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glsl/list: Add an exec_list_is_singular() helper. 

Similar to list_is_singular() in util/list.h.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Kenneth Graunke 2019-04-08 11:10:08 -07:00
parent 376c3e8f87
commit 08dc93c67c
1 changed files with 7 additions and 0 deletions
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7
src/compiler/glsl/list.h
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@ -372,6 +372,13 @@ exec_list_is_empty(const struct exec_list *list)
return list->head_sentinel.next == &list->tail_sentinel;
}
static inline bool
exec_list_is_singular(const struct exec_list *list)
{
return !exec_list_is_empty(list) &&
list->head_sentinel.next->next == &list->tail_sentinel;
}
static inline const struct exec_node *
exec_list_get_head_const(const struct exec_list *list)
{