From: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Date: Wed, 10 Jun 2020 18:06:43 +0000 (-0400)
Subject: pan/mdg: Avoid fusing ld_vary_16 with non-zero component
X-Git-Tag: upstream/21.0.0~8807
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7ac1bb047aa96805199b0d85ee49367f6a2b0531;p=platform%2Fupstream%2Fmesa.git

pan/mdg: Avoid fusing ld_vary_16 with non-zero component

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5423>
---

diff --git a/src/panfrost/midgard/nir_fuse_io_16.c b/src/panfrost/midgard/nir_fuse_io_16.c
index ddeb449..ed4b775 100644
--- a/src/panfrost/midgard/nir_fuse_io_16.c
+++ b/src/panfrost/midgard/nir_fuse_io_16.c
@@ -67,6 +67,11 @@ nir_fuse_io_16(nir_shader *shader)
             if (nir_dest_bit_size(intr->dest) != 32)
                     continue;
 
+            /* We swizzle at a 32-bit level so need a multiple of 2. We could
+             * do a bit better and handle even components though */
+            if (nir_intrinsic_component(intr))
+               continue;
+
             if (!intr->dest.is_ssa)
                continue;