add N_NONE

1 files changed, 1 insertions, 0 deletions

diff --git a/ir.h b/ir.h
index 681f3ae..251c198 100644
--- a/ir.h
+++ b/ir.h
@@ -47,6 +47,7 @@ void type_err(struct Node *n, Lexer *l);
 /* nodes */
 
 typedef enum {
+	N_NONE,
 	N_START,
 	N_PROJ,
 	N_RETURN,