diff --git a/renderdoc/driver/shaders/dxil/dxil_bytecode.h b/renderdoc/driver/shaders/dxil/dxil_bytecode.h
index a83cde601..5b1eeb162 100644
--- a/renderdoc/driver/shaders/dxil/dxil_bytecode.h
+++ b/renderdoc/driver/shaders/dxil/dxil_bytecode.h
@@ -1511,6 +1511,7 @@ public:
   rdcstr GetDebugStatus();
   rdcarray<ShaderEntryPoint> GetEntryPoints();
   void FillEntryPointInterfaces();
+  size_t GetInstructionCount() const;
   rdcstr GetResourceReferenceName(ResourceClass resClass, const BindingSlot &slot) const;
   // false means stop processing
   void ProcessFunctions(std::function<bool(const Function *)> callback) const;
diff --git a/renderdoc/driver/shaders/dxil/dxil_reflect.cpp b/renderdoc/driver/shaders/dxil/dxil_reflect.cpp
index 6e998318e..a8c7083a6 100644
--- a/renderdoc/driver/shaders/dxil/dxil_reflect.cpp
+++ b/renderdoc/driver/shaders/dxil/dxil_reflect.cpp
@@ -1794,4 +1794,14 @@ void Program::ProcessFunctions(std::function<bool(const Function *)> callback) c
       break;
   }
 }
+
+size_t Program::GetInstructionCount() const
+{
+  size_t ret = 0;
+
+  for(size_t i = 0; i < m_Functions.size(); i++)
+    ret += m_Functions[i]->instructions.size();
+
+  return ret;
+}
 };    // namespace DXIL