/* 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
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
This file is part of GCC.
} mem_attrs;
/* Structure used to describe the attributes of a REG in similar way as
- mem_attrs does for MEM above. */
+ mem_attrs does for MEM above. Note that the OFFSET field is calculated
+ in the same way as for mem_attrs, rather than in the same way as a
+ SUBREG_BYTE. For example, if a big-endian target stores a byte
+ object in the low part of a 4-byte register, the OFFSET field
+ will be -3 rather than 0. */
typedef struct reg_attrs GTY(())
{
In a CODE_LABEL, part of the two-bit alternate entry field. */
unsigned int jump : 1;
/* In a CODE_LABEL, part of the two-bit alternate entry field.
- 1 in a MEM if it cannot trap. */
+ 1 in a MEM if it cannot trap.
+ 1 in a CALL_INSN logically equivalent to
+ ECF_LOOPING_CONST_OR_PURE and DECL_LOOPING_CONST_OR_PURE_P. */
unsigned int call : 1;
/* 1 in a REG, MEM, or CONCAT if the value is set at most once, anywhere.
1 in a SUBREG if it references an unsigned object whose mode has been
from a promoted to a wider mode.
1 in a SYMBOL_REF if it addresses something in the per-function
constants pool.
- 1 in a CALL_INSN, NOTE, or EXPR_LIST for a const or pure call.
+ 1 in a CALL_INSN logically equivalent to ECF_CONST and TREE_READONLY.
+ 1 in a NOTE, or EXPR_LIST for a const call.
1 in a JUMP_INSN, CALL_INSN, or INSN of an annulling branch. */
unsigned int unchanging : 1;
/* 1 in a MEM or ASM_OPERANDS expression if the memory reference is volatile.
1 in a REG expression if corresponds to a variable declared by the user,
0 for an internally generated temporary.
1 in a SUBREG with a negative value.
- 1 in a LABEL_REF or in a REG_LABEL note for a non-local label.
+ 1 in a LABEL_REF, REG_LABEL_TARGET or REG_LABEL_OPERAND note for a
+ non-local label.
In a SYMBOL_REF, this flag is used for machine-specific purposes. */
unsigned int volatil : 1;
/* 1 in a MEM referring to a field of an aggregate.
unsigned frame_related : 1;
/* 1 in a REG or PARALLEL that is the current function's return value.
1 in a MEM if it refers to a scalar.
- 1 in a SYMBOL_REF for a weak symbol. */
+ 1 in a SYMBOL_REF for a weak symbol.
+ 1 in a CALL_INSN logically equivalent to ECF_PURE and DECL_PURE_P. */
unsigned return_val : 1;
/* The first element of the operands of this rtx.
(RTL_FLAG_CHECK6("INSN_DELETED_P", (RTX), INSN, CALL_INSN, JUMP_INSN, \
CODE_LABEL, BARRIER, NOTE)->volatil)
+/* 1 if RTX is a call to a const function. Built from ECF_CONST and
+ TREE_READONLY. */
+#define RTL_CONST_CALL_P(RTX) \
+ (RTL_FLAG_CHECK1("RTL_CONST_CALL_P", (RTX), CALL_INSN)->unchanging)
+
+/* 1 if RTX is a call to a pure function. Built from ECF_PURE and
+ DECL_PURE_P. */
+#define RTL_PURE_CALL_P(RTX) \
+ (RTL_FLAG_CHECK1("RTL_PURE_CALL_P", (RTX), CALL_INSN)->return_val)
+
/* 1 if RTX is a call to a const or pure function. */
-#define CONST_OR_PURE_CALL_P(RTX) \
- (RTL_FLAG_CHECK3("CONST_OR_PURE_CALL_P", (RTX), CALL_INSN, NOTE, \
- EXPR_LIST)->unchanging)
+#define RTL_CONST_OR_PURE_CALL_P(RTX) \
+ (RTL_CONST_CALL_P(RTX) || RTL_PURE_CALL_P(RTX))
+
+/* 1 if RTX is a call to a looping const or pure function. Built from
+ ECF_LOOPING_CONST_OR_PURE and DECL_LOOPING_CONST_OR_PURE_P. */
+#define RTL_LOOPING_CONST_OR_PURE_CALL_P(RTX) \
+ (RTL_FLAG_CHECK1("CONST_OR_PURE_CALL_P", (RTX), CALL_INSN)->call)
/* 1 if RTX is a call_insn for a sibling call. */
#define SIBLING_CALL_P(RTX) \
#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);
extern bool subreg_offset_representable_p (unsigned int, enum machine_mode,
unsigned int, enum machine_mode);
extern unsigned int subreg_regno (const_rtx);
+extern int simplify_subreg_regno (unsigned int, enum machine_mode,
+ unsigned int, enum machine_mode);
extern unsigned int subreg_nregs (const_rtx);
+extern unsigned int subreg_nregs_with_regno (unsigned int, 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);
XSTR (XCVECEXP (RTX, 4, N, ASM_OPERANDS), 0)
#define ASM_OPERANDS_INPUT_MODE(RTX, N) \
GET_MODE (XCVECEXP (RTX, 4, N, ASM_OPERANDS))
-#ifdef USE_MAPPED_LOCATION
#define ASM_OPERANDS_SOURCE_LOCATION(RTX) XCUINT (RTX, 5, ASM_OPERANDS)
#define ASM_INPUT_SOURCE_LOCATION(RTX) XCUINT (RTX, 1, ASM_INPUT)
-#else
-#define ASM_OPERANDS_SOURCE_FILE(RTX) XCSTR (RTX, 5, ASM_OPERANDS)
-#define ASM_OPERANDS_SOURCE_LINE(RTX) XCINT (RTX, 6, ASM_OPERANDS)
-#define ASM_INPUT_SOURCE_FILE(RTX) XCSTR (RTX, 1, ASM_INPUT)
-#define ASM_INPUT_SOURCE_LINE(RTX) XCINT (RTX, 2, ASM_INPUT)
-#endif
/* 1 if RTX is a mem that is statically allocated in read-only memory. */
#define MEM_READONLY_P(RTX) \
refer to part of a DECL. */
#define REG_EXPR(RTX) (REG_ATTRS (RTX) == 0 ? 0 : REG_ATTRS (RTX)->decl)
-/* For a MEM rtx, the offset from the start of MEM_DECL, if known, as a
- RTX that is always a CONST_INT. */
+/* For a REG rtx, the offset from the start of REG_EXPR, if known, as an
+ HOST_WIDE_INT. */
#define REG_OFFSET(RTX) (REG_ATTRS (RTX) == 0 ? 0 : REG_ATTRS (RTX)->offset)
/* Copy the attributes that apply to memory locations from RHS to LHS. */
MEM_ATTRS (LHS) = MEM_ATTRS (RHS))
/* 1 if RTX is a label_ref for a nonlocal label. */
-/* Likewise in an expr_list for a reg_label note. */
+/* Likewise in an expr_list for a REG_LABEL_OPERAND or
+ REG_LABEL_TARGET note. */
#define LABEL_REF_NONLOCAL_P(RTX) \
- (RTL_FLAG_CHECK2("LABEL_REF_NONLOCAL_P", (RTX), LABEL_REF, \
- REG_LABEL)->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 copy_insn (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_mem (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 adjust_reg_mode (rtx, enum machine_mode);
extern int mem_expr_equal_p (const_tree, const_tree);
/* In rtl.c */
extern rtx gen_reg_rtx (enum machine_mode);
extern rtx gen_rtx_REG_offset (rtx, enum machine_mode, unsigned int, int);
extern rtx gen_reg_rtx_offset (rtx, enum machine_mode, int);
+extern rtx gen_reg_rtx_and_attrs (rtx);
extern rtx gen_label_rtx (void);
extern rtx gen_lowpart_common (enum machine_mode, rtx);
enum machine_mode);
extern unsigned int subreg_highpart_offset (enum machine_mode,
enum machine_mode);
+extern int byte_lowpart_offset (enum machine_mode, enum machine_mode);
extern rtx make_safe_from (rtx, rtx);
extern rtx convert_memory_address (enum machine_mode, rtx);
extern rtx get_insns (void);
/* In function.c */
extern rtx assign_stack_local (enum machine_mode, HOST_WIDE_INT, int);
+extern rtx assign_stack_local_1 (enum machine_mode, HOST_WIDE_INT, int, bool);
extern rtx assign_stack_temp (enum machine_mode, HOST_WIDE_INT, int);
extern rtx assign_stack_temp_for_type (enum machine_mode,
HOST_WIDE_INT, int, tree);
extern rtx emit_barrier (void);
extern rtx emit_note (enum insn_note);
extern rtx emit_note_copy (rtx);
+extern rtx gen_clobber (rtx);
+extern rtx emit_clobber (rtx);
+extern rtx gen_use (rtx);
+extern rtx emit_use (rtx);
extern rtx make_insn_raw (rtx);
extern rtx make_jump_insn_raw (rtx);
extern void add_function_usage_to (rtx, 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 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 const_note_stores (const_rtx, void (*) (const_rtx, const_rtx, const void *), const void *);
extern void note_uses (rtx *, void (*) (rtx *, void *), void *);
extern int dead_or_set_p (const_rtx, const_rtx);
extern int dead_or_set_regno_p (const_rtx, unsigned int);
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 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 side_effects_p (const_rtx);
extern int volatile_refs_p (const_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. */
/* 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 *);
-
-/* regclass.c */
-
+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 *);
+
+
+/* reginfo.c */
+
+/* Initialize may_move_cost and friends for mode M. */
+extern void init_move_cost (enum machine_mode);
+/* Allocate register info memory. */
+extern void allocate_reg_info (void);
+/* Resize reg info. */
+extern void resize_reg_info (void);
/* Free up register info memory. */
extern void free_reg_info (void);
extern enum reg_class reg_preferred_class (int);
extern enum reg_class reg_alternate_class (int);
+extern void setup_reg_classes (int, enum reg_class, enum reg_class);
extern void split_all_insns (void);
extern unsigned int split_all_insns_noflow (void);
#ifndef GENERATOR_FILE
#include "genrtl.h"
#undef gen_rtx_ASM_INPUT
-#ifdef USE_MAPPED_LOCATION
#define gen_rtx_ASM_INPUT(MODE, ARG0) \
gen_rtx_fmt_si (ASM_INPUT, (MODE), (ARG0), 0)
#define gen_rtx_ASM_INPUT_loc(MODE, ARG0, LOC) \
gen_rtx_fmt_si (ASM_INPUT, (MODE), (ARG0), (LOC))
-#else
-#define gen_rtx_ASM_INPUT(MODE, ARG0) \
- gen_rtx_fmt_ssi (ASM_INPUT, (MODE), (ARG0), "", 0)
-#define gen_rtx_ASM_INPUT_loc(MODE, ARG0, LOC) \
- gen_rtx_fmt_ssi (ASM_INPUT, (MODE), (ARG0), (LOC).file, (LOC).line)
-#undef gen_rtx_ASM_OPERANDS
-#define gen_rtx_ASM_OPERANDS(MODE, ARG0, ARG1, ARG2, ARG3, ARG4, LOC) \
- gen_rtx_fmt_ssiEEsi (ASM_OPERANDS, (MODE), (ARG0), (ARG1), (ARG2), (ARG3), (ARG4), (LOC).file, (LOC).line)
-#endif
#endif
/* There are some RTL codes that require special attention; the
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 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 bool can_copy_p (enum machine_mode);
extern rtx fis_get_condition (rtx);
-/* In global.c */
-extern void mark_elimination (int, int);
-extern void dump_global_regs (FILE *);
+/* In ira.c */
#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);
+extern HARD_REG_SET eliminable_regset;
#endif
-extern void build_insn_chain (rtx);
+extern void mark_elimination (int, int);
-/* 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);
/* In reorg.c */
extern void dbr_schedule (rtx);
-/* In local-alloc.c */
-extern void dump_local_alloc (FILE *);
-
/* In reload1.c */
extern int function_invariant_p (const_rtx);
LCT_NORMAL = 0,
LCT_CONST = 1,
LCT_PURE = 2,
- LCT_CONST_MAKE_BLOCK = 3,
- LCT_PURE_MAKE_BLOCK = 4,
- LCT_NORETURN = 5,
- LCT_THROW = 6,
- LCT_RETURNS_TWICE = 7
+ LCT_NORETURN = 3,
+ LCT_THROW = 4,
+ LCT_RETURNS_TWICE = 5
};
extern void emit_library_call (rtx, enum libcall_type, enum machine_mode, int,
extern bool expensive_function_p (int);
/* In cfgexpand.c */
extern void add_reg_br_prob_note (rtx last, int probability);
-/* In tracer.c */
-extern void tracer (void);
/* In var-tracking.c */
extern unsigned int variable_tracking_main (void);
/* 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 */