gcc/gcc/builtins.h
Jakub Jelinek 849a76a5a2 re PR middle-end/66867 (Suboptimal code generation for atomic_compare_exchange)
PR middle-end/66867
	* builtins.c (expand_ifn_atomic_compare_exchange_into_call,
	expand_ifn_atomic_compare_exchange): New functions.
	* internal-fn.c (expand_ATOMIC_COMPARE_EXCHANGE): New function.
	* tree.h (build_call_expr_internal_loc): Rename to ...
	(build_call_expr_internal_loc_array): ... this.  Fix up type of
	last argument.
	* internal-fn.def (ATOMIC_COMPARE_EXCHANGE): New internal fn.
	* predict.c (expr_expected_value_1): Handle IMAGPART_EXPR of
	ATOMIC_COMPARE_EXCHANGE result.
	* builtins.h (expand_ifn_atomic_compare_exchange): New prototype.
	* gimple-fold.h (optimize_atomic_compare_exchange_p,
	fold_builtin_atomic_compare_exchange): New prototypes.
	* gimple-fold.c (optimize_atomic_compare_exchange_p,
	fold_builtin_atomic_compare_exchange): New functions..
	* tree-ssa.c (execute_update_addresses_taken): If
	optimize_atomic_compare_exchange_p, ignore &var in 2nd argument
	of call when finding addressable vars, and if such var becomes
	non-addressable, call fold_builtin_atomic_compare_exchange.

From-SVN: r237814
2016-06-28 10:27:18 +02:00

105 lines
4.4 KiB
C

/* Expand builtin functions.
Copyright (C) 1988-2016 Free Software Foundation, Inc.
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/>. */
#ifndef GCC_BUILTINS_H
#define GCC_BUILTINS_H
#include <mpc.h>
/* Target-dependent globals. */
struct target_builtins {
/* For each register that may be used for calling a function, this
gives a mode used to copy the register's value. VOIDmode indicates
the register is not used for calling a function. If the machine
has register windows, this gives only the outbound registers.
INCOMING_REGNO gives the corresponding inbound register. */
machine_mode x_apply_args_mode[FIRST_PSEUDO_REGISTER];
/* For each register that may be used for returning values, this gives
a mode used to copy the register's value. VOIDmode indicates the
register is not used for returning values. If the machine has
register windows, this gives only the outbound registers.
INCOMING_REGNO gives the corresponding inbound register. */
machine_mode x_apply_result_mode[FIRST_PSEUDO_REGISTER];
};
extern struct target_builtins default_target_builtins;
#if SWITCHABLE_TARGET
extern struct target_builtins *this_target_builtins;
#else
#define this_target_builtins (&default_target_builtins)
#endif
/* Non-zero if __builtin_constant_p should be folded right away. */
extern bool force_folding_builtin_constant_p;
extern bool is_builtin_fn (tree);
extern bool called_as_built_in (tree);
extern bool get_object_alignment_1 (tree, unsigned int *,
unsigned HOST_WIDE_INT *);
extern unsigned int get_object_alignment (tree);
extern bool get_pointer_alignment_1 (tree, unsigned int *,
unsigned HOST_WIDE_INT *);
extern unsigned int get_pointer_alignment (tree);
extern tree c_strlen (tree, int);
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 rtx builtin_strncpy_read_str (void *, HOST_WIDE_INT, machine_mode);
extern rtx builtin_memset_read_str (void *, HOST_WIDE_INT, 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 tree std_canonical_va_list_type (tree);
extern void std_expand_builtin_va_start (tree, rtx);
extern void expand_builtin_trap (void);
extern void expand_ifn_atomic_bit_test_and (gcall *);
extern void expand_ifn_atomic_compare_exchange (gcall *);
extern rtx expand_builtin (tree, rtx, rtx, machine_mode, int);
extern rtx expand_builtin_with_bounds (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);
extern bool avoid_folding_inline_builtin (tree);
extern tree fold_call_expr (location_t, tree, bool);
extern tree fold_builtin_call_array (location_t, tree, tree, int, tree *);
extern tree fold_builtin_n (location_t, tree, tree *, int, bool);
extern bool validate_gimple_arglist (const gcall *, ...);
extern rtx default_expand_builtin (tree, rtx, rtx, machine_mode, int);
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 void set_builtin_user_assembler_name (tree decl, const char *asmspec);
extern bool is_simple_builtin (tree);
extern bool is_inexpensive_builtin (tree);
extern bool readonly_data_expr (tree exp);
extern bool init_target_chars (void);
extern unsigned HOST_WIDE_INT target_newline;
extern unsigned HOST_WIDE_INT target_percent;
extern char target_percent_s[3];
extern char target_percent_c[3];
extern char target_percent_s_newline[4];
extern internal_fn associated_internal_fn (tree);
extern internal_fn replacement_internal_fn (gcall *);
#endif