[Bug c++/99965] New: segfault only happening with -O3

[juanlucasrey at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99965

            Bug ID: 99965
           Summary: segfault only happening with -O3
           Product: gcc
           Version: 7.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: juanlucasrey at gmail dot com
  Target Milestone: ---

Created attachment 50526
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50526&action=edit
file to reproduce

the following file runs fine with -O0, -O1 or -O2 but has a segmentation fault
when compiled with -O3

g++ bug.cpp -o bug -O3 && ./bug

I am executing this in a red hat docker container (if it matters)