18 Feb
2011
18 Feb
'11
9 a.m.
Johan Tibell wrote:
* Could we use built-in compiler rules to catch array copies of known length and replace them with e.g. unrolled loops? My particular use case involves copying small arrays (size: 1-32). Ideally this should be as fast as copying a tuple of the corresponding size but I'm pretty sure we're far off that goal.
Out of idle curiousity, couldn't you use tuples instead of arrays? FWIW, I agree that doing something cleverer than just calling memcpy could be very worthwhile. As Max points out, you could perhaps try to do something with the LLVM backend. Roman