From: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Date: Tue, 31 Mar 2020 16:55:31 +0000 (-0400)
Subject: pan/bi: Fix writes_component for VECTOR
X-Git-Tag: upstream/20.1.8~1834
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2292e2aa10a3ef77ef4d195c09aad334a18bd080;p=platform%2Fupstream%2Fmesa.git

pan/bi: Fix writes_component for VECTOR

I'm not convinced this is the best way and it's sort of a hack, but it
fixes RA for st_vary.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4396>
---

diff --git a/src/panfrost/bifrost/bir.c b/src/panfrost/bifrost/bir.c
index 8256c45..b42db85 100644
--- a/src/panfrost/bifrost/bir.c
+++ b/src/panfrost/bifrost/bir.c
@@ -148,6 +148,10 @@ bi_get_immediate(bi_instruction *ins, unsigned index)
 bool
 bi_writes_component(bi_instruction *ins, unsigned comp)
 {
+        /* TODO: Do we want something less coarse? */
+        if (bi_class_props[ins->type] & BI_VECTOR)
+                return true;
+
         nir_alu_type T = ins->dest_type;
         unsigned size = nir_alu_type_get_type_size(T);
         return ins->writemask & (0xF << (comp * (size / 8)));