On Fri, 2006-07-14 at 09:03 +0000, Kevin Kofler wrote:
Arjan van de Ven <arjan <at> fenrus.demon.nl> writes:
> SSE in 32 bit is not "just used" by gcc
What about -ftree-vectorize?
that is, on 32 bit, not so cheap since it means transfering FP from the
x87 fpu to sse and back a lot.
And -mfpmath=sse?
doesn't that also change the ABI?
All this SSE stuff is really useful for 64 bit x86... but for 32 bit...
a LOT less so due to the ABI/calling convention restrictions that 32 bit
suffers from.