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 GCC.
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
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
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, 59 Temple Place - Suite 330, Boston, MA
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
);
32 /* Generate function entry code for allocation of compiler allocated array
34 tree
gfc_trans_auto_array_allocation (tree
, gfc_symbol
*, tree
);
35 /* Generate entry and exit code for dummy array parameters. */
36 tree
gfc_trans_dummy_array_bias (gfc_symbol
*, tree
, tree
);
37 /* Generate entry and exit code for g77 calling convention arrays. */
38 tree
gfc_trans_g77_array (gfc_symbol
*, tree
);
39 /* Add initialisation for deferred arrays. */
40 tree
gfc_trans_deferred_array (gfc_symbol
*, tree
);
41 /* Generate an initializer for a static pointer or allocatable array. */
42 void gfc_trans_static_array_pointer (gfc_symbol
*);
44 /* Generate scalarization information for an expression. */
45 gfc_ss
*gfc_walk_expr (gfc_expr
*);
46 /* Walk the arguments of an intrinsic function. */
47 gfc_ss
*gfc_walk_elemental_function_args (gfc_ss
*, gfc_expr
*, gfc_ss_type
);
48 /* Walk an intrinsic function. */
49 gfc_ss
*gfc_walk_intrinsic_function (gfc_ss
*, gfc_expr
*,
52 /* Free the SS assocuated with a loop. */
53 void gfc_cleanup_loop (gfc_loopinfo
*);
54 /* Associate a SS chain with a loop. */
55 void gfc_add_ss_to_loop (gfc_loopinfo
*, gfc_ss
*);
56 /* Mark a SS chain as used in this loop. */
57 void gfc_mark_ss_chain_used (gfc_ss
*, unsigned);
59 /* Calculates the lower bound and stride of array sections. */
60 void gfc_conv_ss_startstride (gfc_loopinfo
*);
62 void gfc_init_loopinfo (gfc_loopinfo
*);
63 void gfc_copy_loopinfo_to_se (gfc_se
*, gfc_loopinfo
*);
65 /* Marks the start of a scalarized expression, and declares loop variables. */
66 void gfc_start_scalarized_body (gfc_loopinfo
*, stmtblock_t
*);
67 /* Generates the actual loops for a scalarized expression. */
68 void gfc_trans_scalarizing_loops (gfc_loopinfo
*, stmtblock_t
*);
69 /* Mark the end of the main loop body and the start of the copying loop. */
70 void gfc_trans_scalarized_loop_boundary (gfc_loopinfo
*, stmtblock_t
*);
71 /* Initialise the scalarization loop parameters. */
72 void gfc_conv_loop_setup (gfc_loopinfo
*);
73 /* Resolve array assignment dependencies. */
74 void gfc_conv_resolve_dependencies (gfc_loopinfo
*, gfc_ss
*, gfc_ss
*);
75 /* Build an null array descriptor constructor. */
76 tree
gfc_build_null_descriptor (tree
);
78 /* Get a single array element. */
79 void gfc_conv_array_ref (gfc_se
*, gfc_array_ref
*);
80 /* Translate a reference to a temporary array. */
81 void gfc_conv_tmp_array_ref (gfc_se
* se
);
82 /* Translate a reference to an array temporary. */
83 void gfc_conv_tmp_ref (gfc_se
*);
85 /* Evaluate an array expression. */
86 void gfc_conv_expr_descriptor (gfc_se
*, gfc_expr
*, gfc_ss
*);
87 /* Convert an array for passing as an actual function parameter. */
88 void gfc_conv_array_parameter (gfc_se
*, gfc_expr
*, gfc_ss
*, int);
90 /* These work with both descriptors and descriptorless arrays. */
91 tree
gfc_conv_array_data (tree
);
92 tree
gfc_conv_array_offset (tree
);
93 /* Return either an INT_CST or an expression for that part of the descriptor. */
94 tree
gfc_conv_array_stride (tree
, int);
95 tree
gfc_conv_array_lbound (tree
, int);
96 tree
gfc_conv_array_ubound (tree
, int);
98 /* The remaining space available for stack variables. */
99 extern unsigned HOST_WIDE_INT gfc_stack_space_left
;
100 /* Returns true if a variable of specified size should go on the stack. */
101 int gfc_can_put_var_on_stack (tree
);
103 /* Build expressions for accessing components of an array descriptor. */
104 tree
gfc_conv_descriptor_data (tree
);
105 tree
gfc_conv_descriptor_offset (tree
);
106 tree
gfc_conv_descriptor_dtype (tree
);
107 tree
gfc_conv_descriptor_stride (tree
, tree
);
108 tree
gfc_conv_descriptor_lbound (tree
, tree
);
109 tree
gfc_conv_descriptor_ubound (tree
, tree
);
111 /* Dependency checking for WHERE and FORALL. */
112 int gfc_check_dependency (gfc_expr
*, gfc_expr
*, gfc_expr
**, int);
113 /* Dependency checking for function calls. */
114 int gfc_check_fncall_dependency (gfc_expr
*, gfc_expr
*);
116 /* Add pre-loop scalarization code for intrinsic functions which require
118 void gfc_add_intrinsic_ss_code (gfc_loopinfo
*, gfc_ss
*);