1 files changed, 23 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/single-cpu.js b/js/src/jit-test/tests/wasm/single-cpu.js
new file mode 100644
index 0000000000..afc4beee84
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/single-cpu.js
@@ -0,0 +1,23 @@
+// |jit-test| --test-wasm-await-tier2; --cpu-count=1
+
+// Test that compilation works when there's only one core available.
+
+// 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)
+    (local.set 1 (i32.const 1))
+    (block
+      (br_if 0 (i32.lt_s (local.get 0) (i32.const 2)))
+      (loop
+        (local.set 1 (i32.mul (local.get 1) (local.get 0)))
+        (local.set 0 (i32.add (local.get 0) (i32.const -1)))
+        (br_if 0 (i32.gt_s (local.get 0) (i32.const 1)))
+      )
+    )
+    (local.get 1)
+  )
+
+  (export "" (func 0))
+)`).exports[""](10), 3628800);