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根据我目前的信息,有些库是兼容0.7的,有的是采用 intrinsic,很疑惑,到底该怎木选择?
这里用的是 intrinsic https://chromium.googlesource.com/libyuv/libyuv/+/refs/heads/main/source/row_rvv.cc
这里采用纯汇编的方式实现 https://github.com/FFmpeg/FFmpeg/tree/master/libavutil/riscv
截止目前,rvv1.0 的intrinsic 接口尚未完全定义好,为了测试 rvv1.0 的 intrinsic接口,我必须把 riscv-gnu-toolchain 中的 gcc 切到master分支,似乎 **gcc14 ?**中才兼容 rvv1.0 的 intrinsic
此外,有些接口不支持intrinsic ,比如 "setvl", "vundefined", "viota", "vmclr", "vmset_", "vid", "vmv_v_x", "vfmv_v_f", "vread_csr", "vwrite_csr", "vcreate", "vlm_v" 参见: rvv-intrinsic-doc/rvv-intrinsic-generator/rvv_intrinsic_gen/generator.py
"setvl", "vundefined", "viota", "vmclr", "vmset_", "vid", "vmv_v_x", "vfmv_v_f", "vread_csr", "vwrite_csr", "vcreate", "vlm_v"
The text was updated successfully, but these errors were encountered:
可以先不考虑 v0.7 吧,毕竟 rvv 1.0 现在已经正式发布了。
至于用 c intrinsic 还是 assembly, 我建议优先 c intrinsic,intrinsic 正式发布 1.0 应该快了吧,先用起来再说。
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根据我目前的信息,有些库是兼容0.7的,有的是采用 intrinsic,很疑惑,到底该怎木选择?
这里用的是 intrinsic
https://chromium.googlesource.com/libyuv/libyuv/+/refs/heads/main/source/row_rvv.cc
这里采用纯汇编的方式实现
https://github.com/FFmpeg/FFmpeg/tree/master/libavutil/riscv
截止目前,rvv1.0 的intrinsic 接口尚未完全定义好,为了测试 rvv1.0 的 intrinsic接口,我必须把 riscv-gnu-toolchain 中的 gcc 切到master分支,似乎 **gcc14 ?**中才兼容 rvv1.0 的 intrinsic
此外,有些接口不支持intrinsic ,比如
"setvl", "vundefined", "viota", "vmclr", "vmset_", "vid", "vmv_v_x", "vfmv_v_f", "vread_csr", "vwrite_csr", "vcreate", "vlm_v"
参见: rvv-intrinsic-doc/rvv-intrinsic-generator/rvv_intrinsic_gen/generator.py
The text was updated successfully, but these errors were encountered: