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, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#ifndef GCC_RTL_H
#define GCC_RTL_H
#include "input.h"
#include "real.h"
#include "vec.h"
+#include "alias.h"
#undef FFS /* Some systems predefine this symbol; don't let it interfere. */
#undef FLOAT /* Likewise. */
stricter alignment; OFFSET is the offset of the MEM within that object. */
typedef struct mem_attrs GTY(())
{
- HOST_WIDE_INT alias; /* Memory alias set. */
+ alias_set_type alias; /* Memory alias set. */
tree expr; /* expr corresponding to MEM. */
rtx offset; /* Offset from start of DECL, as CONST_INT. */
rtx size; /* Size in bytes, as a CONST_INT. */
/* The bit with a star outside the statement expr and an & inside is
so that N can be evaluated only once. */
#define RTL_CHECK1(RTX, N, C1) __extension__ \
-(*({ rtx const _rtx = (RTX); const int _n = (N); \
+(*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \
const enum rtx_code _code = GET_CODE (_rtx); \
if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \
rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \
&_rtx->u.fld[_n]; }))
#define RTL_CHECK2(RTX, N, C1, C2) __extension__ \
-(*({ rtx const _rtx = (RTX); const int _n = (N); \
+(*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \
const enum rtx_code _code = GET_CODE (_rtx); \
if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \
rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \
&_rtx->u.fld[_n]; }))
#define RTL_CHECKC1(RTX, N, C) __extension__ \
-(*({ rtx const _rtx = (RTX); const int _n = (N); \
+(*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \
if (GET_CODE (_rtx) != (C)) \
rtl_check_failed_code1 (_rtx, (C), __FILE__, __LINE__, \
__FUNCTION__); \
&_rtx->u.fld[_n]; }))
#define RTL_CHECKC2(RTX, N, C1, C2) __extension__ \
-(*({ rtx const _rtx = (RTX); const int _n = (N); \
+(*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \
const enum rtx_code _code = GET_CODE (_rtx); \
if (_code != (C1) && _code != (C2)) \
rtl_check_failed_code2 (_rtx, (C1), (C2), __FILE__, __LINE__, \
&_rtx->u.fld[_n]; }))
#define RTVEC_ELT(RTVEC, I) __extension__ \
-(*({ rtvec const _rtvec = (RTVEC); const int _i = (I); \
+(*({ __typeof (RTVEC) const _rtvec = (RTVEC); const int _i = (I); \
if (_i < 0 || _i >= GET_NUM_ELEM (_rtvec)) \
rtvec_check_failed_bounds (_rtvec, _i, __FILE__, __LINE__, \
__FUNCTION__); \
&_rtvec->elem[_i]; }))
#define XWINT(RTX, N) __extension__ \
-(*({ rtx const _rtx = (RTX); const int _n = (N); \
+(*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \
const enum rtx_code _code = GET_CODE (_rtx); \
if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \
rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \
&_rtx->u.hwint[_n]; }))
#define XCWINT(RTX, N, C) __extension__ \
-(*({ rtx const _rtx = (RTX); \
+(*({ __typeof (RTX) const _rtx = (RTX); \
if (GET_CODE (_rtx) != (C)) \
rtl_check_failed_code1 (_rtx, (C), __FILE__, __LINE__, \
__FUNCTION__); \
&_rtx->u.hwint[N]; }))
#define XCMWINT(RTX, N, C, M) __extension__ \
-(*({ rtx const _rtx = (RTX); \
+(*({ __typeof (RTX) const _rtx = (RTX); \
if (GET_CODE (_rtx) != (C) || GET_MODE (_rtx) != (M)) \
rtl_check_failed_code_mode (_rtx, (C), (M), false, __FILE__, \
__LINE__, __FUNCTION__); \
&_rtx->u.hwint[N]; }))
#define XCNMPRV(RTX, C, M) __extension__ \
-({ rtx const _rtx = (RTX); \
+({ __typeof (RTX) const _rtx = (RTX); \
if (GET_CODE (_rtx) != (C) || GET_MODE (_rtx) == (M)) \
rtl_check_failed_code_mode (_rtx, (C), (M), true, __FILE__, \
__LINE__, __FUNCTION__); \
&_rtx->u.rv; })
#define BLOCK_SYMBOL_CHECK(RTX) __extension__ \
-({ rtx const _symbol = (RTX); \
- unsigned int flags = RTL_CHECKC1 (_symbol, 1, SYMBOL_REF).rt_int; \
+({ __typeof (RTX) const _symbol = (RTX); \
+ const unsigned int flags = RTL_CHECKC1 (_symbol, 1, SYMBOL_REF).rt_int; \
if ((flags & SYMBOL_FLAG_HAS_BLOCK_INFO) == 0) \
rtl_check_failed_block_symbol (__FILE__, __LINE__, \
__FUNCTION__); \
&_symbol->u.block_sym; })
-extern void rtl_check_failed_bounds (rtx, int, const char *, int,
+extern void rtl_check_failed_bounds (const_rtx, int, const char *, int,
const char *)
ATTRIBUTE_NORETURN;
-extern void rtl_check_failed_type1 (rtx, int, int, const char *, int,
+extern void rtl_check_failed_type1 (const_rtx, int, int, const char *, int,
const char *)
ATTRIBUTE_NORETURN;
-extern void rtl_check_failed_type2 (rtx, int, int, int, const char *,
+extern void rtl_check_failed_type2 (const_rtx, int, int, int, const char *,
int, const char *)
ATTRIBUTE_NORETURN;
-extern void rtl_check_failed_code1 (rtx, enum rtx_code, const char *,
+extern void rtl_check_failed_code1 (const_rtx, enum rtx_code, const char *,
int, const char *)
ATTRIBUTE_NORETURN;
-extern void rtl_check_failed_code2 (rtx, enum rtx_code, enum rtx_code,
+extern void rtl_check_failed_code2 (const_rtx, enum rtx_code, enum rtx_code,
const char *, int, const char *)
ATTRIBUTE_NORETURN;
-extern void rtl_check_failed_code_mode (rtx, enum rtx_code, enum machine_mode,
+extern void rtl_check_failed_code_mode (const_rtx, enum rtx_code, enum machine_mode,
bool, const char *, int, const char *)
ATTRIBUTE_NORETURN;
extern void rtl_check_failed_block_symbol (const char *, int, const char *)
ATTRIBUTE_NORETURN;
-extern void rtvec_check_failed_bounds (rtvec, int, const char *, int,
+extern void rtvec_check_failed_bounds (const_rtvec, int, const char *, int,
const char *)
ATTRIBUTE_NORETURN;
#if defined ENABLE_RTL_FLAG_CHECKING && (GCC_VERSION >= 2007)
#define RTL_FLAG_CHECK1(NAME, RTX, C1) __extension__ \
-({ rtx const _rtx = (RTX); \
+({ __typeof (RTX) const _rtx = (RTX); \
if (GET_CODE(_rtx) != C1) \
rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \
__FUNCTION__); \
_rtx; })
#define RTL_FLAG_CHECK2(NAME, RTX, C1, C2) __extension__ \
-({ rtx const _rtx = (RTX); \
+({ __typeof (RTX) const _rtx = (RTX); \
if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2) \
rtl_check_failed_flag (NAME,_rtx, __FILE__, __LINE__, \
__FUNCTION__); \
_rtx; })
#define RTL_FLAG_CHECK3(NAME, RTX, C1, C2, C3) __extension__ \
-({ rtx const _rtx = (RTX); \
+({ __typeof (RTX) const _rtx = (RTX); \
if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \
&& GET_CODE(_rtx) != C3) \
rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \
_rtx; })
#define RTL_FLAG_CHECK4(NAME, RTX, C1, C2, C3, C4) __extension__ \
-({ rtx const _rtx = (RTX); \
+({ __typeof (RTX) const _rtx = (RTX); \
if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \
&& GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4) \
rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \
_rtx; })
#define RTL_FLAG_CHECK5(NAME, RTX, C1, C2, C3, C4, C5) __extension__ \
-({ rtx const _rtx = (RTX); \
+({ __typeof (RTX) const _rtx = (RTX); \
if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \
&& GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \
&& GET_CODE(_rtx) != C5) \
#define RTL_FLAG_CHECK6(NAME, RTX, C1, C2, C3, C4, C5, C6) \
__extension__ \
-({ rtx const _rtx = (RTX); \
+({ __typeof (RTX) const _rtx = (RTX); \
if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \
&& GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \
&& GET_CODE(_rtx) != C5 && GET_CODE(_rtx) != C6) \
#define RTL_FLAG_CHECK7(NAME, RTX, C1, C2, C3, C4, C5, C6, C7) \
__extension__ \
-({ rtx const _rtx = (RTX); \
+({ __typeof (RTX) const _rtx = (RTX); \
if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \
&& GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \
&& GET_CODE(_rtx) != C5 && GET_CODE(_rtx) != C6 \
#define RTL_FLAG_CHECK8(NAME, RTX, C1, C2, C3, C4, C5, C6, C7, C8) \
__extension__ \
-({ rtx const _rtx = (RTX); \
+({ __typeof (RTX) const _rtx = (RTX); \
if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \
&& GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \
&& GET_CODE(_rtx) != C5 && GET_CODE(_rtx) != C6 \
__FUNCTION__); \
_rtx; })
-extern void rtl_check_failed_flag (const char *, rtx, const char *,
+extern void rtl_check_failed_flag (const char *, const_rtx, const char *,
int, const char *)
ATTRIBUTE_NORETURN
;
/* Retrieve the kind of LABEL. */
#define LABEL_KIND(LABEL) __extension__ \
-({ rtx const _label = (LABEL); \
+({ __typeof (LABEL) const _label = (LABEL); \
if (GET_CODE (_label) != CODE_LABEL) \
rtl_check_failed_flag ("LABEL_KIND", _label, __FILE__, __LINE__, \
__FUNCTION__); \
/* Set the kind of LABEL. */
#define SET_LABEL_KIND(LABEL, KIND) do { \
- rtx _label = (LABEL); \
- unsigned int _kind = (KIND); \
+ __typeof (LABEL) const _label = (LABEL); \
+ const unsigned int _kind = (KIND); \
if (GET_CODE (_label) != CODE_LABEL) \
rtl_check_failed_flag ("SET_LABEL_KIND", _label, __FILE__, __LINE__, \
__FUNCTION__); \
/* Set the kind of LABEL. */
#define SET_LABEL_KIND(LABEL, KIND) do { \
- rtx _label = (LABEL); \
- unsigned int _kind = (KIND); \
+ rtx const _label = (LABEL); \
+ const unsigned int _kind = (KIND); \
_label->jump = ((_kind >> 1) & 1); \
_label->call = (_kind & 1); \
} while (0)
/* Force the REGNO macro to only be used on the lhs. */
static inline unsigned int
-rhs_regno (rtx x)
+rhs_regno (const_rtx x)
{
return XCUINT (x, 0, REG);
}
extern void init_rtlanal (void);
extern int rtx_cost (rtx, enum rtx_code);
extern int address_cost (rtx, enum machine_mode);
-extern unsigned int subreg_lsb (rtx);
+extern unsigned int subreg_lsb (const_rtx);
extern unsigned int subreg_lsb_1 (enum machine_mode, enum machine_mode,
unsigned int);
extern unsigned int subreg_regno_offset (unsigned int, enum machine_mode,
unsigned int, enum machine_mode);
extern bool subreg_offset_representable_p (unsigned int, enum machine_mode,
unsigned int, enum machine_mode);
-extern unsigned int subreg_regno (rtx);
-extern unsigned int subreg_nregs (rtx);
-extern unsigned HOST_WIDE_INT nonzero_bits (rtx, enum machine_mode);
-extern unsigned int num_sign_bit_copies (rtx, enum machine_mode);
+extern unsigned int subreg_regno (const_rtx);
+extern unsigned int subreg_nregs (const_rtx);
+extern unsigned HOST_WIDE_INT nonzero_bits (const_rtx, enum machine_mode);
+extern unsigned int num_sign_bit_copies (const_rtx, enum machine_mode);
extern bool constant_pool_constant_p (rtx);
-extern bool truncated_to_mode (enum machine_mode, rtx);
+extern bool truncated_to_mode (enum machine_mode, const_rtx);
/* 1 if RTX is a subreg containing a reg that is already known to be
extern void set_reg_attrs_from_mem (rtx, rtx);
extern void set_mem_attrs_from_reg (rtx, rtx);
extern void set_reg_attrs_for_parm (rtx, rtx);
-extern int mem_expr_equal_p (tree, tree);
+extern int mem_expr_equal_p (const_tree, const_tree);
/* In rtl.c */
extern rtx rtx_alloc_stat (RTX_CODE MEM_STAT_DECL);
#define rtx_alloc(c) rtx_alloc_stat (c MEM_STAT_INFO)
extern rtvec rtvec_alloc (int);
-extern bool shared_const_p (rtx);
+extern bool shared_const_p (const_rtx);
extern rtx copy_rtx (rtx);
extern void dump_rtx_statistics (void);
extern rtx copy_rtx_if_shared (rtx);
/* In rtl.c */
-extern unsigned int rtx_size (rtx);
-extern rtx shallow_copy_rtx_stat (rtx MEM_STAT_DECL);
+extern unsigned int rtx_size (const_rtx);
+extern rtx shallow_copy_rtx_stat (const_rtx MEM_STAT_DECL);
#define shallow_copy_rtx(a) shallow_copy_rtx_stat (a MEM_STAT_INFO)
-extern int rtx_equal_p (rtx, rtx);
+extern int rtx_equal_p (const_rtx, const_rtx);
/* In emit-rtl.c */
extern rtvec gen_rtvec_v (int, rtx *);
/* In emit-rtl.c */
extern rtx operand_subword_force (rtx, unsigned int, enum machine_mode);
-extern int subreg_lowpart_p (rtx);
+extern int subreg_lowpart_p (const_rtx);
extern unsigned int subreg_lowpart_offset (enum machine_mode,
enum machine_mode);
extern unsigned int subreg_highpart_offset (enum machine_mode,
struct function;
extern rtx get_pool_constant (rtx);
extern rtx get_pool_constant_mark (rtx, bool *);
-extern enum machine_mode get_pool_mode (rtx);
+extern enum machine_mode get_pool_mode (const_rtx);
extern rtx simplify_subtraction (rtx);
/* In function.c */
extern rtx next_real_insn (rtx);
extern rtx prev_active_insn (rtx);
extern rtx next_active_insn (rtx);
-extern int active_insn_p (rtx);
+extern int active_insn_p (const_rtx);
extern rtx prev_label (rtx);
extern rtx next_label (rtx);
extern rtx skip_consecutive_labels (rtx);
extern rtx prev_cc0_setter (rtx);
/* In cfglayout.c */
-extern int insn_line (rtx);
-extern const char * insn_file (rtx);
+extern int insn_line (const_rtx);
+extern const char * insn_file (const_rtx);
extern int locator_line (int);
extern const char * locator_file (int);
extern int prologue_locator, epilogue_locator;
unsigned int);
extern rtx simplify_gen_subreg (enum machine_mode, rtx, enum machine_mode,
unsigned int);
-extern rtx simplify_replace_rtx (rtx, rtx, rtx);
+extern rtx simplify_replace_rtx (rtx, const_rtx, rtx);
extern rtx simplify_rtx (rtx);
extern rtx avoid_constant_pool_reference (rtx);
-extern bool mode_signbit_p (enum machine_mode, rtx);
+extern bool mode_signbit_p (enum machine_mode, const_rtx);
/* In regclass.c */
extern enum machine_mode choose_hard_reg_mode (unsigned int, unsigned int,
bool update_label_nuses;
} replace_label_data;
-extern int rtx_addr_can_trap_p (rtx);
-extern bool nonzero_address_p (rtx);
-extern int rtx_unstable_p (rtx);
-extern int rtx_varies_p (rtx, int);
-extern int rtx_addr_varies_p (rtx, int);
-extern HOST_WIDE_INT get_integer_term (rtx);
-extern rtx get_related_value (rtx);
-extern bool offset_within_block_p (rtx, HOST_WIDE_INT);
+extern int rtx_addr_can_trap_p (const_rtx);
+extern bool nonzero_address_p (const_rtx);
+extern int rtx_unstable_p (const_rtx);
+extern bool rtx_varies_p (const_rtx, bool);
+extern bool rtx_addr_varies_p (const_rtx, bool);
+extern HOST_WIDE_INT get_integer_term (const_rtx);
+extern rtx get_related_value (const_rtx);
+extern bool offset_within_block_p (const_rtx, HOST_WIDE_INT);
extern void split_const (rtx, rtx *, rtx *);
-extern int reg_mentioned_p (rtx, rtx);
-extern int count_occurrences (rtx, rtx, int);
-extern int reg_referenced_p (rtx, rtx);
-extern int reg_used_between_p (rtx, rtx, rtx);
-extern int reg_set_between_p (rtx, rtx, rtx);
+extern int reg_mentioned_p (const_rtx, const_rtx);
+extern int count_occurrences (const_rtx, const_rtx, int);
+extern int reg_referenced_p (const_rtx, const_rtx);
+extern int reg_used_between_p (const_rtx, const_rtx, const_rtx);
+extern int reg_set_between_p (const_rtx, const_rtx, const_rtx);
extern int commutative_operand_precedence (rtx);
extern bool swap_commutative_operands_p (rtx, rtx);
extern int modified_between_p (rtx, rtx, rtx);
-extern int no_labels_between_p (rtx, rtx);
+extern int no_labels_between_p (const_rtx, const_rtx);
extern int modified_in_p (rtx, rtx);
-extern int reg_set_p (rtx, rtx);
-extern rtx single_set_2 (rtx, rtx);
-extern int multiple_sets (rtx);
-extern int set_noop_p (rtx);
-extern int noop_move_p (rtx);
+extern int reg_set_p (const_rtx, const_rtx);
+extern rtx single_set_2 (const_rtx, const_rtx);
+extern int multiple_sets (const_rtx);
+extern int set_noop_p (const_rtx);
+extern int noop_move_p (const_rtx);
extern rtx find_last_value (rtx, rtx *, rtx, int);
-extern int refers_to_regno_p (unsigned int, unsigned int, rtx, rtx *);
-extern int reg_overlap_mentioned_p (rtx, rtx);
-extern rtx set_of (rtx, rtx);
-extern void note_stores (rtx, void (*) (rtx, rtx, void *), void *);
+extern int refers_to_regno_p (unsigned int, unsigned int, const_rtx, rtx *);
+extern int reg_overlap_mentioned_p (const_rtx, const_rtx);
+extern const_rtx set_of (const_rtx, const_rtx);
+extern void note_stores (const_rtx, void (*) (rtx, const_rtx, void *), void *);
extern void note_uses (rtx *, void (*) (rtx *, void *), void *);
-extern int dead_or_set_p (rtx, rtx);
-extern int dead_or_set_regno_p (rtx, unsigned int);
-extern rtx find_reg_note (rtx, enum reg_note, rtx);
-extern rtx find_regno_note (rtx, enum reg_note, unsigned int);
-extern rtx find_reg_equal_equiv_note (rtx);
-extern rtx find_constant_src (rtx);
-extern int find_reg_fusage (rtx, enum rtx_code, rtx);
-extern int find_regno_fusage (rtx, enum rtx_code, unsigned int);
-extern int pure_call_p (rtx);
-extern void remove_note (rtx, rtx);
+extern int dead_or_set_p (const_rtx, const_rtx);
+extern int dead_or_set_regno_p (const_rtx, unsigned int);
+extern rtx find_reg_note (const_rtx, enum reg_note, const_rtx);
+extern rtx find_regno_note (const_rtx, enum reg_note, unsigned int);
+extern rtx find_reg_equal_equiv_note (const_rtx);
+extern rtx find_constant_src (const_rtx);
+extern int find_reg_fusage (const_rtx, enum rtx_code, const_rtx);
+extern int find_regno_fusage (const_rtx, enum rtx_code, unsigned int);
+extern int pure_call_p (const_rtx);
+extern void remove_note (rtx, const_rtx);
extern void remove_reg_equal_equiv_notes (rtx);
-extern int side_effects_p (rtx);
-extern int volatile_refs_p (rtx);
-extern int volatile_insn_p (rtx);
-extern int may_trap_p (rtx);
-extern int may_trap_after_code_motion_p (rtx);
-extern int may_trap_or_fault_p (rtx);
-extern int inequality_comparisons_p (rtx);
+extern int side_effects_p (const_rtx);
+extern int volatile_refs_p (const_rtx);
+extern int volatile_insn_p (const_rtx);
+extern int may_trap_p (const_rtx);
+extern int may_trap_after_code_motion_p (const_rtx);
+extern int may_trap_or_fault_p (const_rtx);
+extern int inequality_comparisons_p (const_rtx);
extern rtx replace_rtx (rtx, rtx, rtx);
extern int replace_label (rtx *, void *);
extern int rtx_referenced_p (rtx, rtx);
-extern bool tablejump_p (rtx, rtx *, rtx *);
-extern int computed_jump_p (rtx);
+extern bool tablejump_p (const_rtx, rtx *, rtx *);
+extern int computed_jump_p (const_rtx);
typedef int (*rtx_function) (rtx *, void *);
extern int for_each_rtx (rtx *, rtx_function, void *);
extern rtx regno_use_in (unsigned int, rtx);
-extern int auto_inc_p (rtx);
-extern int in_expr_list_p (rtx, rtx);
-extern void remove_node_from_expr_list (rtx, rtx *);
-extern int loc_mentioned_in_p (rtx *, rtx);
+extern int auto_inc_p (const_rtx);
+extern int in_expr_list_p (const_rtx, const_rtx);
+extern void remove_node_from_expr_list (const_rtx, rtx *);
+extern int loc_mentioned_in_p (rtx *, const_rtx);
extern rtx find_first_parameter_load (rtx, rtx);
extern bool keep_with_call_p (rtx);
-extern bool label_is_jump_target_p (rtx, rtx);
+extern bool label_is_jump_target_p (const_rtx, const_rtx);
extern int insn_rtx_cost (rtx);
/* Given an insn and condition, return a canonical description of
extern void free_reg_info (void);
/* recog.c */
-extern int asm_noperands (rtx);
+extern int asm_noperands (const_rtx);
extern const char *decode_asm_operands (rtx, rtx *, rtx **, const char **,
enum machine_mode *, location_t *);
/* In cse.c */
extern int delete_trivially_dead_insns (rtx, int);
extern int cse_main (rtx, int);
-extern int exp_equiv_p (rtx, rtx, int, bool);
-extern unsigned hash_rtx (rtx x, enum machine_mode, int *, int *, bool);
+extern int exp_equiv_p (const_rtx, const_rtx, int, bool);
+extern unsigned hash_rtx (const_rtx x, enum machine_mode, int *, int *, bool);
/* In jump.c */
extern int comparison_dominates_p (enum rtx_code, enum rtx_code);
-extern int condjump_p (rtx);
-extern int any_condjump_p (rtx);
-extern int any_uncondjump_p (rtx);
-extern rtx pc_set (rtx);
+extern int condjump_p (const_rtx);
+extern int any_condjump_p (const_rtx);
+extern int any_uncondjump_p (const_rtx);
+extern rtx pc_set (const_rtx);
extern rtx condjump_label (rtx);
-extern int simplejump_p (rtx);
+extern int simplejump_p (const_rtx);
extern int returnjump_p (rtx);
-extern int onlyjump_p (rtx);
-extern int only_sets_cc0_p (rtx);
-extern int sets_cc0_p (rtx);
+extern int onlyjump_p (const_rtx);
+extern int only_sets_cc0_p (const_rtx);
+extern int sets_cc0_p (const_rtx);
extern int invert_jump_1 (rtx, rtx);
extern int invert_jump (rtx, rtx, int);
extern int rtx_renumbered_equal_p (rtx, rtx);
-extern int true_regnum (rtx);
-extern unsigned int reg_or_subregno (rtx);
+extern int true_regnum (const_rtx);
+extern unsigned int reg_or_subregno (const_rtx);
extern int redirect_jump_1 (rtx, rtx);
extern void redirect_jump_2 (rtx, rtx, rtx, int, int);
extern int redirect_jump (rtx, rtx, int);
extern void rebuild_jump_labels (rtx);
extern rtx reversed_comparison (rtx, enum machine_mode);
extern enum rtx_code reversed_comparison_code (rtx, rtx);
-extern enum rtx_code reversed_comparison_code_parts (enum rtx_code,
- rtx, rtx, rtx);
+extern enum rtx_code reversed_comparison_code_parts (enum rtx_code, rtx,
+ rtx, rtx);
extern void delete_for_peephole (rtx, rtx);
-extern int condjump_in_parallel_p (rtx);
+extern int condjump_in_parallel_p (const_rtx);
/* In emit-rtl.c. */
extern int max_reg_num (void);
extern rtx gen_frame_mem (enum machine_mode, rtx);
extern rtx gen_tmp_stack_mem (enum machine_mode, rtx);
extern bool validate_subreg (enum machine_mode, enum machine_mode,
- rtx, unsigned int);
+ const_rtx, unsigned int);
/* In combine.c */
-extern unsigned int extended_count (rtx, enum machine_mode, int);
+extern unsigned int extended_count (const_rtx, enum machine_mode, int);
extern rtx remove_death (unsigned int, rtx);
extern void dump_combine_stats (FILE *);
extern void dump_combine_total_stats (FILE *);
/* In print-rtl.c */
extern const char *print_rtx_head;
-extern void debug_rtx (rtx);
-extern void debug_rtx_list (rtx, int);
-extern void debug_rtx_range (rtx, rtx);
-extern rtx debug_rtx_find (rtx, int);
-extern void print_mem_expr (FILE *, tree);
-extern void print_rtl (FILE *, rtx);
-extern void print_simple_rtl (FILE *, rtx);
-extern int print_rtl_single (FILE *, rtx);
-extern void print_inline_rtx (FILE *, rtx, int);
+extern void debug_rtx (const_rtx);
+extern void debug_rtx_list (const_rtx, int);
+extern void debug_rtx_range (const_rtx, const_rtx);
+extern const_rtx debug_rtx_find (const_rtx, int);
+extern void print_mem_expr (FILE *, const_tree);
+extern void print_rtl (FILE *, const_rtx);
+extern void print_simple_rtl (FILE *, const_rtx);
+extern int print_rtl_single (FILE *, const_rtx);
+extern void print_inline_rtx (FILE *, const_rtx, int);
/* In function.c */
extern void reposition_prologue_and_epilogue_notes (void);
-extern int prologue_epilogue_contains (rtx);
-extern int sibcall_epilogue_contains (rtx);
+extern int prologue_epilogue_contains (const_rtx);
+extern int sibcall_epilogue_contains (const_rtx);
extern void mark_temp_addr_taken (rtx);
extern void update_temp_slot_address (rtx, rtx);
unsigned int, int);
/* In cfgrtl.c */
-extern void print_rtl_with_bb (FILE *, rtx);
+extern void print_rtl_with_bb (FILE *, const_rtx);
/* In cfg.c. */
extern void dump_reg_info (FILE *);
extern void dump_local_alloc (FILE *);
/* In reload1.c */
-extern int function_invariant_p (rtx);
+extern int function_invariant_p (const_rtx);
/* In calls.c */
enum libcall_type
/* In alias.c */
extern rtx canon_rtx (rtx);
-extern int true_dependence (rtx, enum machine_mode, rtx, int (*)(rtx, int));
+extern int true_dependence (const_rtx, enum machine_mode, const_rtx, bool (*)(const_rtx, bool));
extern rtx get_addr (rtx);
-extern int canon_true_dependence (rtx, enum machine_mode, rtx, rtx,
- int (*)(rtx, int));
-extern int read_dependence (rtx, rtx);
-extern int anti_dependence (rtx, rtx);
-extern int output_dependence (rtx, rtx);
+extern int canon_true_dependence (const_rtx, enum machine_mode, rtx, const_rtx,
+ bool (*)(const_rtx, bool));
+extern int read_dependence (const_rtx, const_rtx);
+extern int anti_dependence (const_rtx, const_rtx);
+extern int output_dependence (const_rtx, const_rtx);
extern void init_alias_once (void);
extern void init_alias_analysis (void);
extern void end_alias_analysis (void);
{
rtx (*gen_lowpart) (enum machine_mode, rtx);
rtx (*gen_lowpart_no_emit) (enum machine_mode, rtx);
- rtx (*reg_nonzero_bits) (rtx, enum machine_mode, rtx, enum machine_mode,
+ rtx (*reg_nonzero_bits) (const_rtx, enum machine_mode, const_rtx, enum machine_mode,
unsigned HOST_WIDE_INT, unsigned HOST_WIDE_INT *);
- rtx (*reg_num_sign_bit_copies) (rtx, enum machine_mode, rtx, enum machine_mode,
+ rtx (*reg_num_sign_bit_copies) (const_rtx, enum machine_mode, const_rtx, enum machine_mode,
unsigned int, unsigned int *);
- bool (*reg_truncated_to_mode) (enum machine_mode, rtx);
+ bool (*reg_truncated_to_mode) (enum machine_mode, const_rtx);
/* Whenever you add entries here, make sure you adjust rtlhooks-def.h. */
};
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