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

[hjl.tools at gmail dot com]

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

--- Comment #31 from H.J. Lu <hjl.tools at gmail dot com> ---
*** Bug 86828 has been marked as a duplicate of this bug. ***