1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug1279898.js b/js/src/jit-test/tests/ion/bug1279898.js
new file mode 100644
index 0000000000..756120a6d9
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug1279898.js
@@ -0,0 +1,19 @@
+
+function f() {
+    var i32 = new Int32Array(1);
+    var f32 = new Float32Array(i32.buffer);
+    for (var i = 0; i < 3; i++) {
+        var a0 = +1;
+        var a3 = +4;
+
+        i32[0] = a0;
+        var b0 = f32[0];
+
+        i32[0] = a3;
+        var b3 = f32[0];
+
+        assertEq(b0 != b3, true);
+    }
+}
+
+f();