Adding to discussion, initiated by me long time ago, about using -O3 in
yoshimi, then audio software at all - someone notes, someone noted that
-O3 is where vectorization is enabled (they compare vectorization ops
with scalar SSE ops, that are not vectorized).
https://stackoverflow.com/a/8080094
I'm currently working at first audio app (spectroscope, which will
later evolve into spectral editing helpers), and decided to try
overlook, how good code is simd-ed. While searching (without success)
about why integers ops are not simd-ed, despite SIMD has instructions
for both FP and int operations, i casually discovered this post.
More exactly, it happened while experimenting with graphical
post-processing for instant spectrum view. Since app is gtk3 based and
spectrum is created by cairo (probably not best approach), due to cairo
color formats (best avilable are argb32, rgb24 and rgb30), there are
close to not FP ops in my post-proc code.
Yoshimi source code is available from either:
https://sourceforge.net/projects/yoshimi
Or: https://github.com/Yoshimi/yoshimi
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