diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug620532.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug620532.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,15 @@
+for (var i = 0; i < 20; i++) {
+    m = Math.min(0xffffffff, 0);
+}
+assertEq(m == 0, true);
+
+var buffer = new ArrayBuffer(4);
+var int32View = new Int32Array(buffer);
+var uint32View = new Uint32Array(buffer);
+int32View[0] = -1;
+var m;
+for (var i = 0; i < 20; i++) {
+    m = Math.min(uint32View[0], 0); // uint32View[0] == 0xffffffff
+}
+assertEq(m == 0, true);
+