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Implement System.Buffers.Text.Base64.DecodeFromUtf8 for Arm64 #70336

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Implement System.Buffers.Text.Base64.DecodeFromUtf8 for Arm64 #70336

wants to merge 1 commit into from

Commits on Jun 7, 2022

  1. Implement System.Buffers.Text.Base64.DecodeFromUtf8 for Arm64 

    Like the AVX2 and SSE3 versions, this is based off the Aklomp base64
algorithm.

The AdvSimd API does not yet have support for squential multi register
instructions, such as TBL4/LD4/ST3. This code implements the those
instructions using single register instructions. Once API support is
added, this code can be greatly simplified and get an additional
performance boost.
    @a74nh
    a74nh committed Jun 7, 2022
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