https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68263
--- Comment #3 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to H.J. Lu from comment #2) > The maximum stack alignment is 4 byte for IA MCU. That is why > reload generates misaligned load/store. It looks to me that BIGGEST_ALIGNMENT is defined in a wrong way. If you want to use SSE with TARGET_IAMCU, then it needs to be defined to 128.
