[Bug middle-end/91131] Bad bitfield coalescing

[pdj at knaldgas dot dk]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91131

--- Comment #1 from Per Dalgas Jakobsen <pdj at knaldgas dot dk> ---
Created attachment 46585
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46585&action=edit
MWE: Preprocessed C-file