1 /* Header for array handling functions
2 Copyright (C) 2002, 2003 Free Software Foundation, Inc.
3 Contributed by Paul Brook
5 This file is part of GNU G95.
7 GNU G95 is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU G95 is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU G95; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
22 /* Generate code to free an array. */
23 tree gfc_array_deallocate (tree);
25 /* Generate code to initialise 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);
29 /* Generate code to allocate a temporary array. */
30 tree gfc_trans_allocate_temp_array (gfc_loopinfo *, gfc_ss_info *, tree,
33 /* Generate function entry code for allocation of compiler allocated array
35 tree gfc_trans_auto_array_allocation (tree, gfc_symbol *, tree);
36 /* Generate entry and exit code for dummy array parameters. */
37 tree gfc_trans_dummy_array_bias (gfc_symbol *, tree, tree);
38 /* Generate entry and exit code for g77 calling convention arrays. */
39 tree gfc_trans_g77_array (gfc_symbol *, tree);
40 /* Add initialisation for deferred arrays. */
41 tree gfc_trans_deferred_array (gfc_symbol *, tree);
42 /* Generate an initializer for a static pointer or allocatable array. */
43 void gfc_trans_static_array_pointer (gfc_symbol *);
45 /* Generate scalarization information for an expression. */
46 gfc_ss *gfc_walk_expr (gfc_expr *);
47 /* Walk the arguments of an intrinsic function. */
48 gfc_ss *gfc_walk_elemental_function_args (gfc_ss *, gfc_expr *, gfc_ss_type);
49 /* Walk an intrinsic function. */
50 gfc_ss *gfc_walk_intrinsic_function (gfc_ss *, gfc_expr *,
53 /* Free the SS assocuated with a loop. */
54 void gfc_cleanup_loop (gfc_loopinfo *);
55 /* Associate a SS chain with a loop. */
56 void gfc_add_ss_to_loop (gfc_loopinfo *, gfc_ss *);
57 /* Mark a SS chain as used in this loop. */
58 void gfc_mark_ss_chain_used (gfc_ss *, unsigned);
60 /* Calculates the lower bound and stride of array sections. */
61 void gfc_conv_ss_startstride (gfc_loopinfo *);
63 void gfc_init_loopinfo (gfc_loopinfo *);
64 void gfc_copy_loopinfo_to_se (gfc_se *, gfc_loopinfo *);
66 /* Marks the start of a scalarized expression, and declares loop variables. */
67 void gfc_start_scalarized_body (gfc_loopinfo *, stmtblock_t *);
68 /* Generates the actual loops for a scalarized expression. */
69 void gfc_trans_scalarizing_loops (gfc_loopinfo *, stmtblock_t *);
70 /* Mark the end of the main loop body and the start of the copying loop. */
71 void gfc_trans_scalarized_loop_boundary (gfc_loopinfo *, stmtblock_t *);
72 /* Initialise the scalarization loop parameters. */
73 void gfc_conv_loop_setup (gfc_loopinfo *);
74 /* Resolve array assignment dependencies. */
75 void gfc_conv_resolve_dependencies (gfc_loopinfo *, gfc_ss *, gfc_ss *);
77 /* Get a single array element. */
78 void gfc_conv_array_ref (gfc_se *, gfc_array_ref *);
79 /* Translate a reference to a temporary array. */
80 void gfc_conv_tmp_array_ref (gfc_se * se);
81 /* Translate a reference to an array temporary. */
82 void gfc_conv_tmp_ref (gfc_se *);
84 /* Evaluate an array expression. */
85 void gfc_conv_expr_descriptor (gfc_se *, gfc_expr *, gfc_ss *);
86 /* Convert an array for passing as an actual function parameter. */
87 void gfc_conv_array_parameter (gfc_se *, gfc_expr *, gfc_ss *, int);
89 /* These work with both descriptors and descriptorless arrays. */
90 tree gfc_conv_array_data (tree);
91 tree gfc_conv_array_offset (tree);
92 /* Return either an INT_CST or an expression for that part of the descriptor. */
93 tree gfc_conv_array_stride (tree, int);
94 tree gfc_conv_array_lbound (tree, int);
95 tree gfc_conv_array_ubound (tree, int);
97 /* The remaining space available for stack variables. */
98 extern unsigned HOST_WIDE_INT gfc_stack_space_left;
99 /* Returns true if a variable of specified size should go on the stack. */
100 int gfc_can_put_var_on_stack (tree);
102 /* Build expressions for accessing components of an array descriptor. */
103 tree gfc_conv_descriptor_data (tree);
104 tree gfc_conv_descriptor_offset (tree);
105 tree gfc_conv_descriptor_dtype (tree);
106 tree gfc_conv_descriptor_stride (tree, tree);
107 tree gfc_conv_descriptor_lbound (tree, tree);
108 tree gfc_conv_descriptor_ubound (tree, tree);
110 /* Dependency checking for WHERE and FORALL. */
111 int gfc_check_dependency (gfc_expr *, gfc_expr *, gfc_expr **, int);
112 /* Dependency checking for function calls. */
113 int gfc_check_fncall_dependency (gfc_expr *, gfc_expr *);
115 /* Add pre-loop scalarization code for intrinsic functions which require
117 void gfc_add_intrinsic_ss_code (gfc_loopinfo *, gfc_ss *);