GCC 10.2.1 Released

[Iain Buclaw]

On Monday, 24 August 2020 at 21:40:08 UTC, H. S. Teoh wrote:
> On Mon, Aug 24, 2020 at 09:24:23PM +0000, Iain Buclaw via 
> Digitalmars-d-announce wrote: [...]
>> GCC 10.2 is a bug-fix release from the GCC 10 branch 
>> containing important fixes for regressions and serious bugs 
>> found GCC 10.1.
>
> Thanks for all of your efforts, Iain!!
>
>
> [...]
>> Also fixed is a compile-time performance bug when using 
>> `static foreach'.
> [...]
>> Compilation time has been reduced from around 40 to 0.08 
>> seconds. Memory consumption is also reduced from 3.5GB to 
>> 55MB. (Thanks BorisCarvajal!)
> [...]
>
> Wow. That's a pretty major improvement!  Is this improvement 
> upstreamed?
>

It was backported from this PR 
https://github.com/dlang/dmd/pull/11303 (see PR 11335)

> Just out of curiosity, which language version will the next GCC 
> release have?  Currently, my version of GDC gives __VERSION__ 
> as 2.076, which is pretty old (whereas LDC gives 2.093, 
> basically on par with DMD).  Will the next GDC major release 
> have a significantly-updated language version?
>

Likely the deciding factor will come down to how much free time I 
will get to do so.  There's still a few outstanding issues in 
dmd-master and gcc middle-end that have hampered progress by a 
few weeks.

> (I understand that the original plan was to get a foot in GCC's 
> door first, for bootstrapping reasons, then now that we have 
> GDC in the official GCC distribution, we can bootstrap to a 
> much more up-to-date front-end version.)
>

That is correct, so far I've yanked out the old C++ sources and 
replaced them with D, and the end result is a compiler that links 
and passes 99% of the testsuite.  Though I wonder if it might be 
possible take advantage of GCC's bootstrap process and keep both 
in-tree for the benefit of incomplete ports.