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2bb6264105
For cases when returning early without updating any pixels, we
previously returned to return address in the caller's scope,
bypassing one function entirely. While this may seem like a neat
optimization, it makes the return stack predictor mispredict
the returns - which potentially can cost more performance than
it gains.
Secondly, if the armv9.3 feature GCS (Guarded Control Stack) is
enabled, then returns _must_ match the expected value; this feature
is being enabled across linux distributions, and by fixing the
hevc assembly, we can enable the security feature on ffmpeg as well.
(cherry picked from commit
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| .. | ||
| h26x | ||
| vvc | ||
| aacencdsp_init.c | ||
| aacencdsp_neon.S | ||
| aacpsdsp_init_aarch64.c | ||
| aacpsdsp_neon.S | ||
| ac3dsp_init_aarch64.c | ||
| ac3dsp_neon.S | ||
| cabac.h | ||
| fdct.h | ||
| fdctdsp_init_aarch64.c | ||
| fdctdsp_neon.S | ||
| fmtconvert_init.c | ||
| fmtconvert_neon.S | ||
| h264chroma_init_aarch64.c | ||
| h264cmc_neon.S | ||
| h264dsp_init_aarch64.c | ||
| h264dsp_neon.S | ||
| h264idct_neon.S | ||
| h264pred_init.c | ||
| h264pred_neon.S | ||
| h264qpel_init_aarch64.c | ||
| h264qpel_neon.S | ||
| hevcdsp_deblock_neon.S | ||
| hevcdsp_dequant_neon.S | ||
| hevcdsp_idct_neon.S | ||
| hevcdsp_init_aarch64.c | ||
| hpeldsp_init_aarch64.c | ||
| hpeldsp_neon.S | ||
| huffyuvdsp_init_aarch64.c | ||
| huffyuvdsp_neon.S | ||
| idct.h | ||
| idctdsp_init_aarch64.c | ||
| idctdsp_neon.S | ||
| Makefile | ||
| me_cmp_init_aarch64.c | ||
| me_cmp_neon.S | ||
| mpegaudiodsp_init.c | ||
| mpegaudiodsp_neon.S | ||
| mpegvideoencdsp_init.c | ||
| mpegvideoencdsp_neon.S | ||
| neon.S | ||
| neontest.c | ||
| opusdsp_init.c | ||
| opusdsp_neon.S | ||
| pixblockdsp_init_aarch64.c | ||
| pixblockdsp_neon.S | ||
| pngdsp_init.c | ||
| pngdsp_neon.S | ||
| rv40dsp_init_aarch64.c | ||
| sbrdsp_init_aarch64.c | ||
| sbrdsp_neon.S | ||
| simple_idct_neon.S | ||
| synth_filter_init.c | ||
| synth_filter_neon.S | ||
| vc1dsp_init_aarch64.c | ||
| vc1dsp_neon.S | ||
| videodsp.S | ||
| videodsp_init.c | ||
| vorbisdsp_init.c | ||
| vorbisdsp_neon.S | ||
| vp8dsp.h | ||
| vp8dsp_init_aarch64.c | ||
| vp8dsp_neon.S | ||
| vp9dsp_init.h | ||
| vp9dsp_init_10bpp_aarch64.c | ||
| vp9dsp_init_12bpp_aarch64.c | ||
| vp9dsp_init_16bpp_aarch64_template.c | ||
| vp9dsp_init_aarch64.c | ||
| vp9itxfm_16bpp_neon.S | ||
| vp9itxfm_neon.S | ||
| vp9lpf_16bpp_neon.S | ||
| vp9lpf_neon.S | ||
| vp9mc_16bpp_neon.S | ||
| vp9mc_aarch64.S | ||
| vp9mc_neon.S | ||