[Bug target/86735] [8/9 Regression] Bad wrong-code bug with "-march=skylake-avx512 -Ofast"

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86735

--- Comment #22 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fedora 27, kernel 4.16.4-200
Intel(R) Core(TM) i9-7960X CPU
glibc 2.26-30, binutils, 2.29-13