/* Header for code translation functions
- Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+ Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
Contributed by Paul Brook
pointer assignments. */
unsigned direct_byref:1;
+ /* If direct_byref is set, do work out the descriptor as in that case but
+ do still create a new descriptor variable instead of using an
+ existing one. This is useful for special pointer assignments like
+ rank remapping where we have to process the descriptor before
+ assigning to final one. */
+ unsigned byref_noassign:1;
+
/* Ignore absent optional arguments. Used for some intrinsics. */
unsigned ignore_optional:1;
/* If set, gfc_conv_procedure_call does not put byref calls into se->pre. */
unsigned no_function_call:1;
+ /* If set, we will force the creation of a temporary. Useful to disable
+ non-copying procedure argument passing optimizations, when some function
+ args alias. */
+ unsigned force_tmp:1;
+
+ unsigned want_coarray:1;
+
/* Scalarization parameters. */
struct gfc_se *parent;
struct gfc_ss *ss;
gfc_se;
-/* Scalarization State chain. Created by walking an expression tree before
- creating the scalarization loops. Then passed as part of a gfc_se structure
- to translate the expression inside the loop. Note that these chains are
- terminated by gfc_se_terminator, not NULL. A NULL pointer in a gfc_se
- indicates to gfc_conv_* that this is a scalar expression.
- Note that some member arrays correspond to scalarizer rank and others
- are the variable rank. */
+/* Denotes different types of coarray.
+ Please keep in sync with libgfortran/caf/libcaf.h. */
+typedef enum
+{
+ GFC_CAF_COARRAY_STATIC,
+ GFC_CAF_COARRAY_ALLOC,
+ GFC_CAF_LOCK,
+ GFC_CAF_LOCK_COMP
+}
+gfc_coarray_type;
+
+
+/* The array-specific scalarization informations. The array members of
+ this struct are indexed by actual array index, and thus can be sparse. */
-typedef struct gfc_ss_info
+typedef struct gfc_array_info
{
- int dimen;
/* The ref that holds information on this section. */
gfc_ref *ref;
/* The descriptor of this array. */
tree end[GFC_MAX_DIMENSIONS];
tree stride[GFC_MAX_DIMENSIONS];
tree delta[GFC_MAX_DIMENSIONS];
-
- /* Translation from loop dimensions to actual dimensions.
- actual_dim = dim[loop_dim] */
- int dim[GFC_MAX_DIMENSIONS];
}
-gfc_ss_info;
+gfc_array_info;
typedef enum
{
}
gfc_ss_type;
-/* SS structures can only belong to a single loopinfo. They must be added
+
+/* Scalarization State chain. Created by walking an expression tree before
+ creating the scalarization loops. Then passed as part of a gfc_se structure
+ to translate the expression inside the loop. Note that these chains are
+ terminated by gfc_ss_terminator, not NULL. A NULL pointer in a gfc_se
+ indicates to gfc_conv_* that this is a scalar expression.
+ SS structures can only belong to a single loopinfo. They must be added
otherwise they will not get freed. */
+
typedef struct gfc_ss
{
gfc_ss_type type;
/* GFC_SS_TEMP. */
struct
{
- /* The rank of the temporary. May be less than the rank of the
- assigned expression. */
- int dimen;
tree type;
}
temp;
/* All other types. */
- gfc_ss_info info;
+ gfc_array_info info;
}
data;
+ int dimen;
+ /* Translation from loop dimensions to actual array dimensions.
+ actual_dim = dim[loop_dim] */
+ int dim[GFC_MAX_DIMENSIONS];
+
/* All the SS in a loop and linked through loop_chain. The SS for an
expression are linked by the next pointer. */
struct gfc_ss *loop_chain;
loops the terms appear in. This will be 1 for the RHS expressions,
2 for the LHS expressions, and 3(=1|2) for the temporary. The bit
'where' suppresses precalculation of scalars in WHERE assignments. */
- unsigned useflags:2, where:1;
+ unsigned useflags:2, where:1, is_alloc_lhs:1;
}
gfc_ss;
#define gfc_get_ss() XCNEW (gfc_ss)
/* Order in which the dimensions should be looped, innermost first. */
int order[GFC_MAX_DIMENSIONS];
+ /* Enum to control loop reversal. */
+ gfc_reverse reverse[GFC_MAX_DIMENSIONS];
+
/* The number of dimensions for which a temporary is used. */
int temp_dim;
/* Compare two strings. */
tree gfc_build_compare_string (tree, tree, tree, tree, int, enum tree_code);
-/* 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 returned expression may be
used for. Note that character strings have special handling. This
/* 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. */
+tree gfc_evaluate_now_loc (location_t, tree, stmtblock_t *);
tree gfc_evaluate_now (tree, stmtblock_t *);
-/* Intrinsic function handling. */
+/* Find the appropriate variant of a math intrinsic. */
+tree gfc_builtin_decl_for_float_kind (enum built_in_function, int);
+
+/* Intrinsic procedure handling. */
+tree gfc_conv_intrinsic_subroutine (gfc_code *);
void gfc_conv_intrinsic_function (gfc_se *, gfc_expr *);
-/* Does an intrinsic map directly to an external library call. */
+/* Is the intrinsic expanded inline. */
+bool gfc_inline_intrinsic_function_p (gfc_expr *);
+
+/* Does an intrinsic map directly to an external library call
+ This is true for array-returning intrinsics, unless
+ gfc_inline_intrinsic_function_p returns true. */
int gfc_is_intrinsic_libcall (gfc_expr *);
/* Used to call ordinary functions/subroutines
/* Add an expression to the end of a block. */
void gfc_add_expr_to_block (stmtblock_t *, tree);
+/* Add an expression to the beginning of a block. */
+void gfc_prepend_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_loc (location_t, stmtblock_t *, tree, tree);
void gfc_add_modify (stmtblock_t *, tree, tree);
/* Initialize a statement block. */
Do not use if the function has an explicit result variable. */
tree gfc_get_fake_result_decl (gfc_symbol *, int);
-/* Get the return label for the current function. */
-tree gfc_get_return_label (void);
-
/* Add a decl to the binding level for the current function. */
void gfc_add_decl_to_function (tree);
/* Set the backend source location of a decl. */
void gfc_set_decl_location (tree, locus *);
+/* Get a module symbol backend_decl if possible. */
+bool gfc_get_module_backend_decl (gfc_symbol *);
+
/* Return the variable decl for a symbol. */
tree gfc_get_symbol_decl (gfc_symbol *);
/* Build a static initializer. */
-tree gfc_conv_initializer (gfc_expr *, gfc_typespec *, tree, bool, bool);
+tree gfc_conv_initializer (gfc_expr *, gfc_typespec *, tree, bool, bool, bool);
/* Assign a default initializer to a derived type. */
void gfc_init_default_dt (gfc_symbol *, stmtblock_t *, bool);
tree gfc_advance_chain (tree, int);
/* Create a decl for a function. */
-void gfc_create_function_decl (gfc_namespace *);
+void gfc_create_function_decl (gfc_namespace *, bool);
/* Generate the code for a function. */
void gfc_generate_function_code (gfc_namespace *);
/* Output a BLOCK DATA program unit. */
void gfc_generate_block_data (gfc_namespace *);
/* Output a decl for a module variable. */
void gfc_generate_module_vars (gfc_namespace *);
+/* Get the appropriate return statement for a procedure. */
+tree gfc_generate_return (void);
struct GTY(()) module_htab_entry {
const char *name;
void gfc_module_add_decl (struct module_htab_entry *, tree);
/* Get and set the current location. */
+void gfc_save_backend_locus (locus *);
void gfc_set_backend_locus (locus *);
-void gfc_get_backend_locus (locus *);
+void gfc_restore_backend_locus (locus *);
/* Handle static constructor functions. */
extern GTY(()) tree gfc_static_ctors;
/* Get the string length of an array constructor. */
bool get_array_ctor_strlen (stmtblock_t *, gfc_constructor_base, tree *);
+/* Mark a condition as likely or unlikely. */
+tree gfc_likely (tree);
+tree gfc_unlikely (tree);
+
/* Generate a runtime error call. */
tree gfc_trans_runtime_error (bool, locus*, const char*, ...);
-tree gfc_trans_runtime_error_vararg (bool, locus*, const char*, va_list);
/* Generate a runtime warning/error check. */
void gfc_trans_runtime_check (bool, bool, tree, stmtblock_t *, locus *,
/* Build a memcpy call. */
tree gfc_build_memcpy_call (tree, tree, tree);
-/* Allocate memory for arrays, with optional status variable. */
-tree gfc_allocate_array_with_status (stmtblock_t*, tree, tree, tree, gfc_expr*);
+/* Allocate memory for allocatable variables, with optional status variable. */
+void gfc_allocate_allocatable (stmtblock_t*, tree, tree, tree,
+ tree, tree, tree, gfc_expr*);
/* Allocate memory, with optional status variable. */
-tree gfc_allocate_with_status (stmtblock_t *, tree, tree);
+void gfc_allocate_using_malloc (stmtblock_t *, tree, tree, tree);
/* Generate code to deallocate an array. */
tree gfc_deallocate_with_status (tree, tree, bool, gfc_expr*);
+tree gfc_deallocate_scalar_with_status (tree, tree, bool, gfc_expr*, gfc_typespec);
/* Generate code to call realloc(). */
tree gfc_call_realloc (stmtblock_t *, tree, tree);
/* Generate code for a pointer assignment. */
tree gfc_trans_pointer_assignment (gfc_expr *, gfc_expr *);
-/* Generate code to assign typebound procedures to a derived vtab. */
-void gfc_trans_assign_vtab_procs (stmtblock_t*, gfc_symbol*, gfc_symbol*);
-
/* Initialize function decls for library functions. */
void gfc_build_intrinsic_lib_fndecls (void);
/* Create function decls for IO library functions. */
void gfc_process_block_locals (gfc_namespace*);
/* Output initialization/clean-up code that was deferred. */
-tree gfc_trans_deferred_vars (gfc_symbol*, tree);
+void gfc_trans_deferred_vars (gfc_symbol*, gfc_wrapped_block *);
-/* somewhere! */
+/* In f95-lang.c. */
tree pushdecl (tree);
tree pushdecl_top_level (tree);
void pushlevel (int);
tree getdecls (void);
tree gfc_truthvalue_conversion (tree);
tree gfc_builtin_function (tree);
+
+/* In trans-types.c. */
struct array_descr_info;
bool gfc_get_array_descr_info (const_tree, struct array_descr_info *);
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_numeric_f08;
extern GTY(()) tree gfor_fndecl_stop_string;
extern GTY(()) tree gfor_fndecl_error_stop_numeric;
extern GTY(()) tree gfor_fndecl_error_stop_string;
extern GTY(()) tree gfor_fndecl_in_unpack;
extern GTY(()) tree gfor_fndecl_associated;
+
+/* Coarray run-time library function decls. */
+extern GTY(()) tree gfor_fndecl_caf_init;
+extern GTY(()) tree gfor_fndecl_caf_finalize;
+extern GTY(()) tree gfor_fndecl_caf_register;
+extern GTY(()) tree gfor_fndecl_caf_critical;
+extern GTY(()) tree gfor_fndecl_caf_end_critical;
+extern GTY(()) tree gfor_fndecl_caf_sync_all;
+extern GTY(()) tree gfor_fndecl_caf_sync_images;
+extern GTY(()) tree gfor_fndecl_caf_error_stop;
+extern GTY(()) tree gfor_fndecl_caf_error_stop_str;
+
+/* Coarray global variables for num_images/this_image. */
+extern GTY(()) tree gfort_gvar_caf_num_images;
+extern GTY(()) tree gfort_gvar_caf_this_image;
+
+
/* Math functions. Many other math functions are handled in
trans-intrinsic.c. */
extern GTY(()) tree gfor_fndecl_size0;
extern GTY(()) tree gfor_fndecl_size1;
extern GTY(()) tree gfor_fndecl_iargc;
-extern GTY(()) tree gfor_fndecl_clz128;
-extern GTY(()) tree gfor_fndecl_ctz128;
/* Implemented in Fortran. */
extern GTY(()) tree gfor_fndecl_sc_kind;
variable-sized in some other frontends. Due to gengtype deficiency the GTY
options of such types have to agree across all frontends. */
struct GTY((variable_size)) lang_type {
- int rank;
+ int rank, corank;
enum gfc_array_kind akind;
tree lbound[GFC_MAX_DIMENSIONS];
tree ubound[GFC_MAX_DIMENSIONS];
tree dataptr_type;
tree span;
tree base_decl[2];
+ tree nonrestricted_type;
+ tree caf_token;
+ tree caf_offset;
};
struct GTY((variable_size)) lang_decl {
tree stringlen;
tree addr;
tree span;
+ /* For assumed-shape coarrays. */
+ tree token, caf_offset;
};
#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_TOKEN(node) DECL_LANG_SPECIFIC(node)->token
+#define GFC_DECL_CAF_OFFSET(node) DECL_LANG_SPECIFIC(node)->caf_offset
#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_TYPE_ARRAY_STRIDE(node, dim) \
(TYPE_LANG_SPECIFIC(node)->stride[dim])
#define GFC_TYPE_ARRAY_RANK(node) (TYPE_LANG_SPECIFIC(node)->rank)
+#define GFC_TYPE_ARRAY_CORANK(node) (TYPE_LANG_SPECIFIC(node)->corank)
+#define GFC_TYPE_ARRAY_CAF_TOKEN(node) (TYPE_LANG_SPECIFIC(node)->caf_token)
+#define GFC_TYPE_ARRAY_CAF_OFFSET(node) (TYPE_LANG_SPECIFIC(node)->caf_offset)
#define GFC_TYPE_ARRAY_SIZE(node) (TYPE_LANG_SPECIFIC(node)->size)
#define GFC_TYPE_ARRAY_OFFSET(node) (TYPE_LANG_SPECIFIC(node)->offset)
#define GFC_TYPE_ARRAY_AKIND(node) (TYPE_LANG_SPECIFIC(node)->akind)
#define GFC_TYPE_ARRAY_BASE_DECL(node, internal) \
(TYPE_LANG_SPECIFIC(node)->base_decl[(internal)])
+
/* Build an expression with void type. */
-#define build1_v(code, arg) fold_build1(code, void_type_node, arg)
-#define build2_v(code, arg1, arg2) fold_build2(code, void_type_node, \
- arg1, arg2)
-#define build3_v(code, arg1, arg2, arg3) fold_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)
+#define build1_v(code, arg) \
+ fold_build1_loc (input_location, code, void_type_node, arg)
+#define build2_v(code, arg1, arg2) \
+ fold_build2_loc (input_location, code, void_type_node, arg1, arg2)
+#define build3_v(code, arg1, arg2, arg3) \
+ fold_build3_loc (input_location, code, void_type_node, arg1, arg2, arg3)
+#define build4_v(code, arg1, arg2, arg3, arg4) \
+ build4_loc (input_location, 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
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