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"
+#include "vec.h"
#undef FFS /* Some systems predefine this symbol; don't let it interfere. */
#undef FLOAT /* Likewise. */
extern const enum rtx_class rtx_class[NUM_RTX_CODE];
#define GET_RTX_CLASS(CODE) (rtx_class[(int) (CODE)])
-extern const unsigned char rtx_size[NUM_RTX_CODE];
+extern const unsigned char rtx_code_size[NUM_RTX_CODE];
extern const unsigned char rtx_next[NUM_RTX_CODE];
\f
/* The flags and bitfields of an ADDR_DIFF_VEC. BASE is the base label
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;
+/* This structure remembers the position of a SYMBOL_REF within an
+ object_block structure. A SYMBOL_REF only provides this information
+ if SYMBOL_REF_HAS_BLOCK_INFO_P is true. */
+struct block_symbol GTY(()) {
+ /* The usual SYMBOL_REF fields. */
+ rtunion GTY ((skip)) fld[3];
+
+ /* The block that contains this object. */
+ struct object_block *block;
+
+ /* The offset of this object from the start of its block. It is negative
+ if the symbol has not yet been assigned an offset. */
+ HOST_WIDE_INT offset;
+};
+
+DEF_VEC_P(rtx);
+DEF_VEC_ALLOC_P(rtx,heap);
+DEF_VEC_ALLOC_P(rtx,gc);
+
+/* Describes a group of objects that are to be placed together in such
+ a way that their relative positions are known. */
+struct object_block GTY(())
+{
+ /* The section in which these objects should be placed. */
+ section *sect;
+
+ /* The alignment of the first object, measured in bits. */
+ unsigned int alignment;
+
+ /* The total size of the objects, measured in bytes. */
+ HOST_WIDE_INT size;
+
+ /* The SYMBOL_REFs for each object. The vector is sorted in
+ order of increasing offset and the following conditions will
+ hold for each element X:
+
+ SYMBOL_REF_HAS_BLOCK_INFO_P (X)
+ !SYMBOL_REF_ANCHOR_P (X)
+ SYMBOL_REF_BLOCK (X) == [address of this structure]
+ SYMBOL_REF_BLOCK_OFFSET (X) >= 0. */
+ VEC(rtx,gc) *objects;
+
+ /* All the anchor SYMBOL_REFs used to address these objects, sorted
+ in order of increasing offset, and then increasing TLS model.
+ The following conditions will hold for each element X in this vector:
+
+ SYMBOL_REF_HAS_BLOCK_INFO_P (X)
+ SYMBOL_REF_ANCHOR_P (X)
+ SYMBOL_REF_BLOCK (X) == [address of this structure]
+ SYMBOL_REF_BLOCK_OFFSET (X) >= 0. */
+ VEC(rtx,gc) *anchors;
+};
+
/* RTL expression ("rtx"). */
struct rtx_def GTY((chain_next ("RTX_NEXT (&%h)"),
union u {
rtunion fld[1];
HOST_WIDE_INT hwint[1];
+ struct block_symbol block_sym;
+ struct real_value rv;
} GTY ((special ("rtx_def"), desc ("GET_CODE (&%0)"))) u;
};
#define RTX_HDR_SIZE offsetof (struct rtx_def, u)
/* The size in bytes of an rtx with code CODE. */
-#define RTX_SIZE(CODE) rtx_size[CODE]
+#define RTX_CODE_SIZE(CODE) rtx_code_size[CODE]
#define NULL_RTX (rtx) 0
__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; })
+
+#define BLOCK_SYMBOL_CHECK(RTX) __extension__ \
+({ rtx const _symbol = (RTX); \
+ 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,
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 rtl_check_failed_block_symbol (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)
+#define BLOCK_SYMBOL_CHECK(RTX) (&(RTX)->u.block_sym)
#endif
#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) \
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)
extern unsigned int subreg_regno (rtx);
extern unsigned HOST_WIDE_INT nonzero_bits (rtx, enum machine_mode);
extern unsigned int num_sign_bit_copies (rtx, enum machine_mode);
+extern bool constant_pool_constant_p (rtx);
+extern bool truncated_to_mode (enum machine_mode, rtx);
/* 1 if RTX is a subreg containing a reg that is already known to be
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.
#define SYMBOL_FLAG_EXTERNAL (1 << 6)
#define SYMBOL_REF_EXTERNAL_P(RTX) \
((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_EXTERNAL) != 0)
+/* Set if this symbol has a block_symbol structure associated with it. */
+#define SYMBOL_FLAG_HAS_BLOCK_INFO (1 << 7)
+#define SYMBOL_REF_HAS_BLOCK_INFO_P(RTX) \
+ ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_HAS_BLOCK_INFO) != 0)
+/* Set if this symbol is a section anchor. SYMBOL_REF_ANCHOR_P implies
+ SYMBOL_REF_HAS_BLOCK_INFO_P. */
+#define SYMBOL_FLAG_ANCHOR (1 << 8)
+#define SYMBOL_REF_ANCHOR_P(RTX) \
+ ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_ANCHOR) != 0)
/* Subsequent bits are available for the target to use. */
-#define SYMBOL_FLAG_MACH_DEP_SHIFT 7
+#define SYMBOL_FLAG_MACH_DEP_SHIFT 9
#define SYMBOL_FLAG_MACH_DEP (1 << SYMBOL_FLAG_MACH_DEP_SHIFT)
+/* If SYMBOL_REF_HAS_BLOCK_INFO_P (RTX), this is the object_block
+ structure to which the symbol belongs, or NULL if it has not been
+ assigned a block. */
+#define SYMBOL_REF_BLOCK(RTX) (BLOCK_SYMBOL_CHECK (RTX)->block)
+
+/* If SYMBOL_REF_HAS_BLOCK_INFO_P (RTX), this is the offset of RTX from
+ the first object in SYMBOL_REF_BLOCK (RTX). The value is negative if
+ RTX has not yet been assigned to a block, or it has not been given an
+ offset within that block. */
+#define SYMBOL_REF_BLOCK_OFFSET(RTX) (BLOCK_SYMBOL_CHECK (RTX)->offset)
+
/* Define a macro to look for REG_INC notes,
but save time on machines where they never exist. */
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);
#define shallow_copy_rtx(a) shallow_copy_rtx_stat (a MEM_STAT_INFO)
extern int rtx_equal_p (rtx, rtx);
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 enum rtx_code unsigned_condition (enum rtx_code);
extern enum rtx_code signed_condition (enum rtx_code);
extern void mark_jump_label (rtx, rtx, int);
-extern void cleanup_barriers (void);
+extern unsigned int cleanup_barriers (void);
/* In jump.c */
extern bool squeeze_notes (rtx *, rtx *);
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 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 rtx replace_rtx (rtx, rtx, rtx);
extern rtx replace_regs (rtx, rtx *, unsigned int, int);
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 insns_safe_to_move_p (rtx, rtx, rtx *);
extern int loc_mentioned_in_p (rtx *, rtx);
extern rtx find_first_parameter_load (rtx, rtx);
extern bool keep_with_call_p (rtx);
extern enum reg_class reg_alternate_class (int);
extern void split_all_insns (int);
-extern void split_all_insns_noflow (void);
+extern unsigned int split_all_insns_noflow (void);
#define MAX_SAVED_CONST_INT 64
extern GTY(()) rtx const_int_rtx[MAX_SAVED_CONST_INT * 2 + 1];
/* 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);
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 unsigned int purge_line_number_notes (void);
/* In emit-rtl.c. */
extern int max_reg_num (void);
extern void push_topmost_sequence (void);
extern void pop_topmost_sequence (void);
extern void set_new_first_and_last_insn (rtx, rtx);
-extern void unshare_all_rtl (void);
+extern unsigned int unshare_all_rtl (void);
extern void unshare_all_rtl_again (rtx);
extern void unshare_all_rtl_in_chain (rtx);
extern void verify_rtl_sharing (void);
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 remove_unnecessary_notes (void);
+extern void renumber_insns (void);
+extern unsigned int remove_unnecessary_notes (void);
extern rtx delete_insn (rtx);
extern rtx entry_of_function (void);
extern void delete_insn_chain (rtx, 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);
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 (void);
-extern int initialize_uninitialized_subregs (void);
+extern unsigned int 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);
/* 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_fake_stack_mems (void);
extern void init_reg_sets (void);
extern void regclass_init (void);
-extern void regclass (rtx, int, FILE *);
+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 void record_subregs_of_mode (rtx);
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
enum machine_mode, int, ...);
/* 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 traverse_md_constants (int (*) (void **, void *), void *);
struct md_constant { char *name, *value; };
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);
extern void tracer (unsigned int);
/* In var-tracking.c */
-extern void variable_tracking_main (void);
+extern unsigned int variable_tracking_main (void);
/* In stor-layout.c. */
extern void get_mode_bounds (enum machine_mode, int, enum machine_mode,
/* 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
{
unsigned HOST_WIDE_INT, unsigned HOST_WIDE_INT *);
rtx (*reg_num_sign_bit_copies) (rtx, enum machine_mode, rtx, enum machine_mode,
unsigned int, unsigned int *);
+ bool (*reg_truncated_to_mode) (enum machine_mode, rtx);
- /* Whenever you add entries here, make sure you adjust hosthooks-def.h. */
+ /* Whenever you add entries here, make sure you adjust rtlhooks-def.h. */
};
/* Each pass can provide its own. */
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