1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/test586387.js b/js/src/jit-test/tests/basic/test586387.js
new file mode 100644
index 0000000000..5ddc2d7266
--- /dev/null
+++ b/js/src/jit-test/tests/basic/test586387.js
@@ -0,0 +1,14 @@
+function testFloatArray() {
+  var v = new Float32Array(32);
+
+  for (var i = 0; i < v.length; ++i)
+    v[i] = i;
+
+  var t = 0;
+  for (var i = 0; i < v.length; ++i)
+    t += v[i];
+
+  return t;
+}
+
+assertEq(testFloatArray(), 496);