1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/cacheir/has.js b/js/src/jit-test/tests/cacheir/has.js
new file mode 100644
index 0000000000..86fcd990c9
--- /dev/null
+++ b/js/src/jit-test/tests/cacheir/has.js
@@ -0,0 +1,49 @@
+var max = 40;
+setJitCompilerOption("ion.warmup.trigger", max - 10);
+
+function simple() {
+    var array = [{a: 1}, {b: 1, a: 1}, {c: 1, a: 1}];
+    for (var i = 0; i < array.length; i++) {
+        var x = array[i];
+        assertEq("a" in x, true);
+        assertEq("d" in x, false);
+    }
+}
+
+function megamorphic() {
+    var array = [{a: 1}, {b: 1, a: 1}, {c: 1, a: 1},
+                 {a: 1, b: 1}, {c: 1, e: 1, a: 1},
+                 {__proto__:{e: 1, f: 1, a: 1, g: 1}},
+                 {__proto__:{e: 1, f: 1, a: 1, g: 1, h: 1}}];
+    for (var i = 0; i < array.length; i++) {
+        var x = array[i];
+        assertEq("a" in x, true);
+        assertEq("d" in x, false);
+    }
+}
+
+function proto() {
+    var base = {a: 1};
+    var array = [{__proto__: base},
+                 {__proto__: base, b: 1, a: 1},
+                 {__proto__: base, c: 1, a: 1}];
+    for (var j = 0; j < 2; j++) {
+        for (var i = 0; i < array.length; i++) {
+            var x = array[i];
+            assertEq("a" in x, true);
+            assertEq("d" in x, (j > 0));
+        }
+        base.d = 1; // Define property on prototype
+    }
+}
+
+function test() {
+    for (var i = 0; i < max; i++) {
+        simple();
+        megamorphic();
+        proto();
+    }
+}
+
+test();
+test();