PR rtl-optimization/28071

[pf3gnuchains/gcc-fork.git] / gcc / tree-iterator.c

diff --git a/gcc/tree-iterator.c b/gcc/tree-iterator.c
index ad2b47e..77e2345 100644 (file)
--- a/gcc/tree-iterator.c
+++ b/gcc/tree-iterator.c
@@ -289,7 +289,8 @@ tsi_split_statement_list_before (tree_stmt_iterator *i)
   STATEMENT_LIST_TAIL (new_sl) = STATEMENT_LIST_TAIL (old_sl);
   STATEMENT_LIST_TAIL (old_sl) = prev;
   cur->prev = NULL;
-  prev->next = NULL;
+  if (prev)
+    prev->next = NULL;
 
   return new_sl;
 }