1 files changed, 15 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/asm.js/testRangeAnalysis.js b/js/src/jit-test/tests/asm.js/testRangeAnalysis.js
new file mode 100644
index 0000000000..6418bc1b39
--- /dev/null
+++ b/js/src/jit-test/tests/asm.js/testRangeAnalysis.js
@@ -0,0 +1,15 @@
+// Bug 894781
+function m(stdlib)
+{
+  "use asm";
+  var abs = stdlib.Math.abs;
+  function f(d)
+  {
+    d = +d;
+    return (~~(5.0 - +abs(d)))|0;
+  }
+  return f;
+}
+var f = m(this);
+assertEq(f(0.2), 4);
+assertEq(f(NaN), 0);