deprectate vec_sse.h

[jg1uaa]

vec_avx.h already has SSE(4.1) support, so no longer to use vec_sse.h.

[drowe67]

Thanks @jg1uaa.

@tmiw - is this OK with you? Not sure how to test it myself on my machine.

[tmiw]

Thanks @jg1uaa.

@tmiw - is this OK with you? Not sure how to test it myself on my machine.

I can't test right now but in theory you should be able to build with cmake -DAVX=0 -DAVX2=0 to force SSE.

[tmiw]

That said, based on the code it doesn't look like it'll hurt anything as we've been mandating AVX for 2020 modes anyway.

[drowe67]

Thanks for the latest commit @jg1uaa. @tmiw - feel free to merge if/when you feel the PR is OK (no rush).

[tmiw]

OK, currently testing. So far, it looks like the proposed command does work to force SSE:

Mooneer6MBP2461:build mooneer$ cmake -DAVX=0 -DAVX2=0 ..
-- The C compiler identification is AppleClang 14.0.3.14030022
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- LPCNet version: 0.5
-- freedv-gui current git hash: 97a0df1
-- Host system arch is: x86_64
-- Looking for available CPU optimizations on an OSX system...
-- sse processor flags found or enabled.
-- Compilation date = XX20230831XX
-- Configuring done (14.0s)
-- Generating done (0.4s)
-- Build files have been written to: /Users/mooneer/devel/LPCNet/build
Mooneer6MBP2461:build mooneer$

Currently building codec2 based on this PR and will report back when ctests are done.

[tmiw]

100% tests passed, 0 tests failed out of 138. If curious, here are some timings from my system (2019 MBP) when forcing LPCNet to use SSE:

        Start  36: test_OFDM_modem_2020_ldpc
 36/138 Test  #36: test_OFDM_modem_2020_ldpc ......................   Passed    0.23 sec

        Start  43: test_OFDM_modem_2020B_AWGN
 43/138 Test  #43: test_OFDM_modem_2020B_AWGN .....................   Passed    0.08 sec

        Start  76: test_freedv_api_2020_to_ofdm_demod
 76/138 Test  #76: test_freedv_api_2020_to_ofdm_demod .............   Passed    0.09 sec
        Start  77: test_freedv_api_2020_from_ofdm_mod
 77/138 Test  #77: test_freedv_api_2020_from_ofdm_mod .............   Passed    0.06 sec
        Start  78: test_freedv_api_2020_awgn
 78/138 Test  #78: test_freedv_api_2020_awgn ......................   Passed    0.53 sec
        Start  79: test_freedv_api_2020B_mpp
 79/138 Test  #79: test_freedv_api_2020B_mpp ......................   Passed    2.86 sec

        Start  98: test_freedv_reliable_text_ideal_2020
 98/138 Test  #98: test_freedv_reliable_text_ideal_2020 ...........   Passed   22.61 sec
        Start  99: test_freedv_reliable_text_awgn_2020
 99/138 Test  #99: test_freedv_reliable_text_awgn_2020 ............   Passed   23.28 sec
        Start 100: test_freedv_reliable_text_fade_2020
100/138 Test #100: test_freedv_reliable_text_fade_2020 ............   Passed   24.76 sec

Anyway, merging now. Thanks @jg1uaa for the contribution!