ba57777d7d
GCC 6.3.0 has a known bug which related to _mm512_extracti64x4_epi64. Please reference https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82887 Some DPDK PMD AVX512 version heavily use _mm512_extracti64x4_epi6, which cause building failure with debug buildtype. Therefore, it's helpful to check if compiler work with _mm512_extracti64x4_epi6. This patch check the compiler compile result against the test code snippet. If the checking is failed then disable AVX512. Bugzilla ID: 717 Fixes: e6a6a138919f ("net/i40e: add AVX512 vector path") Fixes: 808a17b3c1e6 ("net/ice: add Rx AVX512 offload path") Fixes: 4b64ccb328c9 ("net/iavf: fix VLAN extraction in AVX512 path") Cc: stable@dpdk.org Reported-by: Liang Ma <liangma@liangbit.com> Signed-off-by: Liang Ma <liangma@bytedance.com> Acked-by: Bruce Richardson <bruce.richardson@intel.com>
DPDK is a set of libraries and drivers for fast packet processing. It supports many processor architectures and both FreeBSD and Linux. The DPDK uses the Open Source BSD-3-Clause license for the core libraries and drivers. The kernel components are GPL-2.0 licensed. Please check the doc directory for release notes, API documentation, and sample application information. For questions and usage discussions, subscribe to: users@dpdk.org Report bugs and issues to the development mailing list: dev@dpdk.org