diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/SIMD/ToSource.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/SIMD/ToSource.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,10 @@
+if (typeof SIMD === "undefined")
+    quit();
+
+var float32x4 = SIMD.float32x4;
+var f = float32x4(11, 22, 33, 44);
+assertEq(f.toSource(), "float32x4(11, 22, 33, 44)");
+
+var int32x4 = SIMD.int32x4;
+var f = int32x4(11, 22, 33, 44);
+assertEq(f.toSource(), "int32x4(11, 22, 33, 44)");