> I've scanned the documentation and there is no indication of any
> preprocessor predefines or anything like that.
>
> And keep in mind that __VIS__ is our very own invention.
>
> Sun's compilers never predefined this.
>
> Their makefiles do for various targets in the MediaLib sources, but that's
> a source tree and header file localized convention.
>
> Sun also never provided intrinsics other than via assembler inlines in
> their VIS header. They were never compiler builtins like our's. The
> user had to define __VIS__ on the command line to get visibility of
> the routines they wanted from Sun's VIS inline assembler header file.
>
> Sun also does not provide, and is almost certainly not going to ever
> provide crypto intrinsics.
>
> Therefore there is no convention to follow and we can do whatever we want
> here.
OK, thanks. I keep thinking that we should use -mcpu=sparc4/-D__sparc4__ for
new instructions in the SPARC-T4 architecture that aren't related to VIS.
And given Rainer's insight, I agree that switching to the -m{32,64} -xarch=
scheme with recent assemblers is the way to go. I'll try and get my hands on
one of them...
--
Eric Botcazou
