Default settings of arch and cpu on ix86

Richard Henderson
Wed Jun 30 23:15:00 GMT 1999

On Tue, Jun 08, 1999 at 09:14:38AM +0200, Andreas Jaeger wrote:
> But this might change.  The pentium and i486 have opcodes that aren't
> supported on i386.

Yes.  The only one remotely useful to the compiler is bswap --
supposing we ever add bits to auto-recognize byte swapping.

We should probably for that reason explicitly make the default
arch i386.  That's not to say that we shouldn't leave the default
tuning to pentium.


More information about the Gcc-patches mailing list