[Bug c/125252] [15/16/17 regression] TBAA vs struct type in C23 (notmuch miscompiled)

[uecker at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125252

--- Comment #5 from uecker at gcc dot gnu.org ---
Created attachment 64416
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=64416&action=edit
test

Probably this.