1 files changed, 38 insertions, 0 deletions
diff --git a/test/typecheck/pass/exist_pattern.sail b/test/typecheck/pass/exist_pattern.sail
new file mode 100644
index 00000000..46913de4
--- /dev/null
+++ b/test/typecheck/pass/exist_pattern.sail
@@ -0,0 +1,38 @@
+default Order inc
+
+register nat n
+register nat x
+register nat y
+
+typedef wordsize = exist 'n, 'n IN {8,16,32}. [|'n|]
+let (wordsize) word = ([|8|]) 8
+
+function nat main () = {
+
+  (* works - x and y are set to 42 *)
+  n := 1;
+  y :=
+  (switch n {
+    case 0 -> { x := 21; x }
+    case 1 -> { x := 42; x }
+    case z -> { x := 99; x }
+  });
+
+  switch word {
+    case ([|8|]) 8 -> { x:= 32; }
+    case ([|16|]) 16 -> { x:= 64; }
+    case ([|32|]) 32 -> { x:= 128; }
+  };
+
+  switch 0b010101 {
+    case (0b01:(bit[1]) _:0b101) -> n:= 42
+    case _ -> n:=0
+  };
+
+  n := 3;
+  switch n {
+    case 0 -> { 21 }
+    case 1 -> { 42 }
+    case u -> { 99 }
+  };
+}