[FFmpeg-devel] [PATCH 1/2] lavc/vc1dsp: fuse multiply-adds in R-V V inv_trans_4

Rémi Denis-Courmont remi at remlab.net
Mon Jul 1 17:41:20 EEST 2024


T-Head C908 (cycles):            before   after
vc1dsp.vc1_inv_trans_4x4_rvv_i32: 128.0   120.0
vc1dsp.vc1_inv_trans_4x8_rvv_i32: 244.0   240.0
vc1dsp.vc1_inv_trans_8x4_rvv_i32: 239.2   235.2

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