when we access a component.
1 in a CALL_INSN if it is a sibling call.
1 in a SET that is for a return.
- In a CODE_LABEL, part of the two-bit alternate entry field. */
+ In a CODE_LABEL, part of the two-bit alternate entry field.
+ 1 in a CONCAT is VAL_EXPR_IS_COPIED in var-tracking.c. */
unsigned int jump : 1;
/* In a CODE_LABEL, part of the two-bit alternate entry field.
1 in a MEM if it cannot trap.
constants pool.
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. */
+ 1 in a JUMP_INSN of an annulling branch.
+ 1 in a CONCAT is VAL_EXPR_IS_CLOBBERED in var-tracking.c.
+ 1 in a preserved VALUE is PRESERVED_VALUE_P in cselib.c. */
unsigned int unchanging : 1;
/* 1 in a MEM or ASM_OPERANDS expression if the memory reference is volatile.
1 in an INSN, CALL_INSN, JUMP_INSN, CODE_LABEL, BARRIER, or NOTE
non-local label.
In a SYMBOL_REF, this flag is used for machine-specific purposes.
In a PREFETCH, this flag indicates that it should be considered a scheduling
- barrier. */
+ barrier.
+ 1 in a CONCAT is VAL_NEEDS_RESOLUTION in var-tracking.c. */
unsigned int volatil : 1;
/* 1 in a MEM referring to a field of an aggregate.
0 if the MEM was a variable or the result of a * operator in C;
In a REG, this is not needed for that purpose, and used instead
in `leaf_renumber_regs_insn'.
1 in a SYMBOL_REF, means that emit_library_call
- has used it as the function. */
+ has used it as the function.
+ 1 in a CONCAT is VAL_HOLDS_TRACK_EXPR in var-tracking.c.
+ 1 in a VALUE or DEBUG_EXPR is VALUE_RECURSED_INTO in var-tracking.c. */
unsigned int used : 1;
/* 1 in an INSN or a SET if this rtx is related to the call frame,
either changing how we compute the frame address or saving and
restoring registers in the prologue and epilogue.
1 in a REG or MEM if it is a pointer.
1 in a SYMBOL_REF if it addresses something in the per-function
- constant string pool. */
+ constant string pool.
+ 1 in a VALUE is VALUE_CHANGED in var-tracking.c. */
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 CALL_INSN logically equivalent to ECF_PURE and DECL_PURE_P. */
+ 1 in a CALL_INSN logically equivalent to ECF_PURE and DECL_PURE_P.
+ 1 in a CONCAT is VAL_EXPR_HAS_REVERSE in var-tracking.c.
+ 1 in a VALUE or DEBUG_EXPR is NO_LOC_P in var-tracking.c. */
unsigned return_val : 1;
/* The first element of the operands of this rtx.
(JUMP_P (INSN) && (GET_CODE (PATTERN (INSN)) == ADDR_VEC || \
GET_CODE (PATTERN (INSN)) == ADDR_DIFF_VEC))
-/* Predicate yielding nonzero iff X is a return. */
-#define ANY_RETURN_P(X) ((X) == ret_rtx)
+/* Predicate yielding nonzero iff X is a return or simple_return. */
+#define ANY_RETURN_P(X) \
+ (GET_CODE (X) == RETURN || GET_CODE (X) == SIMPLE_RETURN)
/* 1 if X is a unary operator. */
/* 1 if RTX is a jump_insn, call_insn, or insn that is an annulling branch. */
#define INSN_ANNULLED_BRANCH_P(RTX) \
- (RTL_FLAG_CHECK3("INSN_ANNULLED_BRANCH_P", (RTX), JUMP_INSN, CALL_INSN, INSN)->unchanging)
+ (RTL_FLAG_CHECK1("INSN_ANNULLED_BRANCH_P", (RTX), JUMP_INSN)->unchanging)
/* 1 if RTX is an insn in a delay slot and is from the target of the branch.
If the branch insn has INSN_ANNULLED_BRANCH_P set, this insn should only be
extern rtx prev_active_insn (rtx);
extern rtx next_active_insn (rtx);
extern int active_insn_p (const_rtx);
-extern rtx prev_label (rtx);
extern rtx next_label (rtx);
extern rtx skip_consecutive_labels (rtx);
extern rtx next_cc0_user (rtx);
/* In emit-rtl.c */
extern rtx set_unique_reg_note (rtx, enum reg_note, rtx);
+extern rtx set_dst_reg_note (rtx, enum reg_note, rtx, rtx);
extern void set_insn_deleted (rtx);
/* Functions in rtlanal.c */
extern int refers_to_regno_p (unsigned int, unsigned int, const_rtx, rtx *);
extern int reg_overlap_mentioned_p (const_rtx, const_rtx);
extern const_rtx set_of (const_rtx, const_rtx);
+extern void record_hard_reg_sets (rtx, const_rtx, void *);
+extern void record_hard_reg_uses (rtx *, void *);
+#ifdef HARD_CONST
+extern void find_all_hard_reg_sets (const_rtx, HARD_REG_SET *);
+#endif
extern void note_stores (const_rtx, void (*) (rtx, const_rtx, void *), void *);
extern void note_uses (rtx *, void (*) (rtx *, void *), void *);
extern int dead_or_set_p (const_rtx, const_rtx);
/* lists.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 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 copy_INSN_LIST (rtx);
+extern rtx concat_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 *);
#define constm1_rtx (const_int_rtx[MAX_SAVED_CONST_INT-1])
extern GTY(()) rtx const_true_rtx;
-extern GTY(()) rtx const_tiny_rtx[3][(int) MAX_MACHINE_MODE];
+extern GTY(()) rtx const_tiny_rtx[4][(int) MAX_MACHINE_MODE];
/* Returns a constant 0 rtx in mode MODE. Integer modes are treated the
same as VOIDmode. */
#define CONST0_RTX(MODE) (const_tiny_rtx[0][(int) (MODE)])
-/* Likewise, for the constants 1 and 2. */
+/* Likewise, for the constants 1 and 2 and -1. */
#define CONST1_RTX(MODE) (const_tiny_rtx[1][(int) (MODE)])
#define CONST2_RTX(MODE) (const_tiny_rtx[2][(int) (MODE)])
+#define CONSTM1_RTX(MODE) (const_tiny_rtx[3][(int) (MODE)])
/* If HARD_FRAME_POINTER_REGNUM is defined, then a special dummy reg
is used to represent the frame pointer. This is because the
GR_PC,
GR_CC0,
GR_RETURN,
+ GR_SIMPLE_RETURN,
GR_STACK_POINTER,
GR_FRAME_POINTER,
/* For register elimination to work properly these hard_frame_pointer_rtx,
/* Standard pieces of rtx, to be substituted directly into things. */
#define pc_rtx (global_rtl[GR_PC])
#define ret_rtx (global_rtl[GR_RETURN])
+#define simple_return_rtx (global_rtl[GR_SIMPLE_RETURN])
#define cc0_rtx (global_rtl[GR_CC0])
/* All references to certain hard regs, except those created
extern unsigned hash_rtx (const_rtx x, enum machine_mode, int *, int *, bool);
/* In dse.c */
-extern void check_for_inc_dec (rtx insn);
+extern bool check_for_inc_dec (rtx insn);
/* In jump.c */
extern int comparison_dominates_p (enum rtx_code, enum rtx_code);
extern void mark_temp_addr_taken (rtx);
extern void update_temp_slot_address (rtx, rtx);
extern void maybe_copy_prologue_epilogue_insn (rtx, rtx);
+extern void set_return_jump_label (rtx);
/* In stmt.c */
extern void expand_null_return (void);
/* In expr.c */
extern rtx move_by_pieces (rtx, rtx, unsigned HOST_WIDE_INT,
unsigned int, int);
+extern HOST_WIDE_INT find_args_size_adjust (rtx);
extern int fixup_args_size_notes (rtx, rtx, int);
/* In cfgrtl.c */
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