Change in libosmocore[master]: libomsocoding: NEON viterbi acceleration

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laforge gerrit-no-reply at lists.osmocom.org
Thu Jul 23 12:52:24 UTC 2020


laforge has posted comments on this change. ( https://gerrit.osmocom.org/c/libosmocore/+/19372 )

Change subject: libomsocoding: NEON viterbi acceleration
......................................................................


Patch Set 1:

(1 comment)

https://gerrit.osmocom.org/c/libosmocore/+/19372/1//COMMIT_MSG 
Commit Message:

https://gerrit.osmocom.org/c/libosmocore/+/19372/1//COMMIT_MSG@11 
PS1, Line 11: Although autodetection according to __ARM_NEON would work because this
            : is only defined if the fpu is neon neon-fp16 neon-vfpv3 eon-vfpv4
            : neon-fp-armv8 crypto-neon-fp-armv8 doing that would lead to a unknown
            : performance impact, so it needs to be enabled manually.
> SS(S)E/AVX is a cpu feature set that differs depending on bits provided by the cpu in a reg (and the […]
thanks for explaining the Cortex-A8 situation. It probably deserves to be mentioned here as a concrete example why we don't enable it by default.

After that explanation, I'm happy with your patch (minus the copyright notice).



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Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Change-Id: I58ff2cb4ce3514f43390ff0a2121f81e6a4983b5
Gerrit-Change-Number: 19372
Gerrit-PatchSet: 1
Gerrit-Owner: Hoernchen <ewild at sysmocom.de>
Gerrit-Reviewer: Hoernchen <ewild at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <vyanitskiy at sysmocom.de>
Gerrit-Reviewer: laforge <laforge at osmocom.org>
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