X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fana%2Firdom.h;h=12af2371b5b9175d0ce5c653cbb8bb89b3000349;hb=73eef69c89c2181e7ed3a2f7c09cdaa0f6d997e5;hp=dddfddda18e06e720e70e44883df1d908f7d4c44;hpb=dddcc630819f338c3b45e2bc646233e6872d5bb6;p=libfirm

diff --git a/ir/ana/irdom.h b/ir/ana/irdom.h
index dddfddda1..12af2371b 100644
--- a/ir/ana/irdom.h
+++ b/ir/ana/irdom.h
@@ -33,10 +33,12 @@
 # include "irnode.h"
 
 
-/* Accessing the dominator datastructure.
+/** Accessing the dominator datastructure.
  *
  * These routines only work properly if the ir_graph is in state
  * dom_consistent or dom_inconsistent.
+ *
+ * If the block is not reachable from Start, returns a Bad node.
  */
 ir_node *get_Block_idom(ir_node *bl);
 void set_Block_idom(ir_node *bl, ir_node *n);