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author	John Naylor <john.naylor@postgresql.org>
	Thu, 10 Aug 2023 04:36:15 +0000 (11:36 +0700)
committer	John Naylor <john.naylor@postgresql.org>
	Thu, 10 Aug 2023 04:36:15 +0000 (11:36 +0700)
commit	4d14ccd6af6e788a7b79ff3ed77bda5bc71d2edc
tree	bef29664090f4cad6db22352d3c8a401bf724c27	tree
parent	fa2e874946c5b9f23394358c131e987df7cc8ffb	commit \| diff

Use native CRC instructions on 64-bit LoongArch

As with the Intel and Arm CRC instructions, compiler intrinsics for
them must be supported by the compiler. In contrast, no runtime check
is needed. Aligned memory access is faster, so use the Arm coding as
a model.

YANG Xudong

Discussion: https://postgr.es/m/b522a0c5-e3b2-99cc-6387-58134fb88cbe%40ymatrix.cn

config/c-compiler.m4		diff \| blob \| blame \| history
configure		diff \| blob \| blame \| history
configure.ac		diff \| blob \| blame \| history
meson.build		diff \| blob \| blame \| history
src/include/pg_config.h.in		diff \| blob \| blame \| history
src/include/port/pg_crc32c.h		diff \| blob \| blame \| history
src/port/meson.build		diff \| blob \| blame \| history
src/port/pg_crc32c_loongarch.c	[new file with mode: 0644]	blob

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