1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/bigint/bigint-pow-bailout.js b/js/src/jit-test/tests/bigint/bigint-pow-bailout.js
new file mode 100644
index 0000000000..f88f6762dd
--- /dev/null
+++ b/js/src/jit-test/tests/bigint/bigint-pow-bailout.js
@@ -0,0 +1,31 @@
+// |jit-test| --ion-warmup-threshold=20
+
+function testBailout() {
+  function f(v, r) {
+    for (var i = 0; i < 50; ++i) {
+      // Ensure DCE and LICM don't eliminate exponentiation when the power is negative.
+      if (i === 0) {
+        r();
+      }
+      1n ** v;
+      1n ** v;
+      1n ** v;
+    }
+  }
+
+  var result = [];
+  function r() {
+    result.push("ok");
+  }
+
+  do {
+    result.length = 0;
+    try {
+      f(1n, r);
+      f(1n, r);
+      f(-1n, r);
+    } catch (e) {}
+    assertEq(result.length, 3);
+  } while (!inIon());
+}
+testBailout();