From: "Rémi Denis-Courmont" <remi@remlab.net>
To: ffmpeg-devel@ffmpeg.org
Subject: [FFmpeg-devel] [PATCH 1/5] lavc/aacpsdsp: simplify R-V V stereo interpolate
Date: Fri, 29 Sep 2023 19:26:01 +0300
Message-ID: <20230929162605.80421-1-remi@remlab.net> (raw)
Remove some useless vector splat.
---
libavcodec/riscv/aacpsdsp_rvv.S | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/libavcodec/riscv/aacpsdsp_rvv.S b/libavcodec/riscv/aacpsdsp_rvv.S
index b581383f77..b85a5cc92c 100644
--- a/libavcodec/riscv/aacpsdsp_rvv.S
+++ b/libavcodec/riscv/aacpsdsp_rvv.S
@@ -238,20 +238,16 @@ func ff_ps_stereo_interpolate_rvv, zve32f
flw ft1, 4(a3)
vfmv.v.f v19, ft3
flw ft2, 8(a3)
- vfmv.v.f v20, ft0
flw ft3, 12(a3)
- vfmv.v.f v21, ft1
fcvt.s.wu ft4, t0 // (float)(vlenb / sizeof (float))
- vfmv.v.f v22, ft2
+ vfmacc.vf v16, ft0, v24 // h0 += (i + 1) * h0_step
fmul.s ft0, ft0, ft4
- vfmv.v.f v23, ft3
+ vfmacc.vf v17, ft1, v24
fmul.s ft1, ft1, ft4
- vfmacc.vv v16, v24, v20 // h0 += (i + 1) * h0_step
+ vfmacc.vf v18, ft2, v24
fmul.s ft2, ft2, ft4
- vfmacc.vv v17, v24, v21
+ vfmacc.vf v19, ft3, v24
fmul.s ft3, ft3, ft4
- vfmacc.vv v18, v24, v22
- vfmacc.vv v19, v24, v23
1:
vsetvli t0, a4, e32, m1, ta, ma
vlseg2e32.v v8, (a0) // v8:l_re, v9:l_im
--
2.40.1
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next reply other threads:[~2023-09-29 16:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-29 16:26 Rémi Denis-Courmont [this message]
2023-09-29 16:26 ` [FFmpeg-devel] [PATCH 2/5] lavc/aacpsdsp: unroll " Rémi Denis-Courmont
2023-09-29 16:26 ` [FFmpeg-devel] [PATCH 3/5] lavc/aacpsdsp: unroll RISC-V V mul_pair_single Rémi Denis-Courmont
2023-09-29 16:26 ` [FFmpeg-devel] [PATCH 4/5] lavc/aacpsdsp: unroll RISC-V V hybrid_analysis_ileave Rémi Denis-Courmont
2023-09-29 16:26 ` [FFmpeg-devel] [PATCH 5/5] lavc/aacpsdsp: unroll RISC-V V hybrid_synthesis_deint Rémi Denis-Courmont
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