nsz Git - libfirm/blob - ir/be/mips/mips_new_nodes.c

   1 /*
   2  * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
   3  *
   4  * This file is part of libFirm.
   5  *
   6  * This file may be distributed and/or modified under the terms of the
   7  * GNU General Public License version 2 as published by the Free Software
   8  * Foundation and appearing in the file LICENSE.GPL included in the
   9  * packaging of this file.
  10  *
  11  * Licensees holding valid libFirm Professional Edition licenses may use
  12  * this file in accordance with the libFirm Commercial License.
  13  * Agreement provided with the Software.
  14  *
  15  * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
  16  * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  17  * PURPOSE.
  18  */
  19
  20 /**
  21  * @file
  22  * @brief    This file implements the creation of the architecture specific firm
  23  *           opcodes and the corresponding node constructors for the MIPS
  24  *           assembler irg.
  25  * @author   Matthias Braun, Mehdi
  26  * @version  $Id$
  27  */
  28 #include "config.h"
  29
  30 #include <stdlib.h>
  31
  32 #include "irprog_t.h"
  33 #include "irgraph_t.h"
  34 #include "irnode_t.h"
  35 #include "irmode_t.h"
  36 #include "ircons_t.h"
  37 #include "iropt_t.h"
  38 #include "irop.h"
  39 #include "firm_common_t.h"
  40 #include "irvrfy_t.h"
  41 #include "irprintf.h"
  42 #include "xmalloc.h"
  43
  44 #include "../bearch_t.h"
  45
  46 #include "mips_nodes_attr.h"
  47 #include "mips_new_nodes.h"
  48 #include "gen_mips_regalloc_if.h"
  49
  50
  51
  52 /***********************************************************************************
  53  *      _                                   _       _             __
  54  *     | |                                 (_)     | |           / _|
  55  *   __| |_   _ _ __ ___  _ __   ___ _ __   _ _ __ | |_ ___ _ __| |_ __ _  ___ ___
  56  *  / _` | | | | '_ ` _ \| '_ \ / _ \ '__| | | '_ \| __/ _ \ '__|  _/ _` |/ __/ _ \
  57  * | (_| | |_| | | | | | | |_) |  __/ |    | | | | | ||  __/ |  | || (_| | (_|  __/
  58  *  \__,_|\__,_|_| |_| |_| .__/ \___|_|    |_|_| |_|\__\___|_|  |_| \__,_|\___\___|
  59  *                       | |
  60  *                       |_|
  61  ***********************************************************************************/
  62
  63 /**
  64  * Dumps the register requirements for either in or out.
  65  */
  66 static void dump_reg_req(FILE *F, ir_node *n, const arch_register_req_t **reqs,
  67                          int inout)
  68 {
  69         const mips_attr_t *attr = get_mips_attr_const(n);
  70         char *dir = inout ? "out" : "in";
  71         int   max = inout ? (int) arch_irn_get_n_outs(n) : get_irn_arity(n);
  72         char  buf[1024];
  73         int   i;
  74
  75         memset(buf, 0, sizeof(buf));
  76
  77         if (reqs) {
  78                 for (i = 0; i < max; i++) {
  79                         fprintf(F, "%sreq #%d =", dir, i);
  80
  81                         if (reqs[i]->type == arch_register_req_type_none) {
  82                                 fprintf(F, " n/a");
  83                         }
  84
  85                         if (reqs[i]->type & arch_register_req_type_normal) {
  86                                 fprintf(F, " %s", reqs[i]->cls->name);
  87                         }
  88
  89                         if (reqs[i]->type & arch_register_req_type_limited) {
  90                                 fprintf(F, " %s",
  91                                         arch_register_req_format(buf, sizeof(buf), reqs[i], n));
  92                         }
  93
  94                         if (reqs[i]->type & arch_register_req_type_should_be_same) {
  95                                 const unsigned other = reqs[i]->other_same;
  96                                 int i;
  97
  98                                 ir_fprintf(F, " same as");
  99                                 for (i = 0; 1U << i <= other; ++i) {
 100                                         if (other & (1U << i)) {
 101                                                 ir_fprintf(F, " %+F", i);
 102                                         }
 103                                 }
 104                         }
 105
 106                         if (reqs[i]->type & arch_register_req_type_must_be_different) {
 107                                 const unsigned other = reqs[i]->other_different;
 108                                 int i;
 109
 110                                 ir_fprintf(F, " different from");
 111                                 for (i = 0; 1U << i <= other; ++i) {
 112                                         if (other & (1U << i)) {
 113                                                 ir_fprintf(F, " %+F", i);
 114                                         }
 115                                 }
 116                         }
 117
 118                         fprintf(F, "\n");
 119                 }
 120
 121                 fprintf(F, "\n");
 122         } else {
 123                 fprintf(F, "%sreq = N/A\n", dir);
 124         }
 125 }
 126
 127
 128 /**
 129  * Dumper interface for dumping mips nodes in vcg.
 130  * @param n        the node to dump
 131  * @param F        the output file
 132  * @param reason   indicates which kind of information should be dumped
 133  * @return 0 on success or != 0 on failure
 134  */
 135 static int mips_dump_node(ir_node *n, FILE *F, dump_reason_t reason) {
 136         int          bad  = 0;
 137         int          i, n_res, flags;
 138         const arch_register_req_t **reqs;
 139
 140         switch (reason) {
 141                 case dump_node_opcode_txt:
 142                         fprintf(F, "%s", get_irn_opname(n));
 143                         break;
 144
 145                 case dump_node_mode_txt:
 146                         break;
 147
 148                 case dump_node_nodeattr_txt:
 149
 150                         if(is_mips_Immediate(n)) {
 151                                 const mips_immediate_attr_t *attr
 152                                         = get_mips_immediate_attr_const(n);
 153                                 switch(attr->imm_type) {
 154                                 case MIPS_IMM_CONST:
 155                                         fprintf(F, " %ld ", attr->val);
 156                                         break;
 157                                 case MIPS_IMM_SYMCONST_LO:
 158                                         fprintf(F, " lo(%s", get_entity_ld_name(attr->entity));
 159                                         if(attr->val != 0) {
 160                                                 fprintf(F, "%+ld", attr->val);
 161                                         }
 162                                         fprintf(F, ") ");
 163                                         break;
 164                                 case MIPS_IMM_SYMCONST_HI:
 165                                         fprintf(F, " hi(%s", get_entity_ld_name(attr->entity));
 166                                         if(attr->val != 0) {
 167                                                 fprintf(F, "%+ld", attr->val);
 168                                         }
 169                                         fprintf(F, ") ");
 170                                         break;
 171                                 default:
 172                                         fprintf(F, " INVALID ");
 173                                         break;
 174                                 }
 175                         }
 176                         break;
 177
 178                 case dump_node_info_txt:
 179                         fprintf(F, "=== mips attr begin ===\n");
 180
 181                         /* dump IN requirements */
 182                         if (get_irn_arity(n) > 0) {
 183                                 reqs = get_mips_in_req_all(n);
 184                                 dump_reg_req(F, n, reqs, 0);
 185                         }
 186
 187                         n_res = arch_irn_get_n_outs(n);
 188                         if (n_res > 0) {
 189                                 /* dump OUT requirements */
 190                                 reqs = get_mips_out_req_all(n);
 191                                 dump_reg_req(F, n, reqs, 1);
 192
 193                                 /* dump assigned registers */
 194                                 for (i = 0; i < n_res; i++) {
 195                                         const arch_register_t *reg = arch_irn_get_register(n, i);
 196
 197                                         fprintf(F, "reg #%d = %s\n", i, reg ? arch_register_get_name(reg) : "n/a");
 198                                 }
 199                                 fprintf(F, "\n");
 200                         }
 201
 202                         /* dump n_res */
 203                         fprintf(F, "n_res = %d\n", n_res);
 204
 205                         /* dump flags */
 206                         fprintf(F, "flags =");
 207                         flags = arch_irn_get_flags(n);
 208                         if (flags == arch_irn_flags_none) {
 209                                 fprintf(F, " none");
 210                         }
 211                         else {
 212                                 if (flags & arch_irn_flags_dont_spill) {
 213                                         fprintf(F, " unspillable");
 214                                 }
 215                                 if (flags & arch_irn_flags_rematerializable) {
 216                                         fprintf(F, " remat");
 217                                 }
 218                                 if (flags & arch_irn_flags_modify_flags) {
 219                                         fprintf(F, " modify_flags");
 220                                 }
 221                         }
 222                         fprintf(F, " (%d)\n", flags);
 223
 224                         fprintf(F, "=== mips attr end ===\n");
 225                         /* end of: case dump_node_info_txt */
 226                         break;
 227         }
 228
 229
 230         return bad;
 231 }
 232
 233
 234
 235 /***************************************************************************************************
 236  *        _   _                   _       __        _                    _   _               _
 237  *       | | | |                 | |     / /       | |                  | | | |             | |
 238  *   __ _| |_| |_ _ __   ___  ___| |_   / /_ _  ___| |_   _ __ ___   ___| |_| |__   ___   __| |___
 239  *  / _` | __| __| '__| / __|/ _ \ __| / / _` |/ _ \ __| | '_ ` _ \ / _ \ __| '_ \ / _ \ / _` / __|
 240  * | (_| | |_| |_| |    \__ \  __/ |_ / / (_| |  __/ |_  | | | | | |  __/ |_| | | | (_) | (_| \__ \
 241  *  \__,_|\__|\__|_|    |___/\___|\__/_/ \__, |\___|\__| |_| |_| |_|\___|\__|_| |_|\___/ \__,_|___/
 242  *                                        __/ |
 243  *                                       |___/
 244  ***************************************************************************************************/
 245
 246 mips_attr_t *get_mips_attr(ir_node *node)
 247 {
 248         assert(is_mips_irn(node) && "need mips node to get attributes");
 249         return (mips_attr_t *) get_irn_generic_attr(node);
 250 }
 251
 252 const mips_attr_t *get_mips_attr_const(const ir_node *node)
 253 {
 254         assert(is_mips_irn(node) && "need mips node to get attributes");
 255         return get_irn_generic_attr_const(node);
 256 }
 257
 258 const mips_immediate_attr_t *get_mips_immediate_attr_const(const ir_node *node)
 259 {
 260         assert(is_mips_irn(node) && "need mips node to get attributes");
 261         return get_irn_generic_attr_const(node);
 262 }
 263
 264 const mips_load_store_attr_t *get_mips_load_store_attr_const(
 265                 const ir_node *node)
 266 {
 267         assert(is_mips_irn(node) && "need mips node to get attributes");
 268         return get_irn_generic_attr_const(node);
 269 }
 270
 271 /**
 272  * Returns the argument register requirements of a mips node.
 273  */
 274 const arch_register_req_t **get_mips_in_req_all(const ir_node *node)
 275 {
 276         const mips_attr_t *attr = get_mips_attr_const(node);
 277         return attr->in_req;
 278 }
 279
 280 /**
 281  * Returns the result register requirements of an mips node.
 282  */
 283 const arch_register_req_t **get_mips_out_req_all(const ir_node *node)
 284 {
 285         const mips_attr_t *attr = get_mips_attr_const(node);
 286         return attr->out_req;
 287 }
 288
 289 /**
 290  * Returns the argument register requirement at position pos of an mips node.
 291  */
 292 const arch_register_req_t *get_mips_in_req(const ir_node *node, int pos)
 293 {
 294         const mips_attr_t *attr = get_mips_attr_const(node);
 295         return attr->in_req[pos];
 296 }
 297
 298 /**
 299  * Returns the result register requirement at position pos of an mips node.
 300  */
 301 const arch_register_req_t *get_mips_out_req(const ir_node *node, int pos)
 302 {
 303         const mips_attr_t *attr = get_mips_attr_const(node);
 304         return attr->out_req[pos];
 305 }
 306
 307 /**
 308  * Sets the OUT register requirements at position pos.
 309  */
 310 void set_mips_req_out(ir_node *node, const arch_register_req_t *req, int pos)
 311 {
 312         mips_attr_t *attr   = get_mips_attr(node);
 313         attr->out_req[pos] = req;
 314 }
 315
 316 /**
 317  * Sets the IN register requirements at position pos.
 318  */
 319 void set_mips_req_in(ir_node *node, const arch_register_req_t *req, int pos)
 320 {
 321         mips_attr_t *attr  = get_mips_attr(node);
 322         attr->in_req[pos] = req;
 323 }
 324
 325 /**
 326  * Initializes the nodes attributes.
 327  */
 328 static void init_mips_attributes(ir_node *node, arch_irn_flags_t flags,
 329                                  const arch_register_req_t **in_reqs,
 330                                  const arch_register_req_t **out_reqs,
 331                                  const be_execution_unit_t ***execution_units,
 332                                  int n_res)
 333 {
 334         ir_graph       *irg  = get_irn_irg(node);
 335         struct obstack *obst = get_irg_obstack(irg);
 336         mips_attr_t    *attr = get_mips_attr(node);
 337         backend_info_t *info;
 338         (void) execution_units;
 339
 340         arch_irn_set_flags(node, flags);
 341         attr->out_req = out_reqs;
 342         attr->in_req  = in_reqs;
 343
 344         info            = be_get_info(node);
 345         info->out_infos = NEW_ARR_D(reg_out_info_t, obst, n_res);
 346         memset(info->out_infos, 0, n_res * sizeof(info->out_infos[0]));
 347 }
 348
 349 static void init_mips_immediate_attributes(ir_node *node,
 350                                            mips_immediate_type_t type,
 351                                            ir_entity *entity, long val)
 352 {
 353         mips_immediate_attr_t *attr = get_irn_generic_attr(node);
 354
 355         attr->imm_type = type;
 356         attr->entity   = entity;
 357         attr->val      = val;
 358 }
 359
 360 static void init_mips_load_store_attributes(ir_node *node, ir_entity *entity,
 361                                             long offset)
 362 {
 363         mips_load_store_attr_t *attr = get_irn_generic_attr(node);
 364         attr->stack_entity = entity;
 365         attr->offset       = offset;
 366 }
 367
 368 static int mips_compare_nodes_attr(ir_node *node_a, ir_node *node_b)
 369 {
 370         const mips_attr_t *a = get_mips_attr_const(node_a);
 371         const mips_attr_t *b = get_mips_attr_const(node_b);
 372
 373         if(a->switch_default_pn != b->switch_default_pn)
 374                 return 1;
 375
 376         return 0;
 377 }
 378
 379 static int mips_compare_immediate_attr(ir_node *node_a, ir_node *node_b)
 380 {
 381         const mips_immediate_attr_t *a = get_mips_immediate_attr_const(node_a);
 382         const mips_immediate_attr_t *b = get_mips_immediate_attr_const(node_b);
 383
 384         if(a->val != b->val)
 385                 return 1;
 386
 387         return 0;
 388 }
 389
 390 static int mips_compare_load_store_attr(ir_node *node_a, ir_node *node_b)
 391 {
 392         const mips_load_store_attr_t *a = get_mips_load_store_attr_const(node_a);
 393         const mips_load_store_attr_t *b = get_mips_load_store_attr_const(node_b);
 394
 395         if(mips_compare_nodes_attr(node_a, node_b))
 396                 return 1;
 397         if(a->stack_entity != b->stack_entity)
 398                 return 1;
 399         if(a->offset != b->offset)
 400                 return 1;
 401
 402         return 0;
 403 }
 404
 405 static void mips_copy_attr(const ir_node *old_node , ir_node *new_node)
 406 {
 407         ir_graph          *irg      = get_irn_irg(new_node);
 408         struct obstack    *obst     = get_irg_obstack(irg);
 409         const mips_attr_t *attr_old = get_mips_attr_const(old_node);
 410         mips_attr_t       *attr_new = get_mips_attr(new_node);
 411         backend_info_t    *old_info = be_get_info(old_node);
 412         backend_info_t    *new_info = be_get_info(new_node);
 413
 414         /* copy the attributes */
 415         memcpy(attr_new, attr_old, get_op_attr_size(get_irn_op(old_node)));
 416
 417         /* copy out flags */
 418         new_info->out_infos =
 419                 DUP_ARR_D(reg_out_info_t, obst, old_info->out_infos);
 420 }
 421
 422 /***************************************************************************************
 423  *                  _                            _                   _
 424  *                 | |                          | |                 | |
 425  *  _ __   ___   __| | ___    ___ ___  _ __  ___| |_ _ __ _   _  ___| |_ ___  _ __ ___
 426  * | '_ \ / _ \ / _` |/ _ \  / __/ _ \| '_ \/ __| __| '__| | | |/ __| __/ _ \| '__/ __|
 427  * | | | | (_) | (_| |  __/ | (_| (_) | | | \__ \ |_| |  | |_| | (__| || (_) | |  \__ \
 428  * |_| |_|\___/ \__,_|\___|  \___\___/|_| |_|___/\__|_|   \__,_|\___|\__\___/|_|  |___/
 429  *
 430  ***************************************************************************************/
 431
 432 /* Include the generated constructor functions */
 433 #include "gen_mips_new_nodes.c.inl"