From dc52212873dddc38308c55b4f410cb86a3251b0f Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Tue, 30 Apr 2019 16:07:24 +0200
Subject: [PATCH] [dxbc] Disable Constant Buffer Range Check on AMD
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The hardware already behaves as intended, no need to waste GPÜ cycles.
---
 src/dxbc/dxbc_options.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/dxbc/dxbc_options.cpp b/src/dxbc/dxbc_options.cpp
index 94aceb593..1189689e4 100644
--- a/src/dxbc/dxbc_options.cpp
+++ b/src/dxbc/dxbc_options.cpp
@@ -29,8 +29,10 @@ namespace dxvk {
       = adapter->matchesDriver(DxvkGpuVendor::Nvidia, VK_DRIVER_ID_NVIDIA_PROPRIETARY_KHR, 0, 0);
     
     strictDivision           = options.strictDivision;
-    constantBufferRangeCheck = options.constantBufferRangeCheck;
     zeroInitWorkgroupMemory  = options.zeroInitWorkgroupMemory;
+
+    if (DxvkGpuVendor(devInfo.core.properties.vendorID) != DxvkGpuVendor::Amd)
+      constantBufferRangeCheck = options.constantBufferRangeCheck;
     
     // Disable early discard on RADV due to GPU hangs
     // Disable early discard on Nvidia because it may hurt performance