postgres

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Nathan Bossart f8f4afe751 Optimize vector8_has_le() on AArch64. Presently, the SIMD implementation of this function uses unsigned saturating subtraction to find bytes less than or equal to the given value, which is a workaround for the lack of unsigned comparison instructions on some architectures. However, Neon offers vminvq_u8(), which returns the minimum (unsigned) value in the vector. This commit adds a Neon-specific implementation that uses vminvq_u8() to optimize vector8_has_le() on AArch64. In passing, adjust the SSE2 implementation to use vector8_min() and vector8_eq() to find values less than or equal to the given value. This was the only use of vector8_ssub(), so it has been removed. Reviewed-by: John Naylor <johncnaylorls@gmail.com> Discussion: https://postgr.es/m/aNHDNDSHleq0ogC_%40nathan		3 months ago
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atomics	Remove traces of support for Sun Studio compiler	4 months ago
win32	Fix gai_strerror() thread-safety on Windows.	2 years ago
win32_msvc	…
atomics.h	Remove traces of support for Sun Studio compiler	4 months ago
cygwin.h	…
darwin.h	Add prefetching support on macOS	1 year ago
freebsd.h	Improve the naming in wal_sync_method code.	2 years ago
linux.h	Improve the naming in wal_sync_method code.	2 years ago
netbsd.h	…
openbsd.h	…
pg_bitutils.h	Optimize popcount functions with ARM SVE intrinsics.	9 months ago
pg_bswap.h	Grab the low-hanging fruit from forcing sizeof(Datum) to 8.	5 months ago
pg_crc32c.h	Remove implicit cast from 'void *'	6 months ago
pg_iovec.h	Make sure IOV_MAX is defined.	6 months ago
pg_lfind.h	Update copyright for 2025	12 months ago
pg_numa.h	Fix indentation in pg_numa code	6 months ago
pg_pthread.h	IWYU widely useful pragmas	12 months ago
simd.h	Optimize vector8_has_le() on AArch64.	3 months ago
solaris.h	Remove traces of support for Sun Studio compiler	4 months ago
win32.h	…
win32_port.h	Revert "Tidy up locale thread safety in ECPG library."	9 months ago
win32ntdll.h	Update copyright for 2025	12 months ago