On Thu, Oct 22, 2015 at 11:37 AM, Kristian Høgsberg Kristensen
<[email protected]> wrote:
> The scalar destination registers break copy propagation. Instead compute
> the results to a regular register and then reference a component when we
> later use the result as a source.

It might be hairy to get it working, but making copy propagation
handle scalar destinations is the "right" way forward.

If we commit this patch, and later implement support for copy
propagating with scalar destinations, how will we remember to change
this back?
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