michael@0: function test(m) {
michael@0:   do {
michael@0:     if (m = arr[0]) break;
michael@0:     m = 0;
michael@0:   }
michael@0:   while (0);
michael@0:   arr[1] = m;
michael@0: }
michael@0: 
michael@0: arr = new Float64Array(2);
michael@0: 
michael@0: // run function a lot to trigger methodjit compile
michael@0: for(var i=0; i<200; i++)
michael@0:   test(0);
michael@0: 
michael@0: // should return 0, not NaN
michael@0: assertEq(arr[1], 0)