Hi! On Wed, Oct 07, 2020 at 04:08:12PM -0500, will schmidt wrote: > On Mon, 2020-10-05 at 11:51 -0700, Carl Love wrote: > > +/* Sign extend builtins that work on ISA 3.0, but not defined until ISA > > 3.1. */ > > I have mixed feelings about straddling the ISA 3.0 and 3.1 ; but not > sure how to properly improve. (I defer).
The builtins are not defined in the ISA. The instructions generated by these builtins are ISA 3.0 insns, but the builtins themselves were only defined contemporary with ISA 3.1. I don't know how to write that comment more clearly. Well, maybe we have to write it out, not everything is best explained in few words? Segher
