https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102027
--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> --- (In reply to Andrew Pinski from comment #3) > There are calls to vector_mode_supported_p in stor-layout which changes the It sounds odd to me since vector_mode_supported_p can change overtime. > TYPE_MODE of the RECORD_TYPE depending on if vector_mode_supported_p returns > true or not and classify_argument depends on TYPE_MODE in some cases .... I am not sure if we can fix it in backend alone.