/* 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)])
struct basic_block_def *rt_bb;
mem_attrs *rt_mem;
reg_attrs *rt_reg;
+ struct constant_descriptor_rtx *rt_constant;
};
typedef union rtunion_def rtunion;
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)
#define X0CSELIB(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_cselib)
#define X0MEMATTR(RTX, N) (RTL_CHECKC1 (RTX, N, MEM).rt_mem)
#define X0REGATTR(RTX, N) (RTL_CHECKC1 (RTX, N, REG).rt_reg)
+#define X0CONSTANT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_constant)
/* Access a '0' field with any type. */
#define X0ANY(RTX, N) RTL_CHECK1 (RTX, N, '0')
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)
#define SYMBOL_REF_WEAK(RTX) \
(RTL_FLAG_CHECK1("SYMBOL_REF_WEAK", (RTX), SYMBOL_REF)->return_val)
+/* A pointer attached to the SYMBOL_REF; either SYMBOL_REF_DECL or
+ SYMBOL_REF_CONSTANT. */
+#define SYMBOL_REF_DATA(RTX) X0ANY ((RTX), 2)
+
+/* Set RTX's SYMBOL_REF_DECL to DECL. RTX must not be a constant
+ pool symbol. */
+#define SET_SYMBOL_REF_DECL(RTX, DECL) \
+ (gcc_assert (!CONSTANT_POOL_ADDRESS_P (RTX)), X0TREE ((RTX), 2) = (DECL))
+
/* The tree (decl or constant) associated with the symbol, or null. */
-#define SYMBOL_REF_DECL(RTX) X0TREE ((RTX), 2)
+#define SYMBOL_REF_DECL(RTX) \
+ (CONSTANT_POOL_ADDRESS_P (RTX) ? NULL : X0TREE ((RTX), 2))
+
+/* Set RTX's SYMBOL_REF_CONSTANT to C. RTX must be a constant pool symbol. */
+#define SET_SYMBOL_REF_CONSTANT(RTX, C) \
+ (gcc_assert (CONSTANT_POOL_ADDRESS_P (RTX)), X0CONSTANT ((RTX), 2) = (C))
+
+/* The rtx constant pool entry for a symbol, or null. */
+#define SYMBOL_REF_CONSTANT(RTX) \
+ (CONSTANT_POOL_ADDRESS_P (RTX) ? X0CONSTANT ((RTX), 2) : NULL)
/* A set of flags on a symbol_ref that are, in some respects, redundant with
information derivable from the tree decl associated with this symbol.
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, ...);
/* 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 get_pool_constant (rtx);
extern rtx get_pool_constant_mark (rtx, bool *);
extern enum machine_mode get_pool_mode (rtx);
-extern rtx get_pool_constant_for_function (struct function *, rtx);
extern rtx simplify_subtraction (rtx);
/* In function.c */
extern rtx emit_note_copy (rtx);
extern rtx emit_line_note (location_t);
extern rtx make_insn_raw (rtx);
+extern rtx make_jump_insn_raw (rtx);
extern void add_function_usage_to (rtx, rtx);
extern rtx last_call_insn (void);
extern rtx previous_insn (rtx);
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 rtx simplify_replace_rtx (rtx, rtx, rtx);
extern rtx simplify_rtx (rtx);
extern rtx avoid_constant_pool_reference (rtx);
+extern bool constant_pool_reference_p (rtx x);
extern bool mode_signbit_p (enum machine_mode, rtx);
/* In regclass.c */
extern int rtx_addr_varies_p (rtx, int);
extern HOST_WIDE_INT get_integer_term (rtx);
extern rtx get_related_value (rtx);
-extern int global_reg_mentioned_p (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 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 volatile_refs_p (rtx);
extern int volatile_insn_p (rtx);
extern int may_trap_p (rtx);
+extern int may_trap_or_fault_p (rtx);
extern int inequality_comparisons_p (rtx);
extern rtx replace_rtx (rtx, rtx, rtx);
extern rtx replace_regs (rtx, rtx *, unsigned int, int);
/* In cse.c */
extern int delete_trivially_dead_insns (rtx, int);
-extern int cse_main (rtx, int, FILE *);
-extern void cse_condition_code_reg (void);
+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 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 remove_insn (rtx);
extern void emit_insn_after_with_line_notes (rtx, rtx, rtx);
extern rtx emit (rtx);
-extern void renumber_insns (FILE *);
+extern void renumber_insns (void);
extern void remove_unnecessary_notes (void);
extern rtx delete_insn (rtx);
extern rtx entry_of_function (void);
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);
extern unsigned int extended_count (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 web.c */
-extern void web_main (void);
+
+/* In sched-vis.c. */
+extern void print_rtl_slim_with_bb (FILE *, rtx, int);
+extern void dump_insn_slim (FILE *f, rtx x);
+extern void debug_insn_slim (rtx x);
/* In sched-rgn.c. */
-extern void schedule_insns (FILE *);
+extern void schedule_insns (void);
/* In sched-ebb.c. */
-extern void schedule_ebbs (FILE *);
+extern void schedule_ebbs (void);
/* In haifa-sched.c. */
extern void fix_sched_param (const char *, const char *);
/* In loop.c */
extern void init_loop (void);
-extern void loop_optimize (rtx, FILE *, int);
/* In bt-load.c */
extern void branch_target_load_optimize (bool);
unsigned int, int);
/* In flow.c */
-extern void recompute_reg_usage (rtx, int);
-extern int initialize_uninitialized_subregs (void);
+extern void recompute_reg_usage (void);
extern void delete_dead_jumptables (void);
extern void print_rtl_with_bb (FILE *, rtx);
-extern void dump_flow_info (FILE *);
+extern void dump_flow_info (FILE *, int);
/* In expmed.c */
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 rtx fis_get_condition (rtx);
-extern int gcse_main (rtx, FILE *);
-extern int bypass_jumps (FILE *);
-
-/* In postreload-gcse.c */
-extern void gcse_after_reload_main (rtx);
/* In global.c */
extern void mark_elimination (int, int);
-extern int global_alloc (FILE *);
extern void dump_global_regs (FILE *);
#ifdef HARD_CONST
/* Yes, this ifdef is silly, but HARD_REG_SET is not always defined. */
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 regclass (rtx, 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 bool invalid_mode_change_p (unsigned int, enum reg_class,
enum machine_mode);
-/* In regmove.c */
-extern void regmove_optimize (rtx, int, FILE *);
-extern void combine_stack_adjustments (void);
-
/* In reorg.c */
-extern void dbr_schedule (rtx, FILE *);
+extern void dbr_schedule (rtx);
/* In local-alloc.c */
extern void dump_local_alloc (FILE *);
-extern int local_alloc (void);
-/* In reg-stack.c */
-extern bool reg_to_stack (FILE *);
+/* In reload1.c */
+extern int function_invariant_p (rtx);
/* In calls.c */
enum libcall_type
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;
extern int read_dependence (rtx, rtx);
extern int anti_dependence (rtx, rtx);
extern int output_dependence (rtx, rtx);
-extern void mark_constant_function (void);
extern void init_alias_once (void);
extern void init_alias_analysis (void);
extern void end_alias_analysis (void);
/* In toplev.c */
extern GTY(()) rtx stack_limit_rtx;
-/* In regrename.c */
-extern void regrename_optimize (void);
-extern void copyprop_hardreg_forward (void);
-
-/* In ifcvt.c */
-extern void if_convert (int);
-
/* In predict.c */
extern void invert_br_probabilities (rtx);
extern bool expensive_function_p (int);
/* In loop-iv.c */
extern rtx canon_condition (rtx);
extern void simplify_using_condition (rtx, rtx *, struct bitmap_head_def *);
-
-/* In ra.c. */
-extern void reg_alloc (void);
-
-/* In modulo-sched.c. */
-extern void sms_schedule (FILE *);
\f
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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