gcc/fortran/trans-array.h

   1 /* Header for array handling functions
   2    Copyright (C) 2002-2015 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 3, 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 COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 /* Generate code to free an array.  */
  22 tree gfc_array_deallocate (tree, tree, tree, tree, tree, gfc_expr*);
  23
  24 /* Generate code to initialize and allocate an array.  Statements are added to
  25    se, which should contain an expression for the array descriptor.  */
  26 bool gfc_array_allocate (gfc_se *, gfc_expr *, tree, tree, tree, tree,
  27                          tree, tree *, gfc_expr *, tree, bool);
  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 create a temporary array.  */
  34 tree gfc_trans_create_temp_array (stmtblock_t *, stmtblock_t *, gfc_ss *,
  35                                   tree, tree, bool, bool, bool, locus *);
  36
  37 /* Generate function entry code for allocation of compiler allocated array
  38    variables.  */
  39 void gfc_trans_auto_array_allocation (tree, gfc_symbol *, gfc_wrapped_block *);
  40 /* Generate entry and exit code for dummy array parameters.  */
  41 void gfc_trans_dummy_array_bias (gfc_symbol *, tree, gfc_wrapped_block *);
  42 /* Generate entry and exit code for g77 calling convention arrays.  */
  43 void gfc_trans_g77_array (gfc_symbol *, gfc_wrapped_block *);
  44 /* Generate code to deallocate an array, if it is allocated.  */
  45 tree gfc_trans_dealloc_allocated (tree, bool, gfc_expr *);
  46
  47 tree gfc_full_array_size (stmtblock_t *, tree, int);
  48
  49 tree gfc_duplicate_allocatable (tree, tree, tree, int, tree);
  50
  51 tree gfc_copy_allocatable_data (tree dest, tree src, tree type, int rank);
  52
  53 tree gfc_duplicate_allocatable_nocopy (tree, tree, tree, int);
  54
  55 tree gfc_nullify_alloc_comp (gfc_symbol *, tree, int);
  56
  57 tree gfc_deallocate_alloc_comp (gfc_symbol *, tree, int);
  58 tree gfc_deallocate_alloc_comp_no_caf (gfc_symbol *, tree, int);
  59 tree gfc_reassign_alloc_comp_caf (gfc_symbol *, tree, tree);
  60
  61 tree gfc_copy_alloc_comp (gfc_symbol *, tree, tree, int);
  62
  63 tree gfc_copy_only_alloc_comp (gfc_symbol *, tree, tree, int);
  64
  65 tree gfc_alloc_allocatable_for_assignment (gfc_loopinfo*, gfc_expr*, gfc_expr*);
  66
  67 /* Add initialization for deferred arrays.  */
  68 void gfc_trans_deferred_array (gfc_symbol *, gfc_wrapped_block *);
  69 /* Generate an initializer for a static pointer or allocatable array.  */
  70 void gfc_trans_static_array_pointer (gfc_symbol *);
  71
  72 /* Get the procedure interface for a function call.  */
  73 gfc_symbol *gfc_get_proc_ifc_for_expr (gfc_expr *);
  74 /* Generate scalarization information for an expression.  */
  75 gfc_ss *gfc_walk_expr (gfc_expr *);
  76 /* Workhorse for gfc_walk_expr.  */
  77 gfc_ss *gfc_walk_subexpr (gfc_ss *, gfc_expr *);
  78 /* Workhorse for gfc_walk_variable_expr.  */
  79 gfc_ss *gfc_walk_array_ref (gfc_ss *, gfc_expr *, gfc_ref * ref);
  80 /* Walk the arguments of an elemental function.  */
  81 gfc_ss *gfc_walk_elemental_function_args (gfc_ss *, gfc_actual_arglist *,
  82                                           gfc_symbol *, gfc_ss_type);
  83 /* Walk an intrinsic function.  */
  84 gfc_ss *gfc_walk_intrinsic_function (gfc_ss *, gfc_expr *,
  85                                      gfc_intrinsic_sym *);
  86 /* Reverse the order of an SS chain.  */
  87 gfc_ss *gfc_reverse_ss (gfc_ss *);
  88
  89 /* Free the SS associated with a loop.  */
  90 void gfc_cleanup_loop (gfc_loopinfo *);
  91 /* Associate a SS chain with a loop.  */
  92 void gfc_add_ss_to_loop (gfc_loopinfo *, gfc_ss *);
  93 /* Mark a SS chain as used in this loop.  */
  94 void gfc_mark_ss_chain_used (gfc_ss *, unsigned);
  95 /* Free a gfc_ss chain.  */
  96 void gfc_free_ss_chain (gfc_ss *);
  97 /* Free a single gfc_ss element.  */
  98 void gfc_free_ss (gfc_ss *);
  99 /* Allocate a new array type ss.  */
 100 gfc_ss *gfc_get_array_ss (gfc_ss *, gfc_expr *, int, gfc_ss_type);
 101 /* Allocate a new temporary type ss.  */
 102 gfc_ss *gfc_get_temp_ss (tree, tree, int);
 103 /* Allocate a new scalar type ss.  */
 104 gfc_ss *gfc_get_scalar_ss (gfc_ss *, gfc_expr *);
 105
 106 bool gfc_scalar_elemental_arg_saved_as_reference (gfc_ss_info *);
 107
 108 /* Calculates the lower bound and stride of array sections.  */
 109 void gfc_conv_ss_startstride (gfc_loopinfo *);
 110
 111 void gfc_init_loopinfo (gfc_loopinfo *);
 112 void gfc_copy_loopinfo_to_se (gfc_se *, gfc_loopinfo *);
 113
 114 /* Marks the start of a scalarized expression, and declares loop variables.  */
 115 void gfc_start_scalarized_body (gfc_loopinfo *, stmtblock_t *);
 116 /* Generates one actual loop for a scalarized expression.  */
 117 void  gfc_trans_scalarized_loop_end (gfc_loopinfo *, int, stmtblock_t *);
 118 /* Generates the actual loops for a scalarized expression.  */
 119 void gfc_trans_scalarizing_loops (gfc_loopinfo *, stmtblock_t *);
 120 /* Mark the end of the main loop body and the start of the copying loop.  */
 121 void gfc_trans_scalarized_loop_boundary (gfc_loopinfo *, stmtblock_t *);
 122 /* Initialize the scalarization loop parameters.  */
 123 void gfc_conv_loop_setup (gfc_loopinfo *, locus *);
 124 /* Set each array's delta.  */
 125 void gfc_set_delta (gfc_loopinfo *);
 126 /* Resolve array assignment dependencies.  */
 127 void gfc_conv_resolve_dependencies (gfc_loopinfo *, gfc_ss *, gfc_ss *);
 128 /* Build a null array descriptor constructor.  */
 129 tree gfc_build_null_descriptor (tree);
 130
 131 /* Get a single array element.  */
 132 void gfc_conv_array_ref (gfc_se *, gfc_array_ref *, gfc_expr *, locus *);
 133 /* Translate a reference to a temporary array.  */
 134 void gfc_conv_tmp_array_ref (gfc_se * se);
 135 /* Translate a reference to an array temporary.  */
 136 void gfc_conv_tmp_ref (gfc_se *);
 137
 138 /* Evaluate an array expression.  */
 139 void gfc_conv_expr_descriptor (gfc_se *, gfc_expr *);
 140 /* Convert an array for passing as an actual function parameter.  */
 141 void gfc_conv_array_parameter (gfc_se *, gfc_expr *, bool,
 142                                const gfc_symbol *, const char *, tree *);
 143 /* Evaluate and transpose a matrix expression.  */
 144 void gfc_conv_array_transpose (gfc_se *, gfc_expr *);
 145
 146 /* These work with both descriptors and descriptorless arrays.  */
 147 tree gfc_conv_array_data (tree);
 148 tree gfc_conv_array_offset (tree);
 149 /* Return either an INT_CST or an expression for that part of the descriptor.  */
 150 tree gfc_conv_array_stride (tree, int);
 151 tree gfc_conv_array_lbound (tree, int);
 152 tree gfc_conv_array_ubound (tree, int);
 153
 154 /* Set cobounds of an array.  */
 155 void gfc_trans_array_cobounds (tree, stmtblock_t *, const gfc_symbol *);
 156
 157 /* Build expressions for accessing components of an array descriptor.  */
 158 tree gfc_conv_descriptor_data_get (tree);
 159 tree gfc_conv_descriptor_data_addr (tree);
 160 tree gfc_conv_descriptor_offset_get (tree);
 161 tree gfc_conv_descriptor_dtype (tree);
 162 tree gfc_conv_descriptor_rank (tree);
 163 tree gfc_get_descriptor_dimension (tree);
 164 tree gfc_conv_descriptor_stride_get (tree, tree);
 165 tree gfc_conv_descriptor_lbound_get (tree, tree);
 166 tree gfc_conv_descriptor_ubound_get (tree, tree);
 167 tree gfc_conv_descriptor_token (tree);
 168
 169 void gfc_conv_descriptor_data_set (stmtblock_t *, tree, tree);
 170 void gfc_conv_descriptor_offset_set (stmtblock_t *, tree, tree);
 171 void gfc_conv_descriptor_stride_set (stmtblock_t *, tree, tree, tree);
 172 void gfc_conv_descriptor_lbound_set (stmtblock_t *, tree, tree, tree);
 173 void gfc_conv_descriptor_ubound_set (stmtblock_t *, tree, tree, tree);
 174
 175 /* Shift lower bound of descriptor, updating ubound and offset.  */
 176 void gfc_conv_shift_descriptor_lbound (stmtblock_t*, tree, int, tree);
 177
 178 /* Add pre-loop scalarization code for intrinsic functions which require
 179    special handling.  */
 180 void gfc_add_intrinsic_ss_code (gfc_loopinfo *, gfc_ss *);
 181
 182 /* Functions for constant array constructor processing.  */
 183 unsigned HOST_WIDE_INT gfc_constant_array_constructor_p (gfc_constructor_base);
 184 tree gfc_build_constant_array_constructor (gfc_expr *, tree);
 185
 186 /* Copy a string from src to dest.  */
 187 void gfc_trans_string_copy (stmtblock_t *, tree, tree, int, tree, tree, int);
 188
 189 /* Calculate extent / size of an array.  */
 190 tree gfc_conv_array_extent_dim (tree, tree, tree*);
 191 tree gfc_conv_descriptor_size (tree, int);
 192 tree gfc_conv_descriptor_cosize (tree, int, int);