1 files changed, 46 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/warp/typedarray-element-exists.js b/js/src/jit-test/tests/warp/typedarray-element-exists.js
new file mode 100644
index 0000000000..623ad672cb
--- /dev/null
+++ b/js/src/jit-test/tests/warp/typedarray-element-exists.js
@@ -0,0 +1,46 @@
+function inBounds() {
+  var ta = new Int32Array(10);
+
+  for (var i = 0; i < 100; ++i) {
+    var index = i & 7;
+    assertEq(index in ta, true);
+  }
+}
+inBounds();
+
+function outOfBounds() {
+  var ta = new Int32Array(10);
+
+  for (var i = 0; i < 100; ++i) {
+    var index = 10 + (i & 7);
+    assertEq(index in ta, false);
+
+    var largeIndex = 2147483647 - (i & 1);
+    assertEq(largeIndex in ta, false);
+  }
+}
+outOfBounds();
+
+function negativeIndex() {
+  var ta = new Int32Array(10);
+
+  for (var i = 0; i < 100; ++i) {
+    var index = -(1 + (i & 7));
+    assertEq(index in ta, false);
+
+    var largeIndex = -2147483647 - (i & 1);
+    assertEq(largeIndex in ta, false);
+  }
+}
+negativeIndex();
+
+function emptyArray() {
+  var ta = new Int32Array(0);
+
+  for (var i = 0; i < 100; ++i) {
+    var index = i & 7;
+    assertEq(index in ta, false);
+    assertEq(-index in ta, false);
+  }
+}
+emptyArray();