Files
2026-07-13 13:33:03 +08:00

23 lines
985 B
C++

#include <riscv_vector.h>
void MNNCopyC4WithStride(const float* source, float* dest, size_t srcStride, size_t dstStride, size_t count) {
ptrdiff_t srcStrideByte = srcStride * sizeof(float);
ptrdiff_t dstStrideByte = dstStride * sizeof(float);
size_t vl;
for (size_t i = count; i > 0; i -= vl) {
vl = __riscv_vsetvl_e32m8(i);
vfloat32m8_t data = __riscv_vlse32_v_f32m8(source + 0, srcStrideByte, vl);
__riscv_vsse32_v_f32m8(dest + 0, dstStrideByte, data, vl);
data = __riscv_vlse32_v_f32m8(source + 1, srcStrideByte, vl);
__riscv_vsse32_v_f32m8(dest + 1, dstStrideByte, data, vl);
data = __riscv_vlse32_v_f32m8(source + 2, srcStrideByte, vl);
__riscv_vsse32_v_f32m8(dest + 2, dstStrideByte, data, vl);
data = __riscv_vlse32_v_f32m8(source + 3, srcStrideByte, vl);
__riscv_vsse32_v_f32m8(dest + 3, dstStrideByte, data, vl);
source += vl * srcStride;
dest += vl * dstStride;
}
}