Horton

Abstract some more architecture-specific details away from SIMD functionality

John Naylor <john.naylor@postgresql.org>

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Commit: f8f19f70868c6351b80f02a47fa65d56b728a5a2
Author: John Naylor <john.naylor@postgresql.org>
Date: 2022-08-29T07:20:09Z
Releases: 16.0 
Abstract some more architecture-specific details away from SIMD functionality

Add a typedef to represent vectors containing four 32-bit integers,
and add functions operating on them. Also separate out saturating
subtraction into its own function. The motivation for this is to
prepare for a future commit to add ARM NEON support.

Nathan Bossart

Reviewed by John Naylor and Tom Lane
Discussion: https://www.postgresql.org/message-id/flat/CAFBsxsEyR9JkfbPcDXBRYEfdfC__OkwVGdwEAgY4Rv0cvw35EA%40mail.gmail.com#aba7a64b11503494ffd8dd27067626a9

Files

PathChange+/−
src/include/port/pg_lfind.h modified +39 −26
src/include/port/simd.h modified +82 −17

Discussion

Cited messages not in the archive: CAFBsxsEyR9JkfbPcDXBRYEfdfC__OkwVGdwEAgY4Rv0cvw35EA@mail.gmail.com#aba7a64b11503494ffd8dd27067626a9