pan/bi: Add .shadow modifier to TEX_GATHER

Although TEX_GATHER looks like TEX_FETCH, it does support shadow comparators
like TEX_SINGLE. Model this in the IR so we can use it.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15586>

diff --git a/src/panfrost/bifrost/ISA.xml b/src/panfrost/bifrost/ISA.xml
index 0ae1fba0d34f9bdbdc4dedcfb4c42bb3e00ea9cf..0d3b4fae3c6b8e844fcbc64ea4429c3e15330be2 100644 (file)
--- a/src/panfrost/bifrost/ISA.xml
+++ b/src/panfrost/bifrost/ISA.xml
@@ -8517,6 +8517,7 @@
     <immediate name="sr_count" size="4" pseudo="true"/>
     <mod name="texel_offset" start="9" size="1" opt="texel_offset"/>
     <mod name="skip" start="9" size="1" opt="skip"/>
+    <mod name="shadow" start="9" size="1" opt="shadow"/>
     <mod name="array_enable" start="9" size="1" opt="array_enable"/>
     <mod name="integer_coordinates" start="9" size="1" opt="integer_coordinates"/>
     <mod name="fetch_component" start="9" size="2">