Cleanups to `ParameterBlock<T>` behavior. (#304)

* Cleanups to `ParameterBlock<T>` behavior.

These add some more realistic tests using the `ParameterBlock<T>` support, and show that it can work with the "rewriter" mode.

Unfortunately, this code does *not* currently work with the rewriter + the IR at once. That will need to be fixed in a follow-on change, because I now see that the root problem is pretty ugly.

* cleanup

1 files changed, 25 insertions, 0 deletions

diff --git a/tests/compute/rewriter-parameter-block.slang b/tests/compute/rewriter-parameter-block.slang
new file mode 100644
index 000000000..830f22f4e
--- /dev/null
+++ b/tests/compute/rewriter-parameter-block.slang
@@ -0,0 +1,25 @@
+// rewriter-parameter-block.slang
+//TEST_IGNORE_FILE:
+
+// A type that mixes uniform and resource fields
+struct Data
+{
+	int val;
+	RWStructuredBuffer<int> buf;
+};
+
+// A function that uses that type
+int test(Data data, int val)
+{
+	return data.val + data.buf[val];
+}
+
+// A global-scope parameter block of the mixed type
+ParameterBlock<Data> gA;
+
+// A constant buffer declaration containing the mixed type
+cbuffer C
+{
+	int extra;
+	ParameterBlock<Data> gB;
+};