1 files changed, 25 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/TypedObject/jit-write-u16-into-u16-array.js b/js/src/jit-test/tests/TypedObject/jit-write-u16-into-u16-array.js
new file mode 100644
index 000000000..6c0fe0d78
--- /dev/null
+++ b/js/src/jit-test/tests/TypedObject/jit-write-u16-into-u16-array.js
@@ -0,0 +1,25 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+if (!this.hasOwnProperty("TypedObject"))
+  quit();
+
+setJitCompilerOption("ion.warmup.trigger", 30);
+
+var Vec3u16Type = TypedObject.uint16.array(3);
+
+function foo_u16() {
+  for (var i = 0; i < 5000; i += 10) {
+    var vec = new Vec3u16Type();
+    // making index non-trivially dependent on |i| to foil compiler optimization
+    vec[(i)     % 3] = i;
+    vec[(i + 1) % 3] = i+1;
+    vec[(i + 2) % 3] = i+2;
+    var sum = vec[0] + vec[1] + vec[2];
+    assertEq(sum, 3*i + 3);
+  }
+}
+
+foo_u16();