Add m-esr52 at 52.6.0

1 files changed, 25 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/ion/object-create.js b/js/src/jit-test/tests/ion/object-create.js
new file mode 100644
index 000000000..dca277c3e
--- /dev/null
+++ b/js/src/jit-test/tests/ion/object-create.js
@@ -0,0 +1,25 @@
+// Ensure Ion inlining of Object.create(x) tests the type of x
+// matches the template object.
+
+var P1 = {};
+var P2 = {};
+minorgc();
+
+function f1() {
+    for (var i=0; i<100; i++) {
+	var P = (i & 1) ? P1 : P2;
+	var o = Object.create(P);
+	assertEq(Object.getPrototypeOf(o), P);
+    }
+}
+f1();
+
+function f2() {
+    var arr = [null, Array];
+    for (var i=0; i<99; i++) {
+	var p = arr[(i / 50)|0];
+	var o = Object.create(p);
+	assertEq(Object.getPrototypeOf(o), p);
+    }
+}
+f2();