1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug1007213.js b/js/src/jit-test/tests/ion/bug1007213.js
new file mode 100644
index 000000000..6366e1e3f
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug1007213.js
@@ -0,0 +1,21 @@
+
+function getval(o) {
+    return obj.val
+}
+function f(x, o) {
+    var lhs = -(~x >>> 0)
+    var rhs = getval(o)
+    return (lhs - rhs >> 0)
+}
+function getObj(v) {
+    return {
+        val: v
+    }
+}
+
+var obj = getObj(1)
+assertEq(f(0, obj), 0)
+assertEq(f(0, obj), 0)
+obj = getObj('can has bug?')
+obj = getObj(.5)
+assertEq(f(0, obj), 1)