/* Expand builtin functions.
- Copyright (C) 1988-2020 Free Software Foundation, Inc.
+ Copyright (C) 1988-2024 Free Software Foundation, Inc.
This file is part of GCC.
register windows, this gives only the outbound registers.
INCOMING_REGNO gives the corresponding inbound register. */
fixed_size_mode_pod x_apply_result_mode[FIRST_PSEUDO_REGISTER];
+
+ /* Nonzero iff the arrays above have been initialized. The _plus_one suffix
+ is for zero initialization to make it an unreasonable size, used to signal
+ that the size and the corresponding mode array has not been
+ initialized. */
+ int x_apply_args_size_plus_one;
+ int x_apply_result_size_plus_one;
};
extern struct target_builtins default_target_builtins;
extern bool called_as_built_in (tree);
extern bool get_object_alignment_1 (tree, unsigned int *,
unsigned HOST_WIDE_INT *);
+extern bool get_object_alignment_2 (tree, unsigned int *,
+ unsigned HOST_WIDE_INT *, bool);
extern unsigned int get_object_alignment (tree);
extern bool get_pointer_alignment_1 (tree, unsigned int *,
unsigned HOST_WIDE_INT *);
};
extern tree c_strlen (tree, int, c_strlen_data * = NULL, unsigned = 1);
-extern rtx c_readstr (const char *, scalar_int_mode, bool = true);
+extern rtx c_readstr (const char *, fixed_size_mode, bool = true);
extern void expand_builtin_setjmp_setup (rtx, rtx);
extern void expand_builtin_setjmp_receiver (rtx);
extern void expand_builtin_update_setjmp_buf (rtx);
extern tree mathfn_built_in (tree, enum built_in_function fn);
extern tree mathfn_built_in (tree, combined_fn);
extern tree mathfn_built_in_type (combined_fn);
-extern rtx builtin_strncpy_read_str (void *, HOST_WIDE_INT, scalar_int_mode);
-extern rtx builtin_memset_read_str (void *, HOST_WIDE_INT, scalar_int_mode);
+extern rtx builtin_strncpy_read_str (void *, void *, HOST_WIDE_INT,
+ fixed_size_mode);
+extern rtx builtin_memset_read_str (void *, void *, HOST_WIDE_INT,
+ fixed_size_mode);
+extern rtx expand_builtin_memset (tree, rtx, machine_mode);
extern rtx expand_builtin_saveregs (void);
extern tree std_build_builtin_va_list (void);
extern tree std_fn_abi_va_list (tree);
extern void expand_builtin_trap (void);
extern void expand_ifn_atomic_bit_test_and (gcall *);
extern void expand_ifn_atomic_compare_exchange (gcall *);
+extern void expand_ifn_atomic_op_fetch_cmp_0 (gcall *);
extern rtx expand_builtin (tree, rtx, rtx, machine_mode, int);
extern enum built_in_function builtin_mathfn_code (const_tree);
extern tree fold_builtin_expect (location_t, tree, tree, tree, tree);
extern tree fold_builtin_call_array (location_t, tree, tree, int, tree *);
extern bool validate_gimple_arglist (const gcall *, ...);
extern rtx default_expand_builtin (tree, rtx, rtx, machine_mode, int);
+extern void maybe_emit_call_builtin___clear_cache (rtx, rtx);
extern bool fold_builtin_next_arg (tree, bool);
extern tree do_mpc_arg2 (tree, tree, tree, int, int (*)(mpc_ptr, mpc_srcptr, mpc_srcptr, mpc_rnd_t));
extern tree fold_call_stmt (gcall *, bool);
extern char target_percent_c[3];
extern char target_percent_s_newline[4];
extern bool target_char_cst_p (tree t, char *p);
+extern rtx get_memory_rtx (tree exp, tree len);
+extern internal_fn associated_internal_fn (combined_fn, tree);
extern internal_fn associated_internal_fn (tree);
extern internal_fn replacement_internal_fn (gcall *);
-extern bool check_nul_terminated_array (tree, tree, tree = NULL_TREE);
-extern void warn_string_no_nul (location_t, tree, const char *, tree,
- tree, tree = NULL_TREE, bool = false,
- const wide_int[2] = NULL);
-extern tree unterminated_array (tree, tree * = NULL, bool * = NULL);
extern bool builtin_with_linkage_p (tree);
-
-/* Describes recursion limits used by functions that follow use-def
- chains of SSA_NAMEs. */
-
-class ssa_name_limit_t
-{
- bitmap visited; /* Bitmap of visited SSA_NAMEs. */
- unsigned ssa_def_max; /* Longest chain of SSA_NAMEs to follow. */
-
- /* Not copyable or assignable. */
- DISABLE_COPY_AND_ASSIGN (ssa_name_limit_t);
-
-public:
-
- ssa_name_limit_t ()
- : visited (),
- ssa_def_max (param_ssa_name_def_chain_limit) { }
-
- /* Set a bit for the PHI in VISITED and return true if it wasn't
- already set. */
- bool visit_phi (tree);
- /* Clear a bit for the PHI in VISITED. */
- void leave_phi (tree);
- /* Return false if the SSA_NAME chain length counter has reached
- the limit, otherwise increment the counter and return true. */
- bool next ();
-
- /* If the SSA_NAME has already been "seen" return a positive value.
- Otherwise add it to VISITED. If the SSA_NAME limit has been
- reached, return a negative value. Otherwise return zero. */
- int next_phi (tree);
-
- ~ssa_name_limit_t ();
-};
-
-class range_query;
-
-/* Describes a reference to an object used in an access. */
-struct access_ref
-{
- /* Set the bounds of the reference to at most as many bytes
- as the first argument or unknown when null, and at least
- one when the second argument is true unless the first one
- is a constant zero. */
- access_ref (tree = NULL_TREE, bool = false);
-
- /* Return the PHI node REF refers to or null if it doesn't. */
- gphi *phi () const;
-
- /* Return the object to which REF refers. */
- tree get_ref (vec<access_ref> *, access_ref * = NULL, int = 1,
- ssa_name_limit_t * = NULL, range_query * = NULL) const;
-
- /* Return true if OFFRNG is the constant zero. */
- bool offset_zero () const
- {
- return offrng[0] == 0 && offrng[1] == 0;
- }
-
- /* Return true if OFFRNG is bounded to a subrange of offset values
- valid for the largest possible object. */
- bool offset_bounded () const;
-
- /* Return the maximum amount of space remaining and if non-null, set
- argument to the minimum. */
- offset_int size_remaining (offset_int * = NULL) const;
-
- /* Set the size range to the maximum. */
- void set_max_size_range ()
- {
- sizrng[0] = 0;
- sizrng[1] = wi::to_offset (max_object_size ());
- }
-
- /* Add OFF to the offset range. */
- void add_offset (const offset_int &off)
- {
- add_offset (off, off);
- }
-
- /* Add the range [MIN, MAX] to the offset range. */
- void add_offset (const offset_int &, const offset_int &);
-
- /* Add the maximum representable offset to the offset range. */
- void add_max_offset ()
- {
- offset_int maxoff = wi::to_offset (TYPE_MAX_VALUE (ptrdiff_type_node));
- add_offset (-maxoff - 1, maxoff);
- }
-
- /* Issue an informational message describing the target of an access
- with the given mode. */
- void inform_access (access_mode) const;
-
- /* Reference to the accessed object(s). */
- tree ref;
-
- /* Range of byte offsets into and sizes of the object(s). */
- offset_int offrng[2];
- offset_int sizrng[2];
- /* Range of the bound of the access: denotes that the access
- is at least BNDRNG[0] bytes but no more than BNDRNG[1].
- For string functions the size of the actual access is
- further constrained by the length of the string. */
- offset_int bndrng[2];
-
- /* Used to fold integer expressions when called from front ends. */
- tree (*eval)(tree);
- /* Set if trailing one-element arrays should be treated as flexible
- array members. */
- bool trail1special;
- /* Set if valid offsets must start at zero (for declared and allocated
- objects but not for others referenced by pointers). */
- bool base0;
- /* Set if REF refers to a function array parameter not declared
- static. */
- bool parmarray;
-};
-
-/* Describes a pair of references used in an access by built-in
- functions like memcpy. */
-struct access_data
-{
- /* Set the access to at most MAXWRITE and MAXREAD bytes, and
- at least 1 when MINWRITE or MINREAD, respectively, is set. */
- access_data (tree expr, access_mode mode,
- tree maxwrite = NULL_TREE, bool minwrite = false,
- tree maxread = NULL_TREE, bool minread = false)
- : call (expr),
- dst (maxwrite, minwrite), src (maxread, minread), mode (mode) { }
-
- /* Built-in function call. */
- tree call;
- /* Destination and source of the access. */
- access_ref dst, src;
- /* Read-only for functions like memcmp or strlen, write-only
- for memset, read-write for memcpy or strcat. */
- access_mode mode;
-};
-
-extern tree gimple_call_alloc_size (gimple *, wide_int[2] = NULL,
- range_query * = NULL);
-extern tree gimple_parm_array_size (tree, wide_int[2], bool * = NULL);
-extern tree compute_objsize (tree, int, access_ref *, range_query * = NULL);
-extern tree compute_objsize (tree, int, tree * = NULL, tree * = NULL,
- range_query * = NULL);
-extern bool check_access (tree, tree, tree, tree, tree,
- access_mode, const access_data * = NULL);
+extern int type_to_class (tree);
#endif /* GCC_BUILTINS_H */
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