https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102059
--- Comment #31 from Michael Meissner <meissner at gcc dot gnu.org> --- Created attachment 52383 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52383&action=edit Simpler patch to fix the problem with power8-fusion. This patch just ignores the -mpower8-fusion option in the callee if the caller does not have it set, and the option wasn't set explicitly.