basic-block.h (compute_available): Returns a void now.

        * basic-block.h (compute_available): Returns a void now.
        * gcse.c (one_classic_gcse_pass): Do not expect compute_available
        to return a value anymore.
        * lcm.c (compute_available, compute_antinout_edge): Revamp to use
        worklists.  Fix boundary cases. Compute maximal solutions.
        (compute_laterin, compute_nearerout): Similarly.

From-SVN: r30482

gcc/ChangeLog

@@ -4,6 +4,13 @@ Wed Nov 10 21:24:19 1999  Jason Eckhardt  <jle@cygnus.com>
 
 Wed Nov 10 15:56:16 1999  Jeffrey A Law  (law@cygnus.com)
 
+	* basic-block.h (compute_available): Returns a void now.
+	* gcse.c (one_classic_gcse_pass): Do not expect compute_available
+	to return a value anymore.
+	* lcm.c (compute_available, compute_antinout_edge): Revamp to use
+	worklists.  Fix boundary cases. Compute maximal solutions.
+	(compute_laterin, compute_nearerout): Similarly.
+
         * dwarf2out.c (add_AT_location_description): Allow
         (mem (plus (pseudo) (...)) too.
 

gcc/basic-block.h

@@ -328,7 +328,7 @@ extern struct edge_list *pre_edge_rev_lcm PROTO ((FILE *, int, sbitmap *,
 						  sbitmap *, sbitmap *, 
 						  sbitmap *, sbitmap **, 
 						  sbitmap **));
-extern int compute_available		PROTO ((sbitmap *, sbitmap *,
+extern void compute_available		PROTO ((sbitmap *, sbitmap *,
 						sbitmap *, sbitmap *));
 
 /* In emit-rtl.c.  */

gcc/gcse.c

@@ -3404,15 +3404,12 @@ one_classic_gcse_pass (pass)
 		     expr_hash_table_size, n_exprs);
   if (n_exprs > 0)
     {
-      int passes;
       compute_kill_rd ();
       compute_rd ();
       alloc_avail_expr_mem (n_basic_blocks, n_exprs);
       compute_ae_gen ();
       compute_ae_kill (ae_gen, ae_kill);
-      passes = compute_available (ae_gen, ae_kill, ae_out, ae_in);
-      if (gcse_file)
-	fprintf (gcse_file, "avail expr computation: %d passes\n", passes);
+      compute_available (ae_gen, ae_kill, ae_out, ae_in);
       changed = classic_gcse ();
       free_avail_expr_mem ();
     }