solidity/test/libsolidity/syntaxTests/controlFlow/unreachableCode/while_break.sol

contract C {
    function f() public pure {
        uint a = 0;
        while (a < 100) {
            a++;
            break;
            a--;
        }
    }
}
// ----
// Warning 5740: (138-141='a--'): Unreachable code.