Jib: Add types to Phi functions

Add a test case to ensure variable types in l-expressions remain the
same with flow-sensitive constraints.

2 files changed, 24 insertions, 0 deletions

diff --git a/test/c/flow_restrict.expect b/test/c/flow_restrict.expect
new file mode 100644
index 00000000..9766475a
--- /dev/null
+++ b/test/c/flow_restrict.expect
@@ -0,0 +1 @@
+ok
diff --git a/test/c/flow_restrict.sail b/test/c/flow_restrict.sail
new file mode 100644
index 00000000..ef2ec412
--- /dev/null
+++ b/test/c/flow_restrict.sail
@@ -0,0 +1,23 @@
+default Order dec
+
+$include <flow.sail>
+$include <exception_basic.sail>
+
+val "print_endline" : string -> unit
+
+register R : bool
+
+function main((): unit) -> unit = {
+  R = false;
+  let 'x = 3180327502475943573495720457203572045720485720458724;
+  y : range(0, 'x) = 1;
+  if R then {
+    assert(constraint('x <= 2));
+    y = 2;
+    let z = y;
+    let x = 2;
+    ()
+  } else {
+    print_endline("ok")
+  }
+}