Dariusz Mazur schrieb: > Florian Klaempfl pisze: >> Dariusz Mazur schrieb: >> >>> Jonas Maebe pisze: >>> >>>>> Of course tSSEVector should be declared in System unit. >>>>> Then any one can use SSE intentionally >>>>> >>>> Why can't you now? It's not like multiplication has any other meaning >>>> for arrays. And declaring "magic compiler types" in the system unit is >>>> something that should be avoided as much as possible (it makes both >>>> the compiler and rtl harder to adapt and understand). >>>> >>> Of course, but SIMD is thing, which has more and more impact to >>> performance. And compiler should respect it (and do this, as Florian >>> said). But till now nobody know, where compiler use SSE instruction. >> >> Of course one knows. For array operations as shown SSE/SSE2 is used if >> enabled. >> _______________________________________________ >> > Ok. I only want to discover how to use it. > if I write > > type > tSSEVector = array[0..1] of double > var > d1 : tSSeVector; > d2 : array[0..1]of tSSEVector; > begin > d1:=d2[0]*d2[1]; > end; > > will be work too?
Yes. > > Or something like this: > > function f ; > > var > > d1,d2,d3 : array[0..4] of integer; > begin > > d1:=d2*d3; > > end; No. Not yet implemented iirc. _______________________________________________ fpc-devel maillist - [email protected] http://lists.freepascal.org/mailman/listinfo/fpc-devel
