[Bug target/119596] x86: too eager use of rep movsq/rep stosq for inlined ops

[ak at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119596

--- Comment #11 from ak at gcc dot gnu.org ---
#define m_CORE_AVX512 (m_SKYLAKE_AVX512 | m_CANNONLAKE \
                       | m_ICELAKE_CLIENT | m_ICELAKE_SERVER | m_CASCADELAKE \
                       | m_TIGERLAKE | m_COOPERLAKE | m_SAPPHIRERAPIDS \
                       | m_ROCKETLAKE | m_GRANITERAPIDS | m_GRANITERAPIDS_D \
                       | m_DIAMONDRAPIDS)

so if you use -mtune=sapphirerapids it should work.

Based on that I think this is invalid.