gcc/fortran/trans-array.h

   1 /* Header for array handling functions
   2    Copyright (C) 2002, 2003 Free Software Foundation, Inc.
   3    Contributed by Paul Brook
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to the Free
  19 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
  20 02110-1301, USA.  */
  21
  22 /* Generate code to free an array.  */
  23 tree gfc_array_deallocate (tree, tree);
  24
  25 /* Generate code to initialize an allocate an array.  Statements are added to
  26    se, which should contain an expression for the array descriptor.  */
  27 void gfc_array_allocate (gfc_se *, gfc_ref *, tree);
  28
  29 /* Allow the bounds of a loop to be set from a callee's array spec.  */
  30 void gfc_set_loop_bounds_from_array_spec (gfc_interface_mapping *,
  31                                           gfc_se *, gfc_array_spec *);
  32
  33 /* Generate code to allocate a temporary array.  */
  34 tree gfc_trans_allocate_temp_array (stmtblock_t *, stmtblock_t *,
  35                                     gfc_loopinfo *, gfc_ss_info *, tree, bool);
  36
  37 /* Generate function entry code for allocation of compiler allocated array
  38    variables.  */
  39 tree gfc_trans_auto_array_allocation (tree, gfc_symbol *, tree);
  40 /* Generate entry and exit code for dummy array parameters.  */
  41 tree gfc_trans_dummy_array_bias (gfc_symbol *, tree, tree);
  42 /* Generate entry and exit code for g77 calling convention arrays.  */
  43 tree gfc_trans_g77_array (gfc_symbol *, tree);
  44 /* Add initialization for deferred arrays.  */
  45 tree gfc_trans_deferred_array (gfc_symbol *, tree);
  46 /* Generate an initializer for a static pointer or allocatable array.  */
  47 void gfc_trans_static_array_pointer (gfc_symbol *);
  48
  49 /* Generate scalarization information for an expression.  */
  50 gfc_ss *gfc_walk_expr (gfc_expr *);
  51 /* Walk the arguments of an elemental function.  */
  52 gfc_ss *gfc_walk_elemental_function_args (gfc_ss *, gfc_actual_arglist *,
  53                                           gfc_ss_type);
  54 /* Walk an intrinsic function.  */
  55 gfc_ss *gfc_walk_intrinsic_function (gfc_ss *, gfc_expr *,
  56                                      gfc_intrinsic_sym *);
  57 /* Reverse the order of an SS chain.  */
  58 gfc_ss *gfc_reverse_ss (gfc_ss *);
  59
  60 /* Free the SS associated with a loop.  */
  61 void gfc_cleanup_loop (gfc_loopinfo *);
  62 /* Associate a SS chain with a loop.  */
  63 void gfc_add_ss_to_loop (gfc_loopinfo *, gfc_ss *);
  64 /* Mark a SS chain as used in this loop.  */
  65 void gfc_mark_ss_chain_used (gfc_ss *, unsigned);
  66
  67 /* Calculates the lower bound and stride of array sections.  */
  68 void gfc_conv_ss_startstride (gfc_loopinfo *);
  69
  70 void gfc_init_loopinfo (gfc_loopinfo *);
  71 void gfc_copy_loopinfo_to_se (gfc_se *, gfc_loopinfo *);
  72
  73 /* Marks the start of a scalarized expression, and declares loop variables.  */
  74 void gfc_start_scalarized_body (gfc_loopinfo *, stmtblock_t *);
  75 /* Generates the actual loops for a scalarized expression.  */
  76 void gfc_trans_scalarizing_loops (gfc_loopinfo *, stmtblock_t *);
  77 /* Mark the end of the main loop body and the start of the copying loop.  */
  78 void gfc_trans_scalarized_loop_boundary (gfc_loopinfo *, stmtblock_t *);
  79 /* Initialize the scalarization loop parameters.  */
  80 void gfc_conv_loop_setup (gfc_loopinfo *);
  81 /* Resolve array assignment dependencies.  */
  82 void gfc_conv_resolve_dependencies (gfc_loopinfo *, gfc_ss *, gfc_ss *);
  83 /* Build a null array descriptor constructor.  */
  84 tree gfc_build_null_descriptor (tree);
  85
  86 /* Get a single array element.  */
  87 void gfc_conv_array_ref (gfc_se *, gfc_array_ref *);
  88 /* Translate a reference to a temporary array.  */
  89 void gfc_conv_tmp_array_ref (gfc_se * se);
  90 /* Translate a reference to an array temporary.  */
  91 void gfc_conv_tmp_ref (gfc_se *);
  92
  93 /* Evaluate an array expression.  */
  94 void gfc_conv_expr_descriptor (gfc_se *, gfc_expr *, gfc_ss *);
  95 /* Convert an array for passing as an actual function parameter.  */
  96 void gfc_conv_array_parameter (gfc_se *, gfc_expr *, gfc_ss *, int);
  97 /* Evaluate and transpose a matrix expression.  */
  98 void gfc_conv_array_transpose (gfc_se *, gfc_expr *);
  99
 100 /* These work with both descriptors and descriptorless arrays.  */
 101 tree gfc_conv_array_data (tree);
 102 tree gfc_conv_array_offset (tree);
 103 /* Return either an INT_CST or an expression for that part of the descriptor.  */
 104 tree gfc_conv_array_stride (tree, int);
 105 tree gfc_conv_array_lbound (tree, int);
 106 tree gfc_conv_array_ubound (tree, int);
 107
 108 /* Build expressions for accessing components of an array descriptor.  */
 109 tree gfc_conv_descriptor_data_get (tree);
 110 void gfc_conv_descriptor_data_set (stmtblock_t *, tree, tree);
 111 tree gfc_conv_descriptor_data_addr (tree);
 112 tree gfc_conv_descriptor_offset (tree);
 113 tree gfc_conv_descriptor_dtype (tree);
 114 tree gfc_conv_descriptor_stride (tree, tree);
 115 tree gfc_conv_descriptor_lbound (tree, tree);
 116 tree gfc_conv_descriptor_ubound (tree, tree);
 117
 118 /* Dependency checking for WHERE and FORALL.  */
 119 int gfc_check_dependency (gfc_expr *, gfc_expr *, gfc_expr **, int);
 120
 121 /* Add pre-loop scalarization code for intrinsic functions which require
 122    special handling.  */
 123 void gfc_add_intrinsic_ss_code (gfc_loopinfo *, gfc_ss *);