| /* IO Code translation/library interface |
| 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/>. */ |
| |
| |
| #include "config.h" |
| #include "system.h" |
| #include "coretypes.h" |
| #include "tree.h" |
| #include "gfortran.h" |
| #include "trans.h" |
| #include "stringpool.h" |
| #include "fold-const.h" |
| #include "stor-layout.h" |
| #include "trans-stmt.h" |
| #include "trans-array.h" |
| #include "trans-types.h" |
| #include "trans-const.h" |
| #include "options.h" |
| |
| /* Members of the ioparm structure. */ |
| |
| enum ioparam_type |
| { |
| IOPARM_ptype_common, |
| IOPARM_ptype_open, |
| IOPARM_ptype_close, |
| IOPARM_ptype_filepos, |
| IOPARM_ptype_inquire, |
| IOPARM_ptype_dt, |
| IOPARM_ptype_wait, |
| IOPARM_ptype_num |
| }; |
| |
| enum iofield_type |
| { |
| IOPARM_type_int4, |
| IOPARM_type_intio, |
| IOPARM_type_pint4, |
| IOPARM_type_pintio, |
| IOPARM_type_pchar, |
| IOPARM_type_parray, |
| IOPARM_type_pad, |
| IOPARM_type_char1, |
| IOPARM_type_char2, |
| IOPARM_type_common, |
| IOPARM_type_num |
| }; |
| |
| typedef struct GTY(()) gfc_st_parameter_field { |
| const char *name; |
| unsigned int mask; |
| enum ioparam_type param_type; |
| enum iofield_type type; |
| tree field; |
| tree field_len; |
| } |
| gfc_st_parameter_field; |
| |
| typedef struct GTY(()) gfc_st_parameter { |
| const char *name; |
| tree type; |
| } |
| gfc_st_parameter; |
| |
| enum iofield |
| { |
| #define IOPARM(param_type, name, mask, type) IOPARM_##param_type##_##name, |
| #include "ioparm.def" |
| #undef IOPARM |
| IOPARM_field_num |
| }; |
| |
| static GTY(()) gfc_st_parameter st_parameter[] = |
| { |
| { "common", NULL }, |
| { "open", NULL }, |
| { "close", NULL }, |
| { "filepos", NULL }, |
| { "inquire", NULL }, |
| { "dt", NULL }, |
| { "wait", NULL } |
| }; |
| |
| static GTY(()) gfc_st_parameter_field st_parameter_field[] = |
| { |
| #define IOPARM(param_type, name, mask, type) \ |
| { #name, mask, IOPARM_ptype_##param_type, IOPARM_type_##type, NULL, NULL }, |
| #include "ioparm.def" |
| #undef IOPARM |
| { NULL, 0, (enum ioparam_type) 0, (enum iofield_type) 0, NULL, NULL } |
| }; |
| |
| /* Library I/O subroutines */ |
| |
| enum iocall |
| { |
| IOCALL_READ, |
| IOCALL_READ_DONE, |
| IOCALL_WRITE, |
| IOCALL_WRITE_DONE, |
| IOCALL_X_INTEGER, |
| IOCALL_X_INTEGER_WRITE, |
| IOCALL_X_LOGICAL, |
| IOCALL_X_LOGICAL_WRITE, |
| IOCALL_X_CHARACTER, |
| IOCALL_X_CHARACTER_WRITE, |
| IOCALL_X_CHARACTER_WIDE, |
| IOCALL_X_CHARACTER_WIDE_WRITE, |
| IOCALL_X_REAL, |
| IOCALL_X_REAL_WRITE, |
| IOCALL_X_COMPLEX, |
| IOCALL_X_COMPLEX_WRITE, |
| IOCALL_X_REAL128, |
| IOCALL_X_REAL128_WRITE, |
| IOCALL_X_COMPLEX128, |
| IOCALL_X_COMPLEX128_WRITE, |
| IOCALL_X_ARRAY, |
| IOCALL_X_ARRAY_WRITE, |
| IOCALL_X_DERIVED, |
| IOCALL_OPEN, |
| IOCALL_CLOSE, |
| IOCALL_INQUIRE, |
| IOCALL_IOLENGTH, |
| IOCALL_IOLENGTH_DONE, |
| IOCALL_REWIND, |
| IOCALL_BACKSPACE, |
| IOCALL_ENDFILE, |
| IOCALL_FLUSH, |
| IOCALL_SET_NML_VAL, |
| IOCALL_SET_NML_DTIO_VAL, |
| IOCALL_SET_NML_VAL_DIM, |
| IOCALL_WAIT, |
| IOCALL_NUM |
| }; |
| |
| static GTY(()) tree iocall[IOCALL_NUM]; |
| |
| /* 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; |
| |
| /* The data transfer parameter block that should be shared by all |
| data transfer calls belonging to the same read/write/iolength. */ |
| static GTY(()) tree dt_parm; |
| static stmtblock_t *dt_post_end_block; |
| |
| static void |
| gfc_build_st_parameter (enum ioparam_type ptype, tree *types) |
| { |
| unsigned int type; |
| gfc_st_parameter_field *p; |
| char name[64]; |
| size_t len; |
| tree t = make_node (RECORD_TYPE); |
| tree *chain = NULL; |
| |
| len = strlen (st_parameter[ptype].name); |
| gcc_assert (len <= sizeof (name) - sizeof ("__st_parameter_")); |
| memcpy (name, "__st_parameter_", sizeof ("__st_parameter_")); |
| memcpy (name + sizeof ("__st_parameter_") - 1, st_parameter[ptype].name, |
| len + 1); |
| TYPE_NAME (t) = get_identifier (name); |
| |
| for (type = 0, p = st_parameter_field; type < IOPARM_field_num; type++, p++) |
| if (p->param_type == ptype) |
| switch (p->type) |
| { |
| case IOPARM_type_int4: |
| case IOPARM_type_intio: |
| case IOPARM_type_pint4: |
| case IOPARM_type_pintio: |
| case IOPARM_type_parray: |
| case IOPARM_type_pchar: |
| case IOPARM_type_pad: |
| p->field = gfc_add_field_to_struct (t, get_identifier (p->name), |
| types[p->type], &chain); |
| break; |
| case IOPARM_type_char1: |
| p->field = gfc_add_field_to_struct (t, get_identifier (p->name), |
| pchar_type_node, &chain); |
| /* FALLTHROUGH */ |
| case IOPARM_type_char2: |
| len = strlen (p->name); |
| gcc_assert (len <= sizeof (name) - sizeof ("_len")); |
| memcpy (name, p->name, len); |
| memcpy (name + len, "_len", sizeof ("_len")); |
| p->field_len = gfc_add_field_to_struct (t, get_identifier (name), |
| gfc_charlen_type_node, |
| &chain); |
| if (p->type == IOPARM_type_char2) |
| p->field = gfc_add_field_to_struct (t, get_identifier (p->name), |
| pchar_type_node, &chain); |
| break; |
| case IOPARM_type_common: |
| p->field |
| = gfc_add_field_to_struct (t, |
| get_identifier (p->name), |
| st_parameter[IOPARM_ptype_common].type, |
| &chain); |
| break; |
| case IOPARM_type_num: |
| gcc_unreachable (); |
| } |
| |
| /* -Wpadded warnings on these artificially created structures are not |
| helpful; suppress them. */ |
| int save_warn_padded = warn_padded; |
| warn_padded = 0; |
| gfc_finish_type (t); |
| warn_padded = save_warn_padded; |
| st_parameter[ptype].type = t; |
| } |
| |
| |
| /* Build code to test an error condition and call generate_error if needed. |
| Note: This builds calls to generate_error in the runtime library function. |
| The function generate_error is dependent on certain parameters in the |
| st_parameter_common flags to be set. (See libgfortran/runtime/error.c) |
| Therefore, the code to set these flags must be generated before |
| this function is used. */ |
| |
| static void |
| gfc_trans_io_runtime_check (bool has_iostat, tree cond, tree var, |
| int error_code, const char * msgid, |
| stmtblock_t * pblock) |
| { |
| stmtblock_t block; |
| tree body; |
| tree tmp; |
| tree arg1, arg2, arg3; |
| char *message; |
| |
| if (integer_zerop (cond)) |
| return; |
| |
| /* The code to generate the error. */ |
| gfc_start_block (&block); |
| |
| if (has_iostat) |
| gfc_add_expr_to_block (&block, build_predict_expr (PRED_FORTRAN_FAIL_IO, |
| NOT_TAKEN)); |
| else |
| gfc_add_expr_to_block (&block, build_predict_expr (PRED_NORETURN, |
| NOT_TAKEN)); |
| |
| arg1 = gfc_build_addr_expr (NULL_TREE, var); |
| |
| arg2 = build_int_cst (integer_type_node, error_code), |
| |
| message = xasprintf ("%s", _(msgid)); |
| arg3 = gfc_build_addr_expr (pchar_type_node, |
| gfc_build_localized_cstring_const (message)); |
| free (message); |
| |
| tmp = build_call_expr_loc (input_location, |
| gfor_fndecl_generate_error, 3, arg1, arg2, arg3); |
| |
| gfc_add_expr_to_block (&block, tmp); |
| |
| body = gfc_finish_block (&block); |
| |
| if (integer_onep (cond)) |
| { |
| gfc_add_expr_to_block (pblock, body); |
| } |
| else |
| { |
| tmp = build3_v (COND_EXPR, cond, body, build_empty_stmt (input_location)); |
| gfc_add_expr_to_block (pblock, tmp); |
| } |
| } |
| |
| |
| /* Create function decls for IO library functions. */ |
| |
| void |
| gfc_build_io_library_fndecls (void) |
| { |
| tree types[IOPARM_type_num], pad_idx, gfc_int4_type_node; |
| tree gfc_intio_type_node; |
| tree parm_type, dt_parm_type; |
| HOST_WIDE_INT pad_size; |
| unsigned int ptype; |
| |
| types[IOPARM_type_int4] = gfc_int4_type_node = gfc_get_int_type (4); |
| types[IOPARM_type_intio] = gfc_intio_type_node |
| = gfc_get_int_type (gfc_intio_kind); |
| types[IOPARM_type_pint4] = build_pointer_type (gfc_int4_type_node); |
| types[IOPARM_type_pintio] |
| = build_pointer_type (gfc_intio_type_node); |
| types[IOPARM_type_parray] = pchar_type_node; |
| types[IOPARM_type_pchar] = pchar_type_node; |
| pad_size = 16 * TREE_INT_CST_LOW (TYPE_SIZE_UNIT (pchar_type_node)); |
| pad_size += 32 * TREE_INT_CST_LOW (TYPE_SIZE_UNIT (integer_type_node)); |
| pad_idx = build_index_type (size_int (pad_size - 1)); |
| types[IOPARM_type_pad] = build_array_type (char_type_node, pad_idx); |
| |
| /* pad actually contains pointers and integers so it needs to have an |
| alignment that is at least as large as the needed alignment for those |
| types. See the st_parameter_dt structure in libgfortran/io/io.h for |
| what really goes into this space. */ |
| SET_TYPE_ALIGN (types[IOPARM_type_pad], MAX (TYPE_ALIGN (pchar_type_node), |
| TYPE_ALIGN (gfc_get_int_type (gfc_intio_kind)))); |
| |
| for (ptype = IOPARM_ptype_common; ptype < IOPARM_ptype_num; ptype++) |
| gfc_build_st_parameter ((enum ioparam_type) ptype, types); |
| |
| /* Define the transfer functions. */ |
| |
| dt_parm_type = build_pointer_type (st_parameter[IOPARM_ptype_dt].type); |
| |
| iocall[IOCALL_X_INTEGER] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_integer")), ". w W . ", |
| void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node); |
| |
| iocall[IOCALL_X_INTEGER_WRITE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_integer_write")), ". w R . ", |
| void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node); |
| |
| iocall[IOCALL_X_LOGICAL] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_logical")), ". w W . ", |
| void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node); |
| |
| iocall[IOCALL_X_LOGICAL_WRITE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_logical_write")), ". w R . ", |
| void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node); |
| |
| iocall[IOCALL_X_CHARACTER] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_character")), ". w W . ", |
| void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_charlen_type_node); |
| |
| iocall[IOCALL_X_CHARACTER_WRITE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_character_write")), ". w R . ", |
| void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_charlen_type_node); |
| |
| iocall[IOCALL_X_CHARACTER_WIDE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_character_wide")), ". w W . . ", |
| void_type_node, 4, dt_parm_type, pvoid_type_node, |
| gfc_charlen_type_node, gfc_int4_type_node); |
| |
| iocall[IOCALL_X_CHARACTER_WIDE_WRITE] = |
| gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_character_wide_write")), ". w R . . ", |
| void_type_node, 4, dt_parm_type, pvoid_type_node, |
| gfc_charlen_type_node, gfc_int4_type_node); |
| |
| iocall[IOCALL_X_REAL] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_real")), ". w W . ", |
| void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node); |
| |
| iocall[IOCALL_X_REAL_WRITE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_real_write")), ". w R . ", |
| void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node); |
| |
| iocall[IOCALL_X_COMPLEX] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_complex")), ". w W . ", |
| void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node); |
| |
| iocall[IOCALL_X_COMPLEX_WRITE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_complex_write")), ". w R . ", |
| void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node); |
| |
| /* Version for __float128. */ |
| iocall[IOCALL_X_REAL128] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_real128")), ". w W . ", |
| void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node); |
| |
| iocall[IOCALL_X_REAL128_WRITE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_real128_write")), ". w R . ", |
| void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node); |
| |
| iocall[IOCALL_X_COMPLEX128] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_complex128")), ". w W . ", |
| void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node); |
| |
| iocall[IOCALL_X_COMPLEX128_WRITE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_complex128_write")), ". w R . ", |
| void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node); |
| |
| iocall[IOCALL_X_ARRAY] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_array")), ". w w . . ", |
| void_type_node, 4, dt_parm_type, pvoid_type_node, |
| integer_type_node, gfc_charlen_type_node); |
| |
| iocall[IOCALL_X_ARRAY_WRITE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_array_write")), ". w r . . ", |
| void_type_node, 4, dt_parm_type, pvoid_type_node, |
| integer_type_node, gfc_charlen_type_node); |
| |
| iocall[IOCALL_X_DERIVED] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("transfer_derived")), ". w r ", |
| void_type_node, 2, dt_parm_type, pvoid_type_node); |
| |
| /* Library entry points */ |
| |
| iocall[IOCALL_READ] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_read")), ". w ", |
| void_type_node, 1, dt_parm_type); |
| |
| iocall[IOCALL_WRITE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_write")), ". w ", |
| void_type_node, 1, dt_parm_type); |
| |
| parm_type = build_pointer_type (st_parameter[IOPARM_ptype_open].type); |
| iocall[IOCALL_OPEN] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_open")), ". w ", |
| void_type_node, 1, parm_type); |
| |
| parm_type = build_pointer_type (st_parameter[IOPARM_ptype_close].type); |
| iocall[IOCALL_CLOSE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_close")), ". w ", |
| void_type_node, 1, parm_type); |
| |
| parm_type = build_pointer_type (st_parameter[IOPARM_ptype_inquire].type); |
| iocall[IOCALL_INQUIRE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_inquire")), ". w ", |
| void_type_node, 1, parm_type); |
| |
| iocall[IOCALL_IOLENGTH] = gfc_build_library_function_decl_with_spec( |
| get_identifier (PREFIX("st_iolength")), ". w ", |
| void_type_node, 1, dt_parm_type); |
| |
| parm_type = build_pointer_type (st_parameter[IOPARM_ptype_wait].type); |
| iocall[IOCALL_WAIT] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_wait_async")), ". w ", |
| void_type_node, 1, parm_type); |
| |
| parm_type = build_pointer_type (st_parameter[IOPARM_ptype_filepos].type); |
| iocall[IOCALL_REWIND] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_rewind")), ". w ", |
| void_type_node, 1, parm_type); |
| |
| iocall[IOCALL_BACKSPACE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_backspace")), ". w ", |
| void_type_node, 1, parm_type); |
| |
| iocall[IOCALL_ENDFILE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_endfile")), ". w ", |
| void_type_node, 1, parm_type); |
| |
| iocall[IOCALL_FLUSH] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_flush")), ". w ", |
| void_type_node, 1, parm_type); |
| |
| /* Library helpers */ |
| |
| iocall[IOCALL_READ_DONE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_read_done")), ". w ", |
| void_type_node, 1, dt_parm_type); |
| |
| iocall[IOCALL_WRITE_DONE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_write_done")), ". w ", |
| void_type_node, 1, dt_parm_type); |
| |
| iocall[IOCALL_IOLENGTH_DONE] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_iolength_done")), ". w ", |
| void_type_node, 1, dt_parm_type); |
| |
| iocall[IOCALL_SET_NML_VAL] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_set_nml_var")), ". w . R . . . ", |
| void_type_node, 6, dt_parm_type, pvoid_type_node, pvoid_type_node, |
| gfc_int4_type_node, gfc_charlen_type_node, get_dtype_type_node()); |
| |
| iocall[IOCALL_SET_NML_DTIO_VAL] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_set_nml_dtio_var")), ". w . R . . . . . ", |
| void_type_node, 8, dt_parm_type, pvoid_type_node, pvoid_type_node, |
| gfc_int4_type_node, gfc_charlen_type_node, get_dtype_type_node(), |
| pvoid_type_node, pvoid_type_node); |
| |
| iocall[IOCALL_SET_NML_VAL_DIM] = gfc_build_library_function_decl_with_spec ( |
| get_identifier (PREFIX("st_set_nml_var_dim")), ". w . . . . ", |
| void_type_node, 5, dt_parm_type, gfc_int4_type_node, |
| gfc_array_index_type, gfc_array_index_type, gfc_array_index_type); |
| } |
| |
| |
| static void |
| set_parameter_tree (stmtblock_t *block, tree var, enum iofield type, tree value) |
| { |
| tree tmp; |
| gfc_st_parameter_field *p = &st_parameter_field[type]; |
| |
| if (p->param_type == IOPARM_ptype_common) |
| var = fold_build3_loc (input_location, COMPONENT_REF, |
| st_parameter[IOPARM_ptype_common].type, |
| var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE); |
| tmp = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (p->field), |
| var, p->field, NULL_TREE); |
| gfc_add_modify (block, tmp, value); |
| } |
| |
| |
| /* Generate code to store an integer constant into the |
| st_parameter_XXX structure. */ |
| |
| static unsigned int |
| set_parameter_const (stmtblock_t *block, tree var, enum iofield type, |
| unsigned int val) |
| { |
| gfc_st_parameter_field *p = &st_parameter_field[type]; |
| |
| set_parameter_tree (block, var, type, |
| build_int_cst (TREE_TYPE (p->field), val)); |
| return p->mask; |
| } |
| |
| |
| /* Generate code to store a non-string I/O parameter into the |
| st_parameter_XXX structure. This is a pass by value. */ |
| |
| static unsigned int |
| set_parameter_value (stmtblock_t *block, tree var, enum iofield type, |
| gfc_expr *e) |
| { |
| gfc_se se; |
| tree tmp; |
| gfc_st_parameter_field *p = &st_parameter_field[type]; |
| tree dest_type = TREE_TYPE (p->field); |
| |
| gfc_init_se (&se, NULL); |
| gfc_conv_expr_val (&se, e); |
| |
| se.expr = convert (dest_type, se.expr); |
| gfc_add_block_to_block (block, &se.pre); |
| |
| if (p->param_type == IOPARM_ptype_common) |
| var = fold_build3_loc (input_location, COMPONENT_REF, |
| st_parameter[IOPARM_ptype_common].type, |
| var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE); |
| |
| tmp = fold_build3_loc (input_location, COMPONENT_REF, dest_type, var, |
| p->field, NULL_TREE); |
| gfc_add_modify (block, tmp, se.expr); |
| return p->mask; |
| } |
| |
| |
| /* Similar to set_parameter_value except generate runtime |
| error checks. */ |
| |
| static unsigned int |
| set_parameter_value_chk (stmtblock_t *block, bool has_iostat, tree var, |
| enum iofield type, gfc_expr *e) |
| { |
| gfc_se se; |
| tree tmp; |
| gfc_st_parameter_field *p = &st_parameter_field[type]; |
| tree dest_type = TREE_TYPE (p->field); |
| |
| gfc_init_se (&se, NULL); |
| gfc_conv_expr_val (&se, e); |
| |
| /* If we're storing a UNIT number, we need to check it first. */ |
| if (type == IOPARM_common_unit && e->ts.kind > 4) |
| { |
| tree cond, val; |
| int i; |
| |
| /* Don't evaluate the UNIT number multiple times. */ |
| se.expr = gfc_evaluate_now (se.expr, &se.pre); |
| |
| /* UNIT numbers should be greater than the min. */ |
| i = gfc_validate_kind (BT_INTEGER, 4, false); |
| val = gfc_conv_mpz_to_tree (gfc_integer_kinds[i].pedantic_min_int, 4); |
| cond = fold_build2_loc (input_location, LT_EXPR, logical_type_node, |
| se.expr, |
| fold_convert (TREE_TYPE (se.expr), val)); |
| gfc_trans_io_runtime_check (has_iostat, cond, var, LIBERROR_BAD_UNIT, |
| "Unit number in I/O statement too small", |
| &se.pre); |
| |
| /* UNIT numbers should be less than the max. */ |
| val = gfc_conv_mpz_to_tree (gfc_integer_kinds[i].huge, 4); |
| cond = fold_build2_loc (input_location, GT_EXPR, logical_type_node, |
| se.expr, |
| fold_convert (TREE_TYPE (se.expr), val)); |
| gfc_trans_io_runtime_check (has_iostat, cond, var, LIBERROR_BAD_UNIT, |
| "Unit number in I/O statement too large", |
| &se.pre); |
| } |
| |
| se.expr = convert (dest_type, se.expr); |
| gfc_add_block_to_block (block, &se.pre); |
| |
| if (p->param_type == IOPARM_ptype_common) |
| var = fold_build3_loc (input_location, COMPONENT_REF, |
| st_parameter[IOPARM_ptype_common].type, |
| var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE); |
| |
| tmp = fold_build3_loc (input_location, COMPONENT_REF, dest_type, var, |
| p->field, NULL_TREE); |
| gfc_add_modify (block, tmp, se.expr); |
| return p->mask; |
| } |
| |
| |
| /* Build code to check the unit range if KIND=8 is used. Similar to |
| set_parameter_value_chk but we do not generate error calls for |
| inquire statements. */ |
| |
| static unsigned int |
| set_parameter_value_inquire (stmtblock_t *block, tree var, |
| enum iofield type, gfc_expr *e) |
| { |
| gfc_se se; |
| gfc_st_parameter_field *p = &st_parameter_field[type]; |
| tree dest_type = TREE_TYPE (p->field); |
| |
| gfc_init_se (&se, NULL); |
| gfc_conv_expr_val (&se, e); |
| |
| /* If we're inquiring on a UNIT number, we need to check to make |
| sure it exists for larger than kind = 4. */ |
| if (type == IOPARM_common_unit && e->ts.kind > 4) |
| { |
| stmtblock_t newblock; |
| tree cond1, cond2, cond3, val, body; |
| int i; |
| |
| /* Don't evaluate the UNIT number multiple times. */ |
| se.expr = gfc_evaluate_now (se.expr, &se.pre); |
| |
| /* UNIT numbers should be greater than the min. */ |
| i = gfc_validate_kind (BT_INTEGER, 4, false); |
| val = gfc_conv_mpz_to_tree (gfc_integer_kinds[i].pedantic_min_int, 4); |
| cond1 = build2_loc (input_location, LT_EXPR, logical_type_node, |
| se.expr, |
| fold_convert (TREE_TYPE (se.expr), val)); |
| /* UNIT numbers should be less than the max. */ |
| val = gfc_conv_mpz_to_tree (gfc_integer_kinds[i].huge, 4); |
| cond2 = build2_loc (input_location, GT_EXPR, logical_type_node, |
| se.expr, |
| fold_convert (TREE_TYPE (se.expr), val)); |
| cond3 = build2_loc (input_location, TRUTH_OR_EXPR, |
| logical_type_node, cond1, cond2); |
| |
| gfc_start_block (&newblock); |
| |
| /* The unit number GFC_INVALID_UNIT is reserved. No units can |
| ever have this value. It is used here to signal to the |
| runtime library that the inquire unit number is outside the |
| allowable range and so cannot exist. It is needed when |
| -fdefault-integer-8 is used. */ |
| set_parameter_const (&newblock, var, IOPARM_common_unit, |
| GFC_INVALID_UNIT); |
| |
| body = gfc_finish_block (&newblock); |
| |
| cond3 = gfc_unlikely (cond3, PRED_FORTRAN_FAIL_IO); |
| var = build3_v (COND_EXPR, cond3, body, build_empty_stmt (input_location)); |
| gfc_add_expr_to_block (&se.pre, var); |
| } |
| |
| se.expr = convert (dest_type, se.expr); |
| gfc_add_block_to_block (block, &se.pre); |
| |
| return p->mask; |
| } |
| |
| |
| /* Generate code to store a non-string I/O parameter into the |
| st_parameter_XXX structure. This is pass by reference. */ |
| |
| static unsigned int |
| set_parameter_ref (stmtblock_t *block, stmtblock_t *postblock, |
| tree var, enum iofield type, gfc_expr *e) |
| { |
| gfc_se se; |
| tree tmp, addr; |
| gfc_st_parameter_field *p = &st_parameter_field[type]; |
| |
| gcc_assert (e->ts.type == BT_INTEGER || e->ts.type == BT_LOGICAL); |
| gfc_init_se (&se, NULL); |
| gfc_conv_expr_lhs (&se, e); |
| |
| gfc_add_block_to_block (block, &se.pre); |
| |
| if (TYPE_MODE (TREE_TYPE (se.expr)) |
| == TYPE_MODE (TREE_TYPE (TREE_TYPE (p->field)))) |
| { |
| addr = convert (TREE_TYPE (p->field), gfc_build_addr_expr (NULL_TREE, se.expr)); |
| |
| /* If this is for the iostat variable initialize the |
| user variable to LIBERROR_OK which is zero. */ |
| if (type == IOPARM_common_iostat) |
| gfc_add_modify (block, se.expr, |
| build_int_cst (TREE_TYPE (se.expr), LIBERROR_OK)); |
| } |
| else |
| { |
| /* The type used by the library has different size |
| from the type of the variable supplied by the user. |
| Need to use a temporary. */ |
| tree tmpvar = gfc_create_var (TREE_TYPE (TREE_TYPE (p->field)), |
| st_parameter_field[type].name); |
| |
| /* If this is for the iostat variable, initialize the |
| user variable to LIBERROR_OK which is zero. */ |
| if (type == IOPARM_common_iostat) |
| gfc_add_modify (block, tmpvar, |
| build_int_cst (TREE_TYPE (tmpvar), LIBERROR_OK)); |
| |
| addr = gfc_build_addr_expr (NULL_TREE, tmpvar); |
| /* After the I/O operation, we set the variable from the temporary. */ |
| tmp = convert (TREE_TYPE (se.expr), tmpvar); |
| gfc_add_modify (postblock, se.expr, tmp); |
| } |
| |
| set_parameter_tree (block, var, type, addr); |
| return p->mask; |
| } |
| |
| /* Given an array expr, find its address and length to get a string. If the |
| array is full, the string's address is the address of array's first element |
| and the length is the size of the whole array. If it is an element, the |
| string's address is the element's address and the length is the rest size of |
| the array. */ |
| |
| static void |
| gfc_convert_array_to_string (gfc_se * se, gfc_expr * e) |
| { |
| tree size; |
| |
| if (e->rank == 0) |
| { |
| tree type, array, tmp; |
| gfc_symbol *sym; |
| int rank; |
| |
| /* If it is an element, we need its address and size of the rest. */ |
| gcc_assert (e->expr_type == EXPR_VARIABLE); |
| gcc_assert (e->ref->u.ar.type == AR_ELEMENT); |
| sym = e->symtree->n.sym; |
| rank = sym->as->rank - 1; |
| gfc_conv_expr (se, e); |
| |
| array = sym->backend_decl; |
| type = TREE_TYPE (array); |
| |
| if (GFC_ARRAY_TYPE_P (type)) |
| size = GFC_TYPE_ARRAY_SIZE (type); |
| else |
| { |
| gcc_assert (GFC_DESCRIPTOR_TYPE_P (type)); |
| size = gfc_conv_array_stride (array, rank); |
| tmp = fold_build2_loc (input_location, MINUS_EXPR, |
| gfc_array_index_type, |
| gfc_conv_array_ubound (array, rank), |
| gfc_conv_array_lbound (array, rank)); |
| tmp = fold_build2_loc (input_location, PLUS_EXPR, |
| gfc_array_index_type, tmp, |
| gfc_index_one_node); |
| size = fold_build2_loc (input_location, MULT_EXPR, |
| gfc_array_index_type, tmp, size); |
| } |
| gcc_assert (size); |
| |
| size = fold_build2_loc (input_location, MINUS_EXPR, |
| gfc_array_index_type, size, |
| TREE_OPERAND (se->expr, 1)); |
| se->expr = gfc_build_addr_expr (NULL_TREE, se->expr); |
| tmp = TYPE_SIZE_UNIT (gfc_get_element_type (type)); |
| size = fold_build2_loc (input_location, MULT_EXPR, |
| gfc_array_index_type, size, |
| fold_convert (gfc_array_index_type, tmp)); |
| se->string_length = fold_convert (gfc_charlen_type_node, size); |
| return; |
| } |
| |
| gfc_conv_array_parameter (se, e, true, NULL, NULL, &size); |
| se->string_length = fold_convert (gfc_charlen_type_node, size); |
| } |
| |
| |
| /* Generate code to store a string and its length into the |
| st_parameter_XXX structure. */ |
| |
| static unsigned int |
| set_string (stmtblock_t * block, stmtblock_t * postblock, tree var, |
| enum iofield type, gfc_expr * e) |
| { |
| gfc_se se; |
| tree tmp; |
| tree io; |
| tree len; |
| gfc_st_parameter_field *p = &st_parameter_field[type]; |
| |
| gfc_init_se (&se, NULL); |
| |
| if (p->param_type == IOPARM_ptype_common) |
| var = fold_build3_loc (input_location, COMPONENT_REF, |
| st_parameter[IOPARM_ptype_common].type, |
| var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE); |
| io = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (p->field), |
| var, p->field, NULL_TREE); |
| len = fold_build3_loc (input_location, COMPONENT_REF, |
| TREE_TYPE (p->field_len), |
| var, p->field_len, NULL_TREE); |
| |
| /* Integer variable assigned a format label. */ |
| if (e->ts.type == BT_INTEGER |
| && e->rank == 0 |
| && e->symtree->n.sym->attr.assign == 1) |
| { |
| char * msg; |
| tree cond; |
| |
| gfc_conv_label_variable (&se, e); |
| tmp = GFC_DECL_STRING_LEN (se.expr); |
| cond = fold_build2_loc (input_location, LT_EXPR, logical_type_node, |
| tmp, build_int_cst (TREE_TYPE (tmp), 0)); |
| |
| msg = xasprintf ("Label assigned to variable '%s' (%%ld) is not a format " |
| "label", e->symtree->name); |
| gfc_trans_runtime_check (true, false, cond, &se.pre, &e->where, msg, |
| fold_convert (long_integer_type_node, tmp)); |
| free (msg); |
| |
| gfc_add_modify (&se.pre, io, |
| fold_convert (TREE_TYPE (io), GFC_DECL_ASSIGN_ADDR (se.expr))); |
| gfc_add_modify (&se.pre, len, GFC_DECL_STRING_LEN (se.expr)); |
| } |
| else |
| { |
| /* General character. */ |
| if (e->ts.type == BT_CHARACTER && e->rank == 0) |
| gfc_conv_expr (&se, e); |
| /* Array assigned Hollerith constant or character array. */ |
| else if (e->rank > 0 || (e->symtree && e->symtree->n.sym->as->rank > 0)) |
| gfc_convert_array_to_string (&se, e); |
| else |
| gcc_unreachable (); |
| |
| gfc_conv_string_parameter (&se); |
| gfc_add_modify (&se.pre, io, fold_convert (TREE_TYPE (io), se.expr)); |
| gfc_add_modify (&se.pre, len, fold_convert (TREE_TYPE (len), |
| se.string_length)); |
| } |
| |
| gfc_add_block_to_block (block, &se.pre); |
| gfc_add_block_to_block (postblock, &se.post); |
| return p->mask; |
| } |
| |
| |
| /* Generate code to store the character (array) and the character length |
| for an internal unit. */ |
| |
| static unsigned int |
| set_internal_unit (stmtblock_t * block, stmtblock_t * post_block, |
| tree var, gfc_expr * e) |
| { |
| gfc_se se; |
| tree io; |
| tree len; |
| tree desc; |
| tree tmp; |
| gfc_st_parameter_field *p; |
| unsigned int mask; |
| |
| gfc_init_se (&se, NULL); |
| |
| p = &st_parameter_field[IOPARM_dt_internal_unit]; |
| mask = p->mask; |
| io = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (p->field), |
| var, p->field, NULL_TREE); |
| len = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (p->field_len), |
| var, p->field_len, NULL_TREE); |
| p = &st_parameter_field[IOPARM_dt_internal_unit_desc]; |
| desc = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (p->field), |
| var, p->field, NULL_TREE); |
| |
| gcc_assert (e->ts.type == BT_CHARACTER); |
| |
| /* Character scalars. */ |
| if (e->rank == 0) |
| { |
| gfc_conv_expr (&se, e); |
| gfc_conv_string_parameter (&se); |
| tmp = se.expr; |
| se.expr = build_int_cst (pchar_type_node, 0); |
| } |
| |
| /* Character array. */ |
| else if (e->rank > 0) |
| { |
| if (is_subref_array (e)) |
| { |
| /* Use a temporary for components of arrays of derived types |
| or substring array references. */ |
| gfc_conv_subref_array_arg (&se, e, 0, |
| last_dt == READ ? INTENT_IN : INTENT_OUT, false); |
| tmp = build_fold_indirect_ref_loc (input_location, |
| se.expr); |
| se.expr = gfc_build_addr_expr (pchar_type_node, tmp); |
| tmp = gfc_conv_descriptor_data_get (tmp); |
| } |
| else |
| { |
| /* Return the data pointer and rank from the descriptor. */ |
| gfc_conv_expr_descriptor (&se, e); |
| tmp = gfc_conv_descriptor_data_get (se.expr); |
| se.expr = gfc_build_addr_expr (pchar_type_node, se.expr); |
| } |
| } |
| else |
| gcc_unreachable (); |
| |
| /* The cast is needed for character substrings and the descriptor |
| data. */ |
| gfc_add_modify (&se.pre, io, fold_convert (TREE_TYPE (io), tmp)); |
| gfc_add_modify (&se.pre, len, |
| fold_convert (TREE_TYPE (len), se.string_length)); |
| gfc_add_modify (&se.pre, desc, se.expr); |
| |
| gfc_add_block_to_block (block, &se.pre); |
| gfc_add_block_to_block (post_block, &se.post); |
| return mask; |
| } |
| |
| /* 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 (integer_type_node, label_value); |
| |
| /* Make a backend label for this case. */ |
| tmp = gfc_build_label_decl (NULL_TREE); |
| |
| /* And the case itself. */ |
| tmp = build_case_label (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, tree var, gfc_st_label * err_label, |
| gfc_st_label * end_label, gfc_st_label * eor_label) |
| { |
| stmtblock_t body; |
| tree tmp, rc; |
| gfc_st_parameter_field *p = &st_parameter_field[IOPARM_common_flags]; |
| |
| /* 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); |
| |
| var = fold_build3_loc (input_location, COMPONENT_REF, |
| st_parameter[IOPARM_ptype_common].type, |
| var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE); |
| rc = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (p->field), |
| var, p->field, NULL_TREE); |
| rc = fold_build2_loc (input_location, BIT_AND_EXPR, TREE_TYPE (rc), |
| rc, build_int_cst (TREE_TYPE (rc), |
| IOPARM_common_libreturn_mask)); |
| |
| tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, rc, tmp); |
| |
| 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, tree var, locus * where) |
| { |
| gfc_file *f; |
| tree str, locus_file; |
| int line; |
| gfc_st_parameter_field *p = &st_parameter_field[IOPARM_common_filename]; |
| |
| locus_file = fold_build3_loc (input_location, COMPONENT_REF, |
| st_parameter[IOPARM_ptype_common].type, |
| var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE); |
| locus_file = fold_build3_loc (input_location, COMPONENT_REF, |
| TREE_TYPE (p->field), locus_file, |
| p->field, NULL_TREE); |
| f = where->lb->file; |
| str = gfc_build_cstring_const (f->filename); |
| |
| str = gfc_build_addr_expr (pchar_type_node, str); |
| gfc_add_modify (block, locus_file, str); |
| |
| line = LOCATION_LINE (where->lb->location); |
| set_parameter_const (block, var, IOPARM_common_line, line); |
| } |
| |
| |
| /* Translate an OPEN statement. */ |
| |
| tree |
| gfc_trans_open (gfc_code * code) |
| { |
| stmtblock_t block, post_block; |
| gfc_open *p; |
| tree tmp, var; |
| unsigned int mask = 0; |
| |
| gfc_start_block (&block); |
| gfc_init_block (&post_block); |
| |
| var = gfc_create_var (st_parameter[IOPARM_ptype_open].type, "open_parm"); |
| |
| set_error_locus (&block, var, &code->loc); |
| p = code->ext.open; |
| |
| if (p->iomsg) |
| mask |= set_string (&block, &post_block, var, IOPARM_common_iomsg, |
| p->iomsg); |
| |
| if (p->iostat) |
| mask |= set_parameter_ref (&block, &post_block, var, IOPARM_common_iostat, |
| p->iostat); |
| |
| if (p->err) |
| mask |= IOPARM_common_err; |
| |
| if (p->file) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_file, p->file); |
| |
| if (p->status) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_status, |
| p->status); |
| |
| if (p->access) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_access, |
| p->access); |
| |
| if (p->form) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_form, p->form); |
| |
| if (p->recl) |
| mask |= set_parameter_value (&block, var, IOPARM_open_recl_in, |
| p->recl); |
| |
| if (p->blank) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_blank, |
| p->blank); |
| |
| if (p->position) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_position, |
| p->position); |
| |
| if (p->action) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_action, |
| p->action); |
| |
| if (p->delim) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_delim, |
| p->delim); |
| |
| if (p->pad) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_pad, p->pad); |
| |
| if (p->decimal) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_decimal, |
| p->decimal); |
| |
| if (p->encoding) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_encoding, |
| p->encoding); |
| |
| if (p->round) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_round, p->round); |
| |
| if (p->sign) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_sign, p->sign); |
| |
| if (p->asynchronous) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_asynchronous, |
| p->asynchronous); |
| |
| if (p->convert) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_convert, |
| p->convert); |
| |
| if (p->newunit) |
| mask |= set_parameter_ref (&block, &post_block, var, IOPARM_open_newunit, |
| p->newunit); |
| |
| if (p->cc) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_cc, p->cc); |
| |
| if (p->share) |
| mask |= set_string (&block, &post_block, var, IOPARM_open_share, p->share); |
| |
| mask |= set_parameter_const (&block, var, IOPARM_open_readonly, p->readonly); |
| |
| set_parameter_const (&block, var, IOPARM_common_flags, mask); |
| |
| if (p->unit) |
| set_parameter_value_chk (&block, p->iostat, var, IOPARM_common_unit, p->unit); |
| else |
| set_parameter_const (&block, var, IOPARM_common_unit, 0); |
| |
| tmp = gfc_build_addr_expr (NULL_TREE, var); |
| tmp = build_call_expr_loc (input_location, |
| iocall[IOCALL_OPEN], 1, tmp); |
| gfc_add_expr_to_block (&block, tmp); |
| |
| gfc_add_block_to_block (&block, &post_block); |
| |
| io_result (&block, var, 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, var; |
| unsigned int mask = 0; |
| |
| gfc_start_block (&block); |
| gfc_init_block (&post_block); |
| |
| var = gfc_create_var (st_parameter[IOPARM_ptype_close].type, "close_parm"); |
| |
| set_error_locus (&block, var, &code->loc); |
| p = code->ext.close; |
| |
| if (p->iomsg) |
| mask |= set_string (&block, &post_block, var, IOPARM_common_iomsg, |
| p->iomsg); |
| |
| if (p->iostat) |
| mask |= set_parameter_ref (&block, &post_block, var, IOPARM_common_iostat, |
| p->iostat); |
| |
| if (p->err) |
| mask |= IOPARM_common_err; |
| |
| if (p->status) |
| mask |= set_string (&block, &post_block, var, IOPARM_close_status, |
| p->status); |
| |
| set_parameter_const (&block, var, IOPARM_common_flags, mask); |
| |
| if (p->unit) |
| set_parameter_value_chk (&block, p->iostat, var, IOPARM_common_unit, p->unit); |
| else |
| set_parameter_const (&block, var, IOPARM_common_unit, 0); |
| |
| tmp = gfc_build_addr_expr (NULL_TREE, var); |
| tmp = build_call_expr_loc (input_location, |
| iocall[IOCALL_CLOSE], 1, tmp); |
| gfc_add_expr_to_block (&block, tmp); |
| |
| gfc_add_block_to_block (&block, &post_block); |
| |
| io_result (&block, var, 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, post_block; |
| gfc_filepos *p; |
| tree tmp, var; |
| unsigned int mask = 0; |
| |
| p = code->ext.filepos; |
| |
| gfc_start_block (&block); |
| gfc_init_block (&post_block); |
| |
| var = gfc_create_var (st_parameter[IOPARM_ptype_filepos].type, |
| "filepos_parm"); |
| |
| set_error_locus (&block, var, &code->loc); |
| |
| if (p->iomsg) |
| mask |= set_string (&block, &post_block, var, IOPARM_common_iomsg, |
| p->iomsg); |
| |
| if (p->iostat) |
| mask |= set_parameter_ref (&block, &post_block, var, |
| IOPARM_common_iostat, p->iostat); |
| |
| if (p->err) |
| mask |= IOPARM_common_err; |
| |
| set_parameter_const (&block, var, IOPARM_common_flags, mask); |
| |
| if (p->unit) |
| set_parameter_value_chk (&block, p->iostat, var, IOPARM_common_unit, |
| p->unit); |
| else |
| set_parameter_const (&block, var, IOPARM_common_unit, 0); |
| |
| tmp = gfc_build_addr_expr (NULL_TREE, var); |
| tmp = build_call_expr_loc (input_location, |
| function, 1, tmp); |
| gfc_add_expr_to_block (&block, tmp); |
| |
| gfc_add_block_to_block (&block, &post_block); |
| |
| io_result (&block, var, p->err, NULL, NULL); |
| |
| return gfc_finish_block (&block); |
| } |
| |
| |
| /* Translate a BACKSPACE statement. */ |
| |
| tree |
| gfc_trans_backspace (gfc_code * code) |
| { |
| return build_filepos (iocall[IOCALL_BACKSPACE], code); |
| } |
| |
| |
| /* Translate an ENDFILE statement. */ |
| |
| tree |
| gfc_trans_endfile (gfc_code * code) |
| { |
| return build_filepos (iocall[IOCALL_ENDFILE], code); |
| } |
| |
| |
| /* Translate a REWIND statement. */ |
| |
| tree |
| gfc_trans_rewind (gfc_code * code) |
| { |
| return build_filepos (iocall[IOCALL_REWIND], code); |
| } |
| |
| |
| /* Translate a FLUSH statement. */ |
| |
| tree |
| gfc_trans_flush (gfc_code * code) |
| { |
| return build_filepos (iocall[IOCALL_FLUSH], 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, var; |
| unsigned int mask = 0, mask2 = 0; |
| |
| gfc_start_block (&block); |
| gfc_init_block (&post_block); |
| |
| var = gfc_create_var (st_parameter[IOPARM_ptype_inquire].type, |
| "inquire_parm"); |
| |
| set_error_locus (&block, var, &code->loc); |
| p = code->ext.inquire; |
| |
| if (p->iomsg) |
| mask |= set_string (&block, &post_block, var, IOPARM_common_iomsg, |
| p->iomsg); |
| |
| if (p->iostat) |
| mask |= set_parameter_ref (&block, &post_block, var, IOPARM_common_iostat, |
| p->iostat); |
| |
| if (p->err) |
| mask |= IOPARM_common_err; |
| |
| /* Sanity check. */ |
| if (p->unit && p->file) |
| gfc_error ("INQUIRE statement at %L cannot contain both FILE and UNIT specifiers", &code->loc); |
| |
| if (p->file) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_file, |
| p->file); |
| |
| if (p->exist) |
| mask |= set_parameter_ref (&block, &post_block, var, IOPARM_inquire_exist, |
| p->exist); |
| |
| if (p->opened) |
| mask |= set_parameter_ref (&block, &post_block, var, IOPARM_inquire_opened, |
| p->opened); |
| |
| if (p->number) |
| mask |= set_parameter_ref (&block, &post_block, var, IOPARM_inquire_number, |
| p->number); |
| |
| if (p->named) |
| mask |= set_parameter_ref (&block, &post_block, var, IOPARM_inquire_named, |
| p->named); |
| |
| if (p->name) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_name, |
| p->name); |
| |
| if (p->access) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_access, |
| p->access); |
| |
| if (p->sequential) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_sequential, |
| p->sequential); |
| |
| if (p->direct) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_direct, |
| p->direct); |
| |
| if (p->form) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_form, |
| p->form); |
| |
| if (p->formatted) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_formatted, |
| p->formatted); |
| |
| if (p->unformatted) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_unformatted, |
| p->unformatted); |
| |
| if (p->recl) |
| mask |= set_parameter_ref (&block, &post_block, var, |
| IOPARM_inquire_recl_out, p->recl); |
| |
| if (p->nextrec) |
| mask |= set_parameter_ref (&block, &post_block, var, |
| IOPARM_inquire_nextrec, p->nextrec); |
| |
| if (p->blank) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_blank, |
| p->blank); |
| |
| if (p->delim) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_delim, |
| p->delim); |
| |
| if (p->position) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_position, |
| p->position); |
| |
| if (p->action) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_action, |
| p->action); |
| |
| if (p->read) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_read, |
| p->read); |
| |
| if (p->write) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_write, |
| p->write); |
| |
| if (p->readwrite) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_readwrite, |
| p->readwrite); |
| |
| if (p->pad) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_pad, |
| p->pad); |
| |
| if (p->convert) |
| mask |= set_string (&block, &post_block, var, IOPARM_inquire_convert, |
| p->convert); |
| |
| if (p->strm_pos) |
| mask |= set_parameter_ref (&block, &post_block, var, |
| IOPARM_inquire_strm_pos_out, p->strm_pos); |
| |
| /* The second series of flags. */ |
| if (p->asynchronous) |
| mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_asynchronous, |
| p->asynchronous); |
| |
| if (p->decimal) |
| mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_decimal, |
| p->decimal); |
| |
| if (p->encoding) |
| mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_encoding, |
| p->encoding); |
| |
| if (p->round) |
| mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_round, |
| p->round); |
| |
| if (p->sign) |
| mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_sign, |
| p->sign); |
| |
| if (p->pending) |
| mask2 |= set_parameter_ref (&block, &post_block, var, |
| IOPARM_inquire_pending, p->pending); |
| |
| if (p->size) |
| mask2 |= set_parameter_ref (&block, &post_block, var, IOPARM_inquire_size, |
| p->size); |
| |
| if (p->id) |
| mask2 |= set_parameter_ref (&block, &post_block,var, IOPARM_inquire_id, |
| p->id); |
| if (p->iqstream) |
| mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_iqstream, |
| p->iqstream); |
| |
| if (p->share) |
| mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_share, |
| p->share); |
| |
| if (p->cc) |
| mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_cc, p->cc); |
| |
| if (mask2) |
| mask |= set_parameter_const (&block, var, IOPARM_inquire_flags2, mask2); |
| |
| set_parameter_const (&block, var, IOPARM_common_flags, mask); |
| |
| if (p->unit) |
| { |
| set_parameter_value (&block, var, IOPARM_common_unit, p->unit); |
| set_parameter_value_inquire (&block, var, IOPARM_common_unit, p->unit); |
| } |
| else |
| set_parameter_const (&block, var, IOPARM_common_unit, 0); |
| |
| tmp = gfc_build_addr_expr (NULL_TREE, var); |
| tmp = build_call_expr_loc (input_location, |
| iocall[IOCALL_INQUIRE], 1, tmp); |
| gfc_add_expr_to_block (&block, tmp); |
| |
| gfc_add_block_to_block (&block, &post_block); |
| |
| io_result (&block, var, p->err, NULL, NULL); |
| |
| return gfc_finish_block (&block); |
| } |
| |
| |
| tree |
| gfc_trans_wait (gfc_code * code) |
| { |
| stmtblock_t block, post_block; |
| gfc_wait *p; |
| tree tmp, var; |
| unsigned int mask = 0; |
| |
| gfc_start_block (&block); |
| gfc_init_block (&post_block); |
| |
| var = gfc_create_var (st_parameter[IOPARM_ptype_wait].type, |
| "wait_parm"); |
| |
| set_error_locus (&block, var, &code->loc); |
| p = code->ext.wait; |
| |
| /* Set parameters here. */ |
| if (p->iomsg) |
| mask |= set_string (&block, &post_block, var, IOPARM_common_iomsg, |
| p->iomsg); |
| |
| if (p->iostat) |
| mask |= set_parameter_ref (&block, &post_block, var, IOPARM_common_iostat, |
| p->iostat); |
| |
| if (p->err) |
| mask |= IOPARM_common_err; |
| |
| if (p->id) |
| mask |= set_parameter_ref (&block, &post_block, var, IOPARM_wait_id, p->id); |
| |
| set_parameter_const (&block, var, IOPARM_common_flags, mask); |
| |
| if (p->unit) |
| set_parameter_value_chk (&block, p->iostat, var, IOPARM_common_unit, p->unit); |
| |
| tmp = gfc_build_addr_expr (NULL_TREE, var); |
| tmp = build_call_expr_loc (input_location, |
| iocall[IOCALL_WAIT], 1, tmp); |
| gfc_add_expr_to_block (&block, tmp); |
| |
| gfc_add_block_to_block (&block, &post_block); |
| |
| io_result (&block, var, p->err, NULL, NULL); |
| |
| return gfc_finish_block (&block); |
| |
| } |
| |
| |
| /* nml_full_name builds up the fully qualified name of a |
| derived type component. '+' is used to denote a type extension. */ |
| |
| static char* |
| nml_full_name (const char* var_name, const char* cmp_name, bool parent) |
| { |
| int full_name_length; |
| char * full_name; |
| |
| full_name_length = strlen (var_name) + strlen (cmp_name) + 1; |
| full_name = XCNEWVEC (char, full_name_length + 1); |
| strcpy (full_name, var_name); |
| full_name = strcat (full_name, parent ? "+" : "%"); |
| 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; |
| |
| if (sym) |
| { |
| sym->attr.referenced = 1; |
| decl = gfc_get_symbol_decl (sym); |
| |
| /* If this is the enclosing function declaration, use |
| the fake result instead. */ |
| if (decl == current_function_decl) |
| decl = gfc_get_fake_result_decl (sym, 0); |
| else if (decl == DECL_CONTEXT (current_function_decl)) |
| decl = gfc_get_fake_result_decl (sym, 1); |
| } |
| else |
| decl = c->backend_decl; |
| |
| gcc_assert (decl && (TREE_CODE (decl) == FIELD_DECL |
| || VAR_P (decl) |
| || TREE_CODE (decl) == PARM_DECL |
| || TREE_CODE (decl) == COMPONENT_REF)); |
| |
| tmp = decl; |
| |
| /* Build indirect reference, if dummy argument. */ |
| |
| if (POINTER_TYPE_P (TREE_TYPE(tmp))) |
| tmp = build_fold_indirect_ref_loc (input_location, tmp); |
| |
| /* Treat the component of a derived type, using base_addr for |
| the derived type. */ |
| |
| if (TREE_CODE (decl) == FIELD_DECL) |
| tmp = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (tmp), |
| base_addr, tmp, NULL_TREE); |
| |
| if (GFC_CLASS_TYPE_P (TREE_TYPE (tmp)) |
| && GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_class_data_get (tmp)))) |
| tmp = gfc_class_data_get (tmp); |
| |
| if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (tmp))) |
| tmp = gfc_conv_array_data (tmp); |
| else |
| { |
| if (!POINTER_TYPE_P (TREE_TYPE (tmp))) |
| tmp = gfc_build_addr_expr (NULL_TREE, tmp); |
| |
| if (TREE_CODE (TREE_TYPE (tmp)) == ARRAY_TYPE) |
| tmp = gfc_build_array_ref (tmp, gfc_index_zero_node, NULL); |
| |
| if (!POINTER_TYPE_P (TREE_TYPE (tmp))) |
| tmp = build_fold_indirect_ref_loc (input_location, |
| 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[IOCALL_SET_NML_VAL]. For derived type variable, recursively |
| generate calls to iocall[IOCALL_SET_NML_VAL] for each component. */ |
| |
| #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 dtype; |
| tree dt_parm_addr; |
| tree decl = NULL_TREE; |
| tree gfc_int4_type_node = gfc_get_int_type (4); |
| tree dtio_proc = null_pointer_node; |
| tree vtable = null_pointer_node; |
| int n_dim; |
| 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; |
| |
| if (ts->type != BT_CLASS) |
| as = sym ? sym->as : c->as; |
| else |
| as = sym ? CLASS_DATA (sym)->as : CLASS_DATA (c)->as; |
| |
| addr_expr = nml_get_addr_expr (sym, c, base_addr); |
| |
| if (as) |
| rank = as->rank; |
| |
| if (rank) |
| { |
| decl = sym ? sym->backend_decl : c->backend_decl; |
| if (sym && sym->attr.dummy) |
| decl = build_fold_indirect_ref_loc (input_location, decl); |
| |
| if (ts->type == BT_CLASS) |
| decl = gfc_class_data_get (decl); |
| dt = TREE_TYPE (decl); |
| dtype = gfc_get_dtype (dt); |
| } |
| else |
| { |
| dt = gfc_typenode_for_spec (ts); |
| dtype = gfc_get_dtype_rank_type (0, dt); |
| } |
| |
| /* Build up the arguments for the transfer call. |
| The call for the scalar part transfers: |
| (address, name, type, kind or string_length, dtype) */ |
| |
| dt_parm_addr = gfc_build_addr_expr (NULL_TREE, dt_parm); |
| |
| /* Check if the derived type has a specific DTIO for the mode. |
| Note that although namelist io is forbidden to have a format |
| list, the specific subroutine is of the formatted kind. */ |
| if (ts->type == BT_DERIVED || ts->type == BT_CLASS) |
| { |
| gfc_symbol *derived; |
| if (ts->type==BT_CLASS) |
| derived = ts->u.derived->components->ts.u.derived; |
| else |
| derived = ts->u.derived; |
| |
| gfc_symtree *tb_io_st = gfc_find_typebound_dtio_proc (derived, |
| last_dt == WRITE, true); |
| |
| if (ts->type == BT_CLASS && tb_io_st) |
| { |
| // polymorphic DTIO call (based on the dynamic type) |
| gfc_se se; |
| gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name); |
| // build vtable expr |
| gfc_expr *expr = gfc_get_variable_expr (st); |
| gfc_add_vptr_component (expr); |
| gfc_init_se (&se, NULL); |
| se.want_pointer = 1; |
| gfc_conv_expr (&se, expr); |
| vtable = se.expr; |
| // build dtio expr |
| gfc_add_component_ref (expr, |
| tb_io_st->n.tb->u.generic->specific_st->name); |
| gfc_init_se (&se, NULL); |
| se.want_pointer = 1; |
| gfc_conv_expr (&se, expr); |
| gfc_free_expr (expr); |
| dtio_proc = se.expr; |
| } |
| else |
| { |
| // non-polymorphic DTIO call (based on the declared type) |
| gfc_symbol *dtio_sub = gfc_find_specific_dtio_proc (derived, |
| last_dt == WRITE, true); |
| if (dtio_sub != NULL) |
| { |
| dtio_proc = gfc_get_symbol_decl (dtio_sub); |
| dtio_proc = gfc_build_addr_expr (NULL, dtio_proc); |
| gfc_symbol *vtab = gfc_find_derived_vtab (derived); |
| vtable = vtab->backend_decl; |
| if (vtable == NULL_TREE) |
| vtable = gfc_get_symbol_decl (vtab); |
| vtable = gfc_build_addr_expr (pvoid_type_node, vtable); |
| } |
| } |
| } |
| |
| if (ts->type == BT_CHARACTER) |
| tmp = ts->u.cl->backend_decl; |
| else |
| tmp = build_int_cst (gfc_charlen_type_node, 0); |
| |
| if (dtio_proc == null_pointer_node) |
| tmp = build_call_expr_loc (input_location, |
| iocall[IOCALL_SET_NML_VAL], 6, |
| dt_parm_addr, addr_expr, string, |
| build_int_cst (gfc_int4_type_node, ts->kind), |
| tmp, dtype); |
| else |
| tmp = build_call_expr_loc (input_location, |
| iocall[IOCALL_SET_NML_DTIO_VAL], 8, |
| dt_parm_addr, addr_expr, string, |
| build_int_cst (gfc_int4_type_node, ts->kind), |
| tmp, dtype, dtio_proc, vtable); |
| 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++ ) |
| { |
| tmp = build_call_expr_loc (input_location, |
| iocall[IOCALL_SET_NML_VAL_DIM], 5, |
| dt_parm_addr, |
| build_int_cst (gfc_int4_type_node, n_dim), |
| gfc_conv_array_stride (decl, n_dim), |
| gfc_conv_array_lbound (decl, n_dim), |
| gfc_conv_array_ubound (decl, n_dim)); |
| gfc_add_expr_to_block (block, tmp); |
| } |
| |
| if (gfc_bt_struct (ts->type) && ts->u.derived->components |
| && dtio_proc == null_pointer_node) |
| { |
| gfc_component *cmp; |
| |
| /* Provide the RECORD_TYPE to build component references. */ |
| |
| tree expr = build_fold_indirect_ref_loc (input_location, |
| addr_expr); |
| |
| for (cmp = ts->u.derived->components; cmp; cmp = cmp->next) |
| { |
| char *full_name = nml_full_name (var_name, cmp->name, |
| ts->u.derived->attr.extension); |
| transfer_namelist_element (block, |
| full_name, |
| NULL, cmp, expr); |
| free (full_name); |
| } |
| } |
| } |
| |
| #undef IARG |
| |
| /* 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, post_end_block, post_iu_block; |
| gfc_dt *dt; |
| tree tmp, var; |
| gfc_expr *nmlname; |
| gfc_namelist *nml; |
| unsigned int mask = 0; |
| |
| gfc_start_block (&block); |
| gfc_init_block (&post_block); |
| gfc_init_block (&post_end_block); |
| gfc_init_block (&post_iu_block); |
| |
| var = gfc_create_var (st_parameter[IOPARM_ptype_dt].type, "dt_parm"); |
| |
| set_error_locus (&block, var, &code->loc); |
| |
| if (last_dt == IOLENGTH) |
| { |
| gfc_inquire *inq; |
| |
| inq = code->ext.inquire; |
| |
| /* First check that preconditions are met. */ |
| gcc_assert (inq != NULL); |
| gcc_assert (inq->iolength != NULL); |
| |
| /* Connect to the iolength variable. */ |
| mask |= set_parameter_ref (&block, &post_end_block, var, |
| IOPARM_dt_iolength, inq->iolength); |
| dt = NULL; |
| } |
| else |
| { |
| dt = code->ext.dt; |
| gcc_assert (dt != NULL); |
| } |
| |
| if (dt && dt->io_unit) |
| { |
| if (dt->io_unit->ts.type == BT_CHARACTER) |
| { |
| mask |= set_internal_unit (&block, &post_iu_block, |
| var, dt->io_unit); |
| set_parameter_const (&block, var, IOPARM_common_unit, |
| dt->io_unit->ts.kind == 1 ? |
| GFC_INTERNAL_UNIT : GFC_INTERNAL_UNIT4); |
| } |
| } |
| else |
| set_parameter_const (&block, var, IOPARM_common_unit, 0); |
| |
| if (dt) |
| { |
| if (dt->iomsg) |
| mask |= set_string (&block, &post_block, var, IOPARM_common_iomsg, |
| dt->iomsg); |
| |
| if (dt->iostat) |
| mask |= set_parameter_ref (&block, &post_end_block, var, |
| IOPARM_common_iostat, dt->iostat); |
| |
| if (dt->err) |
| mask |= IOPARM_common_err; |
| |
| if (dt->eor) |
| mask |= IOPARM_common_eor; |
| |
| if (dt->end) |
| mask |= IOPARM_common_end; |
| |
| if (dt->id) |
| mask |= set_parameter_ref (&block, &post_end_block, var, |
| IOPARM_dt_id, dt->id); |
| |
| if (dt->pos) |
| mask |= set_parameter_value (&block, var, IOPARM_dt_pos, dt->pos); |
| |
| if (dt->asynchronous) |
| mask |= set_string (&block, &post_block, var, |
| IOPARM_dt_asynchronous, dt->asynchronous); |
| |
| if (dt->blank) |
| mask |= set_string (&block, &post_block, var, IOPARM_dt_blank, |
| dt->blank); |
| |
| if (dt->decimal) |
| mask |= set_string (&block, &post_block, var, IOPARM_dt_decimal, |
| dt->decimal); |
| |
| if (dt->delim) |
| mask |= set_string (&block, &post_block, var, IOPARM_dt_delim, |
| dt->delim); |
| |
| if (dt->pad) |
| mask |= set_string (&block, &post_block, var, IOPARM_dt_pad, |
| dt->pad); |
| |
| if (dt->round) |
| mask |= set_string (&block, &post_block, var, IOPARM_dt_round, |
| dt->round); |
| |
| if (dt->sign) |
| mask |= set_string (&block, &post_block, var, IOPARM_dt_sign, |
| dt->sign); |
| |
| if (dt->rec) |
| mask |= set_parameter_value (&block, var, IOPARM_dt_rec, dt->rec); |
| |
| if (dt->advance) |
| mask |= set_string (&block, &post_block, var, IOPARM_dt_advance, |
| dt->advance); |
| |
| if (dt->format_expr) |
| mask |= set_string (&block, &post_end_block, var, IOPARM_dt_format, |
| dt->format_expr); |
| |
| if (dt->format_label) |
| { |
| if (dt->format_label == &format_asterisk) |
| mask |= IOPARM_dt_list_format; |
| else |
| mask |= set_string (&block, &post_block, var, IOPARM_dt_format, |
| dt->format_label->format); |
| } |
| |
| if (dt->size) |
| mask |= set_parameter_ref (&block, &post_end_block, var, |
| IOPARM_dt_size, dt->size); |
| |
| if (dt->udtio) |
| mask |= IOPARM_dt_dtio; |
| |
| if (dt->dec_ext) |
| mask |= IOPARM_dt_dec_ext; |
| |
| if (dt->namelist) |
| { |
| if (dt->format_expr || dt->format_label) |
| gfc_internal_error ("build_dt: format with namelist"); |
| |
| nmlname = gfc_get_character_expr (gfc_default_character_kind, NULL, |
| dt->namelist->name, |
| strlen (dt->namelist->name)); |
| |
| mask |= set_string (&block, &post_block, var, IOPARM_dt_namelist_name, |
| nmlname); |
| |
| gfc_free_expr (nmlname); |
| |
| if (last_dt == READ) |
| mask |= IOPARM_dt_namelist_read_mode; |
| |
| set_parameter_const (&block, var, IOPARM_common_flags, mask); |
| |
| dt_parm = var; |
| |
| for (nml = dt->namelist->namelist; nml; nml = nml->next) |
| transfer_namelist_element (&block, nml->sym->name, nml->sym, |
| NULL, NULL_TREE); |
| } |
| else |
| set_parameter_const (&block, var, IOPARM_common_flags, mask); |
| |
| if (dt->io_unit && dt->io_unit->ts.type == BT_INTEGER) |
| set_parameter_value_chk (&block, dt->iostat, var, |
| IOPARM_common_unit, dt->io_unit); |
| } |
| else |
| set_parameter_const (&block, var, IOPARM_common_flags, mask); |
| |
| tmp = gfc_build_addr_expr (NULL_TREE, var); |
| tmp = build_call_expr_loc (UNKNOWN_LOCATION, |
| function, 1, tmp); |
| gfc_add_expr_to_block (&block, tmp); |
| |
| gfc_add_block_to_block (&block, &post_block); |
| |
| dt_parm = var; |
| dt_post_end_block = &post_end_block; |
| |
| /* Set implied do loop exit condition. */ |
| if (last_dt == READ || last_dt == WRITE) |
| { |
| gfc_st_parameter_field *p = &st_parameter_field[IOPARM_common_flags]; |
| |
| tmp = fold_build3_loc (input_location, COMPONENT_REF, |
| st_parameter[IOPARM_ptype_common].type, |
| dt_parm, TYPE_FIELDS (TREE_TYPE (dt_parm)), |
| NULL_TREE); |
| tmp = fold_build3_loc (input_location, COMPONENT_REF, |
| TREE_TYPE (p->field), tmp, p->field, NULL_TREE); |
| tmp = fold_build2_loc (input_location, BIT_AND_EXPR, TREE_TYPE (tmp), |
| tmp, build_int_cst (TREE_TYPE (tmp), |
| IOPARM_common_libreturn_mask)); |
| } |
| else /* IOLENGTH */ |
| tmp = NULL_TREE; |
| |
| gfc_add_expr_to_block (&block, gfc_trans_code_cond (code->block->next, tmp)); |
| |
| gfc_add_block_to_block (&block, &post_iu_block); |
| |
| dt_parm = NULL; |
| dt_post_end_block = NULL; |
| |
| 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) |
| { |
| last_dt = IOLENGTH; |
| return build_dt (iocall[IOCALL_IOLENGTH], code); |
| } |
| |
| |
| /* Translate a READ statement. */ |
| |
| tree |
| gfc_trans_read (gfc_code * code) |
| { |
| last_dt = READ; |
| return build_dt (iocall[IOCALL_READ], code); |
| } |
| |
| |
| /* Translate a WRITE statement */ |
| |
| tree |
| gfc_trans_write (gfc_code * code) |
| { |
| last_dt = WRITE; |
| return build_dt (iocall[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[IOCALL_READ_DONE]; |
| break; |
| |
| case WRITE: |
| function = iocall[IOCALL_WRITE_DONE]; |
| break; |
| |
| case IOLENGTH: |
| function = iocall[IOCALL_IOLENGTH_DONE]; |
| break; |
| |
| default: |
| gcc_unreachable (); |
| } |
| |
| tmp = gfc_build_addr_expr (NULL_TREE, dt_parm); |
| tmp = build_call_expr_loc (input_location, |
| function, 1, tmp); |
| gfc_add_expr_to_block (&block, tmp); |
| gfc_add_block_to_block (&block, dt_post_end_block); |
| gfc_init_block (dt_post_end_block); |
| |
| if (last_dt != IOLENGTH) |
| { |
| gcc_assert (code->ext.dt != NULL); |
| io_result (&block, dt_parm, 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, |
| gfc_code * code, tree vptr); |
| |
| /* 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, locus * where) |
| { |
| tree tmp; |
| stmtblock_t body; |
| stmtblock_t block; |
| gfc_loopinfo loop; |
| int n; |
| gfc_ss *ss; |
| gfc_se se; |
| gfc_array_info *ss_array; |
| |
| 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_array_ss (gfc_ss_terminator, NULL, cm->as->rank, |
| GFC_SS_COMPONENT); |
| ss_array = &ss->info->data.array; |
| |
| if (cm->attr.pdt_array) |
| ss_array->shape = NULL; |
| else |
| ss_array->shape = gfc_get_shape (cm->as->rank); |
| |
| ss_array->descriptor = expr; |
| ss_array->data = gfc_conv_array_data (expr); |
| ss_array->offset = gfc_conv_array_offset (expr); |
| for (n = 0; n < cm->as->rank; n++) |
| { |
| ss_array->start[n] = gfc_conv_array_lbound (expr, n); |
| ss_array->stride[n] = gfc_index_one_node; |
| |
| if (cm->attr.pdt_array) |
| ss_array->end[n] = gfc_conv_array_ubound (expr, n); |
| else |
| { |
| mpz_init (ss_array->shape[n]); |
| mpz_sub (ss_array->shape[n], cm->as->upper[n]->value.integer, |
| cm->as->lower[n]->value.integer); |
| mpz_add_ui (ss_array->shape[n], ss_array->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, where); |
| 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_TREE, se.expr); |
| transfer_expr (&se, &cm->ts, tmp, NULL, NULL_TREE); |
| |
| /* 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); |
| |
| if (!cm->attr.pdt_array) |
| { |
| gcc_assert (ss_array->shape != NULL); |
| gfc_free_shape (&ss_array->shape, cm->as->rank); |
| } |
| gfc_cleanup_loop (&loop); |
| |
| return gfc_finish_block (&block); |
| } |
| |
| |
| /* Helper function for transfer_expr that looks for the DTIO procedure |
| either as a typebound binding or in a generic interface. If present, |
| the address expression of the procedure is returned. It is assumed |
| that the procedure interface has been checked during resolution. */ |
| |
| static tree |
| get_dtio_proc (gfc_typespec * ts, gfc_code * code, gfc_symbol **dtio_sub) |
| { |
| gfc_symbol *derived; |
| bool formatted = false; |
| gfc_dt *dt = code->ext.dt; |
| |
| /* Determine when to use the formatted DTIO procedure. */ |
| if (dt && (dt->format_expr || dt->format_label)) |
| formatted = true; |
| |
| if (ts->type == BT_CLASS) |
| derived = ts->u.derived->components->ts.u.derived; |
| else |
| derived = ts->u.derived; |
| |
| gfc_symtree *tb_io_st = gfc_find_typebound_dtio_proc (derived, |
| last_dt == WRITE, formatted); |
| if (ts->type == BT_CLASS && tb_io_st) |
| { |
| // polymorphic DTIO call (based on the dynamic type) |
| gfc_se se; |
| gfc_expr *expr = gfc_find_and_cut_at_last_class_ref (code->expr1); |
| gfc_add_vptr_component (expr); |
| gfc_add_component_ref (expr, |
| tb_io_st->n.tb->u.generic->specific_st->name); |
| *dtio_sub = tb_io_st->n.tb->u.generic->specific->u.specific->n.sym; |
| gfc_init_se (&se, NULL); |
| se.want_pointer = 1; |
| gfc_conv_expr (&se, expr); |
| gfc_free_expr (expr); |
| return se.expr; |
| } |
| else |
| { |
| // non-polymorphic DTIO call (based on the declared type) |
| *dtio_sub = gfc_find_specific_dtio_proc (derived, last_dt == WRITE, |
| formatted); |
| |
| if (*dtio_sub) |
| return gfc_build_addr_expr (NULL, gfc_get_symbol_decl (*dtio_sub)); |
| } |
| |
| return NULL_TREE; |
| } |
| |
| /* Generate the call for a scalar transfer node. */ |
| |
| static void |
| transfer_expr (gfc_se * se, gfc_typespec * ts, tree addr_expr, |
| gfc_code * code, tree vptr) |
| { |
| tree tmp, function, arg2, arg3, field, expr; |
| gfc_component *c; |
| int kind; |
| |
| /* It is possible to get a C_NULL_PTR or C_NULL_FUNPTR expression here if |
| the user says something like: print *, 'c_null_ptr: ', c_null_ptr |
| We need to translate the expression to a constant if it's either |
| C_NULL_PTR or C_NULL_FUNPTR. We could also get a user variable of |
| type C_PTR or C_FUNPTR, in which case the ts->type may no longer be |
| BT_DERIVED (could have been changed by gfc_conv_expr). */ |
| if ((ts->type == BT_DERIVED || ts->type == BT_INTEGER) |
| && ts->u.derived != NULL |
| && (ts->is_iso_c == 1 || ts->u.derived->ts.is_iso_c == 1)) |
| { |
| ts->type = BT_INTEGER; |
| ts->kind = gfc_index_integer_kind; |
| } |
| |
| /* gfortran reaches here for "print *, c_loc(xxx)". */ |
| if (ts->type == BT_VOID |
| && code->expr1 && code->expr1->ts.type == BT_VOID |
| && code->expr1->symtree |
| && strcmp (code->expr1->symtree->name, "c_loc") == 0) |
| { |
| ts->type = BT_INTEGER; |
| ts->kind = gfc_index_integer_kind; |
| } |
| |
| kind = ts->kind; |
| function = NULL; |
| arg2 = NULL; |
| arg3 = NULL; |
| |
| switch (ts->type) |
| { |
| case BT_INTEGER: |
| arg2 = build_int_cst (integer_type_node, kind); |
| if (last_dt == READ) |
| function = iocall[IOCALL_X_INTEGER]; |
| else |
| function = iocall[IOCALL_X_INTEGER_WRITE]; |
| |
| break; |
| |
| case BT_REAL: |
| arg2 = build_int_cst (integer_type_node, kind); |
| if (last_dt == READ) |
| { |
| if (gfc_real16_is_float128 && ts->kind == 16) |
| function = iocall[IOCALL_X_REAL128]; |
| else |
| function = iocall[IOCALL_X_REAL]; |
| } |
| else |
| { |
| if (gfc_real16_is_float128 && ts->kind == 16) |
| function = iocall[IOCALL_X_REAL128_WRITE]; |
| else |
| function = iocall[IOCALL_X_REAL_WRITE]; |
| } |
| |
| break; |
| |
| case BT_COMPLEX: |
| arg2 = build_int_cst (integer_type_node, kind); |
| if (last_dt == READ) |
| { |
| if (gfc_real16_is_float128 && ts->kind == 16) |
| function = iocall[IOCALL_X_COMPLEX128]; |
| else |
| function = iocall[IOCALL_X_COMPLEX]; |
| } |
| else |
| { |
| if (gfc_real16_is_float128 && ts->kind == 16) |
| function = iocall[IOCALL_X_COMPLEX128_WRITE]; |
| else |
| function = iocall[IOCALL_X_COMPLEX_WRITE]; |
| } |
| |
| break; |
| |
| case BT_LOGICAL: |
| arg2 = build_int_cst (integer_type_node, kind); |
| if (last_dt == READ) |
| function = iocall[IOCALL_X_LOGICAL]; |
| else |
| function = iocall[IOCALL_X_LOGICAL_WRITE]; |
| |
| break; |
| |
| case BT_CHARACTER: |
| if (kind == 4) |
| { |
| if (se->string_length) |
| arg2 = se->string_length; |
| else |
| { |
| tmp = build_fold_indirect_ref_loc (input_location, |
| addr_expr); |
| gcc_assert (TREE_CODE (TREE_TYPE (tmp)) == ARRAY_TYPE); |
| arg2 = TYPE_MAX_VALUE (TYPE_DOMAIN (TREE_TYPE (tmp))); |
| arg2 = fold_convert (gfc_charlen_type_node, arg2); |
| } |
| arg3 = build_int_cst (integer_type_node, kind); |
| if (last_dt == READ) |
| function = iocall[IOCALL_X_CHARACTER_WIDE]; |
| else |
| function = iocall[IOCALL_X_CHARACTER_WIDE_WRITE]; |
| |
| tmp = gfc_build_addr_expr (NULL_TREE, dt_parm); |
| tmp = build_call_expr_loc (input_location, |
| function, 4, tmp, addr_expr, arg2, arg3); |
| gfc_add_expr_to_block (&se->pre, tmp); |
| gfc_add_block_to_block (&se->pre, &se->post); |
| return; |
| } |
| /* Fall through. */ |
| case BT_HOLLERITH: |
| if (se->string_length) |
| arg2 = se->string_length; |
| else |
| { |
| tmp = build_fold_indirect_ref_loc (input_location, |
| addr_expr); |
| gcc_assert (TREE_CODE (TREE_TYPE (tmp)) == ARRAY_TYPE); |
| arg2 = TYPE_MAX_VALUE (TYPE_DOMAIN (TREE_TYPE (tmp))); |
| } |
| if (last_dt == READ) |
| function = iocall[IOCALL_X_CHARACTER]; |
| else |
| function = iocall[IOCALL_X_CHARACTER_WRITE]; |
| |
| break; |
| |
| case_bt_struct: |
| case BT_CLASS: |
| if (gfc_bt_struct (ts->type) || ts->type == BT_CLASS) |
| { |
| gfc_symbol *derived; |
| gfc_symbol *dtio_sub = NULL; |
| /* Test for a specific DTIO subroutine. */ |
| if (ts->type == BT_DERIVED) |
| derived = ts->u.derived; |
| else |
| derived = ts->u.derived->components->ts.u.derived; |
| |
| if (derived->attr.has_dtio_procs) |
| arg2 = get_dtio_proc (ts, code, &dtio_sub); |
| |
| if ((dtio_sub != NULL) && (last_dt != IOLENGTH)) |
| { |
| tree decl; |
| decl = build_fold_indirect_ref_loc (input_location, |
| se->expr); |
| /* Remember that the first dummy of the DTIO subroutines |
| is CLASS(derived) for extensible derived types, so the |
| conversion must be done here for derived type and for |
| scalarized CLASS array element io-list objects. */ |
| if ((ts->type == BT_DERIVED |
| && !(ts->u.derived->attr.sequence |
| || ts->u.derived->attr.is_bind_c)) |
| || (ts->type == BT_CLASS |
| && !GFC_CLASS_TYPE_P (TREE_TYPE (decl)))) |
| gfc_conv_derived_to_class (se, code->expr1, |
| dtio_sub->formal->sym->ts, |
| vptr, false, false); |
| addr_expr = se->expr; |
| function = iocall[IOCALL_X_DERIVED]; |
| break; |
| } |
| else if (gfc_bt_struct (ts->type)) |
| { |
| /* Recurse into the elements of the derived type. */ |
| expr = gfc_evaluate_now (addr_expr, &se->pre); |
| expr = build_fold_indirect_ref_loc (input_location, expr); |
| |
| /* Make sure that the derived type has been built. An external |
| function, if only referenced in an io statement, requires this |
| check (see PR58771). */ |
| if (ts->u.derived->backend_decl == NULL_TREE) |
| (void) gfc_typenode_for_spec (ts); |
| |
| for (c = ts->u.derived->components; c; c = c->next) |
| { |
| /* Ignore hidden string lengths. */ |
| if (c->name[0] == '_') |
| continue; |
| |
| field = c->backend_decl; |
| gcc_assert (field && TREE_CODE (field) == FIELD_DECL); |
| |
| tmp = fold_build3_loc (UNKNOWN_LOCATION, |
| COMPONENT_REF, TREE_TYPE (field), |
| expr, field, NULL_TREE); |
| |
| if (c->attr.dimension) |
| { |
| tmp = transfer_array_component (tmp, c, & code->loc); |
| gfc_add_expr_to_block (&se->pre, tmp); |
| } |
| else |
| { |
| tree strlen = NULL_TREE; |
| |
| if (!c->attr.pointer && !c->attr.pdt_string) |
| tmp = gfc_build_addr_expr (NULL_TREE, tmp); |
| |
| /* Use the hidden string length for pdt strings. */ |
| if (c->attr.pdt_string |
| && gfc_deferred_strlen (c, &strlen) |
| && strlen != NULL_TREE) |
| { |
| strlen = fold_build3_loc (UNKNOWN_LOCATION, |
| COMPONENT_REF, |
| TREE_TYPE (strlen), |
| expr, strlen, NULL_TREE); |
| se->string_length = strlen; |
| } |
| |
| transfer_expr (se, &c->ts, tmp, code, NULL_TREE); |
| |
| /* Reset so that the pdt string length does not propagate |
| through to other strings. */ |
| if (c->attr.pdt_string && strlen) |
| se->string_length = NULL_TREE; |
| } |
| } |
| return; |
| } |
| /* If a CLASS object gets through to here, fall through and ICE. */ |
| } |
| gcc_fallthrough (); |
| default: |
| gfc_internal_error ("Bad IO basetype (%d)", ts->type); |
| } |
| |
| tmp = gfc_build_addr_expr (NULL_TREE, dt_parm); |
| tmp = build_call_expr_loc (input_location, |
| function, 3, tmp, addr_expr, arg2); |
| gfc_add_expr_to_block (&se->pre, tmp); |
| gfc_add_block_to_block (&se->pre, &se->post); |
| |
| } |
| |
| |
| /* Generate a call to pass an array descriptor to the IO library. The |
| array should be of one of the intrinsic types. */ |
| |
| static void |
| transfer_array_desc (gfc_se * se, gfc_typespec * ts, tree addr_expr) |
| { |
| tree tmp, charlen_arg, kind_arg, io_call; |
| |
| if (ts->type == BT_CHARACTER) |
| charlen_arg = se->string_length; |
| else |
| charlen_arg = build_int_cst (gfc_charlen_type_node, 0); |
| |
| kind_arg = build_int_cst (integer_type_node, ts->kind); |
| |
| tmp = gfc_build_addr_expr (NULL_TREE, dt_parm); |
| if (last_dt == READ) |
| io_call = iocall[IOCALL_X_ARRAY]; |
| else |
| io_call = iocall[IOCALL_X_ARRAY_WRITE]; |
| |
| tmp = build_call_expr_loc (UNKNOWN_LOCATION, |
| io_call, 4, |
| tmp, addr_expr, kind_arg, charlen_arg); |
| 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_ref *ref; |
| gfc_ss *ss; |
| gfc_se se; |
| tree tmp; |
| tree vptr; |
| int n; |
| |
| gfc_start_block (&block); |
| gfc_init_block (&body); |
| |
| expr = code->expr1; |
| ref = NULL; |
| gfc_init_se (&se, NULL); |
| |
| if (expr->rank == 0) |
| { |
| /* Transfer a scalar value. */ |
| if (expr->ts.type == BT_CLASS) |
| { |
| se.want_pointer = 1; |
| gfc_conv_expr (&se, expr); |
| vptr = gfc_get_vptr_from_expr (se.expr); |
| } |
| else |
| { |
| vptr = NULL_TREE; |
| gfc_conv_expr_reference (&se, expr); |
| } |
| transfer_expr (&se, &expr->ts, se.expr, code, vptr); |
| } |
| else |
| { |
| /* Transfer an array. If it is an array of an intrinsic |
| type, pass the descriptor to the library. Otherwise |
| scalarize the transfer. */ |
| if (expr->ref && !gfc_is_proc_ptr_comp (expr)) |
| { |
| for (ref = expr->ref; ref && ref->type != REF_ARRAY; |
| ref = ref->next); |
| gcc_assert (ref && ref->type == REF_ARRAY); |
| } |
| |
| if (expr->ts.type != BT_CLASS |
| && expr->expr_type == EXPR_VARIABLE |
| && gfc_expr_attr (expr).pointer) |
| goto scalarize; |
| |
| |
| if (!(gfc_bt_struct (expr->ts.type) |
| || expr->ts.type == BT_CLASS) |
| && ref && ref->next == NULL |
| && !is_subref_array (expr)) |
| { |
| bool seen_vector = false; |
| |
| if (ref && ref->u.ar.type == AR_SECTION) |
| { |
| for (n = 0; n < ref->u.ar.dimen; n++) |
| if (ref->u.ar.dimen_type[n] == DIMEN_VECTOR) |
| { |
| seen_vector = true; |
| break; |
| } |
| } |
| |
| if (seen_vector && last_dt == READ) |
| { |
| /* Create a temp, read to that and copy it back. */ |
| gfc_conv_subref_array_arg (&se, expr, 0, INTENT_OUT, false); |
| tmp = se.expr; |
| } |
| else |
| { |
| /* Get the descriptor. */ |
| gfc_conv_expr_descriptor (&se, expr); |
| tmp = gfc_build_addr_expr (NULL_TREE, se.expr); |
| } |
| |
| transfer_array_desc (&se, &expr->ts, tmp); |
| goto finish_block_label; |
| } |
| |
| scalarize: |
| /* Initialize the scalarizer. */ |
| ss = gfc_walk_expr (expr); |
| gfc_init_loopinfo (&loop); |
| gfc_add_ss_to_loop (&loop, ss); |
| |
| /* Initialize the loop. */ |
| gfc_conv_ss_startstride (&loop); |
| gfc_conv_loop_setup (&loop, &code->expr1->where); |
| |
| /* 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); |
| |
| if (expr->ts.type == BT_CLASS) |
| vptr = gfc_get_vptr_from_expr (ss->info->data.array.descriptor); |
| else |
| vptr = NULL_TREE; |
| transfer_expr (&se, &expr->ts, se.expr, code, vptr); |
| } |
| |
| finish_block_label: |
| |
| 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 (expr->rank != 0); |
| 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" |