https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68337
--- Comment #1 from Ilya Enkovich <ienkovich at gcc dot gnu.org> --- The problem is that memcpy is inlined before instrumentation takes place. This causes a lot of statements to copy bounds and thus we get a huge function and significant compilation time. One possible solution is to not inline memcpy. Actually I don't see why we do it. Seems it always happen when size of copied data is known. Another solution is to use wrapper function to copy bounds. This function is not in libmpx yet (it is currently on review) and I don't think it will be ported to GCC5.
