From 58dcf77c0890e54ee4e6995de7815ae7560856ec Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Sat, 15 Jun 2019 12:56:29 +0200
Subject: [PATCH] [dxbc] Disable atomic counter optimization on old RADV
 versions

Breaks TressFX in Tomb Raider 2013 for some reason, whereas this works
fine on 19.1 with both LLVM 8.0 and 9.0-git.
---
 src/dxbc/dxbc_options.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/dxbc/dxbc_options.cpp b/src/dxbc/dxbc_options.cpp
index b45e06b0..b54cc10d 100644
--- a/src/dxbc/dxbc_options.cpp
+++ b/src/dxbc/dxbc_options.cpp
@@ -49,6 +49,10 @@ namespace dxvk {
      || adapter->matchesDriver(DxvkGpuVendor::Nvidia, VK_DRIVER_ID_NVIDIA_PROPRIETARY_KHR, 0, 0))
       useSubgroupOpsForEarlyDiscard = false;
     
+    // Disable atomic counters on older RADV versions
+    if (adapter->matchesDriver(DxvkGpuVendor::Amd, VK_DRIVER_ID_MESA_RADV_KHR, 0, VK_MAKE_VERSION(19, 1, 0)))
+      useSubgroupOpsForAtomicCounters = false;
+    
     // Apply shader-related options
     applyTristate(useSubgroupOpsForEarlyDiscard, device->config().useEarlyDiscard);
   }