Allow passing sized array to unsized array parameter. (#4744)

1 files changed, 42 insertions, 0 deletions

diff --git a/tests/language-feature/unsized-array.slang b/tests/language-feature/unsized-array.slang
new file mode 100644
index 000000000..c4479867e
--- /dev/null
+++ b/tests/language-feature/unsized-array.slang
@@ -0,0 +1,42 @@
+//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK):-compute -output-using-type
+//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK):-vk -compute -output-using-type
+
+//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
+RWStructuredBuffer<int> outputBuffer;
+
+int g(int arr[])
+{
+    int tmp[] = arr;
+    return tmp.getCount();
+}
+
+int test(int arr[])
+{
+    return arr[0] + g(arr);
+}
+
+int test2<T>(inout T arr[])
+{
+    return arr.getCount();
+}
+
+[numthreads(1, 1, 1)]
+void computeMain(int3 dispatchThreadID: SV_DispatchThreadID)
+{
+    int arr[3] = {1, 2, 3};
+
+    // CHECK: 4
+    outputBuffer[0] = test(arr);
+
+    // CHECK: 3
+    outputBuffer[1] = test2(arr);
+
+    int arr2[2] = { 1, 2 };
+
+    // CHECK: 3
+    outputBuffer[2] = test(arr2);
+
+    // CHECK: 2
+    outputBuffer[3] = test2(arr2);
+
+}