https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65064
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
Does -fno-common fix the problem? If it is the case, we need to
treat common symbol differently for ia64 since
.common b#,8,4
.common a#,4,4
won't be placed in small data section reachable via GP reloc. The
problem for ia64 is even if a data symbol is defined locally, we
can't use GP reloc if it isn't placed in small data section.
