1 files changed, 35 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 0000000000..2aee977ce2
--- /dev/null
+++ b/js/src/jit-test/tests/ion/recover-empty-new-object.js
@@ -0,0 +1,35 @@
+// |jit-test| --no-ion
+// Warp lacks Scalar Replacement support (bug 1650233). Re-evaluate after that
+// bug has been fixed.
+
+// 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);
+
+// Prevent the GC from cancelling Ion compilations, when we expect them to succeed
+gczeal(0);
+
+// 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();