Don't treat StrcturedBuffer<IFoo> as a specializable param. (#5645)

* Don't treat StrcturedBuffer<IFoo> as a specializable param.

* Fix RHI.

1 files changed, 27 insertions, 0 deletions

diff --git a/tests/bugs/dyn-dispatch-single-conformance.slang b/tests/bugs/dyn-dispatch-single-conformance.slang
new file mode 100644
index 000000000..eae0fee07
--- /dev/null
+++ b/tests/bugs/dyn-dispatch-single-conformance.slang
@@ -0,0 +1,27 @@
+//TEST:COMPARE_COMPUTE(filecheck-buffer=CHECK): -output-using-type
+
+interface IFoo
+{
+    float3 get();
+}
+
+struct Foo : IFoo
+{
+    float3 val;
+    float3 get() { return val; }
+};
+
+//TEST_INPUT: type_conformance Foo:IFoo=0
+
+//TEST_INPUT:set foo = ubuffer(data=[0 0 0 0 1.0 2.0 3.0 0.0], stride=4)
+StructuredBuffer<IFoo> foo;
+
+//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
+RWStructuredBuffer<float> outputBuffer;
+
+[numthreads(1,1,1)]
+void computeMain()
+{
+    // CHECK: 1.0
+    outputBuffer[0] = foo[0].get().x;
+}
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