It's time we start thinking about preparing for parallelization in DMD now that GCC is getting it [1]. Andrei mentioned this in an interview as early 2014 [2].

A good start is to start moving the `__gshared` declarations into aggregates that are explicitly instantiated in mars.d and then passed as context references into functions constructors. That will be a lot of manual work. However this process can be directed by D's purity checks by adding `pure:` at module top-levels. I've already started experimenting with this at [3]

I reckon the greatest obstacle is to sync these changes with all the C/C++ mappings in dmd.

[1] https://www.phoronix.com/scan.php?page=news_item&px=GCC-fparallel-jobs-Patches
[2] https://www.youtube.com/watch?v=KuabN0z4hxg
[3] https://github.com/dlang/dmd/compare/master...nordlow:pureify

On Friday, 21 August 2020 at 13:16:45 UTC, Per Nordlöw wrote:
> It's time we start thinking about preparing for parallelization in DMD now that GCC is getting it [1]. Andrei mentioned this in an interview as early 2014 [2].
>
> A good start is to start moving the `__gshared` declarations into aggregates that are explicitly instantiated in mars.d and then passed as context references into functions constructors. That will be a lot of manual work. However this process can be directed by D's purity checks by adding `pure:` at module top-levels. I've already started experimenting with this at [3]
>
> I reckon the greatest obstacle is to sync these changes with all the C/C++ mappings in dmd.
>

If the patches go in, gdc will get this feature for free. :-)

On Monday, 31 August 2020 at 14:55:04 UTC, Iain Buclaw wrote:
> If the patches go in, gdc will get this feature for free. :-)

Nice.