calls.c (expand_call): Handle current_function_pretend_args_size when checking for sibcalls.

	* calls.c (expand_call): Handle current_function_pretend_args_size
	when checking for sibcalls.

From-SVN: r99113

gcc/ChangeLog

+2005-05-02  Daniel Jacobowitz  <dan@codesourcery.com>
+
+	* calls.c (expand_call): Handle current_function_pretend_args_size
+	when checking for sibcalls.
+
 2005-05-02  Kazu Hirata  <kazu@cs.umass.edu>
 
 	PR tree-optimization/21294

gcc/calls.c

@@ -2197,8 +2197,11 @@ expand_call (tree exp, rtx target, int ignore)
          the argument areas are shared.  */
       || (fndecl && decl_function_context (fndecl) == current_function_decl)
       /* If this function requires more stack slots than the current
-	 function, we cannot change it into a sibling call.  */
-      || args_size.constant > current_function_args_size
+	 function, we cannot change it into a sibling call.
+	 current_function_pretend_args_size is not part of the
+	 stack allocated by our caller.  */
+      || args_size.constant > (current_function_args_size
+			       - current_function_pretend_args_size)
       /* If the callee pops its own arguments, then it must pop exactly
 	 the same number of arguments as the current function.  */
       || (RETURN_POPS_ARGS (fndecl, funtype, args_size.constant)