From 36f8d654dc3d464f5a285da1eed786bf9b138329 Mon Sep 17 00:00:00 2001
From: baldurk <baldurk@baldurk.org>
Date: Thu, 2 Oct 2025 14:17:20 +0100
Subject: [PATCH] Add NULL aliasing barrier around buffer discard patterns

---
 renderdoc/driver/d3d12/d3d12_debug.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/renderdoc/driver/d3d12/d3d12_debug.cpp b/renderdoc/driver/d3d12/d3d12_debug.cpp
index fa56121e4..d727764f1 100644
--- a/renderdoc/driver/d3d12/d3d12_debug.cpp
+++ b/renderdoc/driver/d3d12/d3d12_debug.cpp
@@ -1394,9 +1394,16 @@ void D3D12DebugManager::FillWithDiscardPattern(ID3D12GraphicsCommandListX *cmd,
       FillBuffer(patternBuf, 0, pattern.data(), size);
     }
 
+    D3D12_RESOURCE_BARRIER b = {};
+    b.Type = D3D12_RESOURCE_BARRIER_TYPE_ALIASING;
+
+    cmd->ResourceBarrier(1, &b);
+
     // fill the destination with a copy from the pattern buffer
     cmd->CopyBufferRegion(res, 0, patternBuf, 0, size);
 
+    cmd->ResourceBarrier(1, &b);
+
     return;
   }