Fixed marshalling ArrayView.Empty as kernel parameter. (#1131)

m4rs-mt · Dec 1, 2023 · d49fd60 · d49fd60
1 parent c324431
commit d49fd60
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Showing 2 changed files with 22 additions and 1 deletion.
diff --git a/Src/ILGPU.Tests/MemoryBufferOperations.tt b/Src/ILGPU.Tests/MemoryBufferOperations.tt
@@ -109,6 +109,27 @@ namespace ILGPU.Tests
         {
             output[index] = input[index];
         }
+
+        internal static void EmptyView_Kernel<T>(
+            Index1D index,
+            ArrayView1D<T, Stride1D.Dense> output)
+            where T : unmanaged
+        {
+            if (index < output.Length)
+                output[index] = default(T);
+        }
+
+<#  foreach (var type in copyTypes) { #>
+        [Fact]
+        [KernelMethod(nameof(EmptyView_Kernel))]
+        public void EmptyView_<#= type.Name #>()
+        {
+            Execute<Index1D, <#= type.Type #>>(
+                42,
+                ArrayView1D<<#= type.Type #>, Stride1D.Dense>.Empty);
+        }
+
+<#  } #>
 
         internal static void ZeroLength_Kernel<T>(
             Index1D index,

diff --git a/Src/ILGPU/Backends/PointerViews/Utilities.cs b/Src/ILGPU/Backends/PointerViews/Utilities.cs
@@ -92,7 +92,7 @@ public static FieldInfo GetLengthField(Type implType) =>
         /// <returns>The underlying native pointer.</returns>
         private static IntPtr GetNativePtr<T>(in ArrayView<T> view)
             where T : unmanaged =>
-            view.Buffer.NativePtr;
+            view.Buffer?.NativePtr ?? IntPtr.Zero;
 
         /// <summary>
         /// Gets the native-pointer method for the given element type.