Perform type legalization on StructuredBuffer element. (#4767)

1 files changed, 27 insertions, 0 deletions

diff --git a/tests/language-feature/interfaces/empty-type-conformance.slang b/tests/language-feature/interfaces/empty-type-conformance.slang
new file mode 100644
index 000000000..9fee04607
--- /dev/null
+++ b/tests/language-feature/interfaces/empty-type-conformance.slang
@@ -0,0 +1,27 @@
+// Test that we allow empty type conformances.
+
+//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-dx11 -compute  -output-using-type
+//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-vk -compute  -output-using-type
+
+interface TestInterface {
+    float sample();
+}
+struct TestImplementation : TestInterface {
+    float sample() {
+        return 1.0f;
+    }
+};
+
+//TEST_INPUT: set inBuffer = new StructuredBuffer<TestInterface>[new TestImplementation{}];
+StructuredBuffer<TestInterface> inBuffer;
+
+//TEST_INPUT: set outputBuffer = out ubuffer(data=[0 0 0 0], stride=4);
+RWStructuredBuffer<float> outputBuffer;
+
+[shader("compute")]
+[numthreads(1, 1, 1)]
+void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
+{
+    // CHECK: 1.0
+    outputBuffer[0] = inBuffer[0].sample();
+}
\ No newline at end of file