On Tue, Sep 7, 2021 at 3:57 AM Jonathan Wakely via Gcc-help <gcc-help@xxxxxxxxxxx> wrote: > > On Tue, 7 Sep 2021, 08:03 unlvsur unlvsur via Gcc-help, < > gcc-help@xxxxxxxxxxx> wrote: > > > I try to cross compile to another slower machine. -march=native works on > > that architectures, but I would like to know what is the value of > > -march=??? For -march=native. Is there a way to print march value out?? > > > > It doesn't choose a single value. It enables all the individual options > like -msse and that combination of options might not correspond to any > particular -march value. Is that true? I mean, in principle, I know I've reported a bug where -march=native scanned /proc/cpuinfo (or however it got the info) and came up with a different result than -march=k8 (or whatever I was reporting at the time), but that was a bug that some helpful people fixed. If gcc doesn't have an -march for a particular esoteric arch, then fine, but if it does, I'd think that this would be a bug similar to what I experienced previously.
