* decl.c (build_enumerator): Do not issue duplicate error messages

[pf3gnuchains/gcc-fork.git] / gcc / cfgloop.h

diff --git a/gcc/cfgloop.h b/gcc/cfgloop.h
index 61af717..1562736 100644 (file)
--- a/gcc/cfgloop.h
+++ b/gcc/cfgloop.h
@@ -144,7 +144,7 @@ struct loop
   void *aux;
 
   /* The following are currently used by loop.c but they are likely to
-     disappear as loop.c is converted to use the CFG.  */
+     disappear when loop.c is replaced and removed.  */
 
   /* The NOTE_INSN_LOOP_BEG.  */
   rtx start;
@@ -217,16 +217,16 @@ struct loops
   /* Number of natural loops in the function.  */
   unsigned num;
 
-  /* Maximum nested loop level in the function.  */
-  unsigned levels;
-
   /* Array of natural loop descriptors (scanning this array in reverse order
      will find the inner loops before their enclosing outer loops).  */
   struct loop *array;
 
   /* The above array is unused in new loop infrastructure and is kept only for
      purposes of the old loop optimizer.  Instead we store just pointers to
-     loops here.  */
+     loops here.  
+     Note that a loop in this array may actually be NULL, if the loop
+     has been removed and the entire loops structure has not been
+     recomputed since that time.  */
   struct loop **parray;
 
   /* Pointer to root of loop hierarchy tree.  */
@@ -265,7 +265,6 @@ extern struct loops *current_loops;
 
 /* Loop recognition.  */
 extern int flow_loops_find (struct loops *, int flags);
-extern int flow_loops_update (struct loops *, int flags);
 extern void flow_loops_free (struct loops *);
 extern void flow_loops_dump (const struct loops *, FILE *,
                             void (*)(const struct loop *, FILE *, int), int);
@@ -275,8 +274,6 @@ extern int flow_loop_scan (struct loop *, int);
 extern void flow_loop_free (struct loop *);
 void mark_irreducible_loops (struct loops *);
 void mark_single_exit_loops (struct loops *);
-void update_single_exits_after_duplication (basic_block *, unsigned,
-                                           struct loop *);
 extern void create_loop_notes (void);
 
 /* Loop data structure manipulation/querying.  */
@@ -338,7 +335,6 @@ extern int duplicate_loop_to_header_edge (struct loop *, edge, struct loops *,
                                          unsigned *, int);
 extern struct loop *loopify (struct loops *, edge, edge,
                             basic_block, edge, edge, bool);
-extern void unloop (struct loops *, struct loop *);
 extern bool remove_path (struct loops *, edge);
 extern edge split_loop_bb (basic_block, void *);
 
@@ -438,8 +434,6 @@ extern bool iv_analyze (rtx, rtx, struct rtx_iv *);
 extern rtx get_iv_value (struct rtx_iv *, rtx);
 extern bool biv_p (rtx, rtx);
 extern void find_simple_exit (struct loop *, struct niter_desc *);
-extern void iv_number_of_iterations (struct loop *, rtx, rtx,
-                                    struct niter_desc *);
 extern void iv_analysis_done (void);
 
 extern struct niter_desc *get_simple_loop_desc (struct loop *loop);