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15 Commits

Author SHA1 Message Date
James Almer
70d685a77f x86: use the new helper macros where useful 
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
 2016-02-14 20:00:21 -03:00
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>
 2016-01-15 16:46:13 -05:00
James Almer
c16e99e3b3 x86: check for AV_CPU_FLAG_AVXSLOW where useful 
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-06-01 00:15:35 +02:00
Michael Niedermayer
579a0fdc21 avutil/lls: Make unchanged function arguments const 
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-09-28 19:32:07 +02:00
Michael Niedermayer
70b8668fb5 drop LLS1, rename LLS2 to LLS 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-08-09 23:20:31 +02:00
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>
 2013-11-17 16:41:08 +01:00
Michael Niedermayer
bbe66ef912 avutil: rename lls to lls2 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-11-17 16:30:23 +01:00
Michael Niedermayer
a478e99a60 avutil/x86: reenable ff_update_lls_avx() 
The bug has been fixed in c8b920a9b7fa534a6141695ace4e8c2dfcd56cee by Loren Merritt

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-02 12:02:08 +02:00
Michael Niedermayer
a6e46ed51a Revert "avutil/x86: disable ff_evaluate_lls_sse2() for 32bit" 
This reverts commit 247425241cb3b2b76df1c2aced5ce0d56126b82d.
 2013-07-01 02:27:47 +02:00
Michael Niedermayer
247425241c avutil/x86: disable ff_evaluate_lls_sse2() for 32bit 
It just segfaults on 32bit, thus its disabled until someone fixes it.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-06-30 19:03:57 +02:00
Michael Niedermayer
6e76e6a05a Merge commit 'b545179fdff1ccfbbb9d422e4e9720cb6c6d9191' 
* commit 'b545179fdff1ccfbbb9d422e4e9720cb6c6d9191':
  x86: lpc: simd av_evaluate_lls

Conflicts:
	libavutil/x86/lls.asm

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-06-30 12:15:12 +02:00
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>
 2013-06-30 12:12:11 +02:00
Michael Niedermayer
78b5479633 Merge commit '502ab21af0ca68f76d6112722c46d2f35c004053' 
* commit '502ab21af0ca68f76d6112722c46d2f35c004053':
  x86: lpc: simd av_update_lls

The versions are bumped due to changes in lls.h which is used across
libraries affecting intra library ABI
(This version bump also covers changes to lls.h in the immedeatly previous
 commits)

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-06-30 11:35:52 +02:00
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>
 2013-06-29 13:23:57 +02:00
Loren Merritt
502ab21af0 x86: lpc: simd av_update_lls 
4x-6x faster on sandybridge

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-06-29 13:23:57 +02:00