1 files changed, 34 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/recover-empty-new-object.js b/js/src/jit-test/tests/ion/recover-empty-new-object.js
new file mode 100644
index 000000000..a34f0d36f
--- /dev/null
+++ b/js/src/jit-test/tests/ion/recover-empty-new-object.js
@@ -0,0 +1,34 @@
+// |jit-test| test-join=--no-unboxed-objects
+//
+// Unboxed object optimization might not trigger in all cases, thus we ensure
+// that Sink optimization is working well independently of the
+// object representation.
+
+// Ion eager fails the test below because we have not yet created any
+// template object in baseline before running the content of the top-level
+// function.
+if (getJitCompilerOptions()["ion.warmup.trigger"] <= 20)
+    setJitCompilerOption("ion.warmup.trigger", 20);
+
+// These arguments have to be computed by baseline, and thus captured in a
+// resume point. The next function checks that we can remove the computation of
+// these arguments.
+function f(a, b, c, d) { }
+
+function topLevel() {
+    for (var i = 0; i < 30; i++) {
+        var unused = {};
+        var a = {};
+        var b = {};
+        var c = {};
+        var d = {};
+        assertRecoveredOnBailout(unused, true);
+        assertRecoveredOnBailout(a, true);
+        assertRecoveredOnBailout(b, true);
+        assertRecoveredOnBailout(c, true);
+        assertRecoveredOnBailout(d, true);
+        f(a, b, c, d);
+    }
+}
+
+topLevel();