On Thu, Feb 18, 2010 at 06:00:07PM -0800, Tim Prince wrote: > On 2/18/2010 4:54 PM, Joe Buck wrote: > > > > But maybe I didn't ask the right question: can any x86 experts comment on > > recently made x86 CPUs that would not function correctly with code > > produced by --with-arch=i486? Are there any? > > > > > All CPUs still in production are at least SSE3 capable, unless someone > can come up with one of which I'm not aware. Intel compilers made the > switch last year to requiring SSE2 capability for the host, as well as > in the default target options, even for 32-bit. All x86_64 or X64 CPUs > for which any compiler was produced had SSE2 capability, so it is > required for those 64-bit targets.
I'm sure that Intel and AMD haven't made any in ages, I just wanted to make sure that there are no low-end third-party cores made recently (say, by Cyrix, VIA, or someone else) that lack atomics. I guess that the answer is no.
