/* Header for code translation functions
- Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 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
+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
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. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#ifndef GFC_TRANS_H
#define GFC_TRANS_H
/* Ignore absent optional arguments. Used for some intrinsics. */
unsigned ignore_optional:1;
+ /* When this is set the data and offset fields of the returned descriptor
+ are NULL. Used by intrinsic size. */
+ unsigned data_not_needed:1;
+
+ /* If set, gfc_conv_function_call does not put byref calls into se->pre. */
+ unsigned no_function_call:1;
+
/* Scalarization parameters. */
struct gfc_se *parent;
struct gfc_ss *ss;
start is used in the calculation of these. Indexed by scalarizer
dimension. */
tree start[GFC_MAX_DIMENSIONS];
+ tree end[GFC_MAX_DIMENSIONS];
tree stride[GFC_MAX_DIMENSIONS];
tree delta[GFC_MAX_DIMENSIONS];
uses this temporary inside the scalarization loop. */
GFC_SS_CONSTRUCTOR,
- /* A vector subscript. Only used as the SS chain for a subscript.
- Similar int format to a GFC_SS_SECTION. */
+ /* A vector subscript. The vector's descriptor is cached in the
+ "descriptor" field of the associated gfc_ss_info. */
GFC_SS_VECTOR,
/* A temporary array allocated by the scalarizer. Its rank can be less
/* Advance the SS chain to the next term. */
void gfc_advance_se_ss_chain (gfc_se *);
-/* Call this to initialise a gfc_se structure before use
- first parameter is structure to initialise, second is
+/* Call this to initialize a gfc_se structure before use
+ first parameter is structure to initialize, second is
parent to get scalarization data from, or NULL. */
void gfc_init_se (gfc_se *, gfc_se *);
/* Makes sure se is suitable for passing as a function string parameter. */
void gfc_conv_string_parameter (gfc_se * se);
+/* Compare two strings. */
+tree gfc_build_compare_string (tree, tree, tree, tree);
+
/* Add an item to the end of TREE_LIST. */
tree gfc_chainon_list (tree, tree);
/* When using the gfc_conv_* make sure you understand what they do, i.e.
- when a POST chain may be created, and what the retured expression may be
+ when a POST chain may be created, and what the returned expression may be
used for. Note that character strings have special handling. This
should not be a problem as most statements/operations only deal with
- numeric/logical types. */
+ numeric/logical types. See the implementations in trans-expr.c
+ for details of the individual functions. */
-/* Entry point for expression translation. */
void gfc_conv_expr (gfc_se * se, gfc_expr * expr);
-/* Like gfc_conv_expr, but the POST block is guaranteed to be empty for
- numeric expressions. */
void gfc_conv_expr_val (gfc_se * se, gfc_expr * expr);
-/* Like gfc_conv_expr_val, but the value is also suitable for use in the lhs of
- an assignment. */
void gfc_conv_expr_lhs (gfc_se * se, gfc_expr * expr);
-/* Converts an expression so that it can be passed be reference. */
void gfc_conv_expr_reference (gfc_se * se, gfc_expr *);
-/* Equivalent to convert(type, gfc_conv_expr_val(se, expr)). */
void gfc_conv_expr_type (gfc_se * se, gfc_expr *, tree);
+
+/* trans-expr.c */
+void gfc_conv_scalar_char_value (gfc_symbol *sym, gfc_se *se, gfc_expr **expr);
+
/* Find the decl containing the auxiliary variables for assigned variables. */
void gfc_conv_label_variable (gfc_se * se, gfc_expr * expr);
/* If the value is not constant, Create a temporary and copy the value. */
/* Does an intrinsic map directly to an external library call. */
int gfc_is_intrinsic_libcall (gfc_expr *);
+/* Used to call the elemental subroutines used in operator assignments. */
+tree gfc_conv_operator_assign (gfc_se *, gfc_se *, gfc_symbol *);
+
/* Also used to CALL subroutines. */
-void gfc_conv_function_call (gfc_se *, gfc_symbol *, gfc_actual_arglist *);
+int gfc_conv_function_call (gfc_se *, gfc_symbol *, gfc_actual_arglist *,
+ tree);
+
+void gfc_conv_subref_array_arg (gfc_se *, gfc_expr *, int, sym_intent);
+
/* gfc_trans_* shouldn't call push/poplevel, use gfc_push/pop_scope */
/* Generate code for a scalar assignment. */
-tree gfc_trans_scalar_assign (gfc_se *, gfc_se *, bt);
+tree gfc_trans_scalar_assign (gfc_se *, gfc_se *, gfc_typespec, bool, bool);
/* Translate COMMON blocks. */
void gfc_trans_common (gfc_namespace *);
/* Return an expression which determines if a dummy parameter is present. */
tree gfc_conv_expr_present (gfc_symbol *);
+/* Convert a missing, dummy argument into a null or zero. */
+void gfc_conv_missing_dummy (gfc_se *, gfc_expr *, gfc_typespec, int);
/* Generate code to allocate a string temporary. */
tree gfc_conv_string_tmp (gfc_se *, tree, tree);
/* Get the string length variable belonging to an expression. */
tree gfc_get_expr_charlen (gfc_expr *);
/* Initialize a string length variable. */
-void gfc_trans_init_string_length (gfc_charlen *, stmtblock_t *);
+void gfc_conv_string_length (gfc_charlen *, stmtblock_t *);
+/* Ensure type sizes can be gimplified. */
+void gfc_trans_vla_type_sizes (gfc_symbol *, stmtblock_t *);
/* Add an expression to the end of a block. */
void gfc_add_expr_to_block (stmtblock_t *, tree);
/* Add a block to the end of a block. */
void gfc_add_block_to_block (stmtblock_t *, stmtblock_t *);
-/* Add a MODIFY_EXPR to a block. */
-void gfc_add_modify_expr (stmtblock_t *, tree, tree);
+/* Add a MODIFY_EXPR or a GIMPLE_MODIFY_STMT to a block. */
+void gfc_add_modify (stmtblock_t *, tree, tree, bool);
+#define gfc_add_modify_expr(BLOCK, LHS, RHS) \
+ gfc_add_modify ((BLOCK), (LHS), (RHS), false)
+#define gfc_add_modify_stmt(BLOCK, LHS, RHS) \
+ gfc_add_modify ((BLOCK), (LHS), (RHS), true)
/* Initialize a statement block. */
void gfc_init_block (stmtblock_t *);
-/* Start a new satement block. Like gfc_init_block but also starts a new
+/* Start a new statement block. Like gfc_init_block but also starts a new
variable scope. */
void gfc_start_block (stmtblock_t *);
/* Finish a statement block. Also closes the scope if the block was created
/* Return the decl for a function. */
tree gfc_get_function_decl (gfc_symbol *);
-/* Build a CALL_EXPR. */
-tree gfc_build_function_call (tree, tree);
-
/* Build an ADDR_EXPR. */
tree gfc_build_addr_expr (tree, tree);
-/* Build an INDIRECT_REF. */
-tree gfc_build_indirect_ref (tree);
-
/* Build an ARRAY_REF. */
-tree gfc_build_array_ref (tree, tree);
+tree gfc_build_array_ref (tree, tree, tree);
-/* Creates an label. Decl is artificial if label_id == NULL_TREE. */
+/* Creates a label. Decl is artificial if label_id == NULL_TREE. */
tree gfc_build_label_decl (tree);
/* Return the decl used to hold the function return value.
Do not use if the function has an explicit result variable. */
-tree gfc_get_fake_result_decl (gfc_symbol *);
+tree gfc_get_fake_result_decl (gfc_symbol *, int);
/* Get the return label for the current function. */
tree gfc_get_return_label (void);
/* Returns true if a variable of specified size should go on the stack. */
int gfc_can_put_var_on_stack (tree);
-/* Allocate the lang-spcific part of a decl node. */
+/* Allocate the lang-specific part of a decl node. */
void gfc_allocate_lang_decl (tree);
/* Advance along a TREE_CHAIN. */
extern GTY(()) tree gfc_static_ctors;
void gfc_generate_constructors (void);
+/* Get the string length of an array constructor. */
+bool get_array_ctor_strlen (stmtblock_t *, gfc_constructor *, tree *);
+
/* Generate a runtime error check. */
-void gfc_trans_runtime_check (tree, tree, stmtblock_t *);
+void gfc_trans_runtime_check (tree, stmtblock_t *, locus *, const char *, ...);
+
+/* Generate a call to free() after checking that its arg is non-NULL. */
+tree gfc_call_free (tree);
+
+/* Allocate memory after performing a few checks. */
+tree gfc_call_malloc (stmtblock_t *, tree, tree);
+
+/* Allocate memory for arrays, with optional status variable. */
+tree gfc_allocate_array_with_status (stmtblock_t *, tree, tree, tree);
+
+/* Allocate memory, with optional status variable. */
+tree gfc_allocate_with_status (stmtblock_t *, tree, tree);
+
+/* Generate code to deallocate an array. */
+tree gfc_deallocate_with_status (tree, tree, bool);
+
+/* Generate code to call realloc(). */
+tree gfc_call_realloc (stmtblock_t *, tree, tree);
/* Generate code for an assignment, includes scalarization. */
-tree gfc_trans_assignment (gfc_expr *, gfc_expr *);
+tree gfc_trans_assignment (gfc_expr *, gfc_expr *, bool);
-/* Generate code for an pointer assignment. */
+/* Generate code for a pointer assignment. */
tree gfc_trans_pointer_assignment (gfc_expr *, gfc_expr *);
/* Initialize function decls for library functions. */
void gfc_build_intrinsic_lib_fndecls (void);
/* Create function decls for IO library functions. */
+void gfc_trans_io_runtime_check (tree, tree, int, const char *, stmtblock_t *);
void gfc_build_io_library_fndecls (void);
/* Build a function decl for a library function. */
tree gfc_build_library_function_decl (tree, tree, int, ...);
tree poplevel (int, int, int);
tree getdecls (void);
tree gfc_truthvalue_conversion (tree);
-tree builtin_function (const char *, tree, int, enum built_in_class,
- const char *, tree);
+tree gfc_builtin_function (tree);
+struct array_descr_info;
+bool gfc_get_array_descr_info (const_tree, struct array_descr_info *);
+
+/* In trans-openmp.c */
+bool gfc_omp_privatize_by_reference (const_tree);
+enum omp_clause_default_kind gfc_omp_predetermined_sharing (tree);
+tree gfc_omp_clause_default_ctor (tree, tree);
+bool gfc_omp_disregard_value_expr (tree, bool);
+bool gfc_omp_private_debug_clause (tree, bool);
+struct gimplify_omp_ctx;
+void gfc_omp_firstprivatize_type_sizes (struct gimplify_omp_ctx *, tree);
/* Runtime library function decls. */
-extern GTY(()) tree gfor_fndecl_internal_malloc;
-extern GTY(()) tree gfor_fndecl_internal_malloc64;
-extern GTY(()) tree gfor_fndecl_internal_free;
-extern GTY(()) tree gfor_fndecl_allocate;
-extern GTY(()) tree gfor_fndecl_allocate64;
-extern GTY(()) tree gfor_fndecl_deallocate;
extern GTY(()) tree gfor_fndecl_pause_numeric;
extern GTY(()) tree gfor_fndecl_pause_string;
extern GTY(()) tree gfor_fndecl_stop_numeric;
extern GTY(()) tree gfor_fndecl_stop_string;
extern GTY(()) tree gfor_fndecl_select_string;
extern GTY(()) tree gfor_fndecl_runtime_error;
+extern GTY(()) tree gfor_fndecl_runtime_error_at;
+extern GTY(()) tree gfor_fndecl_os_error;
+extern GTY(()) tree gfor_fndecl_generate_error;
+extern GTY(()) tree gfor_fndecl_set_fpe;
+extern GTY(()) tree gfor_fndecl_set_options;
+extern GTY(()) tree gfor_fndecl_ttynam;
+extern GTY(()) tree gfor_fndecl_ctime;
+extern GTY(()) tree gfor_fndecl_fdate;
extern GTY(()) tree gfor_fndecl_in_pack;
extern GTY(()) tree gfor_fndecl_in_unpack;
extern GTY(()) tree gfor_fndecl_associated;
}
gfc_powdecl_list;
-extern GTY(()) gfc_powdecl_list gfor_fndecl_math_powi[3][2];
+extern GTY(()) gfc_powdecl_list gfor_fndecl_math_powi[4][3];
extern GTY(()) tree gfor_fndecl_math_cpowf;
extern GTY(()) tree gfor_fndecl_math_cpow;
+extern GTY(()) tree gfor_fndecl_math_cpowl10;
+extern GTY(()) tree gfor_fndecl_math_cpowl16;
extern GTY(()) tree gfor_fndecl_math_ishftc4;
extern GTY(()) tree gfor_fndecl_math_ishftc8;
+extern GTY(()) tree gfor_fndecl_math_ishftc16;
extern GTY(()) tree gfor_fndecl_math_exponent4;
extern GTY(()) tree gfor_fndecl_math_exponent8;
+extern GTY(()) tree gfor_fndecl_math_exponent10;
+extern GTY(()) tree gfor_fndecl_math_exponent16;
+
+/* BLAS functions. */
+extern GTY(()) tree gfor_fndecl_sgemm;
+extern GTY(()) tree gfor_fndecl_dgemm;
+extern GTY(()) tree gfor_fndecl_cgemm;
+extern GTY(()) tree gfor_fndecl_zgemm;
/* String functions. */
-extern GTY(()) tree gfor_fndecl_copy_string;
extern GTY(()) tree gfor_fndecl_compare_string;
extern GTY(()) tree gfor_fndecl_concat_string;
extern GTY(()) tree gfor_fndecl_string_len_trim;
extern GTY(()) tree gfor_fndecl_string_scan;
extern GTY(()) tree gfor_fndecl_string_verify;
extern GTY(()) tree gfor_fndecl_string_trim;
-extern GTY(()) tree gfor_fndecl_string_repeat;
+extern GTY(()) tree gfor_fndecl_string_minmax;
extern GTY(()) tree gfor_fndecl_adjustl;
extern GTY(()) tree gfor_fndecl_adjustr;
/* G95-specific declaration information. */
+enum gfc_array_kind
+{
+ GFC_ARRAY_UNKNOWN,
+ GFC_ARRAY_ASSUMED_SHAPE,
+ GFC_ARRAY_ALLOCATABLE,
+ GFC_ARRAY_POINTER
+};
+
/* Array types only. */
struct lang_type GTY(())
{
int rank;
+ enum gfc_array_kind akind;
tree lbound[GFC_MAX_DIMENSIONS];
tree ubound[GFC_MAX_DIMENSIONS];
tree stride[GFC_MAX_DIMENSIONS];
address of target label. */
tree stringlen;
tree addr;
+ tree span;
};
#define GFC_DECL_ASSIGN_ADDR(node) DECL_LANG_SPECIFIC(node)->addr
#define GFC_DECL_STRING_LEN(node) DECL_LANG_SPECIFIC(node)->stringlen
+#define GFC_DECL_SPAN(node) DECL_LANG_SPECIFIC(node)->span
#define GFC_DECL_SAVED_DESCRIPTOR(node) \
(DECL_LANG_SPECIFIC(node)->saved_descriptor)
#define GFC_DECL_PACKED_ARRAY(node) DECL_LANG_FLAG_0(node)
#define GFC_DECL_PARTIAL_PACKED_ARRAY(node) DECL_LANG_FLAG_1(node)
#define GFC_DECL_ASSIGN(node) DECL_LANG_FLAG_2(node)
+#define GFC_DECL_COMMON_OR_EQUIV(node) DECL_LANG_FLAG_3(node)
+#define GFC_DECL_CRAY_POINTEE(node) DECL_LANG_FLAG_4(node)
+#define GFC_DECL_RESULT(node) DECL_LANG_FLAG_5(node)
+#define GFC_DECL_SUBREF_ARRAY_P(node) DECL_LANG_FLAG_6(node)
/* An array descriptor. */
#define GFC_DESCRIPTOR_TYPE_P(node) TYPE_LANG_FLAG_1(node)
/* An array without a descriptor. */
#define GFC_ARRAY_TYPE_P(node) TYPE_LANG_FLAG_2(node)
+/* Fortran POINTER type. */
+#define GFC_POINTER_TYPE_P(node) TYPE_LANG_FLAG_3(node)
/* The GFC_TYPE_ARRAY_* members are present in both descriptor and
descriptorless array types. */
#define GFC_TYPE_ARRAY_LBOUND(node, dim) \
#define GFC_TYPE_ARRAY_RANK(node) (TYPE_LANG_SPECIFIC(node)->rank)
#define GFC_TYPE_ARRAY_SIZE(node) (TYPE_LANG_SPECIFIC(node)->size)
#define GFC_TYPE_ARRAY_OFFSET(node) (TYPE_LANG_SPECIFIC(node)->offset)
-/* Code should use gfc_get_dtype instead of accesig this directly. It may
+#define GFC_TYPE_ARRAY_AKIND(node) (TYPE_LANG_SPECIFIC(node)->akind)
+/* Code should use gfc_get_dtype instead of accesing this directly. It may
not be known when the type is created. */
#define GFC_TYPE_ARRAY_DTYPE(node) (TYPE_LANG_SPECIFIC(node)->dtype)
#define GFC_TYPE_ARRAY_DATAPTR_TYPE(node) \
(TYPE_LANG_SPECIFIC(node)->dataptr_type)
-/* I changed this from sorry(...) because it should not return. */
-/* TODO: Remove gfc_todo_error before releasing version 1.0. */
-#define gfc_todo_error(args...) fatal_error("gfc_todo: Not Implemented: " args)
-
/* Build an expression with void type. */
-#define build1_v(code, arg) build(code, void_type_node, arg)
+#define build1_v(code, arg) build1(code, void_type_node, arg)
#define build2_v(code, arg1, arg2) build2(code, void_type_node, \
arg1, arg2)
#define build3_v(code, arg1, arg2, arg3) build3(code, void_type_node, \
arg1, arg2, arg3)
+#define build4_v(code, arg1, arg2, arg3, arg4) build4(code, void_type_node, \
+ arg1, arg2, arg3, arg4)
+
+/* This group of functions allows a caller to evaluate an expression from
+ the callee's interface. It establishes a mapping between the interface's
+ dummy arguments and the caller's actual arguments, then applies that
+ mapping to a given gfc_expr.
+
+ You can initialize a mapping structure like so:
+
+ gfc_interface_mapping mapping;
+ ...
+ gfc_init_interface_mapping (&mapping);
+
+ You should then evaluate each actual argument into a temporary
+ gfc_se structure, here called "se", and map the result to the
+ dummy argument's symbol, here called "sym":
+
+ gfc_add_interface_mapping (&mapping, sym, &se);
+
+ After adding all mappings, you should call:
+
+ gfc_finish_interface_mapping (&mapping, pre, post);
+
+ where "pre" and "post" are statement blocks for initialization
+ and finalization code respectively. You can then evaluate an
+ interface expression "expr" as follows:
+
+ gfc_apply_interface_mapping (&mapping, se, expr);
+
+ Once you've evaluated all expressions, you should free
+ the mapping structure with:
+
+ gfc_free_interface_mapping (&mapping); */
+
+
+/* This structure represents a mapping from OLD to NEW, where OLD is a
+ dummy argument symbol and NEW is a symbol that represents the value
+ of an actual argument. Mappings are linked together using NEXT
+ (in no particular order). */
+typedef struct gfc_interface_sym_mapping
+{
+ struct gfc_interface_sym_mapping *next;
+ gfc_symbol *old;
+ gfc_symtree *new;
+}
+gfc_interface_sym_mapping;
+
+
+/* This structure is used by callers to evaluate an expression from
+ a callee's interface. */
+typedef struct gfc_interface_mapping
+{
+ /* Maps the interface's dummy arguments to the values that the caller
+ is passing. The whole list is owned by this gfc_interface_mapping. */
+ gfc_interface_sym_mapping *syms;
+
+ /* A list of gfc_charlens that were needed when creating copies of
+ expressions. The whole list is owned by this gfc_interface_mapping. */
+ gfc_charlen *charlens;
+}
+gfc_interface_mapping;
+
+void gfc_init_interface_mapping (gfc_interface_mapping *);
+void gfc_free_interface_mapping (gfc_interface_mapping *);
+void gfc_add_interface_mapping (gfc_interface_mapping *,
+ gfc_symbol *, gfc_se *);
+void gfc_finish_interface_mapping (gfc_interface_mapping *,
+ stmtblock_t *, stmtblock_t *);
+void gfc_apply_interface_mapping (gfc_interface_mapping *,
+ gfc_se *, gfc_expr *);
+
+
+/* Standard error messages used in all the trans-*.c files. */
+extern const char gfc_msg_bounds[];
+extern const char gfc_msg_fault[];
+extern const char gfc_msg_wrong_return[];
+
-/* flag for alternative return labels. */
-extern int has_alternate_specifier; /* for caller */
#endif /* GFC_TRANS_H */
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