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...e IR level, we could have some MISD/SIMD instructions with the whole range and let the codegen define what low-level instructions to use in each case. So, a processor without VFP would unroll the loop, while one with could use the VFP instructions instead of unrolling. Collapsing memset-like loop: multistore i32 %value, [ 400 x i32 ]* %array Collapsing memcpy-like loop: multicopy [ 400 x i32 ]* %orig, [ 400 x i32 ]* %dest Like the MSVC, we could also detect pointer copy loops and revert to a memcpy call. If a loop is called more than a few times, might be better (if space optimisations are not on) t...

On Nov 7, 2009, at 4:15 PM, Renato Golin wrote: > 2009/11/7 Chris Lattner <clattner at apple.com>: >> I enjoyed this presentation: >> http://www.linux-kongress.org/2009/slides/compiler_survey_felix_von_leitner.pdf > > Wow, very comprehensive! > > Is there anyone working on vectorization? This is something that > interests me, I might give it a try, just need