From 4e7694fc862ad69b4746373d58fc7f2071385ca2 Mon Sep 17 00:00:00 2001
From: jsmall-nvidia <jsmall@nvidia.com>
Date: Mon, 10 Jan 2022 15:32:34 -0500
Subject: Test for dynamicDispatch/resource internal error (#2071)

* #include an absolute path didn't work - because paths were taken to always be relative.

* Test for internal error with resource/dynamic dispatch.

* Fix typo.

Co-authored-by: Theresa Foley <tfoleyNV@users.noreply.github.com>
---
 tests/current-bugs/resource-dynamic-dispatch.slang | 67 ++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 tests/current-bugs/resource-dynamic-dispatch.slang

(limited to 'tests')

diff --git a/tests/current-bugs/resource-dynamic-dispatch.slang b/tests/current-bugs/resource-dynamic-dispatch.slang
new file mode 100644
index 000000000..0a987b1cf
--- /dev/null
+++ b/tests/current-bugs/resource-dynamic-dispatch.slang
@@ -0,0 +1,67 @@
+//DISABLE_TEST:SIMPLE:-target dxil -entry computeMain -profile cs_6_2
+
+/* Fails with:
+
+(0): internal error 99999: unimplemented feature in Slang compiler: unexpected IR opcode during code emit
+*/
+
+// Dynamic dispatch with a resource type
+RWStructuredBuffer<float> outputBuffer;
+
+interface IGetTexture
+{
+    Texture2D<float> getTexture();
+};
+
+struct SomeData : IGetTexture
+{
+    Texture2D<float> getTexture() { return tex; }
+    Texture2D<float> tex;
+};
+
+interface IInterface
+{
+    associatedtype Type;
+    IGetTexture getType();
+};
+
+// Need public to make these conformances available
+public struct A : IInterface
+{
+    typedef SomeData Type;
+    IGetTexture getType() { Type t = { gTexA }; return t; }
+};
+
+public struct B : IInterface
+{
+    typedef SomeData Type;
+    IGetTexture getType() { Type t = { gTexB }; return t; }
+};
+
+Texture2D<float> gTexA, gTexB;
+
+
+[numthreads(4, 1, 1)]
+void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
+{
+	uint tid = dispatchThreadID.x;
+
+    A a;
+    B b;
+    
+    IInterface intf;
+    
+    if (tid & 1)
+    {
+        intf = a;
+    }
+    else
+    {
+        intf = b;
+    }
+    
+    var getTex = intf.getType();
+    let tex = getTex.getTexture();
+    
+	outputBuffer[tid] = tex.Load(int3(tid, tid, 0));
+}
\ No newline at end of file
-- 
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