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Add just-in-time (jit) language option to gcc build (T9679) #98

Open celticmagic opened 10 months ago

celticmagic commented 10 months ago
appmath (#appmath), 2021-04-14 11:43:11 UTC

The currently in development and upcoming Emacs 28 release has merged gccemacs. This feature adds support for compiling Emacs Lisp to native code using libgccjit resulting (hopefully) in greatly improved run-time performance. Adding --enable-languages=jit,(etc) to the gcc build provides libgccjit.so.
celticmagic commented 10 months ago
Beatrice T. Meyers (#DataDrake), 2021-04-22 22:19:54 UTC

At the moment nothing requires this so it doesn't need to happen until emacs is updated to 28.X.
celticmagic commented 10 months ago
nazar (#nazar), 2021-05-19 05:29:18 UTC

>>! In T9679#183794, #DataDrake wrote: > At the moment nothing requires this so it doesn't need to happen until emacs is updated to 28.X. enabling libgccjit would make absolutely easier compiling 28.0 branch for those who use pre-release version of emacs.
celticmagic commented 10 months ago
Joshua Strobl (#JoshStrobl), 2021-05-19 12:13:03 UTC

> branch for those who use pre-release version of emacs. Not sure why we should need to be the ones to put in the work for that then.
ermo commented 2 months ago

This is a pretty nice option to have, particularly given the fact that e.g. emacs is notoriously slow and enabling this option will speed things up a fair bit.