Mercurial > hg > truffle
annotate src/share/vm/adlc/output_c.cpp @ 4121:db2e64ca2d5a
7090968: Allow adlc register class to depend on runtime conditions
Summary: allow reg_class definition as a function.
Reviewed-by: kvn, never
| author | roland |
|---|---|
| date | Tue, 22 Nov 2011 09:45:57 +0100 |
| parents | 6729bbc1fcd6 |
| children | da91efe96a93 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 1998, 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 // output_c.cpp - Class CPP file output routines for architecture definition | |
| 26 | |
| 27 #include "adlc.hpp" | |
| 28 | |
| 29 // Utilities to characterize effect statements | |
| 30 static bool is_def(int usedef) { | |
| 31 switch(usedef) { | |
| 32 case Component::DEF: | |
| 33 case Component::USE_DEF: return true; break; | |
| 34 } | |
| 35 return false; | |
| 36 } | |
| 37 | |
| 38 static bool is_use(int usedef) { | |
| 39 switch(usedef) { | |
| 40 case Component::USE: | |
| 41 case Component::USE_DEF: | |
| 42 case Component::USE_KILL: return true; break; | |
| 43 } | |
| 44 return false; | |
| 45 } | |
| 46 | |
| 47 static bool is_kill(int usedef) { | |
| 48 switch(usedef) { | |
| 49 case Component::KILL: | |
| 50 case Component::USE_KILL: return true; break; | |
| 51 } | |
| 52 return false; | |
| 53 } | |
| 54 | |
| 55 // Define an array containing the machine register names, strings. | |
| 56 static void defineRegNames(FILE *fp, RegisterForm *registers) { | |
| 57 if (registers) { | |
| 58 fprintf(fp,"\n"); | |
| 59 fprintf(fp,"// An array of character pointers to machine register names.\n"); | |
| 60 fprintf(fp,"const char *Matcher::regName[REG_COUNT] = {\n"); | |
| 61 | |
| 62 // Output the register name for each register in the allocation classes | |
| 63 RegDef *reg_def = NULL; | |
| 64 RegDef *next = NULL; | |
| 65 registers->reset_RegDefs(); | |
| 66 for( reg_def = registers->iter_RegDefs(); reg_def != NULL; reg_def = next ) { | |
| 67 next = registers->iter_RegDefs(); | |
| 68 const char *comma = (next != NULL) ? "," : " // no trailing comma"; | |
| 69 fprintf(fp," \"%s\"%s\n", | |
| 70 reg_def->_regname, comma ); | |
| 71 } | |
| 72 | |
| 73 // Finish defining enumeration | |
| 74 fprintf(fp,"};\n"); | |
| 75 | |
| 76 fprintf(fp,"\n"); | |
| 77 fprintf(fp,"// An array of character pointers to machine register names.\n"); | |
| 78 fprintf(fp,"const VMReg OptoReg::opto2vm[REG_COUNT] = {\n"); | |
| 79 reg_def = NULL; | |
| 80 next = NULL; | |
| 81 registers->reset_RegDefs(); | |
| 82 for( reg_def = registers->iter_RegDefs(); reg_def != NULL; reg_def = next ) { | |
| 83 next = registers->iter_RegDefs(); | |
| 84 const char *comma = (next != NULL) ? "," : " // no trailing comma"; | |
| 85 fprintf(fp,"\t%s%s\n", reg_def->_concrete, comma ); | |
| 86 } | |
| 87 // Finish defining array | |
| 88 fprintf(fp,"\t};\n"); | |
| 89 fprintf(fp,"\n"); | |
| 90 | |
| 91 fprintf(fp," OptoReg::Name OptoReg::vm2opto[ConcreteRegisterImpl::number_of_registers];\n"); | |
| 92 | |
| 93 } | |
| 94 } | |
| 95 | |
| 96 // Define an array containing the machine register encoding values | |
| 97 static void defineRegEncodes(FILE *fp, RegisterForm *registers) { | |
| 98 if (registers) { | |
| 99 fprintf(fp,"\n"); | |
| 100 fprintf(fp,"// An array of the machine register encode values\n"); | |
| 101 fprintf(fp,"const unsigned char Matcher::_regEncode[REG_COUNT] = {\n"); | |
| 102 | |
| 103 // Output the register encoding for each register in the allocation classes | |
| 104 RegDef *reg_def = NULL; | |
| 105 RegDef *next = NULL; | |
| 106 registers->reset_RegDefs(); | |
| 107 for( reg_def = registers->iter_RegDefs(); reg_def != NULL; reg_def = next ) { | |
| 108 next = registers->iter_RegDefs(); | |
| 109 const char* register_encode = reg_def->register_encode(); | |
| 110 const char *comma = (next != NULL) ? "," : " // no trailing comma"; | |
| 111 int encval; | |
| 112 if (!ADLParser::is_int_token(register_encode, encval)) { | |
| 113 fprintf(fp," %s%s // %s\n", | |
| 114 register_encode, comma, reg_def->_regname ); | |
| 115 } else { | |
| 116 // Output known constants in hex char format (backward compatibility). | |
| 117 assert(encval < 256, "Exceeded supported width for register encoding"); | |
| 118 fprintf(fp," (unsigned char)'\\x%X'%s // %s\n", | |
| 119 encval, comma, reg_def->_regname ); | |
| 120 } | |
| 121 } | |
| 122 // Finish defining enumeration | |
| 123 fprintf(fp,"};\n"); | |
| 124 | |
| 125 } // Done defining array | |
| 126 } | |
| 127 | |
| 128 // Output an enumeration of register class names | |
| 129 static void defineRegClassEnum(FILE *fp, RegisterForm *registers) { | |
| 130 if (registers) { | |
| 131 // Output an enumeration of register class names | |
| 132 fprintf(fp,"\n"); | |
| 133 fprintf(fp,"// Enumeration of register class names\n"); | |
| 134 fprintf(fp, "enum machRegisterClass {\n"); | |
| 135 registers->_rclasses.reset(); | |
| 136 for( const char *class_name = NULL; | |
| 137 (class_name = registers->_rclasses.iter()) != NULL; ) { | |
| 138 fprintf(fp," %s,\n", toUpper( class_name )); | |
| 139 } | |
| 140 // Finish defining enumeration | |
| 141 fprintf(fp, " _last_Mach_Reg_Class\n"); | |
| 142 fprintf(fp, "};\n"); | |
| 143 } | |
| 144 } | |
| 145 | |
| 146 // Declare an enumeration of user-defined register classes | |
| 147 // and a list of register masks, one for each class. | |
| 148 void ArchDesc::declare_register_masks(FILE *fp_hpp) { | |
| 149 const char *rc_name; | |
| 150 | |
| 151 if( _register ) { | |
| 152 // Build enumeration of user-defined register classes. | |
| 153 defineRegClassEnum(fp_hpp, _register); | |
| 154 | |
| 155 // Generate a list of register masks, one for each class. | |
| 156 fprintf(fp_hpp,"\n"); | |
| 157 fprintf(fp_hpp,"// Register masks, one for each register class.\n"); | |
| 158 _register->_rclasses.reset(); | |
| 159 for( rc_name = NULL; | |
| 160 (rc_name = _register->_rclasses.iter()) != NULL; ) { | |
| 161 const char *prefix = ""; | |
| 162 RegClass *reg_class = _register->getRegClass(rc_name); | |
| 163 assert( reg_class, "Using an undefined register class"); | |
| 164 | |
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165 if (reg_class->_user_defined == NULL) { |
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166 fprintf(fp_hpp, "extern const RegMask _%s%s_mask;\n", prefix, toUpper( rc_name ) ); |
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167 fprintf(fp_hpp, "inline const RegMask &%s%s_mask() { return _%s%s_mask; }\n", prefix, toUpper( rc_name ), prefix, toUpper( rc_name )); |
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168 } else { |
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169 fprintf(fp_hpp, "inline const RegMask &%s%s_mask() { %s }\n", prefix, toUpper( rc_name ), reg_class->_user_defined); |
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170 } |
| 0 | 171 |
| 172 if( reg_class->_stack_or_reg ) { | |
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173 assert(reg_class->_user_defined == NULL, "no user defined reg class here"); |
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174 fprintf(fp_hpp, "extern const RegMask _%sSTACK_OR_%s_mask;\n", prefix, toUpper( rc_name ) ); |
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175 fprintf(fp_hpp, "inline const RegMask &%sSTACK_OR_%s_mask() { return _%sSTACK_OR_%s_mask; }\n", prefix, toUpper( rc_name ), prefix, toUpper( rc_name ) ); |
| 0 | 176 } |
| 177 } | |
| 178 } | |
| 179 } | |
| 180 | |
| 181 // Generate an enumeration of user-defined register classes | |
| 182 // and a list of register masks, one for each class. | |
| 183 void ArchDesc::build_register_masks(FILE *fp_cpp) { | |
| 184 const char *rc_name; | |
| 185 | |
| 186 if( _register ) { | |
| 187 // Generate a list of register masks, one for each class. | |
| 188 fprintf(fp_cpp,"\n"); | |
| 189 fprintf(fp_cpp,"// Register masks, one for each register class.\n"); | |
| 190 _register->_rclasses.reset(); | |
| 191 for( rc_name = NULL; | |
| 192 (rc_name = _register->_rclasses.iter()) != NULL; ) { | |
| 193 const char *prefix = ""; | |
| 194 RegClass *reg_class = _register->getRegClass(rc_name); | |
| 195 assert( reg_class, "Using an undefined register class"); | |
| 196 | |
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197 if (reg_class->_user_defined != NULL) continue; |
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198 |
| 0 | 199 int len = RegisterForm::RegMask_Size(); |
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200 fprintf(fp_cpp, "const RegMask _%s%s_mask(", prefix, toUpper( rc_name ) ); |
| 0 | 201 { int i; |
| 202 for( i = 0; i < len-1; i++ ) | |
| 203 fprintf(fp_cpp," 0x%x,",reg_class->regs_in_word(i,false)); | |
| 204 fprintf(fp_cpp," 0x%x );\n",reg_class->regs_in_word(i,false)); | |
| 205 } | |
| 206 | |
| 207 if( reg_class->_stack_or_reg ) { | |
| 208 int i; | |
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209 fprintf(fp_cpp, "const RegMask _%sSTACK_OR_%s_mask(", prefix, toUpper( rc_name ) ); |
| 0 | 210 for( i = 0; i < len-1; i++ ) |
| 211 fprintf(fp_cpp," 0x%x,",reg_class->regs_in_word(i,true)); | |
| 212 fprintf(fp_cpp," 0x%x );\n",reg_class->regs_in_word(i,true)); | |
| 213 } | |
| 214 } | |
| 215 } | |
| 216 } | |
| 217 | |
| 218 // Compute an index for an array in the pipeline_reads_NNN arrays | |
| 219 static int pipeline_reads_initializer(FILE *fp_cpp, NameList &pipeline_reads, PipeClassForm *pipeclass) | |
| 220 { | |
| 221 int templen = 1; | |
| 222 int paramcount = 0; | |
| 223 const char *paramname; | |
| 224 | |
| 225 if (pipeclass->_parameters.count() == 0) | |
| 226 return -1; | |
| 227 | |
| 228 pipeclass->_parameters.reset(); | |
| 229 paramname = pipeclass->_parameters.iter(); | |
| 230 const PipeClassOperandForm *pipeopnd = | |
| 231 (const PipeClassOperandForm *)pipeclass->_localUsage[paramname]; | |
| 232 if (pipeopnd && !pipeopnd->isWrite() && strcmp(pipeopnd->_stage, "Universal")) | |
| 233 pipeclass->_parameters.reset(); | |
| 234 | |
| 235 while ( (paramname = pipeclass->_parameters.iter()) != NULL ) { | |
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236 const PipeClassOperandForm *tmppipeopnd = |
| 0 | 237 (const PipeClassOperandForm *)pipeclass->_localUsage[paramname]; |
| 238 | |
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239 if (tmppipeopnd) |
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240 templen += 10 + (int)strlen(tmppipeopnd->_stage); |
| 0 | 241 else |
| 242 templen += 19; | |
| 243 | |
| 244 paramcount++; | |
| 245 } | |
| 246 | |
| 247 // See if the count is zero | |
| 248 if (paramcount == 0) { | |
| 249 return -1; | |
| 250 } | |
| 251 | |
| 252 char *operand_stages = new char [templen]; | |
| 253 operand_stages[0] = 0; | |
| 254 int i = 0; | |
| 255 templen = 0; | |
| 256 | |
| 257 pipeclass->_parameters.reset(); | |
| 258 paramname = pipeclass->_parameters.iter(); | |
| 259 pipeopnd = (const PipeClassOperandForm *)pipeclass->_localUsage[paramname]; | |
| 260 if (pipeopnd && !pipeopnd->isWrite() && strcmp(pipeopnd->_stage, "Universal")) | |
| 261 pipeclass->_parameters.reset(); | |
| 262 | |
| 263 while ( (paramname = pipeclass->_parameters.iter()) != NULL ) { | |
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264 const PipeClassOperandForm *tmppipeopnd = |
| 0 | 265 (const PipeClassOperandForm *)pipeclass->_localUsage[paramname]; |
| 266 templen += sprintf(&operand_stages[templen], " stage_%s%c\n", | |
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267 tmppipeopnd ? tmppipeopnd->_stage : "undefined", |
| 0 | 268 (++i < paramcount ? ',' : ' ') ); |
| 269 } | |
| 270 | |
| 271 // See if the same string is in the table | |
| 272 int ndx = pipeline_reads.index(operand_stages); | |
| 273 | |
| 274 // No, add it to the table | |
| 275 if (ndx < 0) { | |
| 276 pipeline_reads.addName(operand_stages); | |
| 277 ndx = pipeline_reads.index(operand_stages); | |
| 278 | |
| 279 fprintf(fp_cpp, "static const enum machPipelineStages pipeline_reads_%03d[%d] = {\n%s};\n\n", | |
| 280 ndx+1, paramcount, operand_stages); | |
| 281 } | |
| 282 else | |
| 283 delete [] operand_stages; | |
| 284 | |
| 285 return (ndx); | |
| 286 } | |
| 287 | |
| 288 // Compute an index for an array in the pipeline_res_stages_NNN arrays | |
| 289 static int pipeline_res_stages_initializer( | |
| 290 FILE *fp_cpp, | |
| 291 PipelineForm *pipeline, | |
| 292 NameList &pipeline_res_stages, | |
| 293 PipeClassForm *pipeclass) | |
| 294 { | |
| 295 const PipeClassResourceForm *piperesource; | |
| 296 int * res_stages = new int [pipeline->_rescount]; | |
| 297 int i; | |
| 298 | |
| 299 for (i = 0; i < pipeline->_rescount; i++) | |
| 300 res_stages[i] = 0; | |
| 301 | |
| 302 for (pipeclass->_resUsage.reset(); | |
| 303 (piperesource = (const PipeClassResourceForm *)pipeclass->_resUsage.iter()) != NULL; ) { | |
| 304 int used_mask = pipeline->_resdict[piperesource->_resource]->is_resource()->mask(); | |
| 305 for (i = 0; i < pipeline->_rescount; i++) | |
| 306 if ((1 << i) & used_mask) { | |
| 307 int stage = pipeline->_stages.index(piperesource->_stage); | |
| 308 if (res_stages[i] < stage+1) | |
| 309 res_stages[i] = stage+1; | |
| 310 } | |
| 311 } | |
| 312 | |
| 313 // Compute the length needed for the resource list | |
| 314 int commentlen = 0; | |
| 315 int max_stage = 0; | |
| 316 for (i = 0; i < pipeline->_rescount; i++) { | |
| 317 if (res_stages[i] == 0) { | |
| 318 if (max_stage < 9) | |
| 319 max_stage = 9; | |
| 320 } | |
| 321 else { | |
| 322 int stagelen = (int)strlen(pipeline->_stages.name(res_stages[i]-1)); | |
| 323 if (max_stage < stagelen) | |
| 324 max_stage = stagelen; | |
| 325 } | |
| 326 | |
| 327 commentlen += (int)strlen(pipeline->_reslist.name(i)); | |
| 328 } | |
| 329 | |
| 330 int templen = 1 + commentlen + pipeline->_rescount * (max_stage + 14); | |
| 331 | |
| 332 // Allocate space for the resource list | |
| 333 char * resource_stages = new char [templen]; | |
| 334 | |
| 335 templen = 0; | |
| 336 for (i = 0; i < pipeline->_rescount; i++) { | |
| 337 const char * const resname = | |
| 338 res_stages[i] == 0 ? "undefined" : pipeline->_stages.name(res_stages[i]-1); | |
| 339 | |
| 340 templen += sprintf(&resource_stages[templen], " stage_%s%-*s // %s\n", | |
| 341 resname, max_stage - (int)strlen(resname) + 1, | |
| 342 (i < pipeline->_rescount-1) ? "," : "", | |
| 343 pipeline->_reslist.name(i)); | |
| 344 } | |
| 345 | |
| 346 // See if the same string is in the table | |
| 347 int ndx = pipeline_res_stages.index(resource_stages); | |
| 348 | |
| 349 // No, add it to the table | |
| 350 if (ndx < 0) { | |
| 351 pipeline_res_stages.addName(resource_stages); | |
| 352 ndx = pipeline_res_stages.index(resource_stages); | |
| 353 | |
| 354 fprintf(fp_cpp, "static const enum machPipelineStages pipeline_res_stages_%03d[%d] = {\n%s};\n\n", | |
| 355 ndx+1, pipeline->_rescount, resource_stages); | |
| 356 } | |
| 357 else | |
| 358 delete [] resource_stages; | |
| 359 | |
| 360 delete [] res_stages; | |
| 361 | |
| 362 return (ndx); | |
| 363 } | |
| 364 | |
| 365 // Compute an index for an array in the pipeline_res_cycles_NNN arrays | |
| 366 static int pipeline_res_cycles_initializer( | |
| 367 FILE *fp_cpp, | |
| 368 PipelineForm *pipeline, | |
| 369 NameList &pipeline_res_cycles, | |
| 370 PipeClassForm *pipeclass) | |
| 371 { | |
| 372 const PipeClassResourceForm *piperesource; | |
| 373 int * res_cycles = new int [pipeline->_rescount]; | |
| 374 int i; | |
| 375 | |
| 376 for (i = 0; i < pipeline->_rescount; i++) | |
| 377 res_cycles[i] = 0; | |
| 378 | |
| 379 for (pipeclass->_resUsage.reset(); | |
| 380 (piperesource = (const PipeClassResourceForm *)pipeclass->_resUsage.iter()) != NULL; ) { | |
| 381 int used_mask = pipeline->_resdict[piperesource->_resource]->is_resource()->mask(); | |
| 382 for (i = 0; i < pipeline->_rescount; i++) | |
| 383 if ((1 << i) & used_mask) { | |
| 384 int cycles = piperesource->_cycles; | |
| 385 if (res_cycles[i] < cycles) | |
| 386 res_cycles[i] = cycles; | |
| 387 } | |
| 388 } | |
| 389 | |
| 390 // Pre-compute the string length | |
| 391 int templen; | |
| 392 int cyclelen = 0, commentlen = 0; | |
| 393 int max_cycles = 0; | |
| 394 char temp[32]; | |
| 395 | |
| 396 for (i = 0; i < pipeline->_rescount; i++) { | |
| 397 if (max_cycles < res_cycles[i]) | |
| 398 max_cycles = res_cycles[i]; | |
| 399 templen = sprintf(temp, "%d", res_cycles[i]); | |
| 400 if (cyclelen < templen) | |
| 401 cyclelen = templen; | |
| 402 commentlen += (int)strlen(pipeline->_reslist.name(i)); | |
| 403 } | |
| 404 | |
| 405 templen = 1 + commentlen + (cyclelen + 8) * pipeline->_rescount; | |
| 406 | |
| 407 // Allocate space for the resource list | |
| 408 char * resource_cycles = new char [templen]; | |
| 409 | |
| 410 templen = 0; | |
| 411 | |
| 412 for (i = 0; i < pipeline->_rescount; i++) { | |
| 413 templen += sprintf(&resource_cycles[templen], " %*d%c // %s\n", | |
| 414 cyclelen, res_cycles[i], (i < pipeline->_rescount-1) ? ',' : ' ', pipeline->_reslist.name(i)); | |
| 415 } | |
| 416 | |
| 417 // See if the same string is in the table | |
| 418 int ndx = pipeline_res_cycles.index(resource_cycles); | |
| 419 | |
| 420 // No, add it to the table | |
| 421 if (ndx < 0) { | |
| 422 pipeline_res_cycles.addName(resource_cycles); | |
| 423 ndx = pipeline_res_cycles.index(resource_cycles); | |
| 424 | |
| 425 fprintf(fp_cpp, "static const uint pipeline_res_cycles_%03d[%d] = {\n%s};\n\n", | |
| 426 ndx+1, pipeline->_rescount, resource_cycles); | |
| 427 } | |
| 428 else | |
| 429 delete [] resource_cycles; | |
| 430 | |
| 431 delete [] res_cycles; | |
| 432 | |
| 433 return (ndx); | |
| 434 } | |
| 435 | |
| 436 //typedef unsigned long long uint64_t; | |
| 437 | |
| 438 // Compute an index for an array in the pipeline_res_mask_NNN arrays | |
| 439 static int pipeline_res_mask_initializer( | |
| 440 FILE *fp_cpp, | |
| 441 PipelineForm *pipeline, | |
| 442 NameList &pipeline_res_mask, | |
| 443 NameList &pipeline_res_args, | |
| 444 PipeClassForm *pipeclass) | |
| 445 { | |
| 446 const PipeClassResourceForm *piperesource; | |
| 447 const uint rescount = pipeline->_rescount; | |
| 448 const uint maxcycleused = pipeline->_maxcycleused; | |
| 449 const uint cyclemasksize = (maxcycleused + 31) >> 5; | |
| 450 | |
| 451 int i, j; | |
| 452 int element_count = 0; | |
| 453 uint *res_mask = new uint [cyclemasksize]; | |
| 454 uint resources_used = 0; | |
| 455 uint resources_used_exclusively = 0; | |
| 456 | |
| 457 for (pipeclass->_resUsage.reset(); | |
| 458 (piperesource = (const PipeClassResourceForm *)pipeclass->_resUsage.iter()) != NULL; ) | |
| 459 element_count++; | |
| 460 | |
| 461 // Pre-compute the string length | |
| 462 int templen; | |
| 463 int commentlen = 0; | |
| 464 int max_cycles = 0; | |
| 465 | |
| 466 int cyclelen = ((maxcycleused + 3) >> 2); | |
| 467 int masklen = (rescount + 3) >> 2; | |
| 468 | |
| 469 int cycledigit = 0; | |
| 470 for (i = maxcycleused; i > 0; i /= 10) | |
| 471 cycledigit++; | |
| 472 | |
| 473 int maskdigit = 0; | |
| 474 for (i = rescount; i > 0; i /= 10) | |
| 475 maskdigit++; | |
| 476 | |
| 477 static const char * pipeline_use_cycle_mask = "Pipeline_Use_Cycle_Mask"; | |
| 478 static const char * pipeline_use_element = "Pipeline_Use_Element"; | |
| 479 | |
| 480 templen = 1 + | |
| 481 (int)(strlen(pipeline_use_cycle_mask) + (int)strlen(pipeline_use_element) + | |
| 482 (cyclemasksize * 12) + masklen + (cycledigit * 2) + 30) * element_count; | |
| 483 | |
| 484 // Allocate space for the resource list | |
| 485 char * resource_mask = new char [templen]; | |
| 486 char * last_comma = NULL; | |
| 487 | |
| 488 templen = 0; | |
| 489 | |
| 490 for (pipeclass->_resUsage.reset(); | |
| 491 (piperesource = (const PipeClassResourceForm *)pipeclass->_resUsage.iter()) != NULL; ) { | |
| 492 int used_mask = pipeline->_resdict[piperesource->_resource]->is_resource()->mask(); | |
| 493 | |
| 494 if (!used_mask) | |
| 495 fprintf(stderr, "*** used_mask is 0 ***\n"); | |
| 496 | |
| 497 resources_used |= used_mask; | |
| 498 | |
| 499 uint lb, ub; | |
| 500 | |
| 501 for (lb = 0; (used_mask & (1 << lb)) == 0; lb++); | |
| 502 for (ub = 31; (used_mask & (1 << ub)) == 0; ub--); | |
| 503 | |
| 504 if (lb == ub) | |
| 505 resources_used_exclusively |= used_mask; | |
| 506 | |
| 507 int formatlen = | |
| 508 sprintf(&resource_mask[templen], " %s(0x%0*x, %*d, %*d, %s %s(", | |
| 509 pipeline_use_element, | |
| 510 masklen, used_mask, | |
| 511 cycledigit, lb, cycledigit, ub, | |
| 512 ((used_mask & (used_mask-1)) != 0) ? "true, " : "false,", | |
| 513 pipeline_use_cycle_mask); | |
| 514 | |
| 515 templen += formatlen; | |
| 516 | |
| 517 memset(res_mask, 0, cyclemasksize * sizeof(uint)); | |
| 518 | |
| 519 int cycles = piperesource->_cycles; | |
| 520 uint stage = pipeline->_stages.index(piperesource->_stage); | |
| 521 uint upper_limit = stage+cycles-1; | |
| 522 uint lower_limit = stage-1; | |
| 523 uint upper_idx = upper_limit >> 5; | |
| 524 uint lower_idx = lower_limit >> 5; | |
| 525 uint upper_position = upper_limit & 0x1f; | |
| 526 uint lower_position = lower_limit & 0x1f; | |
| 527 | |
| 528 uint mask = (((uint)1) << upper_position) - 1; | |
| 529 | |
| 530 while ( upper_idx > lower_idx ) { | |
| 531 res_mask[upper_idx--] |= mask; | |
| 532 mask = (uint)-1; | |
| 533 } | |
| 534 | |
| 535 mask -= (((uint)1) << lower_position) - 1; | |
| 536 res_mask[upper_idx] |= mask; | |
| 537 | |
| 538 for (j = cyclemasksize-1; j >= 0; j--) { | |
| 539 formatlen = | |
| 540 sprintf(&resource_mask[templen], "0x%08x%s", res_mask[j], j > 0 ? ", " : ""); | |
| 541 templen += formatlen; | |
| 542 } | |
| 543 | |
| 544 resource_mask[templen++] = ')'; | |
| 545 resource_mask[templen++] = ')'; | |
| 546 last_comma = &resource_mask[templen]; | |
| 547 resource_mask[templen++] = ','; | |
| 548 resource_mask[templen++] = '\n'; | |
| 549 } | |
| 550 | |
| 551 resource_mask[templen] = 0; | |
| 552 if (last_comma) | |
| 553 last_comma[0] = ' '; | |
| 554 | |
| 555 // See if the same string is in the table | |
| 556 int ndx = pipeline_res_mask.index(resource_mask); | |
| 557 | |
| 558 // No, add it to the table | |
| 559 if (ndx < 0) { | |
| 560 pipeline_res_mask.addName(resource_mask); | |
| 561 ndx = pipeline_res_mask.index(resource_mask); | |
| 562 | |
| 563 if (strlen(resource_mask) > 0) | |
| 564 fprintf(fp_cpp, "static const Pipeline_Use_Element pipeline_res_mask_%03d[%d] = {\n%s};\n\n", | |
| 565 ndx+1, element_count, resource_mask); | |
| 566 | |
| 567 char * args = new char [9 + 2*masklen + maskdigit]; | |
| 568 | |
| 569 sprintf(args, "0x%0*x, 0x%0*x, %*d", | |
| 570 masklen, resources_used, | |
| 571 masklen, resources_used_exclusively, | |
| 572 maskdigit, element_count); | |
| 573 | |
| 574 pipeline_res_args.addName(args); | |
| 575 } | |
| 576 else | |
| 577 delete [] resource_mask; | |
| 578 | |
| 579 delete [] res_mask; | |
| 580 //delete [] res_masks; | |
| 581 | |
| 582 return (ndx); | |
| 583 } | |
| 584 | |
| 585 void ArchDesc::build_pipe_classes(FILE *fp_cpp) { | |
| 586 const char *classname; | |
| 587 const char *resourcename; | |
| 588 int resourcenamelen = 0; | |
| 589 NameList pipeline_reads; | |
| 590 NameList pipeline_res_stages; | |
| 591 NameList pipeline_res_cycles; | |
| 592 NameList pipeline_res_masks; | |
| 593 NameList pipeline_res_args; | |
| 594 const int default_latency = 1; | |
| 595 const int non_operand_latency = 0; | |
| 596 const int node_latency = 0; | |
| 597 | |
| 598 if (!_pipeline) { | |
| 599 fprintf(fp_cpp, "uint Node::latency(uint i) const {\n"); | |
| 600 fprintf(fp_cpp, " // assert(false, \"pipeline functionality is not defined\");\n"); | |
| 601 fprintf(fp_cpp, " return %d;\n", non_operand_latency); | |
| 602 fprintf(fp_cpp, "}\n"); | |
| 603 return; | |
| 604 } | |
| 605 | |
| 606 fprintf(fp_cpp, "\n"); | |
| 607 fprintf(fp_cpp, "//------------------Pipeline Methods-----------------------------------------\n"); | |
| 608 fprintf(fp_cpp, "#ifndef PRODUCT\n"); | |
| 609 fprintf(fp_cpp, "const char * Pipeline::stageName(uint s) {\n"); | |
| 610 fprintf(fp_cpp, " static const char * const _stage_names[] = {\n"); | |
| 611 fprintf(fp_cpp, " \"undefined\""); | |
| 612 | |
| 613 for (int s = 0; s < _pipeline->_stagecnt; s++) | |
| 614 fprintf(fp_cpp, ", \"%s\"", _pipeline->_stages.name(s)); | |
| 615 | |
| 616 fprintf(fp_cpp, "\n };\n\n"); | |
| 617 fprintf(fp_cpp, " return (s <= %d ? _stage_names[s] : \"???\");\n", | |
| 618 _pipeline->_stagecnt); | |
| 619 fprintf(fp_cpp, "}\n"); | |
| 620 fprintf(fp_cpp, "#endif\n\n"); | |
| 621 | |
| 622 fprintf(fp_cpp, "uint Pipeline::functional_unit_latency(uint start, const Pipeline *pred) const {\n"); | |
| 623 fprintf(fp_cpp, " // See if the functional units overlap\n"); | |
| 624 #if 0 | |
| 625 fprintf(fp_cpp, "\n#ifndef PRODUCT\n"); | |
| 626 fprintf(fp_cpp, " if (TraceOptoOutput) {\n"); | |
| 627 fprintf(fp_cpp, " tty->print(\"# functional_unit_latency: start == %%d, this->exclusively == 0x%%03x, pred->exclusively == 0x%%03x\\n\", start, resourcesUsedExclusively(), pred->resourcesUsedExclusively());\n"); | |
| 628 fprintf(fp_cpp, " }\n"); | |
| 629 fprintf(fp_cpp, "#endif\n\n"); | |
| 630 #endif | |
| 631 fprintf(fp_cpp, " uint mask = resourcesUsedExclusively() & pred->resourcesUsedExclusively();\n"); | |
| 632 fprintf(fp_cpp, " if (mask == 0)\n return (start);\n\n"); | |
| 633 #if 0 | |
| 634 fprintf(fp_cpp, "\n#ifndef PRODUCT\n"); | |
| 635 fprintf(fp_cpp, " if (TraceOptoOutput) {\n"); | |
| 636 fprintf(fp_cpp, " tty->print(\"# functional_unit_latency: mask == 0x%%x\\n\", mask);\n"); | |
| 637 fprintf(fp_cpp, " }\n"); | |
| 638 fprintf(fp_cpp, "#endif\n\n"); | |
| 639 #endif | |
| 640 fprintf(fp_cpp, " for (uint i = 0; i < pred->resourceUseCount(); i++) {\n"); | |
| 641 fprintf(fp_cpp, " const Pipeline_Use_Element *predUse = pred->resourceUseElement(i);\n"); | |
| 642 fprintf(fp_cpp, " if (predUse->multiple())\n"); | |
| 643 fprintf(fp_cpp, " continue;\n\n"); | |
| 644 fprintf(fp_cpp, " for (uint j = 0; j < resourceUseCount(); j++) {\n"); | |
| 645 fprintf(fp_cpp, " const Pipeline_Use_Element *currUse = resourceUseElement(j);\n"); | |
| 646 fprintf(fp_cpp, " if (currUse->multiple())\n"); | |
| 647 fprintf(fp_cpp, " continue;\n\n"); | |
| 648 fprintf(fp_cpp, " if (predUse->used() & currUse->used()) {\n"); | |
| 649 fprintf(fp_cpp, " Pipeline_Use_Cycle_Mask x = predUse->mask();\n"); | |
| 650 fprintf(fp_cpp, " Pipeline_Use_Cycle_Mask y = currUse->mask();\n\n"); | |
| 651 fprintf(fp_cpp, " for ( y <<= start; x.overlaps(y); start++ )\n"); | |
| 652 fprintf(fp_cpp, " y <<= 1;\n"); | |
| 653 fprintf(fp_cpp, " }\n"); | |
| 654 fprintf(fp_cpp, " }\n"); | |
| 655 fprintf(fp_cpp, " }\n\n"); | |
| 656 fprintf(fp_cpp, " // There is the potential for overlap\n"); | |
| 657 fprintf(fp_cpp, " return (start);\n"); | |
| 658 fprintf(fp_cpp, "}\n\n"); | |
| 659 fprintf(fp_cpp, "// The following two routines assume that the root Pipeline_Use entity\n"); | |
| 660 fprintf(fp_cpp, "// consists of exactly 1 element for each functional unit\n"); | |
| 661 fprintf(fp_cpp, "// start is relative to the current cycle; used for latency-based info\n"); | |
| 662 fprintf(fp_cpp, "uint Pipeline_Use::full_latency(uint delay, const Pipeline_Use &pred) const {\n"); | |
| 663 fprintf(fp_cpp, " for (uint i = 0; i < pred._count; i++) {\n"); | |
| 664 fprintf(fp_cpp, " const Pipeline_Use_Element *predUse = pred.element(i);\n"); | |
| 665 fprintf(fp_cpp, " if (predUse->_multiple) {\n"); | |
| 666 fprintf(fp_cpp, " uint min_delay = %d;\n", | |
| 667 _pipeline->_maxcycleused+1); | |
| 668 fprintf(fp_cpp, " // Multiple possible functional units, choose first unused one\n"); | |
| 669 fprintf(fp_cpp, " for (uint j = predUse->_lb; j <= predUse->_ub; j++) {\n"); | |
| 670 fprintf(fp_cpp, " const Pipeline_Use_Element *currUse = element(j);\n"); | |
| 671 fprintf(fp_cpp, " uint curr_delay = delay;\n"); | |
| 672 fprintf(fp_cpp, " if (predUse->_used & currUse->_used) {\n"); | |
| 673 fprintf(fp_cpp, " Pipeline_Use_Cycle_Mask x = predUse->_mask;\n"); | |
| 674 fprintf(fp_cpp, " Pipeline_Use_Cycle_Mask y = currUse->_mask;\n\n"); | |
| 675 fprintf(fp_cpp, " for ( y <<= curr_delay; x.overlaps(y); curr_delay++ )\n"); | |
| 676 fprintf(fp_cpp, " y <<= 1;\n"); | |
| 677 fprintf(fp_cpp, " }\n"); | |
| 678 fprintf(fp_cpp, " if (min_delay > curr_delay)\n min_delay = curr_delay;\n"); | |
| 679 fprintf(fp_cpp, " }\n"); | |
| 680 fprintf(fp_cpp, " if (delay < min_delay)\n delay = min_delay;\n"); | |
| 681 fprintf(fp_cpp, " }\n"); | |
| 682 fprintf(fp_cpp, " else {\n"); | |
| 683 fprintf(fp_cpp, " for (uint j = predUse->_lb; j <= predUse->_ub; j++) {\n"); | |
| 684 fprintf(fp_cpp, " const Pipeline_Use_Element *currUse = element(j);\n"); | |
| 685 fprintf(fp_cpp, " if (predUse->_used & currUse->_used) {\n"); | |
| 686 fprintf(fp_cpp, " Pipeline_Use_Cycle_Mask x = predUse->_mask;\n"); | |
| 687 fprintf(fp_cpp, " Pipeline_Use_Cycle_Mask y = currUse->_mask;\n\n"); | |
| 688 fprintf(fp_cpp, " for ( y <<= delay; x.overlaps(y); delay++ )\n"); | |
| 689 fprintf(fp_cpp, " y <<= 1;\n"); | |
| 690 fprintf(fp_cpp, " }\n"); | |
| 691 fprintf(fp_cpp, " }\n"); | |
| 692 fprintf(fp_cpp, " }\n"); | |
| 693 fprintf(fp_cpp, " }\n\n"); | |
| 694 fprintf(fp_cpp, " return (delay);\n"); | |
| 695 fprintf(fp_cpp, "}\n\n"); | |
| 696 fprintf(fp_cpp, "void Pipeline_Use::add_usage(const Pipeline_Use &pred) {\n"); | |
| 697 fprintf(fp_cpp, " for (uint i = 0; i < pred._count; i++) {\n"); | |
| 698 fprintf(fp_cpp, " const Pipeline_Use_Element *predUse = pred.element(i);\n"); | |
| 699 fprintf(fp_cpp, " if (predUse->_multiple) {\n"); | |
| 700 fprintf(fp_cpp, " // Multiple possible functional units, choose first unused one\n"); | |
| 701 fprintf(fp_cpp, " for (uint j = predUse->_lb; j <= predUse->_ub; j++) {\n"); | |
| 702 fprintf(fp_cpp, " Pipeline_Use_Element *currUse = element(j);\n"); | |
| 703 fprintf(fp_cpp, " if ( !predUse->_mask.overlaps(currUse->_mask) ) {\n"); | |
| 704 fprintf(fp_cpp, " currUse->_used |= (1 << j);\n"); | |
| 705 fprintf(fp_cpp, " _resources_used |= (1 << j);\n"); | |
| 706 fprintf(fp_cpp, " currUse->_mask.Or(predUse->_mask);\n"); | |
| 707 fprintf(fp_cpp, " break;\n"); | |
| 708 fprintf(fp_cpp, " }\n"); | |
| 709 fprintf(fp_cpp, " }\n"); | |
| 710 fprintf(fp_cpp, " }\n"); | |
| 711 fprintf(fp_cpp, " else {\n"); | |
| 712 fprintf(fp_cpp, " for (uint j = predUse->_lb; j <= predUse->_ub; j++) {\n"); | |
| 713 fprintf(fp_cpp, " Pipeline_Use_Element *currUse = element(j);\n"); | |
| 714 fprintf(fp_cpp, " currUse->_used |= (1 << j);\n"); | |
| 715 fprintf(fp_cpp, " _resources_used |= (1 << j);\n"); | |
| 716 fprintf(fp_cpp, " currUse->_mask.Or(predUse->_mask);\n"); | |
| 717 fprintf(fp_cpp, " }\n"); | |
| 718 fprintf(fp_cpp, " }\n"); | |
| 719 fprintf(fp_cpp, " }\n"); | |
| 720 fprintf(fp_cpp, "}\n\n"); | |
| 721 | |
| 722 fprintf(fp_cpp, "uint Pipeline::operand_latency(uint opnd, const Pipeline *pred) const {\n"); | |
| 723 fprintf(fp_cpp, " int const default_latency = 1;\n"); | |
| 724 fprintf(fp_cpp, "\n"); | |
| 725 #if 0 | |
| 726 fprintf(fp_cpp, "#ifndef PRODUCT\n"); | |
| 727 fprintf(fp_cpp, " if (TraceOptoOutput) {\n"); | |
| 728 fprintf(fp_cpp, " tty->print(\"# operand_latency(%%d), _read_stage_count = %%d\\n\", opnd, _read_stage_count);\n"); | |
| 729 fprintf(fp_cpp, " }\n"); | |
| 730 fprintf(fp_cpp, "#endif\n\n"); | |
| 731 #endif | |
|
1489
cff162798819
6888953: some calls to function-like macros are missing semicolons
jcoomes
parents:
1203
diff
changeset
|
732 fprintf(fp_cpp, " assert(this, \"NULL pipeline info\");\n"); |
|
cff162798819
6888953: some calls to function-like macros are missing semicolons
jcoomes
parents:
1203
diff
changeset
|
733 fprintf(fp_cpp, " assert(pred, \"NULL predecessor pipline info\");\n\n"); |
| 0 | 734 fprintf(fp_cpp, " if (pred->hasFixedLatency())\n return (pred->fixedLatency());\n\n"); |
| 735 fprintf(fp_cpp, " // If this is not an operand, then assume a dependence with 0 latency\n"); | |
| 736 fprintf(fp_cpp, " if (opnd > _read_stage_count)\n return (0);\n\n"); | |
| 737 fprintf(fp_cpp, " uint writeStage = pred->_write_stage;\n"); | |
| 738 fprintf(fp_cpp, " uint readStage = _read_stages[opnd-1];\n"); | |
| 739 #if 0 | |
| 740 fprintf(fp_cpp, "\n#ifndef PRODUCT\n"); | |
| 741 fprintf(fp_cpp, " if (TraceOptoOutput) {\n"); | |
| 742 fprintf(fp_cpp, " tty->print(\"# operand_latency: writeStage=%%s readStage=%%s, opnd=%%d\\n\", stageName(writeStage), stageName(readStage), opnd);\n"); | |
| 743 fprintf(fp_cpp, " }\n"); | |
| 744 fprintf(fp_cpp, "#endif\n\n"); | |
| 745 #endif | |
| 746 fprintf(fp_cpp, "\n"); | |
| 747 fprintf(fp_cpp, " if (writeStage == stage_undefined || readStage == stage_undefined)\n"); | |
| 748 fprintf(fp_cpp, " return (default_latency);\n"); | |
| 749 fprintf(fp_cpp, "\n"); | |
| 750 fprintf(fp_cpp, " int delta = writeStage - readStage;\n"); | |
| 751 fprintf(fp_cpp, " if (delta < 0) delta = 0;\n\n"); | |
| 752 #if 0 | |
| 753 fprintf(fp_cpp, "\n#ifndef PRODUCT\n"); | |
| 754 fprintf(fp_cpp, " if (TraceOptoOutput) {\n"); | |
| 755 fprintf(fp_cpp, " tty->print(\"# operand_latency: delta=%%d\\n\", delta);\n"); | |
| 756 fprintf(fp_cpp, " }\n"); | |
| 757 fprintf(fp_cpp, "#endif\n\n"); | |
| 758 #endif | |
| 759 fprintf(fp_cpp, " return (delta);\n"); | |
| 760 fprintf(fp_cpp, "}\n\n"); | |
| 761 | |
| 762 if (!_pipeline) | |
| 763 /* Do Nothing */; | |
| 764 | |
| 765 else if (_pipeline->_maxcycleused <= | |
| 766 #ifdef SPARC | |
| 767 64 | |
| 768 #else | |
| 769 32 | |
| 770 #endif | |
| 771 ) { | |
| 772 fprintf(fp_cpp, "Pipeline_Use_Cycle_Mask operator&(const Pipeline_Use_Cycle_Mask &in1, const Pipeline_Use_Cycle_Mask &in2) {\n"); | |
| 773 fprintf(fp_cpp, " return Pipeline_Use_Cycle_Mask(in1._mask & in2._mask);\n"); | |
| 774 fprintf(fp_cpp, "}\n\n"); | |
| 775 fprintf(fp_cpp, "Pipeline_Use_Cycle_Mask operator|(const Pipeline_Use_Cycle_Mask &in1, const Pipeline_Use_Cycle_Mask &in2) {\n"); | |
| 776 fprintf(fp_cpp, " return Pipeline_Use_Cycle_Mask(in1._mask | in2._mask);\n"); | |
| 777 fprintf(fp_cpp, "}\n\n"); | |
| 778 } | |
| 779 else { | |
| 780 uint l; | |
| 781 uint masklen = (_pipeline->_maxcycleused + 31) >> 5; | |
| 782 fprintf(fp_cpp, "Pipeline_Use_Cycle_Mask operator&(const Pipeline_Use_Cycle_Mask &in1, const Pipeline_Use_Cycle_Mask &in2) {\n"); | |
| 783 fprintf(fp_cpp, " return Pipeline_Use_Cycle_Mask("); | |
| 784 for (l = 1; l <= masklen; l++) | |
| 785 fprintf(fp_cpp, "in1._mask%d & in2._mask%d%s\n", l, l, l < masklen ? ", " : ""); | |
| 786 fprintf(fp_cpp, ");\n"); | |
| 787 fprintf(fp_cpp, "}\n\n"); | |
| 788 fprintf(fp_cpp, "Pipeline_Use_Cycle_Mask operator|(const Pipeline_Use_Cycle_Mask &in1, const Pipeline_Use_Cycle_Mask &in2) {\n"); | |
| 789 fprintf(fp_cpp, " return Pipeline_Use_Cycle_Mask("); | |
| 790 for (l = 1; l <= masklen; l++) | |
| 791 fprintf(fp_cpp, "in1._mask%d | in2._mask%d%s", l, l, l < masklen ? ", " : ""); | |
| 792 fprintf(fp_cpp, ");\n"); | |
| 793 fprintf(fp_cpp, "}\n\n"); | |
| 794 fprintf(fp_cpp, "void Pipeline_Use_Cycle_Mask::Or(const Pipeline_Use_Cycle_Mask &in2) {\n "); | |
| 795 for (l = 1; l <= masklen; l++) | |
| 796 fprintf(fp_cpp, " _mask%d |= in2._mask%d;", l, l); | |
| 797 fprintf(fp_cpp, "\n}\n\n"); | |
| 798 } | |
| 799 | |
| 800 /* Get the length of all the resource names */ | |
| 801 for (_pipeline->_reslist.reset(), resourcenamelen = 0; | |
| 802 (resourcename = _pipeline->_reslist.iter()) != NULL; | |
| 803 resourcenamelen += (int)strlen(resourcename)); | |
| 804 | |
| 805 // Create the pipeline class description | |
| 806 | |
| 807 fprintf(fp_cpp, "static const Pipeline pipeline_class_Zero_Instructions(0, 0, true, 0, 0, false, false, false, false, NULL, NULL, NULL, Pipeline_Use(0, 0, 0, NULL));\n\n"); | |
| 808 fprintf(fp_cpp, "static const Pipeline pipeline_class_Unknown_Instructions(0, 0, true, 0, 0, false, true, true, false, NULL, NULL, NULL, Pipeline_Use(0, 0, 0, NULL));\n\n"); | |
| 809 | |
| 810 fprintf(fp_cpp, "const Pipeline_Use_Element Pipeline_Use::elaborated_elements[%d] = {\n", _pipeline->_rescount); | |
| 811 for (int i1 = 0; i1 < _pipeline->_rescount; i1++) { | |
| 812 fprintf(fp_cpp, " Pipeline_Use_Element(0, %d, %d, false, Pipeline_Use_Cycle_Mask(", i1, i1); | |
| 813 uint masklen = (_pipeline->_maxcycleused + 31) >> 5; | |
| 814 for (int i2 = masklen-1; i2 >= 0; i2--) | |
| 815 fprintf(fp_cpp, "0%s", i2 > 0 ? ", " : ""); | |
| 816 fprintf(fp_cpp, "))%s\n", i1 < (_pipeline->_rescount-1) ? "," : ""); | |
| 817 } | |
| 818 fprintf(fp_cpp, "};\n\n"); | |
| 819 | |
| 820 fprintf(fp_cpp, "const Pipeline_Use Pipeline_Use::elaborated_use(0, 0, %d, (Pipeline_Use_Element *)&elaborated_elements[0]);\n\n", | |
| 821 _pipeline->_rescount); | |
| 822 | |
| 823 for (_pipeline->_classlist.reset(); (classname = _pipeline->_classlist.iter()) != NULL; ) { | |
| 824 fprintf(fp_cpp, "\n"); | |
| 825 fprintf(fp_cpp, "// Pipeline Class \"%s\"\n", classname); | |
| 826 PipeClassForm *pipeclass = _pipeline->_classdict[classname]->is_pipeclass(); | |
| 827 int maxWriteStage = -1; | |
| 828 int maxMoreInstrs = 0; | |
| 829 int paramcount = 0; | |
| 830 int i = 0; | |
| 831 const char *paramname; | |
| 832 int resource_count = (_pipeline->_rescount + 3) >> 2; | |
| 833 | |
| 834 // Scan the operands, looking for last output stage and number of inputs | |
| 835 for (pipeclass->_parameters.reset(); (paramname = pipeclass->_parameters.iter()) != NULL; ) { | |
| 836 const PipeClassOperandForm *pipeopnd = | |
| 837 (const PipeClassOperandForm *)pipeclass->_localUsage[paramname]; | |
| 838 if (pipeopnd) { | |
| 839 if (pipeopnd->_iswrite) { | |
| 840 int stagenum = _pipeline->_stages.index(pipeopnd->_stage); | |
| 841 int moreinsts = pipeopnd->_more_instrs; | |
| 842 if ((maxWriteStage+maxMoreInstrs) < (stagenum+moreinsts)) { | |
| 843 maxWriteStage = stagenum; | |
| 844 maxMoreInstrs = moreinsts; | |
| 845 } | |
| 846 } | |
| 847 } | |
| 848 | |
| 849 if (i++ > 0 || (pipeopnd && !pipeopnd->isWrite())) | |
| 850 paramcount++; | |
| 851 } | |
| 852 | |
| 853 // Create the list of stages for the operands that are read | |
| 854 // Note that we will build a NameList to reduce the number of copies | |
| 855 | |
| 856 int pipeline_reads_index = pipeline_reads_initializer(fp_cpp, pipeline_reads, pipeclass); | |
| 857 | |
| 858 int pipeline_res_stages_index = pipeline_res_stages_initializer( | |
| 859 fp_cpp, _pipeline, pipeline_res_stages, pipeclass); | |
| 860 | |
| 861 int pipeline_res_cycles_index = pipeline_res_cycles_initializer( | |
| 862 fp_cpp, _pipeline, pipeline_res_cycles, pipeclass); | |
| 863 | |
| 864 int pipeline_res_mask_index = pipeline_res_mask_initializer( | |
| 865 fp_cpp, _pipeline, pipeline_res_masks, pipeline_res_args, pipeclass); | |
| 866 | |
| 867 #if 0 | |
| 868 // Process the Resources | |
| 869 const PipeClassResourceForm *piperesource; | |
| 870 | |
| 871 unsigned resources_used = 0; | |
| 872 unsigned exclusive_resources_used = 0; | |
| 873 unsigned resource_groups = 0; | |
| 874 for (pipeclass->_resUsage.reset(); | |
| 875 (piperesource = (const PipeClassResourceForm *)pipeclass->_resUsage.iter()) != NULL; ) { | |
| 876 int used_mask = _pipeline->_resdict[piperesource->_resource]->is_resource()->mask(); | |
| 877 if (used_mask) | |
| 878 resource_groups++; | |
| 879 resources_used |= used_mask; | |
| 880 if ((used_mask & (used_mask-1)) == 0) | |
| 881 exclusive_resources_used |= used_mask; | |
| 882 } | |
| 883 | |
| 884 if (resource_groups > 0) { | |
| 885 fprintf(fp_cpp, "static const uint pipeline_res_or_masks_%03d[%d] = {", | |
| 886 pipeclass->_num, resource_groups); | |
| 887 for (pipeclass->_resUsage.reset(), i = 1; | |
| 888 (piperesource = (const PipeClassResourceForm *)pipeclass->_resUsage.iter()) != NULL; | |
| 889 i++ ) { | |
| 890 int used_mask = _pipeline->_resdict[piperesource->_resource]->is_resource()->mask(); | |
| 891 if (used_mask) { | |
| 892 fprintf(fp_cpp, " 0x%0*x%c", resource_count, used_mask, i < (int)resource_groups ? ',' : ' '); | |
| 893 } | |
| 894 } | |
| 895 fprintf(fp_cpp, "};\n\n"); | |
| 896 } | |
| 897 #endif | |
| 898 | |
| 899 // Create the pipeline class description | |
| 900 fprintf(fp_cpp, "static const Pipeline pipeline_class_%03d(", | |
| 901 pipeclass->_num); | |
| 902 if (maxWriteStage < 0) | |
| 903 fprintf(fp_cpp, "(uint)stage_undefined"); | |
| 904 else if (maxMoreInstrs == 0) | |
| 905 fprintf(fp_cpp, "(uint)stage_%s", _pipeline->_stages.name(maxWriteStage)); | |
| 906 else | |
| 907 fprintf(fp_cpp, "((uint)stage_%s)+%d", _pipeline->_stages.name(maxWriteStage), maxMoreInstrs); | |
| 908 fprintf(fp_cpp, ", %d, %s, %d, %d, %s, %s, %s, %s,\n", | |
| 909 paramcount, | |
| 910 pipeclass->hasFixedLatency() ? "true" : "false", | |
| 911 pipeclass->fixedLatency(), | |
| 912 pipeclass->InstructionCount(), | |
| 913 pipeclass->hasBranchDelay() ? "true" : "false", | |
| 914 pipeclass->hasMultipleBundles() ? "true" : "false", | |
| 915 pipeclass->forceSerialization() ? "true" : "false", | |
| 916 pipeclass->mayHaveNoCode() ? "true" : "false" ); | |
| 917 if (paramcount > 0) { | |
| 918 fprintf(fp_cpp, "\n (enum machPipelineStages * const) pipeline_reads_%03d,\n ", | |
| 919 pipeline_reads_index+1); | |
| 920 } | |
| 921 else | |
| 922 fprintf(fp_cpp, " NULL,"); | |
| 923 fprintf(fp_cpp, " (enum machPipelineStages * const) pipeline_res_stages_%03d,\n", | |
| 924 pipeline_res_stages_index+1); | |
| 925 fprintf(fp_cpp, " (uint * const) pipeline_res_cycles_%03d,\n", | |
| 926 pipeline_res_cycles_index+1); | |
| 927 fprintf(fp_cpp, " Pipeline_Use(%s, (Pipeline_Use_Element *)", | |
| 928 pipeline_res_args.name(pipeline_res_mask_index)); | |
| 929 if (strlen(pipeline_res_masks.name(pipeline_res_mask_index)) > 0) | |
| 930 fprintf(fp_cpp, "&pipeline_res_mask_%03d[0]", | |
| 931 pipeline_res_mask_index+1); | |
| 932 else | |
| 933 fprintf(fp_cpp, "NULL"); | |
| 934 fprintf(fp_cpp, "));\n"); | |
| 935 } | |
| 936 | |
| 937 // Generate the Node::latency method if _pipeline defined | |
| 938 fprintf(fp_cpp, "\n"); | |
| 939 fprintf(fp_cpp, "//------------------Inter-Instruction Latency--------------------------------\n"); | |
| 940 fprintf(fp_cpp, "uint Node::latency(uint i) {\n"); | |
| 941 if (_pipeline) { | |
| 942 #if 0 | |
| 943 fprintf(fp_cpp, "#ifndef PRODUCT\n"); | |
| 944 fprintf(fp_cpp, " if (TraceOptoOutput) {\n"); | |
| 945 fprintf(fp_cpp, " tty->print(\"# %%4d->latency(%%d)\\n\", _idx, i);\n"); | |
| 946 fprintf(fp_cpp, " }\n"); | |
| 947 fprintf(fp_cpp, "#endif\n"); | |
| 948 #endif | |
| 949 fprintf(fp_cpp, " uint j;\n"); | |
| 950 fprintf(fp_cpp, " // verify in legal range for inputs\n"); | |
| 951 fprintf(fp_cpp, " assert(i < len(), \"index not in range\");\n\n"); | |
| 952 fprintf(fp_cpp, " // verify input is not null\n"); | |
| 953 fprintf(fp_cpp, " Node *pred = in(i);\n"); | |
| 954 fprintf(fp_cpp, " if (!pred)\n return %d;\n\n", | |
| 955 non_operand_latency); | |
| 956 fprintf(fp_cpp, " if (pred->is_Proj())\n pred = pred->in(0);\n\n"); | |
| 957 fprintf(fp_cpp, " // if either node does not have pipeline info, use default\n"); | |
| 958 fprintf(fp_cpp, " const Pipeline *predpipe = pred->pipeline();\n"); | |
| 959 fprintf(fp_cpp, " assert(predpipe, \"no predecessor pipeline info\");\n\n"); | |
| 960 fprintf(fp_cpp, " if (predpipe->hasFixedLatency())\n return predpipe->fixedLatency();\n\n"); | |
| 961 fprintf(fp_cpp, " const Pipeline *currpipe = pipeline();\n"); | |
| 962 fprintf(fp_cpp, " assert(currpipe, \"no pipeline info\");\n\n"); | |
| 963 fprintf(fp_cpp, " if (!is_Mach())\n return %d;\n\n", | |
| 964 node_latency); | |
| 965 fprintf(fp_cpp, " const MachNode *m = as_Mach();\n"); | |
| 966 fprintf(fp_cpp, " j = m->oper_input_base();\n"); | |
| 967 fprintf(fp_cpp, " if (i < j)\n return currpipe->functional_unit_latency(%d, predpipe);\n\n", | |
| 968 non_operand_latency); | |
| 969 fprintf(fp_cpp, " // determine which operand this is in\n"); | |
| 970 fprintf(fp_cpp, " uint n = m->num_opnds();\n"); | |
| 971 fprintf(fp_cpp, " int delta = %d;\n\n", | |
| 972 non_operand_latency); | |
| 973 fprintf(fp_cpp, " uint k;\n"); | |
| 974 fprintf(fp_cpp, " for (k = 1; k < n; k++) {\n"); | |
| 975 fprintf(fp_cpp, " j += m->_opnds[k]->num_edges();\n"); | |
| 976 fprintf(fp_cpp, " if (i < j)\n"); | |
| 977 fprintf(fp_cpp, " break;\n"); | |
| 978 fprintf(fp_cpp, " }\n"); | |
| 979 fprintf(fp_cpp, " if (k < n)\n"); | |
| 980 fprintf(fp_cpp, " delta = currpipe->operand_latency(k,predpipe);\n\n"); | |
| 981 fprintf(fp_cpp, " return currpipe->functional_unit_latency(delta, predpipe);\n"); | |
| 982 } | |
| 983 else { | |
| 984 fprintf(fp_cpp, " // assert(false, \"pipeline functionality is not defined\");\n"); | |
| 985 fprintf(fp_cpp, " return %d;\n", | |
| 986 non_operand_latency); | |
| 987 } | |
| 988 fprintf(fp_cpp, "}\n\n"); | |
| 989 | |
| 990 // Output the list of nop nodes | |
| 991 fprintf(fp_cpp, "// Descriptions for emitting different functional unit nops\n"); | |
| 992 const char *nop; | |
| 993 int nopcnt = 0; | |
| 994 for ( _pipeline->_noplist.reset(); (nop = _pipeline->_noplist.iter()) != NULL; nopcnt++ ); | |
| 995 | |
| 996 fprintf(fp_cpp, "void Bundle::initialize_nops(MachNode * nop_list[%d], Compile *C) {\n", nopcnt); | |
| 997 int i = 0; | |
| 998 for ( _pipeline->_noplist.reset(); (nop = _pipeline->_noplist.iter()) != NULL; i++ ) { | |
| 999 fprintf(fp_cpp, " nop_list[%d] = (MachNode *) new (C) %sNode();\n", i, nop); | |
| 1000 } | |
| 1001 fprintf(fp_cpp, "};\n\n"); | |
| 1002 fprintf(fp_cpp, "#ifndef PRODUCT\n"); | |
| 1003 fprintf(fp_cpp, "void Bundle::dump() const {\n"); | |
| 1004 fprintf(fp_cpp, " static const char * bundle_flags[] = {\n"); | |
| 1005 fprintf(fp_cpp, " \"\",\n"); | |
| 1006 fprintf(fp_cpp, " \"use nop delay\",\n"); | |
| 1007 fprintf(fp_cpp, " \"use unconditional delay\",\n"); | |
| 1008 fprintf(fp_cpp, " \"use conditional delay\",\n"); | |
| 1009 fprintf(fp_cpp, " \"used in conditional delay\",\n"); | |
| 1010 fprintf(fp_cpp, " \"used in unconditional delay\",\n"); | |
| 1011 fprintf(fp_cpp, " \"used in all conditional delays\",\n"); | |
| 1012 fprintf(fp_cpp, " };\n\n"); | |
| 1013 | |
| 1014 fprintf(fp_cpp, " static const char *resource_names[%d] = {", _pipeline->_rescount); | |
| 1015 for (i = 0; i < _pipeline->_rescount; i++) | |
| 1016 fprintf(fp_cpp, " \"%s\"%c", _pipeline->_reslist.name(i), i < _pipeline->_rescount-1 ? ',' : ' '); | |
| 1017 fprintf(fp_cpp, "};\n\n"); | |
| 1018 | |
| 1019 // See if the same string is in the table | |
| 1020 fprintf(fp_cpp, " bool needs_comma = false;\n\n"); | |
| 1021 fprintf(fp_cpp, " if (_flags) {\n"); | |
| 1022 fprintf(fp_cpp, " tty->print(\"%%s\", bundle_flags[_flags]);\n"); | |
| 1023 fprintf(fp_cpp, " needs_comma = true;\n"); | |
| 1024 fprintf(fp_cpp, " };\n"); | |
| 1025 fprintf(fp_cpp, " if (instr_count()) {\n"); | |
| 1026 fprintf(fp_cpp, " tty->print(\"%%s%%d instr%%s\", needs_comma ? \", \" : \"\", instr_count(), instr_count() != 1 ? \"s\" : \"\");\n"); | |
| 1027 fprintf(fp_cpp, " needs_comma = true;\n"); | |
| 1028 fprintf(fp_cpp, " };\n"); | |
| 1029 fprintf(fp_cpp, " uint r = resources_used();\n"); | |
| 1030 fprintf(fp_cpp, " if (r) {\n"); | |
| 1031 fprintf(fp_cpp, " tty->print(\"%%sresource%%s:\", needs_comma ? \", \" : \"\", (r & (r-1)) != 0 ? \"s\" : \"\");\n"); | |
| 1032 fprintf(fp_cpp, " for (uint i = 0; i < %d; i++)\n", _pipeline->_rescount); | |
| 1033 fprintf(fp_cpp, " if ((r & (1 << i)) != 0)\n"); | |
| 1034 fprintf(fp_cpp, " tty->print(\" %%s\", resource_names[i]);\n"); | |
| 1035 fprintf(fp_cpp, " needs_comma = true;\n"); | |
| 1036 fprintf(fp_cpp, " };\n"); | |
| 1037 fprintf(fp_cpp, " tty->print(\"\\n\");\n"); | |
| 1038 fprintf(fp_cpp, "}\n"); | |
| 1039 fprintf(fp_cpp, "#endif\n"); | |
| 1040 } | |
| 1041 | |
| 1042 // --------------------------------------------------------------------------- | |
| 1043 //------------------------------Utilities to build Instruction Classes-------- | |
| 1044 // --------------------------------------------------------------------------- | |
| 1045 | |
| 1046 static void defineOut_RegMask(FILE *fp, const char *node, const char *regMask) { | |
| 1047 fprintf(fp,"const RegMask &%sNode::out_RegMask() const { return (%s); }\n", | |
| 1048 node, regMask); | |
| 1049 } | |
| 1050 | |
| 1051 // Scan the peepmatch and output a test for each instruction | |
| 1052 static void check_peepmatch_instruction_tree(FILE *fp, PeepMatch *pmatch, PeepConstraint *pconstraint) { | |
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1053 int parent = -1; |
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1054 int inst_position = 0; |
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1055 const char* inst_name = NULL; |
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1056 int input = 0; |
| 0 | 1057 fprintf(fp, " // Check instruction sub-tree\n"); |
| 1058 pmatch->reset(); | |
| 1059 for( pmatch->next_instruction( parent, inst_position, inst_name, input ); | |
| 1060 inst_name != NULL; | |
| 1061 pmatch->next_instruction( parent, inst_position, inst_name, input ) ) { | |
| 1062 // If this is not a placeholder | |
| 1063 if( ! pmatch->is_placeholder() ) { | |
| 1064 // Define temporaries 'inst#', based on parent and parent's input index | |
| 1065 if( parent != -1 ) { // root was initialized | |
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1066 fprintf(fp, " inst%d = inst%d->in(%d);\n", |
| 0 | 1067 inst_position, parent, input); |
| 1068 } | |
| 1069 | |
| 1070 // When not the root | |
| 1071 // Test we have the correct instruction by comparing the rule | |
| 1072 if( parent != -1 ) { | |
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1073 fprintf(fp, " matches = matches && ( inst%d->rule() == %s_rule );", |
| 0 | 1074 inst_position, inst_name); |
| 1075 } | |
| 1076 } else { | |
| 1077 // Check that user did not try to constrain a placeholder | |
| 1078 assert( ! pconstraint->constrains_instruction(inst_position), | |
| 1079 "fatal(): Can not constrain a placeholder instruction"); | |
| 1080 } | |
| 1081 } | |
| 1082 } | |
| 1083 | |
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1084 static void print_block_index(FILE *fp, int inst_position) { |
| 0 | 1085 assert( inst_position >= 0, "Instruction number less than zero"); |
| 1086 fprintf(fp, "block_index"); | |
| 1087 if( inst_position != 0 ) { | |
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1088 fprintf(fp, " - %d", inst_position); |
| 0 | 1089 } |
| 1090 } | |
| 1091 | |
| 1092 // Scan the peepmatch and output a test for each instruction | |
| 1093 static void check_peepmatch_instruction_sequence(FILE *fp, PeepMatch *pmatch, PeepConstraint *pconstraint) { | |
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1094 int parent = -1; |
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1095 int inst_position = 0; |
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1096 const char* inst_name = NULL; |
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1097 int input = 0; |
| 0 | 1098 fprintf(fp, " // Check instruction sub-tree\n"); |
| 1099 pmatch->reset(); | |
| 1100 for( pmatch->next_instruction( parent, inst_position, inst_name, input ); | |
| 1101 inst_name != NULL; | |
| 1102 pmatch->next_instruction( parent, inst_position, inst_name, input ) ) { | |
| 1103 // If this is not a placeholder | |
| 1104 if( ! pmatch->is_placeholder() ) { | |
| 1105 // Define temporaries 'inst#', based on parent and parent's input index | |
| 1106 if( parent != -1 ) { // root was initialized | |
| 1107 fprintf(fp, " // Identify previous instruction if inside this block\n"); | |
| 1108 fprintf(fp, " if( "); | |
| 1109 print_block_index(fp, inst_position); | |
| 1110 fprintf(fp, " > 0 ) {\n Node *n = block->_nodes.at("); | |
| 1111 print_block_index(fp, inst_position); | |
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1112 fprintf(fp, ");\n inst%d = (n->is_Mach()) ? ", inst_position); |
| 0 | 1113 fprintf(fp, "n->as_Mach() : NULL;\n }\n"); |
| 1114 } | |
| 1115 | |
| 1116 // When not the root | |
| 1117 // Test we have the correct instruction by comparing the rule. | |
| 1118 if( parent != -1 ) { | |
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1119 fprintf(fp, " matches = matches && (inst%d != NULL) && (inst%d->rule() == %s_rule);\n", |
| 0 | 1120 inst_position, inst_position, inst_name); |
| 1121 } | |
| 1122 } else { | |
| 1123 // Check that user did not try to constrain a placeholder | |
| 1124 assert( ! pconstraint->constrains_instruction(inst_position), | |
| 1125 "fatal(): Can not constrain a placeholder instruction"); | |
| 1126 } | |
| 1127 } | |
| 1128 } | |
| 1129 | |
| 1130 // Build mapping for register indices, num_edges to input | |
| 1131 static void build_instruction_index_mapping( FILE *fp, FormDict &globals, PeepMatch *pmatch ) { | |
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1132 int parent = -1; |
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1133 int inst_position = 0; |
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1134 const char* inst_name = NULL; |
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1135 int input = 0; |
| 0 | 1136 fprintf(fp, " // Build map to register info\n"); |
| 1137 pmatch->reset(); | |
| 1138 for( pmatch->next_instruction( parent, inst_position, inst_name, input ); | |
| 1139 inst_name != NULL; | |
| 1140 pmatch->next_instruction( parent, inst_position, inst_name, input ) ) { | |
| 1141 // If this is not a placeholder | |
| 1142 if( ! pmatch->is_placeholder() ) { | |
| 1143 // Define temporaries 'inst#', based on self's inst_position | |
| 1144 InstructForm *inst = globals[inst_name]->is_instruction(); | |
| 1145 if( inst != NULL ) { | |
| 1146 char inst_prefix[] = "instXXXX_"; | |
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1147 sprintf(inst_prefix, "inst%d_", inst_position); |
| 0 | 1148 char receiver[] = "instXXXX->"; |
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1149 sprintf(receiver, "inst%d->", inst_position); |
| 0 | 1150 inst->index_temps( fp, globals, inst_prefix, receiver ); |
| 1151 } | |
| 1152 } | |
| 1153 } | |
| 1154 } | |
| 1155 | |
| 1156 // Generate tests for the constraints | |
| 1157 static void check_peepconstraints(FILE *fp, FormDict &globals, PeepMatch *pmatch, PeepConstraint *pconstraint) { | |
| 1158 fprintf(fp, "\n"); | |
| 1159 fprintf(fp, " // Check constraints on sub-tree-leaves\n"); | |
| 1160 | |
| 1161 // Build mapping from num_edges to local variables | |
| 1162 build_instruction_index_mapping( fp, globals, pmatch ); | |
| 1163 | |
| 1164 // Build constraint tests | |
| 1165 if( pconstraint != NULL ) { | |
| 1166 fprintf(fp, " matches = matches &&"); | |
| 1167 bool first_constraint = true; | |
| 1168 while( pconstraint != NULL ) { | |
| 1169 // indentation and connecting '&&' | |
| 1170 const char *indentation = " "; | |
| 1171 fprintf(fp, "\n%s%s", indentation, (!first_constraint ? "&& " : " ")); | |
| 1172 | |
| 1173 // Only have '==' relation implemented | |
| 1174 if( strcmp(pconstraint->_relation,"==") != 0 ) { | |
| 1175 assert( false, "Unimplemented()" ); | |
| 1176 } | |
| 1177 | |
| 1178 // LEFT | |
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1179 int left_index = pconstraint->_left_inst; |
| 0 | 1180 const char *left_op = pconstraint->_left_op; |
| 1181 // Access info on the instructions whose operands are compared | |
| 1182 InstructForm *inst_left = globals[pmatch->instruction_name(left_index)]->is_instruction(); | |
| 1183 assert( inst_left, "Parser should guaranty this is an instruction"); | |
| 1184 int left_op_base = inst_left->oper_input_base(globals); | |
| 1185 // Access info on the operands being compared | |
| 1186 int left_op_index = inst_left->operand_position(left_op, Component::USE); | |
| 1187 if( left_op_index == -1 ) { | |
| 1188 left_op_index = inst_left->operand_position(left_op, Component::DEF); | |
| 1189 if( left_op_index == -1 ) { | |
| 1190 left_op_index = inst_left->operand_position(left_op, Component::USE_DEF); | |
| 1191 } | |
| 1192 } | |
| 1193 assert( left_op_index != NameList::Not_in_list, "Did not find operand in instruction"); | |
| 1194 ComponentList components_left = inst_left->_components; | |
| 1195 const char *left_comp_type = components_left.at(left_op_index)->_type; | |
| 1196 OpClassForm *left_opclass = globals[left_comp_type]->is_opclass(); | |
| 1197 Form::InterfaceType left_interface_type = left_opclass->interface_type(globals); | |
| 1198 | |
| 1199 | |
| 1200 // RIGHT | |
| 1201 int right_op_index = -1; | |
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1202 int right_index = pconstraint->_right_inst; |
| 0 | 1203 const char *right_op = pconstraint->_right_op; |
| 1204 if( right_index != -1 ) { // Match operand | |
| 1205 // Access info on the instructions whose operands are compared | |
| 1206 InstructForm *inst_right = globals[pmatch->instruction_name(right_index)]->is_instruction(); | |
| 1207 assert( inst_right, "Parser should guaranty this is an instruction"); | |
| 1208 int right_op_base = inst_right->oper_input_base(globals); | |
| 1209 // Access info on the operands being compared | |
| 1210 right_op_index = inst_right->operand_position(right_op, Component::USE); | |
| 1211 if( right_op_index == -1 ) { | |
| 1212 right_op_index = inst_right->operand_position(right_op, Component::DEF); | |
| 1213 if( right_op_index == -1 ) { | |
| 1214 right_op_index = inst_right->operand_position(right_op, Component::USE_DEF); | |
| 1215 } | |
| 1216 } | |
| 1217 assert( right_op_index != NameList::Not_in_list, "Did not find operand in instruction"); | |
| 1218 ComponentList components_right = inst_right->_components; | |
| 1219 const char *right_comp_type = components_right.at(right_op_index)->_type; | |
| 1220 OpClassForm *right_opclass = globals[right_comp_type]->is_opclass(); | |
| 1221 Form::InterfaceType right_interface_type = right_opclass->interface_type(globals); | |
| 1222 assert( right_interface_type == left_interface_type, "Both must be same interface"); | |
| 1223 | |
| 1224 } else { // Else match register | |
| 1225 // assert( false, "should be a register" ); | |
| 1226 } | |
| 1227 | |
| 1228 // | |
| 1229 // Check for equivalence | |
| 1230 // | |
| 1231 // fprintf(fp, "phase->eqv( "); | |
| 1232 // fprintf(fp, "inst%d->in(%d+%d) /* %s */, inst%d->in(%d+%d) /* %s */", | |
| 1233 // left_index, left_op_base, left_op_index, left_op, | |
| 1234 // right_index, right_op_base, right_op_index, right_op ); | |
| 1235 // fprintf(fp, ")"); | |
| 1236 // | |
| 1237 switch( left_interface_type ) { | |
| 1238 case Form::register_interface: { | |
| 1239 // Check that they are allocated to the same register | |
| 1240 // Need parameter for index position if not result operand | |
| 1241 char left_reg_index[] = ",instXXXX_idxXXXX"; | |
| 1242 if( left_op_index != 0 ) { | |
| 1243 assert( (left_index <= 9999) && (left_op_index <= 9999), "exceed string size"); | |
| 1244 // Must have index into operands | |
| 1245 sprintf(left_reg_index,",inst%d_idx%d", left_index, left_op_index); | |
| 1246 } else { | |
| 1247 strcpy(left_reg_index, ""); | |
| 1248 } | |
| 1249 fprintf(fp, "(inst%d->_opnds[%d]->reg(ra_,inst%d%s) /* %d.%s */", | |
| 1250 left_index, left_op_index, left_index, left_reg_index, left_index, left_op ); | |
| 1251 fprintf(fp, " == "); | |
| 1252 | |
| 1253 if( right_index != -1 ) { | |
| 1254 char right_reg_index[18] = ",instXXXX_idxXXXX"; | |
| 1255 if( right_op_index != 0 ) { | |
| 1256 assert( (right_index <= 9999) && (right_op_index <= 9999), "exceed string size"); | |
| 1257 // Must have index into operands | |
| 1258 sprintf(right_reg_index,",inst%d_idx%d", right_index, right_op_index); | |
| 1259 } else { | |
| 1260 strcpy(right_reg_index, ""); | |
| 1261 } | |
| 1262 fprintf(fp, "/* %d.%s */ inst%d->_opnds[%d]->reg(ra_,inst%d%s)", | |
| 1263 right_index, right_op, right_index, right_op_index, right_index, right_reg_index ); | |
| 1264 } else { | |
| 1265 fprintf(fp, "%s_enc", right_op ); | |
| 1266 } | |
| 1267 fprintf(fp,")"); | |
| 1268 break; | |
| 1269 } | |
| 1270 case Form::constant_interface: { | |
| 1271 // Compare the '->constant()' values | |
| 1272 fprintf(fp, "(inst%d->_opnds[%d]->constant() /* %d.%s */", | |
| 1273 left_index, left_op_index, left_index, left_op ); | |
| 1274 fprintf(fp, " == "); | |
| 1275 fprintf(fp, "/* %d.%s */ inst%d->_opnds[%d]->constant())", | |
| 1276 right_index, right_op, right_index, right_op_index ); | |
| 1277 break; | |
| 1278 } | |
| 1279 case Form::memory_interface: { | |
| 1280 // Compare 'base', 'index', 'scale', and 'disp' | |
| 1281 // base | |
| 1282 fprintf(fp, "( \n"); | |
| 1283 fprintf(fp, " (inst%d->_opnds[%d]->base(ra_,inst%d,inst%d_idx%d) /* %d.%s$$base */", | |
| 1284 left_index, left_op_index, left_index, left_index, left_op_index, left_index, left_op ); | |
| 1285 fprintf(fp, " == "); | |
| 1286 fprintf(fp, "/* %d.%s$$base */ inst%d->_opnds[%d]->base(ra_,inst%d,inst%d_idx%d)) &&\n", | |
| 1287 right_index, right_op, right_index, right_op_index, right_index, right_index, right_op_index ); | |
| 1288 // index | |
| 1289 fprintf(fp, " (inst%d->_opnds[%d]->index(ra_,inst%d,inst%d_idx%d) /* %d.%s$$index */", | |
| 1290 left_index, left_op_index, left_index, left_index, left_op_index, left_index, left_op ); | |
| 1291 fprintf(fp, " == "); | |
| 1292 fprintf(fp, "/* %d.%s$$index */ inst%d->_opnds[%d]->index(ra_,inst%d,inst%d_idx%d)) &&\n", | |
| 1293 right_index, right_op, right_index, right_op_index, right_index, right_index, right_op_index ); | |
| 1294 // scale | |
| 1295 fprintf(fp, " (inst%d->_opnds[%d]->scale() /* %d.%s$$scale */", | |
| 1296 left_index, left_op_index, left_index, left_op ); | |
| 1297 fprintf(fp, " == "); | |
| 1298 fprintf(fp, "/* %d.%s$$scale */ inst%d->_opnds[%d]->scale()) &&\n", | |
| 1299 right_index, right_op, right_index, right_op_index ); | |
| 1300 // disp | |
| 1301 fprintf(fp, " (inst%d->_opnds[%d]->disp(ra_,inst%d,inst%d_idx%d) /* %d.%s$$disp */", | |
| 1302 left_index, left_op_index, left_index, left_index, left_op_index, left_index, left_op ); | |
| 1303 fprintf(fp, " == "); | |
| 1304 fprintf(fp, "/* %d.%s$$disp */ inst%d->_opnds[%d]->disp(ra_,inst%d,inst%d_idx%d))\n", | |
| 1305 right_index, right_op, right_index, right_op_index, right_index, right_index, right_op_index ); | |
| 1306 fprintf(fp, ") \n"); | |
| 1307 break; | |
| 1308 } | |
| 1309 case Form::conditional_interface: { | |
| 1310 // Compare the condition code being tested | |
| 1311 assert( false, "Unimplemented()" ); | |
| 1312 break; | |
| 1313 } | |
| 1314 default: { | |
| 1315 assert( false, "ShouldNotReachHere()" ); | |
| 1316 break; | |
| 1317 } | |
| 1318 } | |
| 1319 | |
| 1320 // Advance to next constraint | |
| 1321 pconstraint = pconstraint->next(); | |
| 1322 first_constraint = false; | |
| 1323 } | |
| 1324 | |
| 1325 fprintf(fp, ";\n"); | |
| 1326 } | |
| 1327 } | |
| 1328 | |
| 1329 // // EXPERIMENTAL -- TEMPORARY code | |
| 1330 // static Form::DataType get_operand_type(FormDict &globals, InstructForm *instr, const char *op_name ) { | |
| 1331 // int op_index = instr->operand_position(op_name, Component::USE); | |
| 1332 // if( op_index == -1 ) { | |
| 1333 // op_index = instr->operand_position(op_name, Component::DEF); | |
| 1334 // if( op_index == -1 ) { | |
| 1335 // op_index = instr->operand_position(op_name, Component::USE_DEF); | |
| 1336 // } | |
| 1337 // } | |
| 1338 // assert( op_index != NameList::Not_in_list, "Did not find operand in instruction"); | |
| 1339 // | |
| 1340 // ComponentList components_right = instr->_components; | |
| 1341 // char *right_comp_type = components_right.at(op_index)->_type; | |
| 1342 // OpClassForm *right_opclass = globals[right_comp_type]->is_opclass(); | |
| 1343 // Form::InterfaceType right_interface_type = right_opclass->interface_type(globals); | |
| 1344 // | |
| 1345 // return; | |
| 1346 // } | |
| 1347 | |
| 1348 // Construct the new sub-tree | |
| 1349 static void generate_peepreplace( FILE *fp, FormDict &globals, PeepMatch *pmatch, PeepConstraint *pconstraint, PeepReplace *preplace, int max_position ) { | |
| 1350 fprintf(fp, " // IF instructions and constraints matched\n"); | |
| 1351 fprintf(fp, " if( matches ) {\n"); | |
| 1352 fprintf(fp, " // generate the new sub-tree\n"); | |
| 1353 fprintf(fp, " assert( true, \"Debug stopping point\");\n"); | |
| 1354 if( preplace != NULL ) { | |
| 1355 // Get the root of the new sub-tree | |
| 1356 const char *root_inst = NULL; | |
| 1357 preplace->next_instruction(root_inst); | |
| 1358 InstructForm *root_form = globals[root_inst]->is_instruction(); | |
| 1359 assert( root_form != NULL, "Replacement instruction was not previously defined"); | |
| 1360 fprintf(fp, " %sNode *root = new (C) %sNode();\n", root_inst, root_inst); | |
| 1361 | |
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1362 int inst_num; |
| 0 | 1363 const char *op_name; |
| 1364 int opnds_index = 0; // define result operand | |
| 1365 // Then install the use-operands for the new sub-tree | |
| 1366 // preplace->reset(); // reset breaks iteration | |
| 1367 for( preplace->next_operand( inst_num, op_name ); | |
| 1368 op_name != NULL; | |
| 1369 preplace->next_operand( inst_num, op_name ) ) { | |
| 1370 InstructForm *inst_form; | |
| 1371 inst_form = globals[pmatch->instruction_name(inst_num)]->is_instruction(); | |
| 1372 assert( inst_form, "Parser should guaranty this is an instruction"); | |
| 1373 int inst_op_num = inst_form->operand_position(op_name, Component::USE); | |
| 1374 if( inst_op_num == NameList::Not_in_list ) | |
| 1375 inst_op_num = inst_form->operand_position(op_name, Component::USE_DEF); | |
| 1376 assert( inst_op_num != NameList::Not_in_list, "Did not find operand as USE"); | |
| 1377 // find the name of the OperandForm from the local name | |
| 1378 const Form *form = inst_form->_localNames[op_name]; | |
| 1379 OperandForm *op_form = form->is_operand(); | |
| 1380 if( opnds_index == 0 ) { | |
| 1381 // Initial setup of new instruction | |
| 1382 fprintf(fp, " // ----- Initial setup -----\n"); | |
| 1383 // | |
| 1384 // Add control edge for this node | |
| 1385 fprintf(fp, " root->add_req(_in[0]); // control edge\n"); | |
| 1386 // Add unmatched edges from root of match tree | |
| 1387 int op_base = root_form->oper_input_base(globals); | |
| 1388 for( int unmatched_edge = 1; unmatched_edge < op_base; ++unmatched_edge ) { | |
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1389 fprintf(fp, " root->add_req(inst%d->in(%d)); // unmatched ideal edge\n", |
| 0 | 1390 inst_num, unmatched_edge); |
| 1391 } | |
| 1392 // If new instruction captures bottom type | |
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1393 if( root_form->captures_bottom_type(globals) ) { |
| 0 | 1394 // Get bottom type from instruction whose result we are replacing |
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1395 fprintf(fp, " root->_bottom_type = inst%d->bottom_type();\n", inst_num); |
| 0 | 1396 } |
| 1397 // Define result register and result operand | |
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1398 fprintf(fp, " ra_->add_reference(root, inst%d);\n", inst_num); |
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1399 fprintf(fp, " ra_->set_oop (root, ra_->is_oop(inst%d));\n", inst_num); |
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1400 fprintf(fp, " ra_->set_pair(root->_idx, ra_->get_reg_second(inst%d), ra_->get_reg_first(inst%d));\n", inst_num, inst_num); |
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1401 fprintf(fp, " root->_opnds[0] = inst%d->_opnds[0]->clone(C); // result\n", inst_num); |
| 0 | 1402 fprintf(fp, " // ----- Done with initial setup -----\n"); |
| 1403 } else { | |
| 1404 if( (op_form == NULL) || (op_form->is_base_constant(globals) == Form::none) ) { | |
| 1405 // Do not have ideal edges for constants after matching | |
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1406 fprintf(fp, " for( unsigned x%d = inst%d_idx%d; x%d < inst%d_idx%d; x%d++ )\n", |
| 0 | 1407 inst_op_num, inst_num, inst_op_num, |
| 1408 inst_op_num, inst_num, inst_op_num+1, inst_op_num ); | |
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1409 fprintf(fp, " root->add_req( inst%d->in(x%d) );\n", |
| 0 | 1410 inst_num, inst_op_num ); |
| 1411 } else { | |
| 1412 fprintf(fp, " // no ideal edge for constants after matching\n"); | |
| 1413 } | |
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1414 fprintf(fp, " root->_opnds[%d] = inst%d->_opnds[%d]->clone(C);\n", |
| 0 | 1415 opnds_index, inst_num, inst_op_num ); |
| 1416 } | |
| 1417 ++opnds_index; | |
| 1418 } | |
| 1419 }else { | |
| 1420 // Replacing subtree with empty-tree | |
| 1421 assert( false, "ShouldNotReachHere();"); | |
| 1422 } | |
| 1423 | |
| 1424 // Return the new sub-tree | |
| 1425 fprintf(fp, " deleted = %d;\n", max_position+1 /*zero to one based*/); | |
| 1426 fprintf(fp, " return root; // return new root;\n"); | |
| 1427 fprintf(fp, " }\n"); | |
| 1428 } | |
| 1429 | |
| 1430 | |
| 1431 // Define the Peephole method for an instruction node | |
| 1432 void ArchDesc::definePeephole(FILE *fp, InstructForm *node) { | |
| 1433 // Generate Peephole function header | |
| 1434 fprintf(fp, "MachNode *%sNode::peephole( Block *block, int block_index, PhaseRegAlloc *ra_, int &deleted, Compile* C ) {\n", node->_ident); | |
| 1435 fprintf(fp, " bool matches = true;\n"); | |
| 1436 | |
| 1437 // Identify the maximum instruction position, | |
| 1438 // generate temporaries that hold current instruction | |
| 1439 // | |
| 1440 // MachNode *inst0 = NULL; | |
| 1441 // ... | |
| 1442 // MachNode *instMAX = NULL; | |
| 1443 // | |
| 1444 int max_position = 0; | |
| 1445 Peephole *peep; | |
| 1446 for( peep = node->peepholes(); peep != NULL; peep = peep->next() ) { | |
| 1447 PeepMatch *pmatch = peep->match(); | |
| 1448 assert( pmatch != NULL, "fatal(), missing peepmatch rule"); | |
| 1449 if( max_position < pmatch->max_position() ) max_position = pmatch->max_position(); | |
| 1450 } | |
| 1451 for( int i = 0; i <= max_position; ++i ) { | |
| 1452 if( i == 0 ) { | |
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1453 fprintf(fp, " MachNode *inst0 = this;\n"); |
| 0 | 1454 } else { |
| 1455 fprintf(fp, " MachNode *inst%d = NULL;\n", i); | |
| 1456 } | |
| 1457 } | |
| 1458 | |
| 1459 // For each peephole rule in architecture description | |
| 1460 // Construct a test for the desired instruction sub-tree | |
| 1461 // then check the constraints | |
| 1462 // If these match, Generate the new subtree | |
| 1463 for( peep = node->peepholes(); peep != NULL; peep = peep->next() ) { | |
| 1464 int peephole_number = peep->peephole_number(); | |
| 1465 PeepMatch *pmatch = peep->match(); | |
| 1466 PeepConstraint *pconstraint = peep->constraints(); | |
| 1467 PeepReplace *preplace = peep->replacement(); | |
| 1468 | |
| 1469 // Root of this peephole is the current MachNode | |
| 1470 assert( true, // %%name?%% strcmp( node->_ident, pmatch->name(0) ) == 0, | |
| 1471 "root of PeepMatch does not match instruction"); | |
| 1472 | |
| 1473 // Make each peephole rule individually selectable | |
| 1474 fprintf(fp, " if( (OptoPeepholeAt == -1) || (OptoPeepholeAt==%d) ) {\n", peephole_number); | |
| 1475 fprintf(fp, " matches = true;\n"); | |
| 1476 // Scan the peepmatch and output a test for each instruction | |
| 1477 check_peepmatch_instruction_sequence( fp, pmatch, pconstraint ); | |
| 1478 | |
| 1479 // Check constraints and build replacement inside scope | |
| 1480 fprintf(fp, " // If instruction subtree matches\n"); | |
| 1481 fprintf(fp, " if( matches ) {\n"); | |
| 1482 | |
| 1483 // Generate tests for the constraints | |
| 1484 check_peepconstraints( fp, _globalNames, pmatch, pconstraint ); | |
| 1485 | |
| 1486 // Construct the new sub-tree | |
| 1487 generate_peepreplace( fp, _globalNames, pmatch, pconstraint, preplace, max_position ); | |
| 1488 | |
| 1489 // End of scope for this peephole's constraints | |
| 1490 fprintf(fp, " }\n"); | |
| 1491 // Closing brace '}' to make each peephole rule individually selectable | |
| 1492 fprintf(fp, " } // end of peephole rule #%d\n", peephole_number); | |
| 1493 fprintf(fp, "\n"); | |
| 1494 } | |
| 1495 | |
| 1496 fprintf(fp, " return NULL; // No peephole rules matched\n"); | |
| 1497 fprintf(fp, "}\n"); | |
| 1498 fprintf(fp, "\n"); | |
| 1499 } | |
| 1500 | |
| 1501 // Define the Expand method for an instruction node | |
| 1502 void ArchDesc::defineExpand(FILE *fp, InstructForm *node) { | |
| 1503 unsigned cnt = 0; // Count nodes we have expand into | |
| 1504 unsigned i; | |
| 1505 | |
| 1506 // Generate Expand function header | |
| 2008 | 1507 fprintf(fp, "MachNode* %sNode::Expand(State* state, Node_List& proj_list, Node* mem) {\n", node->_ident); |
| 1508 fprintf(fp, " Compile* C = Compile::current();\n"); | |
| 0 | 1509 // Generate expand code |
| 1510 if( node->expands() ) { | |
| 1511 const char *opid; | |
| 1512 int new_pos, exp_pos; | |
| 1513 const char *new_id = NULL; | |
| 1514 const Form *frm = NULL; | |
| 1515 InstructForm *new_inst = NULL; | |
| 1516 OperandForm *new_oper = NULL; | |
| 1517 unsigned numo = node->num_opnds() + | |
| 1518 node->_exprule->_newopers.count(); | |
| 1519 | |
| 1520 // If necessary, generate any operands created in expand rule | |
| 1521 if (node->_exprule->_newopers.count()) { | |
| 1522 for(node->_exprule->_newopers.reset(); | |
| 1523 (new_id = node->_exprule->_newopers.iter()) != NULL; cnt++) { | |
| 1524 frm = node->_localNames[new_id]; | |
| 1525 assert(frm, "Invalid entry in new operands list of expand rule"); | |
| 1526 new_oper = frm->is_operand(); | |
| 1527 char *tmp = (char *)node->_exprule->_newopconst[new_id]; | |
| 1528 if (tmp == NULL) { | |
| 1529 fprintf(fp," MachOper *op%d = new (C) %sOper();\n", | |
| 1530 cnt, new_oper->_ident); | |
| 1531 } | |
| 1532 else { | |
| 1533 fprintf(fp," MachOper *op%d = new (C) %sOper(%s);\n", | |
| 1534 cnt, new_oper->_ident, tmp); | |
| 1535 } | |
| 1536 } | |
| 1537 } | |
| 1538 cnt = 0; | |
| 1539 // Generate the temps to use for DAG building | |
| 1540 for(i = 0; i < numo; i++) { | |
| 1541 if (i < node->num_opnds()) { | |
| 1542 fprintf(fp," MachNode *tmp%d = this;\n", i); | |
| 1543 } | |
| 1544 else { | |
| 1545 fprintf(fp," MachNode *tmp%d = NULL;\n", i); | |
| 1546 } | |
| 1547 } | |
| 1548 // Build mapping from num_edges to local variables | |
| 1549 fprintf(fp," unsigned num0 = 0;\n"); | |
| 1550 for( i = 1; i < node->num_opnds(); i++ ) { | |
| 1551 fprintf(fp," unsigned num%d = opnd_array(%d)->num_edges();\n",i,i); | |
| 1552 } | |
| 1553 | |
| 1554 // Build a mapping from operand index to input edges | |
| 1555 fprintf(fp," unsigned idx0 = oper_input_base();\n"); | |
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1556 |
| 1203 | 1557 // The order in which the memory input is added to a node is very |
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1558 // strange. Store nodes get a memory input before Expand is |
| 1203 | 1559 // called and other nodes get it afterwards or before depending on |
| 1560 // match order so oper_input_base is wrong during expansion. This | |
| 1561 // code adjusts it so that expansion will work correctly. | |
| 1562 int has_memory_edge = node->_matrule->needs_ideal_memory_edge(_globalNames); | |
| 1563 if (has_memory_edge) { | |
| 1564 fprintf(fp," if (mem == (Node*)1) {\n"); | |
| 1565 fprintf(fp," idx0--; // Adjust base because memory edge hasn't been inserted yet\n"); | |
| 1566 fprintf(fp," }\n"); | |
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1567 } |
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1568 |
| 0 | 1569 for( i = 0; i < node->num_opnds(); i++ ) { |
| 1570 fprintf(fp," unsigned idx%d = idx%d + num%d;\n", | |
| 1571 i+1,i,i); | |
| 1572 } | |
| 1573 | |
| 1574 // Declare variable to hold root of expansion | |
| 1575 fprintf(fp," MachNode *result = NULL;\n"); | |
| 1576 | |
| 1577 // Iterate over the instructions 'node' expands into | |
| 1578 ExpandRule *expand = node->_exprule; | |
| 1579 NameAndList *expand_instr = NULL; | |
| 1580 for(expand->reset_instructions(); | |
| 1581 (expand_instr = expand->iter_instructions()) != NULL; cnt++) { | |
| 1582 new_id = expand_instr->name(); | |
| 1583 | |
| 1584 InstructForm* expand_instruction = (InstructForm*)globalAD->globalNames()[new_id]; | |
| 1585 if (expand_instruction->has_temps()) { | |
| 1586 globalAD->syntax_err(node->_linenum, "In %s: expand rules using instructs with TEMPs aren't supported: %s", | |
| 1587 node->_ident, new_id); | |
| 1588 } | |
| 1589 | |
| 1590 // Build the node for the instruction | |
| 1591 fprintf(fp,"\n %sNode *n%d = new (C) %sNode();\n", new_id, cnt, new_id); | |
| 1592 // Add control edge for this node | |
| 1593 fprintf(fp," n%d->add_req(_in[0]);\n", cnt); | |
| 1594 // Build the operand for the value this node defines. | |
| 1595 Form *form = (Form*)_globalNames[new_id]; | |
| 1596 assert( form, "'new_id' must be a defined form name"); | |
| 1597 // Grab the InstructForm for the new instruction | |
| 1598 new_inst = form->is_instruction(); | |
| 1599 assert( new_inst, "'new_id' must be an instruction name"); | |
| 1600 if( node->is_ideal_if() && new_inst->is_ideal_if() ) { | |
| 1601 fprintf(fp, " ((MachIfNode*)n%d)->_prob = _prob;\n",cnt); | |
| 1602 fprintf(fp, " ((MachIfNode*)n%d)->_fcnt = _fcnt;\n",cnt); | |
| 1603 } | |
| 1604 | |
| 1605 if( node->is_ideal_fastlock() && new_inst->is_ideal_fastlock() ) { | |
| 1606 fprintf(fp, " ((MachFastLockNode*)n%d)->_counters = _counters;\n",cnt); | |
| 1607 } | |
| 1608 | |
| 1609 const char *resultOper = new_inst->reduce_result(); | |
| 1610 fprintf(fp," n%d->set_opnd_array(0, state->MachOperGenerator( %s, C ));\n", | |
| 1611 cnt, machOperEnum(resultOper)); | |
| 1612 | |
| 1613 // get the formal operand NameList | |
| 1614 NameList *formal_lst = &new_inst->_parameters; | |
| 1615 formal_lst->reset(); | |
| 1616 | |
| 1617 // Handle any memory operand | |
| 1618 int memory_operand = new_inst->memory_operand(_globalNames); | |
| 1619 if( memory_operand != InstructForm::NO_MEMORY_OPERAND ) { | |
| 1620 int node_mem_op = node->memory_operand(_globalNames); | |
| 1621 assert( node_mem_op != InstructForm::NO_MEMORY_OPERAND, | |
| 1622 "expand rule member needs memory but top-level inst doesn't have any" ); | |
| 1203 | 1623 if (has_memory_edge) { |
|
113
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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changeset
|
1624 // Copy memory edge |
| 1203 | 1625 fprintf(fp," if (mem != (Node*)1) {\n"); |
| 1626 fprintf(fp," n%d->add_req(_in[1]);\t// Add memory edge\n", cnt); | |
| 1627 fprintf(fp," }\n"); | |
|
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|
1628 } |
| 0 | 1629 } |
| 1630 | |
| 1631 // Iterate over the new instruction's operands | |
|
415
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|
1632 int prev_pos = -1; |
| 0 | 1633 for( expand_instr->reset(); (opid = expand_instr->iter()) != NULL; ) { |
| 1634 // Use 'parameter' at current position in list of new instruction's formals | |
| 1635 // instead of 'opid' when looking up info internal to new_inst | |
| 1636 const char *parameter = formal_lst->iter(); | |
| 1637 // Check for an operand which is created in the expand rule | |
| 1638 if ((exp_pos = node->_exprule->_newopers.index(opid)) != -1) { | |
| 1639 new_pos = new_inst->operand_position(parameter,Component::USE); | |
| 1640 exp_pos += node->num_opnds(); | |
| 1641 // If there is no use of the created operand, just skip it | |
| 1642 if (new_pos != -1) { | |
| 1643 //Copy the operand from the original made above | |
| 1644 fprintf(fp," n%d->set_opnd_array(%d, op%d->clone(C)); // %s\n", | |
| 1645 cnt, new_pos, exp_pos-node->num_opnds(), opid); | |
| 1646 // Check for who defines this operand & add edge if needed | |
| 1647 fprintf(fp," if(tmp%d != NULL)\n", exp_pos); | |
| 1648 fprintf(fp," n%d->add_req(tmp%d);\n", cnt, exp_pos); | |
| 1649 } | |
| 1650 } | |
| 1651 else { | |
| 1652 // Use operand name to get an index into instruction component list | |
| 1653 // ins = (InstructForm *) _globalNames[new_id]; | |
| 1654 exp_pos = node->operand_position_format(opid); | |
| 1655 assert(exp_pos != -1, "Bad expand rule"); | |
|
415
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|
1656 if (prev_pos > exp_pos && expand_instruction->_matrule != NULL) { |
|
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|
1657 // For the add_req calls below to work correctly they need |
|
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|
1658 // to added in the same order that a match would add them. |
|
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|
1659 // This means that they would need to be in the order of |
|
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|
1660 // the components list instead of the formal parameters. |
|
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|
1661 // This is a sort of hidden invariant that previously |
|
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|
1662 // wasn't checked and could lead to incorrectly |
|
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|
1663 // constructed nodes. |
|
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parents:
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|
1664 syntax_err(node->_linenum, "For expand in %s to work, parameter declaration order in %s must follow matchrule\n", |
|
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|
1665 node->_ident, new_inst->_ident); |
|
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|
1666 } |
|
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|
1667 prev_pos = exp_pos; |
| 0 | 1668 |
| 1669 new_pos = new_inst->operand_position(parameter,Component::USE); | |
| 1670 if (new_pos != -1) { | |
| 1671 // Copy the operand from the ExpandNode to the new node | |
| 1672 fprintf(fp," n%d->set_opnd_array(%d, opnd_array(%d)->clone(C)); // %s\n", | |
| 1673 cnt, new_pos, exp_pos, opid); | |
| 1674 // For each operand add appropriate input edges by looking at tmp's | |
| 1675 fprintf(fp," if(tmp%d == this) {\n", exp_pos); | |
| 1676 // Grab corresponding edges from ExpandNode and insert them here | |
| 1677 fprintf(fp," for(unsigned i = 0; i < num%d; i++) {\n", exp_pos); | |
| 1678 fprintf(fp," n%d->add_req(_in[i + idx%d]);\n", cnt, exp_pos); | |
| 1679 fprintf(fp," }\n"); | |
| 1680 fprintf(fp," }\n"); | |
| 1681 // This value is generated by one of the new instructions | |
| 1682 fprintf(fp," else n%d->add_req(tmp%d);\n", cnt, exp_pos); | |
| 1683 } | |
| 1684 } | |
| 1685 | |
| 1686 // Update the DAG tmp's for values defined by this instruction | |
| 1687 int new_def_pos = new_inst->operand_position(parameter,Component::DEF); | |
| 1688 Effect *eform = (Effect *)new_inst->_effects[parameter]; | |
| 1689 // If this operand is a definition in either an effects rule | |
| 1690 // or a match rule | |
| 1691 if((eform) && (is_def(eform->_use_def))) { | |
| 1692 // Update the temp associated with this operand | |
| 1693 fprintf(fp," tmp%d = n%d;\n", exp_pos, cnt); | |
| 1694 } | |
| 1695 else if( new_def_pos != -1 ) { | |
| 1696 // Instruction defines a value but user did not declare it | |
| 1697 // in the 'effect' clause | |
| 1698 fprintf(fp," tmp%d = n%d;\n", exp_pos, cnt); | |
| 1699 } | |
| 1700 } // done iterating over a new instruction's operands | |
| 1701 | |
| 1702 // Invoke Expand() for the newly created instruction. | |
| 1203 | 1703 fprintf(fp," result = n%d->Expand( state, proj_list, mem );\n", cnt); |
| 0 | 1704 assert( !new_inst->expands(), "Do not have complete support for recursive expansion"); |
| 1705 } // done iterating over new instructions | |
| 1706 fprintf(fp,"\n"); | |
| 1707 } // done generating expand rule | |
| 1708 | |
|
2254
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1709 // Generate projections for instruction's additional DEFs and KILLs |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1710 if( ! node->expands() && (node->needs_projections() || node->has_temps())) { |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1711 // Get string representing the MachNode that projections point at |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1712 const char *machNode = "this"; |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1713 // Generate the projections |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1714 fprintf(fp," // Add projection edges for additional defs or kills\n"); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1715 |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
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2008
diff
changeset
|
1716 // Examine each component to see if it is a DEF or KILL |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1717 node->_components.reset(); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1718 // Skip the first component, if already handled as (SET dst (...)) |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1719 Component *comp = NULL; |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1720 // For kills, the choice of projection numbers is arbitrary |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1721 int proj_no = 1; |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1722 bool declared_def = false; |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1723 bool declared_kill = false; |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1724 |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1725 while( (comp = node->_components.iter()) != NULL ) { |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1726 // Lookup register class associated with operand type |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1727 Form *form = (Form*)_globalNames[comp->_type]; |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1728 assert( form, "component type must be a defined form"); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1729 OperandForm *op = form->is_operand(); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1730 |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1731 if (comp->is(Component::TEMP)) { |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1732 fprintf(fp, " // TEMP %s\n", comp->_name); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1733 if (!declared_def) { |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1734 // Define the variable "def" to hold new MachProjNodes |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1735 fprintf(fp, " MachTempNode *def;\n"); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1736 declared_def = true; |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1737 } |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1738 if (op && op->_interface && op->_interface->is_RegInterface()) { |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1739 fprintf(fp," def = new (C) MachTempNode(state->MachOperGenerator( %s, C ));\n", |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1740 machOperEnum(op->_ident)); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1741 fprintf(fp," add_req(def);\n"); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1742 // The operand for TEMP is already constructed during |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1743 // this mach node construction, see buildMachNode(). |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1744 // |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1745 // int idx = node->operand_position_format(comp->_name); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1746 // fprintf(fp," set_opnd_array(%d, state->MachOperGenerator( %s, C ));\n", |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1747 // idx, machOperEnum(op->_ident)); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1748 } else { |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1749 assert(false, "can't have temps which aren't registers"); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1750 } |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1751 } else if (comp->isa(Component::KILL)) { |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1752 fprintf(fp, " // DEF/KILL %s\n", comp->_name); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1753 |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1754 if (!declared_kill) { |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1755 // Define the variable "kill" to hold new MachProjNodes |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1756 fprintf(fp, " MachProjNode *kill;\n"); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1757 declared_kill = true; |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1758 } |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1759 |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1760 assert( op, "Support additional KILLS for base operands"); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1761 const char *regmask = reg_mask(*op); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1762 const char *ideal_type = op->ideal_type(_globalNames, _register); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1763 |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1764 if (!op->is_bound_register()) { |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1765 syntax_err(node->_linenum, "In %s only bound registers can be killed: %s %s\n", |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1766 node->_ident, comp->_type, comp->_name); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1767 } |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1768 |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1769 fprintf(fp," kill = "); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1770 fprintf(fp,"new (C, 1) MachProjNode( %s, %d, (%s), Op_%s );\n", |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1771 machNode, proj_no++, regmask, ideal_type); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1772 fprintf(fp," proj_list.push(kill);\n"); |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1773 } |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1774 } |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1775 } |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1776 |
|
ab42c7e1cf83
7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
kvn
parents:
2008
diff
changeset
|
1777 if( !node->expands() && node->_matrule != NULL ) { |
| 0 | 1778 // Remove duplicated operands and inputs which use the same name. |
| 1779 // Seach through match operands for the same name usage. | |
| 1780 uint cur_num_opnds = node->num_opnds(); | |
| 1781 if( cur_num_opnds > 1 && cur_num_opnds != node->num_unique_opnds() ) { | |
| 1782 Component *comp = NULL; | |
| 1783 // Build mapping from num_edges to local variables | |
| 1784 fprintf(fp," unsigned num0 = 0;\n"); | |
| 1785 for( i = 1; i < cur_num_opnds; i++ ) { | |
| 1786 fprintf(fp," unsigned num%d = opnd_array(%d)->num_edges();\n",i,i); | |
| 1787 } | |
| 1788 // Build a mapping from operand index to input edges | |
| 1789 fprintf(fp," unsigned idx0 = oper_input_base();\n"); | |
| 1790 for( i = 0; i < cur_num_opnds; i++ ) { | |
| 1791 fprintf(fp," unsigned idx%d = idx%d + num%d;\n", | |
| 1792 i+1,i,i); | |
| 1793 } | |
| 1794 | |
| 1795 uint new_num_opnds = 1; | |
| 1796 node->_components.reset(); | |
| 1797 // Skip first unique operands. | |
| 1798 for( i = 1; i < cur_num_opnds; i++ ) { | |
| 1799 comp = node->_components.iter(); | |
| 1800 if( (int)i != node->unique_opnds_idx(i) ) { | |
| 1801 break; | |
| 1802 } | |
| 1803 new_num_opnds++; | |
| 1804 } | |
| 1805 // Replace not unique operands with next unique operands. | |
| 1806 for( ; i < cur_num_opnds; i++ ) { | |
| 1807 comp = node->_components.iter(); | |
| 1808 int j = node->unique_opnds_idx(i); | |
| 1809 // unique_opnds_idx(i) is unique if unique_opnds_idx(j) is not unique. | |
| 1810 if( j != node->unique_opnds_idx(j) ) { | |
| 1811 fprintf(fp," set_opnd_array(%d, opnd_array(%d)->clone(C)); // %s\n", | |
| 1812 new_num_opnds, i, comp->_name); | |
| 1813 // delete not unique edges here | |
| 1814 fprintf(fp," for(unsigned i = 0; i < num%d; i++) {\n", i); | |
| 1815 fprintf(fp," set_req(i + idx%d, _in[i + idx%d]);\n", new_num_opnds, i); | |
| 1816 fprintf(fp," }\n"); | |
| 1817 fprintf(fp," num%d = num%d;\n", new_num_opnds, i); | |
| 1818 fprintf(fp," idx%d = idx%d + num%d;\n", new_num_opnds+1, new_num_opnds, new_num_opnds); | |
| 1819 new_num_opnds++; | |
| 1820 } | |
| 1821 } | |
| 1822 // delete the rest of edges | |
| 1823 fprintf(fp," for(int i = idx%d - 1; i >= (int)idx%d; i--) {\n", cur_num_opnds, new_num_opnds); | |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
415
diff
changeset
|
1824 fprintf(fp," del_req(i);\n"); |
| 0 | 1825 fprintf(fp," }\n"); |
| 1826 fprintf(fp," _num_opnds = %d;\n", new_num_opnds); | |
| 785 | 1827 assert(new_num_opnds == node->num_unique_opnds(), "what?"); |
| 0 | 1828 } |
| 1829 } | |
| 1830 | |
| 2008 | 1831 // If the node is a MachConstantNode, insert the MachConstantBaseNode edge. |
| 1832 // NOTE: this edge must be the last input (see MachConstantNode::mach_constant_base_node_input). | |
| 1833 if (node->is_mach_constant()) { | |
| 1834 fprintf(fp," add_req(C->mach_constant_base_node());\n"); | |
| 1835 } | |
| 1836 | |
| 0 | 1837 fprintf(fp,"\n"); |
| 1838 if( node->expands() ) { | |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
415
diff
changeset
|
1839 fprintf(fp," return result;\n"); |
| 0 | 1840 } else { |
| 1841 fprintf(fp," return this;\n"); | |
| 1842 } | |
| 1843 fprintf(fp,"}\n"); | |
| 1844 fprintf(fp,"\n"); | |
| 1845 } | |
| 1846 | |
| 1847 | |
| 1848 //------------------------------Emit Routines---------------------------------- | |
| 1849 // Special classes and routines for defining node emit routines which output | |
| 1850 // target specific instruction object encodings. | |
| 1851 // Define the ___Node::emit() routine | |
| 1852 // | |
| 1853 // (1) void ___Node::emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const { | |
| 1854 // (2) // ... encoding defined by user | |
| 1855 // (3) | |
| 1856 // (4) } | |
| 1857 // | |
| 1858 | |
| 1859 class DefineEmitState { | |
| 1860 private: | |
| 1861 enum reloc_format { RELOC_NONE = -1, | |
| 1862 RELOC_IMMEDIATE = 0, | |
| 1863 RELOC_DISP = 1, | |
| 1864 RELOC_CALL_DISP = 2 }; | |
| 1865 enum literal_status{ LITERAL_NOT_SEEN = 0, | |
| 1866 LITERAL_SEEN = 1, | |
| 1867 LITERAL_ACCESSED = 2, | |
| 1868 LITERAL_OUTPUT = 3 }; | |
| 1869 // Temporaries that describe current operand | |
| 1870 bool _cleared; | |
| 1871 OpClassForm *_opclass; | |
| 1872 OperandForm *_operand; | |
| 1873 int _operand_idx; | |
| 1874 const char *_local_name; | |
| 1875 const char *_operand_name; | |
| 1876 bool _doing_disp; | |
| 1877 bool _doing_constant; | |
| 1878 Form::DataType _constant_type; | |
| 1879 DefineEmitState::literal_status _constant_status; | |
| 1880 DefineEmitState::literal_status _reg_status; | |
| 1881 bool _doing_emit8; | |
| 1882 bool _doing_emit_d32; | |
| 1883 bool _doing_emit_d16; | |
| 1884 bool _doing_emit_hi; | |
| 1885 bool _doing_emit_lo; | |
| 1886 bool _may_reloc; | |
| 1887 bool _must_reloc; | |
| 1888 reloc_format _reloc_form; | |
| 1889 const char * _reloc_type; | |
| 1890 bool _processing_noninput; | |
| 1891 | |
| 1892 NameList _strings_to_emit; | |
| 1893 | |
| 1894 // Stable state, set by constructor | |
| 1895 ArchDesc &_AD; | |
| 1896 FILE *_fp; | |
| 1897 EncClass &_encoding; | |
| 1898 InsEncode &_ins_encode; | |
| 1899 InstructForm &_inst; | |
| 1900 | |
| 1901 public: | |
| 1902 DefineEmitState(FILE *fp, ArchDesc &AD, EncClass &encoding, | |
| 1903 InsEncode &ins_encode, InstructForm &inst) | |
| 1904 : _AD(AD), _fp(fp), _encoding(encoding), _ins_encode(ins_encode), _inst(inst) { | |
| 1905 clear(); | |
| 1906 } | |
| 1907 | |
| 1908 void clear() { | |
| 1909 _cleared = true; | |
| 1910 _opclass = NULL; | |
| 1911 _operand = NULL; | |
| 1912 _operand_idx = 0; | |
| 1913 _local_name = ""; | |
| 1914 _operand_name = ""; | |
| 1915 _doing_disp = false; | |
| 1916 _doing_constant= false; | |
| 1917 _constant_type = Form::none; | |
| 1918 _constant_status = LITERAL_NOT_SEEN; | |
| 1919 _reg_status = LITERAL_NOT_SEEN; | |
| 1920 _doing_emit8 = false; | |
| 1921 _doing_emit_d32= false; | |
| 1922 _doing_emit_d16= false; | |
| 1923 _doing_emit_hi = false; | |
| 1924 _doing_emit_lo = false; | |
| 1925 _may_reloc = false; | |
| 1926 _must_reloc = false; | |
| 1927 _reloc_form = RELOC_NONE; | |
| 1928 _reloc_type = AdlcVMDeps::none_reloc_type(); | |
| 1929 _strings_to_emit.clear(); | |
| 1930 } | |
| 1931 | |
| 1932 // Track necessary state when identifying a replacement variable | |
| 1933 void update_state(const char *rep_var) { | |
| 1934 // A replacement variable or one of its subfields | |
| 1935 // Obtain replacement variable from list | |
| 1936 if ( (*rep_var) != '$' ) { | |
| 1937 // A replacement variable, '$' prefix | |
| 1938 // check_rep_var( rep_var ); | |
| 1939 if ( Opcode::as_opcode_type(rep_var) != Opcode::NOT_AN_OPCODE ) { | |
| 1940 // No state needed. | |
| 1941 assert( _opclass == NULL, | |
| 1942 "'primary', 'secondary' and 'tertiary' don't follow operand."); | |
| 2008 | 1943 } |
| 1944 else if ((strcmp(rep_var, "constanttablebase") == 0) || | |
| 1945 (strcmp(rep_var, "constantoffset") == 0) || | |
| 1946 (strcmp(rep_var, "constantaddress") == 0)) { | |
| 1947 if (!_inst.is_mach_constant()) { | |
| 1948 _AD.syntax_err(_encoding._linenum, | |
| 1949 "Replacement variable %s not allowed in instruct %s (only in MachConstantNode).\n", | |
| 1950 rep_var, _encoding._name); | |
| 1951 } | |
| 1952 } | |
| 1953 else { | |
| 0 | 1954 // Lookup its position in parameter list |
| 1955 int param_no = _encoding.rep_var_index(rep_var); | |
| 1956 if ( param_no == -1 ) { | |
| 1957 _AD.syntax_err( _encoding._linenum, | |
| 1958 "Replacement variable %s not found in enc_class %s.\n", | |
| 1959 rep_var, _encoding._name); | |
| 1960 } | |
| 1961 | |
| 1962 // Lookup the corresponding ins_encode parameter | |
| 1963 const char *inst_rep_var = _ins_encode.rep_var_name(_inst, param_no); | |
| 1964 if (inst_rep_var == NULL) { | |
| 1965 _AD.syntax_err( _ins_encode._linenum, | |
| 1966 "Parameter %s not passed to enc_class %s from instruct %s.\n", | |
| 1967 rep_var, _encoding._name, _inst._ident); | |
| 1968 } | |
| 1969 | |
| 1970 // Check if instruction's actual parameter is a local name in the instruction | |
| 1971 const Form *local = _inst._localNames[inst_rep_var]; | |
| 1972 OpClassForm *opc = (local != NULL) ? local->is_opclass() : NULL; | |
| 1973 // Note: assert removed to allow constant and symbolic parameters | |
| 1974 // assert( opc, "replacement variable was not found in local names"); | |
| 1975 // Lookup the index position iff the replacement variable is a localName | |
| 1976 int idx = (opc != NULL) ? _inst.operand_position_format(inst_rep_var) : -1; | |
| 1977 | |
| 1978 if ( idx != -1 ) { | |
| 1979 // This is a local in the instruction | |
| 1980 // Update local state info. | |
| 1981 _opclass = opc; | |
| 1982 _operand_idx = idx; | |
| 1983 _local_name = rep_var; | |
| 1984 _operand_name = inst_rep_var; | |
| 1985 | |
| 1986 // !!!!! | |
| 1987 // Do not support consecutive operands. | |
| 1988 assert( _operand == NULL, "Unimplemented()"); | |
| 1989 _operand = opc->is_operand(); | |
| 1990 } | |
| 1991 else if( ADLParser::is_literal_constant(inst_rep_var) ) { | |
| 1992 // Instruction provided a constant expression | |
| 1993 // Check later that encoding specifies $$$constant to resolve as constant | |
| 1994 _constant_status = LITERAL_SEEN; | |
| 1995 } | |
| 1996 else if( Opcode::as_opcode_type(inst_rep_var) != Opcode::NOT_AN_OPCODE ) { | |
| 1997 // Instruction provided an opcode: "primary", "secondary", "tertiary" | |
| 1998 // Check later that encoding specifies $$$constant to resolve as constant | |
| 1999 _constant_status = LITERAL_SEEN; | |
| 2000 } | |
| 2001 else if((_AD.get_registers() != NULL ) && (_AD.get_registers()->getRegDef(inst_rep_var) != NULL)) { | |
| 2002 // Instruction provided a literal register name for this parameter | |
| 2003 // Check that encoding specifies $$$reg to resolve.as register. | |
| 2004 _reg_status = LITERAL_SEEN; | |
| 2005 } | |
| 2006 else { | |
| 2007 // Check for unimplemented functionality before hard failure | |
| 2008 assert( strcmp(opc->_ident,"label")==0, "Unimplemented() Label"); | |
| 2009 assert( false, "ShouldNotReachHere()"); | |
| 2010 } | |
| 2011 } // done checking which operand this is. | |
| 2012 } else { | |
| 2013 // | |
| 2014 // A subfield variable, '$$' prefix | |
| 2015 // Check for fields that may require relocation information. | |
| 2016 // Then check that literal register parameters are accessed with 'reg' or 'constant' | |
| 2017 // | |
| 2018 if ( strcmp(rep_var,"$disp") == 0 ) { | |
| 2019 _doing_disp = true; | |
| 2020 assert( _opclass, "Must use operand or operand class before '$disp'"); | |
| 2021 if( _operand == NULL ) { | |
| 2022 // Only have an operand class, generate run-time check for relocation | |
| 2023 _may_reloc = true; | |
| 2024 _reloc_form = RELOC_DISP; | |
| 2025 _reloc_type = AdlcVMDeps::oop_reloc_type(); | |
| 2026 } else { | |
| 2027 // Do precise check on operand: is it a ConP or not | |
| 2028 // | |
| 2029 // Check interface for value of displacement | |
| 2030 assert( ( _operand->_interface != NULL ), | |
| 2031 "$disp can only follow memory interface operand"); | |
| 2032 MemInterface *mem_interface= _operand->_interface->is_MemInterface(); | |
| 2033 assert( mem_interface != NULL, | |
| 2034 "$disp can only follow memory interface operand"); | |
| 2035 const char *disp = mem_interface->_disp; | |
| 2036 | |
| 2037 if( disp != NULL && (*disp == '$') ) { | |
| 2038 // MemInterface::disp contains a replacement variable, | |
| 2039 // Check if this matches a ConP | |
| 2040 // | |
| 2041 // Lookup replacement variable, in operand's component list | |
| 2042 const char *rep_var_name = disp + 1; // Skip '$' | |
| 2043 const Component *comp = _operand->_components.search(rep_var_name); | |
| 2044 assert( comp != NULL,"Replacement variable not found in components"); | |
| 2045 const char *type = comp->_type; | |
| 2046 // Lookup operand form for replacement variable's type | |
| 2047 const Form *form = _AD.globalNames()[type]; | |
| 2048 assert( form != NULL, "Replacement variable's type not found"); | |
| 2049 OperandForm *op = form->is_operand(); | |
| 2050 assert( op, "Attempting to emit a non-register or non-constant"); | |
| 2051 // Check if this is a constant | |
| 2052 if (op->_matrule && op->_matrule->is_base_constant(_AD.globalNames())) { | |
| 2053 // Check which constant this name maps to: _c0, _c1, ..., _cn | |
| 2054 // const int idx = _operand.constant_position(_AD.globalNames(), comp); | |
| 2055 // assert( idx != -1, "Constant component not found in operand"); | |
| 2056 Form::DataType dtype = op->is_base_constant(_AD.globalNames()); | |
| 2057 if ( dtype == Form::idealP ) { | |
| 2058 _may_reloc = true; | |
| 2059 // No longer true that idealP is always an oop | |
| 2060 _reloc_form = RELOC_DISP; | |
| 2061 _reloc_type = AdlcVMDeps::oop_reloc_type(); | |
| 2062 } | |
| 2063 } | |
| 2064 | |
| 2065 else if( _operand->is_user_name_for_sReg() != Form::none ) { | |
| 2066 // The only non-constant allowed access to disp is an operand sRegX in a stackSlotX | |
| 2067 assert( op->ideal_to_sReg_type(type) != Form::none, "StackSlots access displacements using 'sRegs'"); | |
| 2068 _may_reloc = false; | |
| 2069 } else { | |
| 2070 assert( false, "fatal(); Only stackSlots can access a non-constant using 'disp'"); | |
| 2071 } | |
| 2072 } | |
| 2073 } // finished with precise check of operand for relocation. | |
| 2074 } // finished with subfield variable | |
| 2075 else if ( strcmp(rep_var,"$constant") == 0 ) { | |
| 2076 _doing_constant = true; | |
| 2077 if ( _constant_status == LITERAL_NOT_SEEN ) { | |
| 2078 // Check operand for type of constant | |
| 2079 assert( _operand, "Must use operand before '$$constant'"); | |
| 2080 Form::DataType dtype = _operand->is_base_constant(_AD.globalNames()); | |
| 2081 _constant_type = dtype; | |
| 2082 if ( dtype == Form::idealP ) { | |
| 2083 _may_reloc = true; | |
| 2084 // No longer true that idealP is always an oop | |
| 2085 // // _must_reloc = true; | |
| 2086 _reloc_form = RELOC_IMMEDIATE; | |
| 2087 _reloc_type = AdlcVMDeps::oop_reloc_type(); | |
| 2088 } else { | |
| 2089 // No relocation information needed | |
| 2090 } | |
| 2091 } else { | |
| 2092 // User-provided literals may not require relocation information !!!!! | |
| 2093 assert( _constant_status == LITERAL_SEEN, "Must know we are processing a user-provided literal"); | |
| 2094 } | |
| 2095 } | |
| 2096 else if ( strcmp(rep_var,"$label") == 0 ) { | |
| 2097 // Calls containing labels require relocation | |
| 2098 if ( _inst.is_ideal_call() ) { | |
| 2099 _may_reloc = true; | |
| 2100 // !!!!! !!!!! | |
| 2101 _reloc_type = AdlcVMDeps::none_reloc_type(); | |
| 2102 } | |
| 2103 } | |
| 2104 | |
| 2105 // literal register parameter must be accessed as a 'reg' field. | |
| 2106 if ( _reg_status != LITERAL_NOT_SEEN ) { | |
| 2107 assert( _reg_status == LITERAL_SEEN, "Must have seen register literal before now"); | |
| 2108 if (strcmp(rep_var,"$reg") == 0 || reg_conversion(rep_var) != NULL) { | |
| 2109 _reg_status = LITERAL_ACCESSED; | |
| 2110 } else { | |
| 2111 assert( false, "invalid access to literal register parameter"); | |
| 2112 } | |
| 2113 } | |
| 2114 // literal constant parameters must be accessed as a 'constant' field | |
| 2115 if ( _constant_status != LITERAL_NOT_SEEN ) { | |
| 2116 assert( _constant_status == LITERAL_SEEN, "Must have seen constant literal before now"); | |
| 2117 if( strcmp(rep_var,"$constant") == 0 ) { | |
| 2118 _constant_status = LITERAL_ACCESSED; | |
| 2119 } else { | |
| 2120 assert( false, "invalid access to literal constant parameter"); | |
| 2121 } | |
| 2122 } | |
| 2123 } // end replacement and/or subfield | |
| 2124 | |
| 2125 } | |
| 2126 | |
| 2127 void add_rep_var(const char *rep_var) { | |
| 2128 // Handle subfield and replacement variables. | |
| 2129 if ( ( *rep_var == '$' ) && ( *(rep_var+1) == '$' ) ) { | |
| 2130 // Check for emit prefix, '$$emit32' | |
| 2131 assert( _cleared, "Can not nest $$$emit32"); | |
| 2132 if ( strcmp(rep_var,"$$emit32") == 0 ) { | |
| 2133 _doing_emit_d32 = true; | |
| 2134 } | |
| 2135 else if ( strcmp(rep_var,"$$emit16") == 0 ) { | |
| 2136 _doing_emit_d16 = true; | |
| 2137 } | |
| 2138 else if ( strcmp(rep_var,"$$emit_hi") == 0 ) { | |
| 2139 _doing_emit_hi = true; | |
| 2140 } | |
| 2141 else if ( strcmp(rep_var,"$$emit_lo") == 0 ) { | |
| 2142 _doing_emit_lo = true; | |
| 2143 } | |
| 2144 else if ( strcmp(rep_var,"$$emit8") == 0 ) { | |
| 2145 _doing_emit8 = true; | |
| 2146 } | |
| 2147 else { | |
| 2148 _AD.syntax_err(_encoding._linenum, "Unsupported $$operation '%s'\n",rep_var); | |
| 2149 assert( false, "fatal();"); | |
| 2150 } | |
| 2151 } | |
| 2152 else { | |
| 2153 // Update state for replacement variables | |
| 2154 update_state( rep_var ); | |
| 2155 _strings_to_emit.addName(rep_var); | |
| 2156 } | |
| 2157 _cleared = false; | |
| 2158 } | |
| 2159 | |
| 2160 void emit_replacement() { | |
| 2161 // A replacement variable or one of its subfields | |
| 2162 // Obtain replacement variable from list | |
| 2163 // const char *ec_rep_var = encoding->_rep_vars.iter(); | |
| 2164 const char *rep_var; | |
| 2165 _strings_to_emit.reset(); | |
| 2166 while ( (rep_var = _strings_to_emit.iter()) != NULL ) { | |
| 2167 | |
| 2168 if ( (*rep_var) == '$' ) { | |
| 2169 // A subfield variable, '$$' prefix | |
| 2170 emit_field( rep_var ); | |
| 2171 } else { | |
| 624 | 2172 if (_strings_to_emit.peek() != NULL && |
| 2173 strcmp(_strings_to_emit.peek(), "$Address") == 0) { | |
| 2174 fprintf(_fp, "Address::make_raw("); | |
| 2175 | |
| 2176 emit_rep_var( rep_var ); | |
| 2177 fprintf(_fp,"->base(ra_,this,idx%d), ", _operand_idx); | |
| 2178 | |
| 2179 _reg_status = LITERAL_ACCESSED; | |
| 2180 emit_rep_var( rep_var ); | |
| 2181 fprintf(_fp,"->index(ra_,this,idx%d), ", _operand_idx); | |
| 2182 | |
| 2183 _reg_status = LITERAL_ACCESSED; | |
| 2184 emit_rep_var( rep_var ); | |
| 2185 fprintf(_fp,"->scale(), "); | |
| 2186 | |
| 2187 _reg_status = LITERAL_ACCESSED; | |
| 2188 emit_rep_var( rep_var ); | |
| 2189 Form::DataType stack_type = _operand ? _operand->is_user_name_for_sReg() : Form::none; | |
| 2190 if( _operand && _operand_idx==0 && stack_type != Form::none ) { | |
| 2191 fprintf(_fp,"->disp(ra_,this,0), "); | |
| 2192 } else { | |
| 2193 fprintf(_fp,"->disp(ra_,this,idx%d), ", _operand_idx); | |
| 2194 } | |
| 2195 | |
| 2196 _reg_status = LITERAL_ACCESSED; | |
| 2197 emit_rep_var( rep_var ); | |
| 2198 fprintf(_fp,"->disp_is_oop())"); | |
| 2199 | |
| 2200 // skip trailing $Address | |
| 2201 _strings_to_emit.iter(); | |
| 2202 } else { | |
| 2203 // A replacement variable, '$' prefix | |
| 2204 const char* next = _strings_to_emit.peek(); | |
| 2205 const char* next2 = _strings_to_emit.peek(2); | |
| 2206 if (next != NULL && next2 != NULL && strcmp(next2, "$Register") == 0 && | |
| 2207 (strcmp(next, "$base") == 0 || strcmp(next, "$index") == 0)) { | |
| 2208 // handle $rev_var$$base$$Register and $rev_var$$index$$Register by | |
| 2209 // producing as_Register(opnd_array(#)->base(ra_,this,idx1)). | |
| 2210 fprintf(_fp, "as_Register("); | |
| 2211 // emit the operand reference | |
| 2212 emit_rep_var( rep_var ); | |
| 2213 rep_var = _strings_to_emit.iter(); | |
| 2214 assert(strcmp(rep_var, "$base") == 0 || strcmp(rep_var, "$index") == 0, "bad pattern"); | |
| 2215 // handle base or index | |
| 2216 emit_field(rep_var); | |
| 2217 rep_var = _strings_to_emit.iter(); | |
| 2218 assert(strcmp(rep_var, "$Register") == 0, "bad pattern"); | |
| 2219 // close up the parens | |
| 2220 fprintf(_fp, ")"); | |
| 2221 } else { | |
| 2222 emit_rep_var( rep_var ); | |
| 2223 } | |
| 2224 } | |
| 0 | 2225 } // end replacement and/or subfield |
| 2226 } | |
| 2227 } | |
| 2228 | |
| 2229 void emit_reloc_type(const char* type) { | |
| 2230 fprintf(_fp, "%s", type) | |
| 2231 ; | |
| 2232 } | |
| 2233 | |
| 2234 | |
| 2235 void gen_emit_x_reloc(const char *d32_lo_hi ) { | |
| 2236 fprintf(_fp,"emit_%s_reloc(cbuf, ", d32_lo_hi ); | |
| 2237 emit_replacement(); fprintf(_fp,", "); | |
| 2238 emit_reloc_type( _reloc_type ); fprintf(_fp,", "); | |
| 2239 fprintf(_fp, "%d", _reloc_form);fprintf(_fp, ");"); | |
| 2240 } | |
| 2241 | |
| 2242 | |
| 2243 void emit() { | |
| 2244 // | |
| 2245 // "emit_d32_reloc(" or "emit_hi_reloc" or "emit_lo_reloc" | |
| 2246 // | |
| 2247 // Emit the function name when generating an emit function | |
| 2248 if ( _doing_emit_d32 || _doing_emit_hi || _doing_emit_lo ) { | |
| 2249 const char *d32_hi_lo = _doing_emit_d32 ? "d32" : (_doing_emit_hi ? "hi" : "lo"); | |
| 2250 // In general, relocatable isn't known at compiler compile time. | |
| 2251 // Check results of prior scan | |
| 2252 if ( ! _may_reloc ) { | |
| 2253 // Definitely don't need relocation information | |
| 2254 fprintf( _fp, "emit_%s(cbuf, ", d32_hi_lo ); | |
| 2255 emit_replacement(); fprintf(_fp, ")"); | |
| 2256 } | |
| 2257 else if ( _must_reloc ) { | |
| 2258 // Must emit relocation information | |
| 2259 gen_emit_x_reloc( d32_hi_lo ); | |
| 2260 } | |
| 2261 else { | |
| 2262 // Emit RUNTIME CHECK to see if value needs relocation info | |
| 2263 // If emitting a relocatable address, use 'emit_d32_reloc' | |
| 2264 const char *disp_constant = _doing_disp ? "disp" : _doing_constant ? "constant" : "INVALID"; | |
| 2265 assert( (_doing_disp || _doing_constant) | |
| 2266 && !(_doing_disp && _doing_constant), | |
| 2267 "Must be emitting either a displacement or a constant"); | |
| 2268 fprintf(_fp,"\n"); | |
| 2269 fprintf(_fp,"if ( opnd_array(%d)->%s_is_oop() ) {\n", | |
| 2270 _operand_idx, disp_constant); | |
| 2271 fprintf(_fp," "); | |
| 2272 gen_emit_x_reloc( d32_hi_lo ); fprintf(_fp,"\n"); | |
| 2273 fprintf(_fp,"} else {\n"); | |
| 2274 fprintf(_fp," emit_%s(cbuf, ", d32_hi_lo); | |
| 2275 emit_replacement(); fprintf(_fp, ");\n"); fprintf(_fp,"}"); | |
| 2276 } | |
| 2277 } | |
| 2278 else if ( _doing_emit_d16 ) { | |
| 2279 // Relocation of 16-bit values is not supported | |
| 2280 fprintf(_fp,"emit_d16(cbuf, "); | |
| 2281 emit_replacement(); fprintf(_fp, ")"); | |
| 2282 // No relocation done for 16-bit values | |
| 2283 } | |
| 2284 else if ( _doing_emit8 ) { | |
| 2285 // Relocation of 8-bit values is not supported | |
| 2286 fprintf(_fp,"emit_d8(cbuf, "); | |
| 2287 emit_replacement(); fprintf(_fp, ")"); | |
| 2288 // No relocation done for 8-bit values | |
| 2289 } | |
| 2290 else { | |
| 2291 // Not an emit# command, just output the replacement string. | |
| 2292 emit_replacement(); | |
| 2293 } | |
| 2294 | |
| 2295 // Get ready for next state collection. | |
| 2296 clear(); | |
| 2297 } | |
| 2298 | |
| 2299 private: | |
| 2300 | |
| 2301 // recognizes names which represent MacroAssembler register types | |
| 2302 // and return the conversion function to build them from OptoReg | |
| 2303 const char* reg_conversion(const char* rep_var) { | |
| 2304 if (strcmp(rep_var,"$Register") == 0) return "as_Register"; | |
| 2305 if (strcmp(rep_var,"$FloatRegister") == 0) return "as_FloatRegister"; | |
| 2306 #if defined(IA32) || defined(AMD64) | |
| 2307 if (strcmp(rep_var,"$XMMRegister") == 0) return "as_XMMRegister"; | |
| 2308 #endif | |
| 2309 return NULL; | |
| 2310 } | |
| 2311 | |
| 2312 void emit_field(const char *rep_var) { | |
| 2313 const char* reg_convert = reg_conversion(rep_var); | |
| 2314 | |
| 2315 // A subfield variable, '$$subfield' | |
| 2316 if ( strcmp(rep_var, "$reg") == 0 || reg_convert != NULL) { | |
| 2317 // $reg form or the $Register MacroAssembler type conversions | |
| 2318 assert( _operand_idx != -1, | |
| 2319 "Must use this subfield after operand"); | |
| 2320 if( _reg_status == LITERAL_NOT_SEEN ) { | |
| 2321 if (_processing_noninput) { | |
| 2322 const Form *local = _inst._localNames[_operand_name]; | |
| 2323 OperandForm *oper = local->is_operand(); | |
| 2324 const RegDef* first = oper->get_RegClass()->find_first_elem(); | |
| 2325 if (reg_convert != NULL) { | |
| 2326 fprintf(_fp, "%s(%s_enc)", reg_convert, first->_regname); | |
| 2327 } else { | |
| 2328 fprintf(_fp, "%s_enc", first->_regname); | |
| 2329 } | |
| 2330 } else { | |
| 2331 fprintf(_fp,"->%s(ra_,this", reg_convert != NULL ? reg_convert : "reg"); | |
| 2332 // Add parameter for index position, if not result operand | |
| 2333 if( _operand_idx != 0 ) fprintf(_fp,",idx%d", _operand_idx); | |
| 2334 fprintf(_fp,")"); | |
| 2335 } | |
| 2336 } else { | |
| 2337 assert( _reg_status == LITERAL_OUTPUT, "should have output register literal in emit_rep_var"); | |
| 2338 // Register literal has already been sent to output file, nothing more needed | |
| 2339 } | |
| 2340 } | |
| 2341 else if ( strcmp(rep_var,"$base") == 0 ) { | |
| 2342 assert( _operand_idx != -1, | |
| 2343 "Must use this subfield after operand"); | |
| 2344 assert( ! _may_reloc, "UnImplemented()"); | |
| 2345 fprintf(_fp,"->base(ra_,this,idx%d)", _operand_idx); | |
| 2346 } | |
| 2347 else if ( strcmp(rep_var,"$index") == 0 ) { | |
| 2348 assert( _operand_idx != -1, | |
| 2349 "Must use this subfield after operand"); | |
| 2350 assert( ! _may_reloc, "UnImplemented()"); | |
| 2351 fprintf(_fp,"->index(ra_,this,idx%d)", _operand_idx); | |
| 2352 } | |
| 2353 else if ( strcmp(rep_var,"$scale") == 0 ) { | |
| 2354 assert( ! _may_reloc, "UnImplemented()"); | |
| 2355 fprintf(_fp,"->scale()"); | |
| 2356 } | |
| 2357 else if ( strcmp(rep_var,"$cmpcode") == 0 ) { | |
| 2358 assert( ! _may_reloc, "UnImplemented()"); | |
| 2359 fprintf(_fp,"->ccode()"); | |
| 2360 } | |
| 2361 else if ( strcmp(rep_var,"$constant") == 0 ) { | |
| 2362 if( _constant_status == LITERAL_NOT_SEEN ) { | |
| 2363 if ( _constant_type == Form::idealD ) { | |
| 2364 fprintf(_fp,"->constantD()"); | |
| 2365 } else if ( _constant_type == Form::idealF ) { | |
| 2366 fprintf(_fp,"->constantF()"); | |
| 2367 } else if ( _constant_type == Form::idealL ) { | |
| 2368 fprintf(_fp,"->constantL()"); | |
| 2369 } else { | |
| 2370 fprintf(_fp,"->constant()"); | |
| 2371 } | |
| 2372 } else { | |
| 2373 assert( _constant_status == LITERAL_OUTPUT, "should have output constant literal in emit_rep_var"); | |
| 2374 // Cosntant literal has already been sent to output file, nothing more needed | |
| 2375 } | |
| 2376 } | |
| 2377 else if ( strcmp(rep_var,"$disp") == 0 ) { | |
| 2378 Form::DataType stack_type = _operand ? _operand->is_user_name_for_sReg() : Form::none; | |
| 2379 if( _operand && _operand_idx==0 && stack_type != Form::none ) { | |
| 2380 fprintf(_fp,"->disp(ra_,this,0)"); | |
| 2381 } else { | |
| 2382 fprintf(_fp,"->disp(ra_,this,idx%d)", _operand_idx); | |
| 2383 } | |
| 2384 } | |
| 2385 else if ( strcmp(rep_var,"$label") == 0 ) { | |
| 2386 fprintf(_fp,"->label()"); | |
| 2387 } | |
| 2388 else if ( strcmp(rep_var,"$method") == 0 ) { | |
| 2389 fprintf(_fp,"->method()"); | |
| 2390 } | |
| 2391 else { | |
| 2392 printf("emit_field: %s\n",rep_var); | |
| 2393 assert( false, "UnImplemented()"); | |
| 2394 } | |
| 2395 } | |
| 2396 | |
| 2397 | |
| 2398 void emit_rep_var(const char *rep_var) { | |
| 2399 _processing_noninput = false; | |
| 2400 // A replacement variable, originally '$' | |
| 2401 if ( Opcode::as_opcode_type(rep_var) != Opcode::NOT_AN_OPCODE ) { | |
|
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2402 if (!_inst._opcode->print_opcode(_fp, Opcode::as_opcode_type(rep_var) )) { |
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2403 // Missing opcode |
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2404 _AD.syntax_err( _inst._linenum, |
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2405 "Missing $%s opcode definition in %s, used by encoding %s\n", |
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2406 rep_var, _inst._ident, _encoding._name); |
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2407 } |
| 0 | 2408 } |
| 2008 | 2409 else if (strcmp(rep_var, "constanttablebase") == 0) { |
| 2410 fprintf(_fp, "as_Register(ra_->get_encode(in(mach_constant_base_node_input())))"); | |
| 2411 } | |
| 2412 else if (strcmp(rep_var, "constantoffset") == 0) { | |
| 2413 fprintf(_fp, "constant_offset()"); | |
| 2414 } | |
| 2415 else if (strcmp(rep_var, "constantaddress") == 0) { | |
| 2416 fprintf(_fp, "InternalAddress(__ code()->consts()->start() + constant_offset())"); | |
| 2417 } | |
| 0 | 2418 else { |
| 2419 // Lookup its position in parameter list | |
| 2420 int param_no = _encoding.rep_var_index(rep_var); | |
| 2421 if ( param_no == -1 ) { | |
| 2422 _AD.syntax_err( _encoding._linenum, | |
| 2423 "Replacement variable %s not found in enc_class %s.\n", | |
| 2424 rep_var, _encoding._name); | |
| 2425 } | |
| 2426 // Lookup the corresponding ins_encode parameter | |
| 2427 const char *inst_rep_var = _ins_encode.rep_var_name(_inst, param_no); | |
| 2428 | |
| 2429 // Check if instruction's actual parameter is a local name in the instruction | |
| 2430 const Form *local = _inst._localNames[inst_rep_var]; | |
| 2431 OpClassForm *opc = (local != NULL) ? local->is_opclass() : NULL; | |
| 2432 // Note: assert removed to allow constant and symbolic parameters | |
| 2433 // assert( opc, "replacement variable was not found in local names"); | |
| 2434 // Lookup the index position iff the replacement variable is a localName | |
| 2435 int idx = (opc != NULL) ? _inst.operand_position_format(inst_rep_var) : -1; | |
| 2436 if( idx != -1 ) { | |
| 2437 if (_inst.is_noninput_operand(idx)) { | |
| 2438 // This operand isn't a normal input so printing it is done | |
| 2439 // specially. | |
| 2440 _processing_noninput = true; | |
| 2441 } else { | |
| 2442 // Output the emit code for this operand | |
| 2443 fprintf(_fp,"opnd_array(%d)",idx); | |
| 2444 } | |
| 2445 assert( _operand == opc->is_operand(), | |
| 2446 "Previous emit $operand does not match current"); | |
| 2447 } | |
| 2448 else if( ADLParser::is_literal_constant(inst_rep_var) ) { | |
| 2449 // else check if it is a constant expression | |
| 2450 // Removed following assert to allow primitive C types as arguments to encodings | |
| 2451 // assert( _constant_status == LITERAL_ACCESSED, "Must be processing a literal constant parameter"); | |
| 2452 fprintf(_fp,"(%s)", inst_rep_var); | |
| 2453 _constant_status = LITERAL_OUTPUT; | |
| 2454 } | |
| 2455 else if( Opcode::as_opcode_type(inst_rep_var) != Opcode::NOT_AN_OPCODE ) { | |
| 2456 // else check if "primary", "secondary", "tertiary" | |
| 2457 assert( _constant_status == LITERAL_ACCESSED, "Must be processing a literal constant parameter"); | |
|
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2458 if (!_inst._opcode->print_opcode(_fp, Opcode::as_opcode_type(inst_rep_var) )) { |
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2459 // Missing opcode |
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2460 _AD.syntax_err( _inst._linenum, |
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2461 "Missing $%s opcode definition in %s\n", |
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2462 rep_var, _inst._ident); |
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2463 |
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2464 } |
| 0 | 2465 _constant_status = LITERAL_OUTPUT; |
| 2466 } | |
| 2467 else if((_AD.get_registers() != NULL ) && (_AD.get_registers()->getRegDef(inst_rep_var) != NULL)) { | |
| 2468 // Instruction provided a literal register name for this parameter | |
| 2469 // Check that encoding specifies $$$reg to resolve.as register. | |
| 2470 assert( _reg_status == LITERAL_ACCESSED, "Must be processing a literal register parameter"); | |
| 2471 fprintf(_fp,"(%s_enc)", inst_rep_var); | |
| 2472 _reg_status = LITERAL_OUTPUT; | |
| 2473 } | |
| 2474 else { | |
| 2475 // Check for unimplemented functionality before hard failure | |
| 2476 assert( strcmp(opc->_ident,"label")==0, "Unimplemented() Label"); | |
| 2477 assert( false, "ShouldNotReachHere()"); | |
| 2478 } | |
| 2479 // all done | |
| 2480 } | |
| 2481 } | |
| 2482 | |
| 2483 }; // end class DefineEmitState | |
| 2484 | |
| 2485 | |
| 2486 void ArchDesc::defineSize(FILE *fp, InstructForm &inst) { | |
| 2487 | |
| 2488 //(1) | |
| 2489 // Output instruction's emit prototype | |
| 2490 fprintf(fp,"uint %sNode::size(PhaseRegAlloc *ra_) const {\n", | |
| 2491 inst._ident); | |
| 2492 | |
|
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2493 fprintf(fp, " assert(VerifyOops || MachNode::size(ra_) <= %s, \"bad fixed size\");\n", inst._size); |
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2494 |
| 0 | 2495 //(2) |
| 2496 // Print the size | |
| 2497 fprintf(fp, " return (VerifyOops ? MachNode::size(ra_) : %s);\n", inst._size); | |
| 2498 | |
| 2499 // (3) and (4) | |
| 2500 fprintf(fp,"}\n"); | |
| 2501 } | |
| 2502 | |
| 2008 | 2503 // defineEmit ----------------------------------------------------------------- |
| 2504 void ArchDesc::defineEmit(FILE* fp, InstructForm& inst) { | |
| 2505 InsEncode* encode = inst._insencode; | |
| 0 | 2506 |
| 2507 // (1) | |
| 2508 // Output instruction's emit prototype | |
| 2008 | 2509 fprintf(fp, "void %sNode::emit(CodeBuffer& cbuf, PhaseRegAlloc* ra_) const {\n", inst._ident); |
| 0 | 2510 |
| 2511 // If user did not define an encode section, | |
| 2512 // provide stub that does not generate any machine code. | |
| 2008 | 2513 if( (_encode == NULL) || (encode == NULL) ) { |
| 0 | 2514 fprintf(fp, " // User did not define an encode section.\n"); |
| 2008 | 2515 fprintf(fp, "}\n"); |
| 0 | 2516 return; |
| 2517 } | |
| 2518 | |
| 2519 // Save current instruction's starting address (helps with relocation). | |
| 2008 | 2520 fprintf(fp, " cbuf.set_insts_mark();\n"); |
| 2521 | |
| 2522 // For MachConstantNodes which are ideal jump nodes, fill the jump table. | |
| 2523 if (inst.is_mach_constant() && inst.is_ideal_jump()) { | |
| 2524 fprintf(fp, " ra_->C->constant_table().fill_jump_table(cbuf, (MachConstantNode*) this, _index2label);\n"); | |
| 2525 } | |
| 0 | 2526 |
| 2527 // Output each operand's offset into the array of registers. | |
| 2008 | 2528 inst.index_temps(fp, _globalNames); |
| 0 | 2529 |
| 2530 // Output this instruction's encodings | |
| 2531 const char *ec_name; | |
| 2532 bool user_defined = false; | |
| 2008 | 2533 encode->reset(); |
| 2534 while ((ec_name = encode->encode_class_iter()) != NULL) { | |
| 2535 fprintf(fp, " {\n"); | |
| 0 | 2536 // Output user-defined encoding |
| 2537 user_defined = true; | |
| 2538 | |
| 2539 const char *ec_code = NULL; | |
| 2540 const char *ec_rep_var = NULL; | |
| 2541 EncClass *encoding = _encode->encClass(ec_name); | |
| 2542 if (encoding == NULL) { | |
| 2543 fprintf(stderr, "User did not define contents of this encode_class: %s\n", ec_name); | |
| 2544 abort(); | |
| 2545 } | |
| 2546 | |
| 2008 | 2547 if (encode->current_encoding_num_args() != encoding->num_args()) { |
| 2548 globalAD->syntax_err(encode->_linenum, "In %s: passing %d arguments to %s but expecting %d", | |
| 2549 inst._ident, encode->current_encoding_num_args(), | |
| 0 | 2550 ec_name, encoding->num_args()); |
| 2551 } | |
| 2552 | |
| 2008 | 2553 DefineEmitState pending(fp, *this, *encoding, *encode, inst); |
| 0 | 2554 encoding->_code.reset(); |
| 2555 encoding->_rep_vars.reset(); | |
| 2556 // Process list of user-defined strings, | |
| 2557 // and occurrences of replacement variables. | |
| 2558 // Replacement Vars are pushed into a list and then output | |
| 2008 | 2559 while ((ec_code = encoding->_code.iter()) != NULL) { |
| 2560 if (!encoding->_code.is_signal(ec_code)) { | |
| 0 | 2561 // Emit pending code |
| 2562 pending.emit(); | |
| 2563 pending.clear(); | |
| 2564 // Emit this code section | |
| 2008 | 2565 fprintf(fp, "%s", ec_code); |
| 0 | 2566 } else { |
| 2567 // A replacement variable or one of its subfields | |
| 2568 // Obtain replacement variable from list | |
| 2569 ec_rep_var = encoding->_rep_vars.iter(); | |
| 2570 pending.add_rep_var(ec_rep_var); | |
| 2571 } | |
| 2572 } | |
| 2573 // Emit pending code | |
| 2574 pending.emit(); | |
| 2575 pending.clear(); | |
| 2008 | 2576 fprintf(fp, " }\n"); |
| 0 | 2577 } // end while instruction's encodings |
| 2578 | |
| 2579 // Check if user stated which encoding to user | |
| 2580 if ( user_defined == false ) { | |
| 2581 fprintf(fp, " // User did not define which encode class to use.\n"); | |
| 2582 } | |
| 2583 | |
| 2584 // (3) and (4) | |
| 2008 | 2585 fprintf(fp, "}\n"); |
| 2586 } | |
| 2587 | |
| 2588 // defineEvalConstant --------------------------------------------------------- | |
| 2589 void ArchDesc::defineEvalConstant(FILE* fp, InstructForm& inst) { | |
| 2590 InsEncode* encode = inst._constant; | |
| 2591 | |
| 2592 // (1) | |
| 2593 // Output instruction's emit prototype | |
| 2594 fprintf(fp, "void %sNode::eval_constant(Compile* C) {\n", inst._ident); | |
| 2595 | |
|
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2596 // For ideal jump nodes, add a jump-table entry. |
| 2008 | 2597 if (inst.is_ideal_jump()) { |
|
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2598 fprintf(fp, " _constant = C->constant_table().add_jump_table(this);\n"); |
| 2008 | 2599 } |
| 2600 | |
| 2601 // If user did not define an encode section, | |
| 2602 // provide stub that does not generate any machine code. | |
| 2603 if ((_encode == NULL) || (encode == NULL)) { | |
| 2604 fprintf(fp, " // User did not define an encode section.\n"); | |
| 2605 fprintf(fp, "}\n"); | |
| 2606 return; | |
| 2607 } | |
| 2608 | |
| 2609 // Output this instruction's encodings | |
| 2610 const char *ec_name; | |
| 2611 bool user_defined = false; | |
| 2612 encode->reset(); | |
| 2613 while ((ec_name = encode->encode_class_iter()) != NULL) { | |
| 2614 fprintf(fp, " {\n"); | |
| 2615 // Output user-defined encoding | |
| 2616 user_defined = true; | |
| 2617 | |
| 2618 const char *ec_code = NULL; | |
| 2619 const char *ec_rep_var = NULL; | |
| 2620 EncClass *encoding = _encode->encClass(ec_name); | |
| 2621 if (encoding == NULL) { | |
| 2622 fprintf(stderr, "User did not define contents of this encode_class: %s\n", ec_name); | |
| 2623 abort(); | |
| 2624 } | |
| 2625 | |
| 2626 if (encode->current_encoding_num_args() != encoding->num_args()) { | |
| 2627 globalAD->syntax_err(encode->_linenum, "In %s: passing %d arguments to %s but expecting %d", | |
| 2628 inst._ident, encode->current_encoding_num_args(), | |
| 2629 ec_name, encoding->num_args()); | |
| 2630 } | |
| 2631 | |
| 2632 DefineEmitState pending(fp, *this, *encoding, *encode, inst); | |
| 2633 encoding->_code.reset(); | |
| 2634 encoding->_rep_vars.reset(); | |
| 2635 // Process list of user-defined strings, | |
| 2636 // and occurrences of replacement variables. | |
| 2637 // Replacement Vars are pushed into a list and then output | |
| 2638 while ((ec_code = encoding->_code.iter()) != NULL) { | |
| 2639 if (!encoding->_code.is_signal(ec_code)) { | |
| 2640 // Emit pending code | |
| 2641 pending.emit(); | |
| 2642 pending.clear(); | |
| 2643 // Emit this code section | |
| 2644 fprintf(fp, "%s", ec_code); | |
| 2645 } else { | |
| 2646 // A replacement variable or one of its subfields | |
| 2647 // Obtain replacement variable from list | |
| 2648 ec_rep_var = encoding->_rep_vars.iter(); | |
| 2649 pending.add_rep_var(ec_rep_var); | |
| 2650 } | |
| 2651 } | |
| 2652 // Emit pending code | |
| 2653 pending.emit(); | |
| 2654 pending.clear(); | |
| 2655 fprintf(fp, " }\n"); | |
| 2656 } // end while instruction's encodings | |
| 2657 | |
| 2658 // Check if user stated which encoding to user | |
| 2659 if (user_defined == false) { | |
| 2660 fprintf(fp, " // User did not define which encode class to use.\n"); | |
| 2661 } | |
| 2662 | |
| 2663 // (3) and (4) | |
| 2664 fprintf(fp, "}\n"); | |
| 0 | 2665 } |
| 2666 | |
| 2667 // --------------------------------------------------------------------------- | |
| 2668 //--------Utilities to build MachOper and MachNode derived Classes------------ | |
| 2669 // --------------------------------------------------------------------------- | |
| 2670 | |
| 2671 //------------------------------Utilities to build Operand Classes------------ | |
| 2672 static void defineIn_RegMask(FILE *fp, FormDict &globals, OperandForm &oper) { | |
| 2673 uint num_edges = oper.num_edges(globals); | |
| 2674 if( num_edges != 0 ) { | |
| 2675 // Method header | |
| 2676 fprintf(fp, "const RegMask *%sOper::in_RegMask(int index) const {\n", | |
| 2677 oper._ident); | |
| 2678 | |
| 2679 // Assert that the index is in range. | |
| 2680 fprintf(fp, " assert(0 <= index && index < %d, \"index out of range\");\n", | |
| 2681 num_edges); | |
| 2682 | |
| 2683 // Figure out if all RegMasks are the same. | |
| 2684 const char* first_reg_class = oper.in_reg_class(0, globals); | |
| 2685 bool all_same = true; | |
| 2686 assert(first_reg_class != NULL, "did not find register mask"); | |
| 2687 | |
| 2688 for (uint index = 1; all_same && index < num_edges; index++) { | |
| 2689 const char* some_reg_class = oper.in_reg_class(index, globals); | |
| 2690 assert(some_reg_class != NULL, "did not find register mask"); | |
| 2691 if (strcmp(first_reg_class, some_reg_class) != 0) { | |
| 2692 all_same = false; | |
| 2693 } | |
| 2694 } | |
| 2695 | |
| 2696 if (all_same) { | |
| 2697 // Return the sole RegMask. | |
| 2698 if (strcmp(first_reg_class, "stack_slots") == 0) { | |
| 2699 fprintf(fp," return &(Compile::current()->FIRST_STACK_mask());\n"); | |
| 2700 } else { | |
|
4121
db2e64ca2d5a
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parents:
4114
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changeset
|
2701 fprintf(fp," return &%s_mask();\n", toUpper(first_reg_class)); |
| 0 | 2702 } |
| 2703 } else { | |
| 2704 // Build a switch statement to return the desired mask. | |
| 2705 fprintf(fp," switch (index) {\n"); | |
| 2706 | |
| 2707 for (uint index = 0; index < num_edges; index++) { | |
| 2708 const char *reg_class = oper.in_reg_class(index, globals); | |
| 2709 assert(reg_class != NULL, "did not find register mask"); | |
| 2710 if( !strcmp(reg_class, "stack_slots") ) { | |
| 2711 fprintf(fp, " case %d: return &(Compile::current()->FIRST_STACK_mask());\n", index); | |
| 2712 } else { | |
|
4121
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parents:
4114
diff
changeset
|
2713 fprintf(fp, " case %d: return &%s_mask();\n", index, toUpper(reg_class)); |
| 0 | 2714 } |
| 2715 } | |
| 2716 fprintf(fp," }\n"); | |
| 2717 fprintf(fp," ShouldNotReachHere();\n"); | |
| 2718 fprintf(fp," return NULL;\n"); | |
| 2719 } | |
| 2720 | |
| 2721 // Method close | |
| 2722 fprintf(fp, "}\n\n"); | |
| 2723 } | |
| 2724 } | |
| 2725 | |
| 2726 // generate code to create a clone for a class derived from MachOper | |
| 2727 // | |
| 2728 // (0) MachOper *MachOperXOper::clone(Compile* C) const { | |
| 2729 // (1) return new (C) MachXOper( _ccode, _c0, _c1, ..., _cn); | |
| 2730 // (2) } | |
| 2731 // | |
| 2732 static void defineClone(FILE *fp, FormDict &globalNames, OperandForm &oper) { | |
| 2733 fprintf(fp,"MachOper *%sOper::clone(Compile* C) const {\n", oper._ident); | |
| 2734 // Check for constants that need to be copied over | |
| 2735 const int num_consts = oper.num_consts(globalNames); | |
| 2736 const bool is_ideal_bool = oper.is_ideal_bool(); | |
| 2737 if( (num_consts > 0) ) { | |
| 2738 fprintf(fp," return new (C) %sOper(", oper._ident); | |
| 2739 // generate parameters for constants | |
| 2740 int i = 0; | |
| 2741 fprintf(fp,"_c%d", i); | |
| 2742 for( i = 1; i < num_consts; ++i) { | |
| 2743 fprintf(fp,", _c%d", i); | |
| 2744 } | |
| 2745 // finish line (1) | |
| 2746 fprintf(fp,");\n"); | |
| 2747 } | |
| 2748 else { | |
| 2749 assert( num_consts == 0, "Currently support zero or one constant per operand clone function"); | |
| 2750 fprintf(fp," return new (C) %sOper();\n", oper._ident); | |
| 2751 } | |
| 2752 // finish method | |
| 2753 fprintf(fp,"}\n"); | |
| 2754 } | |
| 2755 | |
| 2756 static void define_hash(FILE *fp, char *operand) { | |
| 2757 fprintf(fp,"uint %sOper::hash() const { return 5; }\n", operand); | |
| 2758 } | |
| 2759 | |
| 2760 static void define_cmp(FILE *fp, char *operand) { | |
| 2761 fprintf(fp,"uint %sOper::cmp( const MachOper &oper ) const { return opcode() == oper.opcode(); }\n", operand); | |
| 2762 } | |
| 2763 | |
| 2764 | |
| 2765 // Helper functions for bug 4796752, abstracted with minimal modification | |
| 2766 // from define_oper_interface() | |
| 2767 OperandForm *rep_var_to_operand(const char *encoding, OperandForm &oper, FormDict &globals) { | |
| 2768 OperandForm *op = NULL; | |
| 2769 // Check for replacement variable | |
| 2770 if( *encoding == '$' ) { | |
| 2771 // Replacement variable | |
| 2772 const char *rep_var = encoding + 1; | |
| 2773 // Lookup replacement variable, rep_var, in operand's component list | |
| 2774 const Component *comp = oper._components.search(rep_var); | |
| 2775 assert( comp != NULL, "Replacement variable not found in components"); | |
| 2776 // Lookup operand form for replacement variable's type | |
| 2777 const char *type = comp->_type; | |
| 2778 Form *form = (Form*)globals[type]; | |
| 2779 assert( form != NULL, "Replacement variable's type not found"); | |
| 2780 op = form->is_operand(); | |
| 2781 assert( op, "Attempting to emit a non-register or non-constant"); | |
| 2782 } | |
| 2783 | |
| 2784 return op; | |
| 2785 } | |
| 2786 | |
| 2787 int rep_var_to_constant_index(const char *encoding, OperandForm &oper, FormDict &globals) { | |
| 2788 int idx = -1; | |
| 2789 // Check for replacement variable | |
| 2790 if( *encoding == '$' ) { | |
| 2791 // Replacement variable | |
| 2792 const char *rep_var = encoding + 1; | |
| 2793 // Lookup replacement variable, rep_var, in operand's component list | |
| 2794 const Component *comp = oper._components.search(rep_var); | |
| 2795 assert( comp != NULL, "Replacement variable not found in components"); | |
| 2796 // Lookup operand form for replacement variable's type | |
| 2797 const char *type = comp->_type; | |
| 2798 Form *form = (Form*)globals[type]; | |
| 2799 assert( form != NULL, "Replacement variable's type not found"); | |
| 2800 OperandForm *op = form->is_operand(); | |
| 2801 assert( op, "Attempting to emit a non-register or non-constant"); | |
| 2802 // Check that this is a constant and find constant's index: | |
| 2803 if (op->_matrule && op->_matrule->is_base_constant(globals)) { | |
| 2804 idx = oper.constant_position(globals, comp); | |
| 2805 } | |
| 2806 } | |
| 2807 | |
| 2808 return idx; | |
| 2809 } | |
| 2810 | |
| 2811 bool is_regI(const char *encoding, OperandForm &oper, FormDict &globals ) { | |
| 2812 bool is_regI = false; | |
| 2813 | |
| 2814 OperandForm *op = rep_var_to_operand(encoding, oper, globals); | |
| 2815 if( op != NULL ) { | |
| 2816 // Check that this is a register | |
| 2817 if ( (op->_matrule && op->_matrule->is_base_register(globals)) ) { | |
| 2818 // Register | |
| 2819 const char* ideal = op->ideal_type(globals); | |
| 2820 is_regI = (ideal && (op->ideal_to_Reg_type(ideal) == Form::idealI)); | |
| 2821 } | |
| 2822 } | |
| 2823 | |
| 2824 return is_regI; | |
| 2825 } | |
| 2826 | |
| 2827 bool is_conP(const char *encoding, OperandForm &oper, FormDict &globals ) { | |
| 2828 bool is_conP = false; | |
| 2829 | |
| 2830 OperandForm *op = rep_var_to_operand(encoding, oper, globals); | |
| 2831 if( op != NULL ) { | |
| 2832 // Check that this is a constant pointer | |
| 2833 if (op->_matrule && op->_matrule->is_base_constant(globals)) { | |
| 2834 // Constant | |
| 2835 Form::DataType dtype = op->is_base_constant(globals); | |
| 2836 is_conP = (dtype == Form::idealP); | |
| 2837 } | |
| 2838 } | |
| 2839 | |
| 2840 return is_conP; | |
| 2841 } | |
| 2842 | |
| 2843 | |
| 2844 // Define a MachOper interface methods | |
| 2845 void ArchDesc::define_oper_interface(FILE *fp, OperandForm &oper, FormDict &globals, | |
| 2846 const char *name, const char *encoding) { | |
| 2847 bool emit_position = false; | |
| 2848 int position = -1; | |
| 2849 | |
| 2850 fprintf(fp," virtual int %s", name); | |
| 2851 // Generate access method for base, index, scale, disp, ... | |
| 2852 if( (strcmp(name,"base") == 0) || (strcmp(name,"index") == 0) ) { | |
| 2853 fprintf(fp,"(PhaseRegAlloc *ra_, const Node *node, int idx) const { \n"); | |
| 2854 emit_position = true; | |
| 2855 } else if ( (strcmp(name,"disp") == 0) ) { | |
| 2856 fprintf(fp,"(PhaseRegAlloc *ra_, const Node *node, int idx) const { \n"); | |
| 2857 } else { | |
| 2858 fprintf(fp,"() const { "); | |
| 2859 } | |
| 2860 | |
| 2861 // Check for hexadecimal value OR replacement variable | |
| 2862 if( *encoding == '$' ) { | |
| 2863 // Replacement variable | |
| 2864 const char *rep_var = encoding + 1; | |
| 2865 fprintf(fp,"// Replacement variable: %s\n", encoding+1); | |
| 2866 // Lookup replacement variable, rep_var, in operand's component list | |
| 2867 const Component *comp = oper._components.search(rep_var); | |
| 2868 assert( comp != NULL, "Replacement variable not found in components"); | |
| 2869 // Lookup operand form for replacement variable's type | |
| 2870 const char *type = comp->_type; | |
| 2871 Form *form = (Form*)globals[type]; | |
| 2872 assert( form != NULL, "Replacement variable's type not found"); | |
| 2873 OperandForm *op = form->is_operand(); | |
| 2874 assert( op, "Attempting to emit a non-register or non-constant"); | |
| 2875 // Check that this is a register or a constant and generate code: | |
| 2876 if ( (op->_matrule && op->_matrule->is_base_register(globals)) ) { | |
| 2877 // Register | |
| 2878 int idx_offset = oper.register_position( globals, rep_var); | |
| 2879 position = idx_offset; | |
| 2880 fprintf(fp," return (int)ra_->get_encode(node->in(idx"); | |
| 2881 if ( idx_offset > 0 ) fprintf(fp, "+%d",idx_offset); | |
| 2882 fprintf(fp,"));\n"); | |
| 2883 } else if ( op->ideal_to_sReg_type(op->_ident) != Form::none ) { | |
| 2884 // StackSlot for an sReg comes either from input node or from self, when idx==0 | |
| 2885 fprintf(fp," if( idx != 0 ) {\n"); | |
| 2886 fprintf(fp," // Access register number for input operand\n"); | |
| 2887 fprintf(fp," return ra_->reg2offset(ra_->get_reg_first(node->in(idx)));/* sReg */\n"); | |
| 2888 fprintf(fp," }\n"); | |
| 2889 fprintf(fp," // Access register number from myself\n"); | |
| 2890 fprintf(fp," return ra_->reg2offset(ra_->get_reg_first(node));/* sReg */\n"); | |
| 2891 } else if (op->_matrule && op->_matrule->is_base_constant(globals)) { | |
| 2892 // Constant | |
| 2893 // Check which constant this name maps to: _c0, _c1, ..., _cn | |
| 2894 const int idx = oper.constant_position(globals, comp); | |
| 2895 assert( idx != -1, "Constant component not found in operand"); | |
| 2896 // Output code for this constant, type dependent. | |
| 2897 fprintf(fp," return (int)" ); | |
| 2898 oper.access_constant(fp, globals, (uint)idx /* , const_type */); | |
| 2899 fprintf(fp,";\n"); | |
| 2900 } else { | |
| 2901 assert( false, "Attempting to emit a non-register or non-constant"); | |
| 2902 } | |
| 2903 } | |
| 2904 else if( *encoding == '0' && *(encoding+1) == 'x' ) { | |
| 2905 // Hex value | |
| 2906 fprintf(fp,"return %s;", encoding); | |
| 2907 } else { | |
| 2908 assert( false, "Do not support octal or decimal encode constants"); | |
| 2909 } | |
| 2910 fprintf(fp," }\n"); | |
| 2911 | |
| 2912 if( emit_position && (position != -1) && (oper.num_edges(globals) > 0) ) { | |
| 2913 fprintf(fp," virtual int %s_position() const { return %d; }\n", name, position); | |
| 2914 MemInterface *mem_interface = oper._interface->is_MemInterface(); | |
| 2915 const char *base = mem_interface->_base; | |
| 2916 const char *disp = mem_interface->_disp; | |
| 2917 if( emit_position && (strcmp(name,"base") == 0) | |
| 2918 && base != NULL && is_regI(base, oper, globals) | |
| 2919 && disp != NULL && is_conP(disp, oper, globals) ) { | |
| 2920 // Found a memory access using a constant pointer for a displacement | |
| 2921 // and a base register containing an integer offset. | |
| 2922 // In this case the base and disp are reversed with respect to what | |
| 2923 // is expected by MachNode::get_base_and_disp() and MachNode::adr_type(). | |
| 2924 // Provide a non-NULL return for disp_as_type() that will allow adr_type() | |
| 2925 // to correctly compute the access type for alias analysis. | |
| 2926 // | |
| 2927 // See BugId 4796752, operand indOffset32X in i486.ad | |
| 2928 int idx = rep_var_to_constant_index(disp, oper, globals); | |
| 2929 fprintf(fp," virtual const TypePtr *disp_as_type() const { return _c%d; }\n", idx); | |
| 2930 } | |
| 2931 } | |
| 2932 } | |
| 2933 | |
| 2934 // | |
| 2935 // Construct the method to copy _idx, inputs and operands to new node. | |
| 2936 static void define_fill_new_machnode(bool used, FILE *fp_cpp) { | |
| 2937 fprintf(fp_cpp, "\n"); | |
| 2938 fprintf(fp_cpp, "// Copy _idx, inputs and operands to new node\n"); | |
| 2939 fprintf(fp_cpp, "void MachNode::fill_new_machnode( MachNode* node, Compile* C) const {\n"); | |
| 2940 if( !used ) { | |
| 2941 fprintf(fp_cpp, " // This architecture does not have cisc or short branch instructions\n"); | |
| 2942 fprintf(fp_cpp, " ShouldNotCallThis();\n"); | |
| 2943 fprintf(fp_cpp, "}\n"); | |
| 2944 } else { | |
| 2945 // New node must use same node index for access through allocator's tables | |
| 2946 fprintf(fp_cpp, " // New node must use same node index\n"); | |
| 2947 fprintf(fp_cpp, " node->set_idx( _idx );\n"); | |
| 2948 // Copy machine-independent inputs | |
| 2949 fprintf(fp_cpp, " // Copy machine-independent inputs\n"); | |
| 2950 fprintf(fp_cpp, " for( uint j = 0; j < req(); j++ ) {\n"); | |
| 2951 fprintf(fp_cpp, " node->add_req(in(j));\n"); | |
| 2952 fprintf(fp_cpp, " }\n"); | |
| 2953 // Copy machine operands to new MachNode | |
| 2954 fprintf(fp_cpp, " // Copy my operands, except for cisc position\n"); | |
| 2955 fprintf(fp_cpp, " int nopnds = num_opnds();\n"); | |
| 2956 fprintf(fp_cpp, " assert( node->num_opnds() == (uint)nopnds, \"Must have same number of operands\");\n"); | |
| 2957 fprintf(fp_cpp, " MachOper **to = node->_opnds;\n"); | |
| 2958 fprintf(fp_cpp, " for( int i = 0; i < nopnds; i++ ) {\n"); | |
| 2959 fprintf(fp_cpp, " if( i != cisc_operand() ) \n"); | |
| 2960 fprintf(fp_cpp, " to[i] = _opnds[i]->clone(C);\n"); | |
| 2961 fprintf(fp_cpp, " }\n"); | |
| 2962 fprintf(fp_cpp, "}\n"); | |
| 2963 } | |
| 2964 fprintf(fp_cpp, "\n"); | |
| 2965 } | |
| 2966 | |
| 2967 //------------------------------defineClasses---------------------------------- | |
| 2968 // Define members of MachNode and MachOper classes based on | |
| 2969 // operand and instruction lists | |
| 2970 void ArchDesc::defineClasses(FILE *fp) { | |
| 2971 | |
| 2972 // Define the contents of an array containing the machine register names | |
| 2973 defineRegNames(fp, _register); | |
| 2974 // Define an array containing the machine register encoding values | |
| 2975 defineRegEncodes(fp, _register); | |
| 2976 // Generate an enumeration of user-defined register classes | |
| 2977 // and a list of register masks, one for each class. | |
| 2978 // Only define the RegMask value objects in the expand file. | |
| 2979 // Declare each as an extern const RegMask ...; in ad_<arch>.hpp | |
| 2980 declare_register_masks(_HPP_file._fp); | |
| 2981 // build_register_masks(fp); | |
| 2982 build_register_masks(_CPP_EXPAND_file._fp); | |
| 2983 // Define the pipe_classes | |
| 2984 build_pipe_classes(_CPP_PIPELINE_file._fp); | |
| 2985 | |
| 2986 // Generate Machine Classes for each operand defined in AD file | |
| 2987 fprintf(fp,"\n"); | |
| 2988 fprintf(fp,"\n"); | |
| 2989 fprintf(fp,"//------------------Define classes derived from MachOper---------------------\n"); | |
| 2990 // Iterate through all operands | |
| 2991 _operands.reset(); | |
| 2992 OperandForm *oper; | |
| 2993 for( ; (oper = (OperandForm*)_operands.iter()) != NULL; ) { | |
| 2994 // Ensure this is a machine-world instruction | |
| 2995 if ( oper->ideal_only() ) continue; | |
| 2996 // !!!!! | |
| 2997 // The declaration of labelOper is in machine-independent file: machnode | |
| 2998 if ( strcmp(oper->_ident,"label") == 0 ) { | |
| 2999 defineIn_RegMask(_CPP_MISC_file._fp, _globalNames, *oper); | |
| 3000 | |
| 3001 fprintf(fp,"MachOper *%sOper::clone(Compile* C) const {\n", oper->_ident); | |
| 3002 fprintf(fp," return new (C) %sOper(_label, _block_num);\n", oper->_ident); | |
| 3003 fprintf(fp,"}\n"); | |
| 3004 | |
| 3005 fprintf(fp,"uint %sOper::opcode() const { return %s; }\n", | |
| 3006 oper->_ident, machOperEnum(oper->_ident)); | |
| 3007 // // Currently all XXXOper::Hash() methods are identical (990820) | |
| 3008 // define_hash(fp, oper->_ident); | |
| 3009 // // Currently all XXXOper::Cmp() methods are identical (990820) | |
| 3010 // define_cmp(fp, oper->_ident); | |
| 3011 fprintf(fp,"\n"); | |
| 3012 | |
| 3013 continue; | |
| 3014 } | |
| 3015 | |
| 3016 // The declaration of methodOper is in machine-independent file: machnode | |
| 3017 if ( strcmp(oper->_ident,"method") == 0 ) { | |
| 3018 defineIn_RegMask(_CPP_MISC_file._fp, _globalNames, *oper); | |
| 3019 | |
| 3020 fprintf(fp,"MachOper *%sOper::clone(Compile* C) const {\n", oper->_ident); | |
| 3021 fprintf(fp," return new (C) %sOper(_method);\n", oper->_ident); | |
| 3022 fprintf(fp,"}\n"); | |
| 3023 | |
| 3024 fprintf(fp,"uint %sOper::opcode() const { return %s; }\n", | |
| 3025 oper->_ident, machOperEnum(oper->_ident)); | |
| 3026 // // Currently all XXXOper::Hash() methods are identical (990820) | |
| 3027 // define_hash(fp, oper->_ident); | |
| 3028 // // Currently all XXXOper::Cmp() methods are identical (990820) | |
| 3029 // define_cmp(fp, oper->_ident); | |
| 3030 fprintf(fp,"\n"); | |
| 3031 | |
| 3032 continue; | |
| 3033 } | |
| 3034 | |
| 3035 defineIn_RegMask(fp, _globalNames, *oper); | |
| 3036 defineClone(_CPP_CLONE_file._fp, _globalNames, *oper); | |
| 3037 // // Currently all XXXOper::Hash() methods are identical (990820) | |
| 3038 // define_hash(fp, oper->_ident); | |
| 3039 // // Currently all XXXOper::Cmp() methods are identical (990820) | |
| 3040 // define_cmp(fp, oper->_ident); | |
| 3041 | |
| 3042 // side-call to generate output that used to be in the header file: | |
| 3043 extern void gen_oper_format(FILE *fp, FormDict &globals, OperandForm &oper, bool for_c_file); | |
| 3044 gen_oper_format(_CPP_FORMAT_file._fp, _globalNames, *oper, true); | |
| 3045 | |
| 3046 } | |
| 3047 | |
| 3048 | |
| 3049 // Generate Machine Classes for each instruction defined in AD file | |
| 3050 fprintf(fp,"//------------------Define members for classes derived from MachNode----------\n"); | |
| 3051 // Output the definitions for out_RegMask() // & kill_RegMask() | |
| 3052 _instructions.reset(); | |
| 3053 InstructForm *instr; | |
| 3054 MachNodeForm *machnode; | |
| 3055 for( ; (instr = (InstructForm*)_instructions.iter()) != NULL; ) { | |
| 3056 // Ensure this is a machine-world instruction | |
| 3057 if ( instr->ideal_only() ) continue; | |
| 3058 | |
| 3059 defineOut_RegMask(_CPP_MISC_file._fp, instr->_ident, reg_mask(*instr)); | |
| 3060 } | |
| 3061 | |
| 3062 bool used = false; | |
| 3063 // Output the definitions for expand rules & peephole rules | |
| 3064 _instructions.reset(); | |
| 3065 for( ; (instr = (InstructForm*)_instructions.iter()) != NULL; ) { | |
| 3066 // Ensure this is a machine-world instruction | |
| 3067 if ( instr->ideal_only() ) continue; | |
| 3068 // If there are multiple defs/kills, or an explicit expand rule, build rule | |
| 3069 if( instr->expands() || instr->needs_projections() || | |
| 3070 instr->has_temps() || | |
| 2008 | 3071 instr->is_mach_constant() || |
| 0 | 3072 instr->_matrule != NULL && |
| 3073 instr->num_opnds() != instr->num_unique_opnds() ) | |
| 3074 defineExpand(_CPP_EXPAND_file._fp, instr); | |
| 3075 // If there is an explicit peephole rule, build it | |
| 3076 if ( instr->peepholes() ) | |
| 3077 definePeephole(_CPP_PEEPHOLE_file._fp, instr); | |
| 3078 | |
| 3079 // Output code to convert to the cisc version, if applicable | |
| 3080 used |= instr->define_cisc_version(*this, fp); | |
| 3081 | |
| 3082 // Output code to convert to the short branch version, if applicable | |
|
1541
b5fdf39b9749
6953576: bottom_type for matched AddPNodes doesn't always agree with ideal
never
parents:
1489
diff
changeset
|
3083 used |= instr->define_short_branch_methods(*this, fp); |
| 0 | 3084 } |
| 3085 | |
| 3086 // Construct the method called by cisc_version() to copy inputs and operands. | |
| 3087 define_fill_new_machnode(used, fp); | |
| 3088 | |
| 3089 // Output the definitions for labels | |
| 3090 _instructions.reset(); | |
| 3091 while( (instr = (InstructForm*)_instructions.iter()) != NULL ) { | |
| 3092 // Ensure this is a machine-world instruction | |
| 3093 if ( instr->ideal_only() ) continue; | |
| 3094 | |
| 3095 // Access the fields for operand Label | |
| 3096 int label_position = instr->label_position(); | |
| 3097 if( label_position != -1 ) { | |
| 3098 // Set the label | |
| 3839 | 3099 fprintf(fp,"void %sNode::label_set( Label* label, uint block_num ) {\n", instr->_ident); |
| 0 | 3100 fprintf(fp," labelOper* oper = (labelOper*)(opnd_array(%d));\n", |
| 3101 label_position ); | |
| 3839 | 3102 fprintf(fp," oper->_label = label;\n"); |
| 0 | 3103 fprintf(fp," oper->_block_num = block_num;\n"); |
| 3104 fprintf(fp,"}\n"); | |
|
3853
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|
3105 // Save the label |
|
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|
3106 fprintf(fp,"void %sNode::save_label( Label** label, uint* block_num ) {\n", instr->_ident); |
|
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diff
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|
3107 fprintf(fp," labelOper* oper = (labelOper*)(opnd_array(%d));\n", |
|
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diff
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|
3108 label_position ); |
|
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|
3109 fprintf(fp," *label = oper->_label;\n"); |
|
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|
3110 fprintf(fp," *block_num = oper->_block_num;\n"); |
|
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|
3111 fprintf(fp,"}\n"); |
| 0 | 3112 } |
| 3113 } | |
| 3114 | |
| 3115 // Output the definitions for methods | |
| 3116 _instructions.reset(); | |
| 3117 while( (instr = (InstructForm*)_instructions.iter()) != NULL ) { | |
| 3118 // Ensure this is a machine-world instruction | |
| 3119 if ( instr->ideal_only() ) continue; | |
| 3120 | |
| 3121 // Access the fields for operand Label | |
| 3122 int method_position = instr->method_position(); | |
| 3123 if( method_position != -1 ) { | |
| 3124 // Access the method's address | |
| 3125 fprintf(fp,"void %sNode::method_set( intptr_t method ) {\n", instr->_ident); | |
| 3126 fprintf(fp," ((methodOper*)opnd_array(%d))->_method = method;\n", | |
| 3127 method_position ); | |
| 3128 fprintf(fp,"}\n"); | |
| 3129 fprintf(fp,"\n"); | |
| 3130 } | |
| 3131 } | |
| 3132 | |
| 3133 // Define this instruction's number of relocation entries, base is '0' | |
| 3134 _instructions.reset(); | |
| 3135 while( (instr = (InstructForm*)_instructions.iter()) != NULL ) { | |
| 3136 // Output the definition for number of relocation entries | |
| 3137 uint reloc_size = instr->reloc(_globalNames); | |
| 3138 if ( reloc_size != 0 ) { | |
| 3139 fprintf(fp,"int %sNode::reloc() const {\n", instr->_ident); | |
| 3140 fprintf(fp, " return %d;\n", reloc_size ); | |
| 3141 fprintf(fp,"}\n"); | |
| 3142 fprintf(fp,"\n"); | |
| 3143 } | |
| 3144 } | |
| 3145 fprintf(fp,"\n"); | |
| 3146 | |
| 3147 // Output the definitions for code generation | |
| 3148 // | |
| 3149 // address ___Node::emit(address ptr, PhaseRegAlloc *ra_) const { | |
| 3150 // // ... encoding defined by user | |
| 3151 // return ptr; | |
| 3152 // } | |
| 3153 // | |
| 3154 _instructions.reset(); | |
| 3155 for( ; (instr = (InstructForm*)_instructions.iter()) != NULL; ) { | |
| 3156 // Ensure this is a machine-world instruction | |
| 3157 if ( instr->ideal_only() ) continue; | |
| 3158 | |
| 2008 | 3159 if (instr->_insencode) defineEmit (fp, *instr); |
| 3160 if (instr->is_mach_constant()) defineEvalConstant(fp, *instr); | |
| 3161 if (instr->_size) defineSize (fp, *instr); | |
| 0 | 3162 |
| 3163 // side-call to generate output that used to be in the header file: | |
| 3164 extern void gen_inst_format(FILE *fp, FormDict &globals, InstructForm &oper, bool for_c_file); | |
| 3165 gen_inst_format(_CPP_FORMAT_file._fp, _globalNames, *instr, true); | |
| 3166 } | |
| 3167 | |
| 3168 // Output the definitions for alias analysis | |
| 3169 _instructions.reset(); | |
| 3170 for( ; (instr = (InstructForm*)_instructions.iter()) != NULL; ) { | |
| 3171 // Ensure this is a machine-world instruction | |
| 3172 if ( instr->ideal_only() ) continue; | |
| 3173 | |
| 3174 // Analyze machine instructions that either USE or DEF memory. | |
| 3175 int memory_operand = instr->memory_operand(_globalNames); | |
| 3176 // Some guys kill all of memory | |
| 3177 if ( instr->is_wide_memory_kill(_globalNames) ) { | |
| 3178 memory_operand = InstructForm::MANY_MEMORY_OPERANDS; | |
| 3179 } | |
| 3180 | |
| 3181 if ( memory_operand != InstructForm::NO_MEMORY_OPERAND ) { | |
| 3182 if( memory_operand == InstructForm::MANY_MEMORY_OPERANDS ) { | |
| 3183 fprintf(fp,"const TypePtr *%sNode::adr_type() const { return TypePtr::BOTTOM; }\n", instr->_ident); | |
| 3184 fprintf(fp,"const MachOper* %sNode::memory_operand() const { return (MachOper*)-1; }\n", instr->_ident); | |
| 3185 } else { | |
| 3186 fprintf(fp,"const MachOper* %sNode::memory_operand() const { return _opnds[%d]; }\n", instr->_ident, memory_operand); | |
| 3187 } | |
| 3188 } | |
| 3189 } | |
| 3190 | |
| 3191 // Get the length of the longest identifier | |
| 3192 int max_ident_len = 0; | |
| 3193 _instructions.reset(); | |
| 3194 | |
| 3195 for ( ; (instr = (InstructForm*)_instructions.iter()) != NULL; ) { | |
| 3196 if (instr->_ins_pipe && _pipeline->_classlist.search(instr->_ins_pipe)) { | |
| 3197 int ident_len = (int)strlen(instr->_ident); | |
| 3198 if( max_ident_len < ident_len ) | |
| 3199 max_ident_len = ident_len; | |
| 3200 } | |
| 3201 } | |
| 3202 | |
| 3203 // Emit specifically for Node(s) | |
| 3204 fprintf(_CPP_PIPELINE_file._fp, "const Pipeline * %*s::pipeline_class() { return %s; }\n", | |
| 3205 max_ident_len, "Node", _pipeline ? "(&pipeline_class_Zero_Instructions)" : "NULL"); | |
| 3206 fprintf(_CPP_PIPELINE_file._fp, "const Pipeline * %*s::pipeline() const { return %s; }\n", | |
| 3207 max_ident_len, "Node", _pipeline ? "(&pipeline_class_Zero_Instructions)" : "NULL"); | |
| 3208 fprintf(_CPP_PIPELINE_file._fp, "\n"); | |
| 3209 | |
| 3210 fprintf(_CPP_PIPELINE_file._fp, "const Pipeline * %*s::pipeline_class() { return %s; }\n", | |
| 3211 max_ident_len, "MachNode", _pipeline ? "(&pipeline_class_Unknown_Instructions)" : "NULL"); | |
| 3212 fprintf(_CPP_PIPELINE_file._fp, "const Pipeline * %*s::pipeline() const { return pipeline_class(); }\n", | |
| 3213 max_ident_len, "MachNode"); | |
| 3214 fprintf(_CPP_PIPELINE_file._fp, "\n"); | |
| 3215 | |
| 3216 // Output the definitions for machine node specific pipeline data | |
| 3217 _machnodes.reset(); | |
| 3218 | |
| 3219 for ( ; (machnode = (MachNodeForm*)_machnodes.iter()) != NULL; ) { | |
| 3220 fprintf(_CPP_PIPELINE_file._fp, "const Pipeline * %sNode::pipeline() const { return (&pipeline_class_%03d); }\n", | |
| 3221 machnode->_ident, ((class PipeClassForm *)_pipeline->_classdict[machnode->_machnode_pipe])->_num); | |
| 3222 } | |
| 3223 | |
| 3224 fprintf(_CPP_PIPELINE_file._fp, "\n"); | |
| 3225 | |
| 3226 // Output the definitions for instruction pipeline static data references | |
| 3227 _instructions.reset(); | |
| 3228 | |
| 3229 for ( ; (instr = (InstructForm*)_instructions.iter()) != NULL; ) { | |
| 3230 if (instr->_ins_pipe && _pipeline->_classlist.search(instr->_ins_pipe)) { | |
| 3231 fprintf(_CPP_PIPELINE_file._fp, "\n"); | |
| 3232 fprintf(_CPP_PIPELINE_file._fp, "const Pipeline * %*sNode::pipeline_class() { return (&pipeline_class_%03d); }\n", | |
| 3233 max_ident_len, instr->_ident, ((class PipeClassForm *)_pipeline->_classdict[instr->_ins_pipe])->_num); | |
| 3234 fprintf(_CPP_PIPELINE_file._fp, "const Pipeline * %*sNode::pipeline() const { return (&pipeline_class_%03d); }\n", | |
| 3235 max_ident_len, instr->_ident, ((class PipeClassForm *)_pipeline->_classdict[instr->_ins_pipe])->_num); | |
| 3236 } | |
| 3237 } | |
| 3238 } | |
| 3239 | |
| 3240 | |
| 3241 // -------------------------------- maps ------------------------------------ | |
| 3242 | |
| 3243 // Information needed to generate the ReduceOp mapping for the DFA | |
| 3244 class OutputReduceOp : public OutputMap { | |
| 3245 public: | |
| 3246 OutputReduceOp(FILE *hpp, FILE *cpp, FormDict &globals, ArchDesc &AD) | |
| 3247 : OutputMap(hpp, cpp, globals, AD) {}; | |
| 3248 | |
| 3249 void declaration() { fprintf(_hpp, "extern const int reduceOp[];\n"); } | |
| 3250 void definition() { fprintf(_cpp, "const int reduceOp[] = {\n"); } | |
| 3251 void closing() { fprintf(_cpp, " 0 // no trailing comma\n"); | |
| 3252 OutputMap::closing(); | |
| 3253 } | |
| 3254 void map(OpClassForm &opc) { | |
| 3255 const char *reduce = opc._ident; | |
| 3256 if( reduce ) fprintf(_cpp, " %s_rule", reduce); | |
| 3257 else fprintf(_cpp, " 0"); | |
| 3258 } | |
| 3259 void map(OperandForm &oper) { | |
| 3260 // Most operands without match rules, e.g. eFlagsReg, do not have a result operand | |
| 3261 const char *reduce = (oper._matrule ? oper.reduce_result() : NULL); | |
| 3262 // operand stackSlot does not have a match rule, but produces a stackSlot | |
| 3263 if( oper.is_user_name_for_sReg() != Form::none ) reduce = oper.reduce_result(); | |
| 3264 if( reduce ) fprintf(_cpp, " %s_rule", reduce); | |
| 3265 else fprintf(_cpp, " 0"); | |
| 3266 } | |
| 3267 void map(InstructForm &inst) { | |
| 3268 const char *reduce = (inst._matrule ? inst.reduce_result() : NULL); | |
| 3269 if( reduce ) fprintf(_cpp, " %s_rule", reduce); | |
| 3270 else fprintf(_cpp, " 0"); | |
| 3271 } | |
| 3272 void map(char *reduce) { | |
| 3273 if( reduce ) fprintf(_cpp, " %s_rule", reduce); | |
| 3274 else fprintf(_cpp, " 0"); | |
| 3275 } | |
| 3276 }; | |
| 3277 | |
| 3278 // Information needed to generate the LeftOp mapping for the DFA | |
| 3279 class OutputLeftOp : public OutputMap { | |
| 3280 public: | |
| 3281 OutputLeftOp(FILE *hpp, FILE *cpp, FormDict &globals, ArchDesc &AD) | |
| 3282 : OutputMap(hpp, cpp, globals, AD) {}; | |
| 3283 | |
| 3284 void declaration() { fprintf(_hpp, "extern const int leftOp[];\n"); } | |
| 3285 void definition() { fprintf(_cpp, "const int leftOp[] = {\n"); } | |
| 3286 void closing() { fprintf(_cpp, " 0 // no trailing comma\n"); | |
| 3287 OutputMap::closing(); | |
| 3288 } | |
| 3289 void map(OpClassForm &opc) { fprintf(_cpp, " 0"); } | |
| 3290 void map(OperandForm &oper) { | |
| 3291 const char *reduce = oper.reduce_left(_globals); | |
| 3292 if( reduce ) fprintf(_cpp, " %s_rule", reduce); | |
| 3293 else fprintf(_cpp, " 0"); | |
| 3294 } | |
| 3295 void map(char *name) { | |
| 3296 const char *reduce = _AD.reduceLeft(name); | |
| 3297 if( reduce ) fprintf(_cpp, " %s_rule", reduce); | |
| 3298 else fprintf(_cpp, " 0"); | |
| 3299 } | |
| 3300 void map(InstructForm &inst) { | |
| 3301 const char *reduce = inst.reduce_left(_globals); | |
| 3302 if( reduce ) fprintf(_cpp, " %s_rule", reduce); | |
| 3303 else fprintf(_cpp, " 0"); | |
| 3304 } | |
| 3305 }; | |
| 3306 | |
| 3307 | |
| 3308 // Information needed to generate the RightOp mapping for the DFA | |
| 3309 class OutputRightOp : public OutputMap { | |
| 3310 public: | |
| 3311 OutputRightOp(FILE *hpp, FILE *cpp, FormDict &globals, ArchDesc &AD) | |
| 3312 : OutputMap(hpp, cpp, globals, AD) {}; | |
| 3313 | |
| 3314 void declaration() { fprintf(_hpp, "extern const int rightOp[];\n"); } | |
| 3315 void definition() { fprintf(_cpp, "const int rightOp[] = {\n"); } | |
| 3316 void closing() { fprintf(_cpp, " 0 // no trailing comma\n"); | |
| 3317 OutputMap::closing(); | |
| 3318 } | |
| 3319 void map(OpClassForm &opc) { fprintf(_cpp, " 0"); } | |
| 3320 void map(OperandForm &oper) { | |
| 3321 const char *reduce = oper.reduce_right(_globals); | |
| 3322 if( reduce ) fprintf(_cpp, " %s_rule", reduce); | |
| 3323 else fprintf(_cpp, " 0"); | |
| 3324 } | |
| 3325 void map(char *name) { | |
| 3326 const char *reduce = _AD.reduceRight(name); | |
| 3327 if( reduce ) fprintf(_cpp, " %s_rule", reduce); | |
| 3328 else fprintf(_cpp, " 0"); | |
| 3329 } | |
| 3330 void map(InstructForm &inst) { | |
| 3331 const char *reduce = inst.reduce_right(_globals); | |
| 3332 if( reduce ) fprintf(_cpp, " %s_rule", reduce); | |
| 3333 else fprintf(_cpp, " 0"); | |
| 3334 } | |
| 3335 }; | |
| 3336 | |
| 3337 | |
| 3338 // Information needed to generate the Rule names for the DFA | |
| 3339 class OutputRuleName : public OutputMap { | |
| 3340 public: | |
| 3341 OutputRuleName(FILE *hpp, FILE *cpp, FormDict &globals, ArchDesc &AD) | |
| 3342 : OutputMap(hpp, cpp, globals, AD) {}; | |
| 3343 | |
| 3344 void declaration() { fprintf(_hpp, "extern const char *ruleName[];\n"); } | |
| 3345 void definition() { fprintf(_cpp, "const char *ruleName[] = {\n"); } | |
| 3346 void closing() { fprintf(_cpp, " \"no trailing comma\"\n"); | |
| 3347 OutputMap::closing(); | |
| 3348 } | |
| 3349 void map(OpClassForm &opc) { fprintf(_cpp, " \"%s\"", _AD.machOperEnum(opc._ident) ); } | |
| 3350 void map(OperandForm &oper) { fprintf(_cpp, " \"%s\"", _AD.machOperEnum(oper._ident) ); } | |
| 3351 void map(char *name) { fprintf(_cpp, " \"%s\"", name ? name : "0"); } | |
| 3352 void map(InstructForm &inst){ fprintf(_cpp, " \"%s\"", inst._ident ? inst._ident : "0"); } | |
| 3353 }; | |
| 3354 | |
| 3355 | |
| 3356 // Information needed to generate the swallowed mapping for the DFA | |
| 3357 class OutputSwallowed : public OutputMap { | |
| 3358 public: | |
| 3359 OutputSwallowed(FILE *hpp, FILE *cpp, FormDict &globals, ArchDesc &AD) | |
| 3360 : OutputMap(hpp, cpp, globals, AD) {}; | |
| 3361 | |
| 3362 void declaration() { fprintf(_hpp, "extern const bool swallowed[];\n"); } | |
| 3363 void definition() { fprintf(_cpp, "const bool swallowed[] = {\n"); } | |
| 3364 void closing() { fprintf(_cpp, " false // no trailing comma\n"); | |
| 3365 OutputMap::closing(); | |
| 3366 } | |
| 3367 void map(OperandForm &oper) { // Generate the entry for this opcode | |
| 3368 const char *swallowed = oper.swallowed(_globals) ? "true" : "false"; | |
| 3369 fprintf(_cpp, " %s", swallowed); | |
| 3370 } | |
| 3371 void map(OpClassForm &opc) { fprintf(_cpp, " false"); } | |
| 3372 void map(char *name) { fprintf(_cpp, " false"); } | |
| 3373 void map(InstructForm &inst){ fprintf(_cpp, " false"); } | |
| 3374 }; | |
| 3375 | |
| 3376 | |
| 3377 // Information needed to generate the decision array for instruction chain rule | |
| 3378 class OutputInstChainRule : public OutputMap { | |
| 3379 public: | |
| 3380 OutputInstChainRule(FILE *hpp, FILE *cpp, FormDict &globals, ArchDesc &AD) | |
| 3381 : OutputMap(hpp, cpp, globals, AD) {}; | |
| 3382 | |
| 3383 void declaration() { fprintf(_hpp, "extern const bool instruction_chain_rule[];\n"); } | |
| 3384 void definition() { fprintf(_cpp, "const bool instruction_chain_rule[] = {\n"); } | |
| 3385 void closing() { fprintf(_cpp, " false // no trailing comma\n"); | |
| 3386 OutputMap::closing(); | |
| 3387 } | |
| 3388 void map(OpClassForm &opc) { fprintf(_cpp, " false"); } | |
| 3389 void map(OperandForm &oper) { fprintf(_cpp, " false"); } | |
| 3390 void map(char *name) { fprintf(_cpp, " false"); } | |
| 3391 void map(InstructForm &inst) { // Check for simple chain rule | |
| 3392 const char *chain = inst.is_simple_chain_rule(_globals) ? "true" : "false"; | |
| 3393 fprintf(_cpp, " %s", chain); | |
| 3394 } | |
| 3395 }; | |
| 3396 | |
| 3397 | |
| 3398 //---------------------------build_map------------------------------------ | |
| 3399 // Build mapping from enumeration for densely packed operands | |
| 3400 // TO result and child types. | |
| 3401 void ArchDesc::build_map(OutputMap &map) { | |
| 3402 FILE *fp_hpp = map.decl_file(); | |
| 3403 FILE *fp_cpp = map.def_file(); | |
| 3404 int idx = 0; | |
| 3405 OperandForm *op; | |
| 3406 OpClassForm *opc; | |
| 3407 InstructForm *inst; | |
| 3408 | |
| 3409 // Construct this mapping | |
| 3410 map.declaration(); | |
| 3411 fprintf(fp_cpp,"\n"); | |
| 3412 map.definition(); | |
| 3413 | |
| 3414 // Output the mapping for operands | |
| 3415 map.record_position(OutputMap::BEGIN_OPERANDS, idx ); | |
| 3416 _operands.reset(); | |
| 3417 for(; (op = (OperandForm*)_operands.iter()) != NULL; ) { | |
| 3418 // Ensure this is a machine-world instruction | |
| 3419 if ( op->ideal_only() ) continue; | |
| 3420 | |
| 3421 // Generate the entry for this opcode | |
| 3422 map.map(*op); fprintf(fp_cpp, ", // %d\n", idx); | |
| 3423 ++idx; | |
| 3424 }; | |
| 3425 fprintf(fp_cpp, " // last operand\n"); | |
| 3426 | |
| 3427 // Place all user-defined operand classes into the mapping | |
| 3428 map.record_position(OutputMap::BEGIN_OPCLASSES, idx ); | |
| 3429 _opclass.reset(); | |
| 3430 for(; (opc = (OpClassForm*)_opclass.iter()) != NULL; ) { | |
| 3431 map.map(*opc); fprintf(fp_cpp, ", // %d\n", idx); | |
| 3432 ++idx; | |
| 3433 }; | |
| 3434 fprintf(fp_cpp, " // last operand class\n"); | |
| 3435 | |
| 3436 // Place all internally defined operands into the mapping | |
| 3437 map.record_position(OutputMap::BEGIN_INTERNALS, idx ); | |
| 3438 _internalOpNames.reset(); | |
| 3439 char *name = NULL; | |
| 3440 for(; (name = (char *)_internalOpNames.iter()) != NULL; ) { | |
| 3441 map.map(name); fprintf(fp_cpp, ", // %d\n", idx); | |
| 3442 ++idx; | |
| 3443 }; | |
| 3444 fprintf(fp_cpp, " // last internally defined operand\n"); | |
| 3445 | |
| 3446 // Place all user-defined instructions into the mapping | |
| 3447 if( map.do_instructions() ) { | |
| 3448 map.record_position(OutputMap::BEGIN_INSTRUCTIONS, idx ); | |
| 3449 // Output all simple instruction chain rules first | |
| 3450 map.record_position(OutputMap::BEGIN_INST_CHAIN_RULES, idx ); | |
| 3451 { | |
| 3452 _instructions.reset(); | |
| 3453 for(; (inst = (InstructForm*)_instructions.iter()) != NULL; ) { | |
| 3454 // Ensure this is a machine-world instruction | |
| 3455 if ( inst->ideal_only() ) continue; | |
| 3456 if ( ! inst->is_simple_chain_rule(_globalNames) ) continue; | |
| 3457 if ( inst->rematerialize(_globalNames, get_registers()) ) continue; | |
| 3458 | |
| 3459 map.map(*inst); fprintf(fp_cpp, ", // %d\n", idx); | |
| 3460 ++idx; | |
| 3461 }; | |
| 3462 map.record_position(OutputMap::BEGIN_REMATERIALIZE, idx ); | |
| 3463 _instructions.reset(); | |
| 3464 for(; (inst = (InstructForm*)_instructions.iter()) != NULL; ) { | |
| 3465 // Ensure this is a machine-world instruction | |
| 3466 if ( inst->ideal_only() ) continue; | |
| 3467 if ( ! inst->is_simple_chain_rule(_globalNames) ) continue; | |
| 3468 if ( ! inst->rematerialize(_globalNames, get_registers()) ) continue; | |
| 3469 | |
| 3470 map.map(*inst); fprintf(fp_cpp, ", // %d\n", idx); | |
| 3471 ++idx; | |
| 3472 }; | |
| 3473 map.record_position(OutputMap::END_INST_CHAIN_RULES, idx ); | |
| 3474 } | |
| 3475 // Output all instructions that are NOT simple chain rules | |
| 3476 { | |
| 3477 _instructions.reset(); | |
| 3478 for(; (inst = (InstructForm*)_instructions.iter()) != NULL; ) { | |
| 3479 // Ensure this is a machine-world instruction | |
| 3480 if ( inst->ideal_only() ) continue; | |
| 3481 if ( inst->is_simple_chain_rule(_globalNames) ) continue; | |
| 3482 if ( ! inst->rematerialize(_globalNames, get_registers()) ) continue; | |
| 3483 | |
| 3484 map.map(*inst); fprintf(fp_cpp, ", // %d\n", idx); | |
| 3485 ++idx; | |
| 3486 }; | |
| 3487 map.record_position(OutputMap::END_REMATERIALIZE, idx ); | |
| 3488 _instructions.reset(); | |
| 3489 for(; (inst = (InstructForm*)_instructions.iter()) != NULL; ) { | |
| 3490 // Ensure this is a machine-world instruction | |
| 3491 if ( inst->ideal_only() ) continue; | |
| 3492 if ( inst->is_simple_chain_rule(_globalNames) ) continue; | |
| 3493 if ( inst->rematerialize(_globalNames, get_registers()) ) continue; | |
| 3494 | |
| 3495 map.map(*inst); fprintf(fp_cpp, ", // %d\n", idx); | |
| 3496 ++idx; | |
| 3497 }; | |
| 3498 } | |
| 3499 fprintf(fp_cpp, " // last instruction\n"); | |
| 3500 map.record_position(OutputMap::END_INSTRUCTIONS, idx ); | |
| 3501 } | |
| 3502 // Finish defining table | |
| 3503 map.closing(); | |
| 3504 }; | |
| 3505 | |
| 3506 | |
| 3507 // Helper function for buildReduceMaps | |
| 3508 char reg_save_policy(const char *calling_convention) { | |
| 3509 char callconv; | |
| 3510 | |
| 3511 if (!strcmp(calling_convention, "NS")) callconv = 'N'; | |
| 3512 else if (!strcmp(calling_convention, "SOE")) callconv = 'E'; | |
| 3513 else if (!strcmp(calling_convention, "SOC")) callconv = 'C'; | |
| 3514 else if (!strcmp(calling_convention, "AS")) callconv = 'A'; | |
| 3515 else callconv = 'Z'; | |
| 3516 | |
| 3517 return callconv; | |
| 3518 } | |
| 3519 | |
| 3520 //---------------------------generate_assertion_checks------------------- | |
| 3521 void ArchDesc::generate_adlc_verification(FILE *fp_cpp) { | |
| 3522 fprintf(fp_cpp, "\n"); | |
| 3523 | |
| 3524 fprintf(fp_cpp, "#ifndef PRODUCT\n"); | |
| 3525 fprintf(fp_cpp, "void Compile::adlc_verification() {\n"); | |
| 3526 globalDefs().print_asserts(fp_cpp); | |
| 3527 fprintf(fp_cpp, "}\n"); | |
| 3528 fprintf(fp_cpp, "#endif\n"); | |
| 3529 fprintf(fp_cpp, "\n"); | |
| 3530 } | |
| 3531 | |
| 3532 //---------------------------addSourceBlocks----------------------------- | |
| 3533 void ArchDesc::addSourceBlocks(FILE *fp_cpp) { | |
| 3534 if (_source.count() > 0) | |
| 3535 _source.output(fp_cpp); | |
| 3536 | |
| 3537 generate_adlc_verification(fp_cpp); | |
| 3538 } | |
| 3539 //---------------------------addHeaderBlocks----------------------------- | |
| 3540 void ArchDesc::addHeaderBlocks(FILE *fp_hpp) { | |
| 3541 if (_header.count() > 0) | |
| 3542 _header.output(fp_hpp); | |
| 3543 } | |
| 3544 //-------------------------addPreHeaderBlocks---------------------------- | |
| 3545 void ArchDesc::addPreHeaderBlocks(FILE *fp_hpp) { | |
| 3546 // Output #defines from definition block | |
| 3547 globalDefs().print_defines(fp_hpp); | |
| 3548 | |
| 3549 if (_pre_header.count() > 0) | |
| 3550 _pre_header.output(fp_hpp); | |
| 3551 } | |
| 3552 | |
| 3553 //---------------------------buildReduceMaps----------------------------- | |
| 3554 // Build mapping from enumeration for densely packed operands | |
| 3555 // TO result and child types. | |
| 3556 void ArchDesc::buildReduceMaps(FILE *fp_hpp, FILE *fp_cpp) { | |
| 3557 RegDef *rdef; | |
| 3558 RegDef *next; | |
| 3559 | |
| 3560 // The emit bodies currently require functions defined in the source block. | |
| 3561 | |
| 3562 // Build external declarations for mappings | |
| 3563 fprintf(fp_hpp, "\n"); | |
| 3564 fprintf(fp_hpp, "extern const char register_save_policy[];\n"); | |
| 3565 fprintf(fp_hpp, "extern const char c_reg_save_policy[];\n"); | |
| 3566 fprintf(fp_hpp, "extern const int register_save_type[];\n"); | |
| 3567 fprintf(fp_hpp, "\n"); | |
| 3568 | |
| 3569 // Construct Save-Policy array | |
| 3570 fprintf(fp_cpp, "// Map from machine-independent register number to register_save_policy\n"); | |
| 3571 fprintf(fp_cpp, "const char register_save_policy[] = {\n"); | |
| 3572 _register->reset_RegDefs(); | |
| 3573 for( rdef = _register->iter_RegDefs(); rdef != NULL; rdef = next ) { | |
| 3574 next = _register->iter_RegDefs(); | |
| 3575 char policy = reg_save_policy(rdef->_callconv); | |
| 3576 const char *comma = (next != NULL) ? "," : " // no trailing comma"; | |
| 3577 fprintf(fp_cpp, " '%c'%s\n", policy, comma); | |
| 3578 } | |
| 3579 fprintf(fp_cpp, "};\n\n"); | |
| 3580 | |
| 3581 // Construct Native Save-Policy array | |
| 3582 fprintf(fp_cpp, "// Map from machine-independent register number to c_reg_save_policy\n"); | |
| 3583 fprintf(fp_cpp, "const char c_reg_save_policy[] = {\n"); | |
| 3584 _register->reset_RegDefs(); | |
| 3585 for( rdef = _register->iter_RegDefs(); rdef != NULL; rdef = next ) { | |
| 3586 next = _register->iter_RegDefs(); | |
| 3587 char policy = reg_save_policy(rdef->_c_conv); | |
| 3588 const char *comma = (next != NULL) ? "," : " // no trailing comma"; | |
| 3589 fprintf(fp_cpp, " '%c'%s\n", policy, comma); | |
| 3590 } | |
| 3591 fprintf(fp_cpp, "};\n\n"); | |
| 3592 | |
| 3593 // Construct Register Save Type array | |
| 3594 fprintf(fp_cpp, "// Map from machine-independent register number to register_save_type\n"); | |
| 3595 fprintf(fp_cpp, "const int register_save_type[] = {\n"); | |
| 3596 _register->reset_RegDefs(); | |
| 3597 for( rdef = _register->iter_RegDefs(); rdef != NULL; rdef = next ) { | |
| 3598 next = _register->iter_RegDefs(); | |
| 3599 const char *comma = (next != NULL) ? "," : " // no trailing comma"; | |
| 3600 fprintf(fp_cpp, " %s%s\n", rdef->_idealtype, comma); | |
| 3601 } | |
| 3602 fprintf(fp_cpp, "};\n\n"); | |
| 3603 | |
| 3604 // Construct the table for reduceOp | |
| 3605 OutputReduceOp output_reduce_op(fp_hpp, fp_cpp, _globalNames, *this); | |
| 3606 build_map(output_reduce_op); | |
| 3607 // Construct the table for leftOp | |
| 3608 OutputLeftOp output_left_op(fp_hpp, fp_cpp, _globalNames, *this); | |
| 3609 build_map(output_left_op); | |
| 3610 // Construct the table for rightOp | |
| 3611 OutputRightOp output_right_op(fp_hpp, fp_cpp, _globalNames, *this); | |
| 3612 build_map(output_right_op); | |
| 3613 // Construct the table of rule names | |
| 3614 OutputRuleName output_rule_name(fp_hpp, fp_cpp, _globalNames, *this); | |
| 3615 build_map(output_rule_name); | |
| 3616 // Construct the boolean table for subsumed operands | |
| 3617 OutputSwallowed output_swallowed(fp_hpp, fp_cpp, _globalNames, *this); | |
| 3618 build_map(output_swallowed); | |
| 3619 // // // Preserve in case we decide to use this table instead of another | |
| 3620 //// Construct the boolean table for instruction chain rules | |
| 3621 //OutputInstChainRule output_inst_chain(fp_hpp, fp_cpp, _globalNames, *this); | |
| 3622 //build_map(output_inst_chain); | |
| 3623 | |
| 3624 } | |
| 3625 | |
| 3626 | |
| 3627 //---------------------------buildMachOperGenerator--------------------------- | |
| 3628 | |
| 3629 // Recurse through match tree, building path through corresponding state tree, | |
| 3630 // Until we reach the constant we are looking for. | |
| 3631 static void path_to_constant(FILE *fp, FormDict &globals, | |
| 3632 MatchNode *mnode, uint idx) { | |
| 3633 if ( ! mnode) return; | |
| 3634 | |
| 3635 unsigned position = 0; | |
| 3636 const char *result = NULL; | |
| 3637 const char *name = NULL; | |
| 3638 const char *optype = NULL; | |
| 3639 | |
| 3640 // Base Case: access constant in ideal node linked to current state node | |
| 3641 // Each type of constant has its own access function | |
| 3642 if ( (mnode->_lChild == NULL) && (mnode->_rChild == NULL) | |
| 3643 && mnode->base_operand(position, globals, result, name, optype) ) { | |
| 3644 if ( strcmp(optype,"ConI") == 0 ) { | |
| 3645 fprintf(fp, "_leaf->get_int()"); | |
| 3646 } else if ( (strcmp(optype,"ConP") == 0) ) { | |
| 3647 fprintf(fp, "_leaf->bottom_type()->is_ptr()"); | |
|
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|
3648 } else if ( (strcmp(optype,"ConN") == 0) ) { |
|
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|
3649 fprintf(fp, "_leaf->bottom_type()->is_narrowoop()"); |
| 0 | 3650 } else if ( (strcmp(optype,"ConF") == 0) ) { |
| 3651 fprintf(fp, "_leaf->getf()"); | |
| 3652 } else if ( (strcmp(optype,"ConD") == 0) ) { | |
| 3653 fprintf(fp, "_leaf->getd()"); | |
| 3654 } else if ( (strcmp(optype,"ConL") == 0) ) { | |
| 3655 fprintf(fp, "_leaf->get_long()"); | |
| 3656 } else if ( (strcmp(optype,"Con")==0) ) { | |
| 3657 // !!!!! - Update if adding a machine-independent constant type | |
| 3658 fprintf(fp, "_leaf->get_int()"); | |
| 3659 assert( false, "Unsupported constant type, pointer or indefinite"); | |
| 3660 } else if ( (strcmp(optype,"Bool") == 0) ) { | |
| 3661 fprintf(fp, "_leaf->as_Bool()->_test._test"); | |
| 3662 } else { | |
| 3663 assert( false, "Unsupported constant type"); | |
| 3664 } | |
| 3665 return; | |
| 3666 } | |
| 3667 | |
| 3668 // If constant is in left child, build path and recurse | |
| 3669 uint lConsts = (mnode->_lChild) ? (mnode->_lChild->num_consts(globals) ) : 0; | |
| 3670 uint rConsts = (mnode->_rChild) ? (mnode->_rChild->num_consts(globals) ) : 0; | |
| 3671 if ( (mnode->_lChild) && (lConsts > idx) ) { | |
| 3672 fprintf(fp, "_kids[0]->"); | |
| 3673 path_to_constant(fp, globals, mnode->_lChild, idx); | |
| 3674 return; | |
| 3675 } | |
| 3676 // If constant is in right child, build path and recurse | |
| 3677 if ( (mnode->_rChild) && (rConsts > (idx - lConsts) ) ) { | |
| 3678 idx = idx - lConsts; | |
| 3679 fprintf(fp, "_kids[1]->"); | |
| 3680 path_to_constant(fp, globals, mnode->_rChild, idx); | |
| 3681 return; | |
| 3682 } | |
| 3683 assert( false, "ShouldNotReachHere()"); | |
| 3684 } | |
| 3685 | |
| 3686 // Generate code that is executed when generating a specific Machine Operand | |
| 3687 static void genMachOperCase(FILE *fp, FormDict &globalNames, ArchDesc &AD, | |
| 3688 OperandForm &op) { | |
| 3689 const char *opName = op._ident; | |
| 3690 const char *opEnumName = AD.machOperEnum(opName); | |
| 3691 uint num_consts = op.num_consts(globalNames); | |
| 3692 | |
| 3693 // Generate the case statement for this opcode | |
| 3694 fprintf(fp, " case %s:", opEnumName); | |
| 3695 fprintf(fp, "\n return new (C) %sOper(", opName); | |
| 3696 // Access parameters for constructor from the stat object | |
| 3697 // | |
| 3698 // Build access to condition code value | |
| 3699 if ( (num_consts > 0) ) { | |
| 3700 uint i = 0; | |
| 3701 path_to_constant(fp, globalNames, op._matrule, i); | |
| 3702 for ( i = 1; i < num_consts; ++i ) { | |
| 3703 fprintf(fp, ", "); | |
| 3704 path_to_constant(fp, globalNames, op._matrule, i); | |
| 3705 } | |
| 3706 } | |
| 3707 fprintf(fp, " );\n"); | |
| 3708 } | |
| 3709 | |
| 3710 | |
| 3711 // Build switch to invoke "new" MachNode or MachOper | |
| 3712 void ArchDesc::buildMachOperGenerator(FILE *fp_cpp) { | |
| 3713 int idx = 0; | |
| 3714 | |
| 3715 // Build switch to invoke 'new' for a specific MachOper | |
| 3716 fprintf(fp_cpp, "\n"); | |
| 3717 fprintf(fp_cpp, "\n"); | |
| 3718 fprintf(fp_cpp, | |
| 3719 "//------------------------- MachOper Generator ---------------\n"); | |
| 3720 fprintf(fp_cpp, | |
| 3721 "// A switch statement on the dense-packed user-defined type system\n" | |
| 3722 "// that invokes 'new' on the corresponding class constructor.\n"); | |
| 3723 fprintf(fp_cpp, "\n"); | |
| 3724 fprintf(fp_cpp, "MachOper *State::MachOperGenerator"); | |
| 3725 fprintf(fp_cpp, "(int opcode, Compile* C)"); | |
| 3726 fprintf(fp_cpp, "{\n"); | |
| 3727 fprintf(fp_cpp, "\n"); | |
| 3728 fprintf(fp_cpp, " switch(opcode) {\n"); | |
| 3729 | |
| 3730 // Place all user-defined operands into the mapping | |
| 3731 _operands.reset(); | |
| 3732 int opIndex = 0; | |
| 3733 OperandForm *op; | |
| 3734 for( ; (op = (OperandForm*)_operands.iter()) != NULL; ) { | |
| 3735 // Ensure this is a machine-world instruction | |
| 3736 if ( op->ideal_only() ) continue; | |
| 3737 | |
| 3738 genMachOperCase(fp_cpp, _globalNames, *this, *op); | |
| 3739 }; | |
| 3740 | |
| 3741 // Do not iterate over operand classes for the operand generator!!! | |
| 3742 | |
| 3743 // Place all internal operands into the mapping | |
| 3744 _internalOpNames.reset(); | |
| 3745 const char *iopn; | |
| 3746 for( ; (iopn = _internalOpNames.iter()) != NULL; ) { | |
| 3747 const char *opEnumName = machOperEnum(iopn); | |
| 3748 // Generate the case statement for this opcode | |
| 3749 fprintf(fp_cpp, " case %s:", opEnumName); | |
| 3750 fprintf(fp_cpp, " return NULL;\n"); | |
| 3751 }; | |
| 3752 | |
| 3753 // Generate the default case for switch(opcode) | |
| 3754 fprintf(fp_cpp, " \n"); | |
| 3755 fprintf(fp_cpp, " default:\n"); | |
| 3756 fprintf(fp_cpp, " fprintf(stderr, \"Default MachOper Generator invoked for: \\n\");\n"); | |
| 3757 fprintf(fp_cpp, " fprintf(stderr, \" opcode = %cd\\n\", opcode);\n", '%'); | |
| 3758 fprintf(fp_cpp, " break;\n"); | |
| 3759 fprintf(fp_cpp, " }\n"); | |
| 3760 | |
| 3761 // Generate the closing for method Matcher::MachOperGenerator | |
| 3762 fprintf(fp_cpp, " return NULL;\n"); | |
| 3763 fprintf(fp_cpp, "};\n"); | |
| 3764 } | |
| 3765 | |
| 3766 | |
| 3767 //---------------------------buildMachNode------------------------------------- | |
| 3768 // Build a new MachNode, for MachNodeGenerator or cisc-spilling | |
| 3769 void ArchDesc::buildMachNode(FILE *fp_cpp, InstructForm *inst, const char *indent) { | |
| 3770 const char *opType = NULL; | |
| 3771 const char *opClass = inst->_ident; | |
| 3772 | |
| 3773 // Create the MachNode object | |
| 3774 fprintf(fp_cpp, "%s %sNode *node = new (C) %sNode();\n",indent, opClass,opClass); | |
| 3775 | |
| 3776 if ( (inst->num_post_match_opnds() != 0) ) { | |
| 3777 // Instruction that contains operands which are not in match rule. | |
| 3778 // | |
| 3779 // Check if the first post-match component may be an interesting def | |
| 3780 bool dont_care = false; | |
| 3781 ComponentList &comp_list = inst->_components; | |
| 3782 Component *comp = NULL; | |
| 3783 comp_list.reset(); | |
| 3784 if ( comp_list.match_iter() != NULL ) dont_care = true; | |
| 3785 | |
| 3786 // Insert operands that are not in match-rule. | |
| 3787 // Only insert a DEF if the do_care flag is set | |
| 3788 comp_list.reset(); | |
| 3789 while ( comp = comp_list.post_match_iter() ) { | |
| 3790 // Check if we don't care about DEFs or KILLs that are not USEs | |
| 3791 if ( dont_care && (! comp->isa(Component::USE)) ) { | |
| 3792 continue; | |
| 3793 } | |
| 3794 dont_care = true; | |
| 3795 // For each operand not in the match rule, call MachOperGenerator | |
|
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2008
diff
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|
3796 // with the enum for the opcode that needs to be built. |
| 0 | 3797 ComponentList clist = inst->_components; |
| 3798 int index = clist.operand_position(comp->_name, comp->_usedef); | |
| 3799 const char *opcode = machOperEnum(comp->_type); | |
| 3800 fprintf(fp_cpp, "%s node->set_opnd_array(%d, ", indent, index); | |
| 3801 fprintf(fp_cpp, "MachOperGenerator(%s, C));\n", opcode); | |
| 3802 } | |
| 3803 } | |
| 3804 else if ( inst->is_chain_of_constant(_globalNames, opType) ) { | |
| 3805 // An instruction that chains from a constant! | |
| 3806 // In this case, we need to subsume the constant into the node | |
| 3807 // at operand position, oper_input_base(). | |
| 3808 // | |
| 3809 // Fill in the constant | |
| 3810 fprintf(fp_cpp, "%s node->_opnd_array[%d] = ", indent, | |
| 3811 inst->oper_input_base(_globalNames)); | |
| 3812 // ##### | |
| 3813 // Check for multiple constants and then fill them in. | |
| 3814 // Just like MachOperGenerator | |
| 3815 const char *opName = inst->_matrule->_rChild->_opType; | |
| 3816 fprintf(fp_cpp, "new (C) %sOper(", opName); | |
| 3817 // Grab operand form | |
| 3818 OperandForm *op = (_globalNames[opName])->is_operand(); | |
| 3819 // Look up the number of constants | |
| 3820 uint num_consts = op->num_consts(_globalNames); | |
| 3821 if ( (num_consts > 0) ) { | |
| 3822 uint i = 0; | |
| 3823 path_to_constant(fp_cpp, _globalNames, op->_matrule, i); | |
| 3824 for ( i = 1; i < num_consts; ++i ) { | |
| 3825 fprintf(fp_cpp, ", "); | |
| 3826 path_to_constant(fp_cpp, _globalNames, op->_matrule, i); | |
| 3827 } | |
| 3828 } | |
| 3829 fprintf(fp_cpp, " );\n"); | |
| 3830 // ##### | |
| 3831 } | |
| 3832 | |
| 3833 // Fill in the bottom_type where requested | |
|
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diff
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|
3834 if ( inst->captures_bottom_type(_globalNames) ) { |
| 0 | 3835 fprintf(fp_cpp, "%s node->_bottom_type = _leaf->bottom_type();\n", indent); |
| 3836 } | |
| 3837 if( inst->is_ideal_if() ) { | |
| 3838 fprintf(fp_cpp, "%s node->_prob = _leaf->as_If()->_prob;\n", indent); | |
| 3839 fprintf(fp_cpp, "%s node->_fcnt = _leaf->as_If()->_fcnt;\n", indent); | |
| 3840 } | |
| 3841 if( inst->is_ideal_fastlock() ) { | |
| 3842 fprintf(fp_cpp, "%s node->_counters = _leaf->as_FastLock()->counters();\n", indent); | |
| 3843 } | |
| 3844 | |
| 3845 } | |
| 3846 | |
| 3847 //---------------------------declare_cisc_version------------------------------ | |
| 3848 // Build CISC version of this instruction | |
| 3849 void InstructForm::declare_cisc_version(ArchDesc &AD, FILE *fp_hpp) { | |
| 3850 if( AD.can_cisc_spill() ) { | |
| 3851 InstructForm *inst_cisc = cisc_spill_alternate(); | |
| 3852 if (inst_cisc != NULL) { | |
| 3853 fprintf(fp_hpp, " virtual int cisc_operand() const { return %d; }\n", cisc_spill_operand()); | |
| 3854 fprintf(fp_hpp, " virtual MachNode *cisc_version(int offset, Compile* C);\n"); | |
| 3855 fprintf(fp_hpp, " virtual void use_cisc_RegMask();\n"); | |
| 3856 fprintf(fp_hpp, " virtual const RegMask *cisc_RegMask() const { return _cisc_RegMask; }\n"); | |
| 3857 } | |
| 3858 } | |
| 3859 } | |
| 3860 | |
| 3861 //---------------------------define_cisc_version------------------------------- | |
| 3862 // Build CISC version of this instruction | |
| 3863 bool InstructForm::define_cisc_version(ArchDesc &AD, FILE *fp_cpp) { | |
| 3864 InstructForm *inst_cisc = this->cisc_spill_alternate(); | |
| 3865 if( AD.can_cisc_spill() && (inst_cisc != NULL) ) { | |
| 3866 const char *name = inst_cisc->_ident; | |
| 3867 assert( inst_cisc->num_opnds() == this->num_opnds(), "Must have same number of operands"); | |
| 3868 OperandForm *cisc_oper = AD.cisc_spill_operand(); | |
| 3869 assert( cisc_oper != NULL, "insanity check"); | |
| 3870 const char *cisc_oper_name = cisc_oper->_ident; | |
| 3871 assert( cisc_oper_name != NULL, "insanity check"); | |
| 3872 // | |
| 3873 // Set the correct reg_mask_or_stack for the cisc operand | |
| 3874 fprintf(fp_cpp, "\n"); | |
| 3875 fprintf(fp_cpp, "void %sNode::use_cisc_RegMask() {\n", this->_ident); | |
| 3876 // Lookup the correct reg_mask_or_stack | |
| 3877 const char *reg_mask_name = cisc_reg_mask_name(); | |
| 3878 fprintf(fp_cpp, " _cisc_RegMask = &STACK_OR_%s;\n", reg_mask_name); | |
| 3879 fprintf(fp_cpp, "}\n"); | |
| 3880 // | |
| 3881 // Construct CISC version of this instruction | |
| 3882 fprintf(fp_cpp, "\n"); | |
| 3883 fprintf(fp_cpp, "// Build CISC version of this instruction\n"); | |
| 3884 fprintf(fp_cpp, "MachNode *%sNode::cisc_version( int offset, Compile* C ) {\n", this->_ident); | |
| 3885 // Create the MachNode object | |
| 3886 fprintf(fp_cpp, " %sNode *node = new (C) %sNode();\n", name, name); | |
| 3887 // Fill in the bottom_type where requested | |
|
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|
3888 if ( this->captures_bottom_type(AD.globalNames()) ) { |
| 0 | 3889 fprintf(fp_cpp, " node->_bottom_type = bottom_type();\n"); |
| 3890 } | |
| 785 | 3891 |
| 3892 uint cur_num_opnds = num_opnds(); | |
| 3893 if (cur_num_opnds > 1 && cur_num_opnds != num_unique_opnds()) { | |
| 3894 fprintf(fp_cpp," node->_num_opnds = %d;\n", num_unique_opnds()); | |
| 3895 } | |
| 3896 | |
| 0 | 3897 fprintf(fp_cpp, "\n"); |
| 3898 fprintf(fp_cpp, " // Copy _idx, inputs and operands to new node\n"); | |
| 3899 fprintf(fp_cpp, " fill_new_machnode(node, C);\n"); | |
| 3900 // Construct operand to access [stack_pointer + offset] | |
| 3901 fprintf(fp_cpp, " // Construct operand to access [stack_pointer + offset]\n"); | |
| 3902 fprintf(fp_cpp, " node->set_opnd_array(cisc_operand(), new (C) %sOper(offset));\n", cisc_oper_name); | |
| 3903 fprintf(fp_cpp, "\n"); | |
| 3904 | |
| 3905 // Return result and exit scope | |
| 3906 fprintf(fp_cpp, " return node;\n"); | |
| 3907 fprintf(fp_cpp, "}\n"); | |
| 3908 fprintf(fp_cpp, "\n"); | |
| 3909 return true; | |
| 3910 } | |
| 3911 return false; | |
| 3912 } | |
| 3913 | |
| 3914 //---------------------------declare_short_branch_methods---------------------- | |
| 3915 // Build prototypes for short branch methods | |
| 3916 void InstructForm::declare_short_branch_methods(FILE *fp_hpp) { | |
| 3917 if (has_short_branch_form()) { | |
| 3918 fprintf(fp_hpp, " virtual MachNode *short_branch_version(Compile* C);\n"); | |
| 3919 } | |
| 3920 } | |
| 3921 | |
| 3922 //---------------------------define_short_branch_methods----------------------- | |
| 3923 // Build definitions for short branch methods | |
|
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|
3924 bool InstructForm::define_short_branch_methods(ArchDesc &AD, FILE *fp_cpp) { |
| 0 | 3925 if (has_short_branch_form()) { |
| 3926 InstructForm *short_branch = short_branch_form(); | |
| 3927 const char *name = short_branch->_ident; | |
| 3928 | |
| 3929 // Construct short_branch_version() method. | |
| 3930 fprintf(fp_cpp, "// Build short branch version of this instruction\n"); | |
| 3931 fprintf(fp_cpp, "MachNode *%sNode::short_branch_version(Compile* C) {\n", this->_ident); | |
| 3932 // Create the MachNode object | |
| 3933 fprintf(fp_cpp, " %sNode *node = new (C) %sNode();\n", name, name); | |
| 3934 if( is_ideal_if() ) { | |
| 3935 fprintf(fp_cpp, " node->_prob = _prob;\n"); | |
| 3936 fprintf(fp_cpp, " node->_fcnt = _fcnt;\n"); | |
| 3937 } | |
| 3938 // Fill in the bottom_type where requested | |
|
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|
3939 if ( this->captures_bottom_type(AD.globalNames()) ) { |
| 0 | 3940 fprintf(fp_cpp, " node->_bottom_type = bottom_type();\n"); |
| 3941 } | |
| 3942 | |
| 3943 fprintf(fp_cpp, "\n"); | |
| 3944 // Short branch version must use same node index for access | |
| 3945 // through allocator's tables | |
| 3946 fprintf(fp_cpp, " // Copy _idx, inputs and operands to new node\n"); | |
| 3947 fprintf(fp_cpp, " fill_new_machnode(node, C);\n"); | |
| 3948 | |
| 3949 // Return result and exit scope | |
| 3950 fprintf(fp_cpp, " return node;\n"); | |
| 3951 fprintf(fp_cpp, "}\n"); | |
| 3952 fprintf(fp_cpp,"\n"); | |
| 3953 return true; | |
| 3954 } | |
| 3955 return false; | |
| 3956 } | |
| 3957 | |
| 3958 | |
| 3959 //---------------------------buildMachNodeGenerator---------------------------- | |
| 3960 // Build switch to invoke appropriate "new" MachNode for an opcode | |
| 3961 void ArchDesc::buildMachNodeGenerator(FILE *fp_cpp) { | |
| 3962 | |
| 3963 // Build switch to invoke 'new' for a specific MachNode | |
| 3964 fprintf(fp_cpp, "\n"); | |
| 3965 fprintf(fp_cpp, "\n"); | |
| 3966 fprintf(fp_cpp, | |
| 3967 "//------------------------- MachNode Generator ---------------\n"); | |
| 3968 fprintf(fp_cpp, | |
| 3969 "// A switch statement on the dense-packed user-defined type system\n" | |
| 3970 "// that invokes 'new' on the corresponding class constructor.\n"); | |
| 3971 fprintf(fp_cpp, "\n"); | |
| 3972 fprintf(fp_cpp, "MachNode *State::MachNodeGenerator"); | |
| 3973 fprintf(fp_cpp, "(int opcode, Compile* C)"); | |
| 3974 fprintf(fp_cpp, "{\n"); | |
| 3975 fprintf(fp_cpp, " switch(opcode) {\n"); | |
| 3976 | |
| 3977 // Provide constructor for all user-defined instructions | |
| 3978 _instructions.reset(); | |
| 3979 int opIndex = operandFormCount(); | |
| 3980 InstructForm *inst; | |
| 3981 for( ; (inst = (InstructForm*)_instructions.iter()) != NULL; ) { | |
| 3982 // Ensure that matrule is defined. | |
| 3983 if ( inst->_matrule == NULL ) continue; | |
| 3984 | |
| 3985 int opcode = opIndex++; | |
| 3986 const char *opClass = inst->_ident; | |
| 3987 char *opType = NULL; | |
| 3988 | |
| 3989 // Generate the case statement for this instruction | |
| 3990 fprintf(fp_cpp, " case %s_rule:", opClass); | |
| 3991 | |
| 3992 // Start local scope | |
| 3993 fprintf(fp_cpp, " {\n"); | |
| 3994 // Generate code to construct the new MachNode | |
| 3995 buildMachNode(fp_cpp, inst, " "); | |
| 3996 // Return result and exit scope | |
| 3997 fprintf(fp_cpp, " return node;\n"); | |
| 3998 fprintf(fp_cpp, " }\n"); | |
| 3999 } | |
| 4000 | |
| 4001 // Generate the default case for switch(opcode) | |
| 4002 fprintf(fp_cpp, " \n"); | |
| 4003 fprintf(fp_cpp, " default:\n"); | |
| 4004 fprintf(fp_cpp, " fprintf(stderr, \"Default MachNode Generator invoked for: \\n\");\n"); | |
| 4005 fprintf(fp_cpp, " fprintf(stderr, \" opcode = %cd\\n\", opcode);\n", '%'); | |
| 4006 fprintf(fp_cpp, " break;\n"); | |
| 4007 fprintf(fp_cpp, " };\n"); | |
| 4008 | |
| 4009 // Generate the closing for method Matcher::MachNodeGenerator | |
| 4010 fprintf(fp_cpp, " return NULL;\n"); | |
| 4011 fprintf(fp_cpp, "}\n"); | |
| 4012 } | |
| 4013 | |
| 4014 | |
| 4015 //---------------------------buildInstructMatchCheck-------------------------- | |
| 4016 // Output the method to Matcher which checks whether or not a specific | |
| 4017 // instruction has a matching rule for the host architecture. | |
| 4018 void ArchDesc::buildInstructMatchCheck(FILE *fp_cpp) const { | |
| 4019 fprintf(fp_cpp, "\n\n"); | |
| 4020 fprintf(fp_cpp, "const bool Matcher::has_match_rule(int opcode) {\n"); | |
| 4021 fprintf(fp_cpp, " assert(_last_machine_leaf < opcode && opcode < _last_opcode, \"opcode in range\");\n"); | |
| 4022 fprintf(fp_cpp, " return _hasMatchRule[opcode];\n"); | |
| 4023 fprintf(fp_cpp, "}\n\n"); | |
| 4024 | |
| 4025 fprintf(fp_cpp, "const bool Matcher::_hasMatchRule[_last_opcode] = {\n"); | |
| 4026 int i; | |
| 4027 for (i = 0; i < _last_opcode - 1; i++) { | |
| 4028 fprintf(fp_cpp, " %-5s, // %s\n", | |
| 4029 _has_match_rule[i] ? "true" : "false", | |
| 4030 NodeClassNames[i]); | |
| 4031 } | |
| 4032 fprintf(fp_cpp, " %-5s // %s\n", | |
| 4033 _has_match_rule[i] ? "true" : "false", | |
| 4034 NodeClassNames[i]); | |
| 4035 fprintf(fp_cpp, "};\n"); | |
| 4036 } | |
| 4037 | |
| 4038 //---------------------------buildFrameMethods--------------------------------- | |
| 4039 // Output the methods to Matcher which specify frame behavior | |
| 4040 void ArchDesc::buildFrameMethods(FILE *fp_cpp) { | |
| 4041 fprintf(fp_cpp,"\n\n"); | |
| 4042 // Stack Direction | |
| 4043 fprintf(fp_cpp,"bool Matcher::stack_direction() const { return %s; }\n\n", | |
| 4044 _frame->_direction ? "true" : "false"); | |
| 4045 // Sync Stack Slots | |
| 4046 fprintf(fp_cpp,"int Compile::sync_stack_slots() const { return %s; }\n\n", | |
| 4047 _frame->_sync_stack_slots); | |
| 4048 // Java Stack Alignment | |
| 4049 fprintf(fp_cpp,"uint Matcher::stack_alignment_in_bytes() { return %s; }\n\n", | |
| 4050 _frame->_alignment); | |
| 4051 // Java Return Address Location | |
| 4052 fprintf(fp_cpp,"OptoReg::Name Matcher::return_addr() const {"); | |
| 4053 if (_frame->_return_addr_loc) { | |
| 4054 fprintf(fp_cpp," return OptoReg::Name(%s_num); }\n\n", | |
| 4055 _frame->_return_addr); | |
| 4056 } | |
| 4057 else { | |
| 4058 fprintf(fp_cpp," return OptoReg::stack2reg(%s); }\n\n", | |
| 4059 _frame->_return_addr); | |
| 4060 } | |
| 4061 // Java Stack Slot Preservation | |
| 4062 fprintf(fp_cpp,"uint Compile::in_preserve_stack_slots() "); | |
| 4063 fprintf(fp_cpp,"{ return %s; }\n\n", _frame->_in_preserve_slots); | |
| 4064 // Top Of Stack Slot Preservation, for both Java and C | |
| 4065 fprintf(fp_cpp,"uint Compile::out_preserve_stack_slots() "); | |
| 4066 fprintf(fp_cpp,"{ return SharedRuntime::out_preserve_stack_slots(); }\n\n"); | |
| 4067 // varargs C out slots killed | |
| 4068 fprintf(fp_cpp,"uint Compile::varargs_C_out_slots_killed() const "); | |
| 4069 fprintf(fp_cpp,"{ return %s; }\n\n", _frame->_varargs_C_out_slots_killed); | |
| 4070 // Java Argument Position | |
| 4071 fprintf(fp_cpp,"void Matcher::calling_convention(BasicType *sig_bt, VMRegPair *regs, uint length, bool is_outgoing) {\n"); | |
| 4072 fprintf(fp_cpp,"%s\n", _frame->_calling_convention); | |
| 4073 fprintf(fp_cpp,"}\n\n"); | |
| 4074 // Native Argument Position | |
| 4075 fprintf(fp_cpp,"void Matcher::c_calling_convention(BasicType *sig_bt, VMRegPair *regs, uint length) {\n"); | |
| 4076 fprintf(fp_cpp,"%s\n", _frame->_c_calling_convention); | |
| 4077 fprintf(fp_cpp,"}\n\n"); | |
| 4078 // Java Return Value Location | |
| 4079 fprintf(fp_cpp,"OptoRegPair Matcher::return_value(int ideal_reg, bool is_outgoing) {\n"); | |
| 4080 fprintf(fp_cpp,"%s\n", _frame->_return_value); | |
| 4081 fprintf(fp_cpp,"}\n\n"); | |
| 4082 // Native Return Value Location | |
| 4083 fprintf(fp_cpp,"OptoRegPair Matcher::c_return_value(int ideal_reg, bool is_outgoing) {\n"); | |
| 4084 fprintf(fp_cpp,"%s\n", _frame->_c_return_value); | |
| 4085 fprintf(fp_cpp,"}\n\n"); | |
| 4086 | |
| 4087 // Inline Cache Register, mask definition, and encoding | |
| 4088 fprintf(fp_cpp,"OptoReg::Name Matcher::inline_cache_reg() {"); | |
| 4089 fprintf(fp_cpp," return OptoReg::Name(%s_num); }\n\n", | |
| 4090 _frame->_inline_cache_reg); | |
| 4091 fprintf(fp_cpp,"int Matcher::inline_cache_reg_encode() {"); | |
| 4092 fprintf(fp_cpp," return _regEncode[inline_cache_reg()]; }\n\n"); | |
| 4093 | |
| 4094 // Interpreter's Method Oop Register, mask definition, and encoding | |
| 4095 fprintf(fp_cpp,"OptoReg::Name Matcher::interpreter_method_oop_reg() {"); | |
| 4096 fprintf(fp_cpp," return OptoReg::Name(%s_num); }\n\n", | |
| 4097 _frame->_interpreter_method_oop_reg); | |
| 4098 fprintf(fp_cpp,"int Matcher::interpreter_method_oop_reg_encode() {"); | |
| 4099 fprintf(fp_cpp," return _regEncode[interpreter_method_oop_reg()]; }\n\n"); | |
| 4100 | |
| 4101 // Interpreter's Frame Pointer Register, mask definition, and encoding | |
| 4102 fprintf(fp_cpp,"OptoReg::Name Matcher::interpreter_frame_pointer_reg() {"); | |
| 4103 if (_frame->_interpreter_frame_pointer_reg == NULL) | |
| 4104 fprintf(fp_cpp," return OptoReg::Bad; }\n\n"); | |
| 4105 else | |
| 4106 fprintf(fp_cpp," return OptoReg::Name(%s_num); }\n\n", | |
| 4107 _frame->_interpreter_frame_pointer_reg); | |
| 4108 | |
| 4109 // Frame Pointer definition | |
| 4110 /* CNC - I can not contemplate having a different frame pointer between | |
| 4111 Java and native code; makes my head hurt to think about it. | |
| 4112 fprintf(fp_cpp,"OptoReg::Name Matcher::frame_pointer() const {"); | |
| 4113 fprintf(fp_cpp," return OptoReg::Name(%s_num); }\n\n", | |
| 4114 _frame->_frame_pointer); | |
| 4115 */ | |
| 4116 // (Native) Frame Pointer definition | |
| 4117 fprintf(fp_cpp,"OptoReg::Name Matcher::c_frame_pointer() const {"); | |
| 4118 fprintf(fp_cpp," return OptoReg::Name(%s_num); }\n\n", | |
| 4119 _frame->_frame_pointer); | |
| 4120 | |
| 4121 // Number of callee-save + always-save registers for calling convention | |
| 4122 fprintf(fp_cpp, "// Number of callee-save + always-save registers\n"); | |
| 4123 fprintf(fp_cpp, "int Matcher::number_of_saved_registers() {\n"); | |
| 4124 RegDef *rdef; | |
| 4125 int nof_saved_registers = 0; | |
| 4126 _register->reset_RegDefs(); | |
| 4127 while( (rdef = _register->iter_RegDefs()) != NULL ) { | |
| 4128 if( !strcmp(rdef->_callconv, "SOE") || !strcmp(rdef->_callconv, "AS") ) | |
| 4129 ++nof_saved_registers; | |
| 4130 } | |
| 4131 fprintf(fp_cpp, " return %d;\n", nof_saved_registers); | |
| 4132 fprintf(fp_cpp, "};\n\n"); | |
| 4133 } | |
| 4134 | |
| 4135 | |
| 4136 | |
| 4137 | |
| 4138 static int PrintAdlcCisc = 0; | |
| 4139 //---------------------------identify_cisc_spilling---------------------------- | |
| 4140 // Get info for the CISC_oracle and MachNode::cisc_version() | |
| 4141 void ArchDesc::identify_cisc_spill_instructions() { | |
| 4142 | |
| 4143 // Find the user-defined operand for cisc-spilling | |
| 4144 if( _frame->_cisc_spilling_operand_name != NULL ) { | |
| 4145 const Form *form = _globalNames[_frame->_cisc_spilling_operand_name]; | |
| 4146 OperandForm *oper = form ? form->is_operand() : NULL; | |
| 4147 // Verify the user's suggestion | |
| 4148 if( oper != NULL ) { | |
| 4149 // Ensure that match field is defined. | |
| 4150 if ( oper->_matrule != NULL ) { | |
| 4151 MatchRule &mrule = *oper->_matrule; | |
| 4152 if( strcmp(mrule._opType,"AddP") == 0 ) { | |
| 4153 MatchNode *left = mrule._lChild; | |
| 4154 MatchNode *right= mrule._rChild; | |
| 4155 if( left != NULL && right != NULL ) { | |
| 4156 const Form *left_op = _globalNames[left->_opType]->is_operand(); | |
| 4157 const Form *right_op = _globalNames[right->_opType]->is_operand(); | |
| 4158 if( (left_op != NULL && right_op != NULL) | |
| 4159 && (left_op->interface_type(_globalNames) == Form::register_interface) | |
| 4160 && (right_op->interface_type(_globalNames) == Form::constant_interface) ) { | |
| 4161 // Successfully verified operand | |
| 4162 set_cisc_spill_operand( oper ); | |
| 4163 if( _cisc_spill_debug ) { | |
| 4164 fprintf(stderr, "\n\nVerified CISC-spill operand %s\n\n", oper->_ident); | |
| 4165 } | |
| 4166 } | |
| 4167 } | |
| 4168 } | |
| 4169 } | |
| 4170 } | |
| 4171 } | |
| 4172 | |
| 4173 if( cisc_spill_operand() != NULL ) { | |
| 4174 // N^2 comparison of instructions looking for a cisc-spilling version | |
| 4175 _instructions.reset(); | |
| 4176 InstructForm *instr; | |
| 4177 for( ; (instr = (InstructForm*)_instructions.iter()) != NULL; ) { | |
| 4178 // Ensure that match field is defined. | |
| 4179 if ( instr->_matrule == NULL ) continue; | |
| 4180 | |
| 4181 MatchRule &mrule = *instr->_matrule; | |
| 4182 Predicate *pred = instr->build_predicate(); | |
| 4183 | |
| 4184 // Grab the machine type of the operand | |
| 4185 const char *rootOp = instr->_ident; | |
| 4186 mrule._machType = rootOp; | |
| 4187 | |
| 4188 // Find result type for match | |
| 4189 const char *result = instr->reduce_result(); | |
| 4190 | |
| 4191 if( PrintAdlcCisc ) fprintf(stderr, " new instruction %s \n", instr->_ident ? instr->_ident : " "); | |
| 4192 bool found_cisc_alternate = false; | |
| 4193 _instructions.reset2(); | |
| 4194 InstructForm *instr2; | |
| 4195 for( ; !found_cisc_alternate && (instr2 = (InstructForm*)_instructions.iter2()) != NULL; ) { | |
| 4196 // Ensure that match field is defined. | |
| 4197 if( PrintAdlcCisc ) fprintf(stderr, " instr2 == %s \n", instr2->_ident ? instr2->_ident : " "); | |
| 4198 if ( instr2->_matrule != NULL | |
| 4199 && (instr != instr2 ) // Skip self | |
| 4200 && (instr2->reduce_result() != NULL) // want same result | |
| 4201 && (strcmp(result, instr2->reduce_result()) == 0)) { | |
| 4202 MatchRule &mrule2 = *instr2->_matrule; | |
| 4203 Predicate *pred2 = instr2->build_predicate(); | |
| 4204 found_cisc_alternate = instr->cisc_spills_to(*this, instr2); | |
| 4205 } | |
| 4206 } | |
| 4207 } | |
| 4208 } | |
| 4209 } | |
| 4210 | |
| 4211 //---------------------------build_cisc_spilling------------------------------- | |
| 4212 // Get info for the CISC_oracle and MachNode::cisc_version() | |
| 4213 void ArchDesc::build_cisc_spill_instructions(FILE *fp_hpp, FILE *fp_cpp) { | |
| 4214 // Output the table for cisc spilling | |
| 4215 fprintf(fp_cpp, "// The following instructions can cisc-spill\n"); | |
| 4216 _instructions.reset(); | |
| 4217 InstructForm *inst = NULL; | |
| 4218 for(; (inst = (InstructForm*)_instructions.iter()) != NULL; ) { | |
| 4219 // Ensure this is a machine-world instruction | |
| 4220 if ( inst->ideal_only() ) continue; | |
| 4221 const char *inst_name = inst->_ident; | |
| 4222 int operand = inst->cisc_spill_operand(); | |
| 4223 if( operand != AdlcVMDeps::Not_cisc_spillable ) { | |
| 4224 InstructForm *inst2 = inst->cisc_spill_alternate(); | |
| 4225 fprintf(fp_cpp, "// %s can cisc-spill operand %d to %s\n", inst->_ident, operand, inst2->_ident); | |
| 4226 } | |
| 4227 } | |
| 4228 fprintf(fp_cpp, "\n\n"); | |
| 4229 } | |
| 4230 | |
| 4231 //---------------------------identify_short_branches---------------------------- | |
| 4232 // Get info for our short branch replacement oracle. | |
| 4233 void ArchDesc::identify_short_branches() { | |
| 4234 // Walk over all instructions, checking to see if they match a short | |
| 4235 // branching alternate. | |
| 4236 _instructions.reset(); | |
| 4237 InstructForm *instr; | |
| 4238 while( (instr = (InstructForm*)_instructions.iter()) != NULL ) { | |
| 4239 // The instruction must have a match rule. | |
| 4240 if (instr->_matrule != NULL && | |
| 4241 instr->is_short_branch()) { | |
| 4242 | |
| 4243 _instructions.reset2(); | |
| 4244 InstructForm *instr2; | |
| 4245 while( (instr2 = (InstructForm*)_instructions.iter2()) != NULL ) { | |
| 4246 instr2->check_branch_variant(*this, instr); | |
| 4247 } | |
| 4248 } | |
| 4249 } | |
| 4250 } | |
| 4251 | |
| 4252 | |
| 4253 //---------------------------identify_unique_operands--------------------------- | |
| 4254 // Identify unique operands. | |
| 4255 void ArchDesc::identify_unique_operands() { | |
| 4256 // Walk over all instructions. | |
| 4257 _instructions.reset(); | |
| 4258 InstructForm *instr; | |
| 4259 while( (instr = (InstructForm*)_instructions.iter()) != NULL ) { | |
| 4260 // Ensure this is a machine-world instruction | |
| 4261 if (!instr->ideal_only()) { | |
| 4262 instr->set_unique_opnds(); | |
| 4263 } | |
| 4264 } | |
| 4265 } |