re PR lto/47799 (LTO debug info for early inlined functions missing)

2012-09-28  Richard Guenther  <rguenther@suse.de>

	PR lto/47799
	* lto-streamer-out.c (tree_is_indexable): Make PARM_DECLs global.
	(lto_output_tree_ref): Handle references to them.
	(output_function): Do not output function arguments again.
	* lto-streamer-in.c (input_function): Do not input arguments
	again, nor overwrite them.

From-SVN: r191824

gcc/ChangeLog

 2012-09-28  Richard Guenther  <rguenther@suse.de>
 
+	PR lto/47799
+	* lto-streamer-out.c (tree_is_indexable): Make PARM_DECLs global.
+	(lto_output_tree_ref): Handle references to them.
+	(output_function): Do not output function arguments again.
+	* lto-streamer-in.c (input_function): Do not input arguments
+	again, nor overwrite them.
+
+2012-09-28  Richard Guenther  <rguenther@suse.de>
+
 	* cgraph.h (symtab_node_base): Re-order and pack fields.
 
 2012-09-28  Georg-Johann Lay  <avr@gjlay.de>

gcc/lto-streamer-in.c

@@ -823,7 +823,6 @@ input_function (tree fn_decl, struct data_in *data_in,
   gimple *stmts;
   basic_block bb;
   struct cgraph_node *node;
-  tree args, narg, oarg;
 
   fn = DECL_STRUCT_FUNCTION (fn_decl);
   tag = streamer_read_record_start (ib);
@@ -834,22 +833,6 @@ input_function (tree fn_decl, struct data_in *data_in,
 
   input_struct_function_base (fn, data_in, ib);
 
-  /* Read all function arguments.  We need to re-map them here to the
-     arguments of the merged function declaration.  */
-  args = stream_read_tree (ib, data_in);
-  for (oarg = args, narg = DECL_ARGUMENTS (fn_decl);
-       oarg && narg;
-       oarg = TREE_CHAIN (oarg), narg = TREE_CHAIN (narg))
-    {
-      unsigned ix;
-      bool res;
-      res = streamer_tree_cache_lookup (data_in->reader_cache, oarg, &ix);
-      gcc_assert (res);
-      /* Replace the argument in the streamer cache.  */
-      streamer_tree_cache_insert_at (data_in->reader_cache, narg, ix);
-    }
-  gcc_assert (!oarg && !narg);
-
   /* Read all the SSA names.  */
   input_ssa_names (ib, data_in, fn);
 

gcc/lto-streamer-out.c

@@ -125,7 +125,7 @@ static bool
 tree_is_indexable (tree t)
 {
   if (TREE_CODE (t) == PARM_DECL)
-    return false;
+    return true;
   else if (TREE_CODE (t) == VAR_DECL && decl_function_context (t)
 	   && !TREE_STATIC (t))
     return false;
@@ -237,6 +237,7 @@ lto_output_tree_ref (struct output_block *ob, tree expr)
     case VAR_DECL:
     case DEBUG_EXPR_DECL:
       gcc_assert (decl_function_context (expr) == NULL || TREE_STATIC (expr));
+    case PARM_DECL:
       streamer_write_record_start (ob, LTO_global_decl_ref);
       lto_output_var_decl_index (ob->decl_state, ob->main_stream, expr);
       break;
@@ -806,9 +807,6 @@ output_function (struct cgraph_node *node)
 
   output_struct_function_base (ob, fn);
 
-  /* Output the head of the arguments list.  */
-  stream_write_tree (ob, DECL_ARGUMENTS (function), true);
-
   /* Output all the SSA names used in the function.  */
   output_ssa_names (ob, fn);