09/11/2021 16:57, David Marchand: > On Tue, Nov 9, 2021 at 4:53 PM Lance Richardson > <lance.richard...@broadcom.com> wrote: > > > > 21.11-rc2 builds are failing on CentOS 8.4, apparently because > > the intrinsic _mm512_set_epi8() is not defined in the GCC > > headers (see example below). > > Thanks for reporting Lance. > It rings a bell, think it was mentionned in the past.
CI compilation was passing: http://mails.dpdk.org/archives/test-report/2021-November/238534.html I would like to better understand. [...] > > Here is a GCC patch to add this intrinsic: > > https://www.mail-archive.com/gcc-patches@gcc.gnu.org/msg188664.html > > > > BTW, GCC 10.2.1 (via "scl enable gcc-toolset-10") is able to build > > 21.11-rc2 successfully on CentOS 8.4. > > > > Lance > > > > # gcc --version > > gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1) [...] > > ../lib/hash/rte_thash_x86_gfni.h:59:24: error: implicit declaration of > > function ‘_mm512_set_epi8’; did you mean ‘_mm512_set1_epi8’? What is different in your setup compared to the CI?
