https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58192
--- Comment #8 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to Jakub Jelinek from comment #7) > That is to be determined. Either it might be an x86_64 bug in passing such > types, or FE issue, middle-end. Please note that the error also occurs with -m32, so it seems highly unlikely an x86_64 target-dependent bug.