[Bug ipa/63482] [5 Regression] ICE: in gimple_get_virt_method_for_vtable, at gimple-fold.c:4857

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63482

--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Created attachment 33666
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33666&action=edit
somewhat reduced testcase

 % g++ -c -O2 CustomReactionTest.ii
CustomReactionTest.ii:536:44: internal compiler error: in
gimple_get_virt_method_for_vtable, at gimple-fold.c:4857