From 4f49b16079b27d7ce633619e4cddfdf2bffbc952 Mon Sep 17 00:00:00 2001 From: cashmere Date: Fri, 4 Sep 2026 09:05:24 +0200 Subject: initial commit --- compat/zlib/contrib/crc32vx/README | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100644 compat/zlib/contrib/crc32vx/README (limited to 'compat/zlib/contrib/crc32vx/README') diff --git a/compat/zlib/contrib/crc32vx/README b/compat/zlib/contrib/crc32vx/README new file mode 100644 index 0000000..329610d --- /dev/null +++ b/compat/zlib/contrib/crc32vx/README @@ -0,0 +1,9 @@ +IBM Z mainframes starting from version z13 provide vector instructions, which +allows vectorization of crc32. This extension is build by default when targeting +ibm s390x. However this extension can disabled if desired: + + # for configure build + $ ./configure --disable-crcvx + + # for cmake build + $ cmake .. -DZLIB_CRC32VX=off -- cgit v1.3.1