From db3cd886b8303a8a5aff20c76660ed49c2365f94 Mon Sep 17 00:00:00 2001
From: Matthias Vogelgesang <matthias.vogelgesang@gmail.com>
Date: Sat, 23 May 2020 20:04:38 +0200
Subject: backproject: unroll for navi10

With that an RX 5600 XT achieves ~22 slices/s according to the benchmark
protocol from https://tomopedia.github.io/software/ufo.
---
 src/kernels/backproject.cl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/kernels/backproject.cl b/src/kernels/backproject.cl
index 4ee84de..8a81790 100644
--- a/src/kernels/backproject.cl
+++ b/src/kernels/backproject.cl
@@ -81,6 +81,9 @@ backproject_tex (read_only image2d_t sinogram,
 #endif
 #ifdef DEVICE_QUADRO_M6000
 #pragma unroll 2
+#endif
+#ifdef DEVICE_GFX1010
+#pragma unroll 4
 #endif
     for(int proj = 0; proj < n_projections; proj++) {
         float h = by * sin_lut[angle_offset + proj] + bx * cos_lut[angle_offset + proj] + axis_pos;
-- 
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