Add forgotten recursive function test

1 files changed, 15 insertions, 0 deletions

diff --git a/test/typecheck/pass/recursion.sail b/test/typecheck/pass/recursion.sail
new file mode 100644
index 00000000..5ca85f53
--- /dev/null
+++ b/test/typecheck/pass/recursion.sail
@@ -0,0 +1,15 @@
+default Order dec
+
+$include <prelude.sail>
+
+val log2 : int -> int
+
+function log2(n) =
+  if n <= 1 then 0 else 1 + log2(n/2)
+
+termination_measure log2(n) = n
+
+val testlog2 : unit -> unit effect {escape}
+
+function testlog2() =
+  assert(log2(64) == 6)