https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60976
--- Comment #18 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- (In reply to Jonathan Wakely from comment #15) > For the program in comment 5 most of the difference in compile-time is > caused by the allocator-aware container requirements (additional > constructors which need to be instantiated for every explicit instantiation > in the program and more complicated definitions for copy/move/swap). These > changes are required for C++11 conformance, and I don't see any obvious way > to implement them without affecting compile times. Just to confirm, the regression started with r204848 (~25% compile time slowdown with -O0 on sandybridge).
