* init.c (build_new): Allow enumeration types for the array-bounds

[pf3gnuchains/gcc-fork.git] / gcc / sched-int.h

diff --git a/gcc/sched-int.h b/gcc/sched-int.h
index faa4a8b..2a7eb6a 100644 (file)
--- a/gcc/sched-int.h
+++ b/gcc/sched-int.h
@@ -1,7 +1,7 @@
 /* Instruction scheduling pass.  This file contains definitions used
    internally in the scheduler.
    Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000 Free Software Foundation, Inc.
+   1999, 2000, 2001 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -78,13 +78,24 @@ struct deps
      to ensure that they won't cross a call after scheduling is done.  */
   rtx sched_before_next_call;
 
+  /* The maximum register number for the following arrays.  Before reload
+     this is max_reg_num; after reload it is FIRST_PSEUDO_REGISTER.  */
+  int max_reg;
+
   /* Element N is the next insn that sets (hard or pseudo) register
      N within the current basic block; or zero, if there is no
      such insn.  Needed for new registers which may be introduced
      by splitting insns.  */
-  rtx *reg_last_uses;
-  rtx *reg_last_sets;
-  rtx *reg_last_clobbers;
+  struct deps_reg
+    {
+      rtx uses;
+      rtx sets;
+      rtx clobbers;
+    } *reg_last;
+
+  /* Element N is set for each register that has any non-zero element
+     in reg_last[N].{uses,sets,clobbers}.  */
+  regset_head reg_last_in_use;
 };
 
 /* This structure holds some state of the current scheduling pass, and
@@ -115,6 +126,13 @@ struct sched_info
      static buffer for this.  The ALIGNED parameter should cause the string
      to be formatted so that multiple output lines will line up nicely.  */
   const char *(*print_insn) PARAMS ((rtx, int));
+  /* Return nonzero if an insn should be included in priority
+     calculations.  */
+  int (*contributes_to_priority) PARAMS ((rtx, rtx));
+  /* Called when computing dependencies for a JUMP_INSN.  This function
+     should store the set of registers that must be considered as set by
+     the jump in the regset.  */
+  void (*compute_jump_reg_dependencies) PARAMS ((rtx, regset));
 
   /* The boundaries of the set of insns to be scheduled.  */
   rtx prev_head, next_tail;
@@ -184,13 +202,35 @@ struct haifa_insn_data
 
 extern struct haifa_insn_data *h_i_d;
 
-/* Accessor macros for h_i_d.  There are more in haifa-sched.c.  */
+/* Accessor macros for h_i_d.  There are more in haifa-sched.c and
+   sched-rgn.c.  */
 #define INSN_DEPEND(INSN)      (h_i_d[INSN_UID (INSN)].depend)
 #define INSN_LUID(INSN)                (h_i_d[INSN_UID (INSN)].luid)
 #define CANT_MOVE(insn)                (h_i_d[INSN_UID (insn)].cant_move)
 #define INSN_DEP_COUNT(INSN)   (h_i_d[INSN_UID (INSN)].dep_count)
+#define INSN_PRIORITY(INSN)    (h_i_d[INSN_UID (INSN)].priority)
+#define INSN_COST(INSN)                (h_i_d[INSN_UID (INSN)].cost)
+#define INSN_UNIT(INSN)                (h_i_d[INSN_UID (INSN)].units)
+#define INSN_REG_WEIGHT(INSN)  (h_i_d[INSN_UID (INSN)].reg_weight)
+
+#define INSN_BLOCKAGE(INSN)    (h_i_d[INSN_UID (INSN)].blockage)
+#define UNIT_BITS              5
+#define BLOCKAGE_MASK          ((1 << BLOCKAGE_BITS) - 1)
+#define ENCODE_BLOCKAGE(U, R)                  \
+  (((U) << BLOCKAGE_BITS                       \
+    | MIN_BLOCKAGE_COST (R)) << BLOCKAGE_BITS  \
+   | MAX_BLOCKAGE_COST (R))
+#define UNIT_BLOCKED(B)                ((B) >> (2 * BLOCKAGE_BITS))
+#define BLOCKAGE_RANGE(B)                                                \
+  (((((B) >> BLOCKAGE_BITS) & BLOCKAGE_MASK) << (HOST_BITS_PER_INT / 2)) \
+   | ((B) & BLOCKAGE_MASK))
+
+/* Encodings of the `<name>_unit_blockage_range' function.  */
+#define MIN_BLOCKAGE_COST(R) ((R) >> (HOST_BITS_PER_INT / 2))
+#define MAX_BLOCKAGE_COST(R) ((R) & ((1 << (HOST_BITS_PER_INT / 2)) - 1))
 
 extern FILE *sched_dump;
+extern int sched_verbose;
 
 #ifndef __GNUC__
 #define __inline
@@ -227,7 +267,28 @@ extern void init_dependency_caches PARAMS ((int));
 extern void free_dependency_caches PARAMS ((void));
 
 /* Functions in haifa-sched.c.  */
+extern void get_block_head_tail PARAMS ((int, rtx *, rtx *));
+extern int no_real_insns_p PARAMS ((rtx, rtx));
+
+extern void rm_line_notes PARAMS ((rtx, rtx));
+extern void save_line_notes PARAMS ((int, rtx, rtx));
+extern void restore_line_notes PARAMS ((rtx, rtx));
+extern void rm_redundant_line_notes PARAMS ((void));
+extern void rm_other_notes PARAMS ((rtx, rtx));
+
+extern int insn_issue_delay PARAMS ((rtx));
+extern int set_priorities PARAMS ((rtx, rtx));
+
+extern void schedule_block PARAMS ((int, int));
+extern void sched_init PARAMS ((FILE *));
+extern void sched_finish PARAMS ((void));
+
+extern void ready_add PARAMS ((struct ready_list *, rtx));
+
+/* The following are exported for the benefit of debugging functions.  It
+   would be nicer to keep them private to haifa-sched.c.  */
 extern int insn_unit PARAMS ((rtx));
+extern int insn_cost PARAMS ((rtx, rtx, rtx));
 extern rtx get_unit_last_insn PARAMS ((int));
 extern int actual_hazard_this_instance PARAMS ((int, int, rtx, int, int));