https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122572
--- Comment #13 from Wilco <wilco at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #10) > (In reply to Sam James from comment #2) > > Ah, works with 14 + -fno-schedule-insns unfortunately. > > That is because GCC 14 didn't implement the C23 struct tagging rules. > So I am 99% sure a bisect with -std=c23 will point to the commit that > adds/touches the struct tagging rules part of the front-end. This is a good call - there are indeed 2 identical structures. If I comment out the unused optStruct2 or add an extra member, it's all fine.
