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Commit Graph

14 Commits (2c734a84964c6f6896194b0a3175124897468eac)

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>	10 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 c8b920a9b7 by Loren Merritt Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	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