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         char *dir = inout ? "out" : "in";
  70         int   max = inout ? (int) arch_irn_get_n_outs(n) : get_irn_arity(n);
  71         char  buf[1024];
  72         int   i;
  73
  74         memset(buf, 0, sizeof(buf));
  75
  76         if (reqs) {
  77                 for (i = 0; i < max; i++) {
  78                         fprintf(F, "%sreq #%d =", dir, i);
  79
  80                         if (reqs[i]->type == arch_register_req_type_none) {
  81                                 fprintf(F, " n/a");
  82                         }
  83
  84                         if (reqs[i]->type & arch_register_req_type_normal) {
  85                                 fprintf(F, " %s", reqs[i]->cls->name);
  86                         }
  87
  88                         if (reqs[i]->type & arch_register_req_type_limited) {
  89                                 fprintf(F, " %s",
  90                                         arch_register_req_format(buf, sizeof(buf), reqs[i], n));
  91                         }
  92
  93                         if (reqs[i]->type & arch_register_req_type_should_be_same) {
  94                                 const unsigned other = reqs[i]->other_same;
  95                                 int i;
  96
  97                                 ir_fprintf(F, " same as");
  98                                 for (i = 0; 1U << i <= other; ++i) {
  99                                         if (other & (1U << i)) {
 100                                                 ir_fprintf(F, " %+F", i);
 101                                         }
 102                                 }
 103                         }
 104
 105                         if (reqs[i]->type & arch_register_req_type_must_be_different) {
 106                                 const unsigned other = reqs[i]->other_different;
 107                                 int i;
 108
 109                                 ir_fprintf(F, " different from");
 110                                 for (i = 0; 1U << i <= other; ++i) {
 111                                         if (other & (1U << i)) {
 112                                                 ir_fprintf(F, " %+F", i);
 113                                         }
 114                                 }
 115                         }
 116
 117                         fprintf(F, "\n");
 118                 }
 119
 120                 fprintf(F, "\n");
 121         } else {
 122                 fprintf(F, "%sreq = N/A\n", dir);
 123         }
 124 }
 125
 126
 127 /**
 128  * Dumper interface for dumping mips nodes in vcg.
 129  * @param n        the node to dump
 130  * @param F        the output file
 131  * @param reason   indicates which kind of information should be dumped
 132  * @return 0 on success or != 0 on failure
 133  */
 134 static int mips_dump_node(ir_node *n, FILE *F, dump_reason_t reason) {
 135         int          bad  = 0;
 136         int          i, n_res, flags;
 137         const arch_register_req_t **reqs;
 138
 139         switch (reason) {
 140                 case dump_node_opcode_txt:
 141                         fprintf(F, "%s", get_irn_opname(n));
 142                         break;
 143
 144                 case dump_node_mode_txt:
 145                         break;
 146
 147                 case dump_node_nodeattr_txt:
 148
 149                         if(is_mips_Immediate(n)) {
 150                                 const mips_immediate_attr_t *attr
 151                                         = get_mips_immediate_attr_const(n);
 152                                 switch(attr->imm_type) {
 153                                 case MIPS_IMM_CONST:
 154                                         fprintf(F, " %ld ", attr->val);
 155                                         break;
 156                                 case MIPS_IMM_SYMCONST_LO:
 157                                         fprintf(F, " lo(%s", get_entity_ld_name(attr->entity));
 158                                         if(attr->val != 0) {
 159                                                 fprintf(F, "%+ld", attr->val);
 160                                         }
 161                                         fprintf(F, ") ");
 162                                         break;
 163                                 case MIPS_IMM_SYMCONST_HI:
 164                                         fprintf(F, " hi(%s", get_entity_ld_name(attr->entity));
 165                                         if(attr->val != 0) {
 166                                                 fprintf(F, "%+ld", attr->val);
 167                                         }
 168                                         fprintf(F, ") ");
 169                                         break;
 170                                 default:
 171                                         fprintf(F, " INVALID ");
 172                                         break;
 173                                 }
 174                         }
 175                         break;
 176
 177                 case dump_node_info_txt:
 178                         fprintf(F, "=== mips attr begin ===\n");
 179
 180                         /* dump IN requirements */
 181                         if (get_irn_arity(n) > 0) {
 182                                 reqs = get_mips_in_req_all(n);
 183                                 dump_reg_req(F, n, reqs, 0);
 184                         }
 185
 186                         n_res = arch_irn_get_n_outs(n);
 187                         if (n_res > 0) {
 188                                 /* dump OUT requirements */
 189                                 reqs = get_mips_out_req_all(n);
 190                                 dump_reg_req(F, n, reqs, 1);
 191
 192                                 /* dump assigned registers */
 193                                 for (i = 0; i < n_res; i++) {
 194                                         const arch_register_t *reg = arch_irn_get_register(n, i);
 195
 196                                         fprintf(F, "reg #%d = %s\n", i, reg ? arch_register_get_name(reg) : "n/a");
 197                                 }
 198                                 fprintf(F, "\n");
 199                         }
 200
 201                         /* dump n_res */
 202                         fprintf(F, "n_res = %d\n", n_res);
 203
 204                         /* dump flags */
 205                         fprintf(F, "flags =");
 206                         flags = arch_irn_get_flags(n);
 207                         if (flags == arch_irn_flags_none) {
 208                                 fprintf(F, " none");
 209                         }
 210                         else {
 211                                 if (flags & arch_irn_flags_dont_spill) {
 212                                         fprintf(F, " unspillable");
 213                                 }
 214                                 if (flags & arch_irn_flags_rematerializable) {
 215                                         fprintf(F, " remat");
 216                                 }
 217                                 if (flags & arch_irn_flags_modify_flags) {
 218                                         fprintf(F, " modify_flags");
 219                                 }
 220                         }
 221                         fprintf(F, " (%d)\n", flags);
 222
 223                         fprintf(F, "=== mips attr end ===\n");
 224                         /* end of: case dump_node_info_txt */
 225                         break;
 226         }
 227
 228
 229         return bad;
 230 }
 231
 232
 233
 234 /***************************************************************************************************
 235  *        _   _                   _       __        _                    _   _               _
 236  *       | | | |                 | |     / /       | |                  | | | |             | |
 237  *   __ _| |_| |_ _ __   ___  ___| |_   / /_ _  ___| |_   _ __ ___   ___| |_| |__   ___   __| |___
 238  *  / _` | __| __| '__| / __|/ _ \ __| / / _` |/ _ \ __| | '_ ` _ \ / _ \ __| '_ \ / _ \ / _` / __|
 239  * | (_| | |_| |_| |    \__ \  __/ |_ / / (_| |  __/ |_  | | | | | |  __/ |_| | | | (_) | (_| \__ \
 240  *  \__,_|\__|\__|_|    |___/\___|\__/_/ \__, |\___|\__| |_| |_| |_|\___|\__|_| |_|\___/ \__,_|___/
 241  *                                        __/ |
 242  *                                       |___/
 243  ***************************************************************************************************/
 244
 245 mips_attr_t *get_mips_attr(ir_node *node)
 246 {
 247         assert(is_mips_irn(node) && "need mips node to get attributes");
 248         return (mips_attr_t *) get_irn_generic_attr(node);
 249 }
 250
 251 const mips_attr_t *get_mips_attr_const(const ir_node *node)
 252 {
 253         assert(is_mips_irn(node) && "need mips node to get attributes");
 254         return get_irn_generic_attr_const(node);
 255 }
 256
 257 const mips_immediate_attr_t *get_mips_immediate_attr_const(const ir_node *node)
 258 {
 259         assert(is_mips_irn(node) && "need mips node to get attributes");
 260         return get_irn_generic_attr_const(node);
 261 }
 262
 263 const mips_load_store_attr_t *get_mips_load_store_attr_const(
 264                 const ir_node *node)
 265 {
 266         assert(is_mips_irn(node) && "need mips node to get attributes");
 267         return get_irn_generic_attr_const(node);
 268 }
 269
 270 /**
 271  * Returns the argument register requirements of a mips node.
 272  */
 273 const arch_register_req_t **get_mips_in_req_all(const ir_node *node)
 274 {
 275         const mips_attr_t *attr = get_mips_attr_const(node);
 276         return attr->in_req;
 277 }
 278
 279 /**
 280  * Returns the result register requirements of an mips node.
 281  */
 282 const arch_register_req_t **get_mips_out_req_all(const ir_node *node)
 283 {
 284         const mips_attr_t *attr = get_mips_attr_const(node);
 285         return attr->out_req;
 286 }
 287
 288 /**
 289  * Returns the argument register requirement at position pos of an mips node.
 290  */
 291 const arch_register_req_t *get_mips_in_req(const ir_node *node, int pos)
 292 {
 293         const mips_attr_t *attr = get_mips_attr_const(node);
 294         return attr->in_req[pos];
 295 }
 296
 297 /**
 298  * Returns the result register requirement at position pos of an mips node.
 299  */
 300 const arch_register_req_t *get_mips_out_req(const ir_node *node, int pos)
 301 {
 302         const mips_attr_t *attr = get_mips_attr_const(node);
 303         return attr->out_req[pos];
 304 }
 305
 306 /**
 307  * Sets the OUT register requirements at position pos.
 308  */
 309 void set_mips_req_out(ir_node *node, const arch_register_req_t *req, int pos)
 310 {
 311         mips_attr_t *attr   = get_mips_attr(node);
 312         attr->out_req[pos] = req;
 313 }
 314
 315 /**
 316  * Sets the IN register requirements at position pos.
 317  */
 318 void set_mips_req_in(ir_node *node, const arch_register_req_t *req, int pos)
 319 {
 320         mips_attr_t *attr  = get_mips_attr(node);
 321         attr->in_req[pos] = req;
 322 }
 323
 324 /**
 325  * Initializes the nodes attributes.
 326  */
 327 static void init_mips_attributes(ir_node *node, arch_irn_flags_t flags,
 328                                  const arch_register_req_t **in_reqs,
 329                                  const arch_register_req_t **out_reqs,
 330                                  const be_execution_unit_t ***execution_units,
 331                                  int n_res)
 332 {
 333         ir_graph       *irg  = get_irn_irg(node);
 334         struct obstack *obst = get_irg_obstack(irg);
 335         mips_attr_t    *attr = get_mips_attr(node);
 336         backend_info_t *info;
 337         (void) execution_units;
 338
 339         arch_irn_set_flags(node, flags);
 340         attr->out_req = out_reqs;
 341         attr->in_req  = in_reqs;
 342
 343         info            = be_get_info(node);
 344         info->out_infos = NEW_ARR_D(reg_out_info_t, obst, n_res);
 345         memset(info->out_infos, 0, n_res * sizeof(info->out_infos[0]));
 346 }
 347
 348 static void init_mips_immediate_attributes(ir_node *node,
 349                                            mips_immediate_type_t type,
 350                                            ir_entity *entity, long val)
 351 {
 352         mips_immediate_attr_t *attr = get_irn_generic_attr(node);
 353
 354         attr->imm_type = type;
 355         attr->entity   = entity;
 356         attr->val      = val;
 357 }
 358
 359 static void init_mips_load_store_attributes(ir_node *node, ir_entity *entity,
 360                                             long offset)
 361 {
 362         mips_load_store_attr_t *attr = get_irn_generic_attr(node);
 363         attr->stack_entity = entity;
 364         attr->offset       = offset;
 365 }
 366
 367 static int mips_compare_nodes_attr(ir_node *node_a, ir_node *node_b)
 368 {
 369         const mips_attr_t *a = get_mips_attr_const(node_a);
 370         const mips_attr_t *b = get_mips_attr_const(node_b);
 371
 372         if(a->switch_default_pn != b->switch_default_pn)
 373                 return 1;
 374
 375         return 0;
 376 }
 377
 378 static int mips_compare_immediate_attr(ir_node *node_a, ir_node *node_b)
 379 {
 380         const mips_immediate_attr_t *a = get_mips_immediate_attr_const(node_a);
 381         const mips_immediate_attr_t *b = get_mips_immediate_attr_const(node_b);
 382
 383         if(a->val != b->val)
 384                 return 1;
 385
 386         return 0;
 387 }
 388
 389 static int mips_compare_load_store_attr(ir_node *node_a, ir_node *node_b)
 390 {
 391         const mips_load_store_attr_t *a = get_mips_load_store_attr_const(node_a);
 392         const mips_load_store_attr_t *b = get_mips_load_store_attr_const(node_b);
 393
 394         if(mips_compare_nodes_attr(node_a, node_b))
 395                 return 1;
 396         if(a->stack_entity != b->stack_entity)
 397                 return 1;
 398         if(a->offset != b->offset)
 399                 return 1;
 400
 401         return 0;
 402 }
 403
 404 static void mips_copy_attr(const ir_node *old_node , ir_node *new_node)
 405 {
 406         ir_graph          *irg      = get_irn_irg(new_node);
 407         struct obstack    *obst     = get_irg_obstack(irg);
 408         const mips_attr_t *attr_old = get_mips_attr_const(old_node);
 409         mips_attr_t       *attr_new = get_mips_attr(new_node);
 410         backend_info_t    *old_info = be_get_info(old_node);
 411         backend_info_t    *new_info = be_get_info(new_node);
 412
 413         /* copy the attributes */
 414         memcpy(attr_new, attr_old, get_op_attr_size(get_irn_op(old_node)));
 415
 416         /* copy out flags */
 417         new_info->out_infos =
 418                 DUP_ARR_D(reg_out_info_t, obst, old_info->out_infos);
 419 }
 420
 421 /***************************************************************************************
 422  *                  _                            _                   _
 423  *                 | |                          | |                 | |
 424  *  _ __   ___   __| | ___    ___ ___  _ __  ___| |_ _ __ _   _  ___| |_ ___  _ __ ___
 425  * | '_ \ / _ \ / _` |/ _ \  / __/ _ \| '_ \/ __| __| '__| | | |/ __| __/ _ \| '__/ __|
 426  * | | | | (_) | (_| |  __/ | (_| (_) | | | \__ \ |_| |  | |_| | (__| || (_) | |  \__ \
 427  * |_| |_|\___/ \__,_|\___|  \___\___/|_| |_|___/\__|_|   \__,_|\___|\__\___/|_|  |___/
 428  *
 429  ***************************************************************************************/
 430
 431 /* Include the generated constructor functions */
 432 #include "gen_mips_new_nodes.c.inl"