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

[Joseph Myers <joseph@codesourcery.com>]

On Mon, 18 Sep 2023, Matthew Malcomson via Gcc-patches wrote:

> 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)?

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102989#c13 has links to all 
the issues I filed requesting that ABIs be defined for _BitInt.

At some point all GCC architecture maintainers should probably be asked to 
try to agree _BitInt ABIs with any psABI maintainers that may exist, or, 
failing a maintained psABI, with any other implementations for the 
architecture, or, failing other maintained implementations that support 
_BitInt or might do so in future, to write down a definition of the ABI 
being used by GCC for _BitInt on that architecture along with enabling the 
support in GCC.

-- 
Joseph S. Myers
joseph@codesourcery.com