https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77478
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- Created attachment 39572 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39572&action=edit debug patch I suspect this is a duplicate of PR66598. I have the attached in my local tree which dumps alignment info with -alias.
