Line data    Source code

       1              : /* Array and structure constructors
       2              :    Copyright (C) 2009-2026 Free Software Foundation, Inc.
       3              : 
       4              : This file is part of GCC.
       5              : 
       6              : GCC is free software; you can redistribute it and/or modify it under
       7              : the terms of the GNU General Public License as published by the Free
       8              : Software Foundation; either version 3, or (at your option) any later
       9              : version.
      10              : 
      11              : GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      12              : WARRANTY; without even the implied warranty of MERCHANTABILITY or
      13              : FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      14              : for more details.
      15              : 
      16              : You should have received a copy of the GNU General Public License
      17              : along with GCC; see the file COPYING3.  If not see
      18              : <http://www.gnu.org/licenses/>.  */
      19              : 
      20              : #include "config.h"
      21              : #include "system.h"
      22              : #include "coretypes.h"
      23              : #include "gfortran.h"
      24              : #include "constructor.h"
      25              : 
      26              : 
      27              : static void
      28      3119264 : node_free (splay_tree_value value)
      29              : {
      30      3119264 :   gfc_constructor *c = (gfc_constructor*)value;
      31              : 
      32      3119264 :   if (c->expr)
      33      3101266 :     gfc_free_expr (c->expr);
      34              : 
      35      3119264 :   if (c->iterator)
      36         9341 :     gfc_free_iterator (c->iterator, 1);
      37              : 
      38      3119264 :   mpz_clear (c->offset);
      39      3119264 :   mpz_clear (c->repeat);
      40              : 
      41      3119264 :   free (c);
      42      3119264 : }
      43              : 
      44              : 
      45              : static gfc_constructor *
      46       870602 : node_copy (splay_tree_node node, void *base)
      47              : {
      48       870602 :   gfc_constructor *c, *src = (gfc_constructor*)node->value;
      49              : 
      50       870602 :   c = XCNEW (gfc_constructor);
      51       870602 :   c->base = (gfc_constructor_base)base;
      52       870602 :   c->expr = gfc_copy_expr (src->expr);
      53       870602 :   c->iterator = gfc_copy_iterator (src->iterator);
      54       870602 :   c->where = src->where;
      55       870602 :   c->n.component = src->n.component;
      56              : 
      57       870602 :   mpz_init_set (c->offset, src->offset);
      58       870602 :   mpz_init_set (c->repeat, src->repeat);
      59              : 
      60       870602 :   return c;
      61              : }
      62              : 
      63              : 
      64              : static int
      65       870602 : node_copy_and_insert (splay_tree_node node, void *base)
      66              : {
      67       870602 :   int n = mpz_get_si (((gfc_constructor*)node->value)->offset);
      68       870602 :   gfc_constructor_insert ((gfc_constructor_base*)base,
      69              :                           node_copy (node, base), n);
      70       870602 :   return 0;
      71              : }
      72              : 
      73              : 
      74              : gfc_constructor *
      75      2264845 : gfc_constructor_get (void)
      76              : {
      77      2264845 :   gfc_constructor *c = XCNEW (gfc_constructor);
      78      2264845 :   c->base = NULL;
      79      2264845 :   c->expr = NULL;
      80      2264845 :   c->iterator = NULL;
      81              : 
      82      2264845 :   mpz_init_set_si (c->offset, 0);
      83      2264845 :   mpz_init_set_si (c->repeat, 1);
      84              : 
      85      2264845 :   return c;
      86              : }
      87              : 
      88              : static gfc_constructor_base
      89       121765 : gfc_constructor_get_base (void)
      90              : {
      91            0 :   return splay_tree_new (splay_tree_compare_ints, NULL, node_free);
      92              : }
      93              : 
      94              : 
      95              : gfc_constructor_base
      96       123115 : gfc_constructor_copy (gfc_constructor_base base)
      97              : {
      98       123115 :   gfc_constructor_base new_base;
      99              : 
     100       123115 :   if (!base)
     101              :     return NULL;
     102              : 
     103       121765 :   new_base = gfc_constructor_get_base ();
     104       121765 :   splay_tree_foreach (base, node_copy_and_insert, &new_base);
     105              : 
     106       121765 :   return new_base;
     107              : }
     108              : 
     109              : 
     110              : void
     111       460437 : gfc_constructor_free (gfc_constructor_base base)
     112              : {
     113       460437 :   if (base)
     114       444137 :     splay_tree_delete (base);
     115       460437 : }
     116              : 
     117              : 
     118              : gfc_constructor *
     119      2256943 : gfc_constructor_append (gfc_constructor_base *base, gfc_constructor *c)
     120              : {
     121      2256943 :   int offset = 0;
     122      2256943 :   if (*base)
     123      1928663 :     offset = (int)(splay_tree_max (*base)->key) + 1;
     124              : 
     125      2256943 :   return gfc_constructor_insert (base, c, offset);
     126              : }
     127              : 
     128              : 
     129              : gfc_constructor *
     130      2122755 : gfc_constructor_append_expr (gfc_constructor_base *base,
     131              :                              gfc_expr *e, locus *where)
     132              : {
     133      2122755 :   gfc_constructor *c = gfc_constructor_get ();
     134      2122755 :   c->expr = e;
     135      2122755 :   if (where)
     136      2046719 :     c->where = *where;
     137              : 
     138      2122755 :   return gfc_constructor_append (base, c);
     139              : }
     140              : 
     141              : 
     142              : gfc_constructor *
     143      3135446 : gfc_constructor_insert (gfc_constructor_base *base, gfc_constructor *c, int n)
     144              : {
     145      3135446 :   splay_tree_node node;
     146              : 
     147      3135446 :   if (*base == NULL)
     148       329324 :     *base = splay_tree_new (splay_tree_compare_ints, NULL, node_free);
     149              : 
     150      3135446 :   c->base = *base;
     151      3135446 :   mpz_set_si (c->offset, n);
     152              : 
     153      3135446 :   node = splay_tree_insert (*base, (splay_tree_key) n, (splay_tree_value) c);
     154      3135446 :   gcc_assert (node);
     155              : 
     156      3135446 :   return (gfc_constructor*)node->value;
     157              : }
     158              : 
     159              : 
     160              : gfc_constructor *
     161         7901 : gfc_constructor_insert_expr (gfc_constructor_base *base,
     162              :                              gfc_expr *e, locus *where, int n)
     163              : {
     164         7901 :   gfc_constructor *c = gfc_constructor_get ();
     165         7901 :   c->expr = e;
     166         7901 :   if (where)
     167         7377 :     c->where = *where;
     168              : 
     169         7901 :   return gfc_constructor_insert (base, c, n);
     170              : }
     171              : 
     172              : 
     173              : gfc_constructor *
     174       180191 : gfc_constructor_lookup (gfc_constructor_base base, int offset)
     175              : {
     176       180191 :   gfc_constructor *c;
     177       180191 :   splay_tree_node node;
     178              : 
     179       180191 :   if (!base)
     180              :     return NULL;
     181              : 
     182       179231 :   node = splay_tree_lookup (base, (splay_tree_key) offset);
     183       179231 :   if (node)
     184       165903 :     return (gfc_constructor *) node->value;
     185              : 
     186              :   /* Check if the previous node has a repeat count big enough to
     187              :      cover the offset looked for.  */
     188        13328 :   node = splay_tree_predecessor (base, (splay_tree_key) offset);
     189        13328 :   if (!node)
     190              :     return NULL;
     191              : 
     192        13083 :   c = (gfc_constructor *) node->value;
     193        13083 :   if (mpz_cmp_si (c->repeat, 1) > 0)
     194              :     {
     195           29 :       if (mpz_get_si (c->offset) + mpz_get_si (c->repeat) <= offset)
     196        14279 :         c = NULL;
     197              :     }
     198              :   else
     199              :     c = NULL;
     200              : 
     201              :   return c;
     202              : }
     203              : 
     204              : 
     205              : gfc_expr *
     206       160541 : gfc_constructor_lookup_expr (gfc_constructor_base base, int offset)
     207              : {
     208       160541 :   gfc_constructor *c = gfc_constructor_lookup (base, offset);
     209       160541 :   return c ? c->expr : NULL;
     210              : }
     211              : 
     212              : 
     213              : gfc_constructor *
     214     13117385 : gfc_constructor_first (gfc_constructor_base base)
     215              : {
     216     13117385 :   if (base)
     217              :     {
     218     13079404 :       splay_tree_node node = splay_tree_min (base);
     219     13079404 :       return node ? (gfc_constructor*) node->value : NULL;
     220              :     }
     221              :   else
     222              :     return NULL;
     223              : }
     224              : 
     225              : 
     226              : gfc_constructor *
     227     27862445 : gfc_constructor_next (gfc_constructor *ctor)
     228              : {
     229     27862445 :   if (ctor)
     230              :     {
     231     55724496 :       splay_tree_node node = splay_tree_successor (ctor->base,
     232     27862248 :                                                    mpz_get_si (ctor->offset));
     233     27862248 :       return node ? (gfc_constructor*) node->value : NULL;
     234              :     }
     235              :   else
     236              :     return NULL;
     237              : }
     238              : 
     239              : 
     240              : void
     241           10 : gfc_constructor_remove (gfc_constructor *ctor)
     242              : {
     243           10 :   if (ctor)
     244           10 :     splay_tree_remove (ctor->base, mpz_get_si (ctor->offset));
     245           10 : }
     246              : 
     247              : 
     248              : gfc_constructor *
     249          131 : gfc_constructor_lookup_next (gfc_constructor_base base, int offset)
     250              : {
     251          131 :   splay_tree_node node;
     252              : 
     253          131 :   if (!base)
     254              :     return NULL;
     255              : 
     256           24 :   node = splay_tree_successor (base, (splay_tree_key) offset);
     257           24 :   if (!node)
     258              :     return NULL;
     259              : 
     260            4 :   return (gfc_constructor *) node->value;
     261              : }