af_afir: RISC-V V fcmul_add
Segmented loads are slow, so here we use unit-strided load and narrowing shifts.
c910:
fcmul_add_c: 2179
fcmul_add_rvv_f64: 1652
c908:
fcmul_add_c: 4891.2
fcmul_add_rvv_f64: 2399.5
Signed-off-by:
Rémi Denis-Courmont <remi@remlab.net>
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libavfilter/riscv/Makefile
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