https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85887
--- Comment #1 from Jason Vas Dias <jason.vas.dias at gmail dot com> --- No, it looks like the patch ( https://gcc.gnu.org/bugzilla/attachment.cgi?id=28937 ) is applied to 6.4.1's and 7.3.1's tree-inline.c, only for some reason it is not working for those compilers.
