Mesa (master): pan/mdg: Eliminate 64-bit swizzle packing division

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Module: Mesa
Branch: master
Commit: 4f5b3802dc4c59cb99e3c81144629d5aba9c085a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=4f5b3802dc4c59cb99e3c81144629d5aba9c085a

Author: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Date:   Thu May 21 18:05:29 2020 -0400

pan/mdg: Eliminate 64-bit swizzle packing division

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5154>

---

 src/panfrost/midgard/midgard_emit.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/panfrost/midgard/midgard_emit.c b/src/panfrost/midgard/midgard_emit.c
index 6431dc02c0e..cf283dd3ed5 100644
--- a/src/panfrost/midgard/midgard_emit.c
+++ b/src/panfrost/midgard/midgard_emit.c
@@ -200,7 +200,8 @@ mir_pack_swizzle(unsigned mask, unsigned *swizzle,
         unsigned sz = nir_alu_type_get_type_size(T);
 
         if (reg_mode == midgard_reg_mode_64) {
-                unsigned components = 64 / sz;
+                assert(sz == 64 || sz == 32);
+                unsigned components = (sz == 32) ? 4 : 2;
 
                 packed = mir_pack_swizzle_64(swizzle, components);