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/* Header for array handling functions
Copyright (C) 2002-2021 Free Software Foundation, Inc.
Contributed by Paul Brook
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
/* Generate code to initialize and allocate an array. Statements are added to
se, which should contain an expression for the array descriptor. */
bool gfc_array_allocate (gfc_se *, gfc_expr *, tree, tree, tree, tree,
tree, tree *, gfc_expr *, tree, bool);
/* Allow the bounds of a loop to be set from a callee's array spec. */
void gfc_set_loop_bounds_from_array_spec (gfc_interface_mapping *,
gfc_se *, gfc_array_spec *);
/* Generate code to create a temporary array. */
tree gfc_trans_create_temp_array (stmtblock_t *, stmtblock_t *, gfc_ss *,
tree, tree, bool, bool, bool, locus *);
/* Generate function entry code for allocation of compiler allocated array
variables. */
void gfc_trans_auto_array_allocation (tree, gfc_symbol *, gfc_wrapped_block *);
/* Generate entry and exit code for dummy array parameters. */
void gfc_trans_dummy_array_bias (gfc_symbol *, tree, gfc_wrapped_block *);
/* Generate entry and exit code for g77 calling convention arrays. */
void gfc_trans_g77_array (gfc_symbol *, gfc_wrapped_block *);
tree gfc_full_array_size (stmtblock_t *, tree, int);
tree gfc_duplicate_allocatable (tree, tree, tree, int, tree);
tree gfc_copy_allocatable_data (tree dest, tree src, tree type, int rank);
tree gfc_duplicate_allocatable_nocopy (tree, tree, tree, int);
bool gfc_caf_is_dealloc_only (int);
tree gfc_nullify_alloc_comp (gfc_symbol *, tree, int, int cm = 0);
tree gfc_deallocate_alloc_comp (gfc_symbol *, tree, int, int cm = 0);
tree gfc_bcast_alloc_comp (gfc_symbol *, gfc_expr *, int, tree,
tree, tree, tree);
tree gfc_deallocate_alloc_comp_no_caf (gfc_symbol *, tree, int);
tree gfc_reassign_alloc_comp_caf (gfc_symbol *, tree, tree);
tree gfc_copy_alloc_comp (gfc_symbol *, tree, tree, int, int);
tree gfc_copy_only_alloc_comp (gfc_symbol *, tree, tree, int);
tree gfc_allocate_pdt_comp (gfc_symbol *, tree, int, gfc_actual_arglist *);
tree gfc_deallocate_pdt_comp (gfc_symbol *, tree, int);
tree gfc_check_pdt_dummy (gfc_symbol *, tree, int, gfc_actual_arglist *);
tree gfc_alloc_allocatable_for_assignment (gfc_loopinfo*, gfc_expr*, gfc_expr*);
/* Add initialization for deferred arrays. */
void gfc_trans_deferred_array (gfc_symbol *, gfc_wrapped_block *);
/* Generate an initializer for a static pointer or allocatable array. */
void gfc_trans_static_array_pointer (gfc_symbol *);
/* Get the procedure interface for a function call. */
gfc_symbol *gfc_get_proc_ifc_for_expr (gfc_expr *);
/* Generate scalarization information for an expression. */
gfc_ss *gfc_walk_expr (gfc_expr *);
/* Workhorse for gfc_walk_expr. */
gfc_ss *gfc_walk_subexpr (gfc_ss *, gfc_expr *);
/* Workhorse for gfc_walk_variable_expr. */
gfc_ss *gfc_walk_array_ref (gfc_ss *, gfc_expr *, gfc_ref * ref);
/* Walk the arguments of an elemental function. */
gfc_ss *gfc_walk_elemental_function_args (gfc_ss *, gfc_actual_arglist *,
gfc_symbol *, gfc_ss_type);
/* Walk an intrinsic function. */
gfc_ss *gfc_walk_intrinsic_function (gfc_ss *, gfc_expr *,
gfc_intrinsic_sym *);
/* Reverse the order of an SS chain. */
gfc_ss *gfc_reverse_ss (gfc_ss *);
/* Free the SS associated with a loop. */
void gfc_cleanup_loop (gfc_loopinfo *);
/* Associate a SS chain with a loop. */
void gfc_add_ss_to_loop (gfc_loopinfo *, gfc_ss *);
/* Mark a SS chain as used in this loop. */
void gfc_mark_ss_chain_used (gfc_ss *, unsigned);
/* Free a gfc_ss chain. */
void gfc_free_ss_chain (gfc_ss *);
/* Free a single gfc_ss element. */
void gfc_free_ss (gfc_ss *);
/* Allocate a new array type ss. */
gfc_ss *gfc_get_array_ss (gfc_ss *, gfc_expr *, int, gfc_ss_type);
/* Allocate a new temporary type ss. */
gfc_ss *gfc_get_temp_ss (tree, tree, int);
/* Allocate a new scalar type ss. */
gfc_ss *gfc_get_scalar_ss (gfc_ss *, gfc_expr *);
bool gfc_scalar_elemental_arg_saved_as_reference (gfc_ss_info *);
/* Calculates the lower bound and stride of array sections. */
void gfc_conv_ss_startstride (gfc_loopinfo *);
void gfc_init_loopinfo (gfc_loopinfo *);
void gfc_copy_loopinfo_to_se (gfc_se *, gfc_loopinfo *);
/* Marks the start of a scalarized expression, and declares loop variables. */
void gfc_start_scalarized_body (gfc_loopinfo *, stmtblock_t *);
/* Generates one actual loop for a scalarized expression. */
void gfc_trans_scalarized_loop_end (gfc_loopinfo *, int, stmtblock_t *);
/* Generates the actual loops for a scalarized expression. */
void gfc_trans_scalarizing_loops (gfc_loopinfo *, stmtblock_t *);
/* Mark the end of the main loop body and the start of the copying loop. */
void gfc_trans_scalarized_loop_boundary (gfc_loopinfo *, stmtblock_t *);
/* Initialize the scalarization loop parameters. */
void gfc_conv_loop_setup (gfc_loopinfo *, locus *);
/* Set each array's delta. */
void gfc_set_delta (gfc_loopinfo *);
/* Resolve array assignment dependencies. */
void gfc_conv_resolve_dependencies (gfc_loopinfo *, gfc_ss *, gfc_ss *);
/* Build a null array descriptor constructor. */
tree gfc_build_null_descriptor (tree);
/* Get a single array element. */
void gfc_conv_array_ref (gfc_se *, gfc_array_ref *, gfc_expr *, locus *);
/* Translate a reference to a temporary array. */
void gfc_conv_tmp_array_ref (gfc_se * se);
/* Translate a reference to an array temporary. */
void gfc_conv_tmp_ref (gfc_se *);
/* Calculate the overall offset, including subreferences. */
void gfc_get_dataptr_offset (stmtblock_t*, tree, tree, tree, bool, gfc_expr*);
/* Obtain the span of an array. */
tree gfc_get_array_span (tree, gfc_expr *);
/* Evaluate an array expression. */
void gfc_conv_expr_descriptor (gfc_se *, gfc_expr *);
/* Convert an array for passing as an actual function parameter. */
void gfc_conv_array_parameter (gfc_se *, gfc_expr *, bool,
const gfc_symbol *, const char *, tree *);
/* Evaluate and transpose a matrix expression. */
void gfc_conv_array_transpose (gfc_se *, gfc_expr *);
/* These work with both descriptors and descriptorless arrays. */
tree gfc_conv_array_data (tree);
tree gfc_conv_array_offset (tree);
/* Return either an INT_CST or an expression for that part of the descriptor. */
tree gfc_conv_array_stride (tree, int);
tree gfc_conv_array_lbound (tree, int);
tree gfc_conv_array_ubound (tree, int);
/* Set cobounds of an array. */
void gfc_trans_array_cobounds (tree, stmtblock_t *, const gfc_symbol *);
/* Build expressions for accessing components of an array descriptor. */
void gfc_get_descriptor_offsets_for_info (const_tree, tree *, tree *, tree *, tree *,
tree *, tree *, tree *, tree *);
tree gfc_conv_descriptor_data_get (tree);
tree gfc_conv_descriptor_data_addr (tree);
tree gfc_conv_descriptor_offset_get (tree);
tree gfc_conv_descriptor_span_get (tree);
tree gfc_conv_descriptor_dtype (tree);
tree gfc_conv_descriptor_rank (tree);
tree gfc_conv_descriptor_elem_len (tree);
tree gfc_conv_descriptor_attribute (tree);
tree gfc_get_descriptor_dimension (tree);
tree gfc_conv_descriptor_stride_get (tree, tree);
tree gfc_conv_descriptor_lbound_get (tree, tree);
tree gfc_conv_descriptor_ubound_get (tree, tree);
tree gfc_conv_descriptor_token (tree);
void gfc_conv_descriptor_data_set (stmtblock_t *, tree, tree);
void gfc_conv_descriptor_offset_set (stmtblock_t *, tree, tree);
void gfc_conv_descriptor_span_set (stmtblock_t *, tree, tree);
void gfc_conv_descriptor_stride_set (stmtblock_t *, tree, tree, tree);
void gfc_conv_descriptor_lbound_set (stmtblock_t *, tree, tree, tree);
void gfc_conv_descriptor_ubound_set (stmtblock_t *, tree, tree, tree);
/* Shift lower bound of descriptor, updating ubound and offset. */
void gfc_conv_shift_descriptor_lbound (stmtblock_t*, tree, int, tree);
/* Add pre-loop scalarization code for intrinsic functions which require
special handling. */
void gfc_add_intrinsic_ss_code (gfc_loopinfo *, gfc_ss *);
/* Functions for constant array constructor processing. */
unsigned HOST_WIDE_INT gfc_constant_array_constructor_p (gfc_constructor_base);
tree gfc_build_constant_array_constructor (gfc_expr *, tree);
/* Copy a string from src to dest. */
void gfc_trans_string_copy (stmtblock_t *, tree, tree, int, tree, tree, int);
/* Calculate extent / size of an array. */
tree gfc_conv_array_extent_dim (tree, tree, tree*);
tree gfc_conv_descriptor_size (tree, int);
tree gfc_conv_descriptor_cosize (tree, int, int);
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