optimize_graph_df() now removes superfluous keep-alive edges

[libfirm] / ir / ir / irnodeset.c

diff --git a/ir/ir/irnodeset.c b/ir/ir/irnodeset.c
index f8c93b9..1dc79ef 100644 (file)
--- a/ir/ir/irnodeset.c
+++ b/ir/ir/irnodeset.c
@@ -39,7 +39,7 @@
 #define NullValue                 NULL
 #define DeletedValue              ((ir_node*)-1)
 #ifdef DEBUG_libfirm
-#define Hash(this,value)          (value)->node_nr
+#define Hash(this,value)          ((unsigned)((value)->node_nr))
 #else
 #define Hash(this,value)          HASH_PTR(value)
 #endif