https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85132
--- Comment #11 from Martin Liška <marxin at gcc dot gnu.org> ---
It was changed on trunk in:
commit 371072bf395be11f36ef31bb3cfec06bbfc58597
Author: law <law@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri Sep 1 16:26:00 2017 +0000
* varasm.c (bss_initializer_p): Do not put constants into .bss
(categorize_decl_for_section): Handle bss_initializer_p returning
false when DECL_INITIAL is NULL.
* gcc.target/i386/const-in-bss.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@251602
138bc75d-0d04-0410-961f-82ee72b054a4
Note the using an undefined behavior gives optimizer opportunity to optimize to
any way. In this case GCC 7 generated working and GCC 8 not working code in
case of ffmpeg.
