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-rw-r--r--js/src/jit-test/tests/ion/object-create.js25
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();