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[FFmpeg-devel] lavu/float_dsp: adjust multipler in R-V V fmul_window

Message ID 20231004183423.24830-1-remi@remlab.net
State Accepted
Commit 9091ffb006def39523ac2d21d6725ef1d82ab3fc
Headers show
Series [FFmpeg-devel] lavu/float_dsp: adjust multipler in R-V V fmul_window | expand

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yinshiyou/make_loongarch64 success Make finished
yinshiyou/make_fate_loongarch64 success Make fate finished

Commit Message

Rémi Denis-Courmont Oct. 4, 2023, 6:34 p.m. UTC 
The gather index vector is only used as double-length (due to register
pressure), so no need to initialise it for quad-length. Basically this
matches the multiplier in the prologue to the the multipler in the loop.
---
 libavutil/riscv/float_dsp_rvv.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/libavutil/riscv/float_dsp_rvv.S b/libavutil/riscv/float_dsp_rvv.S
index 91b70bf148..a2f9488249 100644
--- a/libavutil/riscv/float_dsp_rvv.S
+++ b/libavutil/riscv/float_dsp_rvv.S
@@ -75,7 +75,7 @@  endfunc
 
 func ff_vector_fmul_window_rvv, zve32f
         // a0: dst, a1: src0, a2: src1, a3: window, a4: length
-        vsetvli    t0, zero, e16, m4, ta, ma
+        vsetvli    t0, zero, e16, m2, ta, ma
         sh2add     a2, a4, a2
         vid.v      v0
         sh3add     t3, a4, a3