search for: looptransforms

Hi, As I now have a working LLVM installation I would like to start experimenting with loop transformations. Special loop unrollings, mergers etc. I just wanted to check if there are any special things that one should take into account ? I just figured I'd ask on the list before I start digging since there might be some tips out there. Anyway, back to the code. Thanks. /Fred

Hi llvm-dev, I recently posted an RFC about extending #pragma clang loop to the cfe-dev mailing list [1]. It proposes adding more loop transformations to Clang, defines an execution order if multiple transformations are specified and allow programmers to assign names to loops. This email is about the LLVM part of the proposal. I am happy for any feedback, especially about whether the community

On 2/5/20 6:13 PM, Chris Lattner via llvm-dev wrote: > > >> On Feb 2, 2020, at 10:35 PM, Michael Kruse via llvm-dev >> <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote: >> >>> >>> That's actually not how I read it. Red/green trees was *one* of the >>> nine items you mentioned in your list and this didn't

...s not mean we cannot learn from each other's experience. 3) On the technical point design of red/green trees, my personal opinion is > that this isn’t solving the important part of the problem. Red/green trees > (as far as I’m aware > <https://llvm.org/devmtg/2018-10/slides/Kruse-LoopTransforms.pdf>) are a > memory saving optimization. > Not entirely, there would also be a run-time cost if we had to copy the complete IR before for creating a new "red" representation. If this was necessary, I think it would be a barrier to speculatively apply transformations. > H...