tree-inline.c (estimate_num_insns): For calls simply account for all passed…

tree-inline.c (estimate_num_insns): For calls simply account for all passed arguments and a used return value.

2011-04-06  Richard Guenther  <rguenther@suse.de>

	* tree-inline.c (estimate_num_insns): For calls simply account
	for all passed arguments and a used return value.

From-SVN: r172024

gcc/ChangeLog

 2011-04-06  Richard Guenther  <rguenther@suse.de>
 
+	* tree-inline.c (estimate_num_insns): For calls simply account
+	for all passed arguments and a used return value.
+
+2011-04-06  Richard Guenther  <rguenther@suse.de>
+ 
 	PR tree-optimization/47663
 	* cgraph.h (struct cgraph_edge): Add call_stmt_size and
 	call_stmt_time fields.

gcc/tree-inline.c

@@ -3470,12 +3470,6 @@ estimate_num_insns (gimple stmt, eni_weights *weights)
     case GIMPLE_CALL:
       {
 	tree decl = gimple_call_fndecl (stmt);
-	tree addr = gimple_call_fn (stmt);
-	tree funtype = TREE_TYPE (addr);
-	bool stdarg = false;
-
-	if (POINTER_TYPE_P (funtype))
-	  funtype = TREE_TYPE (funtype);
 
 	/* Do not special case builtins where we see the body.
 	   This just confuse inliner.  */
@@ -3511,49 +3505,13 @@ estimate_num_insns (gimple stmt, eni_weights *weights)
 	  }
 
 	cost = weights->call_cost;
-	if (decl)
-	  funtype = TREE_TYPE (decl);
-
-	if (!VOID_TYPE_P (TREE_TYPE (funtype))
-	    && gimple_call_lhs (stmt))
-	  cost += estimate_move_cost (TREE_TYPE (funtype));
-
-	if (funtype)
-	  stdarg = stdarg_p (funtype);
-
-	/* Our cost must be kept in sync with
-	   cgraph_estimate_size_after_inlining that does use function
-	   declaration to figure out the arguments.
-
-	   For functions taking variable list of arguments we must
-	   look into call statement intself.  This is safe because
-	   we will get only higher costs and in most cases we will
-	   not inline these anyway.  */
-	if (decl && DECL_ARGUMENTS (decl) && !stdarg)
-	  {
-	    tree arg;
-	    for (arg = DECL_ARGUMENTS (decl); arg; arg = DECL_CHAIN (arg))
-	      if (!VOID_TYPE_P (TREE_TYPE (arg)))
-	        cost += estimate_move_cost (TREE_TYPE (arg));
-	  }
-	else if (funtype && prototype_p (funtype) && !stdarg)
-	  {
-	    tree t;
-	    for (t = TYPE_ARG_TYPES (funtype); t && t != void_list_node;
-	    	 t = TREE_CHAIN (t))
-	      if (!VOID_TYPE_P (TREE_VALUE (t)))
-	        cost += estimate_move_cost (TREE_VALUE (t));
-	  }
-	else
-	  {
+	if (gimple_call_lhs (stmt))
+	  cost += estimate_move_cost (TREE_TYPE (gimple_call_lhs (stmt)));
 	for (i = 0; i < gimple_call_num_args (stmt); i++)
 	  {
 	    tree arg = gimple_call_arg (stmt, i);
-	        if (!VOID_TYPE_P (TREE_TYPE (arg)))
 	    cost += estimate_move_cost (TREE_TYPE (arg));
 	  }
-	  }
-
 	break;
       }