avr.c (avr_set_current_function): Check cfun->machine to be non-NULL.

	* config/avr/avr.c (avr_set_current_function): Check cfun->machine
	to be non-NULL.

From-SVN: r191715

gcc/ChangeLog

 2012-09-25  Georg-Johann Lay  <avr@gjlay.de>
 
+	* config/avr/avr.c (avr_set_current_function): Check cfun->machine
+	to be non-NULL.
+
+2012-09-25  Georg-Johann Lay  <avr@gjlay.de>
+
 	PR target/54641
 	* config/avr/t-avr: Use ALL_COMPILERFLAGS instead of ALL_CFLAGS
 	for sources compiled with COMPILER.

gcc/config/avr/avr.c

@@ -550,6 +550,7 @@ avr_set_current_function (tree decl)
   if (decl == NULL_TREE
       || current_function_decl == NULL_TREE
       || current_function_decl == error_mark_node
+      || ! cfun->machine
       || cfun->machine->attributes_checked_p)
     return;