SKIP FAILED


var private var_1 u32 ;

fn main_1
var_1 = 0u ;
loop
var_1 = 1u ;
var_1 = 2u ;
if true
var_1 = 3u ;
if false
else
continue ;


var_1 = 4u ;

continuing
var_1 = 5u ;


var_1 = 6u ;
return ;


stage fragment
fn main
main_1 ;


error loop does not exit
