https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92981
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|ipa |c++
Summary|ICE in |static anonymous union does
|get_partitioning_class, at |not work
|symtab.c:1966 |
Keywords| |link-failure
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I don't know if this is a front-end issue or a middle-end issue.
The problem is unrelated to LTO really.
Take:
static union {
int yz;
int t;
};
struct ra {
static int &dy;
};
int &ra::dy = (yz);
bool
bm ()
{
return ra::dy == yz;
}
int main(void)
{
return !bm();
}
-------- CUT -----
With just -g0, we get a link failure:
/opt/compiler-explorer/gcc-trunk-20210922/bin/../lib/gcc/x86_64-linux-gnu/12.0.0/../../../../x86_64-linux-gnu/bin/ld:
/tmp/ccBdpNQh.o:(.rodata+0x0): undefined reference to `yz'
4.1.2 produced some interesting assembly too:
.local yz
.comm yz,4,4
.local yz
.comm yz,4,4
