From 2b87c00c671b156b8e5926f8967003bf12c65aa7 Mon Sep 17 00:00:00 2001
From: Sai Praveen Bangaru <31557731+saipraveenb25@users.noreply.github.com>
Date: Sat, 27 Apr 2024 02:27:28 -0400
Subject: Fix invoke resolution when dealing with overloded type expressions
 (#4043)

---
 tests/autodiff/differential-type-constructor.slang | 25 ++++++++++++++++++++++
 ...ifferential-type-constructor.slang.expected.txt |  6 ++++++
 2 files changed, 31 insertions(+)
 create mode 100644 tests/autodiff/differential-type-constructor.slang
 create mode 100644 tests/autodiff/differential-type-constructor.slang.expected.txt

(limited to 'tests/autodiff')

diff --git a/tests/autodiff/differential-type-constructor.slang b/tests/autodiff/differential-type-constructor.slang
new file mode 100644
index 000000000..9afff878d
--- /dev/null
+++ b/tests/autodiff/differential-type-constructor.slang
@@ -0,0 +1,25 @@
+//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj -output-using-type
+//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type
+
+struct MyStruct: IDifferentiable 
+{
+    float a;
+    int b;
+}
+
+//TEST_INPUT:ubuffer(data=[0 0 0 0 0], stride=4):out,name=outputBuffer
+RWStructuredBuffer<float> outputBuffer;
+
+[numthreads(1, 1, 1)]
+void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
+{
+    {
+        var dp = diffPair(MyStruct(), MyStruct.Differential());
+
+        outputBuffer[0] = dp.d.a;
+
+        var dp2 = diffPair<MyStruct>(MyStruct(), MyStruct.Differential(1.f));
+
+        outputBuffer[1] = dp2.d.a;
+    }
+} 
\ No newline at end of file
diff --git a/tests/autodiff/differential-type-constructor.slang.expected.txt b/tests/autodiff/differential-type-constructor.slang.expected.txt
new file mode 100644
index 000000000..d9eca87b2
--- /dev/null
+++ b/tests/autodiff/differential-type-constructor.slang.expected.txt
@@ -0,0 +1,6 @@
+type: float
+0.000000
+1.000000
+0.000000
+0.000000
+0.000000
-- 
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