panfrost/midgard: Vectorize I/O

This uses the new mesa/st functionality for NIR I/O vectorization, which
eliminates a number of corner cases (resulting in assorted dEQP
failures and regressions) and should improve performance substantial due
to lessened pressure on the load/store pipe.

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