search for: porpodas

...language: what we've learned, Sanjoy Das - Azul Systems, Philip Reames - Azul Systems LLVM back end for HHVM/PHP, Brett Simmers - Facebook, Inc., Maksim Panchenko - Facebook, Inc Session #9: October 30 2:00-3:30: Salon I & II Throttling Automatic Vectorization: When Less Is More, Vasileios Porpodas - University of Cambridge LoopVersioning LICM, Ashutosh Nema - AMD Session #10: October 30 4:30-6:00 Salon III & IV Compiling large, real-world codebases with clang on Windows, Hans Wennborg - Google Inc., Nico Weber - Google Inc. Advances in Loop Analysis Frameworks and Optimizations, Adam N...

...subsumes PSLP or whether there are areas where PSLP still works (or worked) better, given the (brief) comparison in the paper (from which it seems like it addresses the problem possibly in a more general manner): "The widely used bottom-up SLP algorithm has been improved in several ways. Porpodas et al. [32] propose PSLP, a technique that pads the scalar code with redundant instructions, to convert non-isomorphic instruction sequences into isomorphic ones, thus extending the applicability of SLP. Just like VW-SLP-S, PSLP can vectorize code when some of the lanes differ, but it is most...

Hey, I noticed this talk from the EuroLLVM 2015 (https://llvm.org/devmtg/2015-04/slides/pslp_slides_EUROLLVM2015.pdf) on the PSLP vectorization algorithm (CGO 2015 paper: http://vporpo.me/papers/pslp_cgo2015.pdf). Is anyone working on implementing it? If so, are there Phab reviews I can subscribe to? Best, Matt

...function vectorization and loop vectorization with function calls", Xinmin Tian, [cfe-dev] March 2, 2016 (http://lists.llvm.org/pipermail/cfe-dev/2016-March/047732.html. See also https://reviews.llvm.org/D22792). [3] "Throttling Automatic Vectorization: When Less is More", Vasileios Porpodas and Tim Jones, PACT 2015 and LLVM Developers' Meeting 2015. [4] "Intel OpenCL SDK Vectorizer", Nadav Rotem, LLVM Developers' Meeting 2011. [5] "Automatic SIMD Vectorization of SSA-based Control Flow Graphs", Ralf Karrenberg, Springer 2015. See also "Improving Perf...