diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/parallel/Array-mapPar-fn-args.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/parallel/Array-mapPar-fn-args.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,19 @@
+function testMap() {
+  // Test map elemental fun args
+  var p = [1,2,3,4];
+  var m = p.mapPar(function(e) {
+    assertEq(e >= 1 && e <= 4, true);
+  });
+  var m = p.mapPar(function(e,i) {
+    assertEq(e >= 1 && e <= 4, true);
+    assertEq(i >= 0 && i < 4, true);
+  });
+  var m = p.mapPar(function(e,i,c) {
+    assertEq(e >= 1 && e <= 4, true);
+    assertEq(i >= 0 && i < 4, true);
+    assertEq(c, p);
+  });
+}
+
+if (getBuildConfiguration().parallelJS)
+  testMap();