https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91758
--- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > I've got it. It's a usage of an uninitialize member variable in a class: > https://bugs.llvm.org/show_bug.cgi?id=40547#c38 Thanks for catching this!