https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91027
--- Comment #5 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot
Uni-Bielefeld.DE> ---
> --- Comment #3 from Jan Hubicka <hubicka at ucw dot cz> ---
> Hi,
> this patch triggers another confusion in ipa-devirt.
> It tries to build type inheritnace graph but since D frotnend produces
> only functions with DECL_VIRTUAL but no BINFOs and other things it
> segfaults eventually.
>
> Working around it makes it to work. So this adds new question why D
> frontend needs to set DECL_VIRTUAL?
I've finally managed to try this patch on sparc-sun-solaris2.11. It
turns the previous SEGV into an ICE:
during IPA pass: pure-const
lto1: internal compiler error: in get_odr_type, at ipa-devirt.c:1908
0x715763 get_odr_type(tree_node*, bool)
/vol/gcc/src/hg/trunk/local/gcc/ipa-devirt.c:1908
0x71a5a3 build_type_inheritance_graph()
/vol/gcc/src/hg/trunk/local/gcc/ipa-devirt.c:2255
0x75f723 symbol_table::remove_unreachable_nodes(__FILE*)
/vol/gcc/src/hg/trunk/local/gcc/ipa.c:319
0x414387 read_cgraph_and_symbols(unsigned int, char const**)
/vol/gcc/src/hg/trunk/local/gcc/lto/lto-common.c:2906
0x3f7513 lto_main()
/vol/gcc/src/hg/trunk/local/gcc/lto/lto.c:624
