On Tue, 9 Aug 2011 23:19:05 +0200, Vincent Lejeune <v...@ovi.com> wrote: > From: vlj <v...@ovi.com> > > This optimisation pass will look for and pack together vector (up to > vec3) and scalar in function body. It only concerns local variable, > not temporary which should however be packed as a side effect. It > should reduce register pressure.
Backends that want this have to do it on their own anyway for the temporary values they create as a result of expression processing. I don't see why this would be done at the HIR level.
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