7 commits

Author	SHA1	Message	Date
Lynne	bbe95f7353	x86: replace explicit REP_RETs with RETs ... From x86inc: > On AMD cpus <=K10, an ordinary ret is slow if it immediately follows either > a branch or a branch target. So switch to a 2-byte form of ret in that case. > We can automatically detect "follows a branch", but not a branch target. > (SSSE3 is a sufficient condition to know that your cpu doesn't have this problem.) x86inc can automatically determine whether to use REP_RET rather than REP in most of these cases, so impact is minimal. Additionally, a few REP_RETs were used unnecessary, despite the return being nowhere near a branch. The only CPUs affected were AMD K10s, made between 2007 and 2011, 16 years ago and 12 years ago, respectively. In the future, everyone involved with x86inc should consider dropping REP_RETs altogether.	2023-02-01 04:23:55 +01:00
James Almer	beb63baa69	x86/utvideodsp: reuse shared constants ... Remove the broadcast instructions as well now that they are wide enough. Signed-off-by: James Almer <jamrial@gmail.com>	2017-11-21 10:57:14 -03:00
Martin Vignali	caf51a573d	avcodec/x86/utvideodsp.asm : cosmetic ... better func separator and add comment for the restore rgb planes10 declaration	2017-11-21 09:00:47 +01:00
Martin Vignali	b5ebe38443	avcodec/utvideodsp : add avx2 version for the dsp	2017-11-21 09:00:42 +01:00
Martin Vignali	48b7c45b0c	avcodec/x86/utvideodsp : make macro for func	2017-11-21 09:00:38 +01:00
James Almer	440285474b	x86/utvideodsp: make restore_rgb_planes functions work on x86_32 ... Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: James Almer <jamrial@gmail.com>	2017-07-04 22:49:45 -03:00
Paul B Mahol	4ed7c2bbc3	avcodec/utvideodec: add SIMD for restore_rgb_planes ... Signed-off-by: Paul B Mahol <onemda@gmail.com>	2017-06-27 09:54:10 +02:00