[flac-dev] Autocorrelation precision insufficient

Martijn van Beurden mvanb1 at gmail.com
Fri Jun 25 07:48:10 UTC 2021

Op do 24 jun. 2021 om 09:17 schreef Martijn van Beurden <mvanb1 at gmail.com>:
> - Switch to autoc[] as doubles, but remove current SSE and disable VSX
> intrinsics for someone to update them later (I don't have any POWER8
> or POWER9 hardware to test). This means all platforms will get the
> same compression, but some (with only SSE but not SSE2 or with VSX)
> will see a large slowdown.

I see now that besides routines with SSE intrinsics (which I rewrote
into SSE2) and with VSX intrinsics (which I don't have hardware for)
there is also a open pull request for routines with ARM intrinsics. I
am willing and able to rewrite those if this change is accepted and
merged. I have access to ARMv8 with 32-bit OS, ARMv8 with 64-bit OS,
ARMv6 and I might be able to get hold of ARMv7 hardware.

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