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Specialized double-SHA256 with 64 byte inputs with SSE4.1 and AVX2

Description

Specialized double-SHA256 with 64 byte inputs with SSE4.1 and AVX2

Summary:

  • Benchmark Merkle root computation
  • Refactor SHA256 code
  • Specialized double sha256 for 64 byte inputs
  • Use SHA256D64 in Merkle root computation
  • 4-way SSE4.1 implementation for double SHA256 on 64-byte inputs
  • 8-way AVX2 implementation for double SHA256 on 64-byte inputs
  • [MOVEONLY] Move unused Merkle branch code to tests
  • Enable double-SHA256-for-64-byte code on 32-bit x86
  • For AVX2 code, also check for AVX, XSAVE, and OS support

This is a backport of Core PR13191, PR13393 and PR13471

Depends on D1844 and D1845

Test Plan:

make check

Reviewers: #bitcoin_abc, schancel

Reviewed By: #bitcoin_abc, schancel

Subscribers: teamcity

Differential Revision: https://reviews.bitcoinabc.org/D1846

Details

Provenance
Pieter Wuille <pieter.wuille@gmail.com>Authored on Sep 28 2017, 00:36
deadalnixCommitted on Oct 8 2018, 23:34
deadalnixPushed on Oct 8 2018, 23:34
Reviewer
Restricted Project
Differential Revision
D1846: Specialized double-SHA256 with 64 byte inputs with SSE4.1 and AVX2
Parents
rABC60474bba1df0: Added txtools utility functions
Branches
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Tags
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