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LLVM with RVV 0.7.1 support #32

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zaazad opened this issue Nov 28, 2021 · 3 comments
Open

LLVM with RVV 0.7.1 support #32

zaazad opened this issue Nov 28, 2021 · 3 comments

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@zaazad
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zaazad commented Nov 28, 2021

Hi,

I need LLVM support for RVV 0.7.1 to cross compile for Nezha board.
I could find support for older versions such as RVV0.8 and 0.9 in your repo.
Is there any branch with support for RVV 0.7.1 (with auto-vectorization)?

Thank you!

@ChunyuLiao
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Sorry, we don't support RVV 0.7.1.

@kassane
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kassane commented Jun 24, 2022

There the branch 0.7.1 is not referring to rvv?

@joy2myself
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There the branch 0.7.1 is not referring to rvv?

Yes, it is. But branch 0.7.1 is a development branch two years ago. We only added some rvv-0.7.1 instructions to the assembler. The llvm version corresponding to this branch is also very old and does not support auto-vectorization. Therefore, the branch probability cannot meet the existing use requirements.

melonedo added a commit to melonedo/llvm-project that referenced this issue Apr 24, 2023
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