[PATCH 0/12] GCC _BitInt support [PR102989]

[Matthew Malcomson]

On 8/9/23 19:14, Jakub Jelinek via Gcc-patches wrote:

> It is enabled only on targets which have agreed on processor specific
> ABI how to lay those out or pass as function arguments/return values,
> which currently is just x86-64 I believe, would be nice if target maintainers
> helped to get agreement on psABI changes and GCC 14 could enable it on far
> more architectures than just one.
>
Hello,

Do you know of any other architectures in the process of defining a 
psABI for _BitInt (or for that matter having defined an ABI between then 
and now)?

We're currently working on completing the ABI for AArch64 and AArch32 
hoping that it could unblock the enablement for those arches.
We'd like to know about the potential clashes with other ABI's w.r.t. 
user-visible behaviour as part of the decision making.

I'd not found any other defined ABI's online, but thought it worth 
asking in case I just missed it.

Thanks,

Matthew