From 165a95ebb2e9dbdc1b92bdc103470438a5114500 Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Tue, 22 Jul 2025 16:14:07 -0700
Subject: Fix visibility of synthesized Differential typedefs. (#7865)

* Fix visibility of synthesized `Differential` typedefs.

* Delete incorrect test.
---
 tests/autodiff/differential-visibility.slang | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 tests/autodiff/differential-visibility.slang

(limited to 'tests/autodiff')

diff --git a/tests/autodiff/differential-visibility.slang b/tests/autodiff/differential-visibility.slang
new file mode 100644
index 000000000..368155678
--- /dev/null
+++ b/tests/autodiff/differential-visibility.slang
@@ -0,0 +1,26 @@
+//TEST:SIMPLE(filecheck=CHECK): -target spirv
+// CHECK: OpEntryPoint 
+public interface IBSDF
+{
+    public float3 get_value();
+}
+
+public struct AnisotropicGGX // : IDifferentiable
+{
+    float2 alpha = {};
+    public __init() { }
+};
+
+public struct TestDiffVisibility : IBSDF, IDifferentiable
+{
+    public AnisotropicGGX D = {};
+    public __init() { }
+    public float3 get_value() { return { 0.3 }; }
+};
+
+[numthreads(1,1,1)]
+void main()
+{
+    TestDiffVisibility test = {};
+    test.get_value();
+}
-- 
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