[Bug target/117599] LoongArch support for BitInt

[yangyujie at loongson dot cn via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117599

--- Comment #10 from Yang Yujie <yangyujie at loongson dot cn> ---
Created attachment 62147
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=62147&action=edit
Fix for r16-3056 regression