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FFmpeg/libavutil/riscv
Rémi Denis-Courmont 29b9d616c2 lavu/float_dsp: rework RISC-V V scalar product
1) Take the reductive sum out of the loop,
   leaving a regular vector addition in the loop.
2) Merge the addition and the multiplication.
3) Unroll.

Before:
scalarproduct_float_rvv_f32: 832.5

After:
scalarproduct_float_rvv_f32: 275.2
2023-07-20 22:54:34 +03:00
..
asm.S lavu/riscv: helper macro for VTYPE encoding 2022-10-10 02:22:12 +02:00
bswap.h riscv/bswap: use compiler builtins 2023-05-02 22:08:21 +02:00
cpu.c lavu: add/use flag for RISC-V Zba extension 2023-07-19 19:29:35 +03:00
cpu.h lavu/riscv: helper to read the vector length 2022-09-28 11:43:17 +02:00
fixed_dsp_init.c lavu: add/use flag for RISC-V Zba extension 2023-07-19 19:29:35 +03:00
fixed_dsp_rvv.S lavu/fixed_dsp: unroll RISC-V V loop 2023-07-17 18:48:42 +03:00
float_dsp_init.c lavu: add/use flag for RISC-V Zba extension 2023-07-19 19:29:35 +03:00
float_dsp_rvv.S lavu/float_dsp: rework RISC-V V scalar product 2023-07-20 22:54:34 +03:00
intmath.h riscv/intmath: use builtins for counting ones 2023-05-02 22:08:25 +02:00
Makefile lavu/fixeddsp: RISC-V V butterflies_fixed 2022-09-27 13:19:52 +02:00
timer.h