1 files changed, 25 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/recover-atomics-islockfree.js b/js/src/jit-test/tests/ion/recover-atomics-islockfree.js
new file mode 100644
index 0000000000..2a57afd49b
--- /dev/null
+++ b/js/src/jit-test/tests/ion/recover-atomics-islockfree.js
@@ -0,0 +1,25 @@
+// |jit-test| --fast-warmup; --ion-offthread-compile=off
+
+function foo(n, trigger) {
+  let result = Atomics.isLockFree(n * -1);
+  if (trigger) {
+    assertEq(result, false);
+  }
+}
+
+for (var i = 0; i < 100; i++) {
+  foo(-50, false);
+}
+foo(0, true);
+
+function bar(n, trigger) {
+  let result = Atomics.isLockFree(n * 4);
+  if (trigger) {
+    assertEq(result, false);
+  }
+}
+
+for (var i = 0; i < 100; i++) {
+  bar(1, false);
+}
+bar(0x40000001, true);