[Bug lto/89884] g++.dg/lto/pr89335 FAILs

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89884

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2019-07-01
     Ever confirmed|0                           |1

--- Comment #2 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
The problem here is that -fno-use-linker-plugin implies fat LTO. So we compile
the code twice - once at compile time and once at link-time and therefore also
output the warning twice.

I do not see how to prevent this from hapenning - this is behaviour of all late
warnings with -ffat-lto-objects.

Is there a way to make testcase tolerate duplicated warnings or limit to plugin
enabled only?