diff mbox series

[FFmpeg-devel] lavc/vorbisdsp: unroll RISC-V V inverse_coupling

Message ID 20230713201957.10725-1-remi@remlab.net
State Accepted
Commit a28aa0475db99cc66c37c98fd5330e313817709c
Headers show
Series [FFmpeg-devel] lavc/vorbisdsp: unroll RISC-V V inverse_coupling | expand

Checks

Context Check Description
yinshiyou/make_loongarch64 success Make finished
yinshiyou/make_fate_loongarch64 success Make fate finished
andriy/make_x86 success Make finished
andriy/make_fate_x86 success Make fate finished

Commit Message

Rémi Denis-Courmont July 13, 2023, 8:19 p.m. UTC 
This increases the group multiplier as per T-Head C910 benchmarks:

inverse_coupling_c: 4597.0
inverse_coupling_rvv_i32: 1312.7 (m1)
inverse_coupling_rvv_i32: 1116.7 (m2)
inverse_coupling_rvv_i32: 732.2  (m4)
inverse_coupling_rvv_i32: 898.0  (m8)
---
 libavcodec/riscv/vorbisdsp_rvv.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/libavcodec/riscv/vorbisdsp_rvv.S b/libavcodec/riscv/vorbisdsp_rvv.S
index f45e7dc2f1..81a6c62a65 100644
--- a/libavcodec/riscv/vorbisdsp_rvv.S
+++ b/libavcodec/riscv/vorbisdsp_rvv.S
@@ -23,7 +23,7 @@ 
 func ff_vorbis_inverse_coupling_rvv, zve32f
         fmv.w.x   ft0, zero
 1:
-        vsetvli   t0, a2, e32, m1, ta, ma
+        vsetvli   t0, a2, e32, m4, ta, ma
         vle32.v   v16, (a1)
         sub       a2, a2, t0
         vle32.v   v24, (a0)