/* Register Transfer Language (RTL) definitions for GCC
Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
This file is part of GCC.
/* ALIGN and SIZE are the alignment and size of the MEM itself,
while EXPR can describe a larger underlying object, which might have a
stricter alignment; OFFSET is the offset of the MEM within that object. */
-typedef struct mem_attrs GTY(())
+typedef struct GTY(()) mem_attrs
{
- 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. */
+ alias_set_type alias; /* Memory alias set. */
unsigned int align; /* Alignment of MEM in bits. */
} mem_attrs;
object in the low part of a 4-byte register, the OFFSET field
will be -3 rather than 0. */
-typedef struct reg_attrs GTY(())
-{
+typedef struct GTY(()) reg_attrs {
tree decl; /* decl corresponding to REG. */
HOST_WIDE_INT offset; /* Offset from start of DECL. */
} reg_attrs;
/* 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(()) {
+struct GTY(()) block_symbol {
/* The usual SYMBOL_REF fields. */
rtunion GTY ((skip)) fld[3];
/* 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(())
-{
+struct GTY(()) object_block {
/* The section in which these objects should be placed. */
section *sect;
/* RTL expression ("rtx"). */
-struct rtx_def GTY((chain_next ("RTX_NEXT (&%h)"),
- chain_prev ("RTX_PREV (&%h)")))
-{
+struct GTY((chain_next ("RTX_NEXT (&%h)"),
+ chain_prev ("RTX_PREV (&%h)"))) rtx_def {
/* The kind of expression this is. */
ENUM_BITFIELD(rtx_code) code: 16;
for a variable number of things. The principle use is inside
PARALLEL expressions. */
-struct rtvec_def GTY(()) {
+struct GTY(()) rtvec_def {
int num_elem; /* number of elements */
rtx GTY ((length ("%h.num_elem"))) elem[1];
};
#define BLOCK_FOR_INSN(INSN) XBBDEF (INSN, 3)
#define INSN_LOCATOR(INSN) XINT (INSN, 4)
+/* LOCATION of an RTX if relevant. */
+#define RTL_LOCATION(X) (INSN_P (X) ? \
+ locator_location (INSN_LOCATOR (x)) \
+ : UNKNOWN_LOCATION)
+/* LOCATION of current INSN. */
+#define CURR_INSN_LOCATION (locator_location (curr_insn_locator ()))
/* The body of an insn. */
#define PATTERN(INSN) XEXP (INSN, 5)
/* Initialization status of the variable in the location. Status
can be unknown, uninitialized or initialized. See enumeration
type below. */
-#define NOTE_VAR_LOCATION_STATUS(INSN) (XCINT (XCEXP (INSN, 4, NOTE), \
- 2, VAR_LOCATION))
+#define NOTE_VAR_LOCATION_STATUS(INSN) \
+ ((enum var_init_status) (XCINT (XCEXP (INSN, 4, NOTE), 2, VAR_LOCATION)))
/* Possible initialization status of a variable. When requested
by the user, this information is tracked and recorded in the DWARF
#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 int rtx_cost (rtx, enum rtx_code, bool);
+extern int address_cost (rtx, enum machine_mode, bool);
extern unsigned int subreg_lsb (const_rtx);
extern unsigned int subreg_lsb_1 (enum machine_mode, enum machine_mode,
unsigned int);
} while (0)
#define SUBREG_PROMOTED_UNSIGNED_P(RTX) \
((RTL_FLAG_CHECK1("SUBREG_PROMOTED_UNSIGNED_P", (RTX), SUBREG)->volatil) \
- ? -1 : (RTX)->unchanging)
+ ? -1 : (int) (RTX)->unchanging)
/* Access various components of an ASM_OPERANDS rtx. */
/* Likewise in an expr_list for a REG_LABEL_OPERAND or
REG_LABEL_TARGET note. */
#define LABEL_REF_NONLOCAL_P(RTX) \
- (RTL_FLAG_CHECK3("LABEL_REF_NONLOCAL_P", (RTX), LABEL_REF, \
- REG_LABEL_OPERAND, REG_LABEL_TARGET)->volatil)
+ (RTL_FLAG_CHECK1("LABEL_REF_NONLOCAL_P", (RTX), LABEL_REF)->volatil)
/* 1 if RTX is a code_label that should always be considered to be needed. */
#define LABEL_PRESERVE_P(RTX) \
extern rtx gen_int_mode (HOST_WIDE_INT, enum machine_mode);
extern rtx emit_copy_of_insn_after (rtx, rtx);
extern void set_reg_attrs_from_value (rtx, rtx);
-extern void set_mem_attrs_from_reg (rtx, rtx);
extern void set_reg_attrs_for_parm (rtx, rtx);
+extern void set_reg_attrs_for_decl_rtl (tree t, rtx x);
extern void adjust_reg_mode (rtx, enum machine_mode);
extern int mem_expr_equal_p (const_tree, const_tree);
extern rtx next_insn (rtx);
extern rtx prev_nonnote_insn (rtx);
extern rtx next_nonnote_insn (rtx);
+extern rtx next_nonnote_insn_bb (rtx);
extern rtx prev_real_insn (rtx);
extern rtx next_real_insn (rtx);
extern rtx prev_active_insn (rtx);
/* In cfglayout.c */
extern int insn_line (const_rtx);
extern const char * insn_file (const_rtx);
+extern location_t locator_location (int);
extern int locator_line (int);
extern const char * locator_file (int);
+extern bool locator_eq (int, int);
extern int prologue_locator, epilogue_locator;
/* In jump.c */
extern rtx avoid_constant_pool_reference (rtx);
extern bool mode_signbit_p (enum machine_mode, const_rtx);
-/* In regclass.c */
+/* In reginfo.c */
extern enum machine_mode choose_hard_reg_mode (unsigned int, unsigned int,
bool);
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 rtx alloc_reg_note (enum reg_note, rtx, rtx);
extern void add_reg_note (rtx, enum reg_note, rtx);
extern void remove_note (rtx, const_rtx);
extern void remove_reg_equal_equiv_notes (rtx);
extern int volatile_insn_p (const_rtx);
extern int may_trap_p_1 (const_rtx, unsigned);
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 rtx_referenced_p (rtx, 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 *);
+
+typedef int (*rtx_equal_p_callback_function) (const_rtx *, const_rtx *,
+ rtx *, rtx *);
+extern int rtx_equal_p_cb (const_rtx, const_rtx,
+ rtx_equal_p_callback_function);
+
+typedef int (*hash_rtx_callback_function) (const_rtx, enum machine_mode, rtx *,
+ enum machine_mode *);
+extern unsigned hash_rtx_cb (const_rtx, enum machine_mode, int *, int *,
+ bool, hash_rtx_callback_function);
+
extern rtx regno_use_in (unsigned int, rtx);
extern int auto_inc_p (const_rtx);
extern int in_expr_list_p (const_rtx, const_rtx);
extern rtx find_first_parameter_load (rtx, rtx);
extern bool keep_with_call_p (const_rtx);
extern bool label_is_jump_target_p (const_rtx, const_rtx);
-extern int insn_rtx_cost (rtx);
+extern int insn_rtx_cost (rtx, bool);
/* Given an insn and condition, return a canonical description of
the test being made. */
being made. */
extern rtx get_condition (rtx, rtx *, int, int);
+/* Information about a subreg of a hard register. */
+struct subreg_info
+{
+ /* Offset of first hard register involved in the subreg. */
+ int offset;
+ /* Number of hard registers involved in the subreg. */
+ int nregs;
+ /* Whether this subreg can be represented as a hard reg with the new
+ mode. */
+ bool representable_p;
+};
+
+extern void subreg_get_info (unsigned int, enum machine_mode,
+ unsigned int, enum machine_mode,
+ struct subreg_info *);
+
/* lists.c */
-void free_EXPR_LIST_list (rtx *);
-void free_INSN_LIST_list (rtx *);
-void free_EXPR_LIST_node (rtx);
-void free_INSN_LIST_node (rtx);
-rtx alloc_INSN_LIST (rtx, rtx);
-rtx alloc_EXPR_LIST (int, rtx, rtx);
-void remove_free_INSN_LIST_elem (rtx, rtx *);
-rtx remove_list_elem (rtx, rtx *);
+extern void free_EXPR_LIST_list (rtx *);
+extern void free_INSN_LIST_list (rtx *);
+extern void free_EXPR_LIST_node (rtx);
+extern void free_INSN_LIST_node (rtx);
+extern rtx alloc_INSN_LIST (rtx, rtx);
+extern rtx alloc_EXPR_LIST (int, rtx, rtx);
+extern void remove_free_INSN_LIST_elem (rtx, rtx *);
+extern rtx remove_list_elem (rtx, rtx *);
+extern rtx remove_free_INSN_LIST_node (rtx *);
+extern rtx remove_free_EXPR_LIST_node (rtx *);
+
-/* regclass.c */
+/* reginfo.c */
/* Initialize may_move_cost and friends for mode M. */
extern void init_move_cost (enum machine_mode);
extern rtx condjump_label (const_rtx);
extern int simplejump_p (const_rtx);
extern int returnjump_p (rtx);
+extern int eh_returnjump_p (rtx);
extern int onlyjump_p (const_rtx);
extern int only_sets_cc0_p (const_rtx);
extern int sets_cc0_p (const_rtx);
extern void delete_insn_chain (rtx, rtx, bool);
extern rtx unlink_insn_chain (rtx, rtx);
extern rtx delete_insn_and_edges (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 void delete_dead_jumptables (void);
/* In sched-vis.c. */
-extern void print_insn (char *, rtx, int);
+extern void debug_bb_n_slim (int);
+extern void debug_bb_slim (struct basic_block_def *);
+extern void print_rtl_slim (FILE *, rtx, rtx, int, int);
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 haifa-sched.c. */
extern void fix_sched_param (const char *, const char *);
+/* In sel-sched-dump.c. */
+extern void sel_sched_fix_param (const char *param, const char *val);
+
/* In print-rtl.c */
extern const char *print_rtx_head;
extern void debug_rtx (const_rtx);
extern int sibcall_epilogue_contains (const_rtx);
extern void mark_temp_addr_taken (rtx);
extern void update_temp_slot_address (rtx, rtx);
+extern void maybe_copy_epilogue_insn (rtx, rtx);
/* In stmt.c */
extern void expand_null_return (void);
/* In gcse.c */
extern bool can_copy_p (enum machine_mode);
+extern bool can_assign_to_reg_without_clobbers_p (rtx);
extern rtx fis_get_condition (rtx);
-/* In global.c */
+/* In ira.c */
#ifdef HARD_CONST
extern HARD_REG_SET eliminable_regset;
#endif
extern void mark_elimination (int, int);
-extern void dump_global_regs (FILE *);
-#ifdef HARD_CONST
-/* Yes, this ifdef is silly, but HARD_REG_SET is not always defined. */
-extern void retry_global_alloc (int, HARD_REG_SET);
-#endif
-extern void build_insn_chain (void);
-/* In regclass.c */
+/* In reginfo.c */
extern int reg_classes_intersect_p (enum reg_class, enum reg_class);
extern int reg_class_subset_p (enum reg_class, enum reg_class);
extern void globalize_reg (int);
extern void init_reg_modes_target (void);
extern void init_regs (void);
+extern void reinit_regs (void);
extern void init_fake_stack_mems (void);
extern void save_register_info (void);
extern void init_reg_sets (void);
extern void regclass (rtx, int);
extern void reg_scan (rtx, unsigned int);
extern void fix_register (const char *, int, int);
-#ifdef HARD_CONST
-extern void cannot_change_mode_set_regs (HARD_REG_SET *,
- enum machine_mode, unsigned int);
-#endif
extern bool invalid_mode_change_p (unsigned int, enum reg_class,
enum machine_mode);
/* In reorg.c */
extern void dbr_schedule (rtx);
-/* In local-alloc.c */
-extern void dump_local_alloc (FILE *);
-extern int update_equiv_regs (void);
-
/* In reload1.c */
extern int function_invariant_p (const_rtx);
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 (const_rtx, enum machine_mode, rtx, const_rtx,
- bool (*)(const_rtx, bool));
+ 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);
/* In loop-iv.c */
extern rtx canon_condition (rtx);
extern void simplify_using_condition (rtx, rtx *, struct bitmap_head_def *);
+
+/* In final.c */
+extern unsigned int compute_alignments (void);
\f
struct rtl_hooks
{
#define gen_lowpart rtl_hooks.gen_lowpart
extern void insn_locators_alloc (void);
+extern void insn_locators_free (void);
extern void insn_locators_finalize (void);
extern void set_curr_insn_source_location (location_t);
extern void set_curr_insn_block (tree);
extern int curr_insn_locator (void);
+extern bool optimize_insn_for_size_p (void);
+extern bool optimize_insn_for_speed_p (void);
#endif /* ! GCC_RTL_H */
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