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${ noResults }
14 Commits (23da5caf094a7c20dd3cd59ebd2ddd8b0f5950fc)
| Author | SHA1 | Message | Date |
|---|---|---|---|
Ganesh Ajjanagadde
|
5989add4ab |
lavu/x86/lls: add fma3 optimizations for update_lls
This improves accuracy (very slightly) and speed for processors having fma3. Sample benchmark (fate flac-16-lpc-cholesky, Haswell): old: 5993610 decicycles in ff_lpc_calc_coefs, 64 runs, 0 skips 5951528 decicycles in ff_lpc_calc_coefs, 128 runs, 0 skips new: 5252410 decicycles in ff_lpc_calc_coefs, 64 runs, 0 skips 5232869 decicycles in ff_lpc_calc_coefs, 128 runs, 0 skips Tested with FATE and --disable-fma3, also examined contents of lavu/lls-test. Reviewed-by: James Almer <jamrial@gmail.com> Reviewed-by: Henrik Gramner <henrik@gramner.com> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com> |
9 years ago |
Michael Niedermayer
|
70b8668fb5 |
drop LLS1, rename LLS2 to LLS
Signed-off-by: Michael Niedermayer <michaelni@gmx.at> |
11 years ago |
|
Michael Niedermayer
|
c3814ab654 |
rename new lls code to lls2 to avoid conflict with the old which has a different ABI
also remove failed attempt at a compatibility layer, the code simply cannot work Signed-off-by: Michael Niedermayer <michaelni@gmx.at> |
11 years ago |
|
Michael Niedermayer
|
a478e99a60 |
avutil/x86: reenable ff_update_lls_avx()
The bug has been fixed in
|
12 years ago |
Loren Merritt
|
c8b920a9b7 |
lls/x86: use 3-operator vaddpd in ADDPD_MEM
Fixes build with yasm-1.1 Signed-off-by: Anton Khirnov <anton@khirnov.net> |
12 years ago |
|
Loren Merritt
|
1221bb6239 |
x86: lpc: fix a segfault in av_evaluate_lls_sse2()
|
12 years ago |
|
Michael Niedermayer
|
a285079bc7 |
lls.asm: disable ff_update_lls_avx
The code doesnt build with yasm from ubuntu 12.04 Signed-off-by: Michael Niedermayer <michaelni@gmx.at> |
12 years ago |
|
Michael Niedermayer
|
0b40c50508 |
lls.asm: put avx code under if HAVE_AVX_EXTERNAL
Signed-off-by: Michael Niedermayer <michaelni@gmx.at> |
12 years ago |
Loren Merritt
|
b545179fdf |
x86: lpc: simd av_evaluate_lls
1.5x-1.8x faster on sandybridge Signed-off-by: Luca Barbato <lu_zero@gentoo.org> |
12 years ago |
|
Loren Merritt
|
502ab21af0 |
x86: lpc: simd av_update_lls
4x-6x faster on sandybridge Signed-off-by: Luca Barbato <lu_zero@gentoo.org> |
12 years ago |