FFmpeg/libavfilter/x86
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
..
af_afir_init.c
af_afir.asm
af_anlmdn_init.c
af_anlmdn.asm
af_volume_init.c
af_volume.asm x86: replace explicit REP_RETs with RETs 2023-02-01 04:23:55 +01:00
avf_showcqt_init.c
avf_showcqt.asm x86: replace explicit REP_RETs with RETs 2023-02-01 04:23:55 +01:00
colorspacedsp_init.c
colorspacedsp.asm
Makefile
scene_sad_init.c
scene_sad.asm x86: replace explicit REP_RETs with RETs 2023-02-01 04:23:55 +01:00
vf_atadenoise_init.c
vf_atadenoise.asm
vf_blend_init.c
vf_blend.asm x86: replace explicit REP_RETs with RETs 2023-02-01 04:23:55 +01:00
vf_bwdif_init.c avfilter/x86/vf_bwdif: Remove obsolete MMXEXT functions 2022-06-22 13:38:14 +02:00
vf_bwdif.asm avfilter/x86/vf_bwdif: Remove obsolete MMXEXT functions 2022-06-22 13:38:14 +02:00
vf_convolution_init.c libavfilter/x86/vf_convolution: add sobel filter optimization and unit test with intel AVX512 VNNI 2022-11-14 10:04:16 +08:00
vf_convolution.asm libavfilter/x86/vf_convolution: fix sobel swap issue on WIN64 2022-11-21 12:28:25 +08:00
vf_eq_init.c avfilter/x86/vf_eq_init: Remove obsolete MMXEXT function 2022-06-22 13:36:31 +02:00
vf_eq.asm avfilter/x86/vf_eq_init: Remove obsolete MMXEXT function 2022-06-22 13:36:31 +02:00
vf_framerate_init.c
vf_framerate.asm x86: replace explicit REP_RETs with RETs 2023-02-01 04:23:55 +01:00
vf_fspp_init.c
vf_fspp.asm
vf_gblur_init.c
vf_gblur.asm
vf_gradfun_init.c
vf_gradfun.asm x86: replace explicit REP_RETs with RETs 2023-02-01 04:23:55 +01:00
vf_hflip_init.c
vf_hflip.asm
vf_hqdn3d_init.c
vf_hqdn3d.asm x86: replace explicit REP_RETs with RETs 2023-02-01 04:23:55 +01:00
vf_idet_init.c avfilter/x86/vf_idet: Remove obsolete MMX(EXT) functions 2022-06-22 13:38:01 +02:00
vf_idet.asm avfilter/x86/vf_idet: Remove obsolete MMX(EXT) functions 2022-06-22 13:38:01 +02:00
vf_interlace.asm x86: replace explicit REP_RETs with RETs 2023-02-01 04:23:55 +01:00
vf_limiter_init.c
vf_limiter.asm
vf_lut3d_init.c
vf_lut3d.asm
vf_maskedclamp_init.c
vf_maskedclamp.asm
vf_maskedmerge_init.c
vf_maskedmerge.asm x86: replace explicit REP_RETs with RETs 2023-02-01 04:23:55 +01:00
vf_nlmeans_init.c
vf_nlmeans.asm
vf_noise.c
vf_overlay_init.c
vf_overlay.asm
vf_pp7_init.c
vf_pp7.asm
vf_psnr_init.c
vf_psnr.asm
vf_pullup_init.c
vf_pullup.asm
vf_removegrain_init.c
vf_removegrain.asm
vf_spp.c
vf_ssim_init.c
vf_ssim.asm
vf_stereo3d_init.c
vf_stereo3d.asm x86: replace explicit REP_RETs with RETs 2023-02-01 04:23:55 +01:00
vf_threshold_init.c
vf_threshold.asm avfilter/vf_threshold: fix handling of zero threshold 2022-10-27 10:23:24 +02:00
vf_tinterlace_init.c
vf_transpose_init.c
vf_transpose.asm
vf_v360_init.c
vf_v360.asm
vf_w3fdif_init.c
vf_w3fdif.asm x86: replace explicit REP_RETs with RETs 2023-02-01 04:23:55 +01:00
vf_yadif_init.c avfilter/x86/vf_yadif: Remove obsolete MMXEXT functions 2022-06-22 13:37:48 +02:00
vf_yadif.asm avfilter/x86/vf_yadif: Remove obsolete MMXEXT functions 2022-06-22 13:37:48 +02:00
yadif-10.asm avfilter/x86/vf_yadif: Remove obsolete MMXEXT functions 2022-06-22 13:37:48 +02:00
yadif-16.asm avfilter/x86/vf_yadif: Remove obsolete MMXEXT functions 2022-06-22 13:37:48 +02:00