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