[[vk::shader_record]] (#836)

* * Replaced ShaderRecordNVLayoutModifier with ShaderRecordAttribute
* Allowed attributed [[vk::shader_record] and [[shader_record]]
* Checking there is at most 1 ShaderRecord active
* Small typo fixes

* Slightly improve diagnostic.
Replace expected file.

2 files changed, 47 insertions, 0 deletions

diff --git a/tests/diagnostics/single-shader-record.slang b/tests/diagnostics/single-shader-record.slang
new file mode 100644
index 000000000..4dbf65daa
--- /dev/null
+++ b/tests/diagnostics/single-shader-record.slang
@@ -0,0 +1,41 @@
+// single-shader-record.slang
+//TEST:SIMPLE: -profile sm_6_3 -stage closesthit -entry main -target spirv-assembly
+
+struct ReflectionRay
+{
+    float4 color;
+};
+
+StructuredBuffer<float4> colors;
+
+// There are two constant buffers with shader_record attibuting so should produce and error
+
+layout(shaderRecordNV)
+cbuffer ShaderRecord2
+{
+	uint shaderRecordID2;
+}
+
+[[vk::shader_record]]
+cbuffer ShaderRecord
+{
+	uint shaderRecordID;
+}
+
+void main(
+	BuiltInTriangleIntersectionAttributes 	attributes,
+	in out ReflectionRay 					ioPayload)
+{
+	uint materialID = InstanceIndex()
+		+ InstanceID()
+		+ PrimitiveIndex()
+		+ HitKind()
+		+ shaderRecordID 
+        + shaderRecordID2;
+
+	float4 color = colors[materialID];
+
+	color *= RayTCurrent() - RayTMin();
+
+	ioPayload.color = color;
+}
diff --git a/tests/diagnostics/single-shader-record.slang.expected b/tests/diagnostics/single-shader-record.slang.expected
new file mode 100644
index 000000000..1e80ed758
--- /dev/null
+++ b/tests/diagnostics/single-shader-record.slang.expected
@@ -0,0 +1,6 @@
+result code = -1
+standard error = {
+(0): error 39017: Can have at most one 'shader record' attributed constant buffer found 2.
+}
+standard output = {
+}