http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59800
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- And looking at the libstdc++ code, it indeed has _M_saved initially uninitialized, and all reads of it guarded by _M_saved_available flag. Supposedly predicate aware unitialized warning pass isn't able to figure that out.