https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65710 --- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> --- To be clear, I think we can postpone fixing the performance issue till 5.2/6. The reason this is a P1 is #c9, #c10, #c11. Vlad, can you please have a look at that?