diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug924538.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug924538.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,9 @@
+// Don't die a float32-related death.
+function testFloat32SetElemIC(a) {
+  for (var i = 0; i < a.length; i++) {
+    var r = Math.fround(Math.random());
+    a[i] = r;
+  }
+}
+testFloat32SetElemIC(new Array(2048));
+testFloat32SetElemIC(new Uint8ClampedArray(2048));