[Bug middle-end/84016] New: Spec2000 regression around Jan 14 and Jan 19 2018

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84016

            Bug ID: 84016
           Summary: Spec2000 regression around Jan 14 and Jan 19 2018
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hubicka at gcc dot gnu.org
  Target Milestone: ---

There is noticeable regression in specfp2000 in mgrid (4700-4600), facerec
(8000->6600), crafty 4520->4420 at Jan 19
Galgel 14450->14150, apsi 4700->4550, gamess (from 2016) 34->32 at Jan 14-16
On Haswell.

All visible at
https://gcc.opensuse.org/gcc-old/SPEC/CFP/sb-czerny-head-64/recent.html and
https://gcc.opensuse.org/gcc-old/SPEC/CFP/sb-czerny-head-64-2006/recent.html