pan/midgard: Fix load/store pairing

This used a delicate hack to try to find indirect inputs and skip them
as candidates for pairing. Let's use a better criterion -- no sources --
and pair based on that.

We could do better, but that would require more complex data flow
analysis than we're interested in doing here.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
1 file changed