[Bug c++/70018] [4.9/5/6 Regression] Possible issue around IPO and C++ comdats discovered as pure/const

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70018

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Created attachment 37829
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37829&action=edit
testcase as tar file