search for: d87299

On Wed, 30 Sep 2020 at 16:48, Andrew Litteken <andrew.litteken at gmail.com> wrote: > > Hi Yvan, > > Glad to hear you’re interested! I’m not sure which ordering you’re looking at the patches, but a cost model was not added to the outliner until D87299. So, if that hasn’t been added I would expect some pretty big code increases since it just outlines whatever similarity it finds first otherwise. > > The cost model has also been slightly reworked since the initial results to be more general, and try to use target hooks, but not all of the ta...

Hi Andrew, Thanks for this great work and presentation, I've also a huge interest in code size reduction. I already looked at the first IR Outliner proposal, and I really like your more general approach. I wanted to look at the impact on ARM targets, and managed to apply your patchset up to D87311 (the remaining ones which are related to call instructions and GEP need to be reworked to be

Indeed, an awesome project and an excellent report! Code size doesn't really get much attention, so the level of detail and the strong roadmap is refreshing. Hopefully, the project will provide execution times along with code-size > reductions. > I doubt it. Outlining will (almost?) always make for slower code due to a lot more calls being made. But that's ok for embedded targets,