[Bug rtl-optimization/70261] [6 Regression] r234265 causes fails on rs6000

[rth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70261

--- Comment #3 from Richard Henderson <rth at gcc dot gnu.org> ---
Created attachment 37993
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37993&action=edit
aarch64 pbase_type_info.ii

This will ICE with just cc1plus -O.