https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102059
--- Comment #32 from Kewen Lin <linkw at gcc dot gnu.org> --- (In reply to Michael Meissner from comment #31) > Created attachment 52383 [details] > 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. Thanks for the patch Mike! IMHO, it can also remove the option -mno-power8-fusion in gcc/testsuite/gcc.dg/lto/pr102059-1_0.c, the case is designed for the usage reflected by this PR.