Arithmetic operation overflowed in rustc_trans::trans::cabi_x86_64

[apasel422]

I'm getting an "arithmetic operation overflowed" ICE in librustc_trans/trans/cabi_x86_64.rs on line 454 when building stage1 libstd on 64-bit Ubuntu. Likely related to #27017.

[alexcrichton]

cc @luqmana

[apasel422]

Note that this occurred with --enable-debug --enable-debug-assertions. More reason to fix #27010.

[apasel422]

From what I can tell, this is choking on the getnameinfo function, which takes 7 "integer" arguments:

extern "system" {
     fn getnameinfo(sa: *const libc::sockaddr, salen: socklen_t,
                    host: *mut c_char, hostlen: libc::size_t,
                    serv: *mut c_char, servlen: libc::size_t,
                    flags: c_int) -> c_int;
}

[luqmana]

Yup, I know what the issue is. I'll get a fix up as soon as I get home.