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Add superscalar fletcher4

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This is the Fletcher4 algorithm implemented in pure C, but using
multiple counters using algorithms identical to those used for
SSE/NEON and AVX2.

This allows for faster execution on core with strong superscalar
capabilities but weak SIMD capabilities.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Romain Dolbeau <romain.dolbeau@atos.net>
Closes #5317
This commit is contained in:
Romain Dolbeau
2016-11-04 18:53:03 +01:00
committed by Brian Behlendorf
parent ace1eae84c
commit 7f3194932d
8 changed files with 405 additions and 2 deletions
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lib/libzpool/Makefile.am
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@@ -26,6 +26,8 @@ KERNEL_C = \
zfs_fletcher_sse.c \
zfs_fletcher_avx512.c \
zfs_fletcher_aarch64_neon.c \
zfs_fletcher_superscalar.c \
zfs_fletcher_superscalar4.c \
zfs_namecheck.c \
zfs_prop.c \
zfs_uio.c \