On Fri, 10 Jan 2025 at 14:32, Tamar Christina <tamar.christ...@arm.com> wrote:
>
> Hi All,
>
> This is a backport version of the same patch as
> https://gcc.gnu.org/pipermail/gcc-patches/2024-December/671618.html
>
> for the release branches.  I'd like to backport this to GCC 14,13 and 12 where
> the first regression showed up.  I am however aware that GCC 12 is going to
> get it's last release soon and as such a backport to 12 may not be desirable
> for a non correctness fix.
>
> If that is the case I would be happy with just 13 and 14.
>
> I've benchmarked the patch on the branches and see the regressions go away to
> what they were in GCC 11.
>
> Bootstrapped Regtested on aarch64-none-linux-gnu and no issues.
>
> Ok for GCC-14 and GCC-13?

Yes for both.

I'm tempted to say it's OK for 12 as well. Maybe leave it a few weeks
in case we get reports of negative consequences for the 13 and 14
backport?

>
> Thanks,
> Tamar
>
> libstdc++-v3/ChangeLog:
>
>         * include/bits/hashtable.h (find): Add inline keyword.
>
> ---
> diff --git a/libstdc++-v3/include/bits/hashtable.h 
> b/libstdc++-v3/include/bits/hashtable.h
> index 
> 834288c747c28e8625d9d8db387e6abe719b6c87..f5f421d2fd3218d827d673cf7dd1ec9cd9495982
>  100644
> --- a/libstdc++-v3/include/bits/hashtable.h
> +++ b/libstdc++-v3/include/bits/hashtable.h
> @@ -1723,7 +1723,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
>            typename _ExtractKey, typename _Equal,
>            typename _Hash, typename _RangeHash, typename _Unused,
>            typename _RehashPolicy, typename _Traits>
> -    auto
> +    auto inline
>      _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal,
>                _Hash, _RangeHash, _Unused, _RehashPolicy, _Traits>::
>      find(const key_type& __k)
> @@ -1746,7 +1746,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
>            typename _ExtractKey, typename _Equal,
>            typename _Hash, typename _RangeHash, typename _Unused,
>            typename _RehashPolicy, typename _Traits>
> -    auto
> +    auto inline
>      _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal,
>                _Hash, _RangeHash, _Unused, _RehashPolicy, _Traits>::
>      find(const key_type& __k) const
>
>
>
>
> --

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