diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug809472.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug809472.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,19 @@
+function test1(x) {
+  return (x*((2<<23)-1))|0
+}
+function test2(x) {
+  return (x*((2<<22)-1))|0
+}
+function test3(x) {
+  return (x*((2<<21)-1))|0
+}
+function test4(x) {
+  var b = x + x + 3
+  return (b*b) | 0
+}
+//MAX_INT
+var x = 0x7ffffffe;
+assertEq(test1(x), 2113929216);
+assertEq(test2(x), 2130706434);
+assertEq(test3(x), 2139095042);
+assertEq(test4(x), 0);