https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115824
--- Comment #5 from Randy MacLeod <randy.macleod at windriver dot com> --- Andrew, Is Rogério's confirmation, that reverting r12-10250-g8ec265c1464dec avoids the error, sufficient to revert the commit on 12.4 or do you want someone to write a test case, confirm it works on 12.3's tag and then do a git bisect b/w 12.3 and 12.4 ? It would be nice to have the 1-element copy optimization, if we can figure out what's causing the indexing error. I may spend more time and look at the preprocessor output when I'm back from a week off work.