https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61730
--- Comment #1 from Roland Schulz <roland at rschulz dot eu> --- It is probably a duplicate of 54412 or 49001 (which seem duplicates of each other). The bugs I found previous where about 16-byte alignment and that has been fixed. But the 32-byte alignment required for AVX doesn't seem to be supported under Windows (both under Cygwin and Mingw).