Rémi Denis-Courmont 324899b748 lavu/riscv: use Zbb REV8 at run-time ... This adds runtime support to use Zbb REV8 for 32- and 64-bit byte-wise swaps. The result is about five times slower than if targetting Zbb statically, but still a lot faster than the default bespoke C code or a call to GCC run-time functions. For 16-bit swap, this is however unsurprisingly a lot worse, and so this sticks to the baseline. In fact, even using REV8 statically does not seem to be beneficial in that case. Zbb static Zbb dynamic I baseline bswap16: 0.668184765 3.340764069 0.668029012 bswap32: 0.668174014 3.340763319 9.353855435 bswap64: 0.668221765 3.340496313 14.698672283 (seconds for 1 billion iterations on a SiFive-U74 core)		2024-06-11 20:12:37 +03:00
..
asm.S	riscv: allow passing addend to vtype_vli macro	2024-05-30 18:30:52 +03:00
bswap_rvb.S
bswap.h	lavu/riscv: use Zbb REV8 at run-time	2024-06-11 20:12:37 +03:00
cpu_common.c	riscv: probe for Zbb extension at load time	2024-06-11 20:12:37 +03:00
cpu.c	lavu/riscv: fix parsing the unaligned access capability	2024-05-15 20:04:08 +03:00
cpu.h	riscv: probe for Zbb extension at load time	2024-06-11 20:12:37 +03:00
fixed_dsp_init.c
fixed_dsp_rvv.S
float_dsp_init.c	lavu/float_dsp: R-V V scalarproduct_double	2024-05-31 22:22:43 +03:00
float_dsp_rvv.S	lavu/float_dsp: R-V V scalarproduct_double	2024-05-31 22:22:43 +03:00
intmath.h
lls_init.c	lavu/lls: R-V V update_lls	2024-06-01 18:05:58 +03:00
lls_rvv.S	lavu/lls: R-V V update_lls	2024-06-01 18:05:58 +03:00
Makefile	riscv: probe for Zbb extension at load time	2024-06-11 20:12:37 +03:00
timer.h