https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97324
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> --- There is no consistency. Targets that have all of -march=, -mcpu= and -mtune=: aarch64, arm, cris, i386 (-mcpu= deprecated and treated as -mtune=), m68k Targets that have just -march= and -mtune=: gcn, mips, riscv, s390 Targets that have just -march= and -mcpu=: csky, iq2000, nds32 Targets that have just -mcpu= and -mtune=: alpha, arc, rs6000, sparc, visium Targets that have just -mcpu=: bfin, frv, m32c, microblaze, msp430, rl78, rx, tilegx, tilepro Targets that have just -mtune=: ia64, mn10300 Targets that have just -march=: c6x, nios2, pa
