gcc/fortran/iresolve.c

   1 /* Intrinsic function resolution.
   2    Copyright (C) 2000, 2001, 2002, 2003, 2004 Free Software Foundation,
   3    Inc.
   4    Contributed by Andy Vaught & Katherine Holcomb
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 2, or (at your option) any later
  11 version.
  12
  13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING.  If not, write to the Free
  20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  21 02111-1307, USA.  */
  22
  23
  24 /* Assign name and types to intrinsic procedures.  For functions, the
  25    first argument to a resolution function is an expression pointer to
  26    the original function node and the rest are pointers to the
  27    arguments of the function call.  For subroutines, a pointer to the
  28    code node is passed.  The result type and library subroutine name
  29    are generally set according to the function arguments.  */
  30
  31 #include "config.h"
  32 #include <string.h>
  33 #include <stdarg.h>
  34
  35 #include "gfortran.h"
  36 #include "intrinsic.h"
  37
  38
  39 /* String pool subroutines.  This are used to provide static locations
  40    for the string constants that represent library function names.  */
  41
  42 typedef struct string_node
  43 {
  44   struct string_node *next;
  45   char string[1];
  46 }
  47 string_node;
  48
  49 #define HASH_SIZE 13
  50
  51 static string_node *string_head[HASH_SIZE];
  52
  53
  54 /* Return a hash code based on the name.  */
  55
  56 static int
  57 hash (const char *name)
  58 {
  59   int h;
  60
  61   h = 1;
  62   while (*name)
  63     h = 5311966 * h + *name++;
  64
  65   if (h < 0)
  66     h = -h;
  67   return h % HASH_SIZE;
  68 }
  69
  70
  71 /* Given printf-like arguments, return a static address of the
  72    resulting string.  If the name is not in the table, it is added.  */
  73
  74 char *
  75 gfc_get_string (const char *format, ...)
  76 {
  77   char temp_name[50];
  78   string_node *p;
  79   va_list ap;
  80   int h;
  81
  82   va_start (ap, format);
  83   vsprintf (temp_name, format, ap);
  84   va_end (ap);
  85
  86   h = hash (temp_name);
  87
  88   /* Search */
  89   for (p = string_head[h]; p; p = p->next)
  90     if (strcmp (p->string, temp_name) == 0)
  91       return p->string;
  92
  93   /* Add */
  94   p = gfc_getmem (sizeof (string_node) + strlen (temp_name));
  95
  96   strcpy (p->string, temp_name);
  97
  98   p->next = string_head[h];
  99   string_head[h] = p;
 100
 101   return p->string;
 102 }
 103
 104
 105
 106 static void
 107 free_strings (void)
 108 {
 109   string_node *p, *q;
 110   int h;
 111
 112   for (h = 0; h < HASH_SIZE; h++)
 113     {
 114       for (p = string_head[h]; p; p = q)
 115         {
 116           q = p->next;
 117           gfc_free (p);
 118         }
 119     }
 120 }
 121
 122
 123 /********************** Resolution functions **********************/
 124
 125
 126 void
 127 gfc_resolve_abs (gfc_expr * f, gfc_expr * a)
 128 {
 129
 130   f->ts = a->ts;
 131   if (f->ts.type == BT_COMPLEX)
 132     f->ts.type = BT_REAL;
 133
 134   f->value.function.name =
 135     gfc_get_string ("__abs_%c%d", gfc_type_letter (a->ts.type), a->ts.kind);
 136 }
 137
 138
 139 void
 140 gfc_resolve_acos (gfc_expr * f, gfc_expr * x)
 141 {
 142
 143   f->ts = x->ts;
 144   f->value.function.name =
 145     gfc_get_string ("__acos_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
 146 }
 147
 148
 149 void
 150 gfc_resolve_aimag (gfc_expr * f, gfc_expr * x)
 151 {
 152
 153   f->ts.type = BT_REAL;
 154   f->ts.kind = x->ts.kind;
 155   f->value.function.name =
 156     gfc_get_string ("__aimag_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
 157 }
 158
 159
 160 void
 161 gfc_resolve_aint (gfc_expr * f, gfc_expr * a, gfc_expr * kind)
 162 {
 163
 164   f->ts.type = a->ts.type;
 165   f->ts.kind = (kind == NULL) ? a->ts.kind : mpz_get_si (kind->value.integer);
 166
 167   /* The resolved name is only used for specific intrinsics where
 168      the return kind is the same as the arg kind.  */
 169   f->value.function.name =
 170     gfc_get_string ("__aint_%c%d", gfc_type_letter (a->ts.type), a->ts.kind);
 171 }
 172
 173
 174 void
 175 gfc_resolve_dint (gfc_expr * f, gfc_expr * a)
 176 {
 177   gfc_resolve_aint (f, a, NULL);
 178 }
 179
 180
 181 void
 182 gfc_resolve_all (gfc_expr * f, gfc_expr * mask, gfc_expr * dim)
 183 {
 184
 185   f->ts = mask->ts;
 186
 187   if (dim != NULL)
 188     {
 189       gfc_resolve_index (dim, 1);
 190       f->rank = mask->rank - 1;
 191       f->shape = gfc_copy_shape_excluding (mask->shape, mask->rank, dim);
 192     }
 193
 194   f->value.function.name =
 195     gfc_get_string ("__all_%c%d", gfc_type_letter (mask->ts.type),
 196                     mask->ts.kind);
 197 }
 198
 199
 200 void
 201 gfc_resolve_anint (gfc_expr * f, gfc_expr * a, gfc_expr * kind)
 202 {
 203
 204   f->ts.type = a->ts.type;
 205   f->ts.kind = (kind == NULL) ? a->ts.kind : mpz_get_si (kind->value.integer);
 206
 207   /* The resolved name is only used for specific intrinsics where
 208      the return kind is the same as the arg kind.  */
 209   f->value.function.name =
 210     gfc_get_string ("__anint_%c%d", gfc_type_letter (a->ts.type), a->ts.kind);
 211 }
 212
 213
 214 void
 215 gfc_resolve_dnint (gfc_expr * f, gfc_expr * a)
 216 {
 217   gfc_resolve_anint (f, a, NULL);
 218 }
 219
 220
 221 void
 222 gfc_resolve_any (gfc_expr * f, gfc_expr * mask, gfc_expr * dim)
 223 {
 224
 225   f->ts = mask->ts;
 226
 227   if (dim != NULL)
 228     {
 229       gfc_resolve_index (dim, 1);
 230       f->rank = mask->rank - 1;
 231       f->shape = gfc_copy_shape_excluding (mask->shape, mask->rank, dim);
 232     }
 233
 234   f->value.function.name =
 235     gfc_get_string ("__any_%c%d", gfc_type_letter (mask->ts.type),
 236                     mask->ts.kind);
 237 }
 238
 239
 240 void
 241 gfc_resolve_asin (gfc_expr * f, gfc_expr * x)
 242 {
 243
 244   f->ts = x->ts;
 245   f->value.function.name =
 246     gfc_get_string ("__asin_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
 247 }
 248
 249
 250 void
 251 gfc_resolve_atan (gfc_expr * f, gfc_expr * x)
 252 {
 253
 254   f->ts = x->ts;
 255   f->value.function.name =
 256     gfc_get_string ("__atan_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
 257 }
 258
 259
 260 void
 261 gfc_resolve_atan2 (gfc_expr * f, gfc_expr * x,
 262                    gfc_expr * y ATTRIBUTE_UNUSED)
 263 {
 264
 265   f->ts = x->ts;
 266   f->value.function.name =
 267     gfc_get_string ("__atan2_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
 268 }
 269
 270
 271 /* Resolve the BESYN and BESJN intrinsics.  */
 272
 273 void
 274 gfc_resolve_besn (gfc_expr * f, gfc_expr * n, gfc_expr * x)
 275 {
 276   gfc_typespec ts;
 277
 278   f->ts = x->ts;
 279   if (n->ts.kind != gfc_c_int_kind)
 280     {
 281       ts.type = BT_INTEGER;
 282       ts.kind = gfc_c_int_kind;
 283       gfc_convert_type (n, &ts, 2);
 284     }
 285   f->value.function.name = gfc_get_string ("<intrinsic>");
 286 }
 287
 288
 289 void
 290 gfc_resolve_btest (gfc_expr * f, gfc_expr * i, gfc_expr * pos)
 291 {
 292
 293   f->ts.type = BT_LOGICAL;
 294   f->ts.kind = gfc_default_logical_kind;
 295
 296   f->value.function.name = gfc_get_string ("__btest_%d_%d", i->ts.kind,
 297                                            pos->ts.kind);
 298 }
 299
 300
 301 void
 302 gfc_resolve_ceiling (gfc_expr * f, gfc_expr * a, gfc_expr * kind)
 303 {
 304
 305   f->ts.type = BT_INTEGER;
 306   f->ts.kind = (kind == NULL) ? gfc_default_integer_kind
 307     : mpz_get_si (kind->value.integer);
 308
 309   f->value.function.name =
 310     gfc_get_string ("__ceiling_%d_%c%d", f->ts.kind,
 311                     gfc_type_letter (a->ts.type), a->ts.kind);
 312 }
 313
 314
 315 void
 316 gfc_resolve_char (gfc_expr * f, gfc_expr * a, gfc_expr * kind)
 317 {
 318
 319   f->ts.type = BT_CHARACTER;
 320   f->ts.kind = (kind == NULL) ? gfc_default_character_kind
 321     : mpz_get_si (kind->value.integer);
 322
 323   f->value.function.name =
 324     gfc_get_string ("__char_%d_%c%d", f->ts.kind,
 325                     gfc_type_letter (a->ts.type), a->ts.kind);
 326 }
 327
 328
 329 void
 330 gfc_resolve_cmplx (gfc_expr * f, gfc_expr * x, gfc_expr * y, gfc_expr * kind)
 331 {
 332
 333   f->ts.type = BT_COMPLEX;
 334   f->ts.kind = (kind == NULL) ? gfc_default_real_kind
 335     : mpz_get_si (kind->value.integer);
 336
 337   if (y == NULL)
 338     f->value.function.name =
 339       gfc_get_string ("__cmplx0_%d_%c%d", f->ts.kind,
 340                       gfc_type_letter (x->ts.type), x->ts.kind);
 341   else
 342     f->value.function.name =
 343       gfc_get_string ("__cmplx1_%d_%c%d_%c%d", f->ts.kind,
 344                       gfc_type_letter (x->ts.type), x->ts.kind,
 345                       gfc_type_letter (y->ts.type), y->ts.kind);
 346 }
 347
 348 void
 349 gfc_resolve_dcmplx (gfc_expr * f, gfc_expr * x, gfc_expr * y)
 350 {
 351   gfc_resolve_cmplx (f, x, y, gfc_int_expr (gfc_default_double_kind));
 352 }
 353
 354 void
 355 gfc_resolve_conjg (gfc_expr * f, gfc_expr * x)
 356 {
 357
 358   f->ts = x->ts;
 359   f->value.function.name = gfc_get_string ("__conjg_%d", x->ts.kind);
 360 }
 361
 362
 363 void
 364 gfc_resolve_cos (gfc_expr * f, gfc_expr * x)
 365 {
 366
 367   f->ts = x->ts;
 368   f->value.function.name =
 369     gfc_get_string ("__cos_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
 370 }
 371
 372
 373 void
 374 gfc_resolve_cosh (gfc_expr * f, gfc_expr * x)
 375 {
 376
 377   f->ts = x->ts;
 378   f->value.function.name =
 379     gfc_get_string ("__cosh_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
 380 }
 381
 382
 383 void
 384 gfc_resolve_count (gfc_expr * f, gfc_expr * mask, gfc_expr * dim)
 385 {
 386
 387   f->ts.type = BT_INTEGER;
 388   f->ts.kind = gfc_default_integer_kind;
 389
 390   if (dim != NULL)
 391     {
 392       f->rank = mask->rank - 1;
 393       gfc_resolve_index (dim, 1);
 394       f->shape = gfc_copy_shape_excluding (mask->shape, mask->rank, dim);
 395     }
 396
 397   f->value.function.name =
 398     gfc_get_string ("__count_%d_%c%d", f->ts.kind,
 399                     gfc_type_letter (mask->ts.type), mask->ts.kind);
 400 }
 401
 402
 403 void
 404 gfc_resolve_cshift (gfc_expr * f, gfc_expr * array,
 405                     gfc_expr * shift,
 406                     gfc_expr * dim)
 407 {
 408   int n;
 409
 410   f->ts = array->ts;
 411   f->rank = array->rank;
 412   f->shape = gfc_copy_shape (array->shape, array->rank);
 413
 414   if (shift->rank > 0)
 415     n = 1;
 416   else
 417     n = 0;
 418
 419   if (dim != NULL)
 420     {
 421       gfc_resolve_index (dim, 1);
 422       /* Convert dim to shift's kind, so we don't need so many variations.  */
 423       if (dim->ts.kind != shift->ts.kind)
 424         gfc_convert_type (dim, &shift->ts, 2);
 425     }
 426   f->value.function.name =
 427     gfc_get_string ("__cshift%d_%d", n, shift->ts.kind);
 428 }
 429
 430
 431 void
 432 gfc_resolve_dble (gfc_expr * f, gfc_expr * a)
 433 {
 434
 435   f->ts.type = BT_REAL;
 436   f->ts.kind = gfc_default_double_kind;
 437   f->value.function.name =
 438     gfc_get_string ("__dble_%c%d", gfc_type_letter (a->ts.type), a->ts.kind);
 439 }
 440
 441
 442 void
 443 gfc_resolve_dim (gfc_expr * f, gfc_expr * x,
 444                  gfc_expr * y ATTRIBUTE_UNUSED)
 445 {
 446
 447   f->ts = x->ts;
 448   f->value.function.name =
 449     gfc_get_string ("__dim_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
 450 }
 451
 452
 453 void
 454 gfc_resolve_dot_product (gfc_expr * f, gfc_expr * a, gfc_expr * b)
 455 {
 456   gfc_expr temp;
 457
 458   if (a->ts.type == BT_LOGICAL && b->ts.type == BT_LOGICAL)
 459     {
 460       f->ts.type = BT_LOGICAL;
 461       f->ts.kind = gfc_default_logical_kind;
 462     }
 463   else
 464     {
 465       temp.expr_type = EXPR_OP;
 466       gfc_clear_ts (&temp.ts);
 467       temp.operator = INTRINSIC_NONE;
 468       temp.op1 = a;
 469       temp.op2 = b;
 470       gfc_type_convert_binary (&temp);
 471       f->ts = temp.ts;
 472     }
 473
 474   f->value.function.name =
 475     gfc_get_string ("__dot_product_%c%d", gfc_type_letter (f->ts.type),
 476                     f->ts.kind);
 477 }
 478
 479
 480 void
 481 gfc_resolve_dprod (gfc_expr * f,
 482                    gfc_expr * a ATTRIBUTE_UNUSED,
 483                    gfc_expr * b ATTRIBUTE_UNUSED)
 484 {
 485   f->ts.kind = gfc_default_double_kind;
 486   f->ts.type = BT_REAL;
 487
 488   f->value.function.name = gfc_get_string ("__dprod_r%d", f->ts.kind);
 489 }
 490
 491
 492 void
 493 gfc_resolve_eoshift (gfc_expr * f, gfc_expr * array,
 494                      gfc_expr * shift,
 495                      gfc_expr * boundary,
 496                      gfc_expr * dim)
 497 {
 498   int n;
 499
 500   f->ts = array->ts;
 501   f->rank = array->rank;
 502   f->shape = gfc_copy_shape (array->shape, array->rank);
 503
 504   n = 0;
 505   if (shift->rank > 0)
 506     n = n | 1;
 507   if (boundary && boundary->rank > 0)
 508     n = n | 2;
 509
 510   /* Convert dim to the same type as shift, so we don't need quite so many
 511      variations.  */
 512   if (dim != NULL && dim->ts.kind != shift->ts.kind)
 513     gfc_convert_type (dim, &shift->ts, 2);
 514
 515   f->value.function.name =
 516     gfc_get_string ("__eoshift%d_%d", n, shift->ts.kind);
 517 }
 518
 519
 520 void
 521 gfc_resolve_exp (gfc_expr * f, gfc_expr * x)
 522 {
 523
 524   f->ts = x->ts;
 525   f->value.function.name =
 526     gfc_get_string ("__exp_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
 527 }
 528
 529
 530 void
 531 gfc_resolve_exponent (gfc_expr * f, gfc_expr * x)
 532 {
 533
 534   f->ts.type = BT_INTEGER;
 535   f->ts.kind = gfc_default_integer_kind;
 536
 537   f->value.function.name = gfc_get_string ("__exponent_%d", x->ts.kind);
 538 }
 539
 540
 541 void
 542 gfc_resolve_floor (gfc_expr * f, gfc_expr * a, gfc_expr * kind)
 543 {
 544
 545   f->ts.type = BT_INTEGER;
 546   f->ts.kind = (kind == NULL) ? gfc_default_integer_kind
 547     : mpz_get_si (kind->value.integer);
 548
 549   f->value.function.name =
 550     gfc_get_string ("__floor%d_%c%d", f->ts.kind,
 551                     gfc_type_letter (a->ts.type), a->ts.kind);
 552 }
 553
 554
 555 void
 556 gfc_resolve_fraction (gfc_expr * f, gfc_expr * x)
 557 {
 558
 559   f->ts = x->ts;
 560   f->value.function.name = gfc_get_string ("__fraction_%d", x->ts.kind);
 561 }
 562
 563
 564 /* Resolve single-argument g77 math intrinsics, eg BESY0, ERF.  */
 565
 566 void
 567 gfc_resolve_g77_math1 (gfc_expr * f, gfc_expr * x)
 568 {
 569   f->ts = x->ts;
 570   f->value.function.name = gfc_get_string ("<intrinsic>");
 571 }
 572
 573
 574 void
 575 gfc_resolve_getgid (gfc_expr * f)
 576 {
 577   f->ts.type = BT_INTEGER;
 578   f->ts.kind = 4;
 579   f->value.function.name = gfc_get_string (PREFIX("getgid"));
 580 }
 581
 582
 583 void
 584 gfc_resolve_getpid (gfc_expr * f)
 585 {
 586   f->ts.type = BT_INTEGER;
 587   f->ts.kind = 4;
 588   f->value.function.name = gfc_get_string (PREFIX("getpid"));
 589 }
 590
 591
 592 void
 593 gfc_resolve_getuid (gfc_expr * f)
 594 {
 595   f->ts.type = BT_INTEGER;
 596   f->ts.kind = 4;
 597   f->value.function.name = gfc_get_string (PREFIX("getuid"));
 598 }
 599
 600 void
 601 gfc_resolve_iand (gfc_expr * f, gfc_expr * i, gfc_expr * j ATTRIBUTE_UNUSED)
 602 {
 603
 604   f->ts = i->ts;
 605   f->value.function.name = gfc_get_string ("__iand_%d", i->ts.kind);
 606 }
 607
 608
 609 void
 610 gfc_resolve_ibclr (gfc_expr * f, gfc_expr * i, gfc_expr * pos ATTRIBUTE_UNUSED)
 611 {
 612
 613   f->ts = i->ts;
 614   f->value.function.name = gfc_get_string ("__ibclr_%d", i->ts.kind);
 615 }
 616
 617
 618 void
 619 gfc_resolve_ibits (gfc_expr * f, gfc_expr * i,
 620                    gfc_expr * pos ATTRIBUTE_UNUSED,
 621                    gfc_expr * len ATTRIBUTE_UNUSED)
 622 {
 623
 624   f->ts = i->ts;
 625   f->value.function.name = gfc_get_string ("__ibits_%d", i->ts.kind);
 626 }
 627
 628
 629 void
 630 gfc_resolve_ibset (gfc_expr * f, gfc_expr * i,
 631                    gfc_expr * pos ATTRIBUTE_UNUSED)
 632 {
 633
 634   f->ts = i->ts;
 635   f->value.function.name = gfc_get_string ("__ibset_%d", i->ts.kind);
 636 }
 637
 638
 639 void
 640 gfc_resolve_ichar (gfc_expr * f, gfc_expr * c)
 641 {
 642
 643   f->ts.type = BT_INTEGER;
 644   f->ts.kind = gfc_default_integer_kind;
 645
 646   f->value.function.name = gfc_get_string ("__ichar_%d", c->ts.kind);
 647 }
 648
 649
 650 void
 651 gfc_resolve_idnint (gfc_expr * f, gfc_expr * a)
 652 {
 653   gfc_resolve_nint (f, a, NULL);
 654 }
 655
 656
 657 void
 658 gfc_resolve_ieor (gfc_expr * f, gfc_expr * i,
 659                   gfc_expr * j ATTRIBUTE_UNUSED)
 660 {
 661
 662   f->ts = i->ts;
 663   f->value.function.name = gfc_get_string ("__ieor_%d", i->ts.kind);
 664 }
 665
 666
 667 void
 668 gfc_resolve_ior (gfc_expr * f, gfc_expr * i,
 669                  gfc_expr * j ATTRIBUTE_UNUSED)
 670 {
 671
 672   f->ts = i->ts;
 673   f->value.function.name = gfc_get_string ("__ior_%d", i->ts.kind);
 674 }
 675
 676
 677 void
 678 gfc_resolve_int (gfc_expr * f, gfc_expr * a, gfc_expr * kind)
 679 {
 680
 681   f->ts.type = BT_INTEGER;
 682   f->ts.kind = (kind == NULL) ? gfc_default_integer_kind
 683     : mpz_get_si (kind->value.integer);
 684
 685   f->value.function.name =
 686     gfc_get_string ("__int_%d_%c%d", f->ts.kind, gfc_type_letter (a->ts.type),
 687                     a->ts.kind);
 688 }
 689
 690
 691 void
 692 gfc_resolve_ishft (gfc_expr * f, gfc_expr * i, gfc_expr * shift)
 693 {
 694
 695   f->ts = i->ts;
 696   f->value.function.name =
 697     gfc_get_string ("__ishft_%d_%d", i->ts.kind, shift->ts.kind);
 698 }
 699
 700
 701 void
 702 gfc_resolve_ishftc (gfc_expr * f, gfc_expr * i, gfc_expr * shift,
 703                     gfc_expr * size)
 704 {
 705   int s_kind;
 706
 707   s_kind = (size == NULL) ? gfc_default_integer_kind : shift->ts.kind;
 708
 709   f->ts = i->ts;
 710   f->value.function.name =
 711     gfc_get_string ("__ishftc_%d_%d_%d", i->ts.kind, shift->ts.kind, s_kind);
 712 }
 713
 714
 715 void
 716 gfc_resolve_lbound (gfc_expr * f, gfc_expr * array,
 717                     gfc_expr * dim)
 718 {
 719   static char lbound[] = "__lbound";
 720
 721   f->ts.type = BT_INTEGER;
 722   f->ts.kind = gfc_default_integer_kind;
 723
 724   if (dim == NULL)
 725     {
 726       f->rank = 1;
 727       f->shape = gfc_get_shape (1);
 728       mpz_init_set_ui (f->shape[0], array->rank);
 729     }
 730
 731   f->value.function.name = lbound;
 732 }
 733
 734
 735 void
 736 gfc_resolve_len (gfc_expr * f, gfc_expr * string)
 737 {
 738
 739   f->ts.type = BT_INTEGER;
 740   f->ts.kind = gfc_default_integer_kind;
 741   f->value.function.name = gfc_get_string ("__len_%d", string->ts.kind);
 742 }
 743
 744
 745 void
 746 gfc_resolve_len_trim (gfc_expr * f, gfc_expr * string)
 747 {
 748
 749   f->ts.type = BT_INTEGER;
 750   f->ts.kind = gfc_default_integer_kind;
 751   f->value.function.name = gfc_get_string ("__len_trim%d", string->ts.kind);
 752 }
 753
 754
 755 void
 756 gfc_resolve_log (gfc_expr * f, gfc_expr * x)
 757 {
 758
 759   f->ts = x->ts;
 760   f->value.function.name =
 761     gfc_get_string ("__log_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
 762 }
 763
 764
 765 void
 766 gfc_resolve_log10 (gfc_expr * f, gfc_expr * x)
 767 {
 768
 769   f->ts = x->ts;
 770   f->value.function.name =
 771     gfc_get_string ("__log10_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
 772 }
 773
 774
 775 void
 776 gfc_resolve_logical (gfc_expr * f, gfc_expr * a, gfc_expr * kind)
 777 {
 778
 779   f->ts.type = BT_LOGICAL;
 780   f->ts.kind = (kind == NULL) ? gfc_default_logical_kind
 781     : mpz_get_si (kind->value.integer);
 782   f->rank = a->rank;
 783
 784   f->value.function.name =
 785     gfc_get_string ("__logical_%d_%c%d", f->ts.kind,
 786                     gfc_type_letter (a->ts.type), a->ts.kind);
 787 }
 788
 789
 790 void
 791 gfc_resolve_matmul (gfc_expr * f, gfc_expr * a, gfc_expr * b)
 792 {
 793   gfc_expr temp;
 794
 795   if (a->ts.type == BT_LOGICAL && b->ts.type == BT_LOGICAL)
 796     {
 797       f->ts.type = BT_LOGICAL;
 798       f->ts.kind = gfc_default_logical_kind;
 799     }
 800   else
 801     {
 802       temp.expr_type = EXPR_OP;
 803       gfc_clear_ts (&temp.ts);
 804       temp.operator = INTRINSIC_NONE;
 805       temp.op1 = a;
 806       temp.op2 = b;
 807       gfc_type_convert_binary (&temp);
 808       f->ts = temp.ts;
 809     }
 810
 811   f->rank = (a->rank == 2 && b->rank == 2) ? 2 : 1;
 812
 813   f->value.function.name =
 814     gfc_get_string ("__matmul_%c%d", gfc_type_letter (f->ts.type),
 815                     f->ts.kind);
 816 }
 817
 818
 819 static void
 820 gfc_resolve_minmax (const char * name, gfc_expr * f, gfc_actual_arglist * args)
 821 {
 822   gfc_actual_arglist *a;
 823
 824   f->ts.type = args->expr->ts.type;
 825   f->ts.kind = args->expr->ts.kind;
 826   /* Find the largest type kind.  */
 827   for (a = args->next; a; a = a->next)
 828     {
 829       if (a->expr->ts.kind > f->ts.kind)
 830         f->ts.kind = a->expr->ts.kind;
 831     }
 832
 833   /* Convert all parameters to the required kind.  */
 834   for (a = args; a; a = a->next)
 835     {
 836       if (a->expr->ts.kind != f->ts.kind)
 837         gfc_convert_type (a->expr, &f->ts, 2);
 838     }
 839
 840   f->value.function.name =
 841     gfc_get_string (name, gfc_type_letter (f->ts.type), f->ts.kind);
 842 }
 843
 844
 845 void
 846 gfc_resolve_max (gfc_expr * f, gfc_actual_arglist * args)
 847 {
 848   gfc_resolve_minmax ("__max_%c%d", f, args);
 849 }
 850
 851
 852 void
 853 gfc_resolve_maxloc (gfc_expr * f, gfc_expr * array, gfc_expr * dim,
 854                     gfc_expr * mask)
 855 {
 856   const char *name;
 857
 858   f->ts.type = BT_INTEGER;
 859   f->ts.kind = gfc_default_integer_kind;
 860
 861   if (dim == NULL)
 862     f->rank = 1;
 863   else
 864     {
 865       f->rank = array->rank - 1;
 866       gfc_resolve_index (dim, 1);
 867     }
 868
 869   name = mask ? "mmaxloc" : "maxloc";
 870   f->value.function.name =
 871     gfc_get_string ("__%s%d_%d_%c%d", name, dim != NULL, f->ts.kind,
 872                     gfc_type_letter (array->ts.type), array->ts.kind);
 873 }
 874
 875
 876 void
 877 gfc_resolve_maxval (gfc_expr * f, gfc_expr * array, gfc_expr * dim,
 878                     gfc_expr * mask)
 879 {
 880
 881   f->ts = array->ts;
 882
 883   if (dim != NULL)
 884     {
 885       f->rank = array->rank - 1;
 886       gfc_resolve_index (dim, 1);
 887     }
 888
 889   f->value.function.name =
 890     gfc_get_string ("__%s_%c%d", mask ? "mmaxval" : "maxval",
 891                     gfc_type_letter (array->ts.type), array->ts.kind);
 892 }
 893
 894
 895 void
 896 gfc_resolve_merge (gfc_expr * f, gfc_expr * tsource,
 897                    gfc_expr * fsource ATTRIBUTE_UNUSED,
 898                    gfc_expr * mask ATTRIBUTE_UNUSED)
 899 {
 900
 901   f->ts = tsource->ts;
 902   f->value.function.name =
 903     gfc_get_string ("__merge_%c%d", gfc_type_letter (tsource->ts.type),
 904                     tsource->ts.kind);
 905 }
 906
 907
 908 void
 909 gfc_resolve_min (gfc_expr * f, gfc_actual_arglist * args)
 910 {
 911   gfc_resolve_minmax ("__min_%c%d", f, args);
 912 }
 913
 914
 915 void
 916 gfc_resolve_minloc (gfc_expr * f, gfc_expr * array, gfc_expr * dim,
 917                     gfc_expr * mask)
 918 {
 919   const char *name;
 920
 921   f->ts.type = BT_INTEGER;
 922   f->ts.kind = gfc_default_integer_kind;
 923
 924   if (dim == NULL)
 925     f->rank = 1;
 926   else
 927     {
 928       f->rank = array->rank - 1;
 929       gfc_resolve_index (dim, 1);
 930     }
 931
 932   name = mask ? "mminloc" : "minloc";
 933   f->value.function.name =
 934     gfc_get_string ("__%s%d_%d_%c%d", name, dim != NULL, f->ts.kind,
 935                     gfc_type_letter (array->ts.type), array->ts.kind);
 936 }
 937
 938
 939 void
 940 gfc_resolve_minval (gfc_expr * f, gfc_expr * array, gfc_expr * dim,
 941                     gfc_expr * mask)
 942 {
 943
 944   f->ts = array->ts;
 945
 946   if (dim != NULL)
 947     {
 948       f->rank = array->rank - 1;
 949       gfc_resolve_index (dim, 1);
 950     }
 951
 952   f->value.function.name =
 953     gfc_get_string ("__%s_%c%d", mask ? "mminval" : "minval",
 954                     gfc_type_letter (array->ts.type), array->ts.kind);
 955 }
 956
 957
 958 void
 959 gfc_resolve_mod (gfc_expr * f, gfc_expr * a,
 960                  gfc_expr * p ATTRIBUTE_UNUSED)
 961 {
 962
 963   f->ts = a->ts;
 964   f->value.function.name =
 965     gfc_get_string ("__mod_%c%d", gfc_type_letter (a->ts.type), a->ts.kind);
 966 }
 967
 968
 969 void
 970 gfc_resolve_modulo (gfc_expr * f, gfc_expr * a,
 971                     gfc_expr * p ATTRIBUTE_UNUSED)
 972 {
 973
 974   f->ts = a->ts;
 975   f->value.function.name =
 976     gfc_get_string ("__modulo_%c%d", gfc_type_letter (a->ts.type),
 977                     a->ts.kind);
 978 }
 979
 980 void
 981 gfc_resolve_nearest (gfc_expr * f, gfc_expr * a,
 982              gfc_expr *p ATTRIBUTE_UNUSED)
 983 {
 984
 985   f->ts = a->ts;
 986   f->value.function.name =
 987     gfc_get_string ("__nearest_%c%d", gfc_type_letter (a->ts.type),
 988             a->ts.kind);
 989 }
 990
 991 void
 992 gfc_resolve_nint (gfc_expr * f, gfc_expr * a, gfc_expr * kind)
 993 {
 994
 995   f->ts.type = BT_INTEGER;
 996   f->ts.kind = (kind == NULL) ? gfc_default_integer_kind
 997     : mpz_get_si (kind->value.integer);
 998
 999   f->value.function.name =
1000     gfc_get_string ("__nint_%d_%d", f->ts.kind, a->ts.kind);
1001 }
1002
1003
1004 void
1005 gfc_resolve_not (gfc_expr * f, gfc_expr * i)
1006 {
1007
1008   f->ts = i->ts;
1009   f->value.function.name = gfc_get_string ("__not_%d", i->ts.kind);
1010 }
1011
1012
1013 void
1014 gfc_resolve_pack (gfc_expr * f,
1015                   gfc_expr * array ATTRIBUTE_UNUSED,
1016                   gfc_expr * mask ATTRIBUTE_UNUSED,
1017                   gfc_expr * vector ATTRIBUTE_UNUSED)
1018 {
1019   static char pack[] = "__pack";
1020
1021   f->ts = array->ts;
1022   f->rank = 1;
1023
1024   f->value.function.name = pack;
1025 }
1026
1027
1028 void
1029 gfc_resolve_product (gfc_expr * f, gfc_expr * array, gfc_expr * dim,
1030                      gfc_expr * mask)
1031 {
1032
1033   f->ts = array->ts;
1034
1035   if (dim != NULL)
1036     {
1037       f->rank = array->rank - 1;
1038       gfc_resolve_index (dim, 1);
1039     }
1040
1041   f->value.function.name =
1042     gfc_get_string ("__%s_%c%d", mask ? "mproduct" : "product",
1043                     gfc_type_letter (array->ts.type), array->ts.kind);
1044 }
1045
1046
1047 void
1048 gfc_resolve_real (gfc_expr * f, gfc_expr * a, gfc_expr * kind)
1049 {
1050
1051   f->ts.type = BT_REAL;
1052
1053   if (kind != NULL)
1054     f->ts.kind = mpz_get_si (kind->value.integer);
1055   else
1056     f->ts.kind = (a->ts.type == BT_COMPLEX) ?
1057       a->ts.kind : gfc_default_real_kind;
1058
1059   f->value.function.name =
1060     gfc_get_string ("__real_%d_%c%d", f->ts.kind,
1061                     gfc_type_letter (a->ts.type), a->ts.kind);
1062 }
1063
1064
1065 void
1066 gfc_resolve_repeat (gfc_expr * f, gfc_expr * string,
1067                    gfc_expr * ncopies ATTRIBUTE_UNUSED)
1068 {
1069
1070   f->ts.type = BT_CHARACTER;
1071   f->ts.kind = string->ts.kind;
1072   f->value.function.name = gfc_get_string ("__repeat_%d", string->ts.kind);
1073 }
1074
1075
1076 void
1077 gfc_resolve_reshape (gfc_expr * f, gfc_expr * source, gfc_expr * shape,
1078                      gfc_expr * pad ATTRIBUTE_UNUSED,
1079                      gfc_expr * order ATTRIBUTE_UNUSED)
1080 {
1081   static char reshape0[] = "__reshape";
1082   mpz_t rank;
1083   int kind;
1084   int i;
1085
1086   f->ts = source->ts;
1087
1088   gfc_array_size (shape, &rank);
1089   f->rank = mpz_get_si (rank);
1090   mpz_clear (rank);
1091   switch (source->ts.type)
1092     {
1093     case BT_COMPLEX:
1094       kind = source->ts.kind * 2;
1095       break;
1096
1097     case BT_REAL:
1098     case BT_INTEGER:
1099     case BT_LOGICAL:
1100       kind = source->ts.kind;
1101       break;
1102
1103     default:
1104       kind = 0;
1105       break;
1106     }
1107
1108   switch (kind)
1109     {
1110     case 4:
1111     case 8:
1112     /* case 16: */
1113       f->value.function.name =
1114         gfc_get_string ("__reshape_%d", source->ts.kind);
1115       break;
1116
1117     default:
1118       f->value.function.name = reshape0;
1119       break;
1120     }
1121
1122   /* TODO: Make this work with a constant ORDER parameter.  */
1123   if (shape->expr_type == EXPR_ARRAY
1124       && gfc_is_constant_expr (shape)
1125       && order == NULL)
1126     {
1127       gfc_constructor *c;
1128       f->shape = gfc_get_shape (f->rank);
1129       c = shape->value.constructor;
1130       for (i = 0; i < f->rank; i++)
1131         {
1132           mpz_init_set (f->shape[i], c->expr->value.integer);
1133           c = c->next;
1134         }
1135     }
1136 }
1137
1138
1139 void
1140 gfc_resolve_rrspacing (gfc_expr * f, gfc_expr * x)
1141 {
1142
1143   f->ts = x->ts;
1144   f->value.function.name = gfc_get_string ("__rrspacing_%d", x->ts.kind);
1145 }
1146
1147
1148 void
1149 gfc_resolve_scale (gfc_expr * f, gfc_expr * x,
1150                    gfc_expr * y ATTRIBUTE_UNUSED)
1151 {
1152
1153   f->ts = x->ts;
1154   f->value.function.name = gfc_get_string ("__scale_%d_%d", x->ts.kind,
1155                                            x->ts.kind);
1156 }
1157
1158
1159 void
1160 gfc_resolve_scan (gfc_expr * f, gfc_expr * string,
1161                   gfc_expr * set ATTRIBUTE_UNUSED,
1162                   gfc_expr * back ATTRIBUTE_UNUSED)
1163 {
1164
1165   f->ts.type = BT_INTEGER;
1166   f->ts.kind = gfc_default_integer_kind;
1167   f->value.function.name = gfc_get_string ("__scan_%d", string->ts.kind);
1168 }
1169
1170
1171 void
1172 gfc_resolve_set_exponent (gfc_expr * f, gfc_expr * x, gfc_expr * i)
1173 {
1174
1175   f->ts = x->ts;
1176   f->value.function.name =
1177     gfc_get_string ("__set_exponent_%d_%d", x->ts.kind, i->ts.kind);
1178 }
1179
1180
1181 void
1182 gfc_resolve_shape (gfc_expr * f, gfc_expr * array)
1183 {
1184
1185   f->ts.type = BT_INTEGER;
1186   f->ts.kind = gfc_default_integer_kind;
1187   f->rank = 1;
1188   f->value.function.name = gfc_get_string ("__shape_%d", f->ts.kind);
1189   f->shape = gfc_get_shape (1);
1190   mpz_init_set_ui (f->shape[0], array->rank);
1191 }
1192
1193
1194 void
1195 gfc_resolve_sign (gfc_expr * f, gfc_expr * a, gfc_expr * b ATTRIBUTE_UNUSED)
1196 {
1197
1198   f->ts = a->ts;
1199   f->value.function.name =
1200     gfc_get_string ("__sign_%c%d", gfc_type_letter (a->ts.type), a->ts.kind);
1201 }
1202
1203
1204 void
1205 gfc_resolve_sin (gfc_expr * f, gfc_expr * x)
1206 {
1207
1208   f->ts = x->ts;
1209   f->value.function.name =
1210     gfc_get_string ("__sin_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
1211 }
1212
1213
1214 void
1215 gfc_resolve_sinh (gfc_expr * f, gfc_expr * x)
1216 {
1217
1218   f->ts = x->ts;
1219   f->value.function.name =
1220     gfc_get_string ("__sinh_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
1221 }
1222
1223
1224 void
1225 gfc_resolve_spacing (gfc_expr * f, gfc_expr * x)
1226 {
1227
1228   f->ts = x->ts;
1229   f->value.function.name = gfc_get_string ("__spacing_%d", x->ts.kind);
1230 }
1231
1232
1233 void
1234 gfc_resolve_spread (gfc_expr * f, gfc_expr * source,
1235                     gfc_expr * dim,
1236                     gfc_expr * ncopies)
1237 {
1238   static char spread[] = "__spread";
1239
1240   f->ts = source->ts;
1241   f->rank = source->rank + 1;
1242   f->value.function.name = spread;
1243
1244   gfc_resolve_index (dim, 1);
1245   gfc_resolve_index (ncopies, 1);
1246 }
1247
1248
1249 void
1250 gfc_resolve_sqrt (gfc_expr * f, gfc_expr * x)
1251 {
1252
1253   f->ts = x->ts;
1254   f->value.function.name =
1255     gfc_get_string ("__sqrt_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
1256 }
1257
1258
1259 void
1260 gfc_resolve_sum (gfc_expr * f, gfc_expr * array, gfc_expr * dim,
1261                  gfc_expr * mask)
1262 {
1263
1264   f->ts = array->ts;
1265
1266   if (dim != NULL)
1267     {
1268       f->rank = array->rank - 1;
1269       gfc_resolve_index (dim, 1);
1270     }
1271
1272   f->value.function.name =
1273     gfc_get_string ("__%s_%c%d", mask ? "msum" : "sum",
1274                     gfc_type_letter (array->ts.type), array->ts.kind);
1275 }
1276
1277
1278 void
1279 gfc_resolve_tan (gfc_expr * f, gfc_expr * x)
1280 {
1281
1282   f->ts = x->ts;
1283   f->value.function.name =
1284     gfc_get_string ("__tan_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
1285 }
1286
1287
1288 void
1289 gfc_resolve_tanh (gfc_expr * f, gfc_expr * x)
1290 {
1291
1292   f->ts = x->ts;
1293   f->value.function.name =
1294     gfc_get_string ("__tanh_%c%d", gfc_type_letter (x->ts.type), x->ts.kind);
1295 }
1296
1297
1298 void
1299 gfc_resolve_transfer (gfc_expr * f, gfc_expr * source ATTRIBUTE_UNUSED,
1300                       gfc_expr * mold, gfc_expr * size)
1301 {
1302   /* TODO: Make this do something meaningful.  */
1303   static char transfer0[] = "__transfer0", transfer1[] = "__transfer1";
1304
1305   f->ts = mold->ts;
1306
1307   if (size == NULL && mold->rank == 0)
1308     {
1309       f->rank = 0;
1310       f->value.function.name = transfer0;
1311     }
1312   else
1313     {
1314       f->rank = 1;
1315       f->value.function.name = transfer1;
1316     }
1317 }
1318
1319
1320 void
1321 gfc_resolve_transpose (gfc_expr * f, gfc_expr * matrix)
1322 {
1323   static char transpose0[] = "__transpose";
1324   int kind;
1325
1326   f->ts = matrix->ts;
1327   f->rank = 2;
1328   if (matrix->shape)
1329     {
1330       f->shape = gfc_get_shape (2);
1331       mpz_init_set (f->shape[0], matrix->shape[1]);
1332       mpz_init_set (f->shape[1], matrix->shape[0]);
1333     }
1334
1335   switch (matrix->ts.type)
1336     {
1337     case BT_COMPLEX:
1338       kind = matrix->ts.kind * 2;
1339       break;
1340
1341     case BT_REAL:
1342     case BT_INTEGER:
1343     case BT_LOGICAL:
1344       kind = matrix->ts.kind;
1345       break;
1346
1347     default:
1348       kind = 0;
1349       break;
1350
1351     }
1352
1353   switch (kind)
1354     {
1355     case 4:
1356     case 8:
1357     /* case 16: */
1358       f->value.function.name =
1359         gfc_get_string ("__transpose_%d", kind);
1360       break;
1361
1362     default:
1363       f->value.function.name = transpose0;
1364     }
1365 }
1366
1367
1368 void
1369 gfc_resolve_trim (gfc_expr * f, gfc_expr * string)
1370 {
1371
1372   f->ts.type = BT_CHARACTER;
1373   f->ts.kind = string->ts.kind;
1374   f->value.function.name = gfc_get_string ("__trim_%d", string->ts.kind);
1375 }
1376
1377
1378 void
1379 gfc_resolve_ubound (gfc_expr * f, gfc_expr * array,
1380                     gfc_expr * dim)
1381 {
1382   static char ubound[] = "__ubound";
1383
1384   f->ts.type = BT_INTEGER;
1385   f->ts.kind = gfc_default_integer_kind;
1386
1387   if (dim == NULL)
1388     {
1389       f->rank = 1;
1390       f->shape = gfc_get_shape (1);
1391       mpz_init_set_ui (f->shape[0], array->rank);
1392     }
1393
1394   f->value.function.name = ubound;
1395 }
1396
1397
1398 void
1399 gfc_resolve_unpack (gfc_expr * f, gfc_expr * vector, gfc_expr * mask,
1400                     gfc_expr * field ATTRIBUTE_UNUSED)
1401 {
1402
1403   f->ts.type = vector->ts.type;
1404   f->ts.kind = vector->ts.kind;
1405   f->rank = mask->rank;
1406
1407   f->value.function.name =
1408     gfc_get_string ("__unpack%d", field->rank > 0 ? 1 : 0);
1409 }
1410
1411
1412 void
1413 gfc_resolve_verify (gfc_expr * f, gfc_expr * string,
1414                     gfc_expr * set ATTRIBUTE_UNUSED,
1415                     gfc_expr * back ATTRIBUTE_UNUSED)
1416 {
1417
1418   f->ts.type = BT_INTEGER;
1419   f->ts.kind = gfc_default_integer_kind;
1420   f->value.function.name = gfc_get_string ("__verify_%d", string->ts.kind);
1421 }
1422
1423
1424 /* Intrinsic subroutine resolution.  */
1425
1426 void
1427 gfc_resolve_cpu_time (gfc_code * c ATTRIBUTE_UNUSED)
1428 {
1429   const char *name;
1430
1431   name = gfc_get_string (PREFIX("cpu_time_%d"),
1432                          c->ext.actual->expr->ts.kind);
1433   c->resolved_sym = gfc_get_intrinsic_sub_symbol (name);
1434 }
1435
1436
1437 void
1438 gfc_resolve_random_number (gfc_code * c ATTRIBUTE_UNUSED)
1439 {
1440   const char *name;
1441   int kind;
1442
1443   kind = c->ext.actual->expr->ts.kind;
1444   if (c->ext.actual->expr->rank == 0)
1445     name = gfc_get_string (PREFIX("random_r%d"), kind);
1446   else
1447     name = gfc_get_string (PREFIX("arandom_r%d"), kind);
1448
1449   c->resolved_sym = gfc_get_intrinsic_sub_symbol (name);
1450
1451 }
1452
1453
1454 /* G77 compatibility subroutines etime() and dtime().  */
1455
1456 void
1457 gfc_resolve_etime_sub (gfc_code * c)
1458 {
1459   const char *name;
1460
1461   name = gfc_get_string (PREFIX("etime_sub"));
1462   c->resolved_sym = gfc_get_intrinsic_sub_symbol (name);
1463 }
1464
1465
1466 /* G77 compatibility subroutine second().  */
1467
1468 void
1469 gfc_resolve_second_sub (gfc_code * c)
1470 {
1471   const char *name;
1472
1473   name = gfc_get_string (PREFIX("second_sub"));
1474   c->resolved_sym = gfc_get_intrinsic_sub_symbol (name);
1475 }
1476
1477
1478 /* G77 compatibility function srand().  */
1479
1480 void
1481 gfc_resolve_srand (gfc_code * c)
1482 {
1483   const char *name;
1484   name = gfc_get_string (PREFIX("srand"));
1485   c->resolved_sym = gfc_get_intrinsic_sub_symbol (name);
1486 }
1487
1488
1489 /* Resolve the getarg intrinsic subroutine.  */
1490
1491 void
1492 gfc_resolve_getarg (gfc_code * c)
1493 {
1494   const char *name;
1495   int kind;
1496
1497   kind = gfc_default_integer_kind;
1498   name = gfc_get_string (PREFIX("getarg_i%d"), kind);
1499   c->resolved_sym = gfc_get_intrinsic_sub_symbol (name);
1500 }
1501
1502
1503 /* Resolve the get_command intrinsic subroutine.  */
1504
1505 void
1506 gfc_resolve_get_command (gfc_code * c)
1507 {
1508   const char *name;
1509   int kind;
1510
1511   kind = gfc_default_integer_kind;
1512   name = gfc_get_string (PREFIX("get_command_i%d"), kind);
1513   c->resolved_sym = gfc_get_intrinsic_sub_symbol (name);
1514 }
1515
1516
1517 /* Resolve the get_command_argument intrinsic subroutine.  */
1518
1519 void
1520 gfc_resolve_get_command_argument (gfc_code * c)
1521 {
1522   const char *name;
1523   int kind;
1524
1525   kind = gfc_default_integer_kind;
1526   name = gfc_get_string (PREFIX("get_command_argument_i%d"), kind);
1527   c->resolved_sym = gfc_get_intrinsic_sub_symbol (name);
1528 }
1529
1530 /* Resolve the get_environment_variable intrinsic subroutine. */
1531
1532 void
1533 gfc_resolve_get_environment_variable (gfc_code * code)
1534 {
1535   const char *name;
1536   int kind;
1537
1538   kind = gfc_default_integer_kind;
1539   name = gfc_get_string (PREFIX("get_environment_variable_i%d"), kind);
1540   code->resolved_sym = gfc_get_intrinsic_sub_symbol (name);
1541 }
1542
1543
1544 /* Determine if the arguments to SYSTEM_CLOCK are INTEGER(4) or INTEGER(8) */
1545
1546 void
1547 gfc_resolve_system_clock (gfc_code * c)
1548 {
1549   const char *name;
1550   int kind;
1551
1552   if (c->ext.actual->expr != NULL)
1553     kind = c->ext.actual->expr->ts.kind;
1554   else if (c->ext.actual->next->expr != NULL)
1555       kind = c->ext.actual->next->expr->ts.kind;
1556   else if (c->ext.actual->next->next->expr != NULL)
1557       kind = c->ext.actual->next->next->expr->ts.kind;
1558   else
1559     kind = gfc_default_integer_kind;
1560
1561   name = gfc_get_string (PREFIX("system_clock_%d"), kind);
1562   c->resolved_sym = gfc_get_intrinsic_sub_symbol (name);
1563 }
1564
1565 void
1566 gfc_iresolve_init_1 (void)
1567 {
1568   int i;
1569
1570   for (i = 0; i < HASH_SIZE; i++)
1571     string_head[i] = NULL;
1572 }
1573
1574
1575 void
1576 gfc_iresolve_done_1 (void)
1577 {
1578
1579   free_strings ();
1580 }