contract c { function f() public view { uint extcodehash; extcodehash; assembly { pop(extcodehash(0)) } } } // ==== // EVMVersion: =byzantium // ---- // TypeError 7110: (93-104): The "extcodehash" instruction is only available for Constantinople-compatible VMs (you are currently compiling for "byzantium"). // TypeError 3950: (93-107): Expected expression to evaluate to one value, but got 0 values instead.