From: Richard Henderson <r...@redhat.com> Date: Mon, 03 Oct 2011 09:49:37 -0700
> You might have a look at the "Vector Shuffle" thread, where we've been > trying to provide builtin-level access to this feature. We've not added > an rtx-level code for this because so far there isn't *that* much in > common between the various cpus. They all seem to differ in niggling > details... > > You'll have a somewhat harder time than i386 for this feature, given > that you've got to pack bytes into nibbles. But it can certainly be done. Ok, I'll take a look.