GCC is getting parallelization and so should DMD
Per Nordlöw
per.nordlow at gmail.com
Fri Aug 21 13:16:45 UTC 2020
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
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