On Mon, Sep 02, 2024 at 04:24:53PM +0200, Nina Schoetterl-Glausch wrote: > On Tue, 2024-08-27 at 16:08 +0200, Nico Boehr wrote: > > Quoting Nina Schoetterl-Glausch (2024-06-20 16:17:00) > > > > And: is long displacement even appropriate here? > > > > The cast also is hard to understand. Since this is not super high > > performance code, do we just want to clobber memory so this gets a bit > > easier to understand? > > > > > + [len] "+RT"(res[0]) > > > > Same question about RT as above. > > Long, but providing a short displacement should be fine too. > Not sure if there is any benefit to letting the compiler choose. There are some older gcc compilers around which fail to compile if you specify T for long displacement, but the compiler sees that a short displacement would work. So please specify RT to avoid such compile bugs. See https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=3e4be43f69da
