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[C++] Add SSE4.2-accelerated hash kernels and use if host CPU supports #17817

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asfimport opened this issue Nov 16, 2017 · 1 comment
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@asfimport
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asfimport commented Nov 16, 2017

SSE4.2 has CRC32 intrinsics that can be used to compute hash values. It seems it may be acceptable to use -msse4.2 on isolated compilation units, but if this object code is used on a machine without support for the SIMD instructions, then it will crash

Reporter: Wes McKinney / @wesm
Assignee: Antoine Pitrou / @pitrou

Related issues:

Note: This issue was originally created as ARROW-1822. Please see the migration documentation for further details.

@asfimport
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Todd Farmer / @toddfarmer:
Transitioning issue from Resolved to Closed to based on resolution field value.

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