"Jakub Jelinek" <ja...@redhat.com> wrote: [...]
> And for -m32 it is also the last option that wins, but as with > many other cases just last one from certain set of options. [...] > The -mISA options are processed left to right after as well as BEFORE > setting base from -march=. In other words: although -march= selects a (documented sub)set of -mISA options, it does NEITHER reset any -mISA option set NOR any -mno-ISA option reset BEFORE or AFTER itself, i.e. all -m[no-]ISA options have precedence even if they preceed -march=. Just document that! Stefan