| /* IO Code translation/library interface |
| Copyright (C) 2002, 2003, 2004, 2005 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 2, 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 COPYING. If not, write to the Free |
| Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
| 02111-1307, USA. */ |
| |
| |
| #include "config.h" |
| #include "system.h" |
| #include "coretypes.h" |
| #include "tree.h" |
| #include "tree-gimple.h" |
| #include "ggc.h" |
| #include "toplev.h" |
| #include "real.h" |
| #include "gfortran.h" |
| #include "trans.h" |
| #include "trans-stmt.h" |
| #include "trans-array.h" |
| #include "trans-types.h" |
| #include "trans-const.h" |
| |
| |
| /* Members of the ioparm structure. */ |
| |
| static GTY(()) tree ioparm_unit; |
| static GTY(()) tree ioparm_err; |
| static GTY(()) tree ioparm_end; |
| static GTY(()) tree ioparm_eor; |
| static GTY(()) tree ioparm_list_format; |
| static GTY(()) tree ioparm_library_return; |
| static GTY(()) tree ioparm_iostat; |
| static GTY(()) tree ioparm_exist; |
| static GTY(()) tree ioparm_opened; |
| static GTY(()) tree ioparm_number; |
| static GTY(()) tree ioparm_named; |
| static GTY(()) tree ioparm_rec; |
| static GTY(()) tree ioparm_nextrec; |
| static GTY(()) tree ioparm_size; |
| static GTY(()) tree ioparm_recl_in; |
| static GTY(()) tree ioparm_recl_out; |
| static GTY(()) tree ioparm_iolength; |
| static GTY(()) tree ioparm_file; |
| static GTY(()) tree ioparm_file_len; |
| static GTY(()) tree ioparm_status; |
| static GTY(()) tree ioparm_status_len; |
| static GTY(()) tree ioparm_access; |
| static GTY(()) tree ioparm_access_len; |
| static GTY(()) tree ioparm_form; |
| static GTY(()) tree ioparm_form_len; |
| static GTY(()) tree ioparm_blank; |
| static GTY(()) tree ioparm_blank_len; |
| static GTY(()) tree ioparm_position; |
| static GTY(()) tree ioparm_position_len; |
| static GTY(()) tree ioparm_action; |
| static GTY(()) tree ioparm_action_len; |
| static GTY(()) tree ioparm_delim; |
| static GTY(()) tree ioparm_delim_len; |
| static GTY(()) tree ioparm_pad; |
| static GTY(()) tree ioparm_pad_len; |
| static GTY(()) tree ioparm_format; |
| static GTY(()) tree ioparm_format_len; |
| static GTY(()) tree ioparm_advance; |
| static GTY(()) tree ioparm_advance_len; |
| static GTY(()) tree ioparm_name; |
| static GTY(()) tree ioparm_name_len; |
| static GTY(()) tree ioparm_internal_unit; |
| static GTY(()) tree ioparm_internal_unit_len; |
| static GTY(()) tree ioparm_sequential; |
| static GTY(()) tree ioparm_sequential_len; |
| static GTY(()) tree ioparm_direct; |
| static GTY(()) tree ioparm_direct_len; |
| static GTY(()) tree ioparm_formatted; |
| static GTY(()) tree ioparm_formatted_len; |
| static GTY(()) tree ioparm_unformatted; |
| static GTY(()) tree ioparm_unformatted_len; |
| static GTY(()) tree ioparm_read; |
| static GTY(()) tree ioparm_read_len; |
| static GTY(()) tree ioparm_write; |
| static GTY(()) tree ioparm_write_len; |
| static GTY(()) tree ioparm_readwrite; |
| static GTY(()) tree ioparm_readwrite_len; |
| static GTY(()) tree ioparm_namelist_name; |
| static GTY(()) tree ioparm_namelist_name_len; |
| static GTY(()) tree ioparm_namelist_read_mode; |
| |
| /* The global I/O variables */ |
| |
| static GTY(()) tree ioparm_var; |
| static GTY(()) tree locus_file; |
| static GTY(()) tree locus_line; |
| |
| |
| /* Library I/O subroutines */ |
| |
| static GTY(()) tree iocall_read; |
| static GTY(()) tree iocall_read_done; |
| static GTY(()) tree iocall_write; |
| static GTY(()) tree iocall_write_done; |
| static GTY(()) tree iocall_x_integer; |
| static GTY(()) tree iocall_x_logical; |
| static GTY(()) tree iocall_x_character; |
| static GTY(()) tree iocall_x_real; |
| static GTY(()) tree iocall_x_complex; |
| static GTY(()) tree iocall_open; |
| static GTY(()) tree iocall_close; |
| static GTY(()) tree iocall_inquire; |
| static GTY(()) tree iocall_iolength; |
| static GTY(()) tree iocall_iolength_done; |
| static GTY(()) tree iocall_rewind; |
| static GTY(()) tree iocall_backspace; |
| static GTY(()) tree iocall_endfile; |
| static GTY(()) tree iocall_set_nml_val; |
| static GTY(()) tree iocall_set_nml_val_dim; |
| |
| /* Variable for keeping track of what the last data transfer statement |
| was. Used for deciding which subroutine to call when the data |
| transfer is complete. */ |
| static enum { READ, WRITE, IOLENGTH } last_dt; |
| |
| #define ADD_FIELD(name, type) \ |
| ioparm_ ## name = gfc_add_field_to_struct \ |
| (&(TYPE_FIELDS (ioparm_type)), ioparm_type, \ |
| get_identifier (stringize(name)), type) |
| |
| #define ADD_STRING(name) \ |
| ioparm_ ## name = gfc_add_field_to_struct \ |
| (&(TYPE_FIELDS (ioparm_type)), ioparm_type, \ |
| get_identifier (stringize(name)), pchar_type_node); \ |
| ioparm_ ## name ## _len = gfc_add_field_to_struct \ |
| (&(TYPE_FIELDS (ioparm_type)), ioparm_type, \ |
| get_identifier (stringize(name) "_len"), gfc_charlen_type_node) |
| |
| |
| /* Create function decls for IO library functions. */ |
| |
| void |
| gfc_build_io_library_fndecls (void) |
| { |
| tree gfc_int4_type_node; |
| tree gfc_pint4_type_node; |
| tree ioparm_type; |
| |
| gfc_int4_type_node = gfc_get_int_type (4); |
| gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
| |
| /* Build the st_parameter structure. Information associated with I/O |
| calls are transferred here. This must match the one defined in the |
| library exactly. */ |
| |
| ioparm_type = make_node (RECORD_TYPE); |
| TYPE_NAME (ioparm_type) = get_identifier ("_gfc_ioparm"); |
| |
| ADD_FIELD (unit, gfc_int4_type_node); |
| ADD_FIELD (err, gfc_int4_type_node); |
| ADD_FIELD (end, gfc_int4_type_node); |
| ADD_FIELD (eor, gfc_int4_type_node); |
| ADD_FIELD (list_format, gfc_int4_type_node); |
| ADD_FIELD (library_return, gfc_int4_type_node); |
| |
| ADD_FIELD (iostat, gfc_pint4_type_node); |
| ADD_FIELD (exist, gfc_pint4_type_node); |
| ADD_FIELD (opened, gfc_pint4_type_node); |
| ADD_FIELD (number, gfc_pint4_type_node); |
| ADD_FIELD (named, gfc_pint4_type_node); |
| ADD_FIELD (rec, gfc_int4_type_node); |
| ADD_FIELD (nextrec, gfc_pint4_type_node); |
| ADD_FIELD (size, gfc_pint4_type_node); |
| |
| ADD_FIELD (recl_in, gfc_int4_type_node); |
| ADD_FIELD (recl_out, gfc_pint4_type_node); |
| |
| ADD_FIELD (iolength, gfc_pint4_type_node); |
| |
| ADD_STRING (file); |
| ADD_STRING (status); |
| |
| ADD_STRING (access); |
| ADD_STRING (form); |
| ADD_STRING (blank); |
| ADD_STRING (position); |
| ADD_STRING (action); |
| ADD_STRING (delim); |
| ADD_STRING (pad); |
| ADD_STRING (format); |
| ADD_STRING (advance); |
| ADD_STRING (name); |
| ADD_STRING (internal_unit); |
| ADD_STRING (sequential); |
| |
| ADD_STRING (direct); |
| ADD_STRING (formatted); |
| ADD_STRING (unformatted); |
| ADD_STRING (read); |
| ADD_STRING (write); |
| ADD_STRING (readwrite); |
| |
| ADD_STRING (namelist_name); |
| ADD_FIELD (namelist_read_mode, gfc_int4_type_node); |
| |
| gfc_finish_type (ioparm_type); |
| |
| ioparm_var = build_decl (VAR_DECL, get_identifier (PREFIX("ioparm")), |
| ioparm_type); |
| DECL_EXTERNAL (ioparm_var) = 1; |
| TREE_PUBLIC (ioparm_var) = 1; |
| |
| locus_line = build_decl (VAR_DECL, get_identifier (PREFIX("line")), |
| gfc_int4_type_node); |
| DECL_EXTERNAL (locus_line) = 1; |
| TREE_PUBLIC (locus_line) = 1; |
| |
| locus_file = build_decl (VAR_DECL, get_identifier (PREFIX("filename")), |
| pchar_type_node); |
| DECL_EXTERNAL (locus_file) = 1; |
| TREE_PUBLIC (locus_file) = 1; |
| |
| /* Define the transfer functions. */ |
| |
| iocall_x_integer = |
| gfc_build_library_function_decl (get_identifier |
| (PREFIX("transfer_integer")), |
| void_type_node, 2, pvoid_type_node, |
| gfc_int4_type_node); |
| |
| iocall_x_logical = |
| gfc_build_library_function_decl (get_identifier |
| (PREFIX("transfer_logical")), |
| void_type_node, 2, pvoid_type_node, |
| gfc_int4_type_node); |
| |
| iocall_x_character = |
| gfc_build_library_function_decl (get_identifier |
| (PREFIX("transfer_character")), |
| void_type_node, 2, pvoid_type_node, |
| gfc_int4_type_node); |
| |
| iocall_x_real = |
| gfc_build_library_function_decl (get_identifier (PREFIX("transfer_real")), |
| void_type_node, 2, |
| pvoid_type_node, gfc_int4_type_node); |
| |
| iocall_x_complex = |
| gfc_build_library_function_decl (get_identifier |
| (PREFIX("transfer_complex")), |
| void_type_node, 2, pvoid_type_node, |
| gfc_int4_type_node); |
| |
| /* Library entry points */ |
| |
| iocall_read = |
| gfc_build_library_function_decl (get_identifier (PREFIX("st_read")), |
| void_type_node, 0); |
| |
| iocall_write = |
| gfc_build_library_function_decl (get_identifier (PREFIX("st_write")), |
| void_type_node, 0); |
| iocall_open = |
| gfc_build_library_function_decl (get_identifier (PREFIX("st_open")), |
| void_type_node, 0); |
| |
| iocall_close = |
| gfc_build_library_function_decl (get_identifier (PREFIX("st_close")), |
| void_type_node, 0); |
| |
| iocall_inquire = |
| gfc_build_library_function_decl (get_identifier (PREFIX("st_inquire")), |
| gfc_int4_type_node, 0); |
| |
| iocall_iolength = |
| gfc_build_library_function_decl(get_identifier (PREFIX("st_iolength")), |
| void_type_node, 0); |
| |
| iocall_rewind = |
| gfc_build_library_function_decl (get_identifier (PREFIX("st_rewind")), |
| gfc_int4_type_node, 0); |
| |
| iocall_backspace = |
| gfc_build_library_function_decl (get_identifier (PREFIX("st_backspace")), |
| gfc_int4_type_node, 0); |
| |
| iocall_endfile = |
| gfc_build_library_function_decl (get_identifier (PREFIX("st_endfile")), |
| gfc_int4_type_node, 0); |
| /* Library helpers */ |
| |
| iocall_read_done = |
| gfc_build_library_function_decl (get_identifier (PREFIX("st_read_done")), |
| gfc_int4_type_node, 0); |
| |
| iocall_write_done = |
| gfc_build_library_function_decl (get_identifier (PREFIX("st_write_done")), |
| gfc_int4_type_node, 0); |
| |
| iocall_iolength_done = |
| gfc_build_library_function_decl (get_identifier (PREFIX("st_iolength_done")), |
| gfc_int4_type_node, 0); |
| |
| |
| iocall_set_nml_val = |
| gfc_build_library_function_decl (get_identifier (PREFIX("st_set_nml_var")), |
| void_type_node, 5, |
| pvoid_type_node, pvoid_type_node, |
| gfc_int4_type_node, gfc_charlen_type_node, |
| gfc_int4_type_node); |
| |
| iocall_set_nml_val_dim = |
| gfc_build_library_function_decl (get_identifier (PREFIX("st_set_nml_var_dim")), |
| void_type_node, 4, |
| gfc_int4_type_node, gfc_int4_type_node, |
| gfc_int4_type_node, gfc_int4_type_node); |
| } |
| |
| |
| /* Generate code to store an non-string I/O parameter into the |
| ioparm structure. This is a pass by value. */ |
| |
| static void |
| set_parameter_value (stmtblock_t * block, tree var, gfc_expr * e) |
| { |
| gfc_se se; |
| tree tmp; |
| |
| gfc_init_se (&se, NULL); |
| gfc_conv_expr_type (&se, e, TREE_TYPE (var)); |
| gfc_add_block_to_block (block, &se.pre); |
| |
| tmp = build3 (COMPONENT_REF, TREE_TYPE (var), ioparm_var, var, NULL_TREE); |
| gfc_add_modify_expr (block, tmp, se.expr); |
| } |
| |
| |
| /* Generate code to store an non-string I/O parameter into the |
| ioparm structure. This is pass by reference. */ |
| |
| static void |
| set_parameter_ref (stmtblock_t * block, tree var, gfc_expr * e) |
| { |
| gfc_se se; |
| tree tmp; |
| |
| gfc_init_se (&se, NULL); |
| se.want_pointer = 1; |
| |
| gfc_conv_expr_type (&se, e, TREE_TYPE (var)); |
| gfc_add_block_to_block (block, &se.pre); |
| |
| tmp = build3 (COMPONENT_REF, TREE_TYPE (var), ioparm_var, var, NULL_TREE); |
| gfc_add_modify_expr (block, tmp, se.expr); |
| } |
| |
| |
| /* Generate code to store a string and its length into the |
| ioparm structure. */ |
| |
| static void |
| set_string (stmtblock_t * block, stmtblock_t * postblock, tree var, |
| tree var_len, gfc_expr * e) |
| { |
| gfc_se se; |
| tree tmp; |
| tree msg; |
| tree io; |
| tree len; |
| |
| gfc_init_se (&se, NULL); |
| |
| io = build3 (COMPONENT_REF, TREE_TYPE (var), ioparm_var, var, NULL_TREE); |
| len = build3 (COMPONENT_REF, TREE_TYPE (var_len), ioparm_var, var_len, |
| NULL_TREE); |
| |
| /* Integer variable assigned a format label. */ |
| if (e->ts.type == BT_INTEGER && e->symtree->n.sym->attr.assign == 1) |
| { |
| gfc_conv_label_variable (&se, e); |
| msg = |
| gfc_build_cstring_const ("Assigned label is not a format label"); |
| tmp = GFC_DECL_STRING_LEN (se.expr); |
| tmp = build2 (LE_EXPR, boolean_type_node, |
| tmp, convert (TREE_TYPE (tmp), integer_minus_one_node)); |
| gfc_trans_runtime_check (tmp, msg, &se.pre); |
| gfc_add_modify_expr (&se.pre, io, |
| fold_convert (TREE_TYPE (io), GFC_DECL_ASSIGN_ADDR (se.expr))); |
| gfc_add_modify_expr (&se.pre, len, GFC_DECL_STRING_LEN (se.expr)); |
| } |
| else |
| { |
| gfc_conv_expr (&se, e); |
| gfc_conv_string_parameter (&se); |
| gfc_add_modify_expr (&se.pre, io, fold_convert (TREE_TYPE (io), se.expr)); |
| gfc_add_modify_expr (&se.pre, len, se.string_length); |
| } |
| |
| gfc_add_block_to_block (block, &se.pre); |
| gfc_add_block_to_block (postblock, &se.post); |
| |
| } |
| |
| |
| /* Set a member of the ioparm structure to one. */ |
| static void |
| set_flag (stmtblock_t *block, tree var) |
| { |
| tree tmp, type = TREE_TYPE (var); |
| |
| tmp = build3 (COMPONENT_REF, type, ioparm_var, var, NULL_TREE); |
| gfc_add_modify_expr (block, tmp, convert (type, integer_one_node)); |
| } |
| |
| |
| /* Add a case to a IO-result switch. */ |
| |
| static void |
| add_case (int label_value, gfc_st_label * label, stmtblock_t * body) |
| { |
| tree tmp, value; |
| |
| if (label == NULL) |
| return; /* No label, no case */ |
| |
| value = build_int_cst (NULL_TREE, label_value); |
| |
| /* Make a backend label for this case. */ |
| tmp = gfc_build_label_decl (NULL_TREE); |
| |
| /* And the case itself. */ |
| tmp = build3_v (CASE_LABEL_EXPR, value, NULL_TREE, tmp); |
| gfc_add_expr_to_block (body, tmp); |
| |
| /* Jump to the label. */ |
| tmp = build1_v (GOTO_EXPR, gfc_get_label_decl (label)); |
| gfc_add_expr_to_block (body, tmp); |
| } |
| |
| |
| /* Generate a switch statement that branches to the correct I/O |
| result label. The last statement of an I/O call stores the |
| result into a variable because there is often cleanup that |
| must be done before the switch, so a temporary would have to |
| be created anyway. */ |
| |
| static void |
| io_result (stmtblock_t * block, gfc_st_label * err_label, |
| gfc_st_label * end_label, gfc_st_label * eor_label) |
| { |
| stmtblock_t body; |
| tree tmp, rc; |
| |
| /* If no labels are specified, ignore the result instead |
| of building an empty switch. */ |
| if (err_label == NULL |
| && end_label == NULL |
| && eor_label == NULL) |
| return; |
| |
| /* Build a switch statement. */ |
| gfc_start_block (&body); |
| |
| /* The label values here must be the same as the values |
| in the library_return enum in the runtime library */ |
| add_case (1, err_label, &body); |
| add_case (2, end_label, &body); |
| add_case (3, eor_label, &body); |
| |
| tmp = gfc_finish_block (&body); |
| |
| rc = build3 (COMPONENT_REF, TREE_TYPE (ioparm_library_return), ioparm_var, |
| ioparm_library_return, NULL_TREE); |
| |
| tmp = build3_v (SWITCH_EXPR, rc, tmp, NULL_TREE); |
| |
| gfc_add_expr_to_block (block, tmp); |
| } |
| |
| |
| /* Store the current file and line number to variables so that if a |
| library call goes awry, we can tell the user where the problem is. */ |
| |
| static void |
| set_error_locus (stmtblock_t * block, locus * where) |
| { |
| gfc_file *f; |
| tree tmp; |
| int line; |
| |
| f = where->lb->file; |
| tmp = gfc_build_cstring_const (f->filename); |
| |
| tmp = gfc_build_addr_expr (pchar_type_node, tmp); |
| gfc_add_modify_expr (block, locus_file, tmp); |
| |
| #ifdef USE_MAPPED_LOCATION |
| line = LOCATION_LINE (where->lb->location); |
| #else |
| line = where->lb->linenum; |
| #endif |
| gfc_add_modify_expr (block, locus_line, build_int_cst (NULL_TREE, line)); |
| } |
| |
| |
| /* Translate an OPEN statement. */ |
| |
| tree |
| gfc_trans_open (gfc_code * code) |
| { |
| stmtblock_t block, post_block; |
| gfc_open *p; |
| tree tmp; |
| |
| gfc_init_block (&block); |
| gfc_init_block (&post_block); |
| |
| set_error_locus (&block, &code->loc); |
| p = code->ext.open; |
| |
| if (p->unit) |
| set_parameter_value (&block, ioparm_unit, p->unit); |
| |
| if (p->file) |
| set_string (&block, &post_block, ioparm_file, ioparm_file_len, p->file); |
| |
| if (p->status) |
| set_string (&block, &post_block, ioparm_status, |
| ioparm_status_len, p->status); |
| |
| if (p->access) |
| set_string (&block, &post_block, ioparm_access, |
| ioparm_access_len, p->access); |
| |
| if (p->form) |
| set_string (&block, &post_block, ioparm_form, ioparm_form_len, p->form); |
| |
| if (p->recl) |
| set_parameter_value (&block, ioparm_recl_in, p->recl); |
| |
| if (p->blank) |
| set_string (&block, &post_block, ioparm_blank, ioparm_blank_len, |
| p->blank); |
| |
| if (p->position) |
| set_string (&block, &post_block, ioparm_position, |
| ioparm_position_len, p->position); |
| |
| if (p->action) |
| set_string (&block, &post_block, ioparm_action, |
| ioparm_action_len, p->action); |
| |
| if (p->delim) |
| set_string (&block, &post_block, ioparm_delim, ioparm_delim_len, |
| p->delim); |
| |
| if (p->pad) |
| set_string (&block, &post_block, ioparm_pad, ioparm_pad_len, p->pad); |
| |
| if (p->iostat) |
| set_parameter_ref (&block, ioparm_iostat, p->iostat); |
| |
| if (p->err) |
| set_flag (&block, ioparm_err); |
| |
| tmp = gfc_build_function_call (iocall_open, NULL_TREE); |
| gfc_add_expr_to_block (&block, tmp); |
| |
| gfc_add_block_to_block (&block, &post_block); |
| |
| io_result (&block, p->err, NULL, NULL); |
| |
| return gfc_finish_block (&block); |
| } |
| |
| |
| /* Translate a CLOSE statement. */ |
| |
| tree |
| gfc_trans_close (gfc_code * code) |
| { |
| stmtblock_t block, post_block; |
| gfc_close *p; |
| tree tmp; |
| |
| gfc_init_block (&block); |
| gfc_init_block (&post_block); |
| |
| set_error_locus (&block, &code->loc); |
| p = code->ext.close; |
| |
| if (p->unit) |
| set_parameter_value (&block, ioparm_unit, p->unit); |
| |
| if (p->status) |
| set_string (&block, &post_block, ioparm_status, |
| ioparm_status_len, p->status); |
| |
| if (p->iostat) |
| set_parameter_ref (&block, ioparm_iostat, p->iostat); |
| |
| if (p->err) |
| set_flag (&block, ioparm_err); |
| |
| tmp = gfc_build_function_call (iocall_close, NULL_TREE); |
| gfc_add_expr_to_block (&block, tmp); |
| |
| gfc_add_block_to_block (&block, &post_block); |
| |
| io_result (&block, p->err, NULL, NULL); |
| |
| return gfc_finish_block (&block); |
| } |
| |
| |
| /* Common subroutine for building a file positioning statement. */ |
| |
| static tree |
| build_filepos (tree function, gfc_code * code) |
| { |
| stmtblock_t block; |
| gfc_filepos *p; |
| tree tmp; |
| |
| p = code->ext.filepos; |
| |
| gfc_init_block (&block); |
| |
| set_error_locus (&block, &code->loc); |
| |
| if (p->unit) |
| set_parameter_value (&block, ioparm_unit, p->unit); |
| |
| if (p->iostat) |
| set_parameter_ref (&block, ioparm_iostat, p->iostat); |
| |
| if (p->err) |
| set_flag (&block, ioparm_err); |
| |
| tmp = gfc_build_function_call (function, NULL); |
| gfc_add_expr_to_block (&block, tmp); |
| |
| io_result (&block, p->err, NULL, NULL); |
| |
| return gfc_finish_block (&block); |
| } |
| |
| |
| /* Translate a BACKSPACE statement. */ |
| |
| tree |
| gfc_trans_backspace (gfc_code * code) |
| { |
| |
| return build_filepos (iocall_backspace, code); |
| } |
| |
| |
| /* Translate an ENDFILE statement. */ |
| |
| tree |
| gfc_trans_endfile (gfc_code * code) |
| { |
| |
| return build_filepos (iocall_endfile, code); |
| } |
| |
| |
| /* Translate a REWIND statement. */ |
| |
| tree |
| gfc_trans_rewind (gfc_code * code) |
| { |
| |
| return build_filepos (iocall_rewind, code); |
| } |
| |
| |
| /* Translate the non-IOLENGTH form of an INQUIRE statement. */ |
| |
| tree |
| gfc_trans_inquire (gfc_code * code) |
| { |
| stmtblock_t block, post_block; |
| gfc_inquire *p; |
| tree tmp; |
| |
| gfc_init_block (&block); |
| gfc_init_block (&post_block); |
| |
| set_error_locus (&block, &code->loc); |
| p = code->ext.inquire; |
| |
| if (p->unit) |
| set_parameter_value (&block, ioparm_unit, p->unit); |
| |
| if (p->file) |
| set_string (&block, &post_block, ioparm_file, ioparm_file_len, p->file); |
| |
| if (p->iostat) |
| set_parameter_ref (&block, ioparm_iostat, p->iostat); |
| |
| if (p->exist) |
| set_parameter_ref (&block, ioparm_exist, p->exist); |
| |
| if (p->opened) |
| set_parameter_ref (&block, ioparm_opened, p->opened); |
| |
| if (p->number) |
| set_parameter_ref (&block, ioparm_number, p->number); |
| |
| if (p->named) |
| set_parameter_ref (&block, ioparm_named, p->named); |
| |
| if (p->name) |
| set_string (&block, &post_block, ioparm_name, ioparm_name_len, p->name); |
| |
| if (p->access) |
| set_string (&block, &post_block, ioparm_access, |
| ioparm_access_len, p->access); |
| |
| if (p->sequential) |
| set_string (&block, &post_block, ioparm_sequential, |
| ioparm_sequential_len, p->sequential); |
| |
| if (p->direct) |
| set_string (&block, &post_block, ioparm_direct, |
| ioparm_direct_len, p->direct); |
| |
| if (p->form) |
| set_string (&block, &post_block, ioparm_form, ioparm_form_len, p->form); |
| |
| if (p->formatted) |
| set_string (&block, &post_block, ioparm_formatted, |
| ioparm_formatted_len, p->formatted); |
| |
| if (p->unformatted) |
| set_string (&block, &post_block, ioparm_unformatted, |
| ioparm_unformatted_len, p->unformatted); |
| |
| if (p->recl) |
| set_parameter_ref (&block, ioparm_recl_out, p->recl); |
| |
| if (p->nextrec) |
| set_parameter_ref (&block, ioparm_nextrec, p->nextrec); |
| |
| if (p->blank) |
| set_string (&block, &post_block, ioparm_blank, ioparm_blank_len, |
| p->blank); |
| |
| if (p->position) |
| set_string (&block, &post_block, ioparm_position, |
| ioparm_position_len, p->position); |
| |
| if (p->action) |
| set_string (&block, &post_block, ioparm_action, |
| ioparm_action_len, p->action); |
| |
| if (p->read) |
| set_string (&block, &post_block, ioparm_read, ioparm_read_len, p->read); |
| |
| if (p->write) |
| set_string (&block, &post_block, ioparm_write, |
| ioparm_write_len, p->write); |
| |
| if (p->readwrite) |
| set_string (&block, &post_block, ioparm_readwrite, |
| ioparm_readwrite_len, p->readwrite); |
| |
| if (p->delim) |
| set_string (&block, &post_block, ioparm_delim, ioparm_delim_len, |
| p->delim); |
| |
| if (p->pad) |
| set_string (&block, &post_block, ioparm_pad, ioparm_pad_len, |
| p->pad); |
| |
| if (p->err) |
| set_flag (&block, ioparm_err); |
| |
| tmp = gfc_build_function_call (iocall_inquire, NULL); |
| gfc_add_expr_to_block (&block, tmp); |
| |
| gfc_add_block_to_block (&block, &post_block); |
| |
| io_result (&block, p->err, NULL, NULL); |
| |
| return gfc_finish_block (&block); |
| } |
| |
| static gfc_expr * |
| gfc_new_nml_name_expr (const char * name) |
| { |
| gfc_expr * nml_name; |
| |
| nml_name = gfc_get_expr(); |
| nml_name->ref = NULL; |
| nml_name->expr_type = EXPR_CONSTANT; |
| nml_name->ts.kind = gfc_default_character_kind; |
| nml_name->ts.type = BT_CHARACTER; |
| nml_name->value.character.length = strlen(name); |
| nml_name->value.character.string = gfc_getmem (strlen (name) + 1); |
| strcpy (nml_name->value.character.string, name); |
| |
| return nml_name; |
| } |
| |
| /* nml_full_name builds up the fully qualified name of a |
| derived type component. */ |
| |
| static char* |
| nml_full_name (const char* var_name, const char* cmp_name) |
| { |
| int full_name_length; |
| char * full_name; |
| |
| full_name_length = strlen (var_name) + strlen (cmp_name) + 1; |
| full_name = (char*)gfc_getmem (full_name_length + 1); |
| strcpy (full_name, var_name); |
| full_name = strcat (full_name, "%"); |
| full_name = strcat (full_name, cmp_name); |
| return full_name; |
| } |
| |
| /* nml_get_addr_expr builds an address expression from the |
| gfc_symbol or gfc_component backend_decl's. An offset is |
| provided so that the address of an element of an array of |
| derived types is returned. This is used in the runtime to |
| determine that span of the derived type. */ |
| |
| static tree |
| nml_get_addr_expr (gfc_symbol * sym, gfc_component * c, |
| tree base_addr) |
| { |
| tree decl = NULL_TREE; |
| tree tmp; |
| tree itmp; |
| int array_flagged; |
| int dummy_arg_flagged; |
| |
| if (sym) |
| { |
| sym->attr.referenced = 1; |
| decl = gfc_get_symbol_decl (sym); |
| } |
| else |
| decl = c->backend_decl; |
| |
| gcc_assert (decl && ((TREE_CODE (decl) == FIELD_DECL |
| || TREE_CODE (decl) == VAR_DECL |
| || TREE_CODE (decl) == PARM_DECL) |
| || TREE_CODE (decl) == COMPONENT_REF)); |
| |
| tmp = decl; |
| |
| /* Build indirect reference, if dummy argument. */ |
| |
| dummy_arg_flagged = POINTER_TYPE_P (TREE_TYPE(tmp)); |
| |
| itmp = (dummy_arg_flagged) ? gfc_build_indirect_ref (tmp) : tmp; |
| |
| /* If an array, set flag and use indirect ref. if built. */ |
| |
| array_flagged = (TREE_CODE (TREE_TYPE (itmp)) == ARRAY_TYPE |
| && !TYPE_STRING_FLAG (TREE_TYPE (itmp))); |
| |
| if (array_flagged) |
| tmp = itmp; |
| |
| /* Treat the component of a derived type, using base_addr for |
| the derived type. */ |
| |
| if (TREE_CODE (decl) == FIELD_DECL) |
| tmp = build3 (COMPONENT_REF, TREE_TYPE (tmp), |
| base_addr, tmp, NULL_TREE); |
| |
| /* If we have a derived type component, a reference to the first |
| element of the array is built. This is done so that base_addr, |
| used in the build of the component reference, always points to |
| a RECORD_TYPE. */ |
| |
| if (array_flagged) |
| tmp = gfc_build_array_ref (tmp, gfc_index_zero_node); |
| |
| /* Now build the address expression. */ |
| |
| tmp = gfc_build_addr_expr (NULL, tmp); |
| |
| /* If scalar dummy, resolve indirect reference now. */ |
| |
| if (dummy_arg_flagged && !array_flagged) |
| tmp = gfc_build_indirect_ref (tmp); |
| |
| gcc_assert (tmp && POINTER_TYPE_P (TREE_TYPE (tmp))); |
| |
| return tmp; |
| } |
| |
| /* For an object VAR_NAME whose base address is BASE_ADDR, generate a |
| call to iocall_set_nml_val. For derived type variable, recursively |
| generate calls to iocall_set_nml_val for each component. */ |
| |
| #define NML_FIRST_ARG(a) args = gfc_chainon_list (NULL_TREE, a) |
| #define NML_ADD_ARG(a) args = gfc_chainon_list (args, a) |
| #define IARG(i) build_int_cst (gfc_array_index_type, i) |
| |
| static void |
| transfer_namelist_element (stmtblock_t * block, const char * var_name, |
| gfc_symbol * sym, gfc_component * c, |
| tree base_addr) |
| { |
| gfc_typespec * ts = NULL; |
| gfc_array_spec * as = NULL; |
| tree addr_expr = NULL; |
| tree dt = NULL; |
| tree string; |
| tree tmp; |
| tree args; |
| tree dtype; |
| int n_dim; |
| int itype; |
| int rank = 0; |
| |
| gcc_assert (sym || c); |
| |
| /* Build the namelist object name. */ |
| |
| string = gfc_build_cstring_const (var_name); |
| string = gfc_build_addr_expr (pchar_type_node, string); |
| |
| /* Build ts, as and data address using symbol or component. */ |
| |
| ts = (sym) ? &sym->ts : &c->ts; |
| as = (sym) ? sym->as : c->as; |
| |
| addr_expr = nml_get_addr_expr (sym, c, base_addr); |
| |
| if (as) |
| rank = as->rank; |
| |
| if (rank) |
| { |
| dt = TREE_TYPE ((sym) ? sym->backend_decl : c->backend_decl); |
| dtype = gfc_get_dtype (dt); |
| } |
| else |
| { |
| itype = GFC_DTYPE_UNKNOWN; |
| |
| switch (ts->type) |
| |
| { |
| case BT_INTEGER: |
| itype = GFC_DTYPE_INTEGER; |
| break; |
| case BT_LOGICAL: |
| itype = GFC_DTYPE_LOGICAL; |
| break; |
| case BT_REAL: |
| itype = GFC_DTYPE_REAL; |
| break; |
| case BT_COMPLEX: |
| itype = GFC_DTYPE_COMPLEX; |
| break; |
| case BT_DERIVED: |
| itype = GFC_DTYPE_DERIVED; |
| break; |
| case BT_CHARACTER: |
| itype = GFC_DTYPE_CHARACTER; |
| break; |
| default: |
| gcc_unreachable (); |
| } |
| |
| dtype = IARG (itype << GFC_DTYPE_TYPE_SHIFT); |
| } |
| |
| /* Build up the arguments for the transfer call. |
| The call for the scalar part transfers: |
| (address, name, type, kind or string_length, dtype) */ |
| |
| NML_FIRST_ARG (addr_expr); |
| NML_ADD_ARG (string); |
| NML_ADD_ARG (IARG (ts->kind)); |
| |
| if (ts->type == BT_CHARACTER) |
| NML_ADD_ARG (ts->cl->backend_decl); |
| else |
| NML_ADD_ARG (convert (gfc_charlen_type_node, integer_zero_node)); |
| |
| NML_ADD_ARG (dtype); |
| tmp = gfc_build_function_call (iocall_set_nml_val, args); |
| gfc_add_expr_to_block (block, tmp); |
| |
| /* If the object is an array, transfer rank times: |
| (null pointer, name, stride, lbound, ubound) */ |
| |
| for ( n_dim = 0 ; n_dim < rank ; n_dim++ ) |
| { |
| NML_FIRST_ARG (IARG (n_dim)); |
| NML_ADD_ARG (GFC_TYPE_ARRAY_STRIDE (dt, n_dim)); |
| NML_ADD_ARG (GFC_TYPE_ARRAY_LBOUND (dt, n_dim)); |
| NML_ADD_ARG (GFC_TYPE_ARRAY_UBOUND (dt, n_dim)); |
| tmp = gfc_build_function_call (iocall_set_nml_val_dim, args); |
| gfc_add_expr_to_block (block, tmp); |
| } |
| |
| if (ts->type == BT_DERIVED) |
| { |
| gfc_component *cmp; |
| |
| /* Provide the RECORD_TYPE to build component references. */ |
| |
| tree expr = gfc_build_indirect_ref (addr_expr); |
| |
| for (cmp = ts->derived->components; cmp; cmp = cmp->next) |
| { |
| char *full_name = nml_full_name (var_name, cmp->name); |
| transfer_namelist_element (block, |
| full_name, |
| NULL, cmp, expr); |
| gfc_free (full_name); |
| } |
| } |
| } |
| |
| #undef IARG |
| #undef NML_ADD_ARG |
| #undef NML_FIRST_ARG |
| |
| /* Create a data transfer statement. Not all of the fields are valid |
| for both reading and writing, but improper use has been filtered |
| out by now. */ |
| |
| static tree |
| build_dt (tree * function, gfc_code * code) |
| { |
| stmtblock_t block, post_block; |
| gfc_dt *dt; |
| tree tmp; |
| gfc_expr *nmlname; |
| gfc_namelist *nml; |
| |
| gfc_init_block (&block); |
| gfc_init_block (&post_block); |
| |
| set_error_locus (&block, &code->loc); |
| dt = code->ext.dt; |
| |
| gcc_assert (dt != NULL); |
| |
| if (dt->io_unit) |
| { |
| if (dt->io_unit->ts.type == BT_CHARACTER) |
| { |
| set_string (&block, &post_block, ioparm_internal_unit, |
| ioparm_internal_unit_len, dt->io_unit); |
| } |
| else |
| set_parameter_value (&block, ioparm_unit, dt->io_unit); |
| } |
| |
| if (dt->rec) |
| set_parameter_value (&block, ioparm_rec, dt->rec); |
| |
| if (dt->advance) |
| set_string (&block, &post_block, ioparm_advance, ioparm_advance_len, |
| dt->advance); |
| |
| if (dt->format_expr) |
| set_string (&block, &post_block, ioparm_format, ioparm_format_len, |
| dt->format_expr); |
| |
| if (dt->format_label) |
| { |
| if (dt->format_label == &format_asterisk) |
| set_flag (&block, ioparm_list_format); |
| else |
| set_string (&block, &post_block, ioparm_format, |
| ioparm_format_len, dt->format_label->format); |
| } |
| |
| if (dt->iostat) |
| set_parameter_ref (&block, ioparm_iostat, dt->iostat); |
| |
| if (dt->size) |
| set_parameter_ref (&block, ioparm_size, dt->size); |
| |
| if (dt->err) |
| set_flag (&block, ioparm_err); |
| |
| if (dt->eor) |
| set_flag(&block, ioparm_eor); |
| |
| if (dt->end) |
| set_flag(&block, ioparm_end); |
| |
| if (dt->namelist) |
| { |
| if (dt->format_expr || dt->format_label) |
| gfc_internal_error ("build_dt: format with namelist"); |
| |
| nmlname = gfc_new_nml_name_expr(dt->namelist->name); |
| |
| set_string (&block, &post_block, ioparm_namelist_name, |
| ioparm_namelist_name_len, nmlname); |
| |
| if (last_dt == READ) |
| set_flag (&block, ioparm_namelist_read_mode); |
| |
| for (nml = dt->namelist->namelist; nml; nml = nml->next) |
| transfer_namelist_element (&block, nml->sym->name, nml->sym, |
| NULL, NULL); |
| } |
| |
| tmp = gfc_build_function_call (*function, NULL_TREE); |
| gfc_add_expr_to_block (&block, tmp); |
| |
| gfc_add_block_to_block (&block, &post_block); |
| |
| return gfc_finish_block (&block); |
| } |
| |
| |
| /* Translate the IOLENGTH form of an INQUIRE statement. We treat |
| this as a third sort of data transfer statement, except that |
| lengths are summed instead of actually transferring any data. */ |
| |
| tree |
| gfc_trans_iolength (gfc_code * code) |
| { |
| stmtblock_t block; |
| gfc_inquire *inq; |
| tree dt; |
| |
| gfc_init_block (&block); |
| |
| set_error_locus (&block, &code->loc); |
| |
| inq = code->ext.inquire; |
| |
| /* First check that preconditions are met. */ |
| gcc_assert (inq != NULL); |
| gcc_assert (inq->iolength != NULL); |
| |
| /* Connect to the iolength variable. */ |
| if (inq->iolength) |
| set_parameter_ref (&block, ioparm_iolength, inq->iolength); |
| |
| /* Actual logic. */ |
| last_dt = IOLENGTH; |
| dt = build_dt(&iocall_iolength, code); |
| |
| gfc_add_expr_to_block (&block, dt); |
| |
| return gfc_finish_block (&block); |
| } |
| |
| |
| /* Translate a READ statement. */ |
| |
| tree |
| gfc_trans_read (gfc_code * code) |
| { |
| |
| last_dt = READ; |
| return build_dt (&iocall_read, code); |
| } |
| |
| |
| /* Translate a WRITE statement */ |
| |
| tree |
| gfc_trans_write (gfc_code * code) |
| { |
| |
| last_dt = WRITE; |
| return build_dt (&iocall_write, code); |
| } |
| |
| |
| /* Finish a data transfer statement. */ |
| |
| tree |
| gfc_trans_dt_end (gfc_code * code) |
| { |
| tree function, tmp; |
| stmtblock_t block; |
| |
| gfc_init_block (&block); |
| |
| switch (last_dt) |
| { |
| case READ: |
| function = iocall_read_done; |
| break; |
| |
| case WRITE: |
| function = iocall_write_done; |
| break; |
| |
| case IOLENGTH: |
| function = iocall_iolength_done; |
| break; |
| |
| default: |
| gcc_unreachable (); |
| } |
| |
| tmp = gfc_build_function_call (function, NULL); |
| gfc_add_expr_to_block (&block, tmp); |
| |
| if (last_dt != IOLENGTH) |
| { |
| gcc_assert (code->ext.dt != NULL); |
| io_result (&block, code->ext.dt->err, |
| code->ext.dt->end, code->ext.dt->eor); |
| } |
| |
| return gfc_finish_block (&block); |
| } |
| |
| static void |
| transfer_expr (gfc_se * se, gfc_typespec * ts, tree addr_expr); |
| |
| /* Given an array field in a derived type variable, generate the code |
| for the loop that iterates over array elements, and the code that |
| accesses those array elements. Use transfer_expr to generate code |
| for transferring that element. Because elements may also be |
| derived types, transfer_expr and transfer_array_component are mutually |
| recursive. */ |
| |
| static tree |
| transfer_array_component (tree expr, gfc_component * cm) |
| { |
| tree tmp; |
| stmtblock_t body; |
| stmtblock_t block; |
| gfc_loopinfo loop; |
| int n; |
| gfc_ss *ss; |
| gfc_se se; |
| |
| gfc_start_block (&block); |
| gfc_init_se (&se, NULL); |
| |
| /* Create and initialize Scalarization Status. Unlike in |
| gfc_trans_transfer, we can't simply use gfc_walk_expr to take |
| care of this task, because we don't have a gfc_expr at hand. |
| Build one manually, as in gfc_trans_subarray_assign. */ |
| |
| ss = gfc_get_ss (); |
| ss->type = GFC_SS_COMPONENT; |
| ss->expr = NULL; |
| ss->shape = gfc_get_shape (cm->as->rank); |
| ss->next = gfc_ss_terminator; |
| ss->data.info.dimen = cm->as->rank; |
| ss->data.info.descriptor = expr; |
| ss->data.info.data = gfc_conv_array_data (expr); |
| ss->data.info.offset = gfc_conv_array_offset (expr); |
| for (n = 0; n < cm->as->rank; n++) |
| { |
| ss->data.info.dim[n] = n; |
| ss->data.info.start[n] = gfc_conv_array_lbound (expr, n); |
| ss->data.info.stride[n] = gfc_index_one_node; |
| |
| mpz_init (ss->shape[n]); |
| mpz_sub (ss->shape[n], cm->as->upper[n]->value.integer, |
| cm->as->lower[n]->value.integer); |
| mpz_add_ui (ss->shape[n], ss->shape[n], 1); |
| } |
| |
| /* Once we got ss, we use scalarizer to create the loop. */ |
| |
| gfc_init_loopinfo (&loop); |
| gfc_add_ss_to_loop (&loop, ss); |
| gfc_conv_ss_startstride (&loop); |
| gfc_conv_loop_setup (&loop); |
| gfc_mark_ss_chain_used (ss, 1); |
| gfc_start_scalarized_body (&loop, &body); |
| |
| gfc_copy_loopinfo_to_se (&se, &loop); |
| se.ss = ss; |
| |
| /* gfc_conv_tmp_array_ref assumes that se.expr contains the array. */ |
| se.expr = expr; |
| gfc_conv_tmp_array_ref (&se); |
| |
| /* Now se.expr contains an element of the array. Take the address and pass |
| it to the IO routines. */ |
| tmp = gfc_build_addr_expr (NULL, se.expr); |
| transfer_expr (&se, &cm->ts, tmp); |
| |
| /* We are done now with the loop body. Wrap up the scalarizer and |
| return. */ |
| |
| gfc_add_block_to_block (&body, &se.pre); |
| gfc_add_block_to_block (&body, &se.post); |
| |
| gfc_trans_scalarizing_loops (&loop, &body); |
| |
| gfc_add_block_to_block (&block, &loop.pre); |
| gfc_add_block_to_block (&block, &loop.post); |
| |
| for (n = 0; n < cm->as->rank; n++) |
| mpz_clear (ss->shape[n]); |
| gfc_free (ss->shape); |
| |
| gfc_cleanup_loop (&loop); |
| |
| return gfc_finish_block (&block); |
| } |
| |
| /* Generate the call for a scalar transfer node. */ |
| |
| static void |
| transfer_expr (gfc_se * se, gfc_typespec * ts, tree addr_expr) |
| { |
| tree args, tmp, function, arg2, field, expr; |
| gfc_component *c; |
| int kind; |
| |
| kind = ts->kind; |
| function = NULL; |
| arg2 = NULL; |
| |
| switch (ts->type) |
| { |
| case BT_INTEGER: |
| arg2 = build_int_cst (NULL_TREE, kind); |
| function = iocall_x_integer; |
| break; |
| |
| case BT_REAL: |
| arg2 = build_int_cst (NULL_TREE, kind); |
| function = iocall_x_real; |
| break; |
| |
| case BT_COMPLEX: |
| arg2 = build_int_cst (NULL_TREE, kind); |
| function = iocall_x_complex; |
| break; |
| |
| case BT_LOGICAL: |
| arg2 = build_int_cst (NULL_TREE, kind); |
| function = iocall_x_logical; |
| break; |
| |
| case BT_CHARACTER: |
| if (se->string_length) |
| arg2 = se->string_length; |
| else |
| { |
| tmp = gfc_build_indirect_ref (addr_expr); |
| gcc_assert (TREE_CODE (TREE_TYPE (tmp)) == ARRAY_TYPE); |
| arg2 = TYPE_MAX_VALUE (TYPE_DOMAIN (TREE_TYPE (tmp))); |
| } |
| function = iocall_x_character; |
| break; |
| |
| case BT_DERIVED: |
| /* Recurse into the elements of the derived type. */ |
| expr = gfc_evaluate_now (addr_expr, &se->pre); |
| expr = gfc_build_indirect_ref (expr); |
| |
| for (c = ts->derived->components; c; c = c->next) |
| { |
| field = c->backend_decl; |
| gcc_assert (field && TREE_CODE (field) == FIELD_DECL); |
| |
| tmp = build3 (COMPONENT_REF, TREE_TYPE (field), expr, field, |
| NULL_TREE); |
| |
| if (c->dimension) |
| { |
| tmp = transfer_array_component (tmp, c); |
| gfc_add_expr_to_block (&se->pre, tmp); |
| } |
| else |
| { |
| if (!c->pointer) |
| tmp = gfc_build_addr_expr (NULL, tmp); |
| transfer_expr (se, &c->ts, tmp); |
| } |
| } |
| return; |
| |
| default: |
| internal_error ("Bad IO basetype (%d)", ts->type); |
| } |
| |
| args = gfc_chainon_list (NULL_TREE, addr_expr); |
| args = gfc_chainon_list (args, arg2); |
| |
| tmp = gfc_build_function_call (function, args); |
| gfc_add_expr_to_block (&se->pre, tmp); |
| gfc_add_block_to_block (&se->pre, &se->post); |
| |
| } |
| |
| |
| /* gfc_trans_transfer()-- Translate a TRANSFER code node */ |
| |
| tree |
| gfc_trans_transfer (gfc_code * code) |
| { |
| stmtblock_t block, body; |
| gfc_loopinfo loop; |
| gfc_expr *expr; |
| gfc_ss *ss; |
| gfc_se se; |
| tree tmp; |
| |
| gfc_start_block (&block); |
| |
| expr = code->expr; |
| ss = gfc_walk_expr (expr); |
| |
| gfc_init_se (&se, NULL); |
| |
| if (ss == gfc_ss_terminator) |
| gfc_init_block (&body); |
| else |
| { |
| /* Initialize the scalarizer. */ |
| gfc_init_loopinfo (&loop); |
| gfc_add_ss_to_loop (&loop, ss); |
| |
| /* Initialize the loop. */ |
| gfc_conv_ss_startstride (&loop); |
| gfc_conv_loop_setup (&loop); |
| |
| /* The main loop body. */ |
| gfc_mark_ss_chain_used (ss, 1); |
| gfc_start_scalarized_body (&loop, &body); |
| |
| gfc_copy_loopinfo_to_se (&se, &loop); |
| se.ss = ss; |
| } |
| |
| gfc_conv_expr_reference (&se, expr); |
| |
| transfer_expr (&se, &expr->ts, se.expr); |
| |
| gfc_add_block_to_block (&body, &se.pre); |
| gfc_add_block_to_block (&body, &se.post); |
| |
| if (se.ss == NULL) |
| tmp = gfc_finish_block (&body); |
| else |
| { |
| gcc_assert (se.ss == gfc_ss_terminator); |
| gfc_trans_scalarizing_loops (&loop, &body); |
| |
| gfc_add_block_to_block (&loop.pre, &loop.post); |
| tmp = gfc_finish_block (&loop.pre); |
| gfc_cleanup_loop (&loop); |
| } |
| |
| gfc_add_expr_to_block (&block, tmp); |
| |
| return gfc_finish_block (&block); |
| } |
| |
| #include "gt-fortran-trans-io.h" |
| |