1fn myFn(_: usize) void {
 2    return;
 3}
 4pub export fn entry() void {
 5    @call(.always_tail, myFn, .{0});
 6}
 7
 8// error
 9// backend=llvm
10//
11// :5:5: error: unable to perform tail call: type of function being called 'fn (usize) void' does not match type of calling function 'fn () callconv(.c) void'