From 3d79afbe700ade76b77de84245f22010e65ce1bb Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= Date: Fri, 14 Jul 2023 22:53:35 +0300 Subject: [PATCH] lavu/fixed_dsp: unroll RISC-V V loop Before: butterflies_fixed_c: 804.7 butterflies_fixed_rvv_i32: 348.2 After: butterflies_fixed_rvv_i32: 308.7 --- libavutil/riscv/fixed_dsp_rvv.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavutil/riscv/fixed_dsp_rvv.S b/libavutil/riscv/fixed_dsp_rvv.S index a91316e1da..6e13395294 100644 --- a/libavutil/riscv/fixed_dsp_rvv.S +++ b/libavutil/riscv/fixed_dsp_rvv.S @@ -23,7 +23,7 @@ // (a0) = (a0) + (a1), (a1) = (a0) - (a1) [0..a2-1] func ff_butterflies_fixed_rvv, zve32x 1: - vsetvli t0, a2, e32, m1, ta, ma + vsetvli t0, a2, e32, m4, ta, ma vle32.v v16, (a0) sub a2, a2, t0 vle32.v v24, (a1)