[Bug c++/89080] New: ICE with immediately invoked constexpr lambda

[chss95cs at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89080

            Bug ID: 89080
           Summary: ICE with immediately invoked constexpr lambda
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: chss95cs at gmail dot com
  Target Milestone: ---

https://godbolt.org/z/1IOgpU

Flags were -fconcepts -std=gnu++2a