On Sun, Apr 26, 2020 at 5:25 PM Dave Love <lovesh...@fedoraproject.org> wrote:
> Kevin Kofler <kevin.kof...@chello.at> writes: > > > Has anyone (upstream or elsewhere) ever looked into doing an SSE2 > version of > > the vector code? It should be faster than scalar (especially considering > > that the "scalar" floating-point code (under the default -mfpmath=sse) > > actually loads everything into SSE2 registers as well, but does not > actually > > make use of the vectorization) and it would match the baseline of many > > distributions and upstreams out there. > > What's preventing vectorization with sse2 (or other architecture' base > SIMD) anyhow, if anything? Use something > like > > gcc -Ofast -fopt-info-vec-missed > I can't comment on the exact command line used, but I did experiment with a recent pull request adding SSE 4.1 Full details here: https://github.com/drowe67/LPCNet/pull/25 Thanks, Richard
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