[Bug c/123309] [16 Regression] checking ICE with transparent union since r16-1351-gc1904cd27b2bb6

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123309

--- Comment #3 from uecker at gcc dot gnu.org ---
Created attachment 63168
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63168&action=edit
patch

On top of the patch for PR121081