RFC: Optimizing for 386
Elliot Lee
sopwith at redhat.com
Wed Jan 19 16:40:32 UTC 2005
On Wed, 19 Jan 2005, Joseph D. Wagner wrote:
> This is not accurate. gcc has two separate sets of optimizations. The
> first (mtune) tunes everything except the ABI. This is the part that is
> optimized for the Pentium 4. The second (march) actually tunes the ABI.
> The second is optimized for 386. In other words, it won't take
> advantage of any instruction that didn't exist on the original 386.
We know this, but the present compile settings still are just fine. Please
go read the archives! :)
Best,
-- Elliot
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