const athlon64: CpuModel = .{ .name = "athlon64", .llvm_name = "athlon64", .features = featureSet(&.{.3dnowa, .64bit, .cmov, .cx8, .fast_scalar_shift_masks, .fxsr, .nopl, .sbb_dep_breaking, .slow_shld, .slow_unaligned_mem_16, .sse2, .vzeroupper, .x87}) };