From: Eric Anholt <eric@anholt.net>
Date: Thu, 23 Jul 2020 21:24:15 +0000 (-0700)
Subject: nir: Expand opt_undef to handle undef channels in a store intrinsic.
X-Git-Url: https://git.libre-soc.org/?p=mesa.git;a=commitdiff_plain;h=5f26c21e62466783cd031c45a39544c992cee202;hp=5f26c21e62466783cd031c45a39544c992cee202

nir: Expand opt_undef to handle undef channels in a store intrinsic.

Instead of only handling all-undef stores, shrink the writemask to just
the defined channels.  Cleans up a bunch of writemasks on prog_to_nir
output in particular.

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6054>
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