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Add JIT intrinsic support to take advantage of Intel SSE4.2 crc32 instruction #6959

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sivarv opened this issue Nov 11, 2016 · 2 comments
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Add JIT intrinsic support to take advantage of Intel SSE4.2 crc32 instruction #6959

sivarv opened this issue Nov 11, 2016 · 2 comments
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area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI enhancement Product code improvement that does NOT require public API changes/additions optimization tenet-performance Performance related issue
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Future

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@sivarv
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sivarv commented Nov 11, 2016

Scenario: Bing team needs to copy Giga bytes of data from Cosmos to Bing servers. Receiving side uses crc32 of the data to verify that the data is correctly received.

On targets where SSE4.2 is not supported, managed implementation should fall-back to a non-accelerated CRC-32C algorithm that intel uses.

This needs to be supported both on Desktop and CoreCLR.
@redknightlois
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This is an special case of https://github.com/dotnet/corefx/issues/2209 .. we even discussed CRC32 specifically.

@fiigii
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fiigii commented Oct 23, 2017

This issue is fixed by dotnet/coreclr#14456 on CoreCLR.

@msftgits msftgits transferred this issue from dotnet/coreclr Jan 31, 2020
@msftgits msftgits added this to the Future milestone Jan 31, 2020
@ghost ghost locked as resolved and limited conversation to collaborators Dec 27, 2020
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area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI enhancement Product code improvement that does NOT require public API changes/additions optimization tenet-performance Performance related issue
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@redknightlois @fiigii @CarolEidt @msftgits @sivarv