1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/class/bug1720032-1.js b/js/src/jit-test/tests/class/bug1720032-1.js
new file mode 100644
index 0000000000..c2ab722638
--- /dev/null
+++ b/js/src/jit-test/tests/class/bug1720032-1.js
@@ -0,0 +1,29 @@
+// |jit-test| skip-if: getBuildConfiguration()['osx'] && getBuildConfiguration()['arm64']
+load(libdir + "asserts.js");
+function main() {
+  class Base {}
+
+  class Derived extends Base {
+    constructor() {
+      super();
+
+      let v = 0xffff;
+
+      try {
+        // Ensure this statement doesn't get DCE'ed.
+        v &= 0xff;
+
+        // Returning a primitive value throws.
+        return 0;
+      } catch {}
+
+      assertEq(v, 255);
+    }
+  }
+
+  for (let i = 0; i < 15; i++) {
+    assertThrowsInstanceOf(() => new Derived(), TypeError);
+  }
+}
+main();
+main();