[Bug target/83252] [8 Regression] Wrong code with "-march=skylake-avx512 -O3"

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83252

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-12-05
                 CC|                            |vmakarov at gcc dot gnu.org
   Target Milestone|---                         |8.0
            Summary|Wrong code with             |[8 Regression] Wrong code
                   |"-march=skylake-avx512 -O3" |with "-march=skylake-avx512
                   |                            |-O3"
     Ever confirmed|0                           |1

--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
This broke again with r255377.
Testcase in patch form at
https://gcc.gnu.org/ml/gcc-patches/2017-12/msg00133.html