |
| 372 _AD._chainRules.Insert(chain_op, lst); | |
| 373 } | |
| 374 // if (!lst->search(instr->_matrule->_lChild->_opType)) { | |
| 375 const char *cost = instr->cost(); | |
| 376 if (cost == NULL) { | |
| 377 cost = ((AttributeForm*)_globalNames[AttributeForm::_ins_cost])->_attrdef; | |
| 378 } | |
| 379 // This chains from a top-level operand whose predicate, if any, | |
| 380 // has been checked. | |
| 381 lst->insert(instr->_matrule->_lChild->_opType,cost,instr->_ident); | |
| 382 // } | |
| 383 } | |
| 384 } | |
| 385 } | |
| 386 } // end chain rule from right-tree's ideal root | |
| 387 } | |
| 388 } | |
| 389 } | |
| 390 | |
| 391 | |
| 392 //------------------------------oper_parse------------------------------------- | |
| 393 void ADLParser::oper_parse(void) { | |
| 394 char *ident; | |
| 395 OperandForm *oper; | |
| 396 AttributeForm *attr; | |
| 397 MatchRule *rule; | |
| 398 | |
| 399 // First get the name of the operand | |
| 400 skipws(); | |
| 401 if( (ident = get_unique_ident(_globalNames,"operand")) == NULL ) | |
| 402 return; | |
| 403 oper = new OperandForm(ident); // Create new operand form | |
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404 oper->_linenum = linenum(); |
| 0 | 405 _globalNames.Insert(ident, oper); // Add name to the name table |
| 406 | |
| 407 // Debugging Stuff | |
| 408 if (_AD._adl_debug > 1) fprintf(stderr,"Parsing Operand Form %s\n", ident); | |
| 409 | |
| 410 // Get the component operands | |
| 411 skipws(); | |
| 412 if (_curchar != '(') { | |
| 413 parse_err(SYNERR, "missing '(' in operand definition\n"); | |
| 414 return; | |
| 415 } | |
| 416 else get_oplist(oper->_parameters, oper->_localNames); // Parse the component operand list | |
| 417 skipws(); | |
| 418 // Check for block delimiter | |
| 419 if ((_curchar != '%') || (*(_ptr+1) != '{')) { // If not open block | |
| 420 parse_err(SYNERR, "missing '%c{' in operand definition\n","%"); | |
| 421 return; | |
| 422 } | |
| 423 next_char(); next_char(); // Skip over "%{" symbol | |
| 424 do { | |
| 425 ident = get_ident(); // Grab next identifier | |
| 426 if (ident == NULL) { | |
| 427 parse_err(SYNERR, "keyword identifier expected at %c\n", _curchar); | |
| 428 continue; | |
| 429 } | |
| 430 if (!strcmp(ident, "predicate")) oper->_predicate = pred_parse(); | |
| 431 else if (!strcmp(ident, "match")) { | |
| 432 // Find the end of the match rule list | |
| 433 rule = oper->_matrule; | |
| 434 if (rule) { | |
| 435 while (rule->_next) rule = rule->_next; | |
| 436 // Add the new match rule to the list | |
| 437 rule->_next = match_parse(oper->_localNames); | |
| 438 if (rule->_next) { | |
| 439 rule->_next->_result = oper->_ident; | |
| 440 } | |
| 441 } | |
| 442 else { | |
| 443 // This is first match rule encountered | |
| 444 oper->_matrule = match_parse(oper->_localNames); | |
| 445 if (oper->_matrule) { | |
| 446 oper->_matrule->_result = oper->_ident; | |
| 447 } | |
| 448 } | |
| 449 } | |
| 450 else if (!strcmp(ident, "encode")) oper->_interface = interface_parse(); | |
| 451 else if (!strcmp(ident, "ins_encode")) { | |
| 452 parse_err(SYNERR, "Operands specify 'encode', not 'ins_encode'\n"); | |
| 453 } | |
| 454 else if (!strcmp(ident, "opcode")) { | |
| 455 parse_err(SYNERR, "Operands do not specify an opcode\n"); | |
| 456 } | |
| 457 else if (!strcmp(ident, "effect")) { | |
| 458 parse_err(SYNERR, "Operands do not specify an effect\n"); | |
| 459 } | |
| 460 else if (!strcmp(ident, "expand")) { | |
| 461 parse_err(SYNERR, "Operands do not specify an expand\n"); | |
| 462 } | |
| 463 else if (!strcmp(ident, "rewrite")) { | |
| 464 parse_err(SYNERR, "Operands do not specify a rewrite\n"); | |
| 465 } | |
| 466 else if (!strcmp(ident, "constraint"))oper->_constraint= constraint_parse(); | |
| 467 else if (!strcmp(ident, "construct")) oper->_construct = construct_parse(); | |
| 468 else if (!strcmp(ident, "format")) oper->_format = format_parse(); | |
| 469 else if (!strcmp(ident, "interface")) oper->_interface = interface_parse(); | |
| 470 // Check identifier to see if it is the name of an attribute | |
| 471 else if (((attr = _globalNames[ident]->is_attribute()) != NULL) && | |
| 472 (attr->_atype == OP_ATTR)) oper->_attribs = attr_parse(ident); | |
| 473 else { | |
| 474 parse_err(SYNERR, "expected one of - constraint, predicate, match, encode, format, construct, or the name of a defined operand attribute at %s\n", ident); | |
| 475 } | |
| 476 skipws(); | |
| 477 } while(_curchar != '%'); | |
| 478 next_char(); | |
| 479 if (_curchar != '}') { | |
| 480 parse_err(SYNERR, "missing '%}' in operand definition\n"); | |
| 481 return; | |
| 482 } | |
| 483 // Add operand to tail of operand list | |
| 484 _AD.addForm(oper); | |
| 485 } | |
| 486 | |
| 487 //------------------------------opclass_parse---------------------------------- | |
| 488 // Operand Classes are a block with a comma delimited list of operand names | |
| 489 void ADLParser::opclass_parse(void) { | |
| 490 char *ident; | |
| 491 OpClassForm *opc; | |
| 492 OperandForm *opForm; | |
| 493 | |
| 494 // First get the name of the operand class | |
| 495 skipws(); | |
| 496 if( (ident = get_unique_ident(_globalNames,"opclass")) == NULL ) | |
| 497 return; | |
| 498 opc = new OpClassForm(ident); // Create new operand class form | |
| 499 _globalNames.Insert(ident, opc); // Add name to the name table | |
| 500 | |
| 501 // Debugging Stuff | |
| 502 if (_AD._adl_debug > 1) | |
| 503 fprintf(stderr,"Parsing Operand Class Form %s\n", ident); | |
| 504 | |
| 505 // Get the list of operands | |
| 506 skipws(); | |
| 507 if (_curchar != '(') { | |
| 508 parse_err(SYNERR, "missing '(' in operand definition\n"); | |
| 509 return; | |
| 510 } | |
| 511 do { | |
| 512 next_char(); // Skip past open paren or comma | |
| 513 ident = get_ident(); // Grab next identifier | |
| 514 if (ident == NULL) { | |
| 515 parse_err(SYNERR, "keyword identifier expected at %c\n", _curchar); | |
| 516 continue; | |
| 517 } | |
| 518 // Check identifier to see if it is the name of an operand | |
| 519 const Form *form = _globalNames[ident]; | |
| 520 opForm = form ? form->is_operand() : NULL; | |
| 521 if ( opForm ) { | |
| 522 opc->_oplst.addName(ident); // Add operand to opclass list | |
| 523 opForm->_classes.addName(opc->_ident);// Add opclass to operand list | |
| 524 } | |
| 525 else { | |
| 526 parse_err(SYNERR, "expected name of a defined operand at %s\n", ident); | |
| 527 } | |
| 528 skipws(); // skip trailing whitespace | |
| 529 } while (_curchar == ','); // Check for the comma | |
| 530 // Check for closing ')' | |
| 531 if (_curchar != ')') { | |
| 532 parse_err(SYNERR, "missing ')' or ',' in opclass definition\n"); | |
| 533 return; | |
| 534 } | |
| 535 next_char(); // Consume the ')' | |
| 536 skipws(); | |
| 537 // Check for closing ';' | |
| 538 if (_curchar != ';') { | |
| 539 parse_err(SYNERR, "missing ';' in opclass definition\n"); | |
| 540 return; | |
| 541 } | |
| 542 next_char(); // Consume the ';' | |
| 543 // Add operand to tail of operand list | |
| 544 _AD.addForm(opc); | |
| 545 } | |
| 546 | |
| 547 //------------------------------ins_attr_parse--------------------------------- | |
| 548 void ADLParser::ins_attr_parse(void) { | |
| 549 char *ident; | |
| 550 char *aexpr; | |
| 551 AttributeForm *attrib; | |
| 552 | |
| 553 // get name for the instruction attribute | |
| 554 skipws(); // Skip leading whitespace | |
| 555 if( (ident = get_unique_ident(_globalNames,"inst_attrib")) == NULL ) | |
| 556 return; | |
| 557 // Debugging Stuff | |
| 558 if (_AD._adl_debug > 1) fprintf(stderr,"Parsing Ins_Attribute Form %s\n", ident); | |
| 559 | |
| 560 // Get default value of the instruction attribute | |
| 561 skipws(); // Skip whitespace | |
| 562 if ((aexpr = get_paren_expr("attribute default expression string")) == NULL) { | |
| 563 parse_err(SYNERR, "missing '(' in ins_attrib definition\n"); | |
| 564 return; | |
| 565 } | |
| 566 // Debug Stuff | |
| 567 if (_AD._adl_debug > 1) fprintf(stderr,"Attribute Expression: %s\n", aexpr); | |
| 568 | |
| 569 // Check for terminator | |
| 570 if (_curchar != ';') { | |
| 571 parse_err(SYNERR, "missing ';' in ins_attrib definition\n"); | |
| 572 return; | |
| 573 } | |
| 574 next_char(); // Advance past the ';' | |
| 575 | |
| 576 // Construct the attribute, record global name, and store in ArchDesc | |
| 577 attrib = new AttributeForm(ident, INS_ATTR, aexpr); | |
| 578 _globalNames.Insert(ident, attrib); // Add name to the name table | |
| 579 _AD.addForm(attrib); | |
| 580 } | |
| 581 | |
| 582 //------------------------------op_attr_parse---------------------------------- | |
| 583 void ADLParser::op_attr_parse(void) { | |
| 584 char *ident; | |
| 585 char *aexpr; | |
| 586 AttributeForm *attrib; | |
| 587 | |
| 588 // get name for the operand attribute | |
| 589 skipws(); // Skip leading whitespace | |
| 590 if( (ident = get_unique_ident(_globalNames,"op_attrib")) == NULL ) | |
| 591 return; | |
| 592 // Debugging Stuff | |
| 593 if (_AD._adl_debug > 1) fprintf(stderr,"Parsing Op_Attribute Form %s\n", ident); | |
| 594 | |
| 595 // Get default value of the instruction attribute | |
| 596 skipws(); // Skip whitespace | |
| 597 if ((aexpr = get_paren_expr("attribute default expression string")) == NULL) { | |
| 598 parse_err(SYNERR, "missing '(' in op_attrib definition\n"); | |
| 599 return; | |
| 600 } | |
| 601 // Debug Stuff | |
| 602 if (_AD._adl_debug > 1) fprintf(stderr,"Attribute Expression: %s\n", aexpr); | |
| 603 | |
| 604 // Check for terminator | |
| 605 if (_curchar != ';') { | |
| 606 parse_err(SYNERR, "missing ';' in op_attrib definition\n"); | |
| 607 return; | |
| 608 } | |
| 609 next_char(); // Advance past the ';' | |
| 610 | |
| 611 // Construct the attribute, record global name, and store in ArchDesc | |
| 612 attrib = new AttributeForm(ident, OP_ATTR, aexpr); | |
| 613 _globalNames.Insert(ident, attrib); | |
| 614 _AD.addForm(attrib); | |
| 615 } | |
| 616 | |
| 617 //------------------------------definitions_parse----------------------------------- | |
| 618 void ADLParser::definitions_parse(void) { | |
| 619 skipws(); // Skip leading whitespace | |
| 620 if (_curchar == '%' && *(_ptr+1) == '{') { | |
| 621 next_char(); next_char(); // Skip "%{" | |
| 622 skipws(); | |
| 623 while (_curchar != '%' && *(_ptr+1) != '}') { | |
| 624 // Process each definition until finding closing string "%}" | |
| 625 char *token = get_ident(); | |
| 626 if (token == NULL) { | |
| 627 parse_err(SYNERR, "missing identifier inside definitions block.\n"); | |
| 628 return; | |
| 629 } | |
| 630 if (strcmp(token,"int_def")==0) { int_def_parse(); } | |
| 631 // if (strcmp(token,"str_def")==0) { str_def_parse(); } | |
| 632 skipws(); | |
| 633 } | |
| 634 } | |
| 635 else { | |
| 636 parse_err(SYNERR, "Missing %%{ ... %%} block after definitions keyword.\n"); | |
| 637 return; | |
| 638 } | |
| 639 } | |
| 640 | |
| 641 //------------------------------int_def_parse---------------------------------- | |
| 642 // Parse Example: | |
| 643 // int_def MEMORY_REF_COST ( 200, DEFAULT_COST * 2); | |
| 644 // <keyword> <name> ( <int_value>, <description> ); | |
| 645 // | |
| 646 void ADLParser::int_def_parse(void) { | |
| 647 char *name = NULL; // Name of definition | |
| 648 char *value = NULL; // its value, | |
| 649 int int_value = -1; // positive values only | |
| 650 char *description = NULL; // textual description | |
| 651 | |
| 652 // Get definition name | |
| 653 skipws(); // Skip whitespace | |
| 654 name = get_ident(); | |
| 655 if (name == NULL) { | |
| 656 parse_err(SYNERR, "missing definition name after int_def\n"); | |
| 657 return; | |
| 658 } | |
| 659 | |
| 660 // Check for value of int_def dname( integer_value [, string_expression ] ) | |
| 661 skipws(); | |
| 662 if (_curchar == '(') { | |
| 663 | |
| 664 // Parse the integer value. | |
| 665 next_char(); | |
| 666 value = get_ident(); | |
| 667 if (value == NULL) { | |
| 668 parse_err(SYNERR, "missing value in int_def\n"); | |
| 669 return; | |
| 670 } | |
| 671 if( !is_int_token(value, int_value) ) { | |
| 672 parse_err(SYNERR, "value in int_def is not recognized as integer\n"); | |
| 673 return; | |
| 674 } | |
| 675 skipws(); | |
| 676 | |
| 677 // Check for description | |
| 678 if (_curchar == ',') { | |
| 679 next_char(); // skip ',' | |
| 680 | |
| 681 description = get_expr("int_def description", ")"); | |
| 682 if (description == NULL) { | |
| 683 parse_err(SYNERR, "invalid or missing description in int_def\n"); | |
| 684 return; | |
| 685 } | |
| 686 trim(description); | |
| 687 } | |
| 688 | |
| 689 if (_curchar != ')') { | |
| 690 parse_err(SYNERR, "missing ')' in register definition statement\n"); | |
| 691 return; | |
| 692 } | |
| 693 next_char(); | |
| 694 } | |
| 695 | |
| 696 // Check for closing ';' | |
| 697 skipws(); | |
| 698 if (_curchar != ';') { | |
| 699 parse_err(SYNERR, "missing ';' after int_def\n"); | |
| 700 return; | |
| 701 } | |
| 702 next_char(); // move past ';' | |
| 703 | |
| 704 // Debug Stuff | |
| 705 if (_AD._adl_debug > 1) { | |
| 706 fprintf(stderr,"int_def: %s ( %s, %s )\n", name, | |
| 707 (value), (description ? description : "")); | |
| 708 } | |
| 709 | |
| 710 // Record new definition. | |
| 711 Expr *expr = new Expr(name, description, int_value, int_value); | |
| 712 const Expr *old_expr = _AD.globalDefs().define(name, expr); | |
| 713 if (old_expr != NULL) { | |
| 714 parse_err(SYNERR, "Duplicate definition\n"); | |
| 715 return; | |
| 716 } | |
| 717 | |
| 718 return; | |
| 719 } | |
| 720 | |
| 721 | |
| 722 //------------------------------source_parse----------------------------------- | |
| 723 void ADLParser::source_parse(void) { | |
| 724 SourceForm *source; // Encode class for instruction/operand | |
| 725 char *rule = NULL; // String representation of encode rule | |
| 726 | |
| 727 skipws(); // Skip leading whitespace | |
| 728 if ( (rule = find_cpp_block("source block")) == NULL ) { | |
| 729 parse_err(SYNERR, "incorrect or missing block for 'source'.\n"); | |
| 730 return; | |
| 731 } | |
| 732 // Debug Stuff | |
| 733 if (_AD._adl_debug > 1) fprintf(stderr,"Source Form: %s\n", rule); | |
| 734 | |
| 735 source = new SourceForm(rule); // Build new Source object | |
| 736 _AD.addForm(source); | |
| 737 // skipws(); | |
| 738 } | |
| 739 | |
| 740 //------------------------------source_hpp_parse------------------------------- | |
| 741 // Parse a source_hpp %{ ... %} block. | |
| 742 // The code gets stuck into the ad_<arch>.hpp file. | |
| 743 // If the source_hpp block appears before the register block in the AD | |
| 744 // file, it goes up at the very top of the ad_<arch>.hpp file, so that | |
| 745 // it can be used by register encodings, etc. Otherwise, it goes towards | |
| 746 // the bottom, where it's useful as a global definition to *.cpp files. | |
| 747 void ADLParser::source_hpp_parse(void) { | |
| 748 char *rule = NULL; // String representation of encode rule | |
| 749 | |
| 750 skipws(); // Skip leading whitespace | |
| 751 if ( (rule = find_cpp_block("source_hpp block")) == NULL ) { | |
| 752 parse_err(SYNERR, "incorrect or missing block for 'source_hpp'.\n"); | |
| 753 return; | |
| 754 } | |
| 755 // Debug Stuff | |
| 756 if (_AD._adl_debug > 1) fprintf(stderr,"Header Form: %s\n", rule); | |
| 757 | |
| 758 if (_AD.get_registers() == NULL) { | |
| 759 // Very early in the file, before reg_defs, we collect pre-headers. | |
| 760 PreHeaderForm* pre_header = new PreHeaderForm(rule); | |
| 761 _AD.addForm(pre_header); | |
| 762 } else { | |
| 763 // Normally, we collect header info, placed at the bottom of the hpp file. | |
| 764 HeaderForm* header = new HeaderForm(rule); | |
| 765 _AD.addForm(header); | |
| 766 } | |
| 767 } | |
| 768 | |
| 769 //------------------------------reg_parse-------------------------------------- | |
| 770 void ADLParser::reg_parse(void) { | |
| 771 | |
| 772 // Create the RegisterForm for the architecture description. | |
| 773 RegisterForm *regBlock = new RegisterForm(); // Build new Source object | |
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774 regBlock->_linenum = linenum(); |
| 0 | 775 _AD.addForm(regBlock); |
| 776 | |
| 777 skipws(); // Skip leading whitespace | |
| 778 if (_curchar == '%' && *(_ptr+1) == '{') { | |
| 779 next_char(); next_char(); // Skip "%{" | |
| 780 skipws(); | |
| 781 while (_curchar != '%' && *(_ptr+1) != '}') { | |
| 782 char *token = get_ident(); | |
| 783 if (token == NULL) { | |
| 784 parse_err(SYNERR, "missing identifier inside register block.\n"); | |
| 785 return; | |
| 786 } | |
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787 if (strcmp(token,"reg_def")==0) { reg_def_parse(); } |
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788 else if (strcmp(token,"reg_class")==0) { reg_class_parse(); } |
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789 else if (strcmp(token,"alloc_class")==0) { alloc_class_parse(); } |
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790 else if (strcmp(token,"#define")==0) { preproc_define(); } |
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791 else { parse_err(SYNERR, "bad token %s inside register block.\n", token); break; } |
| 0 | 792 skipws(); |
| 793 } | |
| 794 } | |
| 795 else { | |
| 796 parse_err(SYNERR, "Missing %c{ ... %c} block after register keyword.\n",'%','%'); | |
| 797 return; | |
| 798 } | |
| 799 | |
| 800 // Add reg_class spill_regs | |
| 801 regBlock->addSpillRegClass(); | |
| 802 } | |
| 803 | |
| 804 //------------------------------encode_parse----------------------------------- | |
| 805 void ADLParser::encode_parse(void) { | |
| 806 EncodeForm *encBlock; // Information about instruction/operand encoding | |
| 807 char *desc = NULL; // String representation of encode rule | |
| 808 | |
| 809 _AD.getForm(&encBlock); | |
| 810 if ( encBlock == NULL) { | |
| 811 // Create the EncodeForm for the architecture description. | |
| 812 encBlock = new EncodeForm(); // Build new Source object | |
| 813 _AD.addForm(encBlock); | |
| 814 } | |
| 815 | |
| 816 skipws(); // Skip leading whitespace | |
| 817 if (_curchar == '%' && *(_ptr+1) == '{') { | |
| 818 next_char(); next_char(); // Skip "%{" | |
| 819 skipws(); | |
| 820 while (_curchar != '%' && *(_ptr+1) != '}') { | |
| 821 char *token = get_ident(); | |
| 822 if (token == NULL) { | |
| 823 parse_err(SYNERR, "missing identifier inside encoding block.\n"); | |
| 824 return; | |
| 825 } | |
| 826 if (strcmp(token,"enc_class")==0) { enc_class_parse(); } | |
| 827 skipws(); | |
| 828 } | |
| 829 } | |
| 830 else { | |
| 831 parse_err(SYNERR, "Missing %c{ ... %c} block after encode keyword.\n",'%','%'); | |
| 832 return; | |
| 833 } | |
| 834 } | |
| 835 | |
| 836 //------------------------------enc_class_parse-------------------------------- | |
| 837 void ADLParser::enc_class_parse(void) { | |
| 838 char *ec_name; // Name of encoding class being defined | |
| 839 | |
| 840 // Get encoding class name | |
| 841 skipws(); // Skip whitespace | |
| 842 ec_name = get_ident(); | |
| 843 if (ec_name == NULL) { | |
| 844 parse_err(SYNERR, "missing encoding class name after encode.\n"); | |
| 845 return; | |
| 846 } | |
| 847 | |
| 848 EncClass *encoding = _AD._encode->add_EncClass(ec_name); | |
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849 encoding->_linenum = linenum(); |
| 0 | 850 |
| 851 skipws(); // Skip leading whitespace | |
| 852 // Check for optional parameter list | |
| 853 if (_curchar == '(') { | |
| 854 do { | |
| 855 char *pType = NULL; // parameter type | |
| 856 char *pName = NULL; // parameter name | |
| 857 | |
| 858 next_char(); // skip open paren & comma characters | |
| 859 skipws(); | |
| 860 if (_curchar == ')') break; | |
| 861 | |
| 862 // Get parameter type | |
| 863 pType = get_ident(); | |
| 864 if (pType == NULL) { | |
| 865 parse_err(SYNERR, "parameter type expected at %c\n", _curchar); | |
| 866 return; | |
| 867 } | |
| 868 | |
| 869 skipws(); | |
| 870 // Get parameter name | |
| 871 pName = get_ident(); | |
| 872 if (pName == NULL) { | |
| 873 parse_err(SYNERR, "parameter name expected at %c\n", _curchar); | |
| 874 return; | |
| 875 } | |
| 876 | |
| 877 // Record parameter type and name | |
| 878 encoding->add_parameter( pType, pName ); | |
| 879 | |
| 880 skipws(); | |
| 881 } while(_curchar == ','); | |
| 882 | |
| 883 if (_curchar != ')') parse_err(SYNERR, "missing ')'\n"); | |
| 884 else { | |
| 885 next_char(); // Skip ')' | |
| 886 } | |
| 887 } // Done with parameter list | |
| 888 | |
| 889 skipws(); | |
| 890 // Check for block starting delimiters | |
| 891 if ((_curchar != '%') || (*(_ptr+1) != '{')) { // If not open block | |
| 892 parse_err(SYNERR, "missing '%c{' in enc_class definition\n", '%'); | |
| 893 return; | |
| 894 } | |
| 895 next_char(); // Skip '%' | |
| 896 next_char(); // Skip '{' | |
| 897 | |
| 898 enc_class_parse_block(encoding, ec_name); | |
| 899 } | |
| 900 | |
| 901 | |
| 902 void ADLParser::enc_class_parse_block(EncClass* encoding, char* ec_name) { | |
| 903 skipws_no_preproc(); // Skip leading whitespace | |
| 904 // Prepend location descriptor, for debugging; cf. ADLParser::find_cpp_block | |
| 905 if (_AD._adlocation_debug) { | |
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906 encoding->add_code(get_line_string()); |
| 0 | 907 } |
| 908 | |
| 909 // Collect the parts of the encode description | |
| 910 // (1) strings that are passed through to output | |
| 911 // (2) replacement/substitution variable, preceeded by a '$' | |
| 912 while ( (_curchar != '%') && (*(_ptr+1) != '}') ) { | |
| 913 | |
| 914 // (1) | |
| 915 // Check if there is a string to pass through to output | |
| 916 char *start = _ptr; // Record start of the next string | |
| 917 while ((_curchar != '$') && ((_curchar != '%') || (*(_ptr+1) != '}')) ) { | |
| 918 // If at the start of a comment, skip past it | |
| 919 if( (_curchar == '/') && ((*(_ptr+1) == '/') || (*(_ptr+1) == '*')) ) { | |
| 920 skipws_no_preproc(); | |
| 921 } else { | |
| 922 // ELSE advance to the next character, or start of the next line | |
| 923 next_char_or_line(); | |
| 924 } | |
| 925 } | |
| 926 // If a string was found, terminate it and record in EncClass | |
| 927 if ( start != _ptr ) { | |
| 928 *_ptr = '\0'; // Terminate the string | |
| 929 encoding->add_code(start); | |
| 930 } | |
| 931 | |
| 932 // (2) | |
| 933 // If we are at a replacement variable, | |
| 934 // copy it and record in EncClass | |
| 2008 | 935 if (_curchar == '$') { |
| 0 | 936 // Found replacement Variable |
| 2008 | 937 char* rep_var = get_rep_var_ident_dup(); |
| 0 | 938 // Add flag to _strings list indicating we should check _rep_vars |
| 939 encoding->add_rep_var(rep_var); | |
| 940 } | |
| 941 } // end while part of format description | |
| 942 next_char(); // Skip '%' | |
| 943 next_char(); // Skip '}' | |
| 944 | |
| 945 skipws(); | |
| 946 | |
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947 if (_AD._adlocation_debug) { |
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948 encoding->add_code(end_line_marker()); |
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949 } |
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950 |
| 0 | 951 // Debug Stuff |
| 952 if (_AD._adl_debug > 1) fprintf(stderr,"EncodingClass Form: %s\n", ec_name); | |
| 953 } | |
| 954 | |
| 955 //------------------------------frame_parse----------------------------------- | |
| 956 void ADLParser::frame_parse(void) { | |
| 957 FrameForm *frame; // Information about stack-frame layout | |
| 958 char *desc = NULL; // String representation of frame | |
| 959 | |
| 960 skipws(); // Skip leading whitespace | |
| 961 | |
| 962 frame = new FrameForm(); // Build new Frame object | |
| 963 // Check for open block sequence | |
| 964 skipws(); // Skip leading whitespace | |
| 965 if (_curchar == '%' && *(_ptr+1) == '{') { | |
| 966 next_char(); next_char(); // Skip "%{" | |
| 967 skipws(); | |
| 968 while (_curchar != '%' && *(_ptr+1) != '}') { | |
| 969 char *token = get_ident(); | |
| 970 if (token == NULL) { | |
| 971 parse_err(SYNERR, "missing identifier inside frame block.\n"); | |
| 972 return; | |
| 973 } | |
| 974 if (strcmp(token,"stack_direction")==0) { | |
| 975 stack_dir_parse(frame); | |
| 976 } | |
| 977 if (strcmp(token,"sync_stack_slots")==0) { | |
| 978 sync_stack_slots_parse(frame); | |
| 979 } | |
| 980 if (strcmp(token,"frame_pointer")==0) { | |
| 981 frame_pointer_parse(frame, false); | |
| 982 } | |
| 983 if (strcmp(token,"interpreter_frame_pointer")==0) { | |
| 984 interpreter_frame_pointer_parse(frame, false); | |
| 985 // Add reg_class interpreter_frame_pointer_reg | |
| 986 if( _AD._register != NULL ) { | |
| 987 RegClass *reg_class = _AD._register->addRegClass("interpreter_frame_pointer_reg"); | |
| 988 char *interpreter_frame_pointer_reg = frame->_interpreter_frame_pointer_reg; | |
| 989 if( interpreter_frame_pointer_reg != NULL ) { | |
| 990 RegDef *regDef = _AD._register->getRegDef(interpreter_frame_pointer_reg); | |
| 991 reg_class->addReg(regDef); // add regDef to regClass | |
| 992 } | |
| 993 } | |
| 994 } | |
| 995 if (strcmp(token,"inline_cache_reg")==0) { | |
| 996 inline_cache_parse(frame, false); | |
| 997 // Add reg_class inline_cache_reg | |
| 998 if( _AD._register != NULL ) { | |
| 999 RegClass *reg_class = _AD._register->addRegClass("inline_cache_reg"); | |
| 1000 char *inline_cache_reg = frame->_inline_cache_reg; | |
| 1001 if( inline_cache_reg != NULL ) { | |
| 1002 RegDef *regDef = _AD._register->getRegDef(inline_cache_reg); | |
| 1003 reg_class->addReg(regDef); // add regDef to regClass | |
| 1004 } | |
| 1005 } | |
| 1006 } | |
| 1007 if (strcmp(token,"compiler_method_oop_reg")==0) { | |
| 1008 parse_err(WARN, "Using obsolete Token, compiler_method_oop_reg"); | |
| 1009 skipws(); | |
| 1010 } | |
| 1011 if (strcmp(token,"interpreter_method_oop_reg")==0) { | |
| 1012 interpreter_method_oop_parse(frame, false); | |
| 1013 // Add reg_class interpreter_method_oop_reg | |
| 1014 if( _AD._register != NULL ) { | |
| 1015 RegClass *reg_class = _AD._register->addRegClass("interpreter_method_oop_reg"); | |
| 1016 char *method_oop_reg = frame->_interpreter_method_oop_reg; | |
| 1017 if( method_oop_reg != NULL ) { | |
| 1018 RegDef *regDef = _AD._register->getRegDef(method_oop_reg); | |
| 1019 reg_class->addReg(regDef); // add regDef to regClass | |
| 1020 } | |
| 1021 } | |
| 1022 } | |
| 1023 if (strcmp(token,"cisc_spilling_operand_name")==0) { | |
| 1024 cisc_spilling_operand_name_parse(frame, false); | |
| 1025 } | |
| 1026 if (strcmp(token,"stack_alignment")==0) { | |
| 1027 stack_alignment_parse(frame); | |
| 1028 } | |
| 1029 if (strcmp(token,"return_addr")==0) { | |
| 1030 return_addr_parse(frame, false); | |
| 1031 } | |
| 1032 if (strcmp(token,"in_preserve_stack_slots")==0) { | |
| 1033 preserve_stack_parse(frame); | |
| 1034 } | |
| 1035 if (strcmp(token,"out_preserve_stack_slots")==0) { | |
| 1036 parse_err(WARN, "Using obsolete token, out_preserve_stack_slots"); | |
| 1037 skipws(); | |
| 1038 } | |
| 1039 if (strcmp(token,"varargs_C_out_slots_killed")==0) { | |
| 1040 frame->_varargs_C_out_slots_killed = parse_one_arg("varargs C out slots killed"); | |
| 1041 } | |
| 1042 if (strcmp(token,"calling_convention")==0) { | |
| 1043 frame->_calling_convention = calling_convention_parse(); | |
| 1044 } | |
| 1045 if (strcmp(token,"return_value")==0) { | |
| 1046 frame->_return_value = return_value_parse(); | |
| 1047 } | |
| 1048 if (strcmp(token,"c_frame_pointer")==0) { | |
| 1049 frame_pointer_parse(frame, true); | |
| 1050 } | |
| 1051 if (strcmp(token,"c_return_addr")==0) { | |
| 1052 return_addr_parse(frame, true); | |
| 1053 } | |
| 1054 if (strcmp(token,"c_calling_convention")==0) { | |
| 1055 frame->_c_calling_convention = calling_convention_parse(); | |
| 1056 } | |
| 1057 if (strcmp(token,"c_return_value")==0) { | |
| 1058 frame->_c_return_value = return_value_parse(); | |
| 1059 } | |
| 1060 | |
| 1061 skipws(); | |
| 1062 } | |
| 1063 } | |
| 1064 else { | |
| 1065 parse_err(SYNERR, "Missing %c{ ... %c} block after encode keyword.\n",'%','%'); | |
| 1066 return; | |
| 1067 } | |
| 1068 // All Java versions are required, native versions are optional | |
| 1069 if(frame->_frame_pointer == NULL) { | |
| 1070 parse_err(SYNERR, "missing frame pointer definition in frame section.\n"); | |
| 1071 return; | |
| 1072 } | |
| 1073 // !!!!! !!!!! | |
| 1074 // if(frame->_interpreter_frame_ptr_reg == NULL) { | |
| 1075 // parse_err(SYNERR, "missing interpreter frame pointer definition in frame section.\n"); | |
| 1076 // return; | |
| 1077 // } | |
| 1078 if(frame->_alignment == NULL) { | |
| 1079 parse_err(SYNERR, "missing alignment definition in frame section.\n"); | |
| 1080 return; | |
| 1081 } | |
| 1082 if(frame->_return_addr == NULL) { | |
| 1083 parse_err(SYNERR, "missing return address location in frame section.\n"); | |
| 1084 return; | |
| 1085 } | |
| 1086 if(frame->_in_preserve_slots == NULL) { | |
| 1087 parse_err(SYNERR, "missing stack slot preservation definition in frame section.\n"); | |
| 1088 return; | |
| 1089 } | |
| 1090 if(frame->_varargs_C_out_slots_killed == NULL) { | |
| 1091 parse_err(SYNERR, "missing varargs C out slots killed definition in frame section.\n"); | |
| 1092 return; | |
| 1093 } | |
| 1094 if(frame->_calling_convention == NULL) { | |
| 1095 parse_err(SYNERR, "missing calling convention definition in frame section.\n"); | |
| 1096 return; | |
| 1097 } | |
| 1098 if(frame->_return_value == NULL) { | |
| 1099 parse_err(SYNERR, "missing return value definition in frame section.\n"); | |
| 1100 return; | |
| 1101 } | |
| 1102 // Fill natives in identically with the Java versions if not present. | |
| 1103 if(frame->_c_frame_pointer == NULL) { | |
| 1104 frame->_c_frame_pointer = frame->_frame_pointer; | |
| 1105 } | |
| 1106 if(frame->_c_return_addr == NULL) { | |
| 1107 frame->_c_return_addr = frame->_return_addr; | |
| 1108 frame->_c_return_addr_loc = frame->_return_addr_loc; | |
| 1109 } | |
| 1110 if(frame->_c_calling_convention == NULL) { | |
| 1111 frame->_c_calling_convention = frame->_calling_convention; | |
| 1112 } | |
| 1113 if(frame->_c_return_value == NULL) { | |
| 1114 frame->_c_return_value = frame->_return_value; | |
| 1115 } | |
| 1116 | |
| 1117 // Debug Stuff | |
| 1118 if (_AD._adl_debug > 1) fprintf(stderr,"Frame Form: %s\n", desc); | |
| 1119 | |
| 1120 // Create the EncodeForm for the architecture description. | |
| 1121 _AD.addForm(frame); | |
| 1122 // skipws(); | |
| 1123 } | |
| 1124 | |
| 1125 //------------------------------stack_dir_parse-------------------------------- | |
| 1126 void ADLParser::stack_dir_parse(FrameForm *frame) { | |
| 1127 char *direction = parse_one_arg("stack direction entry"); | |
| 1128 if (strcmp(direction, "TOWARDS_LOW") == 0) { | |
| 1129 frame->_direction = false; | |
| 1130 } | |
| 1131 else if (strcmp(direction, "TOWARDS_HIGH") == 0) { | |
| 1132 frame->_direction = true; | |
| 1133 } | |
| 1134 else { | |
| 1135 parse_err(SYNERR, "invalid value inside stack direction entry.\n"); | |
| 1136 return; | |
| 1137 } | |
| 1138 } | |
| 1139 | |
| 1140 //------------------------------sync_stack_slots_parse------------------------- | |
| 1141 void ADLParser::sync_stack_slots_parse(FrameForm *frame) { | |
| 1142 // Assign value into frame form | |
| 1143 frame->_sync_stack_slots = parse_one_arg("sync stack slots entry"); | |
| 1144 } | |
| 1145 | |
| 1146 //------------------------------frame_pointer_parse---------------------------- | |
| 1147 void ADLParser::frame_pointer_parse(FrameForm *frame, bool native) { | |
| 1148 char *frame_pointer = parse_one_arg("frame pointer entry"); | |
| 1149 // Assign value into frame form | |
| 1150 if (native) { frame->_c_frame_pointer = frame_pointer; } | |
| 1151 else { frame->_frame_pointer = frame_pointer; } | |
| 1152 } | |
| 1153 | |
| 1154 //------------------------------interpreter_frame_pointer_parse---------------------------- | |
| 1155 void ADLParser::interpreter_frame_pointer_parse(FrameForm *frame, bool native) { | |
| 1156 frame->_interpreter_frame_pointer_reg = parse_one_arg("interpreter frame pointer entry"); | |
| 1157 } | |
| 1158 | |
| 1159 //------------------------------inline_cache_parse----------------------------- | |
| 1160 void ADLParser::inline_cache_parse(FrameForm *frame, bool native) { | |
| 1161 frame->_inline_cache_reg = parse_one_arg("inline cache reg entry"); | |
| 1162 } | |
| 1163 | |
| 1164 //------------------------------interpreter_method_oop_parse------------------ | |
| 1165 void ADLParser::interpreter_method_oop_parse(FrameForm *frame, bool native) { | |
| 1166 frame->_interpreter_method_oop_reg = parse_one_arg("method oop reg entry"); | |
| 1167 } | |
| 1168 | |
| 1169 //------------------------------cisc_spilling_operand_parse--------------------- | |
| 1170 void ADLParser::cisc_spilling_operand_name_parse(FrameForm *frame, bool native) { | |
| 1171 frame->_cisc_spilling_operand_name = parse_one_arg("cisc spilling operand name"); | |
| 1172 } | |
| 1173 | |
| 1174 //------------------------------stack_alignment_parse-------------------------- | |
| 1175 void ADLParser::stack_alignment_parse(FrameForm *frame) { | |
| 1176 char *alignment = parse_one_arg("stack alignment entry"); | |
| 1177 // Assign value into frame | |
| 1178 frame->_alignment = alignment; | |
| 1179 } | |
| 1180 | |
| 1181 //------------------------------parse_one_arg------------------------------- | |
| 1182 char *ADLParser::parse_one_arg(const char *description) { | |
| 1183 char *token = NULL; | |
| 1184 if(_curchar == '(') { | |
| 1185 next_char(); | |
| 1186 skipws(); | |
| 1187 token = get_expr(description, ")"); | |
| 1188 if (token == NULL) { | |
| 1189 parse_err(SYNERR, "missing value inside %s.\n", description); | |
| 1190 return NULL; | |
| 1191 } | |
| 1192 next_char(); // skip the close paren | |
| 1193 if(_curchar != ';') { // check for semi-colon | |
| 1194 parse_err(SYNERR, "missing %c in.\n", ';', description); | |
| 1195 return NULL; | |
| 1196 } | |
| 1197 next_char(); // skip the semi-colon | |
| 1198 } | |
| 1199 else { | |
| 1200 parse_err(SYNERR, "Missing %c in.\n", '(', description); | |
| 1201 return NULL; | |
| 1202 } | |
| 1203 | |
| 1204 trim(token); | |
| 1205 return token; | |
| 1206 } | |
| 1207 | |
| 1208 //------------------------------return_addr_parse------------------------------ | |
| 1209 void ADLParser::return_addr_parse(FrameForm *frame, bool native) { | |
| 1210 bool in_register = true; | |
| 1211 if(_curchar == '(') { | |
| 1212 next_char(); | |
| 1213 skipws(); | |
| 1214 char *token = get_ident(); | |
| 1215 if (token == NULL) { | |
| 1216 parse_err(SYNERR, "missing value inside return address entry.\n"); | |
| 1217 return; | |
| 1218 } | |
| 1219 // check for valid values for stack/register | |
| 1220 if (strcmp(token, "REG") == 0) { | |
| 1221 in_register = true; | |
| 1222 } | |
| 1223 else if (strcmp(token, "STACK") == 0) { | |
| 1224 in_register = false; | |
| 1225 } | |
| 1226 else { | |
| 1227 parse_err(SYNERR, "invalid value inside return_address entry.\n"); | |
| 1228 return; | |
| 1229 } | |
| 1230 if (native) { frame->_c_return_addr_loc = in_register; } | |
| 1231 else { frame->_return_addr_loc = in_register; } | |
| 1232 | |
| 1233 // Parse expression that specifies register or stack position | |
| 1234 skipws(); | |
| 1235 char *token2 = get_expr("return address entry", ")"); | |
| 1236 if (token2 == NULL) { | |
| 1237 parse_err(SYNERR, "missing value inside return address entry.\n"); | |
| 1238 return; | |
| 1239 } | |
| 1240 next_char(); // skip the close paren | |
| 1241 if (native) { frame->_c_return_addr = token2; } | |
| 1242 else { frame->_return_addr = token2; } | |
| 1243 | |
| 1244 if(_curchar != ';') { // check for semi-colon | |
| 1245 parse_err(SYNERR, "missing %c in return address entry.\n", ';'); | |
| 1246 return; | |
| 1247 } | |
| 1248 next_char(); // skip the semi-colon | |
| 1249 } | |
| 1250 else { | |
| 1251 parse_err(SYNERR, "Missing %c in return_address entry.\n", '('); | |
| 1252 } | |
| 1253 } | |
| 1254 | |
| 1255 //------------------------------preserve_stack_parse--------------------------- | |
| 1256 void ADLParser::preserve_stack_parse(FrameForm *frame) { | |
| 1257 if(_curchar == '(') { | |
| 1258 char *token = get_paren_expr("preserve_stack_slots"); | |
| 1259 frame->_in_preserve_slots = token; | |
| 1260 | |
| 1261 if(_curchar != ';') { // check for semi-colon | |
| 1262 parse_err(SYNERR, "missing %c in preserve stack slot entry.\n", ';'); | |
| 1263 return; | |
| 1264 } | |
| 1265 next_char(); // skip the semi-colon | |
| 1266 } | |
| 1267 else { | |
| 1268 parse_err(SYNERR, "Missing %c in preserve stack slot entry.\n", '('); | |
| 1269 } | |
| 1270 } | |
| 1271 | |
| 1272 //------------------------------calling_convention_parse----------------------- | |
| 1273 char *ADLParser::calling_convention_parse() { | |
| 1274 char *desc = NULL; // String representation of calling_convention | |
| 1275 | |
| 1276 skipws(); // Skip leading whitespace | |
| 1277 if ( (desc = find_cpp_block("calling convention block")) == NULL ) { | |
| 1278 parse_err(SYNERR, "incorrect or missing block for 'calling_convention'.\n"); | |
| 1279 } | |
| 1280 return desc; | |
| 1281 } | |
| 1282 | |
| 1283 //------------------------------return_value_parse----------------------------- | |
| 1284 char *ADLParser::return_value_parse() { | |
| 1285 char *desc = NULL; // String representation of calling_convention | |
| 1286 | |
| 1287 skipws(); // Skip leading whitespace | |
| 1288 if ( (desc = find_cpp_block("return value block")) == NULL ) { | |
| 1289 parse_err(SYNERR, "incorrect or missing block for 'return_value'.\n"); | |
| 1290 } | |
| 1291 return desc; | |
| 1292 } | |
| 1293 | |
| 1294 //------------------------------ins_pipe_parse--------------------------------- | |
| 1295 void ADLParser::ins_pipe_parse(InstructForm &instr) { | |
| 1296 char * ident; | |
| 1297 | |
| 1298 skipws(); | |
| 1299 if ( _curchar != '(' ) { // Check for delimiter | |
| 1300 parse_err(SYNERR, "missing \"(\" in ins_pipe definition\n"); | |
| 1301 return; | |
| 1302 } | |
| 1303 | |
| 1304 next_char(); | |
| 1305 ident = get_ident(); // Grab next identifier | |
| 1306 | |
| 1307 if (ident == NULL) { | |
| 1308 parse_err(SYNERR, "keyword identifier expected at %c\n", _curchar); | |
| 1309 return; | |
| 1310 } | |
| 1311 | |
| 1312 skipws(); | |
| 1313 if ( _curchar != ')' ) { // Check for delimiter | |
| 1314 parse_err(SYNERR, "missing \")\" in ins_pipe definition\n"); | |
| 1315 return; | |
| 1316 } | |
| 1317 | |
| 1318 next_char(); // skip the close paren | |
| 1319 if(_curchar != ';') { // check for semi-colon | |
| 1320 parse_err(SYNERR, "missing %c in return value entry.\n", ';'); | |
| 1321 return; | |
| 1322 } | |
| 1323 next_char(); // skip the semi-colon | |
| 1324 | |
| 1325 // Check ident for validity | |
| 1326 if (_AD._pipeline && !_AD._pipeline->_classlist.search(ident)) { | |
| 1327 parse_err(SYNERR, "\"%s\" is not a valid pipeline class\n", ident); | |
| 1328 return; | |
| 1329 } | |
| 1330 | |
| 1331 // Add this instruction to the list in the pipeline class | |
| 1332 _AD._pipeline->_classdict[ident]->is_pipeclass()->_instructs.addName(instr._ident); | |
| 1333 | |
| 1334 // Set the name of the pipeline class in the instruction | |
| 1335 instr._ins_pipe = ident; | |
| 1336 return; | |
| 1337 } | |
| 1338 | |
| 1339 //------------------------------pipe_parse------------------------------------- | |
| 1340 void ADLParser::pipe_parse(void) { | |
| 1341 PipelineForm *pipeline; // Encode class for instruction/operand | |
| 1342 char * ident; | |
| 1343 | |
| 1344 pipeline = new PipelineForm(); // Build new Source object | |
| 1345 _AD.addForm(pipeline); | |
| 1346 | |
| 1347 skipws(); // Skip leading whitespace | |
| 1348 // Check for block delimiter | |
| 1349 if ( (_curchar != '%') | |
| 1350 || ( next_char(), (_curchar != '{')) ) { | |
| 1351 parse_err(SYNERR, "missing '%{' in pipeline definition\n"); | |
| 1352 return; | |
| 1353 } | |
| 1354 next_char(); // Maintain the invariant | |
| 1355 do { | |
| 1356 ident = get_ident(); // Grab next identifier | |
| 1357 if (ident == NULL) { | |
| 1358 parse_err(SYNERR, "keyword identifier expected at %c\n", _curchar); | |
| 1359 continue; | |
| 1360 } | |
| 1361 if (!strcmp(ident, "resources" )) resource_parse(*pipeline); | |
| 1362 else if (!strcmp(ident, "pipe_desc" )) pipe_desc_parse(*pipeline); | |
| 1363 else if (!strcmp(ident, "pipe_class")) pipe_class_parse(*pipeline); | |
| 1364 else if (!strcmp(ident, "define")) { | |
| 1365 skipws(); | |
| 1366 if ( (_curchar != '%') | |
| 1367 || ( next_char(), (_curchar != '{')) ) { | |
| 1368 parse_err(SYNERR, "expected '%{'\n"); | |
| 1369 return; | |
| 1370 } | |
| 1371 next_char(); skipws(); | |
| 1372 | |
| 1373 char *node_class = get_ident(); | |
| 1374 if (node_class == NULL) { | |
| 1375 parse_err(SYNERR, "expected identifier, found \"%c\"\n", _curchar); | |
| 1376 return; | |
| 1377 } | |
| 1378 | |
| 1379 skipws(); | |
| 1380 if (_curchar != ',' && _curchar != '=') { | |
| 1381 parse_err(SYNERR, "expected `=`, found '%c'\n", _curchar); | |
| 1382 break; | |
| 1383 } | |
| 1384 next_char(); skipws(); | |
| 1385 | |
| 1386 char *pipe_class = get_ident(); | |
| 1387 if (pipe_class == NULL) { | |
| 1388 parse_err(SYNERR, "expected identifier, found \"%c\"\n", _curchar); | |
| 1389 return; | |
| 1390 } | |
| 1391 if (_curchar != ';' ) { | |
| 1392 parse_err(SYNERR, "expected `;`, found '%c'\n", _curchar); | |
| 1393 break; | |
| 1394 } | |
| 1395 next_char(); // Skip over semi-colon | |
| 1396 | |
| 1397 skipws(); | |
| 1398 if ( (_curchar != '%') | |
| 1399 || ( next_char(), (_curchar != '}')) ) { | |
| 1400 parse_err(SYNERR, "expected '%%}', found \"%c\"\n", _curchar); | |
| 1401 } | |
| 1402 next_char(); | |
| 1403 | |
| 1404 // Check ident for validity | |
| 1405 if (_AD._pipeline && !_AD._pipeline->_classlist.search(pipe_class)) { | |
| 1406 parse_err(SYNERR, "\"%s\" is not a valid pipeline class\n", pipe_class); | |
| 1407 return; | |
| 1408 } | |
| 1409 | |
| 1410 // Add this machine node to the list in the pipeline class | |
| 1411 _AD._pipeline->_classdict[pipe_class]->is_pipeclass()->_instructs.addName(node_class); | |
| 1412 | |
| 1413 MachNodeForm *machnode = new MachNodeForm(node_class); // Create new machnode form | |
| 1414 machnode->_machnode_pipe = pipe_class; | |
| 1415 | |
| 1416 _AD.addForm(machnode); | |
| 1417 } | |
| 1418 else if (!strcmp(ident, "attributes")) { | |
| 1419 bool vsi_seen = false, bhds_seen = false; | |
| 1420 | |
| 1421 skipws(); | |
| 1422 if ( (_curchar != '%') | |
| 1423 || ( next_char(), (_curchar != '{')) ) { | |
| 1424 parse_err(SYNERR, "expected '%{'\n"); | |
| 1425 return; | |
| 1426 } | |
| 1427 next_char(); skipws(); | |
| 1428 | |
| 1429 while (_curchar != '%') { | |
| 1430 ident = get_ident(); | |
| 1431 if (ident == NULL) | |
| 1432 break; | |
| 1433 | |
| 1434 if (!strcmp(ident, "variable_size_instructions")) { | |
| 1435 skipws(); | |
| 1436 if (_curchar == ';') { | |
| 1437 next_char(); skipws(); | |
| 1438 } | |
| 1439 | |
| 1440 pipeline->_variableSizeInstrs = true; | |
| 1441 vsi_seen = true; | |
| 1442 continue; | |
| 1443 } | |
| 1444 | |
| 1445 if (!strcmp(ident, "fixed_size_instructions")) { | |
| 1446 skipws(); | |
| 1447 if (_curchar == ';') { | |
| 1448 next_char(); skipws(); | |
| 1449 } | |
| 1450 | |
| 1451 pipeline->_variableSizeInstrs = false; | |
| 1452 vsi_seen = true; | |
| 1453 continue; | |
| 1454 } | |
| 1455 | |
| 1456 if (!strcmp(ident, "branch_has_delay_slot")) { | |
| 1457 skipws(); | |
| 1458 if (_curchar == ';') { | |
| 1459 next_char(); skipws(); | |
| 1460 } | |
| 1461 | |
| 1462 pipeline->_branchHasDelaySlot = true; | |
| 1463 bhds_seen = true; | |
| 1464 continue; | |
| 1465 } | |
| 1466 | |
| 1467 if (!strcmp(ident, "max_instructions_per_bundle")) { | |
| 1468 skipws(); | |
| 1469 if (_curchar != '=') { | |
| 1470 parse_err(SYNERR, "expected `=`\n"); | |
| 1471 break; | |
| 1472 } | |
| 1473 | |
| 1474 next_char(); skipws(); | |
| 1475 pipeline->_maxInstrsPerBundle = get_int(); | |
| 1476 skipws(); | |
| 1477 | |
| 1478 if (_curchar == ';') { | |
| 1479 next_char(); skipws(); | |
| 1480 } | |
| 1481 | |
| 1482 continue; | |
| 1483 } | |
| 1484 | |
| 1485 if (!strcmp(ident, "max_bundles_per_cycle")) { | |
| 1486 skipws(); | |
| 1487 if (_curchar != '=') { | |
| 1488 parse_err(SYNERR, "expected `=`\n"); | |
| 1489 break; | |
| 1490 } | |
| 1491 | |
| 1492 next_char(); skipws(); | |
| 1493 pipeline->_maxBundlesPerCycle = get_int(); | |
| 1494 skipws(); | |
| 1495 | |
| 1496 if (_curchar == ';') { | |
| 1497 next_char(); skipws(); | |
| 1498 } | |
| 1499 | |
| 1500 continue; | |
| 1501 } | |
| 1502 | |
| 1503 if (!strcmp(ident, "instruction_unit_size")) { | |
| 1504 skipws(); | |
| 1505 if (_curchar != '=') { | |
| 1506 parse_err(SYNERR, "expected `=`, found '%c'\n", _curchar); | |
| 1507 break; | |
| 1508 } | |
| 1509 | |
| 1510 next_char(); skipws(); | |
| 1511 pipeline->_instrUnitSize = get_int(); | |
| 1512 skipws(); | |
| 1513 | |
| 1514 if (_curchar == ';') { | |
| 1515 next_char(); skipws(); | |
| 1516 } | |
| 1517 | |
| 1518 continue; | |
| 1519 } | |
| 1520 | |
| 1521 if (!strcmp(ident, "bundle_unit_size")) { | |
| 1522 skipws(); | |
| 1523 if (_curchar != '=') { | |
| 1524 parse_err(SYNERR, "expected `=`, found '%c'\n", _curchar); | |
| 1525 break; | |
| 1526 } | |
| 1527 | |
| 1528 next_char(); skipws(); | |
| 1529 pipeline->_bundleUnitSize = get_int(); | |
| 1530 skipws(); | |
| 1531 | |
| 1532 if (_curchar == ';') { | |
| 1533 next_char(); skipws(); | |
| 1534 } | |
| 1535 | |
| 1536 continue; | |
| 1537 } | |
| 1538 | |
| 1539 if (!strcmp(ident, "instruction_fetch_unit_size")) { | |
| 1540 skipws(); | |
| 1541 if (_curchar != '=') { | |
| 1542 parse_err(SYNERR, "expected `=`, found '%c'\n", _curchar); | |
| 1543 break; | |
| 1544 } | |
| 1545 | |
| 1546 next_char(); skipws(); | |
| 1547 pipeline->_instrFetchUnitSize = get_int(); | |
| 1548 skipws(); | |
| 1549 | |
| 1550 if (_curchar == ';') { | |
| 1551 next_char(); skipws(); | |
| 1552 } | |
| 1553 | |
| 1554 continue; | |
| 1555 } | |
| 1556 | |
| 1557 if (!strcmp(ident, "instruction_fetch_units")) { | |
| 1558 skipws(); | |
| 1559 if (_curchar != '=') { | |
| 1560 parse_err(SYNERR, "expected `=`, found '%c'\n", _curchar); | |
| 1561 break; | |
| 1562 } | |
| 1563 | |
| 1564 next_char(); skipws(); | |
| 1565 pipeline->_instrFetchUnits = get_int(); | |
| 1566 skipws(); | |
| 1567 | |
| 1568 if (_curchar == ';') { | |
| 1569 next_char(); skipws(); | |
| 1570 } | |
| 1571 | |
| 1572 continue; | |
| 1573 } | |
| 1574 | |
| 1575 if (!strcmp(ident, "nops")) { | |
| 1576 skipws(); | |
| 1577 if (_curchar != '(') { | |
| 1578 parse_err(SYNERR, "expected `(`, found '%c'\n", _curchar); | |
| 1579 break; | |
| 1580 } | |
| 1581 | |
| 1582 next_char(); skipws(); | |
| 1583 | |
| 1584 while (_curchar != ')') { | |
| 1585 ident = get_ident(); | |
| 1586 if (ident == NULL) { | |
| 1587 parse_err(SYNERR, "expected identifier for nop instruction, found '%c'\n", _curchar); | |
| 1588 break; | |
| 1589 } | |
| 1590 | |
| 1591 pipeline->_noplist.addName(ident); | |
| 1592 pipeline->_nopcnt++; | |
| 1593 skipws(); | |
| 1594 | |
| 1595 if (_curchar == ',') { | |
| 1596 next_char(); skipws(); | |
| 1597 } | |
| 1598 } | |
| 1599 | |
| 1600 next_char(); skipws(); | |
| 1601 | |
| 1602 if (_curchar == ';') { | |
| 1603 next_char(); skipws(); | |
| 1604 } | |
| 1605 | |
| 1606 continue; | |
| 1607 } | |
| 1608 | |
| 1609 parse_err(SYNERR, "unknown specifier \"%s\"\n", ident); | |
| 1610 } | |
| 1611 | |
| 1612 if ( (_curchar != '%') | |
| 1613 || ( next_char(), (_curchar != '}')) ) { | |
| 1614 parse_err(SYNERR, "expected '%}', found \"%c\"\n", _curchar); | |
| 1615 } | |
| 1616 next_char(); skipws(); | |
| 1617 | |
| 1618 if (pipeline->_maxInstrsPerBundle == 0) | |
| 1619 parse_err(SYNERR, "\"max_instructions_per_bundle\" unspecified\n"); | |
| 1620 if (pipeline->_instrUnitSize == 0 && pipeline->_bundleUnitSize == 0) | |
| 1621 parse_err(SYNERR, "\"instruction_unit_size\" and \"bundle_unit_size\" unspecified\n"); | |
| 1622 if (pipeline->_instrFetchUnitSize == 0) | |
| 1623 parse_err(SYNERR, "\"instruction_fetch_unit_size\" unspecified\n"); | |
| 1624 if (pipeline->_instrFetchUnits == 0) | |
| 1625 parse_err(SYNERR, "\"instruction_fetch_units\" unspecified\n"); | |
| 1626 if (!vsi_seen) | |
| 1627 parse_err(SYNERR, "\"variable_size_instruction\" or \"fixed_size_instruction\" unspecified\n"); | |
| 1628 } | |
| 1629 else { // Done with staticly defined parts of instruction definition | |
| 1630 parse_err(SYNERR, "expected one of \"resources\", \"pipe_desc\", \"pipe_class\", found \"%s\"\n", ident); | |
| 1631 return; | |
| 1632 } | |
| 1633 skipws(); | |
| 1634 if (_curchar == ';') | |
| 1635 skipws(); | |
| 1636 } while(_curchar != '%'); | |
| 1637 | |
| 1638 next_char(); | |
| 1639 if (_curchar != '}') { | |
| 1640 parse_err(SYNERR, "missing \"%}\" in pipeline definition\n"); | |
| 1641 return; | |
| 1642 } | |
| 1643 | |
| 1644 next_char(); | |
| 1645 } | |
| 1646 | |
| 1647 //------------------------------resource_parse---------------------------- | |
| 1648 void ADLParser::resource_parse(PipelineForm &pipeline) { | |
| 1649 ResourceForm *resource; | |
| 1650 char * ident; | |
| 1651 char * expr; | |
| 1652 unsigned mask; | |
| 1653 pipeline._rescount = 0; | |
| 1654 | |
| 1655 skipws(); // Skip leading whitespace | |
| 1656 | |
| 1657 if (_curchar != '(') { | |
| 1658 parse_err(SYNERR, "missing \"(\" in resource definition\n"); | |
| 1659 return; | |
| 1660 } | |
| 1661 | |
| 1662 do { | |
| 1663 next_char(); // Skip "(" or "," | |
| 1664 ident = get_ident(); // Grab next identifier | |
| 1665 | |
| 1666 if (ident == NULL) { | |
| 1667 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
| 1668 return; | |
| 1669 } | |
| 1670 skipws(); | |
| 1671 | |
| 1672 if (_curchar != '=') { | |
| 1673 mask = (1 << pipeline._rescount++); | |
| 1674 } | |
| 1675 else { | |
| 1676 next_char(); skipws(); | |
| 1677 expr = get_ident(); // Grab next identifier | |
| 1678 if (expr == NULL) { | |
| 1679 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
| 1680 return; | |
| 1681 } | |
| 1682 resource = (ResourceForm *) pipeline._resdict[expr]; | |
| 1683 if (resource == NULL) { | |
| 1684 parse_err(SYNERR, "resource \"%s\" is not defined\n", expr); | |
| 1685 return; | |
| 1686 } | |
| 1687 mask = resource->mask(); | |
| 1688 | |
| 1689 skipws(); | |
| 1690 while (_curchar == '|') { | |
| 1691 next_char(); skipws(); | |
| 1692 | |
| 1693 expr = get_ident(); // Grab next identifier | |
| 1694 if (expr == NULL) { | |
| 1695 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
| 1696 return; | |
| 1697 } | |
| 1698 | |
| 1699 resource = (ResourceForm *) pipeline._resdict[expr]; // Look up the value | |
| 1700 if (resource == NULL) { | |
| 1701 parse_err(SYNERR, "resource \"%s\" is not defined\n", expr); | |
| 1702 return; | |
| 1703 } | |
| 1704 | |
| 1705 mask |= resource->mask(); | |
| 1706 skipws(); | |
| 1707 } | |
| 1708 } | |
| 1709 | |
| 1710 resource = new ResourceForm(mask); | |
| 1711 | |
| 1712 pipeline._resdict.Insert(ident, resource); | |
| 1713 pipeline._reslist.addName(ident); | |
| 1714 } while (_curchar == ','); | |
| 1715 | |
| 1716 if (_curchar != ')') { | |
| 1717 parse_err(SYNERR, "\")\" expected at \"%c\"\n", _curchar); | |
| 1718 return; | |
| 1719 } | |
| 1720 | |
| 1721 next_char(); // Skip ")" | |
| 1722 if (_curchar == ';') | |
| 1723 next_char(); // Skip ";" | |
| 1724 } | |
| 1725 | |
| 1726 //------------------------------resource_parse---------------------------- | |
| 1727 void ADLParser::pipe_desc_parse(PipelineForm &pipeline) { | |
| 1728 char * ident; | |
| 1729 | |
| 1730 skipws(); // Skip leading whitespace | |
| 1731 | |
| 1732 if (_curchar != '(') { | |
| 1733 parse_err(SYNERR, "missing \"(\" in pipe_desc definition\n"); | |
| 1734 return; | |
| 1735 } | |
| 1736 | |
| 1737 do { | |
| 1738 next_char(); // Skip "(" or "," | |
| 1739 ident = get_ident(); // Grab next identifier | |
| 1740 if (ident == NULL) { | |
| 1741 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
| 1742 return; | |
| 1743 } | |
| 1744 | |
| 1745 // Add the name to the list | |
| 1746 pipeline._stages.addName(ident); | |
| 1747 pipeline._stagecnt++; | |
| 1748 | |
| 1749 skipws(); | |
| 1750 } while (_curchar == ','); | |
| 1751 | |
| 1752 if (_curchar != ')') { | |
| 1753 parse_err(SYNERR, "\")\" expected at \"%c\"\n", _curchar); | |
| 1754 return; | |
| 1755 } | |
| 1756 | |
| 1757 next_char(); // Skip ")" | |
| 1758 if (_curchar == ';') | |
| 1759 next_char(); // Skip ";" | |
| 1760 } | |
| 1761 | |
| 1762 //------------------------------pipe_class_parse-------------------------- | |
| 1763 void ADLParser::pipe_class_parse(PipelineForm &pipeline) { | |
| 1764 PipeClassForm *pipe_class; | |
| 1765 char * ident; | |
| 1766 char * stage; | |
| 1767 char * read_or_write; | |
| 1768 int is_write; | |
| 1769 int is_read; | |
| 1770 OperandForm *oper; | |
| 1771 | |
| 1772 skipws(); // Skip leading whitespace | |
| 1773 | |
| 1774 ident = get_ident(); // Grab next identifier | |
| 1775 | |
| 1776 if (ident == NULL) { | |
| 1777 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
| 1778 return; | |
| 1779 } | |
| 1780 | |
| 1781 // Create a record for the pipe_class | |
| 1782 pipe_class = new PipeClassForm(ident, ++pipeline._classcnt); | |
| 1783 pipeline._classdict.Insert(ident, pipe_class); | |
| 1784 pipeline._classlist.addName(ident); | |
| 1785 | |
| 1786 // Then get the operands | |
| 1787 skipws(); | |
| 1788 if (_curchar != '(') { | |
| 1789 parse_err(SYNERR, "missing \"(\" in pipe_class definition\n"); | |
| 1790 } | |
| 1791 // Parse the operand list | |
| 1792 else get_oplist(pipe_class->_parameters, pipe_class->_localNames); | |
| 1793 skipws(); // Skip leading whitespace | |
| 1794 // Check for block delimiter | |
| 1795 if ( (_curchar != '%') | |
| 1796 || ( next_char(), (_curchar != '{')) ) { | |
| 1797 parse_err(SYNERR, "missing \"%{\" in pipe_class definition\n"); | |
| 1798 return; | |
| 1799 } | |
| 1800 next_char(); | |
| 1801 | |
| 1802 do { | |
| 1803 ident = get_ident(); // Grab next identifier | |
| 1804 if (ident == NULL) { | |
| 1805 parse_err(SYNERR, "keyword identifier expected at \"%c\"\n", _curchar); | |
| 1806 continue; | |
| 1807 } | |
| 1808 skipws(); | |
| 1809 | |
| 1810 if (!strcmp(ident, "fixed_latency")) { | |
| 1811 skipws(); | |
| 1812 if (_curchar != '(') { | |
| 1813 parse_err(SYNERR, "missing \"(\" in latency definition\n"); | |
| 1814 return; | |
| 1815 } | |
| 1816 next_char(); skipws(); | |
| 1817 if( !isdigit(_curchar) ) { | |
| 1818 parse_err(SYNERR, "number expected for \"%c\" in latency definition\n", _curchar); | |
| 1819 return; | |
| 1820 } | |
| 1821 int fixed_latency = get_int(); | |
| 1822 skipws(); | |
| 1823 if (_curchar != ')') { | |
| 1824 parse_err(SYNERR, "missing \")\" in latency definition\n"); | |
| 1825 return; | |
| 1826 } | |
| 1827 next_char(); skipws(); | |
| 1828 if (_curchar != ';') { | |
| 1829 parse_err(SYNERR, "missing \";\" in latency definition\n"); | |
| 1830 return; | |
| 1831 } | |
| 1832 | |
| 1833 pipe_class->setFixedLatency(fixed_latency); | |
| 1834 next_char(); skipws(); | |
| 1835 continue; | |
| 1836 } | |
| 1837 | |
| 1838 if (!strcmp(ident, "zero_instructions") || | |
| 1839 !strcmp(ident, "no_instructions")) { | |
| 1840 skipws(); | |
| 1841 if (_curchar != ';') { | |
| 1842 parse_err(SYNERR, "missing \";\" in latency definition\n"); | |
| 1843 return; | |
| 1844 } | |
| 1845 | |
| 1846 pipe_class->setInstructionCount(0); | |
| 1847 next_char(); skipws(); | |
| 1848 continue; | |
| 1849 } | |
| 1850 | |
| 1851 if (!strcmp(ident, "one_instruction_with_delay_slot") || | |
| 1852 !strcmp(ident, "single_instruction_with_delay_slot")) { | |
| 1853 skipws(); | |
| 1854 if (_curchar != ';') { | |
| 1855 parse_err(SYNERR, "missing \";\" in latency definition\n"); | |
| 1856 return; | |
| 1857 } | |
| 1858 | |
| 1859 pipe_class->setInstructionCount(1); | |
| 1860 pipe_class->setBranchDelay(true); | |
| 1861 next_char(); skipws(); | |
| 1862 continue; | |
| 1863 } | |
| 1864 | |
| 1865 if (!strcmp(ident, "one_instruction") || | |
| 1866 !strcmp(ident, "single_instruction")) { | |
| 1867 skipws(); | |
| 1868 if (_curchar != ';') { | |
| 1869 parse_err(SYNERR, "missing \";\" in latency definition\n"); | |
| 1870 return; | |
| 1871 } | |
| 1872 | |
| 1873 pipe_class->setInstructionCount(1); | |
| 1874 next_char(); skipws(); | |
| 1875 continue; | |
| 1876 } | |
| 1877 | |
| 1878 if (!strcmp(ident, "instructions_in_first_bundle") || | |
| 1879 !strcmp(ident, "instruction_count")) { | |
| 1880 skipws(); | |
| 1881 | |
| 1882 int number_of_instructions = 1; | |
| 1883 | |
| 1884 if (_curchar != '(') { | |
| 1885 parse_err(SYNERR, "\"(\" expected at \"%c\"\n", _curchar); | |
| 1886 continue; | |
| 1887 } | |
| 1888 | |
| 1889 next_char(); skipws(); | |
| 1890 number_of_instructions = get_int(); | |
| 1891 | |
| 1892 skipws(); | |
| 1893 if (_curchar != ')') { | |
| 1894 parse_err(SYNERR, "\")\" expected at \"%c\"\n", _curchar); | |
| 1895 continue; | |
| 1896 } | |
| 1897 | |
| 1898 next_char(); skipws(); | |
| 1899 if (_curchar != ';') { | |
| 1900 parse_err(SYNERR, "missing \";\" in latency definition\n"); | |
| 1901 return; | |
| 1902 } | |
| 1903 | |
| 1904 pipe_class->setInstructionCount(number_of_instructions); | |
| 1905 next_char(); skipws(); | |
| 1906 continue; | |
| 1907 } | |
| 1908 | |
| 1909 if (!strcmp(ident, "multiple_bundles")) { | |
| 1910 skipws(); | |
| 1911 if (_curchar != ';') { | |
| 1912 parse_err(SYNERR, "missing \";\" after multiple bundles\n"); | |
| 1913 return; | |
| 1914 } | |
| 1915 | |
| 1916 pipe_class->setMultipleBundles(true); | |
| 1917 next_char(); skipws(); | |
| 1918 continue; | |
| 1919 } | |
| 1920 | |
| 1921 if (!strcmp(ident, "has_delay_slot")) { | |
| 1922 skipws(); | |
| 1923 if (_curchar != ';') { | |
| 1924 parse_err(SYNERR, "missing \";\" after \"has_delay_slot\"\n"); | |
| 1925 return; | |
| 1926 } | |
| 1927 | |
| 1928 pipe_class->setBranchDelay(true); | |
| 1929 next_char(); skipws(); | |
| 1930 continue; | |
| 1931 } | |
| 1932 | |
| 1933 if (!strcmp(ident, "force_serialization")) { | |
| 1934 skipws(); | |
| 1935 if (_curchar != ';') { | |
| 1936 parse_err(SYNERR, "missing \";\" after \"force_serialization\"\n"); | |
| 1937 return; | |
| 1938 } | |
| 1939 | |
| 1940 pipe_class->setForceSerialization(true); | |
| 1941 next_char(); skipws(); | |
| 1942 continue; | |
| 1943 } | |
| 1944 | |
| 1945 if (!strcmp(ident, "may_have_no_code")) { | |
| 1946 skipws(); | |
| 1947 if (_curchar != ';') { | |
| 1948 parse_err(SYNERR, "missing \";\" after \"may_have_no_code\"\n"); | |
| 1949 return; | |
| 1950 } | |
| 1951 | |
| 1952 pipe_class->setMayHaveNoCode(true); | |
| 1953 next_char(); skipws(); | |
| 1954 continue; | |
| 1955 } | |
| 1956 | |
| 1957 const Form *parm = pipe_class->_localNames[ident]; | |
| 1958 if (parm != NULL) { | |
| 1959 oper = parm->is_operand(); | |
| 1960 if (oper == NULL && !parm->is_opclass()) { | |
| 1961 parse_err(SYNERR, "operand name expected at %s\n", ident); | |
| 1962 continue; | |
| 1963 } | |
| 1964 | |
| 1965 if (_curchar != ':') { | |
| 1966 parse_err(SYNERR, "\":\" expected at \"%c\"\n", _curchar); | |
| 1967 continue; | |
| 1968 } | |
| 1969 next_char(); skipws(); | |
| 1970 stage = get_ident(); | |
| 1971 if (stage == NULL) { | |
| 1972 parse_err(SYNERR, "pipeline stage identifier expected at \"%c\"\n", _curchar); | |
| 1973 continue; | |
| 1974 } | |
| 1975 | |
| 1976 skipws(); | |
| 1977 if (_curchar != '(') { | |
| 1978 parse_err(SYNERR, "\"(\" expected at \"%c\"\n", _curchar); | |
| 1979 continue; | |
| 1980 } | |
| 1981 | |
| 1982 next_char(); | |
| 1983 read_or_write = get_ident(); | |
| 1984 if (read_or_write == NULL) { | |
| 1985 parse_err(SYNERR, "\"read\" or \"write\" expected at \"%c\"\n", _curchar); | |
| 1986 continue; | |
| 1987 } | |
| 1988 | |
| 1989 is_read = strcmp(read_or_write, "read") == 0; | |
| 1990 is_write = strcmp(read_or_write, "write") == 0; | |
| 1991 if (!is_read && !is_write) { | |
| 1992 parse_err(SYNERR, "\"read\" or \"write\" expected at \"%c\"\n", _curchar); | |
| 1993 continue; | |
| 1994 } | |
| 1995 | |
| 1996 skipws(); | |
| 1997 if (_curchar != ')') { | |
| 1998 parse_err(SYNERR, "\")\" expected at \"%c\"\n", _curchar); | |
| 1999 continue; | |
| 2000 } | |
| 2001 | |
| 2002 next_char(); skipws(); | |
| 2003 int more_instrs = 0; | |
| 2004 if (_curchar == '+') { | |
| 2005 next_char(); skipws(); | |
| 2006 if (_curchar < '0' || _curchar > '9') { | |
| 2007 parse_err(SYNERR, "<number> expected at \"%c\"\n", _curchar); | |
| 2008 continue; | |
| 2009 } | |
| 2010 while (_curchar >= '0' && _curchar <= '9') { | |
| 2011 more_instrs *= 10; | |
| 2012 more_instrs += _curchar - '0'; | |
| 2013 next_char(); | |
| 2014 } | |
| 2015 skipws(); | |
| 2016 } | |
| 2017 | |
| 2018 PipeClassOperandForm *pipe_operand = new PipeClassOperandForm(stage, is_write, more_instrs); | |
| 2019 pipe_class->_localUsage.Insert(ident, pipe_operand); | |
| 2020 | |
| 2021 if (_curchar == '%') | |
| 2022 continue; | |
| 2023 | |
| 2024 if (_curchar != ';') { | |
| 2025 parse_err(SYNERR, "\";\" expected at \"%c\"\n", _curchar); | |
| 2026 continue; | |
| 2027 } | |
| 2028 next_char(); skipws(); | |
| 2029 continue; | |
| 2030 } | |
| 2031 | |
| 2032 // Scan for Resource Specifier | |
| 2033 const Form *res = pipeline._resdict[ident]; | |
| 2034 if (res != NULL) { | |
| 2035 int cyclecnt = 1; | |
| 2036 if (_curchar != ':') { | |
| 2037 parse_err(SYNERR, "\":\" expected at \"%c\"\n", _curchar); | |
| 2038 continue; | |
| 2039 } | |
| 2040 next_char(); skipws(); | |
| 2041 stage = get_ident(); | |
| 2042 if (stage == NULL) { | |
| 2043 parse_err(SYNERR, "pipeline stage identifier expected at \"%c\"\n", _curchar); | |
| 2044 continue; | |
| 2045 } | |
| 2046 | |
| 2047 skipws(); | |
| 2048 if (_curchar == '(') { | |
| 2049 next_char(); | |
| 2050 cyclecnt = get_int(); | |
| 2051 | |
| 2052 skipws(); | |
| 2053 if (_curchar != ')') { | |
| 2054 parse_err(SYNERR, "\")\" expected at \"%c\"\n", _curchar); | |
| 2055 continue; | |
| 2056 } | |
| 2057 | |
| 2058 next_char(); skipws(); | |
| 2059 } | |
| 2060 | |
| 2061 PipeClassResourceForm *resource = new PipeClassResourceForm(ident, stage, cyclecnt); | |
| 2062 int stagenum = pipeline._stages.index(stage); | |
| 2063 if (pipeline._maxcycleused < (stagenum+cyclecnt)) | |
| 2064 pipeline._maxcycleused = (stagenum+cyclecnt); | |
| 2065 pipe_class->_resUsage.addForm(resource); | |
| 2066 | |
| 2067 if (_curchar == '%') | |
| 2068 continue; | |
| 2069 | |
| 2070 if (_curchar != ';') { | |
| 2071 parse_err(SYNERR, "\";\" expected at \"%c\"\n", _curchar); | |
| 2072 continue; | |
| 2073 } | |
| 2074 next_char(); skipws(); | |
| 2075 continue; | |
| 2076 } | |
| 2077 | |
| 2078 parse_err(SYNERR, "resource expected at \"%s\"\n", ident); | |
| 2079 return; | |
| 2080 } while(_curchar != '%'); | |
| 2081 | |
| 2082 next_char(); | |
| 2083 if (_curchar != '}') { | |
| 2084 parse_err(SYNERR, "missing \"%}\" in pipe_class definition\n"); | |
| 2085 return; | |
| 2086 } | |
| 2087 | |
| 2088 next_char(); | |
| 2089 } | |
| 2090 | |
| 2091 //------------------------------peep_parse------------------------------------- | |
| 2092 void ADLParser::peep_parse(void) { | |
| 2093 Peephole *peep; // Pointer to current peephole rule form | |
| 2094 char *desc = NULL; // String representation of rule | |
| 2095 | |
| 2096 skipws(); // Skip leading whitespace | |
| 2097 | |
| 2098 peep = new Peephole(); // Build new Peephole object | |
| 2099 // Check for open block sequence | |
| 2100 skipws(); // Skip leading whitespace | |
| 2101 if (_curchar == '%' && *(_ptr+1) == '{') { | |
| 2102 next_char(); next_char(); // Skip "%{" | |
| 2103 skipws(); | |
| 2104 while (_curchar != '%' && *(_ptr+1) != '}') { | |
| 2105 char *token = get_ident(); | |
| 2106 if (token == NULL) { | |
| 2107 parse_err(SYNERR, "missing identifier inside peephole rule.\n"); | |
| 2108 return; | |
| 2109 } | |
| 2110 // check for legal subsections of peephole rule | |
| 2111 if (strcmp(token,"peepmatch")==0) { | |
| 2112 peep_match_parse(*peep); } | |
| 2113 else if (strcmp(token,"peepconstraint")==0) { | |
| 2114 peep_constraint_parse(*peep); } | |
| 2115 else if (strcmp(token,"peepreplace")==0) { | |
| 2116 peep_replace_parse(*peep); } | |
| 2117 else { | |
| 2118 parse_err(SYNERR, "expected peepmatch, peepconstraint, or peepreplace for identifier %s.\n", token); | |
| 2119 } | |
| 2120 skipws(); | |
| 2121 } | |
| 2122 } | |
| 2123 else { | |
| 2124 parse_err(SYNERR, "Missing %%{ ... %%} block after peephole keyword.\n"); | |
| 2125 return; | |
| 2126 } | |
| 2127 next_char(); // Skip past '%' | |
| 2128 next_char(); // Skip past '}' | |
| 2129 } | |
| 2130 | |
| 2131 // ******************** Private Level 2 Parse Functions ******************** | |
| 2132 //------------------------------constraint_parse------------------------------ | |
| 2133 Constraint *ADLParser::constraint_parse(void) { | |
| 2134 char *func; | |
| 2135 char *arg; | |
| 2136 | |
| 2137 // Check for constraint expression | |
| 2138 skipws(); | |
| 2139 if (_curchar != '(') { | |
| 2140 parse_err(SYNERR, "missing constraint expression, (...)\n"); | |
| 2141 return NULL; | |
| 2142 } | |
| 2143 next_char(); // Skip past '(' | |
| 2144 | |
| 2145 // Get constraint function | |
| 2146 skipws(); | |
| 2147 func = get_ident(); | |
| 2148 if (func == NULL) { | |
| 2149 parse_err(SYNERR, "missing function in constraint expression.\n"); | |
| 2150 return NULL; | |
| 2151 } | |
| 2152 if (strcmp(func,"ALLOC_IN_RC")==0 | |
| 2153 || strcmp(func,"IS_R_CLASS")==0) { | |
| 2154 // Check for '(' before argument | |
| 2155 skipws(); | |
| 2156 if (_curchar != '(') { | |
| 2157 parse_err(SYNERR, "missing '(' for constraint function's argument.\n"); | |
| 2158 return NULL; | |
| 2159 } | |
| 2160 next_char(); | |
| 2161 | |
| 2162 // Get it's argument | |
| 2163 skipws(); | |
| 2164 arg = get_ident(); | |
| 2165 if (arg == NULL) { | |
| 2166 parse_err(SYNERR, "missing argument for constraint function %s\n",func); | |
| 2167 return NULL; | |
| 2168 } | |
| 2169 // Check for ')' after argument | |
| 2170 skipws(); | |
| 2171 if (_curchar != ')') { | |
| 2172 parse_err(SYNERR, "missing ')' after constraint function argument %s\n",arg); | |
| 2173 return NULL; | |
| 2174 } | |
| 2175 next_char(); | |
| 2176 } else { | |
| 2177 parse_err(SYNERR, "Invalid constraint function %s\n",func); | |
| 2178 return NULL; | |
| 2179 } | |
| 2180 | |
| 2181 // Check for closing paren and ';' | |
| 2182 skipws(); | |
| 2183 if (_curchar != ')') { | |
| 2184 parse_err(SYNERR, "Missing ')' for constraint function %s\n",func); | |
| 2185 return NULL; | |
| 2186 } | |
| 2187 next_char(); | |
| 2188 skipws(); | |
| 2189 if (_curchar != ';') { | |
| 2190 parse_err(SYNERR, "Missing ';' after constraint.\n"); | |
| 2191 return NULL; | |
| 2192 } | |
| 2193 next_char(); | |
| 2194 | |
| 2195 // Create new "Constraint" | |
| 2196 Constraint *constraint = new Constraint(func,arg); | |
| 2197 return constraint; | |
| 2198 } | |
| 2199 | |
| 2200 //------------------------------constr_parse----------------------------------- | |
| 2201 ConstructRule *ADLParser::construct_parse(void) { | |
| 2202 return NULL; | |
| 2203 } | |
| 2204 | |
| 2205 | |
| 2206 //------------------------------reg_def_parse---------------------------------- | |
| 2207 void ADLParser::reg_def_parse(void) { | |
| 2208 char *rname; // Name of register being defined | |
| 2209 | |
| 2210 // Get register name | |
| 2211 skipws(); // Skip whitespace | |
| 2212 rname = get_ident(); | |
| 2213 if (rname == NULL) { | |
| 2214 parse_err(SYNERR, "missing register name after reg_def\n"); | |
| 2215 return; | |
| 2216 } | |
| 2217 | |
| 2218 // Check for definition of register calling convention (save on call, ...), | |
| 2219 // register save type, and register encoding value. | |
| 2220 skipws(); | |
| 2221 char *callconv = NULL; | |
| 2222 char *c_conv = NULL; | |
| 2223 char *idealtype = NULL; | |
| 2224 char *encoding = NULL; | |
| 2225 char *concrete = NULL; | |
| 2226 if (_curchar == '(') { | |
| 2227 next_char(); | |
| 2228 callconv = get_ident(); | |
| 2229 // Parse the internal calling convention, must be NS, SOC, SOE, or AS. | |
| 2230 if (callconv == NULL) { | |
| 2231 parse_err(SYNERR, "missing register calling convention value\n"); | |
| 2232 return; | |
| 2233 } | |
| 2234 if(strcmp(callconv, "SOC") && strcmp(callconv,"SOE") && | |
| 2235 strcmp(callconv, "NS") && strcmp(callconv, "AS")) { | |
| 2236 parse_err(SYNERR, "invalid value for register calling convention\n"); | |
| 2237 } | |
| 2238 skipws(); | |
| 2239 if (_curchar != ',') { | |
| 2240 parse_err(SYNERR, "missing comma in register definition statement\n"); | |
| 2241 return; | |
| 2242 } | |
| 2243 next_char(); | |
| 2244 | |
| 2245 // Parse the native calling convention, must be NS, SOC, SOE, AS | |
| 2246 c_conv = get_ident(); | |
| 2247 if (c_conv == NULL) { | |
| 2248 parse_err(SYNERR, "missing register native calling convention value\n"); | |
| 2249 return; | |
| 2250 } | |
| 2251 if(strcmp(c_conv, "SOC") && strcmp(c_conv,"SOE") && | |
| 2252 strcmp(c_conv, "NS") && strcmp(c_conv, "AS")) { | |
| 2253 parse_err(SYNERR, "invalid value for register calling convention\n"); | |
| 2254 } | |
| 2255 skipws(); | |
| 2256 if (_curchar != ',') { | |
| 2257 parse_err(SYNERR, "missing comma in register definition statement\n"); | |
| 2258 return; | |
| 2259 } | |
| 2260 next_char(); | |
| 2261 skipws(); | |
| 2262 | |
| 2263 // Parse the ideal save type | |
| 2264 idealtype = get_ident(); | |
| 2265 if (idealtype == NULL) { | |
| 2266 parse_err(SYNERR, "missing register save type value\n"); | |
| 2267 return; | |
| 2268 } | |
| 2269 skipws(); | |
| 2270 if (_curchar != ',') { | |
| 2271 parse_err(SYNERR, "missing comma in register definition statement\n"); | |
| 2272 return; | |
| 2273 } | |
| 2274 next_char(); | |
| 2275 skipws(); | |
| 2276 | |
| 2277 // Parse the encoding value | |
| 2278 encoding = get_expr("encoding", ","); | |
| 2279 if (encoding == NULL) { | |
| 2280 parse_err(SYNERR, "missing register encoding value\n"); | |
| 2281 return; | |
| 2282 } | |
| 2283 trim(encoding); | |
| 2284 if (_curchar != ',') { | |
| 2285 parse_err(SYNERR, "missing comma in register definition statement\n"); | |
| 2286 return; | |
| 2287 } | |
| 2288 next_char(); | |
| 2289 skipws(); | |
| 2290 // Parse the concrete name type | |
| 2291 // concrete = get_ident(); | |
| 2292 concrete = get_expr("concrete", ")"); | |
| 2293 if (concrete == NULL) { | |
| 2294 parse_err(SYNERR, "missing vm register name value\n"); | |
| 2295 return; | |
| 2296 } | |
| 2297 | |
| 2298 if (_curchar != ')') { | |
| 2299 parse_err(SYNERR, "missing ')' in register definition statement\n"); | |
| 2300 return; | |
| 2301 } | |
| 2302 next_char(); | |
| 2303 } | |
| 2304 | |
| 2305 // Check for closing ';' | |
| 2306 skipws(); | |
| 2307 if (_curchar != ';') { | |
| 2308 parse_err(SYNERR, "missing ';' after reg_def\n"); | |
| 2309 return; | |
| 2310 } | |
| 2311 next_char(); // move past ';' | |
| 2312 | |
| 2313 // Debug Stuff | |
| 2314 if (_AD._adl_debug > 1) { | |
| 2315 fprintf(stderr,"Register Definition: %s ( %s, %s %s )\n", rname, | |
| 2316 (callconv ? callconv : ""), (c_conv ? c_conv : ""), concrete); | |
| 2317 } | |
| 2318 | |
| 2319 // Record new register definition. | |
| 2320 _AD._register->addRegDef(rname, callconv, c_conv, idealtype, encoding, concrete); | |
| 2321 return; | |
| 2322 } | |
| 2323 | |
| 2324 //------------------------------reg_class_parse-------------------------------- | |
| 2325 void ADLParser::reg_class_parse(void) { | |
| 2326 char *cname; // Name of register class being defined | |
| 2327 | |
| 2328 // Get register class name | |
| 2329 skipws(); // Skip leading whitespace | |
| 2330 cname = get_ident(); | |
| 2331 if (cname == NULL) { | |
| 2332 parse_err(SYNERR, "missing register class name after 'reg_class'\n"); | |
| 2333 return; | |
| 2334 } | |
| 2335 // Debug Stuff | |
| 2336 if (_AD._adl_debug >1) fprintf(stderr,"Register Class: %s\n", cname); | |
| 2337 | |
| 2338 RegClass *reg_class = _AD._register->addRegClass(cname); | |
| 2339 | |
| 2340 // Collect registers in class | |
| 2341 skipws(); | |
| 2342 if (_curchar == '(') { | |
| 2343 next_char(); // Skip '(' | |
| 2344 skipws(); | |
| 2345 while (_curchar != ')') { | |
| 2346 char *rname = get_ident(); | |
| 2347 if (rname==NULL) { | |
| 2348 parse_err(SYNERR, "missing identifier inside reg_class list.\n"); | |
| 2349 return; | |
| 2350 } | |
| 2351 RegDef *regDef = _AD._register->getRegDef(rname); | |
|
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2352 if (!regDef) { |
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2353 parse_err(SEMERR, "unknown identifier %s inside reg_class list.\n", rname); |
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2354 } else { |
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2355 reg_class->addReg(regDef); // add regDef to regClass |
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2356 } |
| 0 | 2357 |
| 2358 // Check for ',' and position to next token. | |
| 2359 skipws(); | |
| 2360 if (_curchar == ',') { | |
| 2361 next_char(); // Skip trailing ',' | |
| 2362 skipws(); | |
| 2363 } | |
| 2364 } | |
| 2365 next_char(); // Skip closing ')' | |
| 2366 } | |
| 2367 | |
| 2368 // Check for terminating ';' | |
| 2369 skipws(); | |
| 2370 if (_curchar != ';') { | |
| 2371 parse_err(SYNERR, "missing ';' at end of reg_class definition.\n"); | |
| 2372 return; | |
| 2373 } | |
| 2374 next_char(); // Skip trailing ';' | |
| 2375 | |
| 2376 // Check RegClass size, must be <= 32 registers in class. | |
| 2377 | |
| 2378 return; | |
| 2379 } | |
| 2380 | |
| 2381 //------------------------------alloc_class_parse------------------------------ | |
| 2382 void ADLParser::alloc_class_parse(void) { | |
| 2383 char *name; // Name of allocation class being defined | |
| 2384 | |
| 2385 // Get allocation class name | |
| 2386 skipws(); // Skip leading whitespace | |
| 2387 name = get_ident(); | |
| 2388 if (name == NULL) { | |
| 2389 parse_err(SYNERR, "missing allocation class name after 'reg_class'\n"); | |
| 2390 return; | |
| 2391 } | |
| 2392 // Debug Stuff | |
| 2393 if (_AD._adl_debug >1) fprintf(stderr,"Allocation Class: %s\n", name); | |
| 2394 | |
| 2395 AllocClass *alloc_class = _AD._register->addAllocClass(name); | |
| 2396 | |
| 2397 // Collect registers in class | |
| 2398 skipws(); | |
| 2399 if (_curchar == '(') { | |
| 2400 next_char(); // Skip '(' | |
| 2401 skipws(); | |
| 2402 while (_curchar != ')') { | |
| 2403 char *rname = get_ident(); | |
| 2404 if (rname==NULL) { | |
| 2405 parse_err(SYNERR, "missing identifier inside reg_class list.\n"); | |
| 2406 return; | |
| 2407 } | |
| 2408 // Check if name is a RegDef | |
| 2409 RegDef *regDef = _AD._register->getRegDef(rname); | |
| 2410 if (regDef) { | |
| 2411 alloc_class->addReg(regDef); // add regDef to allocClass | |
| 2412 } else { | |
| 2413 | |
| 2414 // name must be a RegDef or a RegClass | |
| 2415 parse_err(SYNERR, "name %s should be a previously defined reg_def.\n", rname); | |
| 2416 return; | |
| 2417 } | |
| 2418 | |
| 2419 // Check for ',' and position to next token. | |
| 2420 skipws(); | |
| 2421 if (_curchar == ',') { | |
| 2422 next_char(); // Skip trailing ',' | |
| 2423 skipws(); | |
| 2424 } | |
| 2425 } | |
| 2426 next_char(); // Skip closing ')' | |
| 2427 } | |
| 2428 | |
| 2429 // Check for terminating ';' | |
| 2430 skipws(); | |
| 2431 if (_curchar != ';') { | |
| 2432 parse_err(SYNERR, "missing ';' at end of reg_class definition.\n"); | |
| 2433 return; | |
| 2434 } | |
| 2435 next_char(); // Skip trailing ';' | |
| 2436 | |
| 2437 return; | |
| 2438 } | |
| 2439 | |
| 2440 //------------------------------peep_match_child_parse------------------------- | |
| 2441 InstructForm *ADLParser::peep_match_child_parse(PeepMatch &match, int parent, int &position, int input){ | |
| 2442 char *token = NULL; | |
| 2443 int lparen = 0; // keep track of parenthesis nesting depth | |
| 2444 int rparen = 0; // position of instruction at this depth | |
| 2445 InstructForm *inst_seen = NULL; | |
| 2446 InstructForm *child_seen = NULL; | |
| 2447 | |
| 2448 // Walk the match tree, | |
| 2449 // Record <parent, position, instruction name, input position> | |
| 2450 while ( lparen >= rparen ) { | |
| 2451 skipws(); | |
| 2452 // Left paren signals start of an input, collect with recursive call | |
| 2453 if (_curchar == '(') { | |
| 2454 ++lparen; | |
| 2455 next_char(); | |
| 2456 child_seen = peep_match_child_parse(match, parent, position, rparen); | |
| 2457 } | |
| 2458 // Right paren signals end of an input, may be more | |
| 2459 else if (_curchar == ')') { | |
| 2460 ++rparen; | |
| 2461 if( rparen == lparen ) { // IF rparen matches an lparen I've seen | |
| 2462 next_char(); // move past ')' | |
| 2463 } else { // ELSE leave ')' for parent | |
| 2464 assert( rparen == lparen + 1, "Should only see one extra ')'"); | |
| 2465 // if an instruction was not specified for this paren-pair | |
| 2466 if( ! inst_seen ) { // record signal entry | |
| 2467 match.add_instruction( parent, position, NameList::_signal, input ); | |
| 2468 ++position; | |
| 2469 } | |
| 2470 // ++input; // TEMPORARY | |
| 2471 return inst_seen; | |
| 2472 } | |
| 2473 } | |
| 2474 // if no parens, then check for instruction name | |
| 2475 // This instruction is the parent of a sub-tree | |
| 2476 else if ((token = get_ident_dup()) != NULL) { | |
| 2477 const Form *form = _AD._globalNames[token]; | |
| 2478 if (form) { | |
| 2479 InstructForm *inst = form->is_instruction(); | |
| 2480 // Record the first instruction at this level | |
| 2481 if( inst_seen == NULL ) { | |
| 2482 inst_seen = inst; | |
| 2483 } | |
| 2484 if (inst) { | |
| 2485 match.add_instruction( parent, position, token, input ); | |
| 2486 parent = position; | |
| 2487 ++position; | |
| 2488 } else { | |
| 2489 parse_err(SYNERR, "instruction name expected at identifier %s.\n", | |
| 2490 token); | |
| 2491 return inst_seen; | |
| 2492 } | |
| 2493 } | |
| 2494 else { | |
| 2495 parse_err(SYNERR, "missing identifier in peepmatch rule.\n"); | |
| 2496 return NULL; | |
| 2497 } | |
| 2498 } | |
| 2499 else { | |
| 2500 parse_err(SYNERR, "missing identifier in peepmatch rule.\n"); | |
| 2501 return NULL; | |
| 2502 } | |
| 2503 | |
| 2504 } // end while | |
| 2505 | |
| 2506 assert( false, "ShouldNotReachHere();"); | |
| 2507 return NULL; | |
| 2508 } | |
| 2509 | |
| 2510 //------------------------------peep_match_parse------------------------------- | |
| 2511 // Syntax for a peepmatch rule | |
| 2512 // | |
| 2513 // peepmatch ( root_instr_name [(instruction subtree)] [,(instruction subtree)]* ); | |
| 2514 // | |
| 2515 void ADLParser::peep_match_parse(Peephole &peep) { | |
| 2516 | |
| 2517 skipws(); | |
| 2518 // Check the structure of the rule | |
| 2519 // Check for open paren | |
| 2520 if (_curchar != '(') { | |
| 2521 parse_err(SYNERR, "missing '(' at start of peepmatch rule.\n"); | |
| 2522 return; | |
| 2523 } | |
| 2524 next_char(); // skip '(' | |
| 2525 | |
| 2526 // Construct PeepMatch and parse the peepmatch rule. | |
| 2527 PeepMatch *match = new PeepMatch(_ptr); | |
| 2528 int parent = -1; // parent of root | |
| 2529 int position = 0; // zero-based positions | |
| 2530 int input = 0; // input position in parent's operands | |
| 2531 InstructForm *root= peep_match_child_parse( *match, parent, position, input); | |
| 2532 if( root == NULL ) { | |
| 2533 parse_err(SYNERR, "missing instruction-name at start of peepmatch.\n"); | |
| 2534 return; | |
| 2535 } | |
| 2536 | |
| 2537 if( _curchar != ')' ) { | |
| 2538 parse_err(SYNERR, "missing ')' at end of peepmatch.\n"); | |
| 2539 return; | |
| 2540 } | |
| 2541 next_char(); // skip ')' | |
| 2542 | |
| 2543 // Check for closing semicolon | |
| 2544 skipws(); | |
| 2545 if( _curchar != ';' ) { | |
| 2546 parse_err(SYNERR, "missing ';' at end of peepmatch.\n"); | |
| 2547 return; | |
| 2548 } | |
| 2549 next_char(); // skip ';' | |
| 2550 | |
| 2551 // Store match into peep, and store peep into instruction | |
| 2552 peep.add_match(match); | |
| 2553 root->append_peephole(&peep); | |
| 2554 } | |
| 2555 | |
| 2556 //------------------------------peep_constraint_parse-------------------------- | |
| 2557 // Syntax for a peepconstraint rule | |
| 2558 // A parenthesized list of relations between operands in peepmatch subtree | |
| 2559 // | |
| 2560 // peepconstraint %{ | |
| 2561 // (instruction_number.operand_name | |
| 2562 // relational_op | |
| 2563 // instruction_number.operand_name OR register_name | |
| 2564 // [, ...] ); | |
| 2565 // | |
| 2566 // // instruction numbers are zero-based using topological order in peepmatch | |
| 2567 // | |
| 2568 void ADLParser::peep_constraint_parse(Peephole &peep) { | |
| 2569 | |
| 2570 skipws(); | |
| 2571 // Check the structure of the rule | |
| 2572 // Check for open paren | |
| 2573 if (_curchar != '(') { | |
| 2574 parse_err(SYNERR, "missing '(' at start of peepconstraint rule.\n"); | |
| 2575 return; | |
| 2576 } | |
| 2577 else { | |
| 2578 next_char(); // Skip '(' | |
| 2579 } | |
| 2580 | |
| 2581 // Check for a constraint | |
| 2582 skipws(); | |
| 2583 while( _curchar != ')' ) { | |
| 2584 // Get information on the left instruction and its operand | |
| 2585 // left-instructions's number | |
|
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2586 int left_inst = get_int(); |
| 0 | 2587 // Left-instruction's operand |
| 2588 skipws(); | |
| 2589 if( _curchar != '.' ) { | |
| 2590 parse_err(SYNERR, "missing '.' in peepconstraint after instruction number.\n"); | |
| 2591 return; | |
| 2592 } | |
| 2593 next_char(); // Skip '.' | |
| 2594 char *left_op = get_ident_dup(); | |
| 2595 | |
| 2596 skipws(); | |
| 2597 // Collect relational operator | |
| 2598 char *relation = get_relation_dup(); | |
| 2599 | |
| 2600 skipws(); | |
| 2601 // Get information on the right instruction and its operand | |
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2602 int right_inst; // Right-instructions's number |
| 0 | 2603 if( isdigit(_curchar) ) { |
| 2604 right_inst = get_int(); | |
| 2605 // Right-instruction's operand | |
| 2606 skipws(); | |
| 2607 if( _curchar != '.' ) { | |
| 2608 parse_err(SYNERR, "missing '.' in peepconstraint after instruction number.\n"); | |
| 2609 return; | |
| 2610 } | |
| 2611 next_char(); // Skip '.' | |
| 2612 } else { | |
| 2613 right_inst = -1; // Flag as being a register constraint | |
| 2614 } | |
| 2615 | |
| 2616 char *right_op = get_ident_dup(); | |
| 2617 | |
| 2618 // Construct the next PeepConstraint | |
| 2619 PeepConstraint *constraint = new PeepConstraint( left_inst, left_op, | |
| 2620 relation, | |
| 2621 right_inst, right_op ); | |
| 2622 // And append it to the list for this peephole rule | |
| 2623 peep.append_constraint( constraint ); | |
| 2624 | |
| 2625 // Check for another constraint, or end of rule | |
| 2626 skipws(); | |
| 2627 if( _curchar == ',' ) { | |
| 2628 next_char(); // Skip ',' | |
| 2629 skipws(); | |
| 2630 } | |
| 2631 else if( _curchar != ')' ) { | |
| 2632 parse_err(SYNERR, "expected ',' or ')' after peephole constraint.\n"); | |
| 2633 return; | |
| 2634 } | |
| 2635 } // end while( processing constraints ) | |
| 2636 next_char(); // Skip ')' | |
| 2637 | |
| 2638 // Check for terminating ';' | |
| 2639 skipws(); | |
| 2640 if (_curchar != ';') { | |
| 2641 parse_err(SYNERR, "missing ';' at end of peepconstraint.\n"); | |
| 2642 return; | |
| 2643 } | |
| 2644 next_char(); // Skip trailing ';' | |
| 2645 } | |
| 2646 | |
| 2647 | |
| 2648 //------------------------------peep_replace_parse----------------------------- | |
| 2649 // Syntax for a peepreplace rule | |
| 2650 // root instruction name followed by a | |
| 2651 // parenthesized list of whitespace separated instruction.operand specifiers | |
| 2652 // | |
| 2653 // peepreplace ( instr_name ( [instruction_number.operand_name]* ) ); | |
| 2654 // | |
| 2655 // | |
| 2656 void ADLParser::peep_replace_parse(Peephole &peep) { | |
| 2657 int lparen = 0; // keep track of parenthesis nesting depth | |
| 2658 int rparen = 0; // keep track of parenthesis nesting depth | |
| 2659 int icount = 0; // count of instructions in rule for naming | |
| 2660 char *str = NULL; | |
| 2661 char *token = NULL; | |
| 2662 | |
| 2663 skipws(); | |
| 2664 // Check for open paren | |
| 2665 if (_curchar != '(') { | |
| 2666 parse_err(SYNERR, "missing '(' at start of peepreplace rule.\n"); | |
| 2667 return; | |
| 2668 } | |
| 2669 else { | |
| 2670 lparen++; | |
| 2671 next_char(); | |
| 2672 } | |
| 2673 | |
| 2674 // Check for root instruction | |
| 2675 char *inst = get_ident_dup(); | |
| 2676 const Form *form = _AD._globalNames[inst]; | |
| 2677 if( form == NULL || form->is_instruction() == NULL ) { | |
| 2678 parse_err(SYNERR, "Instruction name expected at start of peepreplace.\n"); | |
| 2679 return; | |
| 2680 } | |
| 2681 | |
| 2682 // Store string representation of rule into replace | |
| 2683 PeepReplace *replace = new PeepReplace(str); | |
| 2684 replace->add_instruction( inst ); | |
| 2685 | |
| 2686 skipws(); | |
| 2687 // Start of root's operand-list | |
| 2688 if (_curchar != '(') { | |
| 2689 parse_err(SYNERR, "missing '(' at peepreplace root's operand-list.\n"); | |
| 2690 return; | |
| 2691 } | |
| 2692 else { | |
| 2693 lparen++; | |
| 2694 next_char(); | |
| 2695 } | |
| 2696 | |
| 2697 skipws(); | |
| 2698 // Get the list of operands | |
| 2699 while( _curchar != ')' ) { | |
| 2700 // Get information on an instruction and its operand | |
| 2701 // instructions's number | |
| 2702 int inst_num = get_int(); | |
| 2703 // Left-instruction's operand | |
| 2704 skipws(); | |
| 2705 if( _curchar != '.' ) { | |
| 2706 parse_err(SYNERR, "missing '.' in peepreplace after instruction number.\n"); | |
| 2707 return; | |
| 2708 } | |
| 2709 next_char(); // Skip '.' | |
| 2710 char *inst_op = get_ident_dup(); | |
| 2711 if( inst_op == NULL ) { | |
| 2712 parse_err(SYNERR, "missing operand identifier in peepreplace.\n"); | |
| 2713 return; | |
| 2714 } | |
| 2715 | |
| 2716 // Record this operand's position in peepmatch | |
| 2717 replace->add_operand( inst_num, inst_op ); | |
| 2718 skipws(); | |
| 2719 } | |
| 2720 | |
| 2721 // Check for the end of operands list | |
| 2722 skipws(); | |
| 2723 assert( _curchar == ')', "While loop should have advanced to ')'."); | |
| 2724 next_char(); // Skip ')' | |
| 2725 | |
| 2726 skipws(); | |
| 2727 // Check for end of peepreplace | |
| 2728 if( _curchar != ')' ) { | |
| 2729 parse_err(SYNERR, "missing ')' at end of peepmatch.\n"); | |
| 2730 parse_err(SYNERR, "Support one replacement instruction.\n"); | |
| 2731 return; | |
| 2732 } | |
| 2733 next_char(); // Skip ')' | |
| 2734 | |
| 2735 // Check for closing semicolon | |
| 2736 skipws(); | |
| 2737 if( _curchar != ';' ) { | |
| 2738 parse_err(SYNERR, "missing ';' at end of peepreplace.\n"); | |
| 2739 return; | |
| 2740 } | |
| 2741 next_char(); // skip ';' | |
| 2742 | |
| 2743 // Store replace into peep | |
| 2744 peep.add_replace( replace ); | |
| 2745 } | |
| 2746 | |
| 2747 //------------------------------pred_parse------------------------------------- | |
| 2748 Predicate *ADLParser::pred_parse(void) { | |
| 2749 Predicate *predicate; // Predicate class for operand | |
| 2750 char *rule = NULL; // String representation of predicate | |
| 2751 | |
| 2752 skipws(); // Skip leading whitespace | |
|
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|
2753 int line = linenum(); |
|
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|
2754 if ( (rule = get_paren_expr("pred expression", true)) == NULL ) { |
| 0 | 2755 parse_err(SYNERR, "incorrect or missing expression for 'predicate'\n"); |
| 2756 return NULL; | |
| 2757 } | |
| 2758 // Debug Stuff | |
| 2759 if (_AD._adl_debug > 1) fprintf(stderr,"Predicate: %s\n", rule); | |
| 2760 if (_curchar != ';') { | |
| 2761 parse_err(SYNERR, "missing ';' in predicate definition\n"); | |
| 2762 return NULL; | |
| 2763 } | |
| 2764 next_char(); // Point after the terminator | |
| 2765 | |
| 2766 predicate = new Predicate(rule); // Build new predicate object | |
| 2767 skipws(); | |
| 2768 return predicate; | |
| 2769 } | |
| 2770 | |
| 2771 | |
| 2772 //------------------------------ins_encode_parse_block------------------------- | |
| 2773 // Parse the block form of ins_encode. See ins_encode_parse for more details | |
| 2008 | 2774 void ADLParser::ins_encode_parse_block(InstructForm& inst) { |
| 0 | 2775 // Create a new encoding name based on the name of the instruction |
| 2776 // definition, which should be unique. | |
| 2008 | 2777 const char* prefix = "__ins_encode_"; |
| 2778 char* ec_name = (char*) malloc(strlen(inst._ident) + strlen(prefix) + 1); | |
| 0 | 2779 sprintf(ec_name, "%s%s", prefix, inst._ident); |
| 2780 | |
| 2781 assert(_AD._encode->encClass(ec_name) == NULL, "shouldn't already exist"); | |
| 2008 | 2782 EncClass* encoding = _AD._encode->add_EncClass(ec_name); |
|
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|
2783 encoding->_linenum = linenum(); |
| 0 | 2784 |
| 2785 // synthesize the arguments list for the enc_class from the | |
| 2786 // arguments to the instruct definition. | |
| 2008 | 2787 const char* param = NULL; |
| 0 | 2788 inst._parameters.reset(); |
| 2789 while ((param = inst._parameters.iter()) != NULL) { | |
| 2008 | 2790 OperandForm* opForm = (OperandForm*) inst._localNames[param]; |
| 0 | 2791 encoding->add_parameter(opForm->_ident, param); |
| 2792 } | |
| 2793 | |
| 2008 | 2794 // Define a MacroAssembler instance for use by the encoding. The |
| 2795 // name is chosen to match the __ idiom used for assembly in other | |
| 2796 // parts of hotspot and assumes the existence of the standard | |
| 2797 // #define __ _masm. | |
| 2798 encoding->add_code(" MacroAssembler _masm(&cbuf);\n"); | |
| 0 | 2799 |
| 2800 // Parse the following %{ }% block | |
| 2008 | 2801 ins_encode_parse_block_impl(inst, encoding, ec_name); |
| 0 | 2802 |
| 2803 // Build an encoding rule which invokes the encoding rule we just | |
| 2804 // created, passing all arguments that we received. | |
| 2008 | 2805 InsEncode* encrule = new InsEncode(); // Encode class for instruction |
| 2806 NameAndList* params = encrule->add_encode(ec_name); | |
| 0 | 2807 inst._parameters.reset(); |
| 2808 while ((param = inst._parameters.iter()) != NULL) { | |
| 2809 params->add_entry(param); | |
| 2810 } | |
| 2811 | |
|
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parents:
2008
diff
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|
2812 // Check for duplicate ins_encode sections after parsing the block |
|
fe240d87c6ec
7061101: adlc should complain about mixing block and expression forms of ins_encode
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diff
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|
2813 // so that parsing can continue and find any other errors. |
|
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diff
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|
2814 if (inst._insencode != NULL) { |
|
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7061101: adlc should complain about mixing block and expression forms of ins_encode
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diff
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|
2815 parse_err(SYNERR, "Multiple ins_encode sections defined\n"); |
|
fe240d87c6ec
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diff
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|
2816 return; |
|
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diff
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|
2817 } |
|
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diff
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|
2818 |
| 2008 | 2819 // Set encode class of this instruction. |
| 2820 inst._insencode = encrule; | |
| 2821 } | |
| 2822 | |
| 2823 | |
| 2824 void ADLParser::ins_encode_parse_block_impl(InstructForm& inst, EncClass* encoding, char* ec_name) { | |
| 2825 skipws_no_preproc(); // Skip leading whitespace | |
| 2826 // Prepend location descriptor, for debugging; cf. ADLParser::find_cpp_block | |
| 2827 if (_AD._adlocation_debug) { | |
| 2828 encoding->add_code(get_line_string()); | |
| 2829 } | |
| 2830 | |
| 2831 // Collect the parts of the encode description | |
| 2832 // (1) strings that are passed through to output | |
| 2833 // (2) replacement/substitution variable, preceeded by a '$' | |
| 2834 while ((_curchar != '%') && (*(_ptr+1) != '}')) { | |
| 2835 | |
| 2836 // (1) | |
| 2837 // Check if there is a string to pass through to output | |
| 2838 char *start = _ptr; // Record start of the next string | |
| 2839 while ((_curchar != '$') && ((_curchar != '%') || (*(_ptr+1) != '}')) ) { | |
| 2840 // If at the start of a comment, skip past it | |
| 2841 if( (_curchar == '/') && ((*(_ptr+1) == '/') || (*(_ptr+1) == '*')) ) { | |
| 2842 skipws_no_preproc(); | |
| 2843 } else { | |
| 2844 // ELSE advance to the next character, or start of the next line | |
| 2845 next_char_or_line(); | |
| 2846 } | |
| 2847 } | |
| 2848 // If a string was found, terminate it and record in EncClass | |
| 2849 if (start != _ptr) { | |
| 2850 *_ptr = '\0'; // Terminate the string | |
| 2851 encoding->add_code(start); | |
| 2852 } | |
| 2853 | |
| 2854 // (2) | |
| 2855 // If we are at a replacement variable, | |
| 2856 // copy it and record in EncClass | |
| 2857 if (_curchar == '$') { | |
| 2858 // Found replacement Variable | |
| 2859 char* rep_var = get_rep_var_ident_dup(); | |
| 2860 | |
| 2861 // Add flag to _strings list indicating we should check _rep_vars | |
| 2862 encoding->add_rep_var(rep_var); | |
| 2863 | |
| 2864 skipws(); | |
| 2865 | |
| 2866 // Check if this instruct is a MachConstantNode. | |
| 2867 if (strcmp(rep_var, "constanttablebase") == 0) { | |
| 2868 // This instruct is a MachConstantNode. | |
| 2869 inst.set_is_mach_constant(true); | |
| 2870 | |
| 2871 if (_curchar == '(') { | |
| 2872 parse_err(SYNERR, "constanttablebase in instruct %s cannot have an argument (only constantaddress and constantoffset)", ec_name); | |
| 2873 return; | |
| 2874 } | |
| 2875 } | |
| 2876 else if ((strcmp(rep_var, "constantaddress") == 0) || | |
| 2877 (strcmp(rep_var, "constantoffset") == 0)) { | |
| 2878 // This instruct is a MachConstantNode. | |
| 2879 inst.set_is_mach_constant(true); | |
| 2880 | |
| 2881 // If the constant keyword has an argument, parse it. | |
| 2882 if (_curchar == '(') constant_parse(inst); | |
| 2883 } | |
| 2884 } | |
| 2885 } // end while part of format description | |
| 2886 next_char(); // Skip '%' | |
| 2887 next_char(); // Skip '}' | |
| 2888 | |
| 2889 skipws(); | |
| 2890 | |
| 2891 if (_AD._adlocation_debug) { | |
| 2892 encoding->add_code(end_line_marker()); | |
| 2893 } | |
| 2894 | |
| 2895 // Debug Stuff | |
| 2896 if (_AD._adl_debug > 1) fprintf(stderr, "EncodingClass Form: %s\n", ec_name); | |
| 0 | 2897 } |
| 2898 | |
| 2899 | |
| 2900 //------------------------------ins_encode_parse------------------------------- | |
| 2901 // Encode rules have the form | |
| 2902 // ins_encode( encode_class_name(parameter_list), ... ); | |
| 2903 // | |
| 2904 // The "encode_class_name" must be defined in the encode section | |
| 2905 // The parameter list contains $names that are locals. | |
| 2906 // | |
| 2907 // Alternatively it can be written like this: | |
| 2908 // | |
| 2909 // ins_encode %{ | |
| 2910 // ... // body | |
| 2911 // %} | |
| 2912 // | |
| 2913 // which synthesizes a new encoding class taking the same arguments as | |
| 2914 // the InstructForm, and automatically prefixes the definition with: | |
| 2915 // | |
| 2916 // MacroAssembler masm(&cbuf);\n"); | |
| 2917 // | |
| 2918 // making it more compact to take advantage of the MacroAssembler and | |
| 2919 // placing the assembly closer to it's use by instructions. | |
| 2008 | 2920 void ADLParser::ins_encode_parse(InstructForm& inst) { |
| 0 | 2921 |
| 2922 // Parse encode class name | |
| 2923 skipws(); // Skip whitespace | |
| 2924 if (_curchar != '(') { | |
| 2925 // Check for ins_encode %{ form | |
| 2926 if ((_curchar == '%') && (*(_ptr+1) == '{')) { | |
| 2927 next_char(); // Skip '%' | |
| 2928 next_char(); // Skip '{' | |
| 2929 | |
| 2930 // Parse the block form of ins_encode | |
| 2008 | 2931 ins_encode_parse_block(inst); |
| 2932 return; | |
| 0 | 2933 } |
| 2934 | |
| 2935 parse_err(SYNERR, "missing '%%{' or '(' in ins_encode definition\n"); | |
| 2008 | 2936 return; |
| 0 | 2937 } |
| 2938 next_char(); // move past '(' | |
| 2939 skipws(); | |
| 2940 | |
| 2941 InsEncode *encrule = new InsEncode(); // Encode class for instruction | |
|
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|
2942 encrule->_linenum = linenum(); |
| 0 | 2943 char *ec_name = NULL; // String representation of encode rule |
| 2944 // identifier is optional. | |
| 2945 while (_curchar != ')') { | |
| 2946 ec_name = get_ident(); | |
| 2947 if (ec_name == NULL) { | |
| 2948 parse_err(SYNERR, "Invalid encode class name after 'ins_encode('.\n"); | |
| 2008 | 2949 return; |
| 0 | 2950 } |
| 2951 // Check that encoding is defined in the encode section | |
| 2952 EncClass *encode_class = _AD._encode->encClass(ec_name); | |
| 2953 if (encode_class == NULL) { | |
| 2954 // Like to defer checking these till later... | |
| 2955 // parse_err(WARN, "Using an undefined encode class '%s' in 'ins_encode'.\n", ec_name); | |
| 2956 } | |
| 2957 | |
| 2958 // Get list for encode method's parameters | |
| 2959 NameAndList *params = encrule->add_encode(ec_name); | |
| 2960 | |
| 2961 // Parse the parameters to this encode method. | |
| 2962 skipws(); | |
| 2963 if ( _curchar == '(' ) { | |
| 2964 next_char(); // move past '(' for parameters | |
| 2965 | |
| 2966 // Parse the encode method's parameters | |
| 2967 while (_curchar != ')') { | |
| 2968 char *param = get_ident_or_literal_constant("encoding operand"); | |
| 2969 if ( param != NULL ) { | |
| 2970 // Found a parameter: | |
| 2971 // Check it is a local name, add it to the list, then check for more | |
| 2972 // New: allow hex constants as parameters to an encode method. | |
| 2973 // New: allow parenthesized expressions as parameters. | |
| 2974 // New: allow "primary", "secondary", "tertiary" as parameters. | |
| 2975 // New: allow user-defined register name as parameter | |
| 2976 if ( (inst._localNames[param] == NULL) && | |
| 2977 !ADLParser::is_literal_constant(param) && | |
| 2978 (Opcode::as_opcode_type(param) == Opcode::NOT_AN_OPCODE) && | |
| 2979 ((_AD._register == NULL ) || (_AD._register->getRegDef(param) == NULL)) ) { | |
| 2980 parse_err(SYNERR, "Using non-locally defined parameter %s for encoding %s.\n", param, ec_name); | |
| 2008 | 2981 return; |
| 0 | 2982 } |
| 2983 params->add_entry(param); | |
| 2984 | |
| 2985 skipws(); | |
| 2986 if (_curchar == ',' ) { | |
| 2987 // More parameters to come | |
| 2988 next_char(); // move past ',' between parameters | |
| 2989 skipws(); // Skip to next parameter | |
| 2990 } | |
| 2991 else if (_curchar == ')') { | |
| 2992 // Done with parameter list | |
| 2993 } | |
| 2994 else { | |
| 2995 // Only ',' or ')' are valid after a parameter name | |
| 2996 parse_err(SYNERR, "expected ',' or ')' after parameter %s.\n", | |
| 2997 ec_name); | |
| 2008 | 2998 return; |
| 0 | 2999 } |
| 3000 | |
| 3001 } else { | |
| 3002 skipws(); | |
| 3003 // Did not find a parameter | |
| 3004 if (_curchar == ',') { | |
| 3005 parse_err(SYNERR, "Expected encode parameter before ',' in encoding %s.\n", ec_name); | |
| 2008 | 3006 return; |
| 0 | 3007 } |
| 3008 if (_curchar != ')') { | |
| 3009 parse_err(SYNERR, "Expected ')' after encode parameters.\n"); | |
| 2008 | 3010 return; |
| 0 | 3011 } |
| 3012 } | |
| 3013 } // WHILE loop collecting parameters | |
| 3014 next_char(); // move past ')' at end of parameters | |
| 3015 } // done with parameter list for encoding | |
| 3016 | |
| 3017 // Check for ',' or ')' after encoding | |
| 3018 skipws(); // move to character after parameters | |
| 3019 if ( _curchar == ',' ) { | |
| 3020 // Found a ',' | |
| 3021 next_char(); // move past ',' between encode methods | |
| 3022 skipws(); | |
| 3023 } | |
| 3024 else if ( _curchar != ')' ) { | |
| 3025 // If not a ',' then only a ')' is allowed | |
| 3026 parse_err(SYNERR, "Expected ')' after encoding %s.\n", ec_name); | |
| 2008 | 3027 return; |
| 0 | 3028 } |
| 3029 | |
| 3030 // Check for ',' separating parameters | |
| 3031 // if ( _curchar != ',' && _curchar != ')' ) { | |
| 3032 // parse_err(SYNERR, "expected ',' or ')' after encode method inside ins_encode.\n"); | |
| 3033 // return NULL; | |
| 3034 // } | |
| 3035 | |
| 3036 } // done parsing ins_encode methods and their parameters | |
| 3037 if (_curchar != ')') { | |
| 3038 parse_err(SYNERR, "Missing ')' at end of ins_encode description.\n"); | |
| 2008 | 3039 return; |
| 0 | 3040 } |
| 3041 next_char(); // move past ')' | |
| 3042 skipws(); // Skip leading whitespace | |
| 3043 | |
| 3044 if ( _curchar != ';' ) { | |
| 3045 parse_err(SYNERR, "Missing ';' at end of ins_encode.\n"); | |
| 2008 | 3046 return; |
| 0 | 3047 } |
| 3048 next_char(); // move past ';' | |
| 3049 skipws(); // be friendly to oper_parse() | |
| 3050 | |
|
3793
fe240d87c6ec
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parents:
2008
diff
changeset
|
3051 // Check for duplicate ins_encode sections after parsing the block |
|
fe240d87c6ec
7061101: adlc should complain about mixing block and expression forms of ins_encode
never
parents:
2008
diff
changeset
|
3052 // so that parsing can continue and find any other errors. |
|
fe240d87c6ec
7061101: adlc should complain about mixing block and expression forms of ins_encode
never
parents:
2008
diff
changeset
|
3053 if (inst._insencode != NULL) { |
|
fe240d87c6ec
7061101: adlc should complain about mixing block and expression forms of ins_encode
never
parents:
2008
diff
changeset
|
3054 parse_err(SYNERR, "Multiple ins_encode sections defined\n"); |
|
fe240d87c6ec
7061101: adlc should complain about mixing block and expression forms of ins_encode
never
parents:
2008
diff
changeset
|
3055 return; |
|
fe240d87c6ec
7061101: adlc should complain about mixing block and expression forms of ins_encode
never
parents:
2008
diff
changeset
|
3056 } |
|
fe240d87c6ec
7061101: adlc should complain about mixing block and expression forms of ins_encode
never
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2008
diff
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|
3057 |
| 0 | 3058 // Debug Stuff |
| 3059 if (_AD._adl_debug > 1) fprintf(stderr,"Instruction Encode: %s\n", ec_name); | |
| 3060 | |
| 2008 | 3061 // Set encode class of this instruction. |
| 3062 inst._insencode = encrule; | |
| 3063 } | |
| 3064 | |
| 3065 | |
| 3066 //------------------------------constant_parse--------------------------------- | |
| 3067 // Parse a constant expression. | |
| 3068 void ADLParser::constant_parse(InstructForm& inst) { | |
| 3069 // Create a new encoding name based on the name of the instruction | |
| 3070 // definition, which should be unique. | |
| 3071 const char* prefix = "__constant_"; | |
| 3072 char* ec_name = (char*) malloc(strlen(inst._ident) + strlen(prefix) + 1); | |
| 3073 sprintf(ec_name, "%s%s", prefix, inst._ident); | |
| 3074 | |
| 3075 assert(_AD._encode->encClass(ec_name) == NULL, "shouldn't already exist"); | |
| 3076 EncClass* encoding = _AD._encode->add_EncClass(ec_name); | |
| 3077 encoding->_linenum = linenum(); | |
| 3078 | |
| 3079 // synthesize the arguments list for the enc_class from the | |
| 3080 // arguments to the instruct definition. | |
| 3081 const char* param = NULL; | |
| 3082 inst._parameters.reset(); | |
| 3083 while ((param = inst._parameters.iter()) != NULL) { | |
| 3084 OperandForm* opForm = (OperandForm*) inst._localNames[param]; | |
| 3085 encoding->add_parameter(opForm->_ident, param); | |
| 3086 } | |
| 3087 | |
| 3088 // Parse the following ( ) expression. | |
| 3089 constant_parse_expression(encoding, ec_name); | |
| 3090 | |
| 3091 // Build an encoding rule which invokes the encoding rule we just | |
| 3092 // created, passing all arguments that we received. | |
| 3093 InsEncode* encrule = new InsEncode(); // Encode class for instruction | |
| 3094 NameAndList* params = encrule->add_encode(ec_name); | |
| 3095 inst._parameters.reset(); | |
| 3096 while ((param = inst._parameters.iter()) != NULL) { | |
| 3097 params->add_entry(param); | |
| 3098 } | |
| 3099 | |
| 3100 // Set encode class of this instruction. | |
| 3101 inst._constant = encrule; | |
| 3102 } | |
| 3103 | |
| 3104 | |
| 3105 //------------------------------constant_parse_expression---------------------- | |
| 3106 void ADLParser::constant_parse_expression(EncClass* encoding, char* ec_name) { | |
| 3107 skipws(); | |
| 3108 | |
| 3109 // Prepend location descriptor, for debugging; cf. ADLParser::find_cpp_block | |
| 3110 if (_AD._adlocation_debug) { | |
| 3111 encoding->add_code(get_line_string()); | |
| 3112 } | |
| 3113 | |
| 3114 // Start code line. | |
| 3115 encoding->add_code(" _constant = C->constant_table().add"); | |
| 3116 | |
| 3117 // Parse everything in ( ) expression. | |
|
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3842
diff
changeset
|
3118 encoding->add_code("(this, "); |
| 2008 | 3119 next_char(); // Skip '(' |
| 3120 int parens_depth = 1; | |
| 3121 | |
| 3122 // Collect the parts of the constant expression. | |
| 3123 // (1) strings that are passed through to output | |
| 3124 // (2) replacement/substitution variable, preceeded by a '$' | |
| 3125 while (parens_depth > 0) { | |
| 3126 if (_curchar == '(') { | |
| 3127 parens_depth++; | |
| 3128 encoding->add_code("("); | |
| 3129 next_char(); | |
| 3130 } | |
| 3131 else if (_curchar == ')') { | |
| 3132 parens_depth--; | |
|
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|
3133 if (parens_depth > 0) |
|
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|
3134 encoding->add_code(")"); |
| 2008 | 3135 next_char(); |
| 3136 } | |
| 3137 else { | |
| 3138 // (1) | |
| 3139 // Check if there is a string to pass through to output | |
| 3140 char *start = _ptr; // Record start of the next string | |
| 3141 while ((_curchar != '$') && (_curchar != '(') && (_curchar != ')')) { | |
| 3142 next_char(); | |
| 3143 } | |
| 3144 // If a string was found, terminate it and record in EncClass | |
| 3145 if (start != _ptr) { | |
| 3146 *_ptr = '\0'; // Terminate the string | |
| 3147 encoding->add_code(start); | |
| 3148 } | |
| 3149 | |
| 3150 // (2) | |
| 3151 // If we are at a replacement variable, copy it and record in EncClass. | |
| 3152 if (_curchar == '$') { | |
| 3153 // Found replacement Variable | |
| 3154 char* rep_var = get_rep_var_ident_dup(); | |
| 3155 encoding->add_rep_var(rep_var); | |
| 3156 } | |
| 3157 } | |
| 3158 } | |
| 3159 | |
| 3160 // Finish code line. | |
|
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|
3161 encoding->add_code(");"); |
| 2008 | 3162 |
| 3163 if (_AD._adlocation_debug) { | |
| 3164 encoding->add_code(end_line_marker()); | |
| 3165 } | |
| 3166 | |
| 3167 // Debug Stuff | |
| 3168 if (_AD._adl_debug > 1) fprintf(stderr, "EncodingClass Form: %s\n", ec_name); | |
| 0 | 3169 } |
| 3170 | |
| 3171 | |
| 3172 //------------------------------size_parse----------------------------------- | |
| 3173 char* ADLParser::size_parse(InstructForm *instr) { | |
| 3174 char* sizeOfInstr = NULL; | |
| 3175 | |
| 3176 // Get value of the instruction's size | |
| 3177 skipws(); | |
| 3178 | |
| 3179 // Parse size | |
| 3180 sizeOfInstr = get_paren_expr("size expression"); | |
| 3181 if (sizeOfInstr == NULL) { | |
| 3182 parse_err(SYNERR, "size of opcode expected at %c\n", _curchar); | |
| 3183 return NULL; | |
| 3184 } | |
| 3185 | |
| 3186 skipws(); | |
| 3187 | |
| 3188 // Check for terminator | |
| 3189 if (_curchar != ';') { | |
| 3190 parse_err(SYNERR, "missing ';' in ins_attrib definition\n"); | |
| 3191 return NULL; | |
| 3192 } | |
| 3193 next_char(); // Advance past the ';' | |
| 3194 skipws(); // necessary for instr_parse() | |
| 3195 | |
| 3196 // Debug Stuff | |
| 3197 if (_AD._adl_debug > 1) { | |
| 3198 if (sizeOfInstr != NULL) { | |
| 3199 fprintf(stderr,"size of opcode: %s\n", sizeOfInstr); | |
| 3200 } | |
| 3201 } | |
| 3202 | |
| 3203 return sizeOfInstr; | |
| 3204 } | |
| 3205 | |
| 3206 | |
| 3207 //------------------------------opcode_parse----------------------------------- | |
| 3208 Opcode * ADLParser::opcode_parse(InstructForm *instr) { | |
| 3209 char *primary = NULL; | |
| 3210 char *secondary = NULL; | |
| 3211 char *tertiary = NULL; | |
| 3212 | |
| 3213 char *val = NULL; | |
| 3214 Opcode *opcode = NULL; | |
| 3215 | |
| 3216 // Get value of the instruction's opcode | |
| 3217 skipws(); | |
| 3218 if (_curchar != '(') { // Check for parenthesized operand list | |
| 3219 parse_err(SYNERR, "missing '(' in expand instruction declaration\n"); | |
| 3220 return NULL; | |
| 3221 } | |
| 3222 next_char(); // skip open paren | |
| 3223 skipws(); | |
| 3224 if (_curchar != ')') { | |
| 3225 // Parse primary, secondary, and tertiary opcodes, if provided. | |
| 3226 if ( ((primary = get_ident_or_literal_constant("primary opcode")) == NULL) ) { | |
| 3227 parse_err(SYNERR, "primary hex opcode expected at %c\n", _curchar); | |
| 3228 return NULL; | |
| 3229 } | |
| 3230 skipws(); | |
| 3231 if (_curchar == ',') { | |
| 3232 next_char(); | |
| 3233 skipws(); | |
| 3234 // Parse secondary opcode | |
| 3235 if ( ((secondary = get_ident_or_literal_constant("secondary opcode")) == NULL) ) { | |
| 3236 parse_err(SYNERR, "secondary hex opcode expected at %c\n", _curchar); | |
| 3237 return NULL; | |
| 3238 } | |
| 3239 skipws(); | |
| 3240 if (_curchar == ',') { | |
| 3241 next_char(); | |
| 3242 skipws(); | |
| 3243 // Parse tertiary opcode | |
| 3244 if ( ((tertiary = get_ident_or_literal_constant("tertiary opcode")) == NULL) ) { | |
| 3245 parse_err(SYNERR,"tertiary hex opcode expected at %c\n", _curchar); | |
| 3246 return NULL; | |
| 3247 } | |
| 3248 skipws(); | |
| 3249 } | |
| 3250 } | |
| 3251 skipws(); | |
| 3252 if (_curchar != ')') { | |
| 3253 parse_err(SYNERR, "Missing ')' in opcode description\n"); | |
| 3254 return NULL; | |
| 3255 } | |
| 3256 } | |
| 3257 next_char(); // Skip ')' | |
| 3258 skipws(); | |
| 3259 // Check for terminator | |
| 3260 if (_curchar != ';') { | |
| 3261 parse_err(SYNERR, "missing ';' in ins_attrib definition\n"); | |
| 3262 return NULL; | |
| 3263 } | |
| 3264 next_char(); // Advance past the ';' | |
| 3265 skipws(); // necessary for instr_parse() | |
| 3266 | |
| 3267 // Debug Stuff | |
| 3268 if (_AD._adl_debug > 1) { | |
| 3269 if (primary != NULL) fprintf(stderr,"primary opcode: %s\n", primary); | |
| 3270 if (secondary != NULL) fprintf(stderr,"secondary opcode: %s\n", secondary); | |
| 3271 if (tertiary != NULL) fprintf(stderr,"tertiary opcode: %s\n", tertiary); | |
| 3272 } | |
| 3273 | |
| 3274 // Generate new object and return | |
| 3275 opcode = new Opcode(primary, secondary, tertiary); | |
| 3276 return opcode; | |
| 3277 } | |
| 3278 | |
| 3279 | |
| 3280 //------------------------------interface_parse-------------------------------- | |
| 3281 Interface *ADLParser::interface_parse(void) { | |
| 3282 char *iface_name = NULL; // Name of interface class being used | |
| 3283 char *iface_code = NULL; // Describe components of this class | |
| 3284 | |
| 3285 // Get interface class name | |
| 3286 skipws(); // Skip whitespace | |
| 3287 if (_curchar != '(') { | |
| 3288 parse_err(SYNERR, "Missing '(' at start of interface description.\n"); | |
| 3289 return NULL; | |
| 3290 } | |
| 3291 next_char(); // move past '(' | |
| 3292 skipws(); | |
| 3293 iface_name = get_ident(); | |
| 3294 if (iface_name == NULL) { | |
| 3295 parse_err(SYNERR, "missing interface name after 'interface'.\n"); | |
| 3296 return NULL; | |
| 3297 } | |
| 3298 skipws(); | |
| 3299 if (_curchar != ')') { | |
| 3300 parse_err(SYNERR, "Missing ')' after name of interface.\n"); | |
| 3301 return NULL; | |
| 3302 } | |
| 3303 next_char(); // move past ')' | |
| 3304 | |
| 3305 // Get details of the interface, | |
| 3306 // for the type of interface indicated by iface_name. | |
| 3307 Interface *inter = NULL; | |
| 3308 skipws(); | |
| 3309 if ( _curchar != ';' ) { | |
| 3310 if ( strcmp(iface_name,"MEMORY_INTER") == 0 ) { | |
| 3311 inter = mem_interface_parse(); | |
| 3312 } | |
| 3313 else if ( strcmp(iface_name,"COND_INTER") == 0 ) { | |
| 3314 inter = cond_interface_parse(); | |
| 3315 } | |
| 3316 // The parse routines consume the "%}" | |
| 3317 | |
| 3318 // Check for probable extra ';' after defining block. | |
| 3319 if ( _curchar == ';' ) { | |
| 3320 parse_err(SYNERR, "Extra ';' after defining interface block.\n"); | |
| 3321 next_char(); // Skip ';' | |
| 3322 return NULL; | |
| 3323 } | |
| 3324 } else { | |
| 3325 next_char(); // move past ';' | |
| 3326 | |
| 3327 // Create appropriate interface object | |
| 3328 if ( strcmp(iface_name,"REG_INTER") == 0 ) { | |
| 3329 inter = new RegInterface(); | |
| 3330 } | |
| 3331 else if ( strcmp(iface_name,"CONST_INTER") == 0 ) { | |
| 3332 inter = new ConstInterface(); | |
| 3333 } | |
| 3334 } | |
| 3335 skipws(); // be friendly to oper_parse() | |
| 3336 // Debug Stuff | |
| 3337 if (_AD._adl_debug > 1) fprintf(stderr,"Interface Form: %s\n", iface_name); | |
| 3338 | |
| 3339 // Create appropriate interface object and return. | |
| 3340 return inter; | |
| 3341 } | |
| 3342 | |
| 3343 | |
| 3344 //------------------------------mem_interface_parse---------------------------- | |
| 3345 Interface *ADLParser::mem_interface_parse(void) { | |
| 3346 // Fields for MemInterface | |
| 3347 char *base = NULL; | |
| 3348 char *index = NULL; | |
| 3349 char *scale = NULL; | |
| 3350 char *disp = NULL; | |
| 3351 | |
| 3352 if (_curchar != '%') { | |
| 3353 parse_err(SYNERR, "Missing '%{' for 'interface' block.\n"); | |
| 3354 return NULL; | |
| 3355 } | |
| 3356 next_char(); // Skip '%' | |
| 3357 if (_curchar != '{') { | |
| 3358 parse_err(SYNERR, "Missing '%{' for 'interface' block.\n"); | |
| 3359 return NULL; | |
| 3360 } | |
| 3361 next_char(); // Skip '{' | |
| 3362 skipws(); | |
| 3363 do { | |
| 3364 char *field = get_ident(); | |
| 3365 if (field == NULL) { | |
| 3366 parse_err(SYNERR, "Expected keyword, base|index|scale|disp, or '%}' ending interface.\n"); | |
| 3367 return NULL; | |
| 3368 } | |
| 3369 if ( strcmp(field,"base") == 0 ) { | |
| 3370 base = interface_field_parse(); | |
| 3371 } | |
| 3372 else if ( strcmp(field,"index") == 0 ) { | |
| 3373 index = interface_field_parse(); | |
| 3374 } | |
| 3375 else if ( strcmp(field,"scale") == 0 ) { | |
| 3376 scale = interface_field_parse(); | |
| 3377 } | |
| 3378 else if ( strcmp(field,"disp") == 0 ) { | |
| 3379 disp = interface_field_parse(); | |
| 3380 } | |
| 3381 else { | |
| 3382 parse_err(SYNERR, "Expected keyword, base|index|scale|disp, or '%}' ending interface.\n"); | |
| 3383 return NULL; | |
| 3384 } | |
| 3385 } while( _curchar != '%' ); | |
| 3386 next_char(); // Skip '%' | |
| 3387 if ( _curchar != '}' ) { | |
| 3388 parse_err(SYNERR, "Missing '%}' for 'interface' block.\n"); | |
| 3389 return NULL; | |
| 3390 } | |
| 3391 next_char(); // Skip '}' | |
| 3392 | |
| 3393 // Construct desired object and return | |
| 3394 Interface *inter = new MemInterface(base, index, scale, disp); | |
| 3395 return inter; | |
| 3396 } | |
| 3397 | |
| 3398 | |
| 3399 //------------------------------cond_interface_parse--------------------------- | |
| 3400 Interface *ADLParser::cond_interface_parse(void) { | |
| 3401 char *equal; | |
| 3402 char *not_equal; | |
| 3403 char *less; | |
| 3404 char *greater_equal; | |
| 3405 char *less_equal; | |
| 3406 char *greater; | |
|
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diff
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|
3407 const char *equal_format = "eq"; |
|
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|
3408 const char *not_equal_format = "ne"; |
|
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|
3409 const char *less_format = "lt"; |
|
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|
3410 const char *greater_equal_format = "ge"; |
|
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|
3411 const char *less_equal_format = "le"; |
|
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diff
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|
3412 const char *greater_format = "gt"; |
| 0 | 3413 |
| 3414 if (_curchar != '%') { | |
| 3415 parse_err(SYNERR, "Missing '%{' for 'cond_interface' block.\n"); | |
| 3416 return NULL; | |
| 3417 } | |
| 3418 next_char(); // Skip '%' | |
| 3419 if (_curchar != '{') { | |
| 3420 parse_err(SYNERR, "Missing '%{' for 'cond_interface' block.\n"); | |
| 3421 return NULL; | |
| 3422 } | |
| 3423 next_char(); // Skip '{' | |
| 3424 skipws(); | |
| 3425 do { | |
| 3426 char *field = get_ident(); | |
| 3427 if (field == NULL) { | |
| 3428 parse_err(SYNERR, "Expected keyword, base|index|scale|disp, or '%}' ending interface.\n"); | |
| 3429 return NULL; | |
| 3430 } | |
| 3431 if ( strcmp(field,"equal") == 0 ) { | |
|
415
4d9884b01ba6
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diff
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|
3432 equal = interface_field_parse(&equal_format); |
| 0 | 3433 } |
| 3434 else if ( strcmp(field,"not_equal") == 0 ) { | |
|
415
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diff
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|
3435 not_equal = interface_field_parse(¬_equal_format); |
| 0 | 3436 } |
| 3437 else if ( strcmp(field,"less") == 0 ) { | |
|
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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|
3438 less = interface_field_parse(&less_format); |
| 0 | 3439 } |
| 3440 else if ( strcmp(field,"greater_equal") == 0 ) { | |
|
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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|
3441 greater_equal = interface_field_parse(&greater_equal_format); |
| 0 | 3442 } |
| 3443 else if ( strcmp(field,"less_equal") == 0 ) { | |
|
415
4d9884b01ba6
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|
3444 less_equal = interface_field_parse(&less_equal_format); |
| 0 | 3445 } |
| 3446 else if ( strcmp(field,"greater") == 0 ) { | |
|
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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diff
changeset
|
3447 greater = interface_field_parse(&greater_format); |
| 0 | 3448 } |
| 3449 else { | |
| 3450 parse_err(SYNERR, "Expected keyword, base|index|scale|disp, or '%}' ending interface.\n"); | |
| 3451 return NULL; | |
| 3452 } | |
| 3453 } while( _curchar != '%' ); | |
| 3454 next_char(); // Skip '%' | |
| 3455 if ( _curchar != '}' ) { | |
| 3456 parse_err(SYNERR, "Missing '%}' for 'interface' block.\n"); | |
| 3457 return NULL; | |
| 3458 } | |
| 3459 next_char(); // Skip '}' | |
| 3460 | |
| 3461 // Construct desired object and return | |
|
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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parents:
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|
3462 Interface *inter = new CondInterface(equal, equal_format, |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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diff
changeset
|
3463 not_equal, not_equal_format, |
|
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6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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diff
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|
3464 less, less_format, |
|
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diff
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|
3465 greater_equal, greater_equal_format, |
|
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diff
changeset
|
3466 less_equal, less_equal_format, |
|
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changeset
|
3467 greater, greater_format); |
| 0 | 3468 return inter; |
| 3469 } | |
| 3470 | |
| 3471 | |
| 3472 //------------------------------interface_field_parse-------------------------- | |
|
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|
3473 char *ADLParser::interface_field_parse(const char ** format) { |
| 0 | 3474 char *iface_field = NULL; |
| 3475 | |
| 3476 // Get interface field | |
| 3477 skipws(); // Skip whitespace | |
| 3478 if (_curchar != '(') { | |
| 3479 parse_err(SYNERR, "Missing '(' at start of interface field.\n"); | |
| 3480 return NULL; | |
| 3481 } | |
| 3482 next_char(); // move past '(' | |
| 3483 skipws(); | |
| 3484 if ( _curchar != '0' && _curchar != '$' ) { | |
| 3485 parse_err(SYNERR, "missing or invalid interface field contents.\n"); | |
| 3486 return NULL; | |
| 3487 } | |
| 3488 iface_field = get_rep_var_ident(); | |
| 3489 if (iface_field == NULL) { | |
| 3490 parse_err(SYNERR, "missing or invalid interface field contents.\n"); | |
| 3491 return NULL; | |
| 3492 } | |
| 3493 skipws(); | |
|
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|
3494 if (format != NULL && _curchar == ',') { |
|
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|
3495 next_char(); |
|
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|
3496 skipws(); |
|
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|
3497 if (_curchar != '"') { |
|
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|
3498 parse_err(SYNERR, "Missing '\"' in field format .\n"); |
|
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|
3499 return NULL; |
|
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|
3500 } |
|
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|
3501 next_char(); |
|
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|
3502 char *start = _ptr; // Record start of the next string |
|
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|
3503 while ((_curchar != '"') && (_curchar != '%') && (_curchar != '\n')) { |
|
4d9884b01ba6
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|
3504 if (_curchar == '\\') next_char(); // superquote |
|
4d9884b01ba6
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|
3505 if (_curchar == '\n') parse_err(SYNERR, "newline in string"); // unimplemented! |
|
4d9884b01ba6
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changeset
|
3506 next_char(); |
|
4d9884b01ba6
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diff
changeset
|
3507 } |
|
4d9884b01ba6
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changeset
|
3508 if (_curchar != '"') { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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diff
changeset
|
3509 parse_err(SYNERR, "Missing '\"' at end of field format .\n"); |
|
4d9884b01ba6
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parents:
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changeset
|
3510 return NULL; |
|
4d9884b01ba6
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parents:
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diff
changeset
|
3511 } |
|
4d9884b01ba6
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changeset
|
3512 // 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
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diff
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|
3513 if ( start != _ptr ) { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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diff
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|
3514 *_ptr = '\0'; // Terminate the string |
|
4d9884b01ba6
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diff
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|
3515 *format = start; |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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changeset
|
3516 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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parents:
0
diff
changeset
|
3517 next_char(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3518 skipws(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3519 } |
| 0 | 3520 if (_curchar != ')') { |
| 3521 parse_err(SYNERR, "Missing ')' after interface field.\n"); | |
| 3522 return NULL; | |
| 3523 } | |
| 3524 next_char(); // move past ')' | |
| 3525 skipws(); | |
| 3526 if ( _curchar != ';' ) { | |
| 3527 parse_err(SYNERR, "Missing ';' at end of interface field.\n"); | |
| 3528 return NULL; | |
| 3529 } | |
| 3530 next_char(); // move past ';' | |
| 3531 skipws(); // be friendly to interface_parse() | |
| 3532 | |
| 3533 return iface_field; | |
| 3534 } | |
| 3535 | |
| 3536 | |
| 3537 //------------------------------match_parse------------------------------------ | |
| 3538 MatchRule *ADLParser::match_parse(FormDict &operands) { | |
| 3539 MatchRule *match; // Match Rule class for instruction/operand | |
| 3540 char *cnstr = NULL; // Code for constructor | |
| 3541 int depth = 0; // Counter for matching parentheses | |
| 3542 int numleaves = 0; // Counter for number of leaves in rule | |
| 3543 | |
| 3544 // Parse the match rule tree | |
| 3545 MatchNode *mnode = matchNode_parse(operands, depth, numleaves, true); | |
| 3546 | |
| 3547 // Either there is a block with a constructor, or a ';' here | |
| 3548 skipws(); // Skip whitespace | |
| 3549 if ( _curchar == ';' ) { // Semicolon is valid terminator | |
| 3550 cnstr = NULL; // no constructor for this form | |
| 3551 next_char(); // Move past the ';', replaced with '\0' | |
| 3552 } | |
| 3553 else if ((cnstr = find_cpp_block("match constructor")) == NULL ) { | |
| 3554 parse_err(SYNERR, "invalid construction of match rule\n" | |
| 3555 "Missing ';' or invalid '%{' and '%}' constructor\n"); | |
| 3556 return NULL; // No MatchRule to return | |
| 3557 } | |
| 3558 if (_AD._adl_debug > 1) | |
| 3559 if (cnstr) fprintf(stderr,"Match Constructor: %s\n", cnstr); | |
| 3560 // Build new MatchRule object | |
| 3561 match = new MatchRule(_AD, mnode, depth, cnstr, numleaves); | |
| 3562 skipws(); // Skip any trailing whitespace | |
| 3563 return match; // Return MatchRule object | |
| 3564 } | |
| 3565 | |
| 3566 //------------------------------format_parse----------------------------------- | |
| 3567 FormatRule* ADLParser::format_parse(void) { | |
| 3568 char *desc = NULL; | |
| 3569 FormatRule *format = (new FormatRule(desc)); | |
| 3570 | |
| 3571 // Without expression form, MUST have a code block; | |
| 3572 skipws(); // Skip whitespace | |
| 3573 if ( _curchar == ';' ) { // Semicolon is valid terminator | |
| 3574 desc = NULL; // no constructor for this form | |
| 3575 next_char(); // Move past the ';', replaced with '\0' | |
| 3576 } | |
| 3577 else if ( _curchar == '%' && *(_ptr+1) == '{') { | |
| 3578 next_char(); // Move past the '%' | |
| 3579 next_char(); // Move past the '{' | |
| 3580 | |
| 3581 skipws(); | |
|
415
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6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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diff
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|
3582 if (_curchar == '$') { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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parents:
0
diff
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|
3583 char* ident = get_rep_var_ident(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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diff
changeset
|
3584 if (strcmp(ident, "$$template") == 0) return template_parse(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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parents:
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diff
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|
3585 parse_err(SYNERR, "Unknown \"%s\" directive in format", ident); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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parents:
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diff
changeset
|
3586 return NULL; |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3587 } |
| 0 | 3588 // Check for the opening '"' inside the format description |
| 3589 if ( _curchar == '"' ) { | |
| 3590 next_char(); // Move past the initial '"' | |
| 3591 if( _curchar == '"' ) { // Handle empty format string case | |
| 3592 *_ptr = '\0'; // Terminate empty string | |
| 3593 format->_strings.addName(_ptr); | |
| 3594 } | |
| 3595 | |
| 3596 // Collect the parts of the format description | |
| 3597 // (1) strings that are passed through to tty->print | |
| 3598 // (2) replacement/substitution variable, preceeded by a '$' | |
| 3599 // (3) multi-token ANSIY C style strings | |
| 3600 while ( true ) { | |
| 3601 if ( _curchar == '%' || _curchar == '\n' ) { | |
| 3602 if ( _curchar != '"' ) { | |
| 3603 parse_err(SYNERR, "missing '\"' at end of format block"); | |
| 3604 return NULL; | |
| 3605 } | |
| 3606 } | |
| 3607 | |
| 3608 // (1) | |
| 3609 // Check if there is a string to pass through to output | |
| 3610 char *start = _ptr; // Record start of the next string | |
| 3611 while ((_curchar != '$') && (_curchar != '"') && (_curchar != '%') && (_curchar != '\n')) { | |
|
475
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
3612 if (_curchar == '\\') { |
|
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
3613 next_char(); // superquote |
|
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
3614 if ((_curchar == '$') || (_curchar == '%')) |
|
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
3615 // hack to avoid % escapes and warnings about undefined \ escapes |
|
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
3616 *(_ptr-1) = _curchar; |
|
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
415
diff
changeset
|
3617 } |
| 0 | 3618 if (_curchar == '\n') parse_err(SYNERR, "newline in string"); // unimplemented! |
| 3619 next_char(); | |
| 3620 } | |
| 3621 // If a string was found, terminate it and record in FormatRule | |
| 3622 if ( start != _ptr ) { | |
| 3623 *_ptr = '\0'; // Terminate the string | |
| 3624 format->_strings.addName(start); | |
| 3625 } | |
| 3626 | |
| 3627 // (2) | |
| 3628 // If we are at a replacement variable, | |
| 3629 // copy it and record in FormatRule | |
| 3630 if ( _curchar == '$' ) { | |
| 3631 next_char(); // Move past the '$' | |
| 3632 char* rep_var = get_ident(); // Nil terminate the variable name | |
| 3633 rep_var = strdup(rep_var);// Copy the string | |
| 3634 *_ptr = _curchar; // and replace Nil with original character | |
| 3635 format->_rep_vars.addName(rep_var); | |
| 3636 // Add flag to _strings list indicating we should check _rep_vars | |
| 3637 format->_strings.addName(NameList::_signal); | |
| 3638 } | |
| 3639 | |
| 3640 // (3) | |
| 3641 // Allow very long strings to be broken up, | |
| 3642 // using the ANSI C syntax "foo\n" <newline> "bar" | |
| 3643 if ( _curchar == '"') { | |
| 3644 next_char(); // Move past the '"' | |
| 3645 skipws(); // Skip white space before next string token | |
| 3646 if ( _curchar != '"') { | |
| 3647 break; | |
| 3648 } else { | |
| 3649 // Found one. Skip both " and the whitespace in between. | |
| 3650 next_char(); | |
| 3651 } | |
| 3652 } | |
| 3653 } // end while part of format description | |
| 3654 | |
| 3655 // Check for closing '"' and '%}' in format description | |
| 3656 skipws(); // Move to closing '%}' | |
| 3657 if ( _curchar != '%' ) { | |
| 3658 parse_err(SYNERR, "non-blank characters between closing '\"' and '%' in format"); | |
| 3659 return NULL; | |
| 3660 } | |
| 3661 } // Done with format description inside | |
| 3662 | |
| 3663 skipws(); | |
| 3664 // Past format description, at '%' | |
| 3665 if ( _curchar != '%' || *(_ptr+1) != '}' ) { | |
| 3666 parse_err(SYNERR, "missing '%}' at end of format block"); | |
| 3667 return NULL; | |
| 3668 } | |
| 3669 next_char(); // Move past the '%' | |
| 3670 next_char(); // Move past the '}' | |
| 3671 } | |
| 3672 else { // parameter list alone must terminate with a ';' | |
| 3673 parse_err(SYNERR, "missing ';' after Format expression"); | |
| 3674 return NULL; | |
| 3675 } | |
| 3676 // Debug Stuff | |
| 3677 if (_AD._adl_debug > 1) fprintf(stderr,"Format Rule: %s\n", desc); | |
| 3678 | |
| 3679 skipws(); | |
| 3680 return format; | |
| 3681 } | |
| 3682 | |
| 3683 | |
|
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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parents:
0
diff
changeset
|
3684 //------------------------------template_parse----------------------------------- |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3685 FormatRule* ADLParser::template_parse(void) { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3686 char *desc = NULL; |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3687 FormatRule *format = (new FormatRule(desc)); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3688 |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3689 skipws(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3690 while ( (_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
|
3691 |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3692 // (1) |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3693 // 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
|
3694 { |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3695 char *start = _ptr; // Record start of the next string |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3696 while ((_curchar != '$') && ((_curchar != '%') || (*(_ptr+1) != '}')) ) { |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3697 // If at the start of a comment, skip past it |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3698 if( (_curchar == '/') && ((*(_ptr+1) == '/') || (*(_ptr+1) == '*')) ) { |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3699 skipws_no_preproc(); |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3700 } else { |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3701 // 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
|
3702 next_char_or_line(); |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3703 } |
|
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3704 } |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3705 // 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
|
3706 if ( start != _ptr ) { |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3707 *_ptr = '\0'; // Terminate the string |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3708 // 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
|
3709 format->_strings.addName(NameList::_signal2); |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3710 format->_strings.addName(start); |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
488
diff
changeset
|
3711 } |
|
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3712 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3713 |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3714 // (2) |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3715 // 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
|
3716 // 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
|
3717 if ( _curchar == '$' ) { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3718 // 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
|
3719 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
|
3720 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
|
3721 // 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
|
3722 next_char(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3723 next_char(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3724 skipws(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3725 // 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
|
3726 if ( _curchar == '"' ) { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3727 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
|
3728 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
|
3729 *_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
|
3730 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
|
3731 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3732 |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3733 // 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
|
3734 // (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
|
3735 // (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
|
3736 // (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
|
3737 while ( true ) { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3738 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
|
3739 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
|
3740 return NULL; |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3741 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3742 |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3743 // (1) |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3744 // 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
|
3745 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
|
3746 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
|
3747 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
|
3748 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
|
3749 next_char(); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3750 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
0
diff
changeset
|
3751 // 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
|
3752 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
|
3753 *_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
|
3754 format->_strings.addName(start); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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parents:
0
diff
changeset
|
3755 } |
|
4d9884b01ba6
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parents:
0
diff
changeset
|
3756 |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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0
diff
changeset
|
3757 // (2) |
|
4d9884b01ba6
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parents:
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diff
changeset
|
3758 // If we are at a replacement variable, |
|
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parents:
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diff
changeset
|
3759 // copy it and record in FormatRule |
|
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6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
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diff
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|
3760 if ( _curchar == '$' ) { |
|
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diff
changeset
|
3761 next_char(); // Move past the '$' |
|
603
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|
3762 char* next_rep_var = get_ident(); // Nil terminate the variable name |
|
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|
3763 next_rep_var = strdup(next_rep_var);// Copy the string |
|
415
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|
3764 *_ptr = _curchar; // and replace Nil with original character |
|
603
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|
3765 format->_rep_vars.addName(next_rep_var); |
|
415
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|
3766 // Add flag to _strings list indicating we should check _rep_vars |
|
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|
3767 format->_strings.addName(NameList::_signal); |
|
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|
3768 } |
|
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|
3769 |
|
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diff
changeset
|
3770 // (3) |
|
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|
3771 // Allow very long strings to be broken up, |
|
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|
3772 // using the ANSI C syntax "foo\n" <newline> "bar" |
|
4d9884b01ba6
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|
3773 if ( _curchar == '"') { |
|
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|
3774 next_char(); // Move past the '"' |
|
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|
3775 skipws(); // Skip white space before next string token |
|
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parents:
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|
3776 if ( _curchar != '"') { |
|
4d9884b01ba6
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parents:
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|
3777 break; |
|
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parents:
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|
3778 } else { |
|
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|
3779 // Found one. Skip both " and the whitespace in between. |
|
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parents:
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|
3780 next_char(); |
|
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parents:
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|
3781 } |
|
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parents:
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|
3782 } |
|
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|
3783 } // end while part of format description |
|
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parents:
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|
3784 } |
|
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parents:
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|
3785 } else { |
|
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parents:
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diff
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|
3786 // Add flag to _strings list indicating we should check _rep_vars |
|
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parents:
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|
3787 format->_rep_vars.addName(rep_var); |
|
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parents:
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|
3788 // Add flag to _strings list indicating we should check _rep_vars |
|
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|
3789 format->_strings.addName(NameList::_signal3); |
|
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parents:
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|
3790 } |
|
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|
3791 } // end while part of format description |
|
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|
3792 } |
|
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parents:
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diff
changeset
|
3793 |
|
4d9884b01ba6
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parents:
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diff
changeset
|
3794 skipws(); |
|
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changeset
|
3795 // Past format description, at '%' |
|
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diff
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|
3796 if ( _curchar != '%' || *(_ptr+1) != '}' ) { |
|
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|
3797 parse_err(SYNERR, "missing '%}' at end of format block"); |
|
4d9884b01ba6
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parents:
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|
3798 return NULL; |
|
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parents:
0
diff
changeset
|
3799 } |
|
4d9884b01ba6
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changeset
|
3800 next_char(); // Move past the '%' |
|
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|
3801 next_char(); // Move past the '}' |
|
4d9884b01ba6
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diff
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|
3802 |
|
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diff
changeset
|
3803 // Debug Stuff |
|
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|
3804 if (_AD._adl_debug > 1) fprintf(stderr,"Format Rule: %s\n", desc); |
|
4d9884b01ba6
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|
3805 |
|
4d9884b01ba6
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parents:
0
diff
changeset
|
3806 skipws(); |
|
4d9884b01ba6
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parents:
0
diff
changeset
|
3807 return format; |
|
4d9884b01ba6
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parents:
0
diff
changeset
|
3808 } |
|
4d9884b01ba6
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parents:
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diff
changeset
|
3809 |
|
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|
3810 |
| 0 | 3811 //------------------------------effect_parse----------------------------------- |
| 3812 void ADLParser::effect_parse(InstructForm *instr) { | |
| 3813 char* desc = NULL; | |
| 3814 | |
| 3815 skipws(); // Skip whitespace | |
| 3816 if (_curchar != '(') { | |
| 3817 parse_err(SYNERR, "missing '(' in effect definition\n"); | |
| 3818 return; | |
| 3819 } | |
| 3820 // Get list of effect-operand pairs and insert into dictionary | |
| 3821 else get_effectlist(instr->_effects, instr->_localNames); | |
| 3822 | |
| 3823 // Debug Stuff | |
| 3824 if (_AD._adl_debug > 1) fprintf(stderr,"Effect description: %s\n", desc); | |
| 3825 if (_curchar != ';') { | |
| 3826 parse_err(SYNERR, "missing ';' in Effect definition\n"); | |
| 3827 } | |
| 3828 next_char(); // Skip ';' | |
| 3829 | |
| 3830 } | |
| 3831 | |
| 3832 //------------------------------expand_parse----------------------------------- | |
| 3833 ExpandRule* ADLParser::expand_parse(InstructForm *instr) { | |
| 3834 char *ident, *ident2; | |
| 3835 OperandForm *oper; | |
| 3836 InstructForm *ins; | |
| 3837 NameAndList *instr_and_operands = NULL; | |
| 3838 ExpandRule *exp = new ExpandRule(); | |
| 3839 | |
| 3840 // Expand is a block containing an ordered list of instructions, each of | |
| 3841 // which has an ordered list of operands. | |
| 3842 // Check for block delimiter | |
| 3843 skipws(); // Skip leading whitespace | |
| 3844 if ((_curchar != '%') | |
| 3845 || (next_char(), (_curchar != '{')) ) { // If not open block | |
| 3846 parse_err(SYNERR, "missing '%{' in expand definition\n"); | |
| 3847 return(NULL); | |
| 3848 } | |
| 3849 next_char(); // Maintain the invariant | |
| 3850 do { | |
| 3851 ident = get_ident(); // Grab next identifier | |
| 3852 if (ident == NULL) { | |
| 3853 parse_err(SYNERR, "identifier expected at %c\n", _curchar); | |
| 3854 continue; | |
| 3855 } // Check that you have a valid instruction | |
| 3856 const Form *form = _globalNames[ident]; | |
| 3857 ins = form ? form->is_instruction() : NULL; | |
| 3858 if (ins == NULL) { | |
| 3859 // This is a new operand | |
| 3860 oper = form ? form->is_operand() : NULL; | |
| 3861 if (oper == NULL) { | |
| 3862 parse_err(SYNERR, "instruction/operand name expected at %s\n", ident); | |
| 3863 continue; | |
| 3864 } | |
| 3865 // Throw the operand on the _newopers list | |
| 3866 skipws(); | |
| 3867 ident = get_unique_ident(instr->_localNames,"Operand"); | |
| 3868 if (ident == NULL) { | |
| 3869 parse_err(SYNERR, "identifier expected at %c\n", _curchar); | |
| 3870 continue; | |
| 3871 } | |
| 3872 exp->_newopers.addName(ident); | |
| 3873 // Add new operand to LocalNames | |
| 3874 instr->_localNames.Insert(ident, oper); | |
| 3875 // Grab any constructor code and save as a string | |
| 3876 char *c = NULL; | |
| 3877 skipws(); | |
| 3878 if (_curchar == '%') { // Need a constructor for the operand | |
| 3879 c = find_cpp_block("Operand Constructor"); | |
| 3880 if (c == NULL) { | |
| 3881 parse_err(SYNERR, "Invalid code block for operand constructor\n", _curchar); | |
| 3882 continue; | |
| 3883 } | |
| 3884 // Add constructor to _newopconst Dict | |
| 3885 exp->_newopconst.Insert(ident, c); | |
| 3886 } | |
| 3887 else if (_curchar != ';') { // If no constructor, need a ; | |
| 3888 parse_err(SYNERR, "Missing ; in expand rule operand declaration\n"); | |
| 3889 continue; | |
| 3890 } | |
| 3891 else next_char(); // Skip the ; | |
| 3892 skipws(); | |
| 3893 } | |
| 3894 else { | |
| 3895 // Add instruction to list | |
| 3896 instr_and_operands = new NameAndList(ident); | |
| 3897 // Grab operands, build nameList of them, and then put into dictionary | |
| 3898 skipws(); | |
| 3899 if (_curchar != '(') { // Check for parenthesized operand list | |
| 3900 parse_err(SYNERR, "missing '(' in expand instruction declaration\n"); | |
| 3901 continue; | |
| 3902 } | |
| 3903 do { | |
| 3904 next_char(); // skip open paren & comma characters | |
| 3905 skipws(); | |
| 3906 if (_curchar == ')') break; | |
| 3907 ident2 = get_ident(); | |
| 3908 skipws(); | |
| 3909 if (ident2 == NULL) { | |
| 3910 parse_err(SYNERR, "identifier expected at %c\n", _curchar); | |
| 3911 continue; | |
| 3912 } // Check that you have a valid operand | |
|
603
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twisti
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|
3913 const Form *form2 = instr->_localNames[ident2]; |
|
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|
3914 if (!form2) { |
| 0 | 3915 parse_err(SYNERR, "operand name expected at %s\n", ident2); |
| 3916 continue; | |
| 3917 } | |
|
603
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twisti
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488
diff
changeset
|
3918 oper = form2->is_operand(); |
|
dbbe28fc66b5
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488
diff
changeset
|
3919 if (oper == NULL && !form2->is_opclass()) { |
| 0 | 3920 parse_err(SYNERR, "operand name expected at %s\n", ident2); |
| 3921 continue; | |
| 3922 } // Add operand to list | |
| 3923 instr_and_operands->add_entry(ident2); | |
| 3924 } while(_curchar == ','); | |
| 3925 if (_curchar != ')') { | |
| 3926 parse_err(SYNERR, "missing ')'in expand instruction declaration\n"); | |
| 3927 continue; | |
| 3928 } | |
| 3929 next_char(); | |
| 3930 if (_curchar != ';') { | |
| 3931 parse_err(SYNERR, "missing ';'in expand instruction declaration\n"); | |
| 3932 continue; | |
| 3933 } | |
| 3934 next_char(); | |
| 3935 | |
| 3936 // Record both instruction name and its operand list | |
| 3937 exp->add_instruction(instr_and_operands); | |
| 3938 | |
| 3939 skipws(); | |
| 3940 } | |
| 3941 | |
| 3942 } while(_curchar != '%'); | |
| 3943 next_char(); | |
| 3944 if (_curchar != '}') { | |
| 3945 parse_err(SYNERR, "missing '%}' in expand rule definition\n"); | |
| 3946 return(NULL); | |
| 3947 } | |
| 3948 next_char(); | |
| 3949 | |
| 3950 // Debug Stuff | |
| 3951 if (_AD._adl_debug > 1) fprintf(stderr,"Expand Rule:\n"); | |
| 3952 | |
| 3953 skipws(); | |
| 3954 return (exp); | |
| 3955 } | |
| 3956 | |
| 3957 //------------------------------rewrite_parse---------------------------------- | |
| 3958 RewriteRule* ADLParser::rewrite_parse(void) { | |
| 3959 char* params = NULL; | |
| 3960 char* desc = NULL; | |
| 3961 | |
| 3962 | |
| 3963 // This feature targeted for second generation description language. | |
| 3964 | |
| 3965 skipws(); // Skip whitespace | |
| 3966 // Get parameters for rewrite | |
| 3967 if ((params = get_paren_expr("rewrite parameters")) == NULL) { | |
| 3968 parse_err(SYNERR, "missing '(' in rewrite rule\n"); | |
| 3969 return NULL; | |
| 3970 } | |
| 3971 // Debug Stuff | |
| 3972 if (_AD._adl_debug > 1) fprintf(stderr,"Rewrite parameters: %s\n", params); | |
| 3973 | |
| 3974 // For now, grab entire block; | |
| 3975 skipws(); | |
| 3976 if ( (desc = find_cpp_block("rewrite block")) == NULL ) { | |
| 3977 parse_err(SYNERR, "incorrect or missing block for 'rewrite'.\n"); | |
| 3978 return NULL; | |
| 3979 } | |
| 3980 // Debug Stuff | |
| 3981 if (_AD._adl_debug > 1) fprintf(stderr,"Rewrite Rule: %s\n", desc); | |
| 3982 | |
| 3983 skipws(); | |
| 3984 return (new RewriteRule(params,desc)); | |
| 3985 } | |
| 3986 | |
| 3987 //------------------------------attr_parse------------------------------------- | |
| 3988 Attribute *ADLParser::attr_parse(char* ident) { | |
| 3989 Attribute *attrib; // Attribute class | |
| 3990 char *cost = NULL; // String representation of cost attribute | |
| 3991 | |
| 3992 skipws(); // Skip leading whitespace | |
| 3993 if ( (cost = get_paren_expr("attribute")) == NULL ) { | |
| 3994 parse_err(SYNERR, "incorrect or missing expression for 'attribute'\n"); | |
| 3995 return NULL; | |
| 3996 } | |
| 3997 // Debug Stuff | |
| 3998 if (_AD._adl_debug > 1) fprintf(stderr,"Attribute: %s\n", cost); | |
| 3999 if (_curchar != ';') { | |
| 4000 parse_err(SYNERR, "missing ';' in attribute definition\n"); | |
| 4001 return NULL; | |
| 4002 } | |
| 4003 next_char(); // Point after the terminator | |
| 4004 | |
| 4005 skipws(); | |
| 4006 attrib = new Attribute(ident,cost,INS_ATTR); // Build new predicate object | |
| 4007 return attrib; | |
| 4008 } | |
| 4009 | |
| 4010 | |
| 4011 //------------------------------matchNode_parse-------------------------------- | |
| 4012 MatchNode *ADLParser::matchNode_parse(FormDict &operands, int &depth, int &numleaves, bool atroot) { | |
| 4013 // Count depth of parenthesis nesting for both left and right children | |
| 4014 int lParens = depth; | |
| 4015 int rParens = depth; | |
| 4016 | |
| 4017 // MatchNode objects for left, right, and root of subtree. | |
| 4018 MatchNode *lChild = NULL; | |
| 4019 MatchNode *rChild = NULL; | |
| 4020 char *token; // Identifier which may be opcode or operand | |
| 4021 | |
| 4022 // Match expression starts with a '(' | |
| 4023 if (cur_char() != '(') | |
| 4024 return NULL; | |
| 4025 | |
| 4026 next_char(); // advance past '(' | |
| 4027 | |
| 4028 // Parse the opcode | |
| 4029 token = get_ident(); // Get identifier, opcode | |
| 4030 if (token == NULL) { | |
| 4031 parse_err(SYNERR, "missing opcode in match expression\n"); | |
| 4032 return NULL; | |
| 4033 } | |
| 4034 | |
| 4035 // Take note if we see one of a few special operations - those that are | |
| 4036 // treated differently on different architectures in the sense that on | |
| 4037 // one architecture there is a match rule and on another there isn't (so | |
| 4038 // a call will eventually be generated). | |
| 4039 | |
| 4040 for (int i = _last_machine_leaf + 1; i < _last_opcode; i++) { | |
| 4041 if (strcmp(token, NodeClassNames[i]) == 0) { | |
| 4042 _AD.has_match_rule(i, true); | |
| 4043 } | |
| 4044 } | |
| 4045 | |
| 4046 // Lookup the root value in the operands dict to perform substitution | |
| 4047 const char *result = NULL; // Result type will be filled in later | |
| 4048 const char *name = token; // local name associated with this node | |
| 4049 const char *operation = token; // remember valid operation for later | |
| 4050 const Form *form = operands[token]; | |
| 4051 OpClassForm *opcForm = form ? form->is_opclass() : NULL; | |
| 4052 if (opcForm != NULL) { | |
| 4053 // If this token is an entry in the local names table, record its type | |
| 4054 if (!opcForm->ideal_only()) { | |
| 4055 operation = opcForm->_ident; | |
| 4056 result = operation; // Operands result in their own type | |
| 4057 } | |
| 4058 // Otherwise it is an ideal type, and so, has no local name | |
| 4059 else name = NULL; | |
| 4060 } | |
| 4061 | |
| 4062 // Parse the operands | |
| 4063 skipws(); | |
| 4064 if (cur_char() != ')') { | |
| 4065 | |
| 4066 // Parse the left child | |
| 4067 if (strcmp(operation,"Set")) | |
| 4068 lChild = matchChild_parse(operands, lParens, numleaves, false); | |
| 4069 else | |
| 4070 lChild = matchChild_parse(operands, lParens, numleaves, true); | |
| 4071 | |
| 4072 skipws(); | |
| 4073 if (cur_char() != ')' ) { | |
| 4074 if(strcmp(operation, "Set")) | |
| 4075 rChild = matchChild_parse(operands,rParens,numleaves,false); | |
| 4076 else | |
| 4077 rChild = matchChild_parse(operands,rParens,numleaves,true); | |
| 4078 } | |
| 4079 } | |
| 4080 | |
| 4081 // Check for required ')' | |
| 4082 skipws(); | |
| 4083 if (cur_char() != ')') { | |
| 4084 parse_err(SYNERR, "missing ')' in match expression\n"); | |
| 4085 return NULL; | |
| 4086 } | |
| 4087 next_char(); // skip the ')' | |
| 4088 | |
| 4089 MatchNode* mroot = new MatchNode(_AD,result,name,operation,lChild,rChild); | |
| 4090 | |
| 4091 // If not the root, reduce this subtree to an internal operand | |
| 4092 if (!atroot) { | |
| 4093 mroot->build_internalop(); | |
| 4094 } | |
| 4095 // depth is greater of left and right paths. | |
| 4096 depth = (lParens > rParens) ? lParens : rParens; | |
| 4097 | |
| 4098 return mroot; | |
| 4099 } | |
| 4100 | |
| 4101 | |
| 4102 //------------------------------matchChild_parse------------------------------- | |
| 4103 MatchNode *ADLParser::matchChild_parse(FormDict &operands, int &parens, int &numleaves, bool atroot) { | |
| 4104 MatchNode *child = NULL; | |
| 4105 const char *result = NULL; | |
| 4106 const char *token = NULL; | |
| 4107 const char *opType = NULL; | |
| 4108 | |
| 4109 if (cur_char() == '(') { // child is an operation | |
| 4110 ++parens; | |
| 4111 child = matchNode_parse(operands, parens, numleaves, atroot); | |
| 4112 } | |
| 4113 else { // child is an operand | |
| 4114 token = get_ident(); | |
| 4115 const Form *form = operands[token]; | |
| 4116 OpClassForm *opcForm = form ? form->is_opclass() : NULL; | |
| 4117 if (opcForm != NULL) { | |
| 4118 opType = opcForm->_ident; | |
| 4119 result = opcForm->_ident; // an operand's result matches its type | |
| 4120 } else { | |
| 4121 parse_err(SYNERR, "undefined operand %s in match rule\n", token); | |
| 4122 return NULL; | |
| 4123 } | |
| 4124 | |
| 4125 if (opType == NULL) { | |
| 4126 parse_err(SYNERR, "missing type for argument '%s'\n", token); | |
| 4127 } | |
| 4128 | |
| 4129 child = new MatchNode(_AD, result, token, opType); | |
| 4130 ++numleaves; | |
| 4131 } | |
| 4132 | |
| 4133 return child; | |
| 4134 } | |
| 4135 | |
| 4136 | |
| 4137 | |
| 4138 // ******************** Private Utility Functions ************************* | |
| 4139 | |
| 4140 | |
| 4141 char* ADLParser::find_cpp_block(const char* description) { | |
| 4142 char *next; // Pointer for finding block delimiters | |
| 4143 char* cppBlock = NULL; // Beginning of C++ code block | |
| 4144 | |
| 4145 if (_curchar == '%') { // Encoding is a C++ expression | |
| 4146 next_char(); | |
| 4147 if (_curchar != '{') { | |
| 4148 parse_err(SYNERR, "missing '{' in %s \n", description); | |
| 4149 return NULL; | |
| 4150 } | |
| 4151 next_char(); // Skip block delimiter | |
| 4152 skipws_no_preproc(); // Skip leading whitespace | |
| 4153 cppBlock = _ptr; // Point to start of expression | |
|
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4154 int line = linenum(); |
| 0 | 4155 next = _ptr + 1; |
| 4156 while(((_curchar != '%') || (*next != '}')) && (_curchar != '\0')) { | |
| 4157 next_char_or_line(); | |
| 4158 next = _ptr+1; // Maintain the next pointer | |
| 4159 } // Grab string | |
| 4160 if (_curchar == '\0') { | |
| 4161 parse_err(SYNERR, "invalid termination of %s \n", description); | |
| 4162 return NULL; | |
| 4163 } | |
| 4164 *_ptr = '\0'; // Terminate string | |
| 4165 _ptr += 2; // Skip block delimiter | |
| 4166 _curchar = *_ptr; // Maintain invariant | |
| 4167 | |
| 4168 // Prepend location descriptor, for debugging. | |
|
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4169 if (_AD._adlocation_debug) { |
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4170 char* location = get_line_string(line); |
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4171 char* end_loc = end_line_marker(); |
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4172 char* result = (char *)malloc(strlen(location) + strlen(cppBlock) + strlen(end_loc) + 1); |
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4173 strcpy(result, location); |
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4174 strcat(result, cppBlock); |
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4175 strcat(result, end_loc); |
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4176 cppBlock = result; |
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4177 free(location); |
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4178 } |
| 0 | 4179 } |
| 4180 | |
| 4181 return cppBlock; | |
| 4182 } | |
| 4183 | |
| 4184 // Move to the closing token of the expression we are currently at, | |
| 4185 // as defined by stop_chars. Match parens and quotes. | |
| 4186 char* ADLParser::get_expr(const char *desc, const char *stop_chars) { | |
| 4187 char* expr = NULL; | |
| 4188 int paren = 0; | |
| 4189 | |
| 4190 expr = _ptr; | |
| 4191 while (paren > 0 || !strchr(stop_chars, _curchar)) { | |
| 4192 if (_curchar == '(') { // Down level of nesting | |
| 4193 paren++; // Bump the parenthesis counter | |
| 4194 next_char(); // maintain the invariant | |
| 4195 } | |
| 4196 else if (_curchar == ')') { // Up one level of nesting | |
| 4197 if (paren == 0) { | |
| 4198 // Paren underflow: We didn't encounter the required stop-char. | |
| 4199 parse_err(SYNERR, "too many )'s, did not find %s after %s\n", | |
| 4200 stop_chars, desc); | |
| 4201 return NULL; | |
| 4202 } | |
| 4203 paren--; // Drop the parenthesis counter | |
| 4204 next_char(); // Maintain the invariant | |
| 4205 } | |
| 4206 else if (_curchar == '"' || _curchar == '\'') { | |
| 4207 int qchar = _curchar; | |
| 4208 while (true) { | |
| 4209 next_char(); | |
| 4210 if (_curchar == qchar) { next_char(); break; } | |
| 4211 if (_curchar == '\\') next_char(); // superquote | |
| 4212 if (_curchar == '\n' || _curchar == '\0') { | |
| 4213 parse_err(SYNERR, "newline in string in %s\n", desc); | |
| 4214 return NULL; | |
| 4215 } | |
| 4216 } | |
| 4217 } | |
| 4218 else if (_curchar == '%' && (_ptr[1] == '{' || _ptr[1] == '}')) { | |
| 4219 // Make sure we do not stray into the next ADLC-level form. | |
| 4220 parse_err(SYNERR, "unexpected %%%c in %s\n", _ptr[1], desc); | |
| 4221 return NULL; | |
| 4222 } | |
| 4223 else if (_curchar == '\0') { | |
| 4224 parse_err(SYNERR, "unexpected EOF in %s\n", desc); | |
| 4225 return NULL; | |
| 4226 } | |
| 4227 else { | |
| 4228 // Always walk over whitespace, comments, preprocessor directives, etc. | |
| 4229 char* pre_skip_ptr = _ptr; | |
| 4230 skipws(); | |
| 4231 // If the parser declined to make progress on whitespace, | |
| 4232 // skip the next character, which is therefore NOT whitespace. | |
| 4233 if (pre_skip_ptr == _ptr) { | |
| 4234 next_char(); | |
| 4235 } else if (pre_skip_ptr+strlen(pre_skip_ptr) != _ptr+strlen(_ptr)) { | |
| 4236 parse_err(SYNERR, "unimplemented: preprocessor must not elide subexpression in %s", desc); | |
| 4237 } | |
| 4238 } | |
| 4239 } | |
| 4240 | |
| 4241 assert(strchr(stop_chars, _curchar), "non-null return must be at stop-char"); | |
| 4242 *_ptr = '\0'; // Replace ')' or other stop-char with '\0' | |
| 4243 return expr; | |
| 4244 } | |
| 4245 | |
| 4246 // Helper function around get_expr | |
| 4247 // Sets _curchar to '(' so that get_paren_expr will search for a matching ')' | |
|
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4248 char *ADLParser::get_paren_expr(const char *description, bool include_location) { |
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4249 int line = linenum(); |
| 0 | 4250 if (_curchar != '(') // Escape if not valid starting position |
| 4251 return NULL; | |
| 4252 next_char(); // Skip the required initial paren. | |
| 4253 char *token2 = get_expr(description, ")"); | |
| 4254 if (_curchar == ')') | |
| 4255 next_char(); // Skip required final paren. | |
|
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4256 int junk = 0; |
|
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4257 if (include_location && _AD._adlocation_debug && !is_int_token(token2, junk)) { |
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4258 // Prepend location descriptor, for debugging. |
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4259 char* location = get_line_string(line); |
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4260 char* end_loc = end_line_marker(); |
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4261 char* result = (char *)malloc(strlen(location) + strlen(token2) + strlen(end_loc) + 1); |
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4262 strcpy(result, location); |
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4263 strcat(result, token2); |
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4264 strcat(result, end_loc); |
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4265 token2 = result; |
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4266 free(location); |
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|
4267 } |
| 0 | 4268 return token2; |
| 4269 } | |
| 4270 | |
| 4271 //------------------------------get_ident_common------------------------------- | |
| 4272 // Looks for an identifier in the buffer, and turns it into a null terminated | |
| 4273 // string(still inside the file buffer). Returns a pointer to the string or | |
| 4274 // NULL if some other token is found instead. | |
| 4275 char *ADLParser::get_ident_common(bool do_preproc) { | |
| 4276 register char c; | |
| 4277 char *start; // Pointer to start of token | |
| 4278 char *end; // Pointer to end of token | |
| 4279 | |
| 4280 if( _curline == NULL ) // Return NULL at EOF. | |
| 4281 return NULL; | |
| 4282 | |
| 4283 skipws_common(do_preproc); // Skip whitespace before identifier | |
| 4284 start = end = _ptr; // Start points at first character | |
| 4285 end--; // unwind end by one to prepare for loop | |
| 4286 do { | |
| 4287 end++; // Increment end pointer | |
| 4288 c = *end; // Grab character to test | |
| 4289 } while ( ((c >= 'a') && (c <= 'z')) || ((c >= 'A') && (c <= 'Z')) | |
| 4290 || ((c >= '0') && (c <= '9')) | |
| 4291 || ((c == '_')) || ((c == ':')) || ((c == '#')) ); | |
| 4292 if (start == end) { // We popped out on the first try | |
| 4293 parse_err(SYNERR, "identifier expected at %c\n", c); | |
| 4294 start = NULL; | |
| 4295 } | |
| 4296 else { | |
| 4297 _curchar = c; // Save the first character of next token | |
| 4298 *end = '\0'; // NULL terminate the string in place | |
| 4299 } | |
| 4300 _ptr = end; // Reset _ptr to point to next char after token | |
| 4301 | |
| 4302 // Make sure we do not try to use #defined identifiers. If start is | |
| 4303 // NULL an error was already reported. | |
| 4304 if (do_preproc && start != NULL) { | |
| 4305 const char* def = _AD.get_preproc_def(start); | |
| 4306 if (def != NULL && strcmp(def, start)) { | |
|
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4307 const char* def1 = def; |
|
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4308 const char* def2 = _AD.get_preproc_def(def1); |
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4309 // implement up to 2 levels of #define |
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4310 if (def2 != NULL && strcmp(def2, def1)) { |
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4311 def = def2; |
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4312 const char* def3 = _AD.get_preproc_def(def2); |
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4313 if (def3 != NULL && strcmp(def3, def2) && strcmp(def3, def1)) { |
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4314 parse_err(SYNERR, "unimplemented: using %s defined as %s => %s => %s", |
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4315 start, def1, def2, def3); |
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4316 } |
| 0 | 4317 } |
| 4318 start = strdup(def); | |
| 4319 } | |
| 4320 } | |
| 4321 | |
| 4322 return start; // Pointer to token in filebuf | |
| 4323 } | |
| 4324 | |
| 4325 //------------------------------get_ident_dup---------------------------------- | |
| 4326 // Looks for an identifier in the buffer, and returns a duplicate | |
| 4327 // or NULL if some other token is found instead. | |
| 4328 char *ADLParser::get_ident_dup(void) { | |
| 4329 char *ident = get_ident(); | |
| 4330 | |
| 4331 // Duplicate an identifier before returning and restore string. | |
| 4332 if( ident != NULL ) { | |
| 4333 ident = strdup(ident); // Copy the string | |
| 4334 *_ptr = _curchar; // and replace Nil with original character | |
| 4335 } | |
| 4336 | |
| 4337 return ident; | |
| 4338 } | |
| 4339 | |
| 4340 //----------------------get_ident_or_literal_constant-------------------------- | |
| 4341 // Looks for an identifier in the buffer, or a parenthesized expression. | |
| 4342 char *ADLParser::get_ident_or_literal_constant(const char* description) { | |
| 4343 char* param = NULL; | |
| 4344 skipws(); | |
| 4345 if (_curchar == '(') { | |
| 4346 // Grab a constant expression. | |
| 4347 param = get_paren_expr(description); | |
| 4348 if (param[0] != '(') { | |
| 4349 char* buf = (char*) malloc(strlen(param) + 3); | |
| 4350 sprintf(buf, "(%s)", param); | |
| 4351 param = buf; | |
| 4352 } | |
| 4353 assert(is_literal_constant(param), | |
| 4354 "expr must be recognizable as a constant"); | |
| 4355 } else { | |
| 4356 param = get_ident(); | |
| 4357 } | |
| 4358 return param; | |
| 4359 } | |
| 4360 | |
| 4361 //------------------------------get_rep_var_ident----------------------------- | |
| 4362 // Do NOT duplicate, | |
| 4363 // Leave nil terminator in buffer | |
| 4364 // Preserve initial '$'(s) in string | |
| 4365 char *ADLParser::get_rep_var_ident(void) { | |
| 4366 // Remember starting point | |
| 4367 char *rep_var = _ptr; | |
| 4368 | |
| 4369 // Check for replacement variable indicator '$' and pass if present | |
| 4370 if ( _curchar == '$' ) { | |
| 4371 next_char(); | |
| 4372 } | |
| 4373 // Check for a subfield indicator, a second '$', and pass if present | |
| 4374 if ( _curchar == '$' ) { | |
| 4375 next_char(); | |
| 4376 } | |
| 4377 | |
| 4378 // Check for a control indicator, a third '$': | |
| 4379 if ( _curchar == '$' ) { | |
| 4380 next_char(); | |
| 4381 } | |
| 4382 | |
| 4383 // Check for more than three '$'s in sequence, SYNERR | |
| 4384 if( _curchar == '$' ) { | |
| 4385 parse_err(SYNERR, "Replacement variables and field specifiers can not start with '$$$$'"); | |
| 4386 next_char(); | |
| 4387 return NULL; | |
| 4388 } | |
| 4389 | |
| 4390 // Nil terminate the variable name following the '$' | |
| 4391 char *rep_var_name = get_ident(); | |
| 4392 assert( rep_var_name != NULL, | |
| 4393 "Missing identifier after replacement variable indicator '$'"); | |
| 4394 | |
| 4395 return rep_var; | |
| 4396 } | |
| 4397 | |
| 4398 | |
| 4399 | |
| 4400 //------------------------------get_rep_var_ident_dup------------------------- | |
| 4401 // Return the next replacement variable identifier, skipping first '$' | |
| 4402 // given a pointer into a line of the buffer. | |
| 4403 // Null terminates string, still inside the file buffer, | |
| 4404 // Returns a pointer to a copy of the string, or NULL on failure | |
| 4405 char *ADLParser::get_rep_var_ident_dup(void) { | |
| 4406 if( _curchar != '$' ) return NULL; | |
| 4407 | |
| 4408 next_char(); // Move past the '$' | |
| 4409 char *rep_var = _ptr; // Remember starting point | |
| 4410 | |
| 4411 // Check for a subfield indicator, a second '$': | |
| 4412 if ( _curchar == '$' ) { | |
| 4413 next_char(); | |
| 4414 } | |
| 4415 | |
| 4416 // Check for a control indicator, a third '$': | |
| 4417 if ( _curchar == '$' ) { | |
| 4418 next_char(); | |
| 4419 } | |
| 4420 | |
| 4421 // Check for more than three '$'s in sequence, SYNERR | |
| 4422 if( _curchar == '$' ) { | |
| 4423 parse_err(SYNERR, "Replacement variables and field specifiers can not start with '$$$$'"); | |
| 4424 next_char(); | |
| 4425 return NULL; | |
| 4426 } | |
| 4427 | |
| 4428 // Nil terminate the variable name following the '$' | |
| 4429 char *rep_var_name = get_ident(); | |
| 4430 assert( rep_var_name != NULL, | |
| 4431 "Missing identifier after replacement variable indicator '$'"); | |
| 4432 rep_var = strdup(rep_var); // Copy the string | |
| 4433 *_ptr = _curchar; // and replace Nil with original character | |
| 4434 | |
| 4435 return rep_var; | |
| 4436 } | |
| 4437 | |
| 4438 | |
| 4439 //------------------------------get_unique_ident------------------------------ | |
| 4440 // Looks for an identifier in the buffer, terminates it with a NULL, | |
| 4441 // and checks that it is unique | |
| 4442 char *ADLParser::get_unique_ident(FormDict& dict, const char* nameDescription){ | |
| 4443 char* ident = get_ident(); | |
| 4444 | |
| 4445 if (ident == NULL) { | |
| 4446 parse_err(SYNERR, "missing %s identifier at %c\n", nameDescription, _curchar); | |
| 4447 } | |
| 4448 else { | |
| 4449 if (dict[ident] != NULL) { | |
| 4450 parse_err(SYNERR, "duplicate name %s for %s\n", ident, nameDescription); | |
| 4451 ident = NULL; | |
| 4452 } | |
| 4453 } | |
| 4454 | |
| 4455 return ident; | |
| 4456 } | |
| 4457 | |
| 4458 | |
| 4459 //------------------------------get_int---------------------------------------- | |
| 4460 // Looks for a character string integer in the buffer, and turns it into an int | |
| 4461 // invokes a parse_err if the next token is not an integer. | |
| 4462 // This routine does not leave the integer null-terminated. | |
| 4463 int ADLParser::get_int(void) { | |
| 4464 register char c; | |
| 4465 char *start; // Pointer to start of token | |
| 4466 char *end; // Pointer to end of token | |
| 4467 int result; // Storage for integer result | |
| 4468 | |
| 4469 if( _curline == NULL ) // Return NULL at EOF. | |
|
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4470 return 0; |
| 0 | 4471 |
| 4472 skipws(); // Skip whitespace before identifier | |
| 4473 start = end = _ptr; // Start points at first character | |
| 4474 c = *end; // Grab character to test | |
| 4475 while ((c >= '0') && (c <= '9') | |
| 4476 || ((c == '-') && (end == start))) { | |
| 4477 end++; // Increment end pointer | |
| 4478 c = *end; // Grab character to test | |
| 4479 } | |
| 4480 if (start == end) { // We popped out on the first try | |
| 4481 parse_err(SYNERR, "integer expected at %c\n", c); | |
| 4482 result = 0; | |
| 4483 } | |
| 4484 else { | |
| 4485 _curchar = c; // Save the first character of next token | |
| 4486 *end = '\0'; // NULL terminate the string in place | |
| 4487 result = atoi(start); // Convert the string to an integer | |
| 4488 *end = _curchar; // Restore buffer to original condition | |
| 4489 } | |
| 4490 | |
| 4491 // Reset _ptr to next char after token | |
| 4492 _ptr = end; | |
| 4493 | |
| 4494 return result; // integer | |
| 4495 } | |
| 4496 | |
| 4497 | |
| 4498 //------------------------------get_relation_dup------------------------------ | |
| 4499 // Looks for a relational operator in the buffer | |
| 4500 // invokes a parse_err if the next token is not a relation | |
| 4501 // This routine creates a duplicate of the string in the buffer. | |
| 4502 char *ADLParser::get_relation_dup(void) { | |
| 4503 char *result = NULL; // relational operator being returned | |
| 4504 | |
| 4505 if( _curline == NULL ) // Return NULL at EOF. | |
| 4506 return NULL; | |
| 4507 | |
| 4508 skipws(); // Skip whitespace before relation | |
| 4509 char *start = _ptr; // Store start of relational operator | |
| 4510 char first = *_ptr; // the first character | |
| 4511 if( (first == '=') || (first == '!') || (first == '<') || (first == '>') ) { | |
| 4512 next_char(); | |
| 4513 char second = *_ptr; // the second character | |
| 4514 if( (second == '=') ) { | |
| 4515 next_char(); | |
| 4516 char tmp = *_ptr; | |
| 4517 *_ptr = '\0'; // NULL terminate | |
| 4518 result = strdup(start); // Duplicate the string | |
| 4519 *_ptr = tmp; // restore buffer | |
| 4520 } else { | |
| 4521 parse_err(SYNERR, "relational operator expected at %s\n", _ptr); | |
| 4522 } | |
| 4523 } else { | |
| 4524 parse_err(SYNERR, "relational operator expected at %s\n", _ptr); | |
| 4525 } | |
| 4526 | |
| 4527 return result; | |
| 4528 } | |
| 4529 | |
| 4530 | |
| 4531 | |
| 4532 //------------------------------get_oplist------------------------------------- | |
| 4533 // Looks for identifier pairs where first must be the name of an operand, and | |
| 4534 // second must be a name unique in the scope of this instruction. Stores the | |
| 4535 // names with a pointer to the OpClassForm of their type in a local name table. | |
| 4536 void ADLParser::get_oplist(NameList ¶meters, FormDict &operands) { | |
| 4537 OpClassForm *opclass = NULL; | |
| 4538 char *ident = NULL; | |
| 4539 | |
| 4540 do { | |
| 4541 next_char(); // skip open paren & comma characters | |
| 4542 skipws(); | |
| 4543 if (_curchar == ')') break; | |
| 4544 | |
| 4545 // Get operand type, and check it against global name table | |
| 4546 ident = get_ident(); | |
| 4547 if (ident == NULL) { | |
| 4548 parse_err(SYNERR, "optype identifier expected at %c\n", _curchar); | |
| 4549 return; | |
| 4550 } | |
| 4551 else { | |
| 4552 const Form *form = _globalNames[ident]; | |
| 4553 if( form == NULL ) { | |
| 4554 parse_err(SYNERR, "undefined operand type %s\n", ident); | |
| 4555 return; | |
| 4556 } | |
| 4557 | |
| 4558 // Check for valid operand type | |
| 4559 OpClassForm *opc = form->is_opclass(); | |
| 4560 OperandForm *oper = form->is_operand(); | |
| 4561 if((oper == NULL) && (opc == NULL)) { | |
| 4562 parse_err(SYNERR, "identifier %s not operand type\n", ident); | |
| 4563 return; | |
| 4564 } | |
| 4565 opclass = opc; | |
| 4566 } | |
| 4567 // Debugging Stuff | |
| 4568 if (_AD._adl_debug > 1) fprintf(stderr, "\tOperand Type: %s\t", ident); | |
| 4569 | |
| 4570 // Get name of operand and add it to local name table | |
| 4571 if( (ident = get_unique_ident(operands, "operand")) == NULL) { | |
| 4572 return; | |
| 4573 } | |
| 4574 // Parameter names must not be global names. | |
| 4575 if( _globalNames[ident] != NULL ) { | |
| 4576 parse_err(SYNERR, "Reuse of global name %s as operand.\n",ident); | |
| 4577 return; | |
| 4578 } | |
| 4579 operands.Insert(ident, opclass); | |
| 4580 parameters.addName(ident); | |
| 4581 | |
| 4582 // Debugging Stuff | |
| 4583 if (_AD._adl_debug > 1) fprintf(stderr, "\tOperand Name: %s\n", ident); | |
| 4584 skipws(); | |
| 4585 } while(_curchar == ','); | |
| 4586 | |
| 4587 if (_curchar != ')') parse_err(SYNERR, "missing ')'\n"); | |
| 4588 else { | |
| 4589 next_char(); // set current character position past the close paren | |
| 4590 } | |
| 4591 } | |
| 4592 | |
| 4593 | |
| 4594 //------------------------------get_effectlist--------------------------------- | |
| 4595 // Looks for identifier pairs where first must be the name of a pre-defined, | |
| 4596 // effect, and the second must be the name of an operand defined in the | |
| 4597 // operand list of this instruction. Stores the names with a pointer to the | |
| 4598 // effect form in a local effects table. | |
| 4599 void ADLParser::get_effectlist(FormDict &effects, FormDict &operands) { | |
| 4600 OperandForm *opForm; | |
| 4601 Effect *eForm; | |
| 4602 char *ident; | |
| 4603 | |
| 4604 do { | |
| 4605 next_char(); // skip open paren & comma characters | |
| 4606 skipws(); | |
| 4607 if (_curchar == ')') break; | |
| 4608 | |
| 4609 // Get effect type, and check it against global name table | |
| 4610 ident = get_ident(); | |
| 4611 if (ident == NULL) { | |
| 4612 parse_err(SYNERR, "effect type identifier expected at %c\n", _curchar); | |
| 4613 return; | |
| 4614 } | |
| 4615 else { | |
| 4616 // Check for valid effect type | |
| 4617 const Form *form = _globalNames[ident]; | |
| 4618 if( form == NULL ) { | |
| 4619 parse_err(SYNERR, "undefined effect type %s\n", ident); | |
| 4620 return; | |
| 4621 } | |
| 4622 else { | |
| 4623 if( (eForm = form->is_effect()) == NULL) { | |
| 4624 parse_err(SYNERR, "identifier %s not effect type\n", ident); | |
| 4625 return; | |
| 4626 } | |
| 4627 } | |
| 4628 } | |
| 4629 // Debugging Stuff | |
| 4630 if (_AD._adl_debug > 1) fprintf(stderr, "\tEffect Type: %s\t", ident); | |
| 4631 skipws(); | |
| 4632 // Get name of operand and check that it is in the local name table | |
| 4633 if( (ident = get_unique_ident(effects, "effect")) == NULL) { | |
| 4634 parse_err(SYNERR, "missing operand identifier in effect list\n"); | |
| 4635 return; | |
| 4636 } | |
| 4637 const Form *form = operands[ident]; | |
| 4638 opForm = form ? form->is_operand() : NULL; | |
| 4639 if( opForm == NULL ) { | |
| 4640 if( form && form->is_opclass() ) { | |
| 4641 const char* cname = form->is_opclass()->_ident; | |
| 4642 parse_err(SYNERR, "operand classes are illegal in effect lists (found %s %s)\n", cname, ident); | |
| 4643 } else { | |
| 4644 parse_err(SYNERR, "undefined operand %s in effect list\n", ident); | |
| 4645 } | |
| 4646 return; | |
| 4647 } | |
| 4648 // Add the pair to the effects table | |
| 4649 effects.Insert(ident, eForm); | |
| 4650 // Debugging Stuff | |
| 4651 if (_AD._adl_debug > 1) fprintf(stderr, "\tOperand Name: %s\n", ident); | |
| 4652 skipws(); | |
| 4653 } while(_curchar == ','); | |
| 4654 | |
| 4655 if (_curchar != ')') parse_err(SYNERR, "missing ')'\n"); | |
| 4656 else { | |
| 4657 next_char(); // set current character position past the close paren | |
| 4658 } | |
| 4659 } | |
| 4660 | |
| 4661 | |
|
475
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|
4662 //-------------------------------preproc_line---------------------------------- |
|
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|
4663 // A "#line" keyword has been seen, so parse the rest of the line. |
|
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|
4664 void ADLParser::preproc_line(void) { |
|
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6771309: debugging AD files is difficult without #line directives in generated code
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|
4665 int line = get_int(); |
|
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|
4666 skipws_no_preproc(); |
|
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
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|
4667 const char* file = NULL; |
|
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6771309: debugging AD files is difficult without #line directives in generated code
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diff
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|
4668 if (_curchar == '"') { |
|
284d0af00d53
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|
4669 next_char(); // Move past the initial '"' |
|
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|
4670 file = _ptr; |
|
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6771309: debugging AD files is difficult without #line directives in generated code
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|
4671 while (true) { |
|
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|
4672 if (_curchar == '\n') { |
|
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|
4673 parse_err(SYNERR, "missing '\"' at end of #line directive"); |
|
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|
4674 return; |
|
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|
4675 } |
|
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6771309: debugging AD files is difficult without #line directives in generated code
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|
4676 if (_curchar == '"') { |
|
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|
4677 *_ptr = '\0'; // Terminate the string |
|
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|
4678 next_char(); |
|
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|
4679 skipws_no_preproc(); |
|
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|
4680 break; |
|
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|
4681 } |
|
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|
4682 next_char(); |
|
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|
4683 } |
|
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|
4684 } |
|
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|
4685 ensure_end_of_line(); |
|
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|
4686 if (file != NULL) |
|
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|
4687 _AD._ADL_file._name = file; |
|
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|
4688 _buf.set_linenum(line); |
|
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|
4689 } |
|
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|
4690 |
| 0 | 4691 //------------------------------preproc_define--------------------------------- |
| 4692 // A "#define" keyword has been seen, so parse the rest of the line. | |
| 4693 void ADLParser::preproc_define(void) { | |
| 4694 char* flag = get_ident_no_preproc(); | |
| 4695 skipws_no_preproc(); | |
| 4696 // only #define x y is supported for now | |
| 4697 char* def = get_ident_no_preproc(); | |
| 4698 _AD.set_preproc_def(flag, def); | |
| 4699 skipws_no_preproc(); | |
| 4700 if (_curchar != '\n') { | |
| 4701 parse_err(SYNERR, "non-identifier in preprocessor definition\n"); | |
| 4702 } | |
| 4703 } | |
| 4704 | |
| 4705 //------------------------------preproc_undef---------------------------------- | |
| 4706 // An "#undef" keyword has been seen, so parse the rest of the line. | |
| 4707 void ADLParser::preproc_undef(void) { | |
| 4708 char* flag = get_ident_no_preproc(); | |
| 4709 skipws_no_preproc(); | |
| 4710 ensure_end_of_line(); | |
| 4711 _AD.set_preproc_def(flag, NULL); | |
| 4712 } | |
| 4713 | |
| 4714 | |
| 4715 | |
| 4716 //------------------------------parse_err-------------------------------------- | |
| 4717 // Issue a parser error message, and skip to the end of the current line | |
| 4718 void ADLParser::parse_err(int flag, const char *fmt, ...) { | |
| 4719 va_list args; | |
| 4720 | |
| 4721 va_start(args, fmt); | |
| 4722 if (flag == 1) | |
|
415
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|
4723 _AD._syntax_errs += _AD.emit_msg(0, flag, linenum(), fmt, args); |
| 0 | 4724 else if (flag == 2) |
|
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parents:
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diff
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|
4725 _AD._semantic_errs += _AD.emit_msg(0, flag, linenum(), fmt, args); |
| 0 | 4726 else |
|
415
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|
4727 _AD._warnings += _AD.emit_msg(0, flag, linenum(), fmt, args); |
| 0 | 4728 |
| 4729 int error_char = _curchar; | |
| 4730 char* error_ptr = _ptr+1; | |
| 4731 for(;*_ptr != '\n'; _ptr++) ; // Skip to the end of the current line | |
| 4732 _curchar = '\n'; | |
| 4733 va_end(args); | |
| 4734 _AD._no_output = 1; | |
| 4735 | |
| 4736 if (flag == 1) { | |
| 4737 char* error_tail = strchr(error_ptr, '\n'); | |
| 4738 char tem = *error_ptr; | |
| 4739 error_ptr[-1] = '\0'; | |
| 4740 char* error_head = error_ptr-1; | |
| 4741 while (error_head > _curline && *error_head) --error_head; | |
| 4742 if (error_tail) *error_tail = '\0'; | |
| 4743 fprintf(stderr, "Error Context: %s>>>%c<<<%s\n", | |
| 4744 error_head, error_char, error_ptr); | |
| 4745 if (error_tail) *error_tail = '\n'; | |
| 4746 error_ptr[-1] = tem; | |
| 4747 } | |
| 4748 } | |
| 4749 | |
| 4750 //---------------------------ensure_start_of_line------------------------------ | |
| 4751 // A preprocessor directive has been encountered. Be sure it has fallen at | |
| 605 | 4752 // the beginning of a line, or else report an error. |
| 0 | 4753 void ADLParser::ensure_start_of_line(void) { |
|
475
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6771309: debugging AD files is difficult without #line directives in generated code
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|
4754 if (_curchar == '\n') { next_line(); return; } |
| 0 | 4755 assert( _ptr >= _curline && _ptr < _curline+strlen(_curline), |
| 4756 "Must be able to find which line we are in" ); | |
| 4757 | |
| 4758 for (char *s = _curline; s < _ptr; s++) { | |
| 4759 if (*s > ' ') { | |
| 4760 parse_err(SYNERR, "'%c' must be at beginning of line\n", _curchar); | |
| 4761 break; | |
| 4762 } | |
| 4763 } | |
| 4764 } | |
| 4765 | |
| 4766 //---------------------------ensure_end_of_line-------------------------------- | |
| 4767 // A preprocessor directive has been parsed. Be sure there is no trailing | |
| 4768 // garbage at the end of this line. Set the scan point to the beginning of | |
| 4769 // the next line. | |
| 4770 void ADLParser::ensure_end_of_line(void) { | |
| 4771 skipws_no_preproc(); | |
| 4772 if (_curchar != '\n' && _curchar != '\0') { | |
| 4773 parse_err(SYNERR, "garbage char '%c' at end of line\n", _curchar); | |
| 4774 } else { | |
| 4775 next_char_or_line(); | |
| 4776 } | |
| 4777 } | |
| 4778 | |
| 4779 //---------------------------handle_preproc------------------------------------ | |
| 4780 // The '#' character introducing a preprocessor directive has been found. | |
| 4781 // Parse the whole directive name (e.g., #define, #endif) and take appropriate | |
| 4782 // action. If we are in an "untaken" span of text, simply keep track of | |
| 4783 // #ifdef nesting structure, so we can find out when to start taking text | |
| 4784 // again. (In this state, we "sort of support" C's #if directives, enough | |
| 4785 // to disregard their associated #else and #endif lines.) If we are in a | |
| 4786 // "taken" span of text, there are two cases: "#define" and "#undef" | |
| 4787 // directives are preserved and passed up to the caller, which eventually | |
| 4788 // passes control to the top-level parser loop, which handles #define and | |
| 4789 // #undef directly. (This prevents these directives from occurring in | |
| 4790 // arbitrary positions in the AD file--we require better structure than C.) | |
| 4791 // In the other case, and #ifdef, #ifndef, #else, or #endif is silently | |
| 4792 // processed as whitespace, with the "taken" state of the text correctly | |
| 4793 // updated. This routine returns "false" exactly in the case of a "taken" | |
| 4794 // #define or #undef, which tells the caller that a preprocessor token | |
| 4795 // has appeared which must be handled explicitly by the parse loop. | |
| 4796 bool ADLParser::handle_preproc_token() { | |
| 4797 assert(*_ptr == '#', "must be at start of preproc"); | |
| 4798 ensure_start_of_line(); | |
| 4799 next_char(); | |
| 4800 skipws_no_preproc(); | |
| 4801 char* start_ident = _ptr; | |
| 4802 char* ident = (_curchar == '\n') ? NULL : get_ident_no_preproc(); | |
| 4803 if (ident == NULL) { | |
| 4804 parse_err(SYNERR, "expected preprocessor command, got end of line\n"); | |
| 4805 } else if (!strcmp(ident, "ifdef") || | |
| 4806 !strcmp(ident, "ifndef")) { | |
| 4807 char* flag = get_ident_no_preproc(); | |
| 4808 ensure_end_of_line(); | |
| 4809 // Test the identifier only if we are already in taken code: | |
| 4810 bool flag_def = preproc_taken() && (_AD.get_preproc_def(flag) != NULL); | |
| 4811 bool now_taken = !strcmp(ident, "ifdef") ? flag_def : !flag_def; | |
| 4812 begin_if_def(now_taken); | |
| 4813 } else if (!strcmp(ident, "if")) { | |
| 4814 if (preproc_taken()) | |
| 4815 parse_err(SYNERR, "unimplemented: #%s %s", ident, _ptr+1); | |
| 4816 next_line(); | |
| 4817 // Intelligently skip this nested C preprocessor directive: | |
| 4818 begin_if_def(true); | |
| 4819 } else if (!strcmp(ident, "else")) { | |
| 4820 ensure_end_of_line(); | |
| 4821 invert_if_def(); | |
| 4822 } else if (!strcmp(ident, "endif")) { | |
| 4823 ensure_end_of_line(); | |
| 4824 end_if_def(); | |
| 4825 } else if (preproc_taken()) { | |
| 4826 // pass this token up to the main parser as "#define" or "#undef" | |
| 4827 _ptr = start_ident; | |
| 4828 _curchar = *--_ptr; | |
| 4829 if( _curchar != '#' ) { | |
| 4830 parse_err(SYNERR, "no space allowed after # in #define or #undef"); | |
| 4831 assert(_curchar == '#', "no space allowed after # in #define or #undef"); | |
| 4832 } | |
| 4833 return false; | |
| 4834 } | |
| 4835 return true; | |
| 4836 } | |
| 4837 | |
| 4838 //---------------------------skipws_common------------------------------------- | |
| 4839 // Skip whitespace, including comments and newlines, while keeping an accurate | |
| 4840 // line count. | |
| 4841 // Maybe handle certain preprocessor constructs: #ifdef, #ifndef, #else, #endif | |
| 4842 void ADLParser::skipws_common(bool do_preproc) { | |
| 4843 char *start = _ptr; | |
| 4844 char *next = _ptr + 1; | |
| 4845 | |
| 4846 if (*_ptr == '\0') { | |
| 4847 // Check for string terminator | |
| 4848 if (_curchar > ' ') return; | |
| 4849 if (_curchar == '\n') { | |
| 4850 if (!do_preproc) return; // let caller handle the newline | |
| 4851 next_line(); | |
| 4852 _ptr = _curline; next = _ptr + 1; | |
| 4853 } | |
| 4854 else if (_curchar == '#' || | |
| 4855 (_curchar == '/' && (*next == '/' || *next == '*'))) { | |
| 4856 parse_err(SYNERR, "unimplemented: comment token in a funny place"); | |
| 4857 } | |
| 4858 } | |
| 4859 while(_curline != NULL) { // Check for end of file | |
| 4860 if (*_ptr == '\n') { // keep proper track of new lines | |
| 4861 if (!do_preproc) break; // let caller handle the newline | |
| 4862 next_line(); | |
| 4863 _ptr = _curline; next = _ptr + 1; | |
| 4864 } | |
| 4865 else if ((*_ptr == '/') && (*next == '/')) // C++ comment | |
| 4866 do { _ptr++; next++; } while(*_ptr != '\n'); // So go to end of line | |
| 4867 else if ((*_ptr == '/') && (*next == '*')) { // C comment | |
| 4868 _ptr++; next++; | |
| 4869 do { | |
| 4870 _ptr++; next++; | |
| 4871 if (*_ptr == '\n') { // keep proper track of new lines | |
| 4872 next_line(); // skip newlines within comments | |
| 4873 if (_curline == NULL) { // check for end of file | |
| 4874 parse_err(SYNERR, "end-of-file detected inside comment\n"); | |
| 4875 break; | |
| 4876 } | |
| 4877 _ptr = _curline; next = _ptr + 1; | |
| 4878 } | |
| 4879 } while(!((*_ptr == '*') && (*next == '/'))); // Go to end of comment | |
| 4880 _ptr = ++next; next++; // increment _ptr past comment end | |
| 4881 } | |
| 4882 else if (do_preproc && *_ptr == '#') { | |
| 4883 // Note that this calls skipws_common(false) recursively! | |
| 4884 bool preproc_handled = handle_preproc_token(); | |
| 4885 if (!preproc_handled) { | |
| 4886 if (preproc_taken()) { | |
| 4887 return; // short circuit | |
| 4888 } | |
| 4889 ++_ptr; // skip the preprocessor character | |
| 4890 } | |
| 4891 next = _ptr+1; | |
| 4892 } else if(*_ptr > ' ' && !(do_preproc && !preproc_taken())) { | |
| 4893 break; | |
| 4894 } | |
| 4895 else if (*_ptr == '"' || *_ptr == '\'') { | |
| 4896 assert(do_preproc, "only skip strings if doing preproc"); | |
| 4897 // skip untaken quoted string | |
| 4898 int qchar = *_ptr; | |
| 4899 while (true) { | |
| 4900 ++_ptr; | |
| 4901 if (*_ptr == qchar) { ++_ptr; break; } | |
| 4902 if (*_ptr == '\\') ++_ptr; | |
| 4903 if (*_ptr == '\n' || *_ptr == '\0') { | |
| 4904 parse_err(SYNERR, "newline in string"); | |
| 4905 break; | |
| 4906 } | |
| 4907 } | |
| 4908 next = _ptr + 1; | |
| 4909 } | |
| 4910 else { ++_ptr; ++next; } | |
| 4911 } | |
| 4912 if( _curline != NULL ) // at end of file _curchar isn't valid | |
| 4913 _curchar = *_ptr; // reset _curchar to maintain invariant | |
| 4914 } | |
| 4915 | |
| 4916 //---------------------------cur_char----------------------------------------- | |
| 4917 char ADLParser::cur_char() { | |
| 4918 return (_curchar); | |
| 4919 } | |
| 4920 | |
| 4921 //---------------------------next_char----------------------------------------- | |
| 4922 void ADLParser::next_char() { | |
|
475
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4923 if (_curchar == '\n') parse_err(WARN, "must call next_line!"); |
| 0 | 4924 _curchar = *++_ptr; |
| 4925 // if ( _curchar == '\n' ) { | |
| 4926 // next_line(); | |
| 4927 // } | |
| 4928 } | |
| 4929 | |
| 4930 //---------------------------next_char_or_line--------------------------------- | |
| 4931 void ADLParser::next_char_or_line() { | |
| 4932 if ( _curchar != '\n' ) { | |
| 4933 _curchar = *++_ptr; | |
| 4934 } else { | |
| 4935 next_line(); | |
| 4936 _ptr = _curline; | |
| 4937 _curchar = *_ptr; // maintain invariant | |
| 4938 } | |
| 4939 } | |
| 4940 | |
| 4941 //---------------------------next_line----------------------------------------- | |
| 4942 void ADLParser::next_line() { | |
|
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4943 _curline = _buf.get_line(); |
|
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|
4944 _curchar = ' '; |
|
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|
4945 } |
|
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|
4946 |
|
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|
4947 //------------------------get_line_string-------------------------------------- |
|
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|
4948 // Prepended location descriptor, for debugging. |
|
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4949 // Must return a malloced string (that can be freed if desired). |
|
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4950 char* ADLParser::get_line_string(int linenum) { |
|
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4951 const char* file = _AD._ADL_file._name; |
|
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4952 int line = linenum ? linenum : this->linenum(); |
|
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4953 char* location = (char *)malloc(strlen(file) + 100); |
|
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4954 sprintf(location, "\n#line %d \"%s\"\n", line, file); |
|
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|
4955 return location; |
| 0 | 4956 } |
| 4957 | |
| 4958 //-------------------------is_literal_constant--------------------------------- | |
| 4959 bool ADLParser::is_literal_constant(const char *param) { | |
| 4960 if (param[0] == 0) return false; // null string | |
| 4961 if (param[0] == '(') return true; // parenthesized expression | |
| 4962 if (param[0] == '0' && (param[1] == 'x' || param[1] == 'X')) { | |
| 4963 // Make sure it's a hex constant. | |
| 4964 int i = 2; | |
| 4965 do { | |
| 4966 if( !ADLParser::is_hex_digit(*(param+i)) ) return false; | |
| 4967 ++i; | |
| 4968 } while( *(param+i) != 0 ); | |
| 4969 return true; | |
| 4970 } | |
| 4971 return false; | |
| 4972 } | |
| 4973 | |
| 4974 //---------------------------is_hex_digit-------------------------------------- | |
| 4975 bool ADLParser::is_hex_digit(char digit) { | |
| 4976 return ((digit >= '0') && (digit <= '9')) | |
| 4977 ||((digit >= 'a') && (digit <= 'f')) | |
| 4978 ||((digit >= 'A') && (digit <= 'F')); | |
| 4979 } | |
| 4980 | |
| 4981 //---------------------------is_int_token-------------------------------------- | |
| 4982 bool ADLParser::is_int_token(const char* token, int& intval) { | |
| 4983 const char* cp = token; | |
| 4984 while (*cp != '\0' && *cp <= ' ') cp++; | |
| 4985 if (*cp == '-') cp++; | |
| 4986 int ndigit = 0; | |
| 4987 while (*cp >= '0' && *cp <= '9') { cp++; ndigit++; } | |
| 4988 while (*cp != '\0' && *cp <= ' ') cp++; | |
| 4989 if (ndigit == 0 || *cp != '\0') { | |
| 4990 return false; | |
| 4991 } | |
| 4992 intval = atoi(token); | |
| 4993 return true; | |
| 4994 } | |
| 4995 | |
|
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4996 static const char* skip_expr_ws(const char* str) { |
|
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4997 const char * cp = str; |
|
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4998 while (cp[0]) { |
|
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4999 if (cp[0] <= ' ') { |
|
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|
5000 ++cp; |
|
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|
5001 } else if (cp[0] == '#') { |
|
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|
5002 ++cp; |
|
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|
5003 while (cp[0] == ' ') ++cp; |
|
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5004 assert(0 == strncmp(cp, "line", 4), "must be a #line directive"); |
|
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5005 const char* eol = strchr(cp, '\n'); |
|
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5006 assert(eol != NULL, "must find end of line"); |
|
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5007 if (eol == NULL) eol = cp + strlen(cp); |
|
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5008 cp = eol; |
|
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|
5009 } else { |
|
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|
5010 break; |
|
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|
5011 } |
|
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|
5012 } |
|
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|
5013 return cp; |
|
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|
5014 } |
|
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|
5015 |
|
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|
5016 //-----------------------equivalent_expressions-------------------------------- |
|
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|
5017 bool ADLParser::equivalent_expressions(const char* str1, const char* str2) { |
|
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|
5018 if (str1 == str2) |
|
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6771309: debugging AD files is difficult without #line directives in generated code
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|
5019 return true; |
|
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|
5020 else if (str1 == NULL || str2 == NULL) |
|
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|
5021 return false; |
|
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|
5022 const char* cp1 = str1; |
|
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|
5023 const char* cp2 = str2; |
|
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|
5024 char in_quote = '\0'; |
|
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|
5025 while (cp1[0] && cp2[0]) { |
|
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|
5026 if (!in_quote) { |
|
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changeset
|
5027 // skip spaces and/or cpp directives |
|
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|
5028 const char* cp1a = skip_expr_ws(cp1); |
|
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6771309: debugging AD files is difficult without #line directives in generated code
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|
5029 const char* cp2a = skip_expr_ws(cp2); |
|
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6771309: debugging AD files is difficult without #line directives in generated code
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|
5030 if (cp1a > cp1 && cp2a > cp2) { |
|
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|
5031 cp1 = cp1a; cp2 = cp2a; |
|
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|
5032 continue; |
|
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|
5033 } |
|
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|
5034 if (cp1a > cp1 || cp2a > cp2) break; // fail |
|
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|
5035 } |
|
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changeset
|
5036 // match one non-space char |
|
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
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changeset
|
5037 if (cp1[0] != cp2[0]) break; // fail |
|
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6771309: debugging AD files is difficult without #line directives in generated code
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changeset
|
5038 char ch = cp1[0]; |
|
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6771309: debugging AD files is difficult without #line directives in generated code
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changeset
|
5039 cp1++; cp2++; |
|
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6771309: debugging AD files is difficult without #line directives in generated code
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|
5040 // watch for quotes |
|
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6771309: debugging AD files is difficult without #line directives in generated code
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|
5041 if (in_quote && ch == '\\') { |
|
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6771309: debugging AD files is difficult without #line directives in generated code
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changeset
|
5042 if (cp1[0] != cp2[0]) break; // fail |
|
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6771309: debugging AD files is difficult without #line directives in generated code
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|
5043 if (!cp1[0]) break; |
|
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|
5044 cp1++; cp2++; |
|
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|
5045 } |
|
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|
5046 if (in_quote && ch == in_quote) { |
|
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changeset
|
5047 in_quote = '\0'; |
|
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|
5048 } else if (!in_quote && (ch == '"' || ch == '\'')) { |
|
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|
5049 in_quote = ch; |
|
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|
5050 } |
|
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|
5051 } |
|
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|
5052 return (!cp1[0] && !cp2[0]); |
|
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|
5053 } |
|
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|
5054 |
|
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|
5055 |
| 0 | 5056 //-------------------------------trim------------------------------------------ |
| 5057 void ADLParser::trim(char* &token) { | |
| 5058 while (*token <= ' ') token++; | |
| 5059 char* end = token + strlen(token); | |
| 5060 while (end > token && *(end-1) <= ' ') --end; | |
| 5061 *end = '\0'; | |
| 5062 } |