Dynamic dispatch for static member functions of associatedtypes. (#1404)

1 files changed, 53 insertions, 0 deletions

diff --git a/tests/compute/dynamic-dispatch-2.slang b/tests/compute/dynamic-dispatch-2.slang
new file mode 100644
index 000000000..ade8aeb84
--- /dev/null
+++ b/tests/compute/dynamic-dispatch-2.slang
@@ -0,0 +1,53 @@
+//TEST(compute):COMPARE_COMPUTE:-cpu -xslang -allow-dynamic-code
+
+// Test dynamic dispatch code gen for static member functions
+// of associated type.
+
+interface IAssoc
+{
+    int get();
+    static int getBase();
+}
+interface IInterface
+{
+    associatedtype Assoc : IAssoc;
+	int Compute(int inVal);
+    Assoc getAssoc();
+};
+
+int GenericCompute<T:IInterface>(T obj, int inVal)
+{
+	return obj.Compute(inVal) + T.Assoc.getBase();
+}
+
+struct Impl : IInterface
+{
+    struct Assoc : IAssoc
+    {
+        int val;
+        int get() { return val; }
+        static int getBase() { return -1; }
+    };
+    int base;
+	int Compute(int inVal) { return base + inVal * inVal; }
+    Assoc getAssoc() { Assoc rs; rs.val = 1; return rs; }
+};
+
+int test(int inVal)
+{
+    Impl obj;
+    obj.base = 1;
+	return GenericCompute<Impl>(obj, inVal);
+}
+
+//TEST_INPUT:ubuffer(data=[0 1 2 3], stride=4):out,name=outputBuffer
+RWStructuredBuffer<int> outputBuffer : register(u0);
+
+[numthreads(4, 1, 1)]
+void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
+{
+	uint tid = dispatchThreadID.x;
+	int inVal = outputBuffer[tid];
+	int outVal = test(inVal);
+	outputBuffer[tid] = outVal;
+}