[Mesa-dev] [PATCH] Var packer optimisation.

[Eric Anholt]

On Tue,  9 Aug 2011 23:19:05 +0200, Vincent Lejeune <vljn at ovi.com> wrote:
> From: vlj <vljn at 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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