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author	Nathan Moinvaziri <nathan@nathanm.com>
	Tue, 24 May 2022 18:44:20 +0000 (11:44 -0700)
committer	Hans Kristian Rosbach <hk-github@circlestorm.org>
	Wed, 25 May 2022 10:04:35 +0000 (12:04 +0200)
commit	a6155234a2aa34b4562570dbd359a2a505962a01
tree	fffecc2105016a315c3da7d3d77caaf4d9ff05e4	tree \| snapshot
parent	d79984b5bcaccab15e6cd13d7d1edea32ac36977	commit \| diff

Speed up software CRC-32 computation by a factor of 1.5 to 3.
Use the interleaved method of Kadatch and Jenkins in order to make
use of pipelined instructions through multiple ALUs in a single
core. This also speeds up and simplifies the combination of CRCs,
and updates the functions to pre-calculate and use an operator for
CRC combination.

Co-authored-by: Nathan Moinvaziri <nathan@nathanm.com>

27 files changed:

CMakeLists.txt		diff \| blob \| blame \| history
Makefile.in		diff \| blob \| blame \| history
arch/power/crc32_power8.c		diff \| blob \| blame \| history
arch/s390/crc32-vx.c		diff \| blob \| blame \| history
arch/x86/crc32_fold_pclmulqdq.c		diff \| blob \| blame \| history
cpu_features.h		diff \| blob \| blame \| history
crc32.c	[deleted file]	blob \| blame \| history
crc32_braid.c	[new file with mode: 0644]	blob
crc32_braid_comb.c	[new file with mode: 0644]	blob
crc32_braid_comb_p.h	[new file with mode: 0644]	blob
crc32_braid_p.h	[new file with mode: 0644]	blob
crc32_braid_tbl.h	[new file with mode: 0644]	blob
crc32_comb.c	[deleted file]	blob \| blame \| history
crc32_comb_tbl.h	[deleted file]	blob \| blame \| history
crc32_p.h	[deleted file]	blob \| blame \| history
crc32_tbl.h	[deleted file]	blob \| blame \| history
doc/crc-doc.1.0.pdf	[new file with mode: 0644]	blob
functable.c		diff \| blob \| blame \| history
test/benchmarks/benchmark_crc32.cc		diff \| blob \| blame \| history
test/fuzz/fuzzer_checksum.c		diff \| blob \| blame \| history
test/test_crc32.cc		diff \| blob \| blame \| history
tools/makecrct.c		diff \| blob \| blame \| history
win32/Makefile.a64		diff \| blob \| blame \| history
win32/Makefile.arm		diff \| blob \| blame \| history
win32/Makefile.msc		diff \| blob \| blame \| history
zlib-ng.h.in		diff \| blob \| blame \| history
zlib.h.in		diff \| blob \| blame \| history

Mirror of https://github.com/zlib-ng/zlib-ng.git

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