On Thu, 29 May 2025, Martin Uecker wrote:

> 
> This is a fun one. 
> 
> Bootstrapped and regression tested for x86_64.
> 
> Martin
> 
> 
>     c: fix ICE for mutually recursive structures [PR120381]
>     
>     For invalid nesting of a structure definition in a definition
>     of itself or when using a rather obscure construction using statement
>     expressions, we can create mutually recursive pairs of non-identical
>     but compatible structure types.  This can lead to invalid composite
>     types and an ICE.  If we detect recursion even for swapped pairs
>     when forming composite types, this is avoided.

OK.

-- 
Joseph S. Myers
josmy...@redhat.com

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