https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107014
--- Comment #4 from Jiri Slaby <jirislaby at gmail dot com> --- (In reply to Alexander Monakov from comment #3) > It was added to force inlining of small helpers that outgrow limits when > building with gcov profiling: (with clang) > I am surprised that "flatten" blows up on this function. Is that with any > config, or again some specific settings like gcov? Is there an existing lkml > thread about this? Yes, linked in the commit log: https://lore.kernel.org/all/cak8p3a2zwfnexksm8k_suhhwkor17jfo3xaplxjzfpqx0eu...@mail.gmail.com/