https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110946
Alexander Monakov <amonakov at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |amonakov at gcc dot gnu.org --- Comment #2 from Alexander Monakov <amonakov at gcc dot gnu.org> --- So basically missed inlining at -Os, even memcpy wrappers are not inlined. Can you provide a reproducible testcase? Note that inline functions in mbedtls/library/alignment.h all miss the 'static' qualifier, which affects inlining decisions, and looks like a mistake anyway (if they are really meant to be non-static inlines, shouldn't there be a comment?) Does making them 'static inline' rectify the problem?