/* 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 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
This file is part of GCC.
/* Predicate yielding nonzero iff X is an rtx for a memory location. */
#define MEM_P(X) (GET_CODE (X) == MEM)
+/* Predicate yielding nonzero iff X is an rtx for a constant integer. */
+#define CONST_INT_P(X) (GET_CODE (X) == CONST_INT)
+
/* Predicate yielding nonzero iff X is a label insn. */
#define LABEL_P(X) (GET_CODE (X) == CODE_LABEL)
#define NOTE_BLOCK(INSN) XCTREE (INSN, 4, NOTE)
#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_VAR_LOCATION(INSN) XCEXP (INSN, 4, NOTE)
/* In a NOTE that is a line number, this is the line number.
The chain eventually winds up at the CODE_LABEL: it is circular. */
#define LABEL_REFS(LABEL) XCEXP (LABEL, 5, CODE_LABEL)
\f
-/* This is the field in the LABEL_REF through which the circular chain
- of references to a particular label is linked.
- FIXME: This chain is used in loop.c and in the SH backend.
- Since loop.c is about to go away, it could be a win to replace
- the uses of this in the SH backend with something else. */
-#define LABEL_NEXTREF(REF) XCEXP (REF, 1, LABEL_REF)
-
/* For a REG rtx, REGNO extracts the register number. ORIGINAL_REGNO holds
the number the register originally had; for a pseudo register turned into
a hard reg this will hold the old pseudo register number. */
/* For a CONST_INT rtx, INTVAL extracts the integer. */
#define INTVAL(RTX) XCWINT(RTX, 0, CONST_INT)
+#define UINTVAL(RTX) ((unsigned HOST_WIDE_INT) INTVAL (RTX))
/* For a CONST_DOUBLE:
For a VOIDmode, there are two integers CONST_DOUBLE_LOW is the
extern bool subreg_offset_representable_p (unsigned int, enum machine_mode,
unsigned int, enum machine_mode);
extern unsigned int subreg_regno (rtx);
+extern unsigned int subreg_nregs (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);
MEM_NOTRAP_P (LHS) = MEM_NOTRAP_P (RHS), \
MEM_READONLY_P (LHS) = MEM_READONLY_P (RHS), \
MEM_KEEP_ALIAS_SET_P (LHS) = MEM_KEEP_ALIAS_SET_P (RHS), \
+ MEM_POINTER (LHS) = MEM_POINTER (RHS), \
MEM_ATTRS (LHS) = MEM_ATTRS (RHS))
-/* 1 if RTX is a label_ref to a label outside the loop containing the
- reference. */
-#define LABEL_OUTSIDE_LOOP_P(RTX) \
- (RTL_FLAG_CHECK1("LABEL_OUTSIDE_LOOP_P", (RTX), LABEL_REF)->in_struct)
-
/* 1 if RTX is a label_ref for a nonlocal label. */
/* Likewise in an expr_list for a reg_label note. */
#define LABEL_REF_NONLOCAL_P(RTX) \
/* In expmed.c */
extern int ceil_log2 (unsigned HOST_WIDE_INT);
-/* In builtins.c */
-extern rtx expand_builtin_expect_jump (tree, rtx, rtx);
-
/* In explow.c */
extern void set_stack_check_libfunc (rtx);
extern HOST_WIDE_INT trunc_int_for_mode (HOST_WIDE_INT, enum machine_mode);
extern rtx emit_barrier_after (rtx);
extern rtx emit_label_after (rtx, rtx);
extern rtx emit_note_after (int, rtx);
-extern rtx emit_note_copy_after (rtx, rtx);
extern rtx emit_insn (rtx);
extern rtx emit_jump_insn (rtx);
extern rtx emit_call_insn (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 replace_label (rtx *, void *);
extern int rtx_referenced_p (rtx, rtx);
extern bool tablejump_p (rtx, rtx *, rtx *);
void free_INSN_LIST_node (rtx);
rtx alloc_INSN_LIST (rtx, rtx);
rtx alloc_EXPR_LIST (int, rtx, rtx);
+void free_DEPS_LIST_list (rtx *);
+rtx alloc_DEPS_LIST (rtx, rtx, int);
+void remove_free_DEPS_LIST_elem (rtx, rtx *);
+void remove_free_INSN_LIST_elem (rtx, rtx *);
+rtx remove_list_elem (rtx, rtx *);
+rtx copy_DEPS_LIST_list (rtx);
/* regclass.c */
extern int reload_in_progress;
+#ifdef STACK_REGS
+/* Nonzero after end of regstack pass.
+ Set to 1 or 0 by reg-stack.c. */
+extern int regstack_completed;
+#endif
+
/* If this is nonzero, we do not bother generating VOLATILE
around volatile memory references, and we are willing to
output indirect addresses. If cse is to follow, we reject
rtx, rtx, rtx);
extern void delete_for_peephole (rtx, rtx);
extern int condjump_in_parallel_p (rtx);
-extern unsigned int purge_line_number_notes (void);
/* In emit-rtl.c. */
extern int max_reg_num (void);
extern void add_insn_before (rtx, rtx);
extern void add_insn_after (rtx, 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 (void);
-extern unsigned int remove_unnecessary_notes (void);
extern rtx delete_insn (rtx);
extern rtx entry_of_function (void);
+extern void emit_insn_at_entry (rtx);
extern void delete_insn_chain (rtx, rtx);
extern rtx unlink_insn_chain (rtx, rtx);
extern rtx delete_insn_and_edges (rtx);
extern int print_rtl_single (FILE *, rtx);
extern void print_inline_rtx (FILE *, rtx, int);
-/* In loop.c */
-extern void init_loop (void);
-
/* In bt-load.c */
extern void branch_target_load_optimize (bool);
unsigned int, int);
/* In flow.c */
-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 *, int);
/* In predict.c */
extern void invert_br_probabilities (rtx);
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 (unsigned int);
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