[Bug ipa/59947] [4.9 Regression] Segmentation fault with #pragma GCC optimize ("O2"), ICE in get_odr_type

[hubicka at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59947

--- Comment #5 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
So far I was trying to make the users of ipa-devirt to not query ipa-devirt
with -fno-devirtualize or at wrong time. With fold I guess it is only way to
make it do nothing before we build the graph. So the patch is OK. Thanks!