[Mesa-dev] [PATCH] exec_list: add a list_foreach_typed_reverse() macro

[Connor Abbott]

Signed-off-by: Connor Abbott <connor.abbott at intel.com>
---
 src/glsl/list.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/glsl/list.h b/src/glsl/list.h
index 3ee6cda..c402f48 100644
--- a/src/glsl/list.h
+++ b/src/glsl/list.h
@@ -644,6 +644,12 @@ inline void exec_node::insert_before(exec_list *before)
 	(__node)->__field.next != NULL; 				\
 	(__node) = exec_node_data(__type, (__node)->__field.next, __field))
 
+#define foreach_list_typed_reverse(__type, __node, __field, __list)	\
+   for (__type * __node =						\
+	   exec_node_data(__type, (__list)->tail_pred, __field);	\
+	(__node)->__field.prev != NULL; 				\
+	(__node) = exec_node_data(__type, (__node)->__field.prev, __field))
+
 #define foreach_list_typed_safe(__type, __node, __field, __list)           \
    for (__type * __node =                                                  \
            exec_node_data(__type, (__list)->head, __field),                \
-- 
1.9.3