ffmpeg | branch: master | Rémi Denis-Courmont <r...@remlab.net> | Sat Jul 15 23:23:50 2023 +0300| [eb508702a899f4a41d3653d90b077b487083d2ab] | committer: Rémi Denis-Courmont
lavc/aacpsdsp: rework R-V V add_squares Segmented loads may be slower than not. So this advantageously uses a unit-strided load and narrowing shifts instead. Before: ps_add_squares_c: 60757.7 ps_add_squares_rvv_f32: 22242.5 After: ps_add_squares_c: 60516.0 ps_add_squares_rvv_i64: 17067.7 > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=eb508702a899f4a41d3653d90b077b487083d2ab --- libavcodec/riscv/aacpsdsp_init.c | 3 ++- libavcodec/riscv/aacpsdsp_rvv.S | 9 ++++++--- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/libavcodec/riscv/aacpsdsp_init.c b/libavcodec/riscv/aacpsdsp_init.c index c5ec796232..f72d1bc330 100644 --- a/libavcodec/riscv/aacpsdsp_init.c +++ b/libavcodec/riscv/aacpsdsp_init.c @@ -46,7 +46,8 @@ av_cold void ff_psdsp_init_riscv(PSDSPContext *c) c->hybrid_analysis = ff_ps_hybrid_analysis_rvv; if (flags & AV_CPU_FLAG_RVB_ADDR) { - c->add_squares = ff_ps_add_squares_rvv; + if (flags & AV_CPU_FLAG_RVV_I64) + c->add_squares = ff_ps_add_squares_rvv; c->mul_pair_single = ff_ps_mul_pair_single_rvv; c->stereo_interpolate[0] = ff_ps_stereo_interpolate_rvv; } diff --git a/libavcodec/riscv/aacpsdsp_rvv.S b/libavcodec/riscv/aacpsdsp_rvv.S index fe250cd83b..cf872599c8 100644 --- a/libavcodec/riscv/aacpsdsp_rvv.S +++ b/libavcodec/riscv/aacpsdsp_rvv.S @@ -1,5 +1,5 @@ /* - * Copyright © 2022 Rémi Denis-Courmont. + * Copyright © 2022-2023 Rémi Denis-Courmont. * * This file is part of FFmpeg. * @@ -20,13 +20,16 @@ #include "libavutil/riscv/asm.S" -func ff_ps_add_squares_rvv, zve32f +func ff_ps_add_squares_rvv, zve64f + li t1, 32 1: vsetvli t0, a2, e32, m4, ta, ma - vlseg2e32.v v24, (a1) + vle64.v v8, (a1) sub a2, a2, t0 + vnsrl.wx v24, v8, zero vle32.v v16, (a0) sh3add a1, t0, a1 + vnsrl.wx v28, v8, t1 vfmacc.vv v16, v24, v24 vfmacc.vv v16, v28, v28 vse32.v v16, (a0) _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
