Hi Miles, anyway I am not using dynamic memory; I am trying to load from the parameters of the function. I don't understand at all if this has any relation with libc. Anyway thanks for the information, Janddro Miles Bader-2 wrote: > > Tim Prince <n8tm@xxxxxxx> writes: >> You would require _attribute__(aligned) and similar gcc extensions to >> inform the compiler about alignments so as to enable more use of aligned >> instructions. Without those, it's not practical to auto-vectorize short >> loops, except by explicit low-level coding (e.g. sse intrinsics). In >> any case, a loop of trip 9 might not be efficiently vectorizable. > > The problem I had when I played with this sort of thing before, was not > gcc, but libc, which doesn't align general allocations enough for SSE > (and I gather the libc devs have no intention of adding such a feature), > so one needs to jump through a lot of hoops to make sure heap-allocated > stuff is aligned properly. It seemed like a big pain ... > > -Miles > > -- > Suburbia: where they tear out the trees and then name streets after them. > > -- View this message in context: http://old.nabble.com/Vector-parameter-loads-to-SSE-registers-tp30453479p30462579.html Sent from the gcc - Help mailing list archive at Nabble.com.
