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     27 
     28 // Test constant folding of smi operations that overflow a 32-bit int
     29 // See http://code.google.com/p/v8/issues/detail?id=580
     30 
     31 function num_ops() {
     32   var x;
     33   var tmp = 0;
     34   x = (tmp = 1578221999, tmp)+(tmp = 572285336, tmp);
     35   assertEquals(2150507335, x, "++");
     36   x = 1578221999 + 572285336;
     37   assertEquals(2150507335, x);
     38 
     39   x = (tmp = -1500000000, tmp)+(tmp = -2000000000, tmp);
     40   assertEquals(-3500000000, x, "+-");
     41   x = -1500000000 + -2000000000;
     42   assertEquals(-3500000000, x);
     43 
     44   x = (tmp = 1578221999, tmp)-(tmp = -572285336, tmp);
     45   assertEquals(2150507335, x, "--");
     46   x = 1578221999 - -572285336;
     47   assertEquals(2150507335, x);
     48 
     49   x = (tmp = -1500000000, tmp)-(tmp = 2000000000, tmp);
     50   assertEquals(-3500000000, x, "-+");
     51   x = -1500000000 - 2000000000;
     52   assertEquals(-3500000000, x);
     53 }
     54 
     55 num_ops();
     56