michael@0: function testUndemotableBinaryOp() {
michael@0:     var out = [];
michael@0:     for (let j = 0; j < 5; ++j) { out.push(6 - ((void 0) ^ 0x80000005)); }
michael@0:     return out.join(",");
michael@0: }
michael@0: assertEq(testUndemotableBinaryOp(), "2147483649,2147483649,2147483649,2147483649,2147483649");