tree-streamer.c (streamer_tree_cache_insert_1): Update the index associated with the tree we are supposed to replace.

2013-06-05  Richard Biener  <rguenther@suse.de>

	* tree-streamer.c (streamer_tree_cache_insert_1): Update the
	index associated with the tree we are supposed to replace.
	* tree-streamer-out.c (pack_ts_base_value_fields): Output
	TREE_ASM_WRITTEN as zero for everything but SSA names.

	lto/
	* lto.c (num_merged_types): New global variable.
	(uniquify_nodes): Increase num_merged_types when merging a type.
	(print_lto_report_1): Output the number of merged types.

From-SVN: r199683

gcc/ChangeLog

@@ -1,3 +1,10 @@
+2013-06-05  Richard Biener  <rguenther@suse.de>
+
+	* tree-streamer.c (streamer_tree_cache_insert_1): Update the
+	index associated with the tree we are supposed to replace.
+	* tree-streamer-out.c (pack_ts_base_value_fields): Output
+	TREE_ASM_WRITTEN as zero for everything but SSA names.
+
 2013-06-05  David Malcolm  <dmalcolm@redhat.com>
 
 	* tree-ssa-structalias.c (call_stmt_vars): Make static.

gcc/lto/ChangeLog

@@ -1,3 +1,9 @@
+2013-06-05  Richard Biener  <rguenther@suse.de>
+
+	* lto.c (num_merged_types): New global variable.
+	(uniquify_nodes): Increase num_merged_types when merging a type.
+	(print_lto_report_1): Output the number of merged types.
+
 2013-06-01  Jan Hubicka  <jh@suse.cz>
 
 	* lto.c (read_cgraph_and_symbols): Simplify dumping; Replace

gcc/lto/lto.c

@@ -1788,6 +1788,7 @@ lto_register_function_decl_in_symtab (struct data_in *data_in, tree decl)
     }
 }
 
+static unsigned long num_merged_types = 0;
 
 /* Given a streamer cache structure DATA_IN (holding a sequence of trees
    for one compilation unit) go over all trees starting at index FROM until the
@@ -1817,7 +1818,10 @@ uniquify_nodes (struct data_in *data_in, unsigned from)
 	     to reset that flag afterwards - nothing that refers
 	     to those types is left and they are collected.  */
 	  if (newt != t)
-	    TREE_VISITED (t) = 1;
+	    {
+	      num_merged_types++;
+	      TREE_VISITED (t) = 1;
+	    }
 	}
     }
 
@@ -3136,6 +3140,7 @@ print_lto_report_1 (void)
 	     htab_collisions (type_hash_cache));
   else
     fprintf (stderr, "[%s] GIMPLE type hash cache table is empty\n", pfx);
+  fprintf (stderr, "[%s] Merged %lu types\n", pfx, num_merged_types);
 
   print_gimple_types_stats (pfx);
   print_lto_report (pfx);

gcc/tree-streamer-out.c

@@ -87,8 +87,9 @@ pack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
     bp_pack_value (bp, TYPE_UNSIGNED (expr), 1);
   else
     bp_pack_value (bp, 0, 1);
-  /* We write debug info two times, do not confuse the second one.  */
+  /* We write debug info two times, do not confuse the second one.
-  bp_pack_value (bp, ((TYPE_P (expr) || TREE_CODE (expr) == TYPE_DECL)
+     The only relevant TREE_ASM_WRITTEN use is on SSA names.  */
+  bp_pack_value (bp, (TREE_CODE (expr) != SSA_NAME
 		      ? 0 : TREE_ASM_WRITTEN (expr)), 1);
   if (TYPE_P (expr))
     bp_pack_value (bp, TYPE_ARTIFICIAL (expr), 1);

gcc/tree-streamer.c

@@ -152,6 +152,7 @@ streamer_tree_cache_insert_1 (struct streamer_tree_cache_d *cache,
 	     the requested location slot.  */
 	  ix = *ix_p;
 	  streamer_tree_cache_add_to_node_array (cache, ix, t);
+	  *slot = (void *)(size_t) (ix + 1);
 	}
 
       /* Indicate that T was already in the cache.  */