[Bug target/94587] Intrinsics optimization bug with -O2 -march=skylake-avx512

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94587

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Note, clang defaults to -ffp-contract=on which is like =fast (except when you
use FP_CONTRACT pragma).