https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89209
--- Comment #5 from Martin Jambor <jamborm at gcc dot gnu.org> --- HWell, no. We create a special default-def SSA to insert into the IL the information that an uninitialized value is being loaded but now the SSA has aggregate type, which should not happen, I guess (even though it surprisingly works). We try to create only one such SSA name for each part of an aggregate. A simple solution would be to create a new one if V_C_E with an aggregate argument is on the RHS. I'll look into the code a bit more to see if I can find other options.
