JIT: Difference between revisions

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This page should help interested persons which want to start hacking on the current JIT implementation in octave. It's '''NOT''' intended for octave users.
This page should help interested persons who want to start hacking on the JIT implementation in octave. It's '''NOT''' intended for octave users.


Last year, thanks to Max Brister's work, an initial implement of a just-in-time compiler (JITC) in LLVM for GSoC 2012. [http://planet.octave.org/octconf2012/jit.pdf Here] is Max's [[OctConf 2012]] presentation about his current implementation.
Thanks to Max Brister's work for GSoC 2012, an initial implement of a just-in-time compiler (JITC) was coded in LLVM. [https://web.archive.org/web/20220124015319/http://planet.octave.org/octconf2012/jit.pdf Here] is Max's [[OctConf 2012]] presentation about his implementation.
 
The JIT was removed from Octave sources in 2021, see [http://hg.savannah.gnu.org/hgweb/octave/rev/f254c302bb9c here] for the details and justification. It can still be accessed by looking at an older revision of the Octave repository.


=== Recommended reading ===
=== Recommended reading ===
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*jit-util.cc (& jit-util.h)
*jit-util.cc (& jit-util.h)


I haven't gone through all parts of the code yet and dont understand a lot of it, but my first impression is that it feels like more of a text dump. The various parts need to be seperated into different files based on functionality. The current files are a tad too big IMHO. Right now all of the jit parts are in 4 files(+4 header files) which are quite large and a lot of it has no documentaion to explain how the different parts come togeather.  
I haven't gone through all parts of the code yet and don't understand a lot of it, but my first impression is that it feels like more of a text dump. The various parts need to be separated into different files based on functionality. The current files are a tad too big IMHO. Right now all of the jit parts are in 4 files(+4 header files) which are quite large and a lot of it has no documentation to explain how the different parts come together.  


To be fair my impressions/opinions are that of a beginner level user and you are welcome to have a look and post your own comments.
To be fair my impressions/opinions are that of a beginner level user and you are welcome to have a look and post your own comments.
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