https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78379
--- Comment #33 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> --- (In reply to Thomas Koenig from comment #32) > Created attachment 41406 [details] > Additional files for the previous patch > > Here are the new files for the patch. Well I tried to apply the patch and test without using maintainer mode. Running my tests in the debugger, breaking and dis-assembly shows xmmm instructions and calls to matmul_vanilla so I think I need to enable maintainer mode and rebuild, or something is not quite right. Suggestions?