1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/fac.js b/js/src/jit-test/tests/wasm/fac.js
new file mode 100644
index 000000000..d5847c957
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/fac.js
@@ -0,0 +1,21 @@
+load(libdir + "wasm.js");
+
+// This is fac-opt from fac.wast in the official testsuite, changed to use
+// i32 instead of i64.
+assertEq(wasmEvalText(`(module
+  (func $fac-opt (param i32) (result i32)
+    (local i32)
+    (set_local 1 (i32.const 1))
+    (block
+      (br_if 0 (i32.lt_s (get_local 0) (i32.const 2)))
+      (loop
+        (set_local 1 (i32.mul (get_local 1) (get_local 0)))
+        (set_local 0 (i32.add (get_local 0) (i32.const -1)))
+        (br_if 0 (i32.gt_s (get_local 0) (i32.const 1)))
+      )
+    )
+    (get_local 1)
+  )
+
+  (export "" 0)
+)`).exports[""](10), 3628800);