[Bug middle-end/64922] [5 Regression] runtime error: member call on misaligned address for type 'struct _Rep'

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64922

--- Comment #6 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Created attachment 34666
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34666&action=edit
Patch I am testing.

The following patch fixes the parameters, but I do not get any
ubsan_unreachable calls. Jakub, can you take a look, please?