opt: Enable BFTW_STAT when profitable

1 files changed, 2 insertions, 0 deletions

diff --git a/src/expr.h b/src/expr.h
index 4d607a4..349e052 100644
--- a/src/expr.h
+++ b/src/expr.h
@@ -110,6 +110,8 @@ struct bfs_expr {
 	bool always_true;
 	/** Whether this expression always evaluates to false. */
 	bool always_false;
+	/** Whether this expression uses stat(). */
+	bool calls_stat;
 
 	/** Estimated cost. */
 	float cost;