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14 Commits

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>
 2016-01-15 16:46:13 -05:00
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
a478e99a60 avutil/x86: reenable ff_update_lls_avx() 
The bug has been fixed in c8b920a9b7 by Loren Merritt

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-02 12:02:08 +02:00
Michael Niedermayer
d1fa671895 Merge commit 'c8b920a9b7fa534a6141695ace4e8c2dfcd56cee' 
* commit 'c8b920a9b7fa534a6141695ace4e8c2dfcd56cee':
  lls/x86: use 3-operator vaddpd in ADDPD_MEM

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-02 11:40:44 +02:00
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>
 2013-07-02 10:15:09 +02:00
Michael Niedermayer
4e488ac5f5 Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  x86: lpc: fix a segfault in av_evaluate_lls_sse2()

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-01 02:26:22 +02:00
Loren Merritt
1221bb6239 x86: lpc: fix a segfault in av_evaluate_lls_sse2() 2013-06-30 23:11:19 +00:00
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
0b40c50508 lls.asm: put avx code under if HAVE_AVX_EXTERNAL 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-06-30 12:12:01 +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