/* Register Transfer Language (RTL) definitions for GCC
Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of GCC.
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. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
#ifndef GCC_RTL_H
#define GCC_RTL_H
#include "statistics.h"
#include "machmode.h"
#include "input.h"
+#include "real.h"
#undef FFS /* Some systems predefine this symbol; don't let it interfere. */
#undef FLOAT /* Likewise. */
#define RTX_COMMUTATIVE_MASK (~2)
#define RTX_COMMUTATIVE_RESULT (RTX_COMM_COMPARE & RTX_COMMUTATIVE_MASK)
#define RTX_NON_COMMUTATIVE_RESULT (RTX_COMPARE & RTX_COMMUTATIVE_MASK)
-#define RTX_EXPR_FIRST (RTX_COMPARE)
-#define RTX_EXPR_LAST (RTX_UNARY)
extern const unsigned char rtx_length[NUM_RTX_CODE];
#define GET_RTX_LENGTH(CODE) (rtx_length[(int) (CODE)])
union u {
rtunion fld[1];
HOST_WIDE_INT hwint[1];
+ struct real_value rv;
} GTY ((special ("rtx_def"), desc ("GET_CODE (&%0)"))) u;
};
/* 1 if X is a constant value that is an integer. */
#define CONSTANT_P(X) \
- (GET_RTX_CLASS (GET_CODE (X)) == RTX_CONST_OBJ \
- || GET_CODE (X) == CONST_VECTOR)
+ (GET_RTX_CLASS (GET_CODE (X)) == RTX_CONST_OBJ)
/* 1 if X can be used to represent an object. */
#define OBJECT_P(X) \
__FUNCTION__); \
&_rtx->u.hwint[N]; }))
+#define XCMWINT(RTX, N, C, M) __extension__ \
+(*({ 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); \
+ if (GET_CODE (_rtx) != (C) || GET_MODE (_rtx) == (M)) \
+ rtl_check_failed_code_mode (_rtx, (C), (M), true, __FILE__, \
+ __LINE__, __FUNCTION__); \
+ &_rtx->u.rv; })
+
extern void rtl_check_failed_bounds (rtx, int, const char *, int,
const char *)
ATTRIBUTE_NORETURN;
extern void rtl_check_failed_code2 (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,
+ bool, const char *, int, const char *)
+ ATTRIBUTE_NORETURN;
extern void rtvec_check_failed_bounds (rtvec, int, const char *, int,
const char *)
ATTRIBUTE_NORETURN;
#define RTVEC_ELT(RTVEC, I) ((RTVEC)->elem[I])
#define XWINT(RTX, N) ((RTX)->u.hwint[N])
#define XCWINT(RTX, N, C) ((RTX)->u.hwint[N])
+#define XCMWINT(RTX, N, C, M) ((RTX)->u.hwint[N])
+#define XCNMWINT(RTX, N, C, M) ((RTX)->u.hwint[N])
+#define XCNMPRV(RTX, C, M) (&(RTX)->u.rv)
#endif
#define RTL_FLAG_CHECK8(NAME, RTX, C1, C2, C3, C4, C5, C6, C7, C8) (RTX)
#endif
-#define CLEAR_RTX_FLAGS(RTX) \
-do { \
- rtx const _rtx = (RTX); \
- _rtx->jump = 0; \
- _rtx->call = 0; \
- _rtx->unchanging = 0; \
- _rtx->volatil = 0; \
- _rtx->in_struct = 0; \
- _rtx->used = 0; \
- _rtx->frame_related = 0; \
- _rtx->return_val = 0; \
-} while (0)
-
#define XINT(RTX, N) (RTL_CHECK2 (RTX, N, 'i', 'n').rt_int)
#define XSTR(RTX, N) (RTL_CHECK2 (RTX, N, 's', 'S').rt_str)
#define XEXP(RTX, N) (RTL_CHECK2 (RTX, N, 'e', 'u').rt_rtx)
REG_NOTE_MAX
};
-/* The base value for branch probability notes. */
-#define REG_BR_PROB_BASE 10000
-
/* Define macros to extract and insert the reg-note kind in an EXPR_LIST. */
#define REG_NOTE_KIND(LINK) ((enum reg_note) GET_MODE (LINK))
#define PUT_REG_NOTE_KIND(LINK, KIND) \
#define NOTE_EH_HANDLER(INSN) XCINT (INSN, 4, NOTE)
#define NOTE_BASIC_BLOCK(INSN) XCBBDEF (INSN, 4, NOTE)
#define NOTE_EXPECTED_VALUE(INSN) XCEXP (INSN, 4, NOTE)
-#define NOTE_PREDICTION(INSN) XCINT (INSN, 4, NOTE)
#define NOTE_VAR_LOCATION(INSN) XCEXP (INSN, 4, NOTE)
/* In a NOTE that is a line number, this is the line number.
(GET_CODE (INSN) == NOTE \
&& NOTE_LINE_NUMBER (INSN) == NOTE_INSN_BASIC_BLOCK)
-/* Algorithm and flags for prediction. */
-#define NOTE_PREDICTION_ALG(INSN) (XCINT(INSN, 4, NOTE)>>8)
-#define NOTE_PREDICTION_FLAGS(INSN) (XCINT(INSN, 4, NOTE)&0xff)
-#define NOTE_PREDICT(ALG,FLAGS) ((ALG<<8)+(FLAGS))
-
/* Variable declaration and the location of a variable. */
#define NOTE_VAR_LOCATION_DECL(INSN) (XCTREE (XCEXP (INSN, 4, NOTE), \
0, VAR_LOCATION))
#define INTVAL(RTX) XCWINT(RTX, 0, CONST_INT)
/* For a CONST_DOUBLE:
- For a DImode, there are two integers CONST_DOUBLE_LOW is the
+ For a VOIDmode, there are two integers CONST_DOUBLE_LOW is the
low-order word and ..._HIGH the high-order.
For a float, there is a REAL_VALUE_TYPE structure, and
CONST_DOUBLE_REAL_VALUE(r) is a pointer to it. */
-#define CONST_DOUBLE_LOW(r) XCWINT (r, 0, CONST_DOUBLE)
-#define CONST_DOUBLE_HIGH(r) XCWINT (r, 1, CONST_DOUBLE)
-#define CONST_DOUBLE_REAL_VALUE(r) ((struct real_value *)&CONST_DOUBLE_LOW(r))
+#define CONST_DOUBLE_LOW(r) XCMWINT (r, 0, CONST_DOUBLE, VOIDmode)
+#define CONST_DOUBLE_HIGH(r) XCMWINT (r, 1, CONST_DOUBLE, VOIDmode)
+#define CONST_DOUBLE_REAL_VALUE(r) \
+ ((const struct real_value *) XCNMPRV (r, CONST_DOUBLE, VOIDmode))
/* For a CONST_VECTOR, return element #n. */
#define CONST_VECTOR_ELT(RTX, N) XCVECEXP (RTX, 0, N, CONST_VECTOR)
not to use an rtx with this cost under any circumstances. */
#define MAX_COST INT_MAX
+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);
ASM_INPUT)->volatil)
/* 1 if RTX is a mem that refers to an aggregate, either to the
- aggregate itself of to a field of the aggregate. If zero, RTX may
+ aggregate itself or to a field of the aggregate. If zero, RTX may
or may not be such a reference. */
#define MEM_IN_STRUCT_P(RTX) \
(RTL_FLAG_CHECK1("MEM_IN_STRUCT_P", (RTX), MEM)->in_struct)
extern void set_stack_check_libfunc (rtx);
extern HOST_WIDE_INT trunc_int_for_mode (HOST_WIDE_INT, enum machine_mode);
extern rtx plus_constant (rtx, HOST_WIDE_INT);
-extern void optimize_save_area_alloca (void);
/* In emit-rtl.c */
extern rtvec gen_rtvec (int, ...);
extern rtx gen_reg_rtx (enum machine_mode);
extern rtx gen_rtx_REG_offset (rtx, enum machine_mode, unsigned int, int);
extern rtx gen_label_rtx (void);
-extern int subreg_hard_regno (rtx, int);
extern rtx gen_lowpart_common (enum machine_mode, rtx);
/* In cse.c */
/* In emit-rtl.c */
extern rtx gen_highpart (enum machine_mode, rtx);
extern rtx gen_highpart_mode (enum machine_mode, enum machine_mode, rtx);
-extern rtx gen_realpart (enum machine_mode, rtx);
-extern rtx gen_imagpart (enum machine_mode, rtx);
extern rtx operand_subword (rtx, unsigned int, int, enum machine_mode);
/* In emit-rtl.c */
extern rtx split_insns (rtx, rtx);
/* In simplify-rtx.c */
+extern rtx simplify_const_unary_operation (enum rtx_code, enum machine_mode,
+ rtx, enum machine_mode);
extern rtx simplify_unary_operation (enum rtx_code, enum machine_mode, rtx,
enum machine_mode);
+extern rtx simplify_const_binary_operation (enum rtx_code, enum machine_mode,
+ rtx, rtx);
extern rtx simplify_binary_operation (enum rtx_code, enum machine_mode, rtx,
rtx);
extern rtx simplify_ternary_operation (enum rtx_code, enum machine_mode,
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 regs_set_between_p (rtx, rtx, rtx);
extern int commutative_operand_precedence (rtx);
extern int swap_commutative_operands_p (rtx, rtx);
extern int modified_between_p (rtx, rtx, rtx);
extern int true_regnum (rtx);
extern unsigned int reg_or_subregno (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 void delete_for_peephole (rtx, rtx);
extern int condjump_in_parallel_p (rtx);
-extern void purge_line_number_notes (rtx);
+extern void purge_line_number_notes (void);
/* In emit-rtl.c. */
extern int max_reg_num (void);
extern void init_emit_once (int);
extern void push_topmost_sequence (void);
extern void pop_topmost_sequence (void);
-extern void reverse_comparison (rtx);
extern void set_new_first_and_last_insn (rtx, rtx);
extern void unshare_all_rtl (void);
extern void unshare_all_rtl_again (rtx);
extern void delete_insn_chain_and_edges (rtx, rtx);
extern rtx gen_lowpart_SUBREG (enum machine_mode, rtx);
extern rtx gen_const_mem (enum machine_mode, rtx);
+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);
/* In combine.c */
extern int combine_instructions (rtx, unsigned int);
unsigned int, int);
/* In flow.c */
-extern void recompute_reg_usage (rtx, int);
+extern void recompute_reg_usage (void);
extern int initialize_uninitialized_subregs (void);
extern void delete_dead_jumptables (void);
extern void print_rtl_with_bb (FILE *, rtx);
extern void init_expmed (void);
extern void expand_inc (rtx, rtx);
extern void expand_dec (rtx, rtx);
-extern rtx expand_mult_highpart (enum machine_mode, rtx,
- unsigned HOST_WIDE_INT, rtx, int, int);
/* In gcse.c */
extern bool can_copy_p (enum machine_mode);
extern void init_regs (void);
extern void init_fake_stack_mems (void);
extern void init_reg_sets (void);
-extern void regset_release_memory (void);
extern void regclass_init (void);
extern void regclass (rtx, int, FILE *);
-extern void reg_scan (rtx, unsigned int, int);
+extern void reg_scan (rtx, unsigned int);
extern void reg_scan_update (rtx, rtx, unsigned int);
extern void fix_register (const char *, int, int);
extern void init_subregs_of_mode (void);
extern void dump_local_alloc (FILE *);
extern int local_alloc (void);
+/* In reload1.c */
+extern int function_invariant_p (rtx);
+
/* In reg-stack.c */
extern bool reg_to_stack (FILE *);
LCT_PURE_MAKE_BLOCK = 4,
LCT_NORETURN = 5,
LCT_THROW = 6,
- LCT_ALWAYS_RETURN = 7,
- LCT_RETURNS_TWICE = 8
+ LCT_RETURNS_TWICE = 7
};
extern void emit_library_call (rtx, enum libcall_type, enum machine_mode, int,
extern rtx emit_library_call_value (rtx, rtx, enum libcall_type,
enum machine_mode, int, ...);
-/* In unroll.c */
-extern int set_dominates_use (int, int, int, rtx, rtx);
-
/* In varasm.c */
extern int in_data_section (void);
extern void init_varasm_once (void);
-
+extern enum tls_model decl_default_tls_model (tree);
+
/* In rtl.c */
-extern void init_rtl (void);
extern void traverse_md_constants (int (*) (void **, void *), void *);
struct md_constant { char *name, *value; };
/* In read-rtl.c */
extern int read_skip_spaces (FILE *);
extern bool read_rtx (FILE *, rtx *, int *);
+extern void copy_rtx_ptr_loc (const void *, const void *);
+extern void print_rtx_ptr_loc (const void *);
+extern const char *join_c_conditions (const char *, const char *);
+extern void print_c_condition (const char *);
extern const char *read_rtx_filename;
extern int read_rtx_lineno;
struct rtl_hooks
{
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,
unsigned HOST_WIDE_INT, unsigned HOST_WIDE_INT *);
rtx (*reg_num_sign_bit_copies) (rtx, enum machine_mode, rtx, enum machine_mode,
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